lemur/gulp/build.js

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'use strict';
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var gulp = require('gulp'),
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minifycss = require('gulp-minify-css'),
concat = require('gulp-concat'),
less = require('gulp-less'),
gulpif = require('gulp-if'),
gutil = require('gulp-util'),
foreach = require('gulp-foreach'),
path = require('path'),
merge = require('merge-stream'),
del = require('del'),
size = require('gulp-size'),
plumber = require('gulp-plumber'),
autoprefixer = require('gulp-autoprefixer'),
jshint = require('gulp-jshint'),
inject = require('gulp-inject'),
cache = require('gulp-cache'),
ngAnnotate = require('gulp-ng-annotate'),
csso = require('gulp-csso'),
useref = require('gulp-useref'),
filter = require('gulp-filter'),
rev = require('gulp-rev'),
imagemin = require('gulp-imagemin'),
minifyHtml = require('gulp-minify-html'),
bowerFiles = require('main-bower-files'),
karma = require('karma'),
replace = require('gulp-replace'),
argv = require('yargs').argv;
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// http://stackoverflow.com/questions/1144783/replacing-all-occurrences-of-a-string-in-javascript
function escapeRegExp(string) {
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return string.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, '\\$1');
}
function replaceAll(string, find, replace) {
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return string.replace(new RegExp(escapeRegExp(find), 'g'), replace);
}
function stringSrc(filename, string) {
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let src = require('stream').Readable({objectMode: true});
src._read = function () {
this.push(new gutil.File({cwd: '', base: '', path: filename, contents: Buffer.from(string)}));
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this.push(null);
};
return src;
}
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gulp.task('clean', function (done) {
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del(['.tmp', 'lemur/static/dist'], done);
done();
});
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gulp.task('default', gulp.series(['clean'], function () {
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gulp.start('fonts', 'styles');
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}));
gulp.task('test', function (done) {
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new karma.Server({
configFile: __dirname + '/karma.conf.js',
singleRun: true
}, function (err) {
if (err === 0) {
done();
} else {
// if karma server failed to start raise error
done(new gutil.PluginError('karma', {
message: 'Karma Tests failed'
}));
}
}).start();
});
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gulp.task('dev:fonts', function () {
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let fileList = [
'bower_components/bootstrap/dist/fonts/*',
'bower_components/fontawesome/fonts/*'
];
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return gulp.src(fileList)
.pipe(gulp.dest('.tmp/fonts')); // returns a stream making it async
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});
gulp.task('dev:styles', function () {
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let baseContent = '@import "bower_components/bootstrap/less/bootstrap.less";@import "bower_components/bootswatch/$theme$/variables.less";@import "bower_components/bootswatch/$theme$/bootswatch.less";@import "bower_components/bootstrap/less/utilities.less";';
let isBootswatchFile = function (file) {
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let suffix = 'bootswatch.less';
return file.path.indexOf(suffix, file.path.length - suffix.length) !== -1;
};
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let isBootstrapFile = function (file) {
let suffix = 'bootstrap-',
fileName = path.basename(file.path);
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return fileName.indexOf(suffix) === 0;
};
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let fileList = [
'bower_components/bootswatch/sandstone/bootswatch.less',
'bower_components/fontawesome/css/font-awesome.css',
'bower_components/angular-chart.js/dist/angular-chart.css',
'bower_components/angular-loading-bar/src/loading-bar.css',
'bower_components/angular-ui-switch/angular-ui-switch.css',
'bower_components/angular-wizard/dist/angular-wizard.css',
'bower_components/ng-table/dist/ng-table.css',
'bower_components/angularjs-toaster/toaster.css',
'bower_components/angular-ui-select/dist/select.css',
'lemur/static/app/styles/lemur.css'
];
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return gulp.src(fileList)
.pipe(gulpif(isBootswatchFile, foreach(function (stream, file) {
let themeName = path.basename(path.dirname(file.path)),
content = replaceAll(baseContent, '$theme$', themeName);
return stringSrc('bootstrap-' + themeName + '.less', content);
})))
.pipe(less())
.pipe(gulpif(isBootstrapFile, foreach(function (stream, file) {
let fileName = path.basename(file.path),
themeName = fileName.substring(fileName.indexOf('-') + 1, fileName.indexOf('.'));
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// http://stackoverflow.com/questions/21719833/gulp-how-to-add-src-files-in-the-middle-of-a-pipe
// https://github.com/gulpjs/gulp/blob/master/docs/recipes/using-multiple-sources-in-one-task.md
return merge(stream, gulp.src(['.tmp/styles/font-awesome.css', '.tmp/styles/lemur.css'], {allowEmpty: true}))
.pipe(concat('style-' + themeName + '.css'));
})))
.pipe(plumber())
.pipe(concat('styles.css'))
.pipe(minifycss())
.pipe(autoprefixer('last 1 version'))
