diff options
Diffstat (limited to 'packages/deployer/src/compiler.ts')
| -rw-r--r-- | packages/deployer/src/compiler.ts | 235 |
1 files changed, 78 insertions, 157 deletions
diff --git a/packages/deployer/src/compiler.ts b/packages/deployer/src/compiler.ts index e840ed572..1f521dca1 100644 --- a/packages/deployer/src/compiler.ts +++ b/packages/deployer/src/compiler.ts @@ -5,10 +5,19 @@ import 'isomorphic-fetch'; import * as _ from 'lodash'; import * as path from 'path'; import * as requireFromString from 'require-from-string'; +import * as semver from 'semver'; import solc = require('solc'); import * as Web3 from 'web3'; import { binPaths } from './solc/bin_paths'; +import { + createArtifactsDirIfDoesNotExistAsync, + findImportIfExist, + getContractArtifactIfExistsAsync, + getNormalizedErrMsg, + parseDependencies, + parseSolidityVersionRange, +} from './utils/compiler'; import { constants } from './utils/constants'; import { fsWrapper } from './utils/fs_wrapper'; import { @@ -23,10 +32,6 @@ import { import { utils } from './utils/utils'; const ALL_CONTRACTS_IDENTIFIER = '*'; -const SOLIDITY_VERSION_REGEX = /(?:solidity\s\^?)(\d+\.\d+\.\d+)/; -const SOLIDITY_FILE_EXTENSION_REGEX = /(.*\.sol)/; -const IMPORT_REGEX = /(import\s)/; -const DEPENDENCY_PATH_REGEX = /"([^"]+)"/; // Source: https://github.com/BlockChainCompany/soljitsu/blob/master/lib/shared.js /** * The Compiler facilitates compiling Solidity smart contracts and saves the results @@ -35,9 +40,10 @@ const DEPENDENCY_PATH_REGEX = /"([^"]+)"/; // Source: https://github.com/BlockCh export class Compiler { private _contractsDir: string; private _networkId: number; - private _optimizerEnabled: number; + private _optimizerEnabled: boolean; private _artifactsDir: string; - private _contractSources?: ContractSources; + // This get's set in the beggining of `compileAsync` function. It's not called from a constructor, but it's the only public method of that class and could as well be. + private _contractSources!: ContractSources; private _solcErrors: Set<string> = new Set(); private _specifiedContracts: Set<string> = new Set(); private _contractSourceData: ContractSourceData = {}; @@ -82,64 +88,6 @@ export class Compiler { return sources; } /** - * Gets contract dependendencies and keccak256 hash from source. - * @param source Source code of contract. - * @return Object with contract dependencies and keccak256 hash of source. - */ - private static _getContractSpecificSourceData(source: string): ContractSpecificSourceData { - const dependencies: string[] = []; - const sourceHash = ethUtil.sha3(source); - const solcVersion = Compiler._parseSolidityVersion(source); - const contractSpecificSourceData: ContractSpecificSourceData = { - dependencies, - solcVersion, - sourceHash, - }; - const lines = source.split('\n'); - _.forEach(lines, line => { - if (!_.isNull(line.match(IMPORT_REGEX))) { - const dependencyMatch = line.match(DEPENDENCY_PATH_REGEX); - if (!_.isNull(dependencyMatch)) { - const dependencyPath = dependencyMatch[1]; - const fileName = path.basename(dependencyPath); - contractSpecificSourceData.dependencies.push(fileName); - } - } - }); - return contractSpecificSourceData; - } - /** - * Searches Solidity source code for compiler version. - * @param source Source code of contract. - * @return Solc compiler version. - */ - private static _parseSolidityVersion(source: string): string { - const solcVersionMatch = source.match(SOLIDITY_VERSION_REGEX); - if (_.isNull(solcVersionMatch)) { - throw new Error('Could not find Solidity version in source'); - } - const solcVersion = solcVersionMatch[1]; - return solcVersion; - } - /** - * Normalizes the path found in the error message. - * Example: converts 'base/Token.sol:6:46: Warning: Unused local variable' - * to 'Token.sol:6:46: Warning: Unused local variable' - * This is used to prevent logging the same error multiple times. - * @param errMsg An error message from the compiled output. - * @return The error message with directories truncated from the contract path. - */ - private static _getNormalizedErrMsg(errMsg: string): string { - const errPathMatch = errMsg.match(SOLIDITY_FILE_EXTENSION_REGEX); - if (_.isNull(errPathMatch)) { - throw new Error('Could not find a path in error message'); - } - const errPath = errPathMatch[0]; - const baseContract = path.basename(errPath); - const normalizedErrMsg = errMsg.replace(errPath, baseContract); - return normalizedErrMsg; - } - /** * Instantiates a new instance of the Compiler class. * @param opts Options specifying directories, network, and optimization settings. * @return An instance of the Compiler class. @@ -152,21 +100,18 @@ export class Compiler { this._specifiedContracts = opts.specifiedContracts; } /** - * Compiles all Solidity files found in `contractsDir` and writes JSON artifacts