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gulpfile.js
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gulpfile.js
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/* eslint-disable require-jsdoc */
const gulp = require("gulp");
const eslint = require("gulp-eslint");
const jest = require("jest-cli");
const rename = require("gulp-rename");
const rollup = require("rollup");
const sourcemaps = require("gulp-sourcemaps");
const uglify = require("gulp-uglify");
const jestBaseConfig = require("./jest.config");
const pkg = require("./package.json");
const intro = [
"/**",
"* @overview " + pkg.name + " - " + pkg.description,
"* @author " + pkg.author.name + " <" + pkg.author.email + ">",
"* @version " + pkg.version,
"* @module lamb",
"* @license " + pkg.license,
"* @preserve",
"*/"
].join("\n");
/* env */
gulp.task("set-test-env", cb => {
process.env.NODE_ENV = "test";
return cb();
});
/* build */
gulp.task("build", () => rollup
.rollup({ input: "src/index.js" })
.then(bundle => bundle.write({
banner: intro,
exports: "named",
file: "dist/lamb.js",
format: "umd",
freeze: false,
name: "lamb",
sourcemap: false,
strict: true
}))
);
gulp.task("minify", gulp.series("build", () => gulp.src("dist/lamb.js")
.pipe(sourcemaps.init())
.pipe(uglify({ output: { comments: "some" } }))
.pipe(rename({ extname: ".min.js" }))
.pipe(sourcemaps.write("."))
.pipe(gulp.dest("dist"))
));
/* lint */
const lintWith = settings => () => gulp.src(settings.inputs)
.pipe(eslint(settings.configPath))
.pipe(eslint.format())
.pipe(eslint.failAfterError());
gulp.task("lint:code", lintWith({
configPath: ".eslintrc.json",
inputs: ["./src/**/*.js", "!./src/**/__{tests,mocks}__/**"]
}));
gulp.task("lint:tests", lintWith({
configPath: ".eslintrc.test.json",
inputs: ["./*.js", "./src/**/__{tests,mocks}__/**/*.js"]
}));
gulp.task("lint", gulp.series("lint:code", "lint:tests"));
/* test */
const testWith = extraSettings => gulp.series(
"set-test-env",
() => jest.runCLI(
Object.assign({}, jestBaseConfig, extraSettings),
[jestBaseConfig.rootDir]
).then(({ results }) => { // eslint-disable-line consistent-return
if (!results.success) {
const message = results.numFailedTests || results.numFailedTestSuites
? "Tests failed"
: "Coverage threshold not met";
return Promise.reject(new Error(message));
}
})
);
gulp.task("test", testWith({}));
gulp.task("test:coverage", testWith({ collectCoverage: true }));
gulp.task("test:verbose", testWith({ verbose: true }));
gulp.task("test:travis", testWith({ collectCoverage: true, maxWorkers: 4 }));
gulp.task("test:watch", testWith({ watch: true }));
/* travis */
gulp.task("travis", gulp.series("lint", "test:travis"));
/* default */
gulp.task("default", gulp.series("lint", "test:coverage"));