Make baselines faster by not writing out unneeded files

Gulpfile.ts

@@ -17,7 +17,7 @@ declare module "gulp-typescript" {
         stripInternal?: boolean;
         types?: string[];
     }
-    interface CompileStream extends NodeJS.ReadWriteStream {} // Either gulp or gulp-typescript has some odd typings which don't reflect reality, making this required
+    interface CompileStream extends NodeJS.ReadWriteStream { } // Either gulp or gulp-typescript has some odd typings which don't reflect reality, making this required
 }
 import * as insert from "gulp-insert";
 import * as sourcemaps from "gulp-sourcemaps";
@@ -65,7 +65,7 @@ const cmdLineOptions = minimist(process.argv.slice(2), {
     }
 });
 
-function exec(cmd: string, args: string[], complete: () => void = (() => {}), error: (e: any, status: number) => void = (() => {})) {
+function exec(cmd: string, args: string[], complete: () => void = (() => { }), error: (e: any, status: number) => void = (() => { })) {
     console.log(`${cmd} ${args.join(" ")}`);
     // TODO (weswig): Update child_process types to add windowsVerbatimArguments to the type definition
     const subshellFlag = isWin ? "/c" : "-c";
@@ -116,12 +116,12 @@ const es2015LibrarySources = [
 ];
 
 const es2015LibrarySourceMap = es2015LibrarySources.map(function(source) {
-   return  { target: "lib." + source, sources: ["header.d.ts", source] };
+    return { target: "lib." + source, sources: ["header.d.ts", source] };
 });
 
-const es2016LibrarySource = [ "es2016.array.include.d.ts" ];
+const es2016LibrarySource = ["es2016.array.include.d.ts"];
 
-const es2016LibrarySourceMap = es2016LibrarySource.map(function (source) {
+const es2016LibrarySourceMap = es2016LibrarySource.map(function(source) {
     return { target: "lib." + source, sources: ["header.d.ts", source] };
 });
 
@@ -130,38 +130,38 @@ const es2017LibrarySource = [
     "es2017.sharedmemory.d.ts"
 ];
 
-const es2017LibrarySourceMap = es2017LibrarySource.map(function (source) {
+const es2017LibrarySourceMap = es2017LibrarySource.map(function(source) {
     return { target: "lib." + source, sources: ["header.d.ts", source] };
 });
 
 const hostsLibrarySources = ["dom.generated.d.ts", "webworker.importscripts.d.ts", "scripthost.d.ts"];
 
 const librarySourceMap = [
-        // Host library
-        { target: "lib.dom.d.ts", sources: ["header.d.ts", "dom.generated.d.ts"] },
-        { target: "lib.dom.iterable.d.ts", sources: ["header.d.ts", "dom.iterable.d.ts"] },
-        { target: "lib.webworker.d.ts", sources: ["header.d.ts", "webworker.generated.d.ts"] },
-        { target: "lib.scripthost.d.ts", sources: ["header.d.ts", "scripthost.d.ts"] },
-
-        // JavaScript library
-        { target: "lib.es5.d.ts", sources: ["header.d.ts", "es5.d.ts"] },
-        { target: "lib.es2015.d.ts", sources: ["header.d.ts", "es2015.d.ts"] },
-        { target: "lib.es2016.d.ts", sources: ["header.d.ts", "es2016.d.ts"] },
-        { target: "lib.es2017.d.ts", sources: ["header.d.ts", "es2017.d.ts"] },
-
-        // JavaScript + all host library
-        { target: "lib.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(hostsLibrarySources) },
-        { target: "lib.es6.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(es2015LibrarySources, hostsLibrarySources, "dom.iterable.d.ts") }
+    // Host library
+    { target: "lib.dom.d.ts", sources: ["header.d.ts", "dom.generated.d.ts"] },
+    { target: "lib.dom.iterable.d.ts", sources: ["header.d.ts", "dom.iterable.d.ts"] },
+    { target: "lib.webworker.d.ts", sources: ["header.d.ts", "webworker.generated.d.ts"] },
+    { target: "lib.scripthost.d.ts", sources: ["header.d.ts", "scripthost.d.ts"] },
+
+    // JavaScript library
+    { target: "lib.es5.d.ts", sources: ["header.d.ts", "es5.d.ts"] },
+    { target: "lib.es2015.d.ts", sources: ["header.d.ts", "es2015.d.ts"] },
+    { target: "lib.es2016.d.ts", sources: ["header.d.ts", "es2016.d.ts"] },
+    { target: "lib.es2017.d.ts", sources: ["header.d.ts", "es2017.d.ts"] },
+
+    // JavaScript + all host library
+    { target: "lib.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(hostsLibrarySources) },
+    { target: "lib.es6.d.ts", sources: ["header.d.ts", "es5.d.ts"].concat(es2015LibrarySources, hostsLibrarySources, "dom.iterable.d.ts") }
 ].concat(es2015LibrarySourceMap, es2016LibrarySourceMap, es2017LibrarySourceMap);
 
