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spell-2021-12-03

Created 3 years agoDiff never expires

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/**

*Submitted for verification at Etherscan.io on 2021-12-06

// hevm: flattened sources of src/DssSpell.sol

// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity =0.6.12 >=0.6.12 <0.7.0;

pragma experimental ABIEncoderV2;

////// lib/dss-exec-lib/src/CollateralOpts.sol

/* pragma solidity ^0.6.12; */

struct CollateralOpts {

bytes32 ilk;

address gem;

address join;

address clip;

address calc;

address pip;

bool isLiquidatable;

bool isOSM;

bool whitelistOSM;

uint256 ilkDebtCeiling;

uint256 minVaultAmount;

uint256 maxLiquidationAmount;

uint256 liquidationPenalty;

uint256 ilkStabilityFee;

uint256 startingPriceFactor;

uint256 breakerTolerance;

uint256 auctionDuration;

uint256 permittedDrop;

uint256 liquidationRatio;

uint256 kprFlatReward;

uint256 kprPctReward;

}

////// lib/dss-exec-lib/src/DssExecLib.sol

// DssExecLib.sol -- MakerDAO Executive Spellcrafting Library

// This program is free software: you can redistribute it and/or modify

// it under the terms of the GNU Affero General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License

// along with this program. If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity ^0.6.12; */

/* pragma experimental ABIEncoderV2; */

/* import { CollateralOpts } from "./CollateralOpts.sol"; */

interface Initializable {

function init(bytes32) external;

}

interface Authorizable {

function rely(address) external;

function deny(address) external;

}

interface Fileable {

function file(bytes32, address) external;

function file(bytes32, uint256) external;

function file(bytes32, bytes32, uint256) external;

function file(bytes32, bytes32, address) external;

}

interface Drippable {

function drip() external returns (uint256);

function drip(bytes32) external returns (uint256);

}

interface Pricing {

function poke(bytes32) external;

}

interface ERC20 {

function decimals() external returns (uint8);

}

interface DssVat {

function hope(address) external;

function nope(address) external;

function ilks(bytes32) external returns (uint256 Art, uint256 rate, uint256 spot, uint256 line, uint256 dust);

function Line() external view returns (uint256);

function suck(address, address, uint) external;

}

interface ClipLike {

function vat() external returns (address);

function dog() external returns (address);

function spotter() external view returns (address);

function calc() external view returns (address);

function ilk() external returns (bytes32);

}

interface DogLike {

function ilks(bytes32) external returns (address clip, uint256 chop, uint256 hole, uint256 dirt);

}

interface JoinLike {

function vat() external returns (address);

function ilk() external returns (bytes32);

function gem() external returns (address);

function dec() external returns (uint256);

function join(address, uint) external;

function exit(address, uint) external;

}

// Includes Median and OSM functions

interface OracleLike_2 {

function src() external view returns (address);

function lift(address[] calldata) external;

function drop(address[] calldata) external;

function setBar(uint256) external;

function kiss(address) external;

function diss(address) external;

function kiss(address[] calldata) external;

function diss(address[] calldata) external;

function orb0() external view returns (address);

function orb1() external view returns (address);

}

interface MomLike {

function setOsm(bytes32, address) external;

function setPriceTolerance(address, uint256) external;

}

interface RegistryLike {

function add(address) external;

function xlip(bytes32) external view returns (address);

}

// https://github.com/makerdao/dss-chain-log

interface ChainlogLike {

function setVersion(string calldata) external;

function setIPFS(string calldata) external;

function setSha256sum(string calldata) external;

function getAddress(bytes32) external view returns (address);

function setAddress(bytes32, address) external;

function removeAddress(bytes32) external;

}

interface IAMLike {

function ilks(bytes32) external view returns (uint256,uint256,uint48,uint48,uint48);

function setIlk(bytes32,uint256,uint256,uint256) external;

function remIlk(bytes32) external;

function exec(bytes32) external returns (uint256);

}

interface LerpFactoryLike {

function newLerp(bytes32 name_, address target_, bytes32 what_, uint256 startTime_, uint256 start_, uint256 end_, uint256 duration_) external returns (address);

function newIlkLerp(bytes32 name_, address target_, bytes32 ilk_, bytes32 what_, uint256 startTime_, uint256 start_, uint256 end_, uint256 duration_) external returns (address);

}

interface LerpLike {

function tick() external returns (uint256);

}

library DssExecLib {

/*****************/

/* WARNING

/*** Constants ***/

/*****************/

The following library code acts as an interface to the actual DssExecLib

library, which can be found in its own deployed contract. Only trust the actual

library's implementation.

address constant public LOG = 0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F;

uint256 constant internal WAD = 10 ** 18;

uint256 constant internal RAY = 10 ** 27;

uint256 constant internal RAD = 10 ** 45;

uint256 constant internal THOUSAND = 10 ** 3;

uint256 constant internal MILLION = 10 ** 6;

uint256 constant internal BPS_ONE_PCT = 100;

uint256 constant internal BPS_ONE_HUNDRED_PCT = 100 * BPS_ONE_PCT;

uint256 constant internal RATES_ONE_HUNDRED_PCT = 1000000021979553151239153027;

function add(uint256 x, uint256 y) internal pure returns (uint256 z) {}

/**********************/

function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {}

/*** Math Functions ***/

function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {}

/**********************/

function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {}

function add(uint256 x, uint256 y) internal pure returns (uint256 z) {

require((z = x + y) >= x);

}

function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {

require((z = x - y) <= x);

}

function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {

require(y == 0 || (z = x * y) / y == x);

}

function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {

z = add(mul(x, y), WAD / 2) / WAD;

}

function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {

z = add(mul(x, y), RAY / 2) / RAY;

}

function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {

z = add(mul(x, WAD), y / 2) / y;

}

function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {

z = add(mul(x, RAY), y / 2) / y;

}

/****************************/

/*** Core Address Helpers ***/

/****************************/

function dai() public view returns (address) { return getChangelogAddress("MCD_DAI"); }

function mkr() public view returns (address) { return getChangelogAddress("MCD_GOV"); }

function vat() public view returns (address) { return getChangelogAddress("MCD_VAT"); }

function cat() public view returns (address) { return getChangelogAddress("MCD_CAT"); }

function dog() public view returns (address) { return getChangelogAddress("MCD_DOG"); }

function jug() public view returns (address) { return getChangelogAddress("MCD_JUG"); }

function pot() public view returns (address) { return getChangelogAddress("MCD_POT"); }

function vow() public view returns (address) { return getChangelogAddress("MCD_VOW"); }

function end() public view returns (address) { return getChangelogAddress("MCD_END"); }

function esm() public view returns (address) { return getChangelogAddress("MCD_ESM"); }

function reg() public view returns (address) { return getChangelogAddress("ILK_REGISTRY"); }

function spotter() public view returns (address) { return getChangelogAddress("MCD_SPOT"); }

function flap() public view returns (address) { return getChangelogAddress("MCD_FLAP"); }

function flop() public view returns (address) { return getChangelogAddress("MCD_FLOP"); }

function osmMom() public view returns (address) { return getChangelogAddress("OSM_MOM"); }

function govGuard() public view returns (address) { return getChangelogAddress("GOV_GUARD"); }

function flipperMom() public view returns (address) { return getChangelogAddress("FLIPPER_MOM"); }

function clipperMom() public view returns (address) { return getChangelogAddress("CLIPPER_MOM"); }

function pauseProxy() public view returns (address) { return getChangelogAddress("MCD_PAUSE_PROXY"); }

function autoLine() public view returns (address) { return getChangelogAddress("MCD_IAM_AUTO_LINE"); }

function daiJoin() public view returns (address) { return getChangelogAddress("MCD_JOIN_DAI"); }

function lerpFab() public view returns (address) { return getChangelogAddress("LERP_FAB"); }

function clip(bytes32 _ilk) public view returns (address _clip) {}

function flip(bytes32 _ilk) public view returns (address _flip) {}

function calc(bytes32 _ilk) public view returns (address _calc) {}

function getChangelogAddress(bytes32 _key) public view returns (address) {}

function setChangelogAddress(bytes32 _key, address _val) public {}

function setChangelogVersion(string memory _version) public {}

function authorize(address _base, address _ward) public {}

function canCast(uint40 _ts, bool _officeHours) public pure returns (bool) {}

function nextCastTime(uint40 _eta, uint40 _ts, bool _officeHours) public pure returns (uint256 castTime) {}

function updateCollateralPrice(bytes32 _ilk) public {}

function setContract(address _base, bytes32 _what, address _addr) public {}

function setContract(address _base, bytes32 _ilk, bytes32 _what, address _addr) public {}

function setValue(address _base, bytes32 _what, uint256 _amt) public {}

function setValue(address _base, bytes32 _ilk, bytes32 _what, uint256 _amt) public {}

function increaseGlobalDebtCeiling(uint256 _amount) public {}

function setIlkDebtCeiling(bytes32 _ilk, uint256 _amount) public {}

function setIlkAutoLineParameters(bytes32 _ilk, uint256 _amount, uint256 _gap, uint256 _ttl) public {}

function setIlkMinVaultAmount(bytes32 _ilk, uint256 _amount) public {}

function setIlkLiquidationPenalty(bytes32 _ilk, uint256 _pct_bps) public {}

function setIlkMaxLiquidationAmount(bytes32 _ilk, uint256 _amount) public {}

function setIlkLiquidationRatio(bytes32 _ilk, uint256 _pct_bps) public {}

function setStartingPriceMultiplicativeFactor(bytes32 _ilk, uint256 _pct_bps) public {}

function setAuctionTimeBeforeReset(bytes32 _ilk, uint256 _duration) public {}

function setAuctionPermittedDrop(bytes32 _ilk, uint256 _pct_bps) public {}

function setKeeperIncentivePercent(bytes32 _ilk, uint256 _pct_bps) public {}

function setKeeperIncentiveFlatRate(bytes32 _ilk, uint256 _amount) public {}

function setLiquidationBreakerPriceTolerance(address _clip, uint256 _pct_bps) public {}

function setIlkStabilityFee(bytes32 _ilk, uint256 _rate, bool _doDrip) public {}

function setStairstepExponentialDecrease(address _calc, uint256 _duration, uint256 _pct_bps) public {}

function whitelistOracleMedians(address _oracle) public {}

function addReaderToWhitelist(address _oracle, address _reader) public {}

function addReaderToWhitelistCall(address _oracle, address _reader) public {}

function allowOSMFreeze(address _osm, bytes32 _ilk) public {}

function addCollateralBase(

bytes32 _ilk,

address _gem,

address _join,

address _clip,

address _calc,

address _pip

) public {}

function addNewCollateral(CollateralOpts memory co) public {}

function sendPaymentFromSurplusBuffer(address _target, uint256 _amount) public {}

function linearInterpolation(bytes32 _name, address _target, bytes32 _ilk, bytes32 _what, uint256 _startTime, uint256 _start, uint256 _end, uint256 _duration) public returns (address) {}

}

function clip(bytes32 _ilk) public view returns (address _clip) {

////// lib/dss-exec-lib/src/DssAction.sol

_clip = RegistryLike(reg()).xlip(_ilk);

}

// DssAction.sol -- DSS Executive Spell Actions

// This program is free software: you can redistribute it and/or modify

// it under the terms of the GNU Affero General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License

// along with this program. If not, see <https://www.gnu.org/licenses/>.

function flip(bytes32 _ilk) public view returns (address _flip) {

/* pragma solidity ^0.6.12; */

_flip = RegistryLike(reg()).xlip(_ilk);

}

function calc(bytes32 _ilk) public view returns (address _calc) {

/* import { DssExecLib } from "./DssExecLib.sol"; */

_calc = ClipLike(clip(_ilk)).calc();

/* import { CollateralOpts } from "./CollateralOpts.sol"; */

}

function getChangelogAddress(bytes32 _key) public view returns (address) {

interface OracleLike_1 {

return ChainlogLike(LOG).getAddress(_key);

function src() external view returns (address);

}

abstract contract DssAction {

using DssExecLib for *;

// Modifier used to limit execution time when office hours is enabled

modifier limited {

require(DssExecLib.canCast(uint40(block.timestamp), officeHours()), "Outside office hours");

}

/****************************/

// Office Hours defaults to true by default.

/*** Changelog Management ***/

// To disable office hours, override this function and

/****************************/

// return false in the inherited action.

/**

function officeHours() public virtual returns (bool) {

@dev Set an address in the MCD on-chain changelog.

return true;

@param _key Access key for the address (e.g. "MCD_VAT")

@param _val The address associated with the _key

function setChangelogAddress(bytes32 _key, address _val) public {

ChainlogLike(LOG).setAddress(_key, _val);

}

/**

// DssExec calls execute. We limit this function subject to officeHours modifier.

