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gulpfile.js
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gulpfile.js
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'use strict';
var _ = require('lodash');
var autoprefixer = require('autoprefixer');
var browserify = require('browserify');
var buffer = require('vinyl-buffer');
var bundleLogger = require('./gulp/bundle-logger.js');
var color = require('postcss-color-function');
var gulp = require('gulp');
var path = require('path');
var precss = require('precss');
var reporter = require('postcss-reporter');
var rimraf = require('rimraf');
var through2 = require('through2');
var watchify = require('watchify');
var plugins = require('gulp-load-plugins')();
var paths = {
js: [
'./static/js/**.js',
'./**/static/js/**.js'
],
jsEntries: [
'./static/js/*.js',
'./**/static/js/*.js'
],
css: [
'./static/css/**/*.css',
'!./static/css/**/_*.css'
],
cssAll: [
'./static/css/**/*.css'
],
python: [
'**/*.py',
'!**/migrations/*.py',
'!./scripts/**/*.py',
'!./tmp/**/*.py',
'!./node_modules/**/*.py'
],
select2Files: [
'./node_modules/select2/dist/css/select2.min.css'
],
bootstrapFiles: [
'./node_modules/bootstrap/dist/css/bootstrap.css',
'./node_modules/bootstrap/dist/css/bootstrap.css.map',
'./node_modules/bootstrap/dist/css/bootstrap-theme.css',
'./node_modules/bootstrap/dist/css/bootstrap-theme.css.map'
],
webshimFiles: [
'./node_modules/webshim/js-webshim/minified/shims/**/*'
]
};
// Clean up files
gulp.task('clean', function (cb) {
rimraf('./build', cb);
});
// Lint JavaScript code
gulp.task('lint-js-eslint', function () {
return gulp.src(paths.js)
.pipe(plugins.eslint({
useEslintrc: true,
rulePaths: [
path.join(process.env.HOME, '.eslint')
]
}))
.pipe(plugins.eslint.format());
});
gulp.task('lint-js-jscs', function () {
return gulp.src(paths.js)
.pipe(plugins.jscs());
});
gulp.task('lint-js', gulp.parallel(['lint-js-eslint', 'lint-js-jscs']));
// Lint Python code
gulp.task('lint-python', function () {
var shellOptions = {ignoreErrors: true};
return gulp.src(paths.python)
.pipe(plugins.shell([
'flake8 <%= file.path %> | awk \'$0="flake8: "$0\''
], shellOptions))
.pipe(plugins.shell([
'pylint --rcfile=.pylintrc -r no -f colorized <%= file.path %> ' +
'--msg-template "{C}: {path}:{line}:{column} {msg} ({symbol})" ' +
'| awk \'$0="pylint: "$0\''
], shellOptions))
.pipe(plugins.shell([
'pydocstyle <%= file.path %> 2>&1 | awk \'$0="pydocstyle: "$0\''
], shellOptions));
});
gulp.task('lint', gulp.parallel(['lint-js', 'lint-python']));
gulp.task('bootstrap-files', function () {
return gulp.src(paths.bootstrapFiles)
.pipe(gulp.dest('./build/vendor'));
});
gulp.task('select2-files', function () {
return gulp.src(paths.select2Files)
.pipe(gulp.dest('./build/vendor'));
});
gulp.task('webshim-files', function () {
return gulp.src(paths.webshimFiles)
.pipe(gulp.dest('./build/vendor/shims'));
});
// Collect Bootstrap and other frontend files
gulp.task('frontend-files', gulp.parallel([
'bootstrap-files',
'select2-files',
'webshim-files'
]));
function browserifyTask(options) {
options = options || {};
function bundleEntry(cbUpdate) {
return through2.obj(function (file, enc, next) {
var browserifyOptions = {debug: true};
if (options.development) {
// Add watchify args
_.assignIn(browserifyOptions, watchify.args);
}
// Log when bundling starts
bundleLogger.start(file.path);
var bundler = browserify(file.path, browserifyOptions);
if (options.development) {
// Wrap with watchify and rebundle on changes
bundler = watchify(bundler);
// Rebundle on update
bundler.on('update', _.partial(cbUpdate, file.path));
bundleLogger.watch(file.path);
}
bundler.bundle(function (err, res) {
file.contents = res;
bundleLogger.end(file.path);
next(err, file);
});
});
}
function bundle(files) {
return gulp.src(files)
.pipe(bundleEntry(bundle))
.pipe(buffer())
.pipe(plugins.sourcemaps.init({loadMaps: true}))
.pipe(plugins.uglify())
.on('error', function (err) {
console.error(err.toString());
process.exit(1);
})
.pipe(plugins.sourcemaps.write('./'))
.pipe(gulp.dest('./build/js'));
}
return bundle(paths.jsEntries);
}
// Browserify all of our JavaScript entry points
gulp.task('browserify', gulp.parallel(['frontend-files'], function () {
return browserifyTask();
}));
// Watchify all of our JavaScript entry points
gulp.task('watchify', gulp.parallel(['frontend-files'], function () {
return browserifyTask({development: true});
}));
gulp.task('postcss', function () {
return gulp.src(paths.css)
.pipe(plugins.postcss([
precss(),
color(),
autoprefixer({browsers: ['last 2 versions']}),
reporter()
]))
.pipe(plugins.cssnano())
.pipe(gulp.dest('./build/css'));
});
// Run browserify on JS changes, postcss on css changes
gulp.task('watch', gulp.parallel(['frontend-files'], function () {
return gulp.watch(paths.cssAll, gulp.parallel(['postcss']));
}));
// Just build the files in ./build
gulp.task('build', gulp.parallel(['frontend-files', 'postcss', 'browserify']));
// Build and watch
gulp.task('default', gulp.parallel([
'frontend-files',
'postcss',
'watch',
'watchify'
]));