var gulp = require('gulp'),
concat = require('gulp-concat'),
uglify = require('gulp-uglify'),
util = require('gulp-util'),
jshint = require('gulp-jshint'),
size = require('gulp-size'),
connect = require('gulp-connect'),
replace = require('gulp-replace'),
htmlv = require('gulp-html-validator'),
inquirer = require('inquirer'),
semver = require('semver'),
exec = require('child_process').exec,
fs = require('fs'),
package = require('./package.json'),
bower = require('./bower.json');
var srcDir = './src/';
/*
* Usage : gulp build --types=Bar,Line,Doughnut
* Output: - A built Chart.js file with Core and types Bar, Line and Doughnut concatenated together
* - A minified version of this code, in Chart.min.js
*/
gulp.task('build', function(){
// Default to all of the chart types, with Chart.Core first
var srcFiles = [FileName('Core')],
isCustom = !!(util.env.types),
outputDir = (isCustom) ? 'custom' : '.';
if (isCustom){
util.env.types.split(',').forEach(function(type){ return srcFiles.push(FileName(type))});
}
else{
// Seems gulp-concat remove duplicates - nice!
// So we can use this to sort out dependency order - aka include Core first!
srcFiles.push(srcDir+'*');
}
return gulp.src(srcFiles)
.pipe(concat('Chart.js'))
.pipe(replace('{{ version }}', package.version))
.pipe(gulp.dest(outputDir))
.pipe(uglify({preserveComments:'some'}))
.pipe(concat('Chart.min.js'))
.pipe(gulp.dest(outputDir));
function FileName(moduleName){
return srcDir+'Chart.'+moduleName+'.js';
};
});
/*
* Usage : gulp bump
* Prompts: Version increment to bump
* Output: - New version number written into package.json & bower.json
*/
gulp.task('bump', function(complete){
util.log('Current version:', util.colors.cyan(package.version));
var choices = ['major', 'premajor', 'minor', 'preminor', 'patch', 'prepatch', 'prerelease'].map(function(versionType){
return versionType + ' (v' + semver.inc(package.version, versionType) + ')';
});
inquirer.prompt({
type: 'list',
name: 'version',
message: 'What version update would you like?',
choices: choices
}, function(res){
var increment = res.version.split(' ')[0],
newVersion = semver.inc(package.version, increment);
// Set the new versions into the bower/package object
package.version = newVersion;
bower.version = newVersion;
// Write these to their own files, then build the output
fs.writeFileSync('package.json', JSON.stringify(package, null, 2));
fs.writeFileSync('bower.json', JSON.stringify(bower, null, 2));
complete();
});
});
gulp.task('release', ['build'], function(){
exec('git tag -a v' + package.version);
});
gulp.task('jshint', function(){
return gulp.src(srcDir + '*.js')
.pipe(jshint())
.pipe(jshint.reporter('default'));
});
gulp.task('valid', function(){
return gulp.src('samples/*.html')
.pipe(htmlv());
});
gulp.task('library-size', function(){
return gulp.src('Chart.min.js')
.pipe(size({
gzip: true
}));
});
gulp.task('module-sizes', function(){
return gulp.src(srcDir + '*.js')
.pipe(uglify({preserveComments:'some'}))
.pipe(size({
showFiles: true,
gzip: true
}))
});
gulp.task('watch', function(){
gulp.watch('./src/*', ['build']);
});
gulp.task('test', ['jshint', 'valid']);
gulp.task('size', ['library-size', 'module-sizes']);
gulp.task('default', ['build', 'watch']);
gulp.task('server', function(){
connect.server({
port: 8000
});
});
// Convenience task for opening the project straight from the command line
gulp.task('_open', function(){
exec('open http://localhost:8000');
exec('subl .');
});
gulp.task('dev', ['server', 'default']);
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