@dev Set version in the MCD on-chain changelog.

function execute() external limited {

@param _version Changelog version (e.g. "1.1.2")

actions();

function setChangelogVersion(string memory _version) public {

ChainlogLike(LOG).setVersion(_version);

}

/**

@dev Set IPFS hash of IPFS changelog in MCD on-chain changelog.

@param _ipfsHash IPFS hash (e.g. "QmefQMseb3AiTapiAKKexdKHig8wroKuZbmLtPLv4u2YwW")

function setChangelogIPFS(string memory _ipfsHash) public {

ChainlogLike(LOG).setIPFS(_ipfsHash);

}

/**

@dev Set SHA256 hash in MCD on-chain changelog.

@param _SHA256Sum SHA256 hash (e.g. "e42dc9d043a57705f3f097099e6b2de4230bca9a020c797508da079f9079e35b")

function setChangelogSHA256(string memory _SHA256Sum) public {

ChainlogLike(LOG).setSha256sum(_SHA256Sum);

}

// DssAction developer must override `actions()` and place all actions to be called inside.

// The DssExec function will call this subject to the officeHours limiter

// By keeping this function public we allow simulations of `execute()` on the actions outside of the cast time.

function actions() public virtual;

/**********************/

// Provides a descriptive tag for bot consumption

/*** Authorizations ***/

// This should be modified weekly to provide a summary of the actions

/**********************/

// Hash: seth keccak -- "$(wget https://<executive-vote-canonical-post> -q -O - 2>/dev/null)"

/**

function description() external virtual view returns (string memory);

@dev Give an address authorization to perform auth actions on the contract.

@param _base The address of the contract where the authorization will be set

// Returns the next available cast time

@param _ward Address to be authorized

function nextCastTime(uint256 eta) external returns (uint256 castTime) {

require(eta <= uint40(-1));

function authorize(address _base, address _ward) public {

castTime = DssExecLib.nextCastTime(uint40(eta), uint40(block.timestamp), officeHours());

Authorizable(_base).rely(_ward);

}

/**

@dev Revoke contract authorization from an address.

@param _base The address of the contract where the authorization will be revoked

@param _ward Address to be deauthorized

function deauthorize(address _base, address _ward) public {

Authorizable(_base).deny(_ward);

}

/**

@dev Delegate vat authority to the specified address.

@param _usr Address to be authorized

function delegateVat(address _usr) public {

DssVat(vat()).hope(_usr);

}

/**

@dev Revoke vat authority to the specified address.

@param _usr Address to be deauthorized

function undelegateVat(address _usr) public {

DssVat(vat()).nope(_usr);

}

/******************************/

////// lib/dss-exec-lib/src/DssExec.sol

/*** OfficeHours Management ***/

/******************************/

// DssExec.sol -- MakerDAO Executive Spell Template

// This program is free software: you can redistribute it and/or modify

// it under the terms of the GNU Affero General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License

// along with this program. If not, see <https://www.gnu.org/licenses/>.

/**

/* pragma solidity ^0.6.12; */

@dev Returns true if a time is within office hours range

@param _ts The timestamp to check, usually block.timestamp

@param _officeHours true if office hours is enabled.

@return true if time is in castable range

function canCast(uint40 _ts, bool _officeHours) public pure returns (bool) {

if (_officeHours) {

uint256 day = (_ts / 1 days + 3) % 7;

if (day >= 5) { return false; } // Can only be cast on a weekday

uint256 hour = _ts / 1 hours % 24;

if (hour < 14 || hour >= 21) { return false; } // Outside office hours

}

return true;

}

/**

interface PauseAbstract {

@dev Calculate the next available cast time in epoch seconds

function delay() external view returns (uint256);

@param _eta The scheduled time of the spell plus the pause delay

function plot(address, bytes32, bytes calldata, uint256) external;

@param _ts The current timestamp, usually block.timestamp

function exec(address, bytes32, bytes calldata, uint256) external returns (bytes memory);

@param _officeHours true if office hours is enabled.

}

@return castTime The next available cast timestamp

function nextCastTime(uint40 _eta, uint40 _ts, bool _officeHours) public pure returns (uint256 castTime) {

require(_eta != 0); // "DssExecLib/invalid eta"

require(_ts != 0); // "DssExecLib/invalid ts"

castTime = _ts > _eta ? _ts : _eta; // Any day at XX:YY

if (_officeHours) {

interface Changelog {

uint256 day = (castTime / 1 days + 3) % 7;

function getAddress(bytes32) external view returns (address);

uint256 hour = castTime / 1 hours % 24;

}

uint256 minute = castTime / 1 minutes % 60;

uint256 second = castTime % 60;

if (day >= 5) {

interface SpellAction {

castTime += (6 - day) * 1 days; // Go to Sunday XX:YY

function officeHours() external view returns (bool);

castTime += (24 - hour + 14) * 1 hours; // Go to 14:YY UTC Monday

function description() external view returns (string memory);

castTime -= minute * 1 minutes + second; // Go to 14:00 UTC

function nextCastTime(uint256) external view returns (uint256);

} else {

}

if (hour >= 21) {

if (day == 4) castTime += 2 days; // If Friday, fast forward to Sunday XX:YY

contract DssExec {

castTime += (24 - hour + 14) * 1 hours; // Go to 14:YY UTC next day

castTime -= minute * 1 minutes + second; // Go to 14:00 UTC

Changelog constant public log = Changelog(0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F);

} else if (hour < 14) {

uint256 public eta;

castTime += (14 - hour) * 1 hours; // Go to 14:YY UTC same day

bytes public sig;

castTime -= minute * 1 minutes + second; // Go to 14:00 UTC

bool public done;

}

bytes32 immutable public tag;

}

address immutable public action;

}

uint256 immutable public expiration;

PauseAbstract immutable public pause;

// Provides a descriptive tag for bot consumption

// This should be modified weekly to provide a summary of the actions

// Hash: seth keccak -- "$(wget https://<executive-vote-canonical-post> -q -O - 2>/dev/null)"

function description() external view returns (string memory) {

return SpellAction(action).description();

}

/**************************/

function officeHours() external view returns (bool) {

/*** Accumulating Rates ***/

return SpellAction(action).officeHours();

/**************************/

/**

@dev Update rate accumulation for the Dai Savings Rate (DSR).

function accumulateDSR() public {

Drippable(pot()).drip();

}

/**

@dev Update rate accumulation for the stability fees of a given collateral type.

@param _ilk Collateral type

function accumulateCollateralStabilityFees(bytes32 _ilk) public {

Drippable(jug()).drip(_ilk);

}

/*********************/

function nextCastTime() external view returns (uint256 castTime) {

/*** Price Updates ***/

return SpellAction(action).nextCastTime(eta);

/*********************/

/**

@dev Update price of a given collateral type.

@param _ilk Collateral type

function updateCollateralPrice(bytes32 _ilk) public {

Pricing(spotter()).poke(_ilk);

}

/****************************/

// @param _description A string description of the spell

/*** System Configuration ***/

// @param _expiration The timestamp this spell will expire. (Ex. now + 30 days)

/****************************/

// @param _spellAction The address of the spell action

/**

constructor(uint256 _expiration, address _spellAction) public {

@dev Set a contract in another contract, defining the relationship (ex. set a new Calc contract in Clip)

pause = PauseAbstract(log.getAddress("MCD_PAUSE"));

@param _base The address of the contract where the new contract address will be filed

expiration = _expiration;

@param _what Name of contract to file

action = _spellAction;

@param _addr Address of contract to file

sig = abi.encodeWithSignature("execute()");

function setContract(address _base, bytes32 _what, address _addr) public {

bytes32 _tag; // Required for assembly access

Fileable(_base).file(_what, _addr);

address _action = _spellAction; // Required for assembly access

}

assembly { _tag := extcodehash(_action) }

/**

tag = _tag;

@dev Set a contract in another contract, defining the relationship (ex. set a new Calc contract in a Clip)

@param _base The address of the contract where the new contract address will be filed

@param _ilk Collateral type

@param _what Name of contract to file

@param _addr Address of contract to file

function setContract(address _base, bytes32 _ilk, bytes32 _what, address _addr) public {

Fileable(_base).file(_ilk, _what, _addr);

}

/**

@dev Set a value in a contract, via a governance authorized File pattern.

@param _base The address of the contract where the new contract address will be filed

@param _what Name of tag for the value (e.x. "Line")

@param _amt The value to set or update

function setValue(address _base, bytes32 _what, uint256 _amt) public {

Fileable(_base).file(_what, _amt);

}

/**

@dev Set an ilk-specific value in a contract, via a governance authorized File pattern.

@param _base The address of the contract where the new value will be filed

@param _ilk Collateral type

@param _what Name of tag for the value (e.x. "Line")

@param _amt The value to set or update

function setValue(address _base, bytes32 _ilk, bytes32 _what, uint256 _amt) public {

Fileable(_base).file(_ilk, _what, _amt);

}

/******************************/

function schedule() public {

/*** System Risk Parameters ***/

require(now <= expiration, "This contract has expired");

/******************************/

require(eta == 0, "This spell has already been scheduled");

// function setGlobalDebtCeiling(uint256 _amount) public { setGlobalDebtCeiling(vat(), _amount); }

eta = now + PauseAbstract(pause).delay();

/**

pause.plot(action, tag, sig, eta);

@dev Set the global debt ceiling. Amount will be converted to the correct internal precision.

@param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)

function setGlobalDebtCeiling(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-global-Line-precision"

setValue(vat(), "Line", _amount * RAD);

}

/**

@dev Increase the global debt ceiling by a specific amount. Amount will be converted to the correct internal precision.

@param _amount The amount to add in DAI (ex. 10m DAI amount == 10000000)

function increaseGlobalDebtCeiling(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-Line-increase-precision"

address _vat = vat();

setValue(_vat, "Line", add(DssVat(_vat).Line(), _amount * RAD));

}

/**

@dev Decrease the global debt ceiling by a specific amount. Amount will be converted to the correct internal precision.

@param _amount The amount to reduce in DAI (ex. 10m DAI amount == 10000000)

function decreaseGlobalDebtCeiling(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-Line-decrease-precision"

address _vat = vat();

setValue(_vat, "Line", sub(DssVat(_vat).Line(), _amount * RAD));

}

/**

@dev Set the Dai Savings Rate. See: docs/rates.txt

@param _rate The accumulated rate (ex. 4% => 1000000001243680656318820312)

@param _doDrip `true` to accumulate interest owed

function setDSR(uint256 _rate, bool _doDrip) public {

require((_rate >= RAY) && (_rate <= RATES_ONE_HUNDRED_PCT)); // "LibDssExec/dsr-out-of-bounds"

if (_doDrip) Drippable(pot()).drip();

setValue(pot(), "dsr", _rate);

}

/**

@dev Set the DAI amount for system surplus auctions. Amount will be converted to the correct internal precision.

@param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)

function setSurplusAuctionAmount(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-vow-bump-precision"

setValue(vow(), "bump", _amount * RAD);

}

/**

@dev Set the DAI amount for system surplus buffer, must be exceeded before surplus auctions start. Amount will be converted to the correct internal precision.

@param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)

function setSurplusBuffer(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-vow-hump-precision"

setValue(vow(), "hump", _amount * RAD);

}

/**

@dev Set minimum bid increase for surplus auctions. Amount will be converted to the correct internal precision.

@dev Equation used for conversion is (1 + pct / 10,000) * WAD

@param _pct_bps The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)

function setMinSurplusAuctionBidIncrease(uint256 _pct_bps) public {

require(_pct_bps < BPS_ONE_HUNDRED_PCT); // "LibDssExec/incorrect-flap-beg-precision"

setValue(flap(), "beg", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));

}

/**

@dev Set bid duration for surplus auctions.

@param _duration Amount of time for bids. (in seconds)

function setSurplusAuctionBidDuration(uint256 _duration) public {

setValue(flap(), "ttl", _duration);

}

/**

@dev Set total auction duration for surplus auctions.

@param _duration Amount of time for auctions. (in seconds)

function setSurplusAuctionDuration(uint256 _duration) public {

setValue(flap(), "tau", _duration);

}

/**

@dev Set the number of seconds that pass before system debt is auctioned for MKR tokens.

@param _duration Duration in seconds

function setDebtAuctionDelay(uint256 _duration) public {

setValue(vow(), "wait", _duration);

}

/**

@dev Set the DAI amount for system debt to be covered by each debt auction. Amount will be converted to the correct internal precision.

@param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)

function setDebtAuctionDAIAmount(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-vow-sump-precision"

setValue(vow(), "sump", _amount * RAD);

}

/**

@dev Set the starting MKR amount to be auctioned off to cover system debt in debt auctions. Amount will be converted to the correct internal precision.