-const libraryTargets = librarySourceMap.map(function (f) {
+const libraryTargets = librarySourceMap.map(function(f) {
     return path.join(builtLocalDirectory, f.target);
 });
 
 for (const i in libraryTargets) {
     const entry = librarySourceMap[i];
     const target = libraryTargets[i];
-    const sources = [copyright].concat(entry.sources.map(function (s) {
+    const sources = [copyright].concat(entry.sources.map(function(s) {
         return path.join(libraryDirectory, s);
     }));
     gulp.task(target, false, [], function() {
@@ -391,7 +391,7 @@ gulp.task(servicesFile, false, ["lib", "generate-diagnostics"], () => {
         .pipe(sourcemaps.init())
         .pipe(tsc(servicesProject));
     const completedJs = js.pipe(prependCopyright())
-            .pipe(sourcemaps.write("."));
+        .pipe(sourcemaps.write("."));
     const completedDts = dts.pipe(prependCopyright(/*outputCopyright*/true))
         .pipe(insert.transform((contents, file) => {
             file.path = standaloneDefinitionsFile;
@@ -434,17 +434,17 @@ const tsserverLibraryDefinitionFile = path.join(builtLocalDirectory, "tsserverli
 
 gulp.task(tsserverLibraryFile, false, [servicesFile], (done) => {
     const serverLibraryProject = tsc.createProject("src/server/tsconfig.library.json", getCompilerSettings({}, /*useBuiltCompiler*/ true));
-    const {js, dts}: {js: NodeJS.ReadableStream, dts: NodeJS.ReadableStream} = serverLibraryProject.src()
+    const {js, dts}: { js: NodeJS.ReadableStream, dts: NodeJS.ReadableStream } = serverLibraryProject.src()
         .pipe(sourcemaps.init())
         .pipe(newer(tsserverLibraryFile))
         .pipe(tsc(serverLibraryProject));
 
     return merge2([
         js.pipe(prependCopyright())
-          .pipe(sourcemaps.write("."))
-          .pipe(gulp.dest(builtLocalDirectory)),
+            .pipe(sourcemaps.write("."))
+            .pipe(gulp.dest(builtLocalDirectory)),
         dts.pipe(prependCopyright())
-        .pipe(gulp.dest(builtLocalDirectory))
+            .pipe(gulp.dest(builtLocalDirectory))
     ]);
 });
 
@@ -476,7 +476,7 @@ gulp.task(specMd, false, [word2mdJs], (done) => {
     const specMDFullPath = path.resolve(specMd);
     const cmd = "cscript //nologo " + word2mdJs + " \"" + specWordFullPath + "\" " + "\"" + specMDFullPath + "\"";
     console.log(cmd);
-    cp.exec(cmd, function () {
+    cp.exec(cmd, function() {
         done();
     });
 });
@@ -492,12 +492,12 @@ gulp.task("dontUseDebugMode", false, [], (done) => { useDebugMode = false; done(
 
