我有这些任务:
gulp.task('clean-css', function () {
del.sync([
'content/bundles/css.css',
'content/bundles/css.css.bundle',
'content/bundles/css.min.css',
'content/bundles/css.min.css.gz',
'temp/css/common/*.css',
'temp/css/user/*.css',
'temp/css/media/*.css'])
});
gulp.task('make_css_files', ['clean-css'], function () {
gulp.src('content/less/common/*.less').pipe(less()).pipe(gulp.dest('temp/css/common'));
gulp.src('content/less/user/*.less').pipe(less()).pipe(gulp.dest('temp/css/user'));
gulp.src('content/less/media/*.less').pipe(less()).pipe(gulp.dest('temp/css/media'));
});
gulp.task('make_css_bundle', ['make_css_files'], function () {
return gulp.src(['temp/css/common/*.css', 'temp/css/user/*.css', 'temp/css/media/*.css'])
.pipe(minifyCSS())
.pipe(concat('css.min.css'))
.pipe(gulp.dest('content/bundles/'))
.pipe(gzip(gzip_options))
.pipe(gulp.dest('content/bundles/'));
});
当我运行make_css_bundle时,它会运行:
[18:38:04] Using gulpfile C:\H\user\user\Gulpfile.js
[18:38:04] Starting 'clean-css'...
[18:38:04] Finished 'clean-css' after 86 ms
[18:38:04] Starting 'make_css_files'...
[18:38:04] Finished 'make_css_files' after 6.5 ms
[18:38:04] Starting 'make_css_bundle'...
[18:38:04] Finished 'make_css_bundle' after 21 ms
Process terminated with code 0.
然而,似乎干净无序,当我检查时,没有创建缩小的CSS。
当我取出依赖项并手动运行它时,它可以工作。
订购时我遇到了什么问题。我以为它会首先运行依赖项。
答案 0 :(得分:2)
我前一段时间问了similar question。基本上,我们都有this question on what it means to return
from a task的精心复制品;我建议阅读最后一个链接及其链接。
您需要从任务中返回流,以帮助gulp以正确的顺序执行这些操作。由于在第二个任务中有3个不同的流,我建议使用merge-stream
返回所有三个子流中的一个流,合并在一起。 E.g:
var merge = require('merge-stream');
gulp.task('clean-css', function () {
return del.sync([
'content/bundles/css.css',
'content/bundles/css.css.bundle',
'content/bundles/css.min.css',
'content/bundles/css.min.css.gz',
'temp/css/common/*.css',
'temp/css/user/*.css',
'temp/css/media/*.css']);
});
gulp.task('make_css_files', ['clean-css'], function () {
return merge(
gulp.src('content/less/common/*.less').pipe(less()).pipe(gulp.dest('temp/css/common')),
gulp.src('content/less/user/*.less').pipe(less()).pipe(gulp.dest('temp/css/user')),
gulp.src('content/less/media/*.less').pipe(less()).pipe(gulp.dest('temp/css/media'))
);
});
gulp.task('make_css_bundle', ['make_css_files'], function () {
return gulp.src(['temp/css/common/*.css', 'temp/css/user/*.css', 'temp/css/media/*.css'])
.pipe(minifyCSS())
.pipe(concat('css.min.css'))
.pipe(gulp.dest('content/bundles/'))
.pipe(gzip(gzip_options))
.pipe(gulp.dest('content/bundles/'));
});