@param _amount The amount to set in MKR (ex. 250 MKR amount == 250)

function setDebtAuctionMKRAmount(uint256 _amount) public {

require(_amount < WAD); // "LibDssExec/incorrect-vow-dump-precision"

setValue(vow(), "dump", _amount * WAD);

}

/**

@dev Set minimum bid increase for debt auctions. Amount will be converted to the correct internal precision.

@dev Equation used for conversion is (1 + pct / 10,000) * WAD

@param _pct_bps The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)

function setMinDebtAuctionBidIncrease(uint256 _pct_bps) public {

require(_pct_bps < BPS_ONE_HUNDRED_PCT); // "LibDssExec/incorrect-flap-beg-precision"

setValue(flop(), "beg", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));

}

/**

@dev Set bid duration for debt auctions.

@param _duration Amount of time for bids.

function setDebtAuctionBidDuration(uint256 _duration) public {

setValue(flop(), "ttl", _duration);

}

/**

@dev Set total auction duration for debt auctions.

@param _duration Amount of time for auctions.

function setDebtAuctionDuration(uint256 _duration) public {

setValue(flop(), "tau", _duration);

}

/**

@dev Set the rate of increasing amount of MKR out for auction during debt auctions. Amount will be converted to the correct internal precision.

@dev MKR amount is increased by this rate every "tick" (if auction duration has passed and no one has bid on the MKR)

@dev Equation used for conversion is (1 + pct / 10,000) * WAD

@param _pct_bps The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)

function setDebtAuctionMKRIncreaseRate(uint256 _pct_bps) public {

setValue(flop(), "pad", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));

}

/**

@dev Set the maximum total DAI amount that can be out for liquidation in the system at any point. Amount will be converted to the correct internal precision.

function cast() public {

@param _amount The amount to set in DAI (ex. 250,000 DAI amount == 250000)

require(!done, "spell-already-cast");

done = true;

function setMaxTotalDAILiquidationAmount(uint256 _amount) public {

pause.exec(action, tag, sig, eta);

require(_amount < WAD); // "LibDssExec/incorrect-dog-Hole-precision"

setValue(dog(), "Hole", _amount * RAD);

}

/**

}

@dev (LIQ 1.2) Set the maximum total DAI amount that can be out for liquidation in the sys

////// src/DssSpell.sol

// This program is free software: you can redistribute it and/or modify

// it under the terms of the GNU Affero General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

// This program is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License

// along with this program. If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity 0.6.12; */

/* pragma experimental ABIEncoderV2; */

/* import "dss-exec-lib/DssExec.sol"; */

/* import "dss-exec-lib/DssAction.sol"; */

contract DssSpellAction is DssAction {

// Provides a descriptive tag for bot consumption

// This should be modified weekly to provide a summary of the actions

// Hash: seth keccak -- "$(wget https://raw.githubusercontent.com/makerdao/community/2dfe2a94162345e448c0353ec0e522038572366a/governance/votes/Executive%20vote%20-%20December%203%2C%202021.md -q -O - 2>/dev/null)"

string public constant override description =

"2021-12-03 MakerDAO Executive Spell | Hash: 0x9068bf87d0ec441f57ff92e2544a3df16d42a481b3e94ec2c37a443031833b84";

// Many of the settings that change weekly rely on the rate accumulator

// described at https://docs.makerdao.com/smart-contract-modules/rates-module

// To check this yourself, use the following rate calculation (example 8%):

// $ bc -l <<< 'scale=27; e( l(1.08)/(60 * 60 * 24 * 365) )'

// A table of rates can be found at

// https://ipfs.io/ipfs/QmefQMseb3AiTapiAKKexdKHig8wroKuZbmLtPLv4u2YwW

// --- Rates ---

uint256 constant ZERO_ONE_PCT_RATE = 1000000000031693947650284507;

uint256 constant ONE_PCT_RATE = 1000000000315522921573372069;

uint256 constant TWO_PCT_RATE = 1000000000627937192491029810;

uint256 constant TWO_FIVE_PCT_RATE = 1000000000782997609082909351;

uint256 constant TWO_SEVEN_FIVE_PCT_RATE = 1000000000860244400048238898;

uint256 constant THREE_PCT_RATE = 1000000000937303470807876289;

uint256 constant FOUR_PCT_RATE = 1000000001243680656318820312;

uint256 constant SIX_PCT_RATE = 1000000001847694957439350562;

uint256 constant SIX_FIVE_PCT_RATE = 1000000001996917783620820123;

// --- Math ---

uint256 constant MILLION = 10 ** 6;

uint256 constant BILLION = 10 ** 9;

// --- GUNIV3DAIUSDC2-A ---

address constant GUNIV3DAIUSDC2 = 0x50379f632ca68D36E50cfBC8F78fe16bd1499d1e;

address constant MCD_JOIN_GUNIV3DAIUSDC2_A = 0xA7e4dDde3cBcEf122851A7C8F7A55f23c0Daf335;

address constant MCD_CLIP_GUNIV3DAIUSDC2_A = 0xB55da3d3100C4eBF9De755b6DdC24BF209f6cc06;

address constant MCD_CLIP_CALC_GUNIV3DAIUSDC2_A = 0xef051Ca2A2d809ba47ee0FC8caaEd06E3D832225;

address constant PIP_GUNIV3DAIUSDC2 = 0xcCBa43231aC6eceBd1278B90c3a44711a00F4e93;

// --- Wallets ---

address constant COM_WALLET = 0x1eE3ECa7aEF17D1e74eD7C447CcBA61aC76aDbA9;

address constant FLIPFLOPFLAP_WALLET = 0x688d508f3a6B0a377e266405A1583B3316f9A2B3;

address constant FEEDBLACKLOOPS_WALLET = 0x80882f2A36d49fC46C3c654F7f9cB9a2Bf0423e1;

address constant ULTRASCHUPPI_WALLET = 0x89C5d54C979f682F40b73a9FC39F338C88B434c6;

address constant FIELDTECHNOLOGIES_WALLET = 0x0988E41C02915Fe1beFA78c556f946E5F20ffBD3;

function actions() public override {

// ----------------------------- Collateral onboarding -----------------------------

// Add GUNIV3DAIUSDC2-A as a new Vault Type

// https://vote.makerdao.com/polling/QmSkHE8T?network=mainnet#poll-detail

DssExecLib.addNewCollateral(

CollateralOpts({

ilk: "GUNIV3DAIUSDC2-A",

gem: GUNIV3DAIUSDC2,

join: MCD_JOIN_GUNIV3DAIUSDC2_A,

clip: MCD_CLIP_GUNIV3DAIUSDC2_A,

calc: MCD_CLIP_CALC_GUNIV3DAIUSDC2_A,

pip: PIP_GUNIV3DAIUSDC2,

isLiquidatable: false,

isOSM: true,

whitelistOSM: true,

ilkDebtCeiling: 10 * MILLION,

minVaultAmount: 15_000,

maxLiquidationAmount: 5 * MILLION,

liquidationPenalty: 1300,

ilkStabilityFee: ONE_PCT_RATE,

startingPriceFactor: 10500,

breakerTolerance: 9500,

auctionDuration: 220 minutes,

permittedDrop: 9000,

liquidationRatio: 10500,

kprFlatReward: 300,

kprPctReward: 10

})

);

DssExecLib.setStairstepExponentialDecrease(MCD_CLIP_CALC_GUNIV3DAIUSDC2_A, 120 seconds, 9990);

DssExecLib.setIlkAutoLineParameters("GUNIV3DAIUSDC2-A", 10 * MILLION, 10 * MILLION, 8 hours);

// ----------------------------- Rates updates -----------------------------

// https://vote.makerdao.com/polling/QmNqCZGa?network=mainnet

// Increase the ETH-A Stability Fee from 2.5% to 2.75%

DssExecLib.setIlkStabilityFee("ETH-A", TWO_SEVEN_FIVE_PCT_RATE, true);

// Increase the ETH-B Stability Fee from 6.0% to 6.5%

DssExecLib.setIlkStabilityFee("ETH-B", SIX_FIVE_PCT_RATE, true);

// Increase the LINK-A Stability Fee from 1.5% to 2.5%

DssExecLib.setIlkStabilityFee("LINK-A", TWO_FIVE_PCT_RATE, true);

// Increase the MANA-A Stability Fee from 3.0% to 6.0%

DssExecLib.setIlkStabilityFee("MANA-A", SIX_PCT_RATE, true);

// Increase the UNI-A Stability Fee from 1.0% to 3.0%

DssExecLib.setIlkStabilityFee("UNI-A", THREE_PCT_RATE, true);

// Increase the GUSD-A Stability Fee from 0.0% to 1.0%

DssExecLib.setIlkStabilityFee("GUSD-A", ONE_PCT_RATE, true);

// Increase the UNIV2DAIETH-A Stability Fee from 1.5% to 2.0%

DssExecLib.setIlkStabilityFee("UNIV2DAIETH-A", TWO_PCT_RATE, true);

// Increase the UNIV2WBTCETH-A Stability Fee from 2.5% to 3.0%

DssExecLib.setIlkStabilityFee("UNIV2WBTCETH-A", THREE_PCT_RATE, true);

// Increase the UNIV2USDCETH-A Stability Fee from 2.0% to 2.5%

DssExecLib.setIlkStabilityFee("UNIV2USDCETH-A", TWO_FIVE_PCT_RATE, true);

// Increase the UNIV2UNIETH-A Stability Fee from 2.0% to 4.0%

DssExecLib.setIlkStabilityFee("UNIV2UNIETH-A", FOUR_PCT_RATE, true);

// Decrease the GUNIV3DAIUSDC1-A Stability Fee from 0.5% to 0.1%

DssExecLib.setIlkStabilityFee("GUNIV3DAIUSDC1-A", ZERO_ONE_PCT_RATE, true);

// ----------------------------- Debt Ceiling updates -----------------------------

// Increase the WBTC-A Maximum Debt Ceiling (line) from 1.5 billion DAI to 2 billion DAI

// Increase the WBTC-A Target Available Debt (gap) from 60 million DAI to 80 million DAI

// https://vote.makerdao.com/polling/QmNqCZGa?network=mainnet

DssExecLib.setIlkAutoLineParameters("WBTC-A", 2 * BILLION, 80 * MILLION, 6 hours);

// Increase the Dust Para

Saved diffs

Original text

Open file

// hevm: flattened sources of src/DssSpell.sol
// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity =0.6.12 >=0.6.12 <0.7.0;
pragma experimental ABIEncoderV2;

////// lib/dss-exec-lib/src/CollateralOpts.sol
/* pragma solidity ^0.6.12; */

struct CollateralOpts {
    bytes32 ilk;
    address gem;
    address join;
    address clip;
    address calc;
    address pip;
    bool    isLiquidatable;
    bool    isOSM;
    bool    whitelistOSM;
    uint256 ilkDebtCeiling;
    uint256 minVaultAmount;
    uint256 maxLiquidationAmount;
    uint256 liquidationPenalty;
    uint256 ilkStabilityFee;
    uint256 startingPriceFactor;
    uint256 breakerTolerance;
    uint256 auctionDuration;
    uint256 permittedDrop;
    uint256 liquidationRatio;
    uint256 kprFlatReward;
    uint256 kprPctReward;
}

////// lib/dss-exec-lib/src/DssExecLib.sol
//
// DssExecLib.sol -- MakerDAO Executive Spellcrafting Library
//
// Copyright (C) 2020 Maker Ecosystem Growth Holdings, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
/* pragma solidity ^0.6.12; */
/* pragma experimental ABIEncoderV2; */

/* import { CollateralOpts } from "./CollateralOpts.sol"; */

interface Initializable {
    function init(bytes32) external;
}

interface Authorizable {
    function rely(address) external;
    function deny(address) external;
}

interface Fileable {
    function file(bytes32, address) external;
    function file(bytes32, uint256) external;
    function file(bytes32, bytes32, uint256) external;
    function file(bytes32, bytes32, address) external;
}

interface Drippable {
    function drip() external returns (uint256);
    function drip(bytes32) external returns (uint256);
}

interface Pricing {
    function poke(bytes32) external;
}

interface ERC20 {
    function decimals() external returns (uint8);
}

interface DssVat {
    function hope(address) external;
    function nope(address) external;
    function ilks(bytes32) external returns (uint256 Art, uint256 rate, uint256 spot, uint256 line, uint256 dust);
    function Line() external view returns (uint256);
    function suck(address, address, uint) external;
}

interface ClipLike {
    function vat() external returns (address);
    function dog() external returns (address);
    function spotter() external view returns (address);
    function calc() external view returns (address);
    function ilk() external returns (bytes32);
}

interface DogLike {
    function ilks(bytes32) external returns (address clip, uint256 chop, uint256 hole, uint256 dirt);
}

interface JoinLike {
    function vat() external returns (address);
    function ilk() external returns (bytes32);
    function gem() external returns (address);
    function dec() external returns (uint256);
    function join(address, uint) external;
    function exit(address, uint) external;
}

