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Ensure that incremental builds work with 'gulp build'. (#5561)

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This commit is contained in:
Logan Smyth 2017-03-28 15:18:12 -07:00 committed by GitHub
parent 4bf8e4d08d
commit d3497348b8
1 changed files with 14 additions and 16 deletions
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30
Gulpfile.js
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@ -10,41 +10,39 @@ const gutil = require("gulp-util");
const gulp = require("gulp");
const path = require("path");
const base = path.join(__dirname, "packages");
const scripts = "./packages/*/src/**/*.js";
let srcEx, libFragment;
if (path.win32 === path) {
srcEx = /(packages\\[^\\]+)\\src\\/;
libFragment = "$1\\lib\\";
} else {
srcEx = new RegExp("(packages/[^/]+)/src/");
libFragment = "$1/lib/";
function swapSrcWithLib(srcPath) {
const parts = srcPath.split(path.sep);
parts[1] = "lib";
return parts.join(path.sep);
}
const mapToDest = function (path) { return path.replace(srcEx, libFragment); };
const dest = "packages";
gulp.task("default", ["build"]);
gulp.task("build", function () {
return gulp.src(scripts)
return gulp.src(scripts, { base: base })
.pipe(plumber({
errorHandler: function (err) {
gutil.log(err.stack);
},
}))
.pipe(newer({ map: mapToDest }))
.pipe(newer({
dest: base,
map: swapSrcWithLib,
}))
.pipe(through.obj(function (file, enc, callback) {
gutil.log("Compiling", "'" + chalk.cyan(file.path) + "'...");
gutil.log("Compiling", "'" + chalk.cyan(file.relative) + "'...");
callback(null, file);
}))
.pipe(babel())
.pipe(through.obj(function (file, enc, callback) {
file._path = file.path;
file.path = mapToDest(file.path);
// Passing 'file.relative' because newer() above uses a relative path and this keeps it consistent.
file.path = path.resolve(file.base, swapSrcWithLib(file.relative));
callback(null, file);
}))
.pipe(gulp.dest(dest));
.pipe(gulp.dest(base));
});
gulp.task("watch", ["build"], function () {