to `artifactsDir`. + * Compiles selected Solidity files found in `contractsDir` and writes JSON artifacts to `artifactsDir`. */ - public async compileAllAsync(): Promise<void> { - await this._createArtifactsDirIfDoesNotExistAsync(); + public async compileAsync(): Promise<void> { + await createArtifactsDirIfDoesNotExistAsync(this._artifactsDir); this._contractSources = await Compiler._getContractSourcesAsync(this._contractsDir); - _.forIn(this._contractSources, (source, fileName) => { - this._contractSourceData[fileName] = Compiler._getContractSpecificSourceData(source); - }); + _.forIn(this._contractSources, this._setContractSpecificSourceData.bind(this)); const fileNames = this._specifiedContracts.has(ALL_CONTRACTS_IDENTIFIER) ? _.keys(this._contractSources) : Array.from(this._specifiedContracts.values()); - _.forEach(fileNames, fileName => { - this._setSourceTreeHash(fileName); - }); - await Promise.all(_.map(fileNames, async fileName => this._compileContractAsync(fileName))); + for (const fileName of fileNames) { + await this._compileContractAsync(fileName); + } this._solcErrors.forEach(errMsg => { logUtils.log(errMsg); }); @@ -180,19 +125,28 @@ export class Compiler { throw new Error('Contract sources not yet initialized'); } const contractSpecificSourceData = this._contractSourceData[fileName]; - const currentArtifactIfExists = (await this._getContractArtifactIfExistsAsync(fileName)) as ContractArtifact; + const currentArtifactIfExists = await getContractArtifactIfExistsAsync(this._artifactsDir, fileName); const sourceHash = `0x${contractSpecificSourceData.sourceHash.toString('hex')}`; - const sourceTreeHash = `0x${contractSpecificSourceData.sourceTreeHashIfExists.toString('hex')}`; + const sourceTreeHash = `0x${contractSpecificSourceData.sourceTreeHash.toString('hex')}`; - const shouldCompile = - _.isUndefined(currentArtifactIfExists) || - currentArtifactIfExists.networks[this._networkId].optimizer_enabled !== this._optimizerEnabled || - currentArtifactIfExists.networks[this._networkId].source_tree_hash !== sourceTreeHash; + let shouldCompile = false; + if (_.isUndefined(currentArtifactIfExists)) { + shouldCompile = true; + } else { + const currentArtifact = currentArtifactIfExists as ContractArtifact; + shouldCompile = + currentArtifact.networks[this._networkId].optimizer_enabled !== this._optimizerEnabled || + currentArtifact.networks[this._networkId].source_tree_hash !== sourceTreeHash; + } if (!shouldCompile) { return; } - - const fullSolcVersion = binPaths[contractSpecificSourceData.solcVersion]; + const availableCompilerVersions = _.keys(binPaths); + const solcVersion = semver.maxSatisfying( + availableCompilerVersions, + contractSpecificSourceData.solcVersionRange, + ); + const fullSolcVersion = binPaths[solcVersion]; const compilerBinFilename = path.join(__dirname, '../../solc_bin', fullSolcVersion); let solcjs: string; const isCompilerAvailableLocally = fs.existsSync(compilerBinFilename); @@ -210,7 +164,7 @@ export class Compiler { } const solcInstance = solc.setupMethods(requireFromString(solcjs, compilerBinFilename)); - logUtils.log(`Compiling ${fileName}...`); + logUtils.log(`Compiling ${fileName} with Solidity v${solcVersion}...`); const source = this._contractSources[fileName]; const input = { [fileName]: source, @@ -218,20 +172,23 @@ export class Compiler { const sourcesToCompile = { sources: input, }; - const compiled = solcInstance.compile( - sourcesToCompile, - this._optimizerEnabled, - this._findImportsIfSourcesExist.bind(this), + const compiled = solcInstance.compile(sourcesToCompile, Number(this._optimizerEnabled), importPath => + findImportIfExist(this._contractSources, importPath), ); if (!_.isUndefined(compiled.errors)) { _.forEach(compiled.errors, errMsg => { - const normalizedErrMsg = Compiler._getNormalizedErrMsg(errMsg); + const normalizedErrMsg = getNormalizedErrMsg(errMsg); this._solcErrors.add(normalizedErrMsg); }); } const contractName = path.basename(fileName, constants.SOLIDITY_FILE_EXTENSION); const contractIdentifier = `${fileName}:${contractName}`; + if (_.isUndefined(compiled.contracts[contractIdentifier])) { + throw new Error( + `Contract ${contractName} not found in ${fileName}. Please make sure your contract has the same name as it's file name`, + ); + } const abi: Web3.ContractAbi = JSON.parse(compiled.contracts[contractIdentifier].interface); const bytecode = `0x${compiled.contracts[contractIdentifier].bytecode}`; const runtimeBytecode = `0x${compiled.contracts[contractIdentifier].runtimeBytecode}`; @@ -240,7 +197,7 @@ export class Compiler { const sources = _.keys(compiled.sources); const updated_at = Date.now(); const contractNetworkData: ContractNetworkData = { - solc_version: contractSpecificSourceData.solcVersion, + solc_version: solcVersion, keccak256: sourceHash, source_tree_hash: sourceTreeHash, optimizer_enabled: this._optimizerEnabled, @@ -255,10 +212,11 @@ export class Compiler { let newArtifact: ContractArtifact; if (!