// Includes Median and OSM functions
interface OracleLike_2 {
    function src() external view returns (address);
    function lift(address[] calldata) external;
    function drop(address[] calldata) external;
    function setBar(uint256) external;
    function kiss(address) external;
    function diss(address) external;
    function kiss(address[] calldata) external;
    function diss(address[] calldata) external;
    function orb0() external view returns (address);
    function orb1() external view returns (address);
}

interface MomLike {
    function setOsm(bytes32, address) external;
    function setPriceTolerance(address, uint256) external;
}

interface RegistryLike {
    function add(address) external;
    function xlip(bytes32) external view returns (address);
}

// https://github.com/makerdao/dss-chain-log
interface ChainlogLike {
    function setVersion(string calldata) external;
    function setIPFS(string calldata) external;
    function setSha256sum(string calldata) external;
    function getAddress(bytes32) external view returns (address);
    function setAddress(bytes32, address) external;
    function removeAddress(bytes32) external;
}

interface IAMLike {
    function ilks(bytes32) external view returns (uint256,uint256,uint48,uint48,uint48);
    function setIlk(bytes32,uint256,uint256,uint256) external;
    function remIlk(bytes32) external;
    function exec(bytes32) external returns (uint256);
}

interface LerpFactoryLike {
    function newLerp(bytes32 name_, address target_, bytes32 what_, uint256 startTime_, uint256 start_, uint256 end_, uint256 duration_) external returns (address);
    function newIlkLerp(bytes32 name_, address target_, bytes32 ilk_, bytes32 what_, uint256 startTime_, uint256 start_, uint256 end_, uint256 duration_) external returns (address);
}

interface LerpLike {
    function tick() external returns (uint256);
}

library DssExecLib {

/*****************/
    /*** Constants ***/
    /*****************/
    address constant public LOG = 0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F;

uint256 constant internal WAD      = 10 ** 18;
    uint256 constant internal RAY      = 10 ** 27;
    uint256 constant internal RAD      = 10 ** 45;
    uint256 constant internal THOUSAND = 10 ** 3;
    uint256 constant internal MILLION  = 10 ** 6;

uint256 constant internal BPS_ONE_PCT             = 100;
    uint256 constant internal BPS_ONE_HUNDRED_PCT     = 100 * BPS_ONE_PCT;
    uint256 constant internal RATES_ONE_HUNDRED_PCT   = 1000000021979553151239153027;

/**********************/
    /*** Math Functions ***/
    /**********************/
    function add(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require((z = x + y) >= x);
    }
    function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require((z = x - y) <= x);
    }
    function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require(y == 0 || (z = x * y) / y == x);
    }
    function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, y), WAD / 2) / WAD;
    }
    function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, y), RAY / 2) / RAY;
    }
    function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, WAD), y / 2) / y;
    }
    function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, RAY), y / 2) / y;
    }

/****************************/
    /*** Core Address Helpers ***/
    /****************************/
    function dai()        public view returns (address) { return getChangelogAddress("MCD_DAI"); }
    function mkr()        public view returns (address) { return getChangelogAddress("MCD_GOV"); }
    function vat()        public view returns (address) { return getChangelogAddress("MCD_VAT"); }
    function cat()        public view returns (address) { return getChangelogAddress("MCD_CAT"); }
    function dog()        public view returns (address) { return getChangelogAddress("MCD_DOG"); }
    function jug()        public view returns (address) { return getChangelogAddress("MCD_JUG"); }
    function pot()        public view returns (address) { return getChangelogAddress("MCD_POT"); }
    function vow()        public view returns (address) { return getChangelogAddress("MCD_VOW"); }
    function end()        public view returns (address) { return getChangelogAddress("MCD_END"); }
    function esm()        public view returns (address) { return getChangelogAddress("MCD_ESM"); }
    function reg()        public view returns (address) { return getChangelogAddress("ILK_REGISTRY"); }
    function spotter()    public view returns (address) { return getChangelogAddress("MCD_SPOT"); }
    function flap()       public view returns (address) { return getChangelogAddress("MCD_FLAP"); }
    function flop()       public view returns (address) { return getChangelogAddress("MCD_FLOP"); }
    function osmMom()     public view returns (address) { return getChangelogAddress("OSM_MOM"); }
    function govGuard()   public view returns (address) { return getChangelogAddress("GOV_GUARD"); }
    function flipperMom() public view returns (address) { return getChangelogAddress("FLIPPER_MOM"); }
    function clipperMom() public view returns (address) { return getChangelogAddress("CLIPPER_MOM"); }
    function pauseProxy() public view returns (address) { return getChangelogAddress("MCD_PAUSE_PROXY"); }
    function autoLine()   public view returns (address) { return getChangelogAddress("MCD_IAM_AUTO_LINE"); }
    function daiJoin()    public view returns (address) { return getChangelogAddress("MCD_JOIN_DAI"); }
    function lerpFab()    public view returns (address) { return getChangelogAddress("LERP_FAB"); }

function clip(bytes32 _ilk) public view returns (address _clip) {
        _clip = RegistryLike(reg()).xlip(_ilk);
    }

function flip(bytes32 _ilk) public view returns (address _flip) {
        _flip = RegistryLike(reg()).xlip(_ilk);
    }

function calc(bytes32 _ilk) public view returns (address _calc) {
        _calc = ClipLike(clip(_ilk)).calc();
    }

function getChangelogAddress(bytes32 _key) public view returns (address) {
        return ChainlogLike(LOG).getAddress(_key);
    }

/****************************/
    /*** Changelog Management ***/
    /****************************/
    /**
        @dev Set an address in the MCD on-chain changelog.
        @param _key Access key for the address (e.g. "MCD_VAT")
        @param _val The address associated with the _key
    */
    function setChangelogAddress(bytes32 _key, address _val) public {
        ChainlogLike(LOG).setAddress(_key, _val);
    }

/**
        @dev Set version in the MCD on-chain changelog.
        @param _version Changelog version (e.g. "1.1.2")
    */
    function setChangelogVersion(string memory _version) public {
        ChainlogLike(LOG).setVersion(_version);
    }
    /**
        @dev Set IPFS hash of IPFS changelog in MCD on-chain changelog.
        @param _ipfsHash IPFS hash (e.g. "QmefQMseb3AiTapiAKKexdKHig8wroKuZbmLtPLv4u2YwW")
    */
    function setChangelogIPFS(string memory _ipfsHash) public {
        ChainlogLike(LOG).setIPFS(_ipfsHash);
    }
    /**
        @dev Set SHA256 hash in MCD on-chain changelog.
        @param _SHA256Sum SHA256 hash (e.g. "e42dc9d043a57705f3f097099e6b2de4230bca9a020c797508da079f9079e35b")
    */
    function setChangelogSHA256(string memory _SHA256Sum) public {
        ChainlogLike(LOG).setSha256sum(_SHA256Sum);
    }

/**********************/
    /*** Authorizations ***/
    /**********************/
    /**
        @dev Give an address authorization to perform auth actions on the contract.
        @param _base   The address of the contract where the authorization will be set
        @param _ward   Address to be authorized
    */
    function authorize(address _base, address _ward) public {
        Authorizable(_base).rely(_ward);
    }
    /**
        @dev Revoke contract authorization from an address.
        @param _base   The address of the contract where the authorization will be revoked
        @param _ward   Address to be deauthorized
    */
    function deauthorize(address _base, address _ward) public {
        Authorizable(_base).deny(_ward);
    }
    /**
        @dev Delegate vat authority to the specified address.
        @param _usr Address to be authorized
    */
    function delegateVat(address _usr) public {
        DssVat(vat()).hope(_usr);
    }
    /**
        @dev Revoke vat authority to the specified address.
        @param _usr Address to be deauthorized
    */
    function undelegateVat(address _usr) public {
        DssVat(vat()).nope(_usr);
    }

/******************************/
    /*** OfficeHours Management ***/
    /******************************/

/**
        @dev Returns true if a time is within office hours range
        @param _ts           The timestamp to check, usually block.timestamp
        @param _officeHours  true if office hours is enabled.
        @return              true if time is in castable range
    */
    function canCast(uint40 _ts, bool _officeHours) public pure returns (bool) {
        if (_officeHours) {
            uint256 day = (_ts / 1 days + 3) % 7;
            if (day >= 5)                 { return false; }  // Can only be cast on a weekday
            uint256 hour = _ts / 1 hours % 24;
            if (hour < 14 || hour >= 21)  { return false; }  // Outside office hours
        }
        return true;
    }

/**
        @dev Calculate the next available cast time in epoch seconds
        @param _eta          The scheduled time of the spell plus the pause delay
        @param _ts           The current timestamp, usually block.timestamp
        @param _officeHours  true if office hours is enabled.
        @return castTime     The next available cast timestamp
    */
    function nextCastTime(uint40 _eta, uint40 _ts, bool _officeHours) public pure returns (uint256 castTime) {
        require(_eta != 0);  // "DssExecLib/invalid eta"
        require(_ts  != 0);  // "DssExecLib/invalid ts"
        castTime = _ts > _eta ? _ts : _eta; // Any day at XX:YY

if (_officeHours) {
            uint256 day    = (castTime / 1 days + 3) % 7;
            uint256 hour   = castTime / 1 hours % 24;
            uint256 minute = castTime / 1 minutes % 60;
            uint256 second = castTime % 60;

if (day >= 5) {
                castTime += (6 - day) * 1 days;                 // Go to Sunday XX:YY
                castTime += (24 - hour + 14) * 1 hours;         // Go to 14:YY UTC Monday
                castTime -= minute * 1 minutes + second;        // Go to 14:00 UTC
            } else {
                if (hour >= 21) {
                    if (day == 4) castTime += 2 days;           // If Friday, fast forward to Sunday XX:YY
                    castTime += (24 - hour + 14) * 1 hours;     // Go to 14:YY UTC next day
                    castTime -= minute * 1 minutes + second;    // Go to 14:00 UTC
                } else if (hour < 14) {
                    castTime += (14 - hour) * 1 hours;          // Go to 14:YY UTC same day
                    castTime -= minute * 1 minutes + second;    // Go to 14:00 UTC
                }
            }
        }
    }

/**************************/
    /*** Accumulating Rates ***/
    /**************************/
    /**
        @dev Update rate accumulation for the Dai Savings Rate (DSR).
    */
    function accumulateDSR() public {
        Drippable(pot()).drip();
    }
    /**
        @dev Update rate accumulation for the stability fees of a given collateral type.
        @param _ilk   Collateral type
    */
    function accumulateCollateralStabilityFees(bytes32 _ilk) public {
        Drippable(jug()).drip(_ilk);
    }

/*********************/
    /*** Price Updates ***/
    /*********************/
    /**
        @dev Update price of a given collateral type.
        @param _ilk   Collateral type
    */
    function updateCollateralPrice(bytes32 _ilk) public {
        Pricing(spotter()).poke(_ilk);
    }

/****************************/
    /*** System Configuration ***/
    /****************************/
    /**
        @dev Set a contract in another contract, defining the relationship (ex. set a new Calc contract in Clip)
        @param _base   The address of the contract where the new contract address will be filed
        @param _what   Name of contract to file
        @param _addr   Address of contract to file
    */
    function setContract(address _base, bytes32 _what, address _addr) public {
        Fileable(_base).file(_what, _addr);
    }
    /**
        @dev Set a contract in another contract, defining the relationship (ex. set a new Calc contract in a Clip)
        @param _base   The address of the contract where the new contract address will be filed
        @param _ilk    Collateral type
        @param _what   Name of contract to file
        @param _addr   Address of contract to file
    */
    function setContract(address _base, bytes32 _ilk, bytes32 _what, address _addr) public {
        Fileable(_base).file(_ilk, _what, _addr);
    }
    /**
        @dev Set a value in a contract, via a governance authorized File pattern.
        @param _base   The address of the contract where the new contract address will be filed
        @param _what   Name of tag for the value (e.x. "Line")
        @param _amt    The value to set or update
    */
    function setValue(address _base, bytes32 _what, uint256 _amt) public {
        Fileable(_base).file(_what, _amt);
    }
    /**
        @dev Set an ilk-specific value in a contract, via a governance authorized File pattern.
        @param _base   The address of the contract where the new value will be filed
        @param _ilk    Collateral type
        @param _what   Name of tag for the value (e.x. "Line")
        @param _amt    The value to set or update
    */
    function setValue(address _base, bytes32 _ilk, bytes32 _what, uint256 _amt) public {
        Fileable(_base).file(_ilk, _what, _amt);
    }

