| 1 | 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* as ts from 'typescript';\nimport * as ng from '@angular/compiler-cli';\nimport * as path from 'path';\nimport { ensureUnixPath } from '../utils/path';\nimport { error } from '../utils/log';\nimport { StylesheetProcessor } from '../styles/stylesheet-processor';\nimport { EntryPointNode, fileUrl } from '../ng-package/nodes';\nimport { BuildGraph } from '../graph/build-graph';\nimport { FileCache } from '../file-system/file-cache';\nimport { Node } from '../graph/node';\nimport { createHash } from 'crypto';\n\nexport function cacheCompilerHost(\n graph: BuildGraph,\n entryPoint: EntryPointNode,\n compilerOptions: ng.CompilerOptions,\n moduleResolutionCache: ts.ModuleResolutionCache,\n stylesheetProcessor?: StylesheetProcessor,\n sourcesFileCache: FileCache = entryPoint.cache.sourcesFileCache,\n setParentNodes = true,\n): ng.CompilerHost {\n const tsHost = ts.createCompilerHost(compilerOptions, setParentNodes);\n const compilerHost = ng.createCompilerHost({ options: compilerOptions, tsHost });\n\n const getNode = (fileName: string) => {\n const nodeUri = fileUrl(ensureUnixPath(fileName));\n let node = graph.get(nodeUri);\n\n if (!node) {\n node = new Node(nodeUri);\n graph.put(node);\n }\n\n return node;\n };\n\n const addDependee = (fileName: string) => {\n const node = getNode(fileName);\n entryPoint.dependsOn(node);\n };\n\n return {\n ...compilerHost,\n\n // ts specific\n fileExists: (fileName: string) => {\n const cache = sourcesFileCache.getOrCreate(fileName);\n if (cache.exists === undefined) {\n cache.exists = compilerHost.fileExists.call(this, fileName);\n }\n return cache.exists;\n },\n\n getSourceFile: (fileName: string, languageVersion: ts.ScriptTarget) => {\n addDependee(fileName);\n const cache = sourcesFileCache.getOrCreate(fileName);\n if (!cache.sourceFile) {\n cache.sourceFile = compilerHost.getSourceFile.call(this, fileName, languageVersion);\n }\n return cache.sourceFile;\n },\n\n writeFile: (\n fileName: string,\n data: string,\n writeByteOrderMark: boolean,\n onError?: (message: string) => void,\n sourceFiles?: ReadonlyArray<ts.SourceFile>,\n ) => {\n if (fileName.endsWith('.d.ts')) {\n sourceFiles.forEach(source => {\n const cache = sourcesFileCache.getOrCreate(source.fileName);\n if (!cache.declarationFileName) {\n cache.declarationFileName = ensureUnixPath(fileName);\n }\n });\n }\n\n compilerHost.writeFile.call(this, fileName, data, writeByteOrderMark, onError, sourceFiles);\n },\n\n readFile: (fileName: string) => {\n addDependee(fileName);\n\n const cache = sourcesFileCache.getOrCreate(fileName);\n if (cache.content === undefined) {\n cache.content = compilerHost.readFile.call(this, fileName);\n }\n return cache.content;\n },\n\n resolveModuleNames: (moduleNames: string[], containingFile: string) => {\n return moduleNames.map(moduleName => {\n const { resolvedModule } = ts.resolveModuleName(\n moduleName,\n ensureUnixPath(containingFile),\n compilerOptions,\n compilerHost,\n moduleResolutionCache,\n );\n\n return resolvedModule;\n });\n },\n\n // ng specific\n moduleNameToFileName: (moduleName: string, containingFile: string) => {\n const { resolvedModule } = ts.resolveModuleName(\n moduleName,\n ensureUnixPath(containingFile),\n compilerOptions,\n compilerHost,\n moduleResolutionCache,\n );\n\n return resolvedModule && resolvedModule.resolvedFileName;\n },\n\n resourceNameToFileName: (resourceName: string, containingFilePath: string) => {\n const resourcePath = path.resolve(path.dirname(containingFilePath), resourceName);\n const containingNode = getNode(containingFilePath);\n const resourceNode = getNode(resourcePath);\n containingNode.dependsOn(resourceNode);\n\n return resourcePath;\n },\n\n readResource: (fileName: string) => {\n addDependee(fileName);\n\n const cache = sourcesFileCache.getOrCreate(fileName);\n if (cache.content === undefined) {\n if (/(?:html?|svg)$/.test(path.extname(fileName))) {\n // template\n cache.content = compilerHost.readFile.call(this, fileName);\n } else {\n // stylesheet\n try {\n cache.content = stylesheetProcessor.process(fileName);\n } catch (err) {\n error('\\n' + err.message + ` in stylesheet file ${fileName}.`);\n throw err;\n }\n }\n\n if (cache.content === undefined) {\n throw new Error(`Cannot read file ${fileName}.`);\n }\n\n cache.exists = true;\n }\n\n return cache.content;\n },\n };\n}\n\nexport function augmentProgramWithVersioning(program: ts.Program): void {\n const baseGetSourceFiles = program.getSourceFiles;\n program.getSourceFiles = function (...parameters) {\n const files: readonly (ts.SourceFile & { version?: string })[] = baseGetSourceFiles(...parameters);\n\n for (const file of files) {\n if (file.version === undefined) {\n file.version = createHash('sha256').update(file.text).digest('hex');\n }\n }\n\n return files;\n };\n}\n"]} |