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* as combineSourceMap from \"combine-source-map\";\nimport * as convertSourceMap from \"convert-source-map\";\nimport * as fs from \"fs\";\nimport * as path from \"path\";\n\nimport { Logger } from \"log4js\";\nimport { Configuration } from \"../shared/configuration\";\nimport { BundleItem } from \"./bundle-item\";\nimport { Queued } from \"./queued\";\n\nexport class SourceMap {\n\n private combiner: Combiner;\n private line: number = 0;\n\n constructor(private config: Configuration, private log: Logger) {}\n\n public initialize(bundle: string) {\n this.combiner = combineSourceMap.create();\n this.line = this.getNumberOfNewlines(bundle);\n }\n\n public removeSourceMapComment(queued: Queued): string {\n return queued.emitOutput.sourceMapText ?\n combineSourceMap.removeComments(queued.emitOutput.outputText) :\n queued.emitOutput.outputText;\n }\n\n public getSourceMap(queued: Queued): convertSourceMap.SourceMapConverter {\n if (queued.emitOutput.sourceMapText) {\n\n const map = convertSourceMap.fromJSON(queued.emitOutput.sourceMapText);\n if (!map.getProperty(\"sourcesContent\")) {\n map.addProperty(\"sourcesContent\", [queued.emitOutput.sourceFile.text]);\n }\n\n return map;\n }\n\n return undefined;\n }\n\n public addFile(bundleItem: BundleItem) {\n\n if (this.config.bundlerOptions.sourceMap) {\n\n this.loadFileFromComment(bundleItem);\n\n const sourceFile = path.relative(this.config.karma.basePath, bundleItem.filename);\n this.combiner.addFile(\n { sourceFile: path.join(\"/base\", sourceFile), source: bundleItem.source },\n { line: this.line }\n );\n }\n\n bundleItem.source = combineSourceMap.removeComments(bundleItem.source);\n }\n\n public offsetLineNumber(wrappedSource: string) {\n if (this.config.bundlerOptions.sourceMap) {\n this.line += this.getNumberOfNewlines(wrappedSource);\n }\n }\n\n public getComment() {\n return this.config.bundlerOptions.sourceMap ? this.combiner.comment() : \"\";\n }\n\n public loadFileFromComment(bundleItem: BundleItem) {\n\n const commentMatch = convertSourceMap.mapFileCommentRegex.exec(bundleItem.source);\n\n if (commentMatch && commentMatch[1]) {\n\n let map: convertSourceMap.SourceMapConverter;\n const dirname = path.dirname(bundleItem.filename);\n\n if (!commentMatch[1].startsWith(\"data:\")) {\n const mapFilename = path.join(dirname, commentMatch[1]);\n try {\n const mapJson = fs.readFileSync(mapFilename, \"utf-8\");\n map = convertSourceMap.fromJSON(mapJson);\n }\n catch (error) {\n this.log.debug(\"Source map %s doesn't exist\", mapFilename);\n }\n }\n else {\n map = convertSourceMap.fromComment(commentMatch[0]);\n }\n\n if (!map) {\n this.log.debug(\"Unable to resolve source map for %s\", bundleItem.filename);\n return;\n }\n\n if (!map.getProperty(\"sourcesContent\")) {\n\n const sourcesContent: string[] = [];\n map.getProperty(\"sources\").forEach((source: string) => {\n const sourceFilename = path.join(dirname, source);\n try {\n const sourceContent = fs.readFileSync(sourceFilename, \"utf-8\");\n sourcesContent.push(sourceContent);\n }\n catch (error) {\n this.log.debug(\"Source file %s doesn't exist\", sourceFilename);\n }\n });\n map.addProperty(\"sourcesContent\", sourcesContent);\n }\n\n this.cleanupSources(map);\n\n bundleItem.source = combineSourceMap.removeComments(bundleItem.source) + map.toComment();\n }\n }\n\n private cleanupSources(map: convertSourceMap.SourceMapConverter) {\n map.sourcemap.sources.forEach((source: string, index: number) => {\n map.sourcemap.sources[index] = source.replace(\"webpack:///\", \"\");\n });\n }\n\n private getNumberOfNewlines(source: any) {\n const newlines = source.match(/\\n/g);\n return newlines ? newlines.length : 0;\n }\n}\n"]} |