/******************************/
    /*** System Risk Parameters ***/
    /******************************/
    // function setGlobalDebtCeiling(uint256 _amount) public { setGlobalDebtCeiling(vat(), _amount); }
    /**
        @dev Set the global debt ceiling. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setGlobalDebtCeiling(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-global-Line-precision"
        setValue(vat(), "Line", _amount * RAD);
    }
    /**
        @dev Increase the global debt ceiling by a specific amount. Amount will be converted to the correct internal precision.
        @param _amount The amount to add in DAI (ex. 10m DAI amount == 10000000)
    */
    function increaseGlobalDebtCeiling(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-Line-increase-precision"
        address _vat = vat();
        setValue(_vat, "Line", add(DssVat(_vat).Line(), _amount * RAD));
    }
    /**
        @dev Decrease the global debt ceiling by a specific amount. Amount will be converted to the correct internal precision.
        @param _amount The amount to reduce in DAI (ex. 10m DAI amount == 10000000)
    */
    function decreaseGlobalDebtCeiling(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-Line-decrease-precision"
        address _vat = vat();
        setValue(_vat, "Line", sub(DssVat(_vat).Line(), _amount * RAD));
    }
    /**
        @dev Set the Dai Savings Rate. See: docs/rates.txt
        @param _rate   The accumulated rate (ex. 4% => 1000000001243680656318820312)
        @param _doDrip `true` to accumulate interest owed
    */
    function setDSR(uint256 _rate, bool _doDrip) public {
        require((_rate >= RAY) && (_rate <= RATES_ONE_HUNDRED_PCT));  // "LibDssExec/dsr-out-of-bounds"
        if (_doDrip) Drippable(pot()).drip();
        setValue(pot(), "dsr", _rate);
    }
    /**
        @dev Set the DAI amount for system surplus auctions. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setSurplusAuctionAmount(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-vow-bump-precision"
        setValue(vow(), "bump", _amount * RAD);
    }
    /**
        @dev Set the DAI amount for system surplus buffer, must be exceeded before surplus auctions start. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setSurplusBuffer(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-vow-hump-precision"
        setValue(vow(), "hump", _amount * RAD);
    }
    /**
        @dev Set minimum bid increase for surplus auctions. Amount will be converted to the correct internal precision.
        @dev Equation used for conversion is (1 + pct / 10,000) * WAD
        @param _pct_bps The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)
    */
    function setMinSurplusAuctionBidIncrease(uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT);  // "LibDssExec/incorrect-flap-beg-precision"
        setValue(flap(), "beg", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));
    }
    /**
        @dev Set bid duration for surplus auctions.
        @param _duration Amount of time for bids. (in seconds)
    */
    function setSurplusAuctionBidDuration(uint256 _duration) public {
        setValue(flap(), "ttl", _duration);
    }
    /**
        @dev Set total auction duration for surplus auctions.
        @param _duration Amount of time for auctions. (in seconds)
    */
    function setSurplusAuctionDuration(uint256 _duration) public {
        setValue(flap(), "tau", _duration);
    }
    /**
        @dev Set the number of seconds that pass before system debt is auctioned for MKR tokens.
        @param _duration Duration in seconds
    */
    function setDebtAuctionDelay(uint256 _duration) public {
        setValue(vow(), "wait", _duration);
    }
    /**
        @dev Set the DAI amount for system debt to be covered by each debt auction. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setDebtAuctionDAIAmount(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-vow-sump-precision"
        setValue(vow(), "sump", _amount * RAD);
    }
    /**
        @dev Set the starting MKR amount to be auctioned off to cover system debt in debt auctions. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in MKR (ex. 250 MKR amount == 250)
    */
    function setDebtAuctionMKRAmount(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-vow-dump-precision"
        setValue(vow(), "dump", _amount * WAD);
    }
    /**
        @dev Set minimum bid increase for debt auctions. Amount will be converted to the correct internal precision.
        @dev Equation used for conversion is (1 + pct / 10,000) * WAD
        @param _pct_bps    The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)
    */
    function setMinDebtAuctionBidIncrease(uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT);  // "LibDssExec/incorrect-flap-beg-precision"
        setValue(flop(), "beg", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));
    }
    /**
        @dev Set bid duration for debt auctions.
        @param _duration Amount of time for bids.
    */
    function setDebtAuctionBidDuration(uint256 _duration) public {
        setValue(flop(), "ttl", _duration);
    }
    /**
        @dev Set total auction duration for debt auctions.
        @param _duration Amount of time for auctions.
    */
    function setDebtAuctionDuration(uint256 _duration) public {
        setValue(flop(), "tau", _duration);
    }
    /**
        @dev Set the rate of increasing amount of MKR out for auction during debt auctions. Amount will be converted to the correct internal precision.
        @dev MKR amount is increased by this rate every "tick" (if auction duration has passed and no one has bid on the MKR)
        @dev Equation used for conversion is (1 + pct / 10,000) * WAD
        @param _pct_bps    The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)
    */
    function setDebtAuctionMKRIncreaseRate(uint256 _pct_bps) public {
        setValue(flop(), "pad", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));
    }
    /**
        @dev Set the maximum total DAI amount that can be out for liquidation in the system at any point. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in DAI (ex. 250,000 DAI amount == 250000)
    */
    function setMaxTotalDAILiquidationAmount(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-dog-Hole-precision"
        setValue(dog(), "Hole", _amount * RAD);
    }
    /**
        @dev (LIQ 1.2) Set the maximum total DAI amount that can be out for liquidation in the system at any point. Amount will be converted to the correct internal precision.
        @param _amount The amount to set in DAI (ex. 250,000 DAI amount == 250000)
    */
    function setMaxTotalDAILiquidationAmountLEGACY(uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-cat-box-amount"
        setValue(cat(), "box", _amount * RAD);
    }
    /**
        @dev Set the duration of time that has to pass during emergency shutdown before collateral can start being claimed by DAI holders.
        @param _duration Time in seconds to set for ES processing time
    */
    function setEmergencyShutdownProcessingTime(uint256 _duration) public {
        setValue(end(), "wait", _duration);
    }
    /**
        @dev Set the global stability fee (is not typically used, currently is 0).
            Many of the settings that change weekly rely on the rate accumulator
            described at https://docs.makerdao.com/smart-contract-modules/rates-module
            To check this yourself, use the following rate calculation (example 8%):

$ bc -l <<< 'scale=27; e( l(1.08)/(60 * 60 * 24 * 365) )'

A table of rates can also be found at:
            https://ipfs.io/ipfs/QmefQMseb3AiTapiAKKexdKHig8wroKuZbmLtPLv4u2YwW
        @param _rate   The accumulated rate (ex. 4% => 1000000001243680656318820312)
    */
    function setGlobalStabilityFee(uint256 _rate) public {
        require((_rate >= RAY) && (_rate <= RATES_ONE_HUNDRED_PCT));  // "LibDssExec/global-stability-fee-out-of-bounds"
        setValue(jug(), "base", _rate);
    }
    /**
        @dev Set the value of DAI in the reference asset (e.g. $1 per DAI). Value will be converted to the correct internal precision.
        @dev Equation used for conversion is value * RAY / 1000
        @param _value The value to set as integer (x1000) (ex. $1.025 == 1025)
    */
    function setDAIReferenceValue(uint256 _value) public {
        require(_value < WAD);  // "LibDssExec/incorrect-par-precision"
        setValue(spotter(), "par", rdiv(_value, 1000));
    }

/*****************************/
    /*** Collateral Management ***/
    /*****************************/
    /**
        @dev Set a collateral debt ceiling. Amount will be converted to the correct internal precision.
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setIlkDebtCeiling(bytes32 _ilk, uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-ilk-line-precision"
        setValue(vat(), _ilk, "line", _amount * RAD);
    }
    /**
        @dev Increase a collateral debt ceiling. Amount will be converted to the correct internal precision.
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The amount to increase in DAI (ex. 10m DAI amount == 10000000)
        @param _global If true, increases the global debt ceiling by _amount
    */
    function increaseIlkDebtCeiling(bytes32 _ilk, uint256 _amount, bool _global) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-ilk-line-precision"
        address _vat = vat();
        (,,,uint256 line_,) = DssVat(_vat).ilks(_ilk);
        setValue(_vat, _ilk, "line", add(line_, _amount * RAD));
        if (_global) { increaseGlobalDebtCeiling(_amount); }
    }
    /**
        @dev Decrease a collateral debt ceiling. Amount will be converted to the correct internal precision.
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The amount to decrease in DAI (ex. 10m DAI amount == 10000000)
        @param _global If true, decreases the global debt ceiling by _amount
    */
    function decreaseIlkDebtCeiling(bytes32 _ilk, uint256 _amount, bool _global) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-ilk-line-precision"
        address _vat = vat();
        (,,,uint256 line_,) = DssVat(_vat).ilks(_ilk);
        setValue(_vat, _ilk, "line", sub(line_, _amount * RAD));
        if (_global) { decreaseGlobalDebtCeiling(_amount); }
    }
    /**
        @dev Set the parameters for an ilk in the "MCD_IAM_AUTO_LINE" auto-line
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The Maximum value (ex. 100m DAI amount == 100000000)
        @param _gap    The amount of Dai per step (ex. 5m Dai == 5000000)
        @param _ttl    The amount of time (in seconds)
    */
    function setIlkAutoLineParameters(bytes32 _ilk, uint256 _amount, uint256 _gap, uint256 _ttl) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-auto-line-amount-precision"
        require(_gap < WAD);  // "LibDssExec/incorrect-auto-line-gap-precision"
        IAMLike(autoLine()).setIlk(_ilk, _amount * RAD, _gap * RAD, _ttl);
    }
    /**
        @dev Set the debt ceiling for an ilk in the "MCD_IAM_AUTO_LINE" auto-line without updating the time values
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The Maximum value (ex. 100m DAI amount == 100000000)
    */
    function setIlkAutoLineDebtCeiling(bytes32 _ilk, uint256 _amount) public {
        address _autoLine = autoLine();
        (, uint256 gap, uint48 ttl,,) = IAMLike(_autoLine).ilks(_ilk);
        require(gap != 0 && ttl != 0);  // "LibDssExec/auto-line-not-configured"
        IAMLike(_autoLine).setIlk(_ilk, _amount * RAD, uint256(gap), uint256(ttl));
    }
    /**
        @dev Remove an ilk in the "MCD_IAM_AUTO_LINE" auto-line
        @param _ilk    The ilk to remove (ex. bytes32("ETH-A"))
    */
    function removeIlkFromAutoLine(bytes32 _ilk) public {
        IAMLike(autoLine()).remIlk(_ilk);
    }
    /**
        @dev Set a collateral minimum vault amount. Amount will be converted to the correct internal precision.
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setIlkMinVaultAmount(bytes32 _ilk, uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-ilk-dust-precision"
        (,, uint256 _hole,) = DogLike(dog()).ilks(_ilk);
        require(_amount <= _hole / RAD);  // Ensure ilk.hole >= dust
        setValue(vat(), _ilk, "dust", _amount * RAD);
        (bool ok,) = clip(_ilk).call(abi.encodeWithSignature("upchost()")); ok;
    }
    /**
        @dev Set a collateral liquidation penalty. Amount will be converted to the correct internal precision.
        @dev Equation used for conversion is (1 + pct / 10,000) * WAD
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _pct_bps    The pct, in basis points, to set in integer form (x100). (ex. 10.25% = 10.25 * 100 = 1025)
    */
    function setIlkLiquidationPenalty(bytes32 _ilk, uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT);  // "LibDssExec/incorrect-ilk-chop-precision"
        setValue(dog(), _ilk, "chop", add(WAD, wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT)));
        (bool ok,) = clip(_ilk).call(abi.encodeWithSignature("upchost()")); ok;
    }
    /**
        @dev Set max DAI amount for liquidation per vault for collateral. Amount will be converted to the correct internal precision.
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The amount to set in DAI (ex. 10m DAI amount == 10000000)
    */
    function setIlkMaxLiquidationAmount(bytes32 _ilk, uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-ilk-hole-precision"
        setValue(dog(), _ilk, "hole", _amount * RAD);
    }
    /**
        @dev Set a collateral liquidation ratio. Amount will be converted to the correct internal precision.
        @dev Equation used for conversion is pct * RAY / 10,000
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _pct_bps    The pct, in basis points, to set in integer form (x100). (ex. 150% = 150 * 100 = 15000)
    */
    function setIlkLiquidationRatio(bytes32 _ilk, uint256 _pct_bps) public {
        require(_pct_bps < 10 * BPS_ONE_HUNDRED_PCT); // "LibDssExec/incorrect-ilk-mat-precision" // Fails if pct >= 1000%
        require(_pct_bps >= BPS_ONE_HUNDRED_PCT); // the liquidation ratio has to be bigger or equal to 100%
        setValue(spotter(), _ilk, "mat", rdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
    }
    /**
        @dev Set an auction starting multiplier. Amount will be converted to the correct internal precision.
        @dev Equation used for conversion is pct * RAY / 10,000
        @param _ilk      The ilk to update (ex. bytes32("ETH-A"))
        @param _pct_bps  The pct, in basis points, to set in integer form (x100). (ex. 1.3x starting multiplier = 130% = 13000)
    */
    function setStartingPriceMultiplicativeFactor(bytes32 _ilk, uint256 _pct_bps) public {
        require(_pct_bps < 10 * BPS_ONE_HUNDRED_PCT); // "LibDssExec/incorrect-ilk-mat-precision" // Fails if gt 10x
        require(_pct_bps >= BPS_ONE_HUNDRED_PCT); // fail if start price is less than OSM price
        setValue(clip(_ilk), "buf", rdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
    }