 gulp.task("VerifyLKG", false, [], () => {
     const expectedFiles = [builtLocalCompiler, servicesFile, serverFile, nodePackageFile, nodeDefinitionsFile, standaloneDefinitionsFile, tsserverLibraryFile, tsserverLibraryDefinitionFile].concat(libraryTargets);
-    const missingFiles = expectedFiles.filter(function (f) {
+    const missingFiles = expectedFiles.filter(function(f) {
         return !fs.existsSync(f);
     });
     if (missingFiles.length > 0) {
         throw new Error("Cannot replace the LKG unless all built targets are present in directory " + builtLocalDirectory +
-                    ". The following files are missing:\n" + missingFiles.join("\n"));
+            ". The following files are missing:\n" + missingFiles.join("\n"));
     }
     // Copy all the targets into the LKG directory
     return gulp.src(expectedFiles).pipe(gulp.dest(LKGDirectory));
@@ -627,7 +627,7 @@ function runConsoleTests(defaultReporter: string, runInParallel: boolean, done:
             }
             args.push(run);
             setNodeEnvToDevelopment();
-            runTestsInParallel(taskConfigsFolder, run, { testTimeout: testTimeout, noColors: colors === " --no-colors " }, function (err) {
+            runTestsInParallel(taskConfigsFolder, run, { testTimeout: testTimeout, noColors: colors === " --no-colors " }, function(err) {
                 // last worker clean everything and runs linter in case if there were no errors
                 del(taskConfigsFolder).then(() => {
                     if (!err) {
@@ -679,7 +679,7 @@ gulp.task("runtests",
     ["build-rules", "tests"],
     (done) => {
         runConsoleTests("mocha-fivemat-progress-reporter", /*runInParallel*/ false, done);
-});
+    });
 
 const nodeServerOutFile = "tests/webTestServer.js";
 const nodeServerInFile = "tests/webTestServer.ts";
@@ -812,31 +812,38 @@ gulp.task("diff-rwc", "Diffs the RWC baselines using the diff tool specified by
 });
 
 
-gulp.task("baseline-accept", "Makes the most recent test results the new baseline, overwriting the old baseline", (done) => {
-    const softAccept = cmdLineOptions["soft"];
-    if (!softAccept) {
-        del(refBaseline).then(() => {
-            fs.renameSync(localBaseline, refBaseline);
-            done();
-        }, done);
-    }
-    else {
-        gulp.src(localBaseline)
-          .pipe(gulp.dest(refBaseline))
-          .on("end", () => {
-              del(path.join(refBaseline, "local")).then(() => done(), done);
-          });
-    }
+const deleteEnding = '.delete';
+gulp.task("baseline-accept", "Makes the most recent test results the new baseline, overwriting the old baseline", () => {
+    return baselineAccept("");
 });
+
+function baselineAccept(subfolder = "") {
+    return merge2(baselineCopy(subfolder), baselineDelete(subfolder));
+}
+
+function baselineCopy(subfolder = "") {
+    return gulp.src([`tests/baselines/local/${subfolder}/**`, `!tests/baselines/local/${subfolder}/**/*.delete`])
+        .pipe(gulp.dest(refBaseline));
+}
+
+function baselineDelete(subfolder = "") {
+    return gulp.src(['tests/baselines/local/**/*.delete'])
+        .pipe(insert.transform((content, fileObj) => {
+            const target = path.join(refBaseline, fileObj.relative.substr(0, fileObj.relative.length - '.delete'.length));
+            console.log(target);
+            del.sync(target);
+            del.sync(fileObj.path);
+            return '';
+        }));
+}
+
 gulp.task("baseline-accept-rwc", "Makes the most recent rwc test results the new baseline, overwriting the old baseline", () => {
-    return del(refRwcBaseline).then(() => {
-        fs.renameSync(localRwcBaseline, refRwcBaseline);
-    });
+    return baselineAccept("rwc");
 });
+
+
 gulp.task("baseline-accept-test262", "Makes the most recent test262 test results the new baseline, overwriting the old baseline", () => {
-    return del(refTest262Baseline).then(() => {
-        fs.renameSync(localTest262Baseline, refTest262Baseline);
-    });
+    return baselineAccept("test262");
 });
 