_.isUndefined(currentArtifactIfExists)) { + const currentArtifact = currentArtifactIfExists as ContractArtifact; newArtifact = { - ...currentArtifactIfExists, + ...currentArtifact, networks: { - ...currentArtifactIfExists.networks, + ...currentArtifact.networks, [this._networkId]: contractNetworkData, }, }; @@ -277,79 +235,42 @@ export class Compiler { logUtils.log(`${fileName} artifact saved!`); } /** - * Sets the source tree hash for a file and its dependencies. - * @param fileName Name of contract file. - */ - private _setSourceTreeHash(fileName: string): void { - const contractSpecificSourceData = this._contractSourceData[fileName]; - if (_.isUndefined(contractSpecificSourceData)) { - throw new Error(`Contract data for ${fileName} not yet set`); - } - if (_.isUndefined(contractSpecificSourceData.sourceTreeHashIfExists)) { - const dependencies = contractSpecificSourceData.dependencies; - if (dependencies.length === 0) { - contractSpecificSourceData.sourceTreeHashIfExists = contractSpecificSourceData.sourceHash; - } else { - _.forEach(dependencies, dependency => { - this._setSourceTreeHash(dependency); - }); - const dependencySourceTreeHashes = _.map( - dependencies, - dependency => this._contractSourceData[dependency].sourceTreeHashIfExists, - ); - const sourceTreeHashesBuffer = Buffer.concat([ - contractSpecificSourceData.sourceHash, - ...dependencySourceTreeHashes, - ]); - contractSpecificSourceData.sourceTreeHashIfExists = ethUtil.sha3(sourceTreeHashesBuffer); - } - } - } - /** - * Callback to resolve dependencies with `solc.compile`. - * Throws error if contractSources not yet initialized. - * @param importPath Path to an imported dependency. - * @return Import contents object containing source code of dependency. + * Gets contract dependendencies and keccak256 hash from source. + * @param source Source code of contract. + * @return Object with contract dependencies and keccak256 hash of source. */ - private _findImportsIfSourcesExist(importPath: string): solc.ImportContents { - const fileName = path.basename(importPath); - const source = this._contractSources[fileName]; - if (_.isUndefined(source)) { - throw new Error(`Contract source not found for ${fileName}`); + private _setContractSpecificSourceData(source: string, fileName: string): void { + if (!_.isUndefined(this._contractSourceData[fileName])) { + return; } - const importContents: solc.ImportContents = { - contents: source, + const sourceHash = ethUtil.sha3(source); + const solcVersionRange = parseSolidityVersionRange(source); + const dependencies = parseDependencies(source); + const sourceTreeHash = this._getSourceTreeHash(fileName, sourceHash, dependencies); + this._contractSourceData[fileName] = { + dependencies, + solcVersionRange, + sourceHash, + sourceTreeHash, }; - return importContents; - } - /** - * Creates the artifacts directory if it does not already exist. - */ - private async _createArtifactsDirIfDoesNotExistAsync(): Promise<void> { - if (!fsWrapper.doesPathExistSync(this._artifactsDir)) { - logUtils.log('Creating artifacts directory...'); - await fsWrapper.mkdirAsync(this._artifactsDir); - } } /** - * Gets contract data on network or returns if an artifact does not exist. + * Gets the source tree hash for a file and its dependencies. * @param fileName Name of contract file. - * @return Contract data on network or undefined. */ - private async _getContractArtifactIfExistsAsync(fileName: string): Promise<ContractArtifact | void> { - let contractArtifact; - const contractName = path.basename(fileName, constants.SOLIDITY_FILE_EXTENSION); - const currentArtifactPath = `${this._artifactsDir}/${contractName}.json`; - try { - const opts = { - encoding: 'utf8', - }; - const contractArtifactString = await fsWrapper.readFileAsync(currentArtifactPath, opts); - contractArtifact = JSON.parse(contractArtifactString); - return contractArtifact; - } catch (err) { - logUtils.log(`Artifact for ${fileName} does not exist`); - return undefined; + private _getSourceTreeHash(fileName: string, sourceHash: Buffer, dependencies: string[]): Buffer { + if (dependencies.length === 0) { + return sourceHash; + } else { + const dependencySourceTreeHashes = _.map(dependencies, dependency => { + const source = this._contractSources[dependency]; + this._setContractSpecificSourceData(source, dependency); + const sourceData = this._contractSourceData[dependency]; + return this._getSourceTreeHash(dependency, sourceData.sourceHash, sourceData.dependencies); + }); + const sourceTreeHashesBuffer = Buffer.concat([sourceHash, ...dependencySourceTreeHashes]); + const sourceTreeHash = ethUtil.sha3(sourceTreeHashesBuffer); + return sourceTreeHash; } } } |