/**
        @dev Set the amout of time before an auction resets.
        @param _ilk      The ilk to update (ex. bytes32("ETH-A"))
        @param _duration Amount of time before auction resets (in seconds).
    */
    function setAuctionTimeBeforeReset(bytes32 _ilk, uint256 _duration) public {
        setValue(clip(_ilk), "tail", _duration);
    }

/**
        @dev Percentage drop permitted before auction reset
        @param _ilk     The ilk to update (ex. bytes32("ETH-A"))
        @param _pct_bps The pct, in basis points, of drop to permit (x100).
    */
    function setAuctionPermittedDrop(bytes32 _ilk, uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT); // "LibDssExec/incorrect-clip-cusp-value"
        setValue(clip(_ilk), "cusp", rdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
    }

/**
        @dev Percentage of tab to suck from vow to incentivize keepers. Amount will be converted to the correct internal precision.
        @param _ilk     The ilk to update (ex. bytes32("ETH-A"))
        @param _pct_bps The pct, in basis points, of the tab to suck. (0.01% == 1)
    */
    function setKeeperIncentivePercent(bytes32 _ilk, uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT); // "LibDssExec/incorrect-clip-chip-precision"
        setValue(clip(_ilk), "chip", wdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
    }

/**
        @dev Set max DAI amount for flat rate keeper incentive. Amount will be converted to the correct internal precision.
        @param _ilk    The ilk to update (ex. bytes32("ETH-A"))
        @param _amount The amount to set in DAI (ex. 1000 DAI amount == 1000)
    */
    function setKeeperIncentiveFlatRate(bytes32 _ilk, uint256 _amount) public {
        require(_amount < WAD); // "LibDssExec/incorrect-clip-tip-precision"
        setValue(clip(_ilk), "tip", _amount * RAD);
    }

/**
        @dev Sets the circuit breaker price tolerance in the clipper mom.
            This is somewhat counter-intuitive,
             to accept a 25% price drop, use a value of 75%
        @param _clip    The clipper to set the tolerance for
        @param _pct_bps The pct, in basis points, to set in integer form (x100). (ex. 5% = 5 * 100 = 500)
    */
    function setLiquidationBreakerPriceTolerance(address _clip, uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT);  // "LibDssExec/incorrect-clippermom-price-tolerance"
        MomLike(clipperMom()).setPriceTolerance(_clip, rdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
    }

/**
        @dev Set the stability fee for a given ilk.
            Many of the settings that change weekly rely on the rate accumulator
            described at https://docs.makerdao.com/smart-contract-modules/rates-module
            To check this yourself, use the following rate calculation (example 8%):

$ bc -l <<< 'scale=27; e( l(1.08)/(60 * 60 * 24 * 365) )'

A table of rates can also be found at:
            https://ipfs.io/ipfs/QmefQMseb3AiTapiAKKexdKHig8wroKuZbmLtPLv4u2YwW

@param _ilk    The ilk to update (ex. bytes32("ETH-A") )
        @param _rate   The accumulated rate (ex. 4% => 1000000001243680656318820312)
        @param _doDrip `true` to accumulate stability fees for the collateral
    */
    function setIlkStabilityFee(bytes32 _ilk, uint256 _rate, bool _doDrip) public {
        require((_rate >= RAY) && (_rate <= RATES_ONE_HUNDRED_PCT));  // "LibDssExec/ilk-stability-fee-out-of-bounds"
        address _jug = jug();
        if (_doDrip) Drippable(_jug).drip(_ilk);

setValue(_jug, _ilk, "duty", _rate);
    }

/*************************/
    /*** Abacus Management ***/
    /*************************/

/**
        @dev Set the number of seconds from the start when the auction reaches zero price.
        @dev Abacus:LinearDecrease only.
        @param _calc     The address of the LinearDecrease pricing contract
        @param _duration Amount of time for auctions.
    */
    function setLinearDecrease(address _calc, uint256 _duration) public {
        setValue(_calc, "tau", _duration);
    }

/**
        @dev Set the number of seconds for each price step.
        @dev Abacus:StairstepExponentialDecrease only.
        @param _calc     The address of the StairstepExponentialDecrease pricing contract
        @param _duration Length of time between price drops [seconds]
        @param _pct_bps Per-step multiplicative factor in basis points. (ex. 99% == 9900)
    */
    function setStairstepExponentialDecrease(address _calc, uint256 _duration, uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT); // DssExecLib/cut-too-high
        setValue(_calc, "cut", rdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
        setValue(_calc, "step", _duration);
    }
    /**
        @dev Set the number of seconds for each price step. (99% cut = 1% price drop per step)
             Amounts will be converted to the correct internal precision.
        @dev Abacus:ExponentialDecrease only
        @param _calc     The address of the ExponentialDecrease pricing contract
        @param _pct_bps Per-step multiplicative factor in basis points. (ex. 99% == 9900)
    */
    function setExponentialDecrease(address _calc, uint256 _pct_bps) public {
        require(_pct_bps < BPS_ONE_HUNDRED_PCT); // DssExecLib/cut-too-high
        setValue(_calc, "cut", rdiv(_pct_bps, BPS_ONE_HUNDRED_PCT));
    }

/*************************/
    /*** Oracle Management ***/
    /*************************/
    /**
        @dev Allows an oracle to read prices from its source feeds
        @param _oracle  An OSM or LP oracle contract
    */
    function whitelistOracleMedians(address _oracle) public {
        (bool ok, bytes memory data) = _oracle.call(abi.encodeWithSignature("orb0()"));
        if (ok) {
            // Token is an LP oracle
            address median0 = abi.decode(data, (address));
            addReaderToWhitelistCall(median0, _oracle);
            addReaderToWhitelistCall(OracleLike_2(_oracle).orb1(), _oracle);
        } else {
            // Standard OSM
            addReaderToWhitelistCall(OracleLike_2(_oracle).src(), _oracle);
        }
    }
    /**
        @dev Adds an address to the OSM or Median's reader whitelist, allowing the address to read prices.
        @param _oracle        Oracle Security Module (OSM) or Median core contract address
        @param _reader     Address to add to whitelist
    */
    function addReaderToWhitelist(address _oracle, address _reader) public {
        OracleLike_2(_oracle).kiss(_reader);
    }
    /**
        @dev Removes an address to the OSM or Median's reader whitelist, disallowing the address to read prices.
        @param _oracle     Oracle Security Module (OSM) or Median core contract address
        @param _reader     Address to remove from whitelist
    */
    function removeReaderFromWhitelist(address _oracle, address _reader) public {
        OracleLike_2(_oracle).diss(_reader);
    }
    /**
        @dev Adds an address to the OSM or Median's reader whitelist, allowing the address to read prices.
        @param _oracle  OSM or Median core contract address
        @param _reader  Address to add to whitelist
    */
    function addReaderToWhitelistCall(address _oracle, address _reader) public {
        (bool ok,) = _oracle.call(abi.encodeWithSignature("kiss(address)", _reader)); ok;
    }
    /**
        @dev Removes an address to the OSM or Median's reader whitelist, disallowing the address to read prices.
        @param _oracle  Oracle Security Module (OSM) or Median core contract address
        @param _reader  Address to remove from whitelist
    */
    function removeReaderFromWhitelistCall(address _oracle, address _reader) public {
        (bool ok,) = _oracle.call(abi.encodeWithSignature("diss(address)", _reader)); ok;
    }
    /**
        @dev Sets the minimum number of valid messages from whitelisted oracle feeds needed to update median price.
        @param _median     Median core contract address
        @param _minQuorum  Minimum number of valid messages from whitelisted oracle feeds needed to update median price (NOTE: MUST BE ODD NUMBER)
    */
    function setMedianWritersQuorum(address _median, uint256 _minQuorum) public {
        OracleLike_2(_median).setBar(_minQuorum);
    }
    /**
        @dev Add OSM address to OSM mom, allowing it to be frozen by governance.
        @param _osm        Oracle Security Module (OSM) core contract address
        @param _ilk        Collateral type using OSM
    */
    function allowOSMFreeze(address _osm, bytes32 _ilk) public {
        MomLike(osmMom()).setOsm(_ilk, _osm);
    }

/*****************************/
    /*** Collateral Onboarding ***/
    /*****************************/

/**
        @dev Performs basic functions and sanity checks to add a new collateral type to the MCD system
        @param _ilk      Collateral type key code [Ex. "ETH-A"]
        @param _gem      Address of token contract
        @param _join     Address of join adapter
        @param _clip     Address of liquidation agent
        @param _calc     Address of the pricing function
        @param _pip      Address of price feed
    */
    function addCollateralBase(
        bytes32 _ilk,
        address _gem,
        address _join,
        address _clip,
        address _calc,
        address _pip
    ) public {
        // Sanity checks
        address _vat = vat();
        address _dog = dog();
        address _spotter = spotter();
        require(JoinLike(_join).vat() == _vat);     // "join-vat-not-match"
        require(JoinLike(_join).ilk() == _ilk);     // "join-ilk-not-match"
        require(JoinLike(_join).gem() == _gem);     // "join-gem-not-match"
        require(JoinLike(_join).dec() ==
                   ERC20(_gem).decimals());         // "join-dec-not-match"
        require(ClipLike(_clip).vat() == _vat);     // "clip-vat-not-match"
        require(ClipLike(_clip).dog() == _dog);     // "clip-dog-not-match"
        require(ClipLike(_clip).ilk() == _ilk);     // "clip-ilk-not-match"
        require(ClipLike(_clip).spotter() == _spotter);  // "clip-ilk-not-match"

// Set the token PIP in the Spotter
        setContract(spotter(), _ilk, "pip", _pip);

// Set the ilk Clipper in the Dog
        setContract(_dog, _ilk, "clip", _clip);
        // Set vow in the clip
        setContract(_clip, "vow", vow());
        // Set the pricing function for the Clipper
        setContract(_clip, "calc", _calc);

// Init ilk in Vat & Jug
        Initializable(_vat).init(_ilk);  // Vat
        Initializable(jug()).init(_ilk);  // Jug

// Allow ilk Join to modify Vat registry
        authorize(_vat, _join);
        // Allow ilk Join to suck dai for keepers
        authorize(_vat, _clip);
        // Allow the ilk Clipper to reduce the Dog hole on deal()
        authorize(_dog, _clip);
        // Allow Dog to kick auctions in ilk Clipper
        authorize(_clip, _dog);
        // Allow End to yank auctions in ilk Clipper
        authorize(_clip, end());
        // Authorize the ESM to execute in the clipper
        authorize(_clip, esm());

// Add new ilk to the IlkRegistry
        RegistryLike(reg()).add(_join);
    }

// Complete collateral onboarding logic.
    function addNewCollateral(CollateralOpts memory co) public {
        // Add the collateral to the system.
        addCollateralBase(co.ilk, co.gem, co.join, co.clip, co.calc, co.pip);
        address clipperMom_ = clipperMom();

if (!co.isLiquidatable) {
            // Disallow Dog to kick auctions in ilk Clipper
            setValue(co.clip, "stopped", 3);
        } else {
            // Grant ClipperMom access to the ilk Clipper
            authorize(co.clip, clipperMom_);
        }

if(co.isOSM) { // If pip == OSM
            // Allow OsmMom to access to the TOKEN OSM
            authorize(co.pip, osmMom());
            if (co.whitelistOSM) { // If median is src in OSM
                // Whitelist OSM to read the Median data (only necessary if it is the first time the token is being added to an ilk)
                whitelistOracleMedians(co.pip);
            }
            // Whitelist Spotter to read the OSM data (only necessary if it is the first time the token is being added to an ilk)
            addReaderToWhitelist(co.pip, spotter());
            // Whitelist Clipper on pip
            addReaderToWhitelist(co.pip, co.clip);
            // Allow the clippermom to access the feed
            addReaderToWhitelist(co.pip, clipperMom_);
            // Whitelist End to read the OSM data (only necessary if it is the first time the token is being added to an ilk)
            addReaderToWhitelist(co.pip, end());
            // Set TOKEN OSM in the OsmMom for new ilk
            allowOSMFreeze(co.pip, co.ilk);
        }
        // Increase the global debt ceiling by the ilk ceiling
        increaseGlobalDebtCeiling(co.ilkDebtCeiling);