 

Jakefile.js

@@ -1,3 +1,4 @@
+"use strict";
 // This file contains the build logic for the public repo
 
 var fs = require("fs");
@@ -898,16 +899,16 @@ task("tests-debug", ["setDebugMode", "tests"]);
 // Makes the test results the new baseline
 desc("Makes the most recent test results the new baseline, overwriting the old baseline");
 task("baseline-accept", function(hardOrSoft) {
-    if (!hardOrSoft || hardOrSoft === "hard") {
-        jake.rmRf(refBaseline);
-        fs.renameSync(localBaseline, refBaseline);
-    }
-    else if (hardOrSoft === "soft") {
-        var files = jake.readdirR(localBaseline);
-        for (var i in files) {
+    var files = jake.readdirR(localBaseline);
+    var deleteEnding = '.delete';
+    for (var i in files) {
+        if (files[i].substr(files[i].length - deleteEnding.length) === deleteEnding) {
+            var filename = path.basename(files[i]);
+            filename = filename.substr(0, filename.length - deleteEnding.length);
+            fs.unlink(path.join(refBaseline, filename));
+        } else {
             jake.cpR(files[i], refBaseline);
         }
-        jake.rmRf(path.join(refBaseline, "local"));
     }
 });
 

package.json

@@ -69,6 +69,7 @@
         "mkdirp": "latest",
         "mocha": "latest",
         "mocha-fivemat-progress-reporter": "latest",
+        "q": "latest",
         "run-sequence": "latest",
         "sorcery": "latest",
         "through2": "latest",

scripts/types/ambient.d.ts

@@ -10,7 +10,7 @@ declare module "gulp-insert" {
     export function append(text: string | Buffer): NodeJS.ReadWriteStream;
     export function prepend(text: string | Buffer): NodeJS.ReadWriteStream;
     export function wrap(text: string | Buffer, tail: string | Buffer): NodeJS.ReadWriteStream;
-    export function transform(cb: (contents: string, file: {path: string}) => string): NodeJS.ReadWriteStream; // file is a vinyl file
+    export function transform(cb: (contents: string, file: {path: string, relative: string}) => string): NodeJS.ReadWriteStream; // file is a vinyl file
 }
 
 declare module "into-stream" {

src/harness/harness.ts

@@ -1569,6 +1569,7 @@ namespace Harness {
 
     /** Support class for baseline files */
     export namespace Baseline {
+        const NoContent = "<no content>";
 
         export interface BaselineOptions {
             Subfolder?: string;
@@ -1635,14 +1636,6 @@ namespace Harness {
                 throw new Error("The generated content was \"undefined\". Return \"null\" if no baselining is required.\"");
             }
 
-            // Store the content in the 'local' folder so we
-            // can accept it later (manually)
-            /* tslint:disable:no-null-keyword */
-            if (actual !== null) {
-            /* tslint:enable:no-null-keyword */
-                IO.writeFile(actualFileName, actual);
-            }
-
             return actual;
         }
 
@@ -1659,7 +1652,7 @@ namespace Harness {
             /* tslint:disable:no-null-keyword */
             if (actual === null) {
             /* tslint:enable:no-null-keyword */
-                actual = "<no content>";
+                actual = NoContent;
             }
 
             let expected = "<no content>";
@@ -1672,7 +1665,13 @@ namespace Harness {
 
         function writeComparison(expected: string, actual: string, relativeFileName: string, actualFileName: string, descriptionForDescribe: string) {
             const encoded_actual = Utils.encodeString(actual);
-            if (expected != encoded_actual) {
+            if (expected !== encoded_actual) {
+                if (actual === NoContent) {
+                    IO.writeFile(relativeFileName + '.delete', '');
+                }
+                else {
+                    IO.writeFile(relativeFileName, actual);
+                }
                 // Overwrite & issue error
                 const errMsg = "The baseline file " + relativeFileName + " has changed.";
                 throw new Error(errMsg);