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* as async from \"async\";\nimport * as browserResolve from \"browser-resolve\";\nimport * as fs from \"fs\";\nimport * as os from \"os\";\nimport * as path from \"path\";\n\nimport { Logger } from \"log4js\";\n\nimport { Configuration } from \"../../shared/configuration\";\nimport { BundleItem } from \"../bundle-item\";\nimport { DependencyWalker } from \"../dependency-walker\";\nimport { SourceReader } from \"./source-reader\";\n\nimport PathTool = require(\"../../shared/path-tool\");\n\nexport class Resolver {\n\n private shims: any;\n private bowerPackages: { [key: string]: string; } = {};\n private filenameCache: string[] = [];\n private lookupNameCache: { [key: string]: string; } = {};\n\n constructor(private config: Configuration,\n private dependencyWalker: DependencyWalker,\n private log: Logger,\n private sourceReader: SourceReader) { }\n\n public initialize() {\n this.shims = this.config.bundlerOptions.addNodeGlobals ?\n require(\"./shims\") : undefined;\n this.log.debug(this.shims);\n this.cacheBowerPackages();\n }\n\n public resolveModule(requiringModule: string,\n bundleItem: BundleItem,\n buffer: BundleItem[],\n onModuleResolved: (bundleItem: BundleItem) => void) {\n\n if (bundleItem.isTypescriptFile() && !bundleItem.isNpmModule()) {\n process.nextTick(() => {\n onModuleResolved(bundleItem);\n });\n return;\n }\n\n if (bundleItem.isTypingsFile() && !bundleItem.isNpmModule()) {\n this.tryResolveTypingAsJavascript(bundleItem, onModuleResolved);\n return;\n }\n\n bundleItem.lookupName = bundleItem.isNpmModule() ?\n bundleItem.moduleName :\n path.join(path.dirname(requiringModule), bundleItem.moduleName);\n\n if (this.lookupNameCache[bundleItem.lookupName]) {\n bundleItem.filename = this.lookupNameCache[bundleItem.lookupName];\n process.nextTick(() => {\n onModuleResolved(bundleItem);\n });\n return;\n }\n\n if (this.config.bundlerOptions.exclude.indexOf(bundleItem.moduleName) !== -1) {\n this.log.debug(\"Excluding module %s from %s\", bundleItem.moduleName, requiringModule);\n process.nextTick(() => {\n onModuleResolved(bundleItem);\n });\n return;\n }\n\n const onFilenameResolved = () => {\n\n this.lookupNameCache[bundleItem.lookupName] = bundleItem.filename;\n\n if (this.isInFilenameCache(bundleItem) || bundleItem.isTypescriptFile()) {\n process.nextTick(() => {\n onModuleResolved(bundleItem);\n });\n }\n else {\n this.filenameCache.push(bundleItem.filename);\n this.sourceReader.read(bundleItem, () => {\n this.resolveDependencies(bundleItem, buffer, onDependenciesResolved);\n });\n }\n };\n\n const onDependenciesResolved = () => {\n buffer.push(bundleItem);\n return onModuleResolved(bundleItem);\n };\n\n this.resolveFilename(requiringModule, bundleItem, onFilenameResolved);\n }\n\n private tryResolveTypingAsJavascript(bundleItem: BundleItem,\n onModuleResolved: (bundleItem: BundleItem) => void): void {\n const jsfile = bundleItem.filename.replace(/.d.ts$/i, \".js\");\n fs.stat(jsfile, (error: Error, stats: fs.Stats) => {\n if (!error && stats) {\n this.log.debug(\"Resolving %s to %s\", bundleItem.filename, jsfile);\n bundleItem.filename = jsfile;\n }\n onModuleResolved(bundleItem);\n });\n }\n\n private cacheBowerPackages(): void {\n try {\n const bower = require(\"bower\");\n bower.commands\n .list({ map: true }, { offline: true })\n .on(\"end\", (map: any) => {\n\n Object.keys(map.dependencies).forEach((moduleName) => {\n\n const pkg = map.dependencies[moduleName];\n const files = [\"index.js\", moduleName + \".js\"];\n\n if (pkg.pkgMeta && pkg.pkgMeta.main) {\n if (Array.isArray(pkg.pkgMeta.main)) {\n pkg.pkgMeta.main.forEach((file: any) => {\n files.push(file);\n });\n }\n else {\n files.push(pkg.pkgMeta.main);\n }\n }\n\n files.forEach((file) => {\n try {\n const main = path.join(pkg.canonicalDir, file);\n fs.statSync(main);\n this.bowerPackages[moduleName] = main;\n }\n catch (error) {\n // noop\n }\n });\n });\n this.log.debug(\"Cached bower packages: %s %s\", os.EOL, JSON.stringify(this.bowerPackages, null, 2));\n });\n }\n catch (error) {\n this.log.debug(\"No bower detected, skipping\");\n }\n }\n\n private isInFilenameCache(bundleItem: BundleItem): boolean {\n return this.filenameCache.indexOf(bundleItem.filename) !