// Set the ilk debt ceiling
        setIlkDebtCeiling(co.ilk, co.ilkDebtCeiling);

// Set the hole size
        setIlkMaxLiquidationAmount(co.ilk, co.maxLiquidationAmount);

// Set the ilk dust
        setIlkMinVaultAmount(co.ilk, co.minVaultAmount);

// Set the ilk liquidation penalty
        setIlkLiquidationPenalty(co.ilk, co.liquidationPenalty);

// Set the ilk stability fee
        setIlkStabilityFee(co.ilk, co.ilkStabilityFee, true);

// Set the auction starting price multiplier
        setStartingPriceMultiplicativeFactor(co.ilk, co.startingPriceFactor);

// Set the amount of time before an auction resets.
        setAuctionTimeBeforeReset(co.ilk, co.auctionDuration);

// Set the allowed auction drop percentage before reset
        setAuctionPermittedDrop(co.ilk, co.permittedDrop);

// Set the ilk min collateralization ratio
        setIlkLiquidationRatio(co.ilk, co.liquidationRatio);

// Set the price tolerance in the liquidation circuit breaker
        setLiquidationBreakerPriceTolerance(co.clip, co.breakerTolerance);

// Set a flat rate for the keeper reward
        setKeeperIncentiveFlatRate(co.ilk, co.kprFlatReward);

// Set the percentage of liquidation as keeper award
        setKeeperIncentivePercent(co.ilk, co.kprPctReward);

// Update ilk spot value in Vat
        updateCollateralPrice(co.ilk);
    }

/***************/
    /*** Payment ***/
    /***************/
    /**
        @dev Send a payment in ERC20 DAI from the surplus buffer.
        @param _target The target address to send the DAI to.
        @param _amount The amount to send in DAI (ex. 10m DAI amount == 10000000)
    */
    function sendPaymentFromSurplusBuffer(address _target, uint256 _amount) public {
        require(_amount < WAD);  // "LibDssExec/incorrect-ilk-line-precision"
        DssVat(vat()).suck(vow(), address(this), _amount * RAD);
        JoinLike(daiJoin()).exit(_target, _amount * WAD);
    }

/************/
    /*** Misc ***/
    /************/
    /**
        @dev Initiate linear interpolation on an administrative value over time.
        @param _name        The label for this lerp instance
        @param _target      The target contract
        @param _what        The target parameter to adjust
        @param _startTime   The time for this lerp
        @param _start       The start value for the target parameter
        @param _end         The end value for the target parameter
        @param _duration    The duration of the interpolation
    */
    function linearInterpolation(bytes32 _name, address _target, bytes32 _what, uint256 _startTime, uint256 _start, uint256 _end, uint256 _duration) public returns (address) {
        address lerp = LerpFactoryLike(lerpFab()).newLerp(_name, _target, _what, _startTime, _start, _end, _duration);
        Authorizable(_target).rely(lerp);
        LerpLike(lerp).tick();
        return lerp;
    }
    /**
        @dev Initiate linear interpolation on an administrative value over time.
        @param _name        The label for this lerp instance
        @param _target      The target contract
        @param _ilk         The ilk to target
        @param _what        The target parameter to adjust
        @param _startTime   The time for this lerp
        @param _start       The start value for the target parameter
        @param _end         The end value for the target parameter
        @param _duration    The duration of the interpolation
    */
    function linearInterpolation(bytes32 _name, address _target, bytes32 _ilk, bytes32 _what, uint256 _startTime, uint256 _start, uint256 _end, uint256 _duration) public returns (address) {
        address lerp = LerpFactoryLike(lerpFab()).newIlkLerp(_name, _target, _ilk, _what, _startTime, _start, _end, _duration);
        Authorizable(_target).rely(lerp);
        LerpLike(lerp).tick();
        return lerp;
    }
}

////// lib/dss-exec-lib/src/DssAction.sol
//
// DssAction.sol -- DSS Executive Spell Actions
//
// Copyright (C) 2020 Maker Ecosystem Growth Holdings, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity ^0.6.12; */

/* import { DssExecLib } from "./DssExecLib.sol"; */
/* import { CollateralOpts } from "./CollateralOpts.sol"; */

interface OracleLike_1 {
    function src() external view returns (address);
}

abstract contract DssAction {

using DssExecLib for *;

// Modifier used to limit execution time when office hours is enabled
    modifier limited {
        require(DssExecLib.canCast(uint40(block.timestamp), officeHours()), "Outside office hours");
        _;
    }

// Office Hours defaults to true by default.
    //   To disable office hours, override this function and
    //    return false in the inherited action.
    function officeHours() public virtual returns (bool) {
        return true;
    }

// DssExec calls execute. We limit this function subject to officeHours modifier.
    function execute() external limited {
        actions();
    }

// DssAction developer must override `actions()` and place all actions to be called inside.
    //   The DssExec function will call this subject to the officeHours limiter
    //   By keeping this function public we allow simulations of `execute()` on the actions outside of the cast time.
    function actions() public virtual;

// Provides a descriptive tag for bot consumption
    // This should be modified weekly to provide a summary of the actions
    // Hash: seth keccak -- "$(wget https://<executive-vote-canonical-post> -q -O - 2>/dev/null)"
    function description() external virtual view returns (string memory);

// Returns the next available cast time
    function nextCastTime(uint256 eta) external returns (uint256 castTime) {
        require(eta <= uint40(-1));
        castTime = DssExecLib.nextCastTime(uint40(eta), uint40(block.timestamp), officeHours());
    }
}

////// lib/dss-exec-lib/src/DssExec.sol
//
// DssExec.sol -- MakerDAO Executive Spell Template
//
// Copyright (C) 2020 Maker Ecosystem Growth Holdings, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity ^0.6.12; */

interface PauseAbstract {
    function delay() external view returns (uint256);
    function plot(address, bytes32, bytes calldata, uint256) external;
    function exec(address, bytes32, bytes calldata, uint256) external returns (bytes memory);
}

interface Changelog {
    function getAddress(bytes32) external view returns (address);
}

interface SpellAction {
    function officeHours() external view returns (bool);
    function description() external view returns (string memory);
    function nextCastTime(uint256) external view returns (uint256);
}

contract DssExec {

Changelog      constant public log   = Changelog(0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F);
    uint256                 public eta;
    bytes                   public sig;
    bool                    public done;
    bytes32       immutable public tag;
    address       immutable public action;
    uint256       immutable public expiration;
    PauseAbstract immutable public pause;

function officeHours() external view returns (bool) {
        return SpellAction(action).officeHours();
    }

function nextCastTime() external view returns (uint256 castTime) {
        return SpellAction(action).nextCastTime(eta);
    }

// @param _description  A string description of the spell
    // @param _expiration   The timestamp this spell will expire. (Ex. now + 30 days)
    // @param _spellAction  The address of the spell action
    constructor(uint256 _expiration, address _spellAction) public {
        pause       = PauseAbstract(log.getAddress("MCD_PAUSE"));
        expiration  = _expiration;
        action      = _spellAction;

sig = abi.encodeWithSignature("execute()");
        bytes32 _tag;                    // Required for assembly access
        address _action = _spellAction;  // Required for assembly access
        assembly { _tag := extcodehash(_action) }
        tag = _tag;
    }

function schedule() public {
        require(now <= expiration, "This contract has expired");
        require(eta == 0, "This spell has already been scheduled");
        eta = now + PauseAbstract(pause).delay();
        pause.plot(action, tag, sig, eta);
    }

function cast() public {
        require(!done, "spell-already-cast");
        done = true;
        pause.exec(action, tag, sig, eta);
    }
}

////// src/DssSpell.sol
//
// Copyright (C) 2021 Dai Foundation
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity 0.6.12; */
/* pragma experimental ABIEncoderV2; */

/* import "dss-exec-lib/DssExec.sol"; */
/* import "dss-exec-lib/DssAction.sol"; */

contract DssSpellAction is DssAction {
    // Provides a descriptive tag for bot consumption
    // This should be modified weekly to provide a summary of the actions
    // Hash: seth keccak -- "$(wget https://raw.githubusercontent.com/makerdao/community/2dfe2a94162345e448c0353ec0e522038572366a/governance/votes/Executive%20vote%20-%20December%203%2C%202021.md -q -O - 2>/dev/null)"
    string public constant override description =
        "2021-12-03 MakerDAO Executive Spell | Hash: 0x9068bf87d0ec441f57ff92e2544a3df16d42a481b3e94ec2c37a443031833b84";

// Many of the settings that change weekly rely on the rate accumulator
    // described at https://docs.makerdao.com/smart-contract-modules/rates-module
    // To check this yourself, use the following rate calculation (example 8%):
    //
    // $ bc -l <<< 'scale=27; e( l(1.08)/(60 * 60 * 24 * 365) )'
    //
    // A table of rates can be found at
    //    https://ipfs.io/ipfs/QmefQMseb3AiTapiAKKexdKHig8wroKuZbmLtPLv4u2YwW
    //

// --- Rates ---
    uint256 constant ZERO_ONE_PCT_RATE       = 1000000000031693947650284507;
    uint256 constant ONE_PCT_RATE            = 1000000000315522921573372069;
    uint256 constant TWO_PCT_RATE            = 1000000000627937192491029810;
    uint256 constant TWO_FIVE_PCT_RATE       = 1000000000782997609082909351;
    uint256 constant TWO_SEVEN_FIVE_PCT_RATE = 1000000000860244400048238898;
    uint256 constant THREE_PCT_RATE          = 1000000000937303470807876289;
    uint256 constant FOUR_PCT_RATE           = 1000000001243680656318820312;
    uint256 constant SIX_PCT_RATE            = 1000000001847694957439350562;
    uint256 constant SIX_FIVE_PCT_RATE       = 1000000001996917783620820123;

// --- Math ---
    uint256 constant MILLION = 10 ** 6;
    uint256 constant BILLION = 10 ** 9;

// --- GUNIV3DAIUSDC2-A ---
    address constant GUNIV3DAIUSDC2                 = 0x50379f632ca68D36E50cfBC8F78fe16bd1499d1e;
    address constant MCD_JOIN_GUNIV3DAIUSDC2_A      = 0xA7e4dDde3cBcEf122851A7C8F7A55f23c0Daf335;
    address constant MCD_CLIP_GUNIV3DAIUSDC2_A      = 0xB55da3d3100C4eBF9De755b6DdC24BF209f6cc06;
    address constant MCD_CLIP_CALC_GUNIV3DAIUSDC2_A = 0xef051Ca2A2d809ba47ee0FC8caaEd06E3D832225;
    address constant PIP_GUNIV3DAIUSDC2             = 0xcCBa43231aC6eceBd1278B90c3a44711a00F4e93;

// --- Wallets ---
    address constant COM_WALLET               = 0x1eE3ECa7aEF17D1e74eD7C447CcBA61aC76aDbA9;
    address constant FLIPFLOPFLAP_WALLET      = 0x688d508f3a6B0a377e266405A1583B3316f9A2B3;
    address constant FEEDBLACKLOOPS_WALLET    = 0x80882f2A36d49fC46C3c654F7f9cB9a2Bf0423e1;
    address constant ULTRASCHUPPI_WALLET      = 0x89C5d54C979f682F40b73a9FC39F338C88B434c6;
    address constant FIELDTECHNOLOGIES_WALLET = 0x0988E41C02915Fe1beFA78c556f946E5F20ffBD3;

function actions() public override {

// ----------------------------- Collateral onboarding -----------------------------
        //  Add GUNIV3DAIUSDC2-A as a new Vault Type
        //  https://vote.makerdao.com/polling/QmSkHE8T?network=mainnet#poll-detail
        DssExecLib.addNewCollateral(
            CollateralOpts({
                ilk:                   "GUNIV3DAIUSDC2-A",
                gem:                   GUNIV3DAIUSDC2,
                join:                  MCD_JOIN_GUNIV3DAIUSDC2_A,
                clip:                  MCD_CLIP_GUNIV3DAIUSDC2_A,
                calc:                  MCD_CLIP_CALC_GUNIV3DAIUSDC2_A,
                pip:                   PIP_GUNIV3DAIUSDC2,
                isLiquidatable:        false,
                isOSM:                 true,
                whitelistOSM:          true,
                ilkDebtCeiling:        10 * MILLION,
                minVaultAmount:        15_000,
                maxLiquidationAmount:  5 * MILLION,
                liquidationPenalty:    1300,
                ilkStabilityFee:       ONE_PCT_RATE,
                startingPriceFactor:   10500,
                breakerTolerance:      9500,
                auctionDuration:       220 minutes,
                permittedDrop:         9000,
                liquidationRatio:      10500,
                kprFlatReward:         300,
                kprPctReward:          10
            })
        );