.pipe(gulp.dest('.tmp/styles'))
.pipe(size());
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});
gulp.task('dev:scripts', function () {
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return gulp.src(['lemur/static/app/angular/**/*.js'])
.pipe(jshint())
.pipe(jshint.reporter('jshint-stylish'))
.pipe(size());
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});
gulp.task('build:extras', function () {
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return gulp.src(['lemur/static/app/*.*', '!lemur/static/app/*.html'])
.pipe(gulp.dest('lemur/static/dist'));
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});
function injectHtml(isDev) {
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return gulp.src('lemur/static/app/index.html')
.pipe(
inject(gulp.src(bowerFiles({base: 'app'})), {
starttag: '<!-- inject:bower:{{ext}} -->',
addRootSlash: false,
ignorePath: isDev ? ['lemur/static/app/', '.tmp/'] : null
})
)
.pipe(inject(gulp.src(['lemur/static/app/angular/**/*.js']), {
starttag: '<!-- inject:{{ext}} -->',
addRootSlash: false,
ignorePath: isDev ? ['lemur/static/app/', '.tmp/'] : null
}))
.pipe(inject(gulp.src(['.tmp/styles/**/*.css']), {
starttag: '<!-- inject:{{ext}} -->',
addRootSlash: false,
ignorePath: isDev ? ['lemur/static/app/', '.tmp/'] : null
}))
.pipe(
gulpif(!isDev,
inject(gulp.src('lemur/static/dist/ngviews/ngviews.min.js', {allowEmpty: true}), {
starttag: '<!-- inject:ngviews -->',
addRootSlash: false
})
)
).pipe(gulp.dest('.tmp/'));
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}
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gulp.task('dev:inject', gulp.series(['dev:styles', 'dev:scripts'], function () {
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return injectHtml(true);
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}));
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gulp.task('build:ngviews', function () {
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return gulp.src(['lemur/static/app/angular/**/*.html'])
.pipe(minifyHtml({
empty: true,
spare: true,
quotes: true
}))
.pipe(gulp.dest('lemur/static/dist/angular'))
.pipe(size());
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});
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gulp.task('build:inject', gulp.series(['dev:styles', 'dev:scripts', 'build:ngviews'], function () {
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return injectHtml(false);
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}));
gulp.task('build:html', gulp.series(['build:inject'], function () {
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let jsFilter = filter(['**/*.js'], {'restore': true});
let cssFilter = filter(['**/*.css'], {'restore': true});
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return gulp.src('.tmp/index.html')
.pipe(jsFilter)
.pipe(ngAnnotate())
.pipe(jsFilter.restore)
.pipe(cssFilter)
.pipe(csso())
.pipe(cssFilter.restore)
.pipe(useref())
.pipe(gulp.dest('lemur/static/dist'))
.pipe(size());
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}));
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gulp.task('build:fonts', gulp.series(['dev:fonts'], function () {
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return gulp.src('.tmp/fonts/**/*')
.pipe(gulp.dest('lemur/static/dist/fonts'));
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}));
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gulp.task('build:images', function () {
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return gulp.src('lemur/static/app/images/**/*')
.pipe(cache(imagemin({
optimizationLevel: 3,
progressive: true,
interlaced: true
})))
.pipe(gulp.dest('lemur/static/dist/images'))
.pipe(size());
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});
gulp.task('package:strip', function () {
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return gulp.src(['lemur/static/dist/scripts/main*'])
.pipe(replace('http:\/\/localhost:3000', ''))
.pipe(replace('http:\/\/localhost:8000', ''))
.pipe(useref())
.pipe(gulp.dest('lemur/static/dist/scripts'))
.pipe(size());
});
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gulp.task('addUrlContextPath:revision', function () {
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return gulp.src(['lemur/static/dist/**/*.css', 'lemur/static/dist/**/*.js'])
.pipe(rev())
.pipe(gulp.dest('lemur/static/dist'))
.pipe(rev.manifest())
.pipe(gulp.dest('lemur/static/dist'));
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});
gulp.task('addUrlContextPath:revreplace', gulp.series(['addUrlContextPath:revision'], function () {
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return gulp.src('lemur/static/dist/index.html')
.pipe(gulp.dest('lemur/static/dist'));
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}));
gulp.task('addUrlContextPath', gulp.series(['addUrlContextPath:revreplace'], function () {
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let urlContextPathExists = !!argv.urlContextPath;
return gulp.src(['lemur/static/dist/scripts/main*.js', 'lemur/static/dist/angular/**/*.html'])
.pipe(gulpif(urlContextPathExists, replace('api/', argv.urlContextPath + '/api/')))
.pipe(gulpif(urlContextPathExists, replace('/angular/', '/' + argv.urlContextPath + '/angular/')))
.pipe(gulp.dest(function (file) {
return file.base;
}));
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}));
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gulp.task('build', gulp.series(['build:images', 'build:fonts', 'build:html', 'build:extras']));
gulp.task('package', gulp.series(['addUrlContextPath', 'package:strip']));