var gulp = require('gulp'),
    tagVersion = require('gulp-tag-version');

// Assuming there's "version: 1.2.3" in package.json,
// tag the last commit as "v1.2.3"
gulp.task('tag', function() {
  return gulp.src(['./package.json']).pipe(tagVersion());
});

// dependencies
var gulp = require('gulp'),
    git = require('gulp-git'),
    bump = require('gulp-bump'),
    filter = require('gulp-filter'),
    tagVersion = require('gulp-tag-version');

/**
 * Bumping version number and tagging the repository with it.
 * Please read http://semver.org/
 *
 * You can use the commands
 *
 *     gulp patch     # makes v0.1.0 → v0.1.1
 *     gulp feature   # makes v0.1.1 → v0.2.0
 *     gulp release   # makes v0.2.1 → v1.0.0
 *
 * To bump the version numbers accordingly after you did a patch,
 * introduced a feature or made a backwards-incompatible release.
 */

function inc(importance) {
    // get all the files to bump version in
    return gulp.src(['./package.json', './bower.json'])
        // bump the version number in those files
        .pipe(bump({type: importance}))
        // save it back to filesystem
        .pipe(gulp.dest('./'))
        // commit the changed version number
        .pipe(git.commit('bumps package version'))

        // read only one file to get the version number
        .pipe(filter('package.json'))
        // **tag it in the repository**
        .pipe(tagVersion());
}

gulp.task('patch', function() { return inc('patch'); })
gulp.task('feature', function() { return inc('minor'); })
gulp.task('release', function() { return inc('major'); })

gulp.task('bump_submodule', function(){
    return gulp.src('./bower.json',  { cwd: './dist' })
        .pipe(bump({type: 'patch'}))
        .pipe(gulp.dest('./',{ cwd: './dist' }))
        .pipe(git.commit('bumps package version',{cwd: './dist'}))
        .pipe(filter('bower.json'))
        .pipe(tagVersion({cwd: './dist'}));
});