Use make -j for parallel build

.travis.yml

@@ -6,48 +6,40 @@ cache:
 
 os: linux
 
-node_js:
-  # We test the latest version on circleci
-  - "11"
-  - "10"
-  - "8"
-  - "6"
-
 env:
   global:
     - PATH=$HOME/.yarn/bin:$PATH
     - JOB=test
 
-before_install:
-  - curl -o- -L https://yarnpkg.com/install.sh | bash
-
-install:
-  # the `make test-ci` script runs this command already
-  - if [ "$JOB" != "test" ] && [ "$JOB" != "lint" ]; then yarn install; fi
-  - if [ "$JOB" = "lint" ]; then make bootstrap; fi
-
+install: skip
 before_script:
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
   - if [ "$TRAVIS_OS_NAME" = "windows" ]; then choco install make; fi
-  - if [ "$JOB" = "babel-parser-flow-tests" ]; then make bootstrap-flow; fi
-  - if [ "$JOB" = "babel-parser-test262-tests" ]; then make bootstrap-test262; fi
 
 script:
-  - if [ "$JOB" = "test" ]; then make test-ci; fi
-  - if [ "$JOB" = "lint" ]; then make lint && make flow; fi
-  - if [ "$JOB" = "babel-parser-flow-tests" ]; then make test-flow-ci; fi
-  - if [ "$JOB" = "babel-parser-test262-tests" ]; then make test-test262-ci; fi
+  - if [ "$JOB" = "test" ]; then make -j test-ci; fi
+  - if [ "$JOB" = "lint" ]; then make -j code-quality-ci; fi
+  - if [ "$JOB" = "babel-parser-flow-tests" ]; then make -j test-flow-ci; fi
+  - if [ "$JOB" = "babel-parser-test262-tests" ]; then make -j test-test262-ci; fi
 
 matrix:
   fast_finish: true
   include:
+    - node_js: "node"
+      env: JOB=lint
+  # We test the latest version on circleci
+    - node_js: "11"
+    - node_js: "10"
+  # Move `windows` build to be the fourth since it is slow
     - os: windows
       node_js: "node"
       env:
       - JOB=test
       # https://travis-ci.community/t/build-doesnt-finish-after-completing-tests/288/9
       - YARN_GPG=no
-    - node_js: "node"
-      env: JOB=lint
+  # Continue node_js matrix
+    - node_js: "8"
+    - node_js: "6"
     - node_js: "node"
       env: JOB=babel-parser-flow-tests
     - node_js: "node"

Gulpfile.js

@@ -11,25 +11,20 @@ const filter = require("gulp-filter");
 const gulp = require("gulp");
 const path = require("path");
 const webpack = require("webpack");
-const merge = require("merge-stream");
 const rollup = require("rollup");
 const rollupBabel = require("rollup-plugin-babel");
 const rollupNodeResolve = require("rollup-plugin-node-resolve");
 const rollupReplace = require("rollup-plugin-replace");
 const { registerStandalonePackageTask } = require("./scripts/gulp-tasks");
 
-const sources = ["codemods", "packages"];
+const defaultSourcesGlob = "./@(codemods|packages)/*/src/**/*.js";
 
 function swapSrcWithLib(srcPath) {
   const parts = srcPath.split(path.sep);
-  parts[1] = "lib";
+  parts[2] = "lib";
   return parts.join(path.sep);
 }
 
-function getGlobFromSource(source) {
-  return `./${source}/*/src/**/*.js`;
-}
-
 function getIndexFromPackage(name) {
   return `${name}/src/index.js`;
 }
@@ -56,32 +51,28 @@ function rename(fn) {
   });
 }
 
-function buildBabel(exclude) {
-  return merge(
-    sources.map(source => {
-      const base = path.join(__dirname, source);
-
-      let stream = gulp.src(getGlobFromSource(source), { base: base });
-
-      if (exclude) {
-        const filters = exclude.map(p => `!**/${p}/**`);
-        filters.unshift("**");
-        stream = stream.pipe(filter(filters));
-      }
-
-      return stream
-        .pipe(errorsLogger())
-        .pipe(newer({ dest: base, map: swapSrcWithLib }))
-        .pipe(compilationLogger())
-        .pipe(babel())
-        .pipe(
-          // Passing 'file.relative' because newer() above uses a relative
-          // path and this keeps it consistent.
-          rename(file => path.resolve(file.base, swapSrcWithLib(file.relative)))
-        )
-        .pipe(gulp.dest(base));
-    })
-  );
+function buildBabel(exclude, sourcesGlob = defaultSourcesGlob) {
+  const base = __dirname;
+
+  let stream = gulp.src(sourcesGlob, { base: __dirname });
+
+  if (exclude) {
+    const filters = exclude.map(p => `!**/${p}/**`);
+    filters.unshift("**");
+    stream = stream.pipe(filter(filters));
+  }
+
+  return stream
+    .pipe(errorsLogger())
+    .pipe(newer({ dest: base, map: swapSrcWithLib }))
+    .pipe(compilationLogger())
+    .pipe(babel())
+    .pipe(
+      // Passing 'file.relative' because newer() above uses a relative
+      // path and this keeps it consistent.
+      rename(file => path.resolve(file.base, swapSrcWithLib(file.relative)))
+    )
+    .pipe(gulp.dest(base));
 }
 
 function buildRollup(packages) {
@@ -118,6 +109,9 @@ const bundles = ["packages/babel-parser"];
 
 gulp.task("build-rollup", () => buildRollup(bundles));
 gulp.task("build-babel", () => buildBabel(/* exclude */ bundles));
+gulp.task("build-babel-types", () =>
+  buildBabel(/* exclude */ bundles, "packages/babel-types/src/**/*.js")
+);
 gulp.task("build", gulp.parallel("build-rollup", "build-babel"));
 
 gulp.task("default", gulp.series("build"));
@@ -128,7 +122,7 @@ gulp.task(
   "watch",
   gulp.series("build-no-bundle", function watch() {
     gulpWatch(
-      sources.map(getGlobFromSource),
+      defaultSourcesGlob,
       { debounceDelay: 200 },
       gulp.task("build-no-bundle")
     );