== -1;\n }\n\n private resolveCompilerPathModulename(bundleItem: BundleItem): string {\n\n let moduleName = bundleItem.moduleName;\n\n if (bundleItem.isNpmModule() && bundleItem.isTypingsFile() &&\n bundleItem.filename.indexOf(bundleItem.moduleName) === -1) {\n\n const filename = PathTool.fixWindowsPath(bundleItem.filename);\n const matches = filename.match(/\\/node_modules\\/(.*)\\//);\n\n if (matches && matches[1]) {\n moduleName = matches[1];\n this.log.debug(\"Resolved module name [%s] to [%s]\", bundleItem.moduleName, moduleName);\n }\n }\n\n return moduleName;\n }\n\n private resolveFilename(requiringModule: string, bundleItem: BundleItem, onFilenameResolved: () => void) {\n\n const moduleName = this.resolveCompilerPathModulename(bundleItem);\n\n if (this.bowerPackages[moduleName]) {\n bundleItem.filename = this.bowerPackages[moduleName];\n this.log.debug(\"Resolved [%s] to bower package: %s\", moduleName, bundleItem.filename);\n return onFilenameResolved();\n }\n\n if (this.config.bundlerOptions.resolve.alias[moduleName]) {\n const alias = this.config.bundlerOptions.resolve.alias[moduleName];\n const relativePath = path.relative(this.config.karma.basePath, alias);\n bundleItem.filename = path.join(this.config.karma.basePath, relativePath);\n this.log.debug(\"Resolved [%s] to alias: %s\", moduleName, bundleItem.filename);\n return onFilenameResolved();\n }\n\n let bopts: browserResolve.AsyncOpts = {\n extensions: this.config.bundlerOptions.resolve.extensions,\n filename: requiringModule,\n moduleDirectory: this.config.bundlerOptions.resolve.directories,\n modules: this.shims\n };\n\n browserResolve(moduleName, bopts, (error, filename) => {\n if (!error) {\n bundleItem.filename = fs.realpathSync(filename);\n return onFilenameResolved();\n }\n bopts = {\n basedir: bundleItem.filename ? path.dirname(bundleItem.filename) : this.config.karma.basePath,\n extensions: this.config.bundlerOptions.resolve.extensions,\n moduleDirectory: this.config.bundlerOptions.resolve.directories,\n modules: this.shims\n };\n\n browserResolve(moduleName, bopts, (error2, filename2) => {\n if (error2) {\n if (bundleItem.filename && !bundleItem.isTypingsFile()) {\n // This is probably a compiler path module (.js)\n return onFilenameResolved();\n }\n throw new Error(\"Unable to resolve module [\" +\n moduleName + \"] from [\" + requiringModule + \"]\" + os.EOL +\n JSON.stringify(bopts, undefined, 2) + os.EOL +\n error);\n }\n bundleItem.filename = fs.realpathSync(filename2);\n onFilenameResolved();\n });\n });\n }\n\n private resolveDependencies(bundleItem: BundleItem,\n buffer: BundleItem[],\n onDependenciesResolved: () => void) {\n\n if (bundleItem.isScript() && this.dependencyWalker.hasRequire(bundleItem.source)) {\n this.dependencyWalker.collectJavascriptDependencies(bundleItem, (moduleNames) => {\n async.each(moduleNames, (moduleName, onModuleResolved) => {\n const dependency = new BundleItem(moduleName);\n this.resolveModule(bundleItem.filename, dependency, buffer, (resolved) => {\n if (resolved) {\n bundleItem.dependencies.push(resolved);\n }\n onModuleResolved();\n });\n }, onDependenciesResolved);\n });\n }\n else {\n process.nextTick(() => {\n onDependenciesResolved();\n });\n }\n }\n}\n"]} |