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[英]Gulp and run-sequence error : Task is not configured as a task on gulp
[英]Issue with task not executing when using gulp with run-sequence
我是gulp的新手,因此我將一個簡單的腳本組合在一起:1)了解gulp的工作原理,以及2)改善開發工作流程。
我遇到的問題是,如果我將runSequence任務列表設置為jscs然后是lint的順序,則不會執行lint任務。 但是,如果我反轉它們,並先運行lint,然后運行jscs,則兩個任務都將成功執行。 經過更多測試之后,我確定是我使用jscs的方式引起了問題,或者jscs出現了問題,阻止了這種方式的執行。
/* File: gulpfile.js */
/* grab the packages we will be using */
var gulp = require('gulp');
var gutil = require('gulp-util');
var jscs = require('gulp-jscs');
var jsHint = require('gulp-jshint');
var jsHintStylish = require('jshint-stylish');
var runSequence = require('run-sequence');
var console = require('better-console');
// configure the default task and add the watch task to it
gulp.task('default', ['watch']);
// configure the jscs task
gulp.task('jscs', function() {
return gulp.src('src/app/**/*.js')
.pipe(jscs('.jscsrc'));
});
// configure the lint task
gulp.task('lint', function() {
return gulp.src("src/app/**/*.js")
.pipe(jsHint('.jshintrc'))
.pipe(jsHint.reporter(jsHintStylish));
});
// configure the watch task - set up which files to watch and what tasks to use when those files change
gulp.task('watch',function() {
// Clear console
console.clear();
// setup a watch against the files that need to be checked on save
gulp.watch('src/app/**/*.js', function(){
// Clear console so only current issues are shown
console.clear();
// Execute tasks to check code for issues
runSequence('lint','jscs',function(){
gutil.log("Code Check Complete.");
});
});
});
{
"name": "my project name",
"version": "0.1.0",
"author": {
"name": "my name",
"email": "myemail@domain.com"
},
"devDependencies": {
"better-console": "^0.2.4",
"gulp": "^3.8.11",
"gulp-jscs": "^1.6.0",
"gulp-jshint": "^1.11.0",
"gulp-util": "^3.0.4",
"jshint-stylish": "^1.0.2",
"run-sequence": "^1.1.0"
}
}
(function() {
'use strict;
var x = ;
})();
'lint','jscs',function(){...}
時的示例輸出: [15:10:49] Starting 'lint'...
c:\Users\anatha\My Projects\Tracks\Tracks.Client\src\app\app.js
line 3 col 17 Unclosed string.
line 4 col 1 Unclosed string.
line 5 col 14 Unclosed string.
line 6 col 1 Unclosed string.
line 7 col 6 Unclosed string.
line 8 col 1 Unclosed string.
line 3 col 5 Unclosed string.
line 1 col 13 Missing semicolon.
line 8 col 1 Missing "use strict" statement.
line 1 col 13 Unmatched '{'.
line 1 col 1 Unmatched '('.
line 8 col 1 Expected an assignment or function call and instead saw an expression.
line 8 col 1 Missing semicolon.
× 4 errors
‼ 9 warnings
[15:10:49] Finished 'lint' after 104 ms
[15:10:49] Starting 'jscs'...
[15:10:49] 'jscs' errored after 157 ms
[15:10:49] Error in plugin 'gulp-jscs'
Message:
Unexpected token ILLEGAL at app.js :
1 |(function() {
2 |
3 | 'use strict;
-----------------------^
4 |
5 | var x = ;
[15:10:49] Code Check Complete.
'jscs','lint',function(){...}
時的示例輸出(注意,永遠不會執行lint語句): [15:09:48] Starting 'jscs'...
[15:09:48] 'jscs' errored after 178 ms
[15:09:48] Error in plugin 'gulp-jscs'
Message:
Unexpected token ILLEGAL at app.js :
1 |(function() {
2 |
3 | 'use strict;
-----------------------^
4 |
5 | var x = ;
[15:09:48] Code Check Complete.
在花了幾個小時研究了問題的原因之后,我將其范圍縮小到以下事實:JSCS在確定它檢查的代碼不遵守用戶設置的規范時拋出錯誤。 引發此錯誤時,它會禁止運行順序中的后續任務; 但是,奇怪的是,從未生成未處理的錯誤事件來警告用戶該問題。
這與JSHINT的操作方式不同。 當JSHINT確定代碼中存在錯誤時,它僅輸出違反代碼的行為,而不會引發導致后續任務永遠不會被觸發的錯誤。
我更新了腳本,以解決此問題,方法是捕獲未處理的錯誤,並對該錯誤執行最少的處理,以完成運行序列中指定的其余任務。
gulpfile.js
文件: /* File: gulpfile.js */
/* grab the packages we will be using */
var gulp = require('gulp');
var gUtil = require('gulp-util');
var jscs = require('gulp-jscs');
var jsHint = require('gulp-jshint');
var jsHintStylish = require('jshint-stylish');
var runSequence = require('run-sequence');
var console = require('better-console');
// default error handler
var handleJscsError = function(err) {
console.log("Error: " + err.toString());
this.emit('end');
}
// configure the default task and add the watch task to it
gulp.task('default', ['watch']);
// configure the jscs task
gulp.task('jscs', function() {
return gulp.src('src/app/**/*.js')
.pipe(jscs('.jscsrc'))
.on('error',handleJscsError);
});
// configure the lint task
gulp.task('lint', function() {
return gulp.src("src/app/**/*.js")
.pipe(jsHint('.jshintrc'))
.pipe(jsHint.reporter(jsHintStylish));
});
// configure the watch task - set up which files to watch and what tasks to use when those files change
gulp.task('watch', function() {
// Clear console
console.clear();
// setup a watch against the files that need to be checked on save
return gulp.watch('src/app/**/*.js', function(){
// Clear console so only current issues are shown
console.clear();
// Execute tasks to check code for issues
runSequence('jscs','lint',function(){
console.log("Tasks Completed.")
});
});
});
我嘗試通過創建自定義JSCS報告程序來解決此問題。 盡管我確實做到了這一點,但對我而言,這確實是一種麻煩,而不是一個可靠的解決方案。 而且要補充一點,JSCS不像JSHINT那樣提供自定義報告,這使我更加難看,因為一旦添加了對自定義報告的支持 ,我仍然必須重構代碼。
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