DssExecLib.setStairstepExponentialDecrease(MCD_CLIP_CALC_GUNIV3DAIUSDC2_A, 120 seconds, 9990);
        DssExecLib.setIlkAutoLineParameters("GUNIV3DAIUSDC2-A", 10 * MILLION, 10 * MILLION, 8 hours);

// ----------------------------- Rates updates -----------------------------
        // https://vote.makerdao.com/polling/QmNqCZGa?network=mainnet
        // Increase the ETH-A Stability Fee from 2.5% to 2.75%
        DssExecLib.setIlkStabilityFee("ETH-A", TWO_SEVEN_FIVE_PCT_RATE, true);

// Increase the ETH-B Stability Fee from 6.0% to 6.5%
        DssExecLib.setIlkStabilityFee("ETH-B", SIX_FIVE_PCT_RATE, true);

// Increase the LINK-A Stability Fee from 1.5% to 2.5%
        DssExecLib.setIlkStabilityFee("LINK-A", TWO_FIVE_PCT_RATE, true);

// Increase the MANA-A Stability Fee from 3.0% to 6.0%
        DssExecLib.setIlkStabilityFee("MANA-A", SIX_PCT_RATE, true);

// Increase the UNI-A Stability Fee from 1.0% to 3.0%
        DssExecLib.setIlkStabilityFee("UNI-A", THREE_PCT_RATE, true);

// Increase the GUSD-A Stability Fee from 0.0% to 1.0%
        DssExecLib.setIlkStabilityFee("GUSD-A", ONE_PCT_RATE, true);

// Increase the UNIV2DAIETH-A Stability Fee from 1.5% to 2.0%
        DssExecLib.setIlkStabilityFee("UNIV2DAIETH-A", TWO_PCT_RATE, true);

// Increase the UNIV2WBTCETH-A Stability Fee from 2.5% to 3.0%
        DssExecLib.setIlkStabilityFee("UNIV2WBTCETH-A", THREE_PCT_RATE, true);

// Increase the UNIV2USDCETH-A Stability Fee from 2.0% to 2.5%
        DssExecLib.setIlkStabilityFee("UNIV2USDCETH-A", TWO_FIVE_PCT_RATE, true);

// Increase the UNIV2UNIETH-A Stability Fee from 2.0% to 4.0%
        DssExecLib.setIlkStabilityFee("UNIV2UNIETH-A", FOUR_PCT_RATE, true);

// Decrease the GUNIV3DAIUSDC1-A Stability Fee from 0.5% to 0.1%
        DssExecLib.setIlkStabilityFee("GUNIV3DAIUSDC1-A", ZERO_ONE_PCT_RATE, true);

// ----------------------------- Debt Ceiling updates -----------------------------
        // Increase the WBTC-A Maximum Debt Ceiling (line) from 1.5 billion DAI to 2 billion DAI
        // Increase the WBTC-A Target Available Debt (gap) from 60 million DAI to 80 million DAI
        // https://vote.makerdao.com/polling/QmNqCZGa?network=mainnet
        DssExecLib.setIlkAutoLineParameters("WBTC-A", 2 * BILLION, 80 * MILLION, 6 hours);

// Increase the Dust Parameter from 30,000 DAI to 40,000 DAI for the ETH-B
        // https://vote.makerdao.com/polling/QmZXnn16?network=mainnet#poll-detail
        DssExecLib.setIlkMinVaultAmount("ETH-B", 40_000);

// Increase the Dust Parameter from 10,000 DAI to 15,000 DAI for all vault-types excluding ETH-B and ETH-C
        // https://vote.makerdao.com/polling/QmUYLPcr?network=mainnet#poll-detail
        DssExecLib.setIlkMinVaultAmount("ETH-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("USDC-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("WBTC-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("TUSD-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("MANA-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("PAXUSD-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("LINK-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("YFI-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("GUSD-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNI-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("RENBTC-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNIV2DAIETH-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNIV2WBTCETH-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNIV2USDCETH-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNIV2DAIUSDC-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNIV2UNIETH-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("UNIV2WBTCDAI-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("MATIC-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("GUNIV3DAIUSDC1-A", 15_000);
        DssExecLib.setIlkMinVaultAmount("WSTETH-A", 15_000);

// ----------------------------- Budget distributions -----------------------------

// Core Unit Budget Distributions
        DssExecLib.sendPaymentFromSurplusBuffer(COM_WALLET, 27_058);
        // Delegate Compensation Payments
        DssExecLib.sendPaymentFromSurplusBuffer(FLIPFLOPFLAP_WALLET, 12_000);
        DssExecLib.sendPaymentFromSurplusBuffer(FEEDBLACKLOOPS_WALLET, 12_000);
        DssExecLib.sendPaymentFromSurplusBuffer(ULTRASCHUPPI_WALLET, 8_144);
        DssExecLib.sendPaymentFromSurplusBuffer(FIELDTECHNOLOGIES_WALLET, 3_690);

// Changelog
        DssExecLib.setChangelogAddress("GUNIV3DAIUSDC2", GUNIV3DAIUSDC2);
        DssExecLib.setChangelogAddress("MCD_JOIN_GUNIV3DAIUSDC2_A", MCD_JOIN_GUNIV3DAIUSDC2_A);
        DssExecLib.setChangelogAddress("MCD_CLIP_GUNIV3DAIUSDC2_A", MCD_CLIP_GUNIV3DAIUSDC2_A);
        DssExecLib.setChangelogAddress("MCD_CLIP_CALC_GUNIV3DAIUSDC2_A", MCD_CLIP_CALC_GUNIV3DAIUSDC2_A);
        DssExecLib.setChangelogAddress("PIP_GUNIV3DAIUSDC2", PIP_GUNIV3DAIUSDC2);

DssExecLib.setChangelogVersion("1.9.12");
    }
}

contract DssSpell is DssExec {
    constructor() DssExec(block.timestamp + 30 days, address(new DssSpellAction())) public {}
}

Changed text

Open file

/**
 *Submitted for verification at Etherscan.io on 2021-12-06
*/

// hevm: flattened sources of src/DssSpell.sol
// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity =0.6.12 >=0.6.12 <0.7.0;
pragma experimental ABIEncoderV2;

////// lib/dss-exec-lib/src/CollateralOpts.sol
/* pragma solidity ^0.6.12; */

/* import { CollateralOpts } from "./CollateralOpts.sol"; */

interface Initializable {
    function init(bytes32) external;
}

interface Authorizable {
    function rely(address) external;
    function deny(address) external;
}

interface Drippable {
    function drip() external returns (uint256);
    function drip(bytes32) external returns (uint256);
}

interface Pricing {
    function poke(bytes32) external;
}

interface ERC20 {
    function decimals() external returns (uint8);
}

interface DogLike {
    function ilks(bytes32) external returns (address clip, uint256 chop, uint256 hole, uint256 dirt);
}

interface MomLike {
    function setOsm(bytes32, address) external;
    function setPriceTolerance(address, uint256) external;
}

interface RegistryLike {
    function add(address) external;
    function xlip(bytes32) external view returns (address);
}

interface LerpLike {
    function tick() external returns (uint256);
}

library DssExecLib {

/* WARNING

The following library code acts as an interface to the actual DssExecLib
library, which can be found in its own deployed contract. Only trust the actual
library's implementation.

address constant public LOG = 0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F;
    uint256 constant internal WAD      = 10 ** 18;
    uint256 constant internal RAY      = 10 ** 27;
    uint256 constant internal RAD      = 10 ** 45;
    uint256 constant internal THOUSAND = 10 ** 3;
    uint256 constant internal MILLION  = 10 ** 6;
    uint256 constant internal BPS_ONE_PCT             = 100;
    uint256 constant internal BPS_ONE_HUNDRED_PCT     = 100 * BPS_ONE_PCT;
    uint256 constant internal RATES_ONE_HUNDRED_PCT   = 1000000021979553151239153027;
    function add(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function dai()        public view returns (address) { return getChangelogAddress("MCD_DAI"); }
    function vat()        public view returns (address) { return getChangelogAddress("MCD_VAT"); }
    function cat()        public view returns (address) { return getChangelogAddress("MCD_CAT"); }
    function dog()        public view returns (address) { return getChangelogAddress("MCD_DOG"); }
    function jug()        public view returns (address) { return getChangelogAddress("MCD_JUG"); }
    function pot()        public view returns (address) { return getChangelogAddress("MCD_POT"); }
    function vow()        public view returns (address) { return getChangelogAddress("MCD_VOW"); }
    function end()        public view returns (address) { return getChangelogAddress("MCD_END"); }
    function esm()        public view returns (address) { return getChangelogAddress("MCD_ESM"); }
    function reg()        public view returns (address) { return getChangelogAddress("ILK_REGISTRY"); }
    function spotter()    public view returns (address) { return getChangelogAddress("MCD_SPOT"); }
    function osmMom()     public view returns (address) { return getChangelogAddress("OSM_MOM"); }
    function clipperMom() public view returns (address) { return getChangelogAddress("CLIPPER_MOM"); }
    function autoLine()   public view returns (address) { return getChangelogAddress("MCD_IAM_AUTO_LINE"); }
    function daiJoin()    public view returns (address) { return getChangelogAddress("MCD_JOIN_DAI"); }
    function lerpFab()    public view returns (address) { return getChangelogAddress("LERP_FAB"); }
    function clip(bytes32 _ilk) public view returns (address _clip) {}
    function flip(bytes32 _ilk) public view returns (address _flip) {}
    function calc(bytes32 _ilk) public view returns (address _calc) {}
    function getChangelogAddress(bytes32 _key) public view returns (address) {}
    function setChangelogAddress(bytes32 _key, address _val) public {}
    function setChangelogVersion(string memory _version) public {}
    function authorize(address _base, address _ward) public {}
    function canCast(uint40 _ts, bool _officeHours) public pure returns (bool) {}
    function nextCastTime(uint40 _eta, uint40 _ts, bool _officeHours) public pure returns (uint256 castTime) {}
    function updateCollateralPrice(bytes32 _ilk) public {}
    function setContract(address _base, bytes32 _what, address _addr) public {}
    function setContract(address _base, bytes32 _ilk, bytes32 _what, address _addr) public {}
    function setValue(address _base, bytes32 _what, uint256 _amt) public {}
    function setValue(address _base, bytes32 _ilk, bytes32 _what, uint256 _amt) public {}
    function increaseGlobalDebtCeiling(uint256 _amount) public {}
    function setIlkDebtCeiling(bytes32 _ilk, uint256 _amount) public {}
    function setIlkAutoLineParameters(bytes32 _ilk, uint256 _amount, uint256 _gap, uint256 _ttl) public {}
    function setIlkMinVaultAmount(bytes32 _ilk, uint256 _amount) public {}
    function setIlkLiquidationPenalty(bytes32 _ilk, uint256 _pct_bps) public {}
    function setIlkMaxLiquidationAmount(bytes32 _ilk, uint256 _amount) public {}
    function setIlkLiquidationRatio(bytes32 _ilk, uint256 _pct_bps) public {}
    function setStartingPriceMultiplicativeFactor(bytes32 _ilk, uint256 _pct_bps) public {}
    function setAuctionTimeBeforeReset(bytes32 _ilk, uint256 _duration) public {}
    function setAuctionPermittedDrop(bytes32 _ilk, uint256 _pct_bps) public {}
    function setKeeperIncentivePercent(bytes32 _ilk, uint256 _pct_bps) public {}
    function setKeeperIncentiveFlatRate(bytes32 _ilk, uint256 _amount) public {}
    function setLiquidationBreakerPriceTolerance(address _clip, uint256 _pct_bps) public {}
    function setIlkStabilityFee(bytes32 _ilk, uint256 _rate, bool _doDrip) public {}
    function setStairstepExponentialDecrease(address _calc, uint256 _duration, uint256 _pct_bps) public {}
    function whitelistOracleMedians(address _oracle) public {}
    function addReaderToWhitelist(address _oracle, address _reader) public {}
    function addReaderToWhitelistCall(address _oracle, address _reader) public {}
    function allowOSMFreeze(address _osm, bytes32 _ilk) public {}
    function addCollateralBase(
        bytes32 _ilk,
        address _gem,
        address _join,
        address _clip,
        address _calc,
        address _pip
    ) public {}
    function addNewCollateral(CollateralOpts memory co) public {}
    function sendPaymentFromSurplusBuffer(address _target, uint256 _amount) public {}
    function linearInterpolation(bytes32 _name, address _target, bytes32 _ilk, bytes32 _what, uint256 _startTime, uint256 _start, uint256 _end, uint256 _duration) public returns (address) {}
}