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gulpfile.js
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gulpfile.js
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/* global require */
var gulp = require('gulp');
var eslint = require('gulp-eslint');
var gulpIf = require('gulp-if');
var rename = require('gulp-rename');
var replace = require('gulp-replace');
var uglify = require('gulp-uglify');
var merge = require('merge2');
var pkg = require('./package.json');
// Assets for the project
var Assets = {
main: './jquery-bootstrap-purr.js',
minified: './jquery-bootstrap-purr.min.js',
package: './package.json',
readme: './README.md',
source: './',
};
// See the uglify documentation for more details
var _uglifySettings = {
compress: {
comparisons: true,
conditionals: true,
/* jscs: disable */
dead_code: true,
drop_console: true,
/* jscs: enable */
unsafe: true,
unused: true,
},
};
// Check the main js file(s) meets the following standards outlined in .eslintrc
gulp.task('eslint', function esLintTask() {
// Has ESLint fixed the file contents?
function isFixed(file) {
return file.eslint !== undefined && file.eslint !== null && file.eslint.fixed;
}
return gulp.src(Assets.main)
.pipe(eslint({
fix: true,
useEslintrc: '.eslintrc',
}))
.pipe(eslint.format())
.pipe(gulpIf(isFixed, gulp.dest(Assets.source)));
});
// Uglify aka minify the main file
gulp.task('uglify', function uglifyTask() {
return gulp.src(Assets.main)
.pipe(uglify(_uglifySettings))
.pipe(rename(Assets.minified))
.pipe(gulp.dest(Assets.source));
});
// Update version numbers based on the main file version comment
gulp.task('version', function versionTask() {
// SemVer matching is done using (?:\d+\.){2}\d+
var reVersion = /(?:(\n\s*\*\s+Version:\s+)(?:\d+\.){2}\d+)/;
var reVersionReadMe = /(?:^#\s+([\w\-]+)\s+-\s+v(?:\d+\.){2}\d+)/;
var streams = merge();
// Update the main js file version number
streams.add(
gulp.src(Assets.main)
.pipe(replace(reVersion, '$1' + pkg.version))
.pipe(gulp.dest(Assets.source))
);
// Update the README.md version number
streams.add(
gulp.src(Assets.readme)
.pipe(replace(reVersionReadMe, '# $1 - v' + pkg.version))
.pipe(gulp.dest(Assets.source))
);
return streams;
});
// Watch for changes to the main file
gulp.task('watch', function watchTask() {
gulp.watch(Assets.main, ['eslint', 'uglify']);
});
// Register the default task
gulp.task('default', ['version', 'eslint', 'uglify']);
// 'gulp eslint' to check the syntax of the main js file(s)
// 'gulp uglify' to uglify the main file
// 'gulp version' to update the version numbers based on the main file version comment