stylelint — css书写规范

sass lint guidance

一、安装：npm intsall -g stylelint

二、配置：http://stylelint.io/user-guide/rules/ (以下规则文件配置一个即可，置于项目根目录下)

1. “.stylelintrc”
   {
   "rules": {
   "declaration-block-trailing-semicolon": null
   }
   }

2. “stylelint.config.js”
   module.exports = {
   "rules": {
   "declaration-block-trailing-semicolon": null
   }
   }

3. “package.json”
   {
   ......
   "stylelint": {
   "rules": {
   "color-hex-case": "lower"
   }
   }
   }

三、官网给出的标准配置：

1. 本地安装： npm install stylelint-config-standard
2. 在配置文件“.stylelintrc”中配置
   {
   "extends": "stylelint-config-standard"
   }
3. 添加或修改标准配置中的内容
   {
   "extends": "stylelint-config-standard",
   "rules": {
   "declaration-block-trailing-semicolon": null
   }
   }

四、使用命令行：stylelint doc/text.css

五、使用gulp自动监听检查 https://github.com/olegskl/gulp-stylelint

1. 本地安装gulp： npm install gulp

2. 创建package.json文件：npm init

3. 本地安装gulp-stylelint： npm install gulp-stylelint --save-dev

4. 创建gulpfile.js
   var gulp = require("gulp");
   var gulpStyleLint = require("gulp-stylelint");

    gulp.task('lint-css', function lintCssTask() {
    	gulp.watch("css/*.css", ["lint-css"]);
    	return gulp
    		.src("css/*.css")
    		.pipe(gulpStyleLint({
    			reporters: [
    				{formatter: 'string', console: true}
    			]
    	}));
    });
   
    gulp.task("default", ["lint-css"]);
   

六、其他

1. 在样式之前标注“/* stylelint-disable */”，可忽略配置的规则；标注“/* stylelint-enable */“，开启配置的规则
2. “/* stylelint-enable */“必须在“/* stylelint-disable */”之后使用
3. 忽略指定的内容：
   （1）.stylelintrc
   {
   "rules": {
   "unit-no-unknown": [true, ignoreUnits:["xxx"]]
   }
   }
   （2）package.json && stylelint.config.js
   {
   "rules": {
   "at-rule-no-unknown": [true, {"ignoreAtRules": ["function", "if", "return", "include", "extend", "mixin", "else", "while", "for", "each"]}]
   }
   }

七、配置文件
1.
{
"rules": {
"color-hex-case": "lower",
"color-no-invalid-hex": true,
"at-rule-name-space-after": "always",
"at-rule-semicolon-newline-after": "always",
"at-rule-no-unknown": [true, ignoreAtRules: ["function", "if", "return", "include", "extend", "mixin", "else", "while", "for", "each"]],
"function-comma-space-after": "always",
"function-linear-gradient-no-nonstandard-direction": true,
"function-url-quotes": "always",
"function-whitespace-after": "always",
"number-leading-zero": "never",
"number-no-trailing-zeros": true,
"string-no-newline": true,
"string-quotes": "double",
"unit-case": "lower",
"unit-no-unknown": true,
"value-keyword-case": "lower",
"value-list-comma-newline-after": "always-multi-line",
"value-list-comma-space-after": "always",
"shorthand-property-no-redundant-values": true,
"declaration-bang-space-after": "never",
"declaration-bang-space-before": "always",
"declaration-colon-space-after": "always",
"declaration-colon-space-before": "never",
"declaration-block-no-ignored-properties": true,
"declaration-block-no-shorthand-property-overrides": true,
"declaration-block-semicolon-newline-after": "always-multi-line",
"declaration-block-semicolon-newline-before": "never-multi-line",
"declaration-block-semicolon-space-after": "always-single-line",
"declaration-block-semicolon-space-before": "never",
"declaration-block-trailing-semicolon": "always",
"block-no-empty": true,
"block-opening-brace-space-after": "always-single-line",
"block-opening-brace-space-before": "always",
"block-closing-brace-space-before": "always-single-line",
"selector-attribute-brackets-space-inside": "always",
"selector-attribute-operator-space-after": "always",
"selector-attribute-operator-space-before": "always",
"selector-combinator-space-after": "always",
"selector-combinator-space-before": "always",
"selector-max-compound-selectors": 4,
"selector-no-universal": true,
"selector-pseudo-class-case": "lower",
"selector-pseudo-class-no-unknown": true,
"selector-pseudo-element-case": "lower",
"selector-pseudo-element-no-unknown": true,
"selector-type-case": "lower",
"selector-max-empty-lines": 0,
"selector-list-comma-newline-before": "never-multi-line",
"selector-list-comma-space-after": "always-single-line",
"rule-nested-empty-line-before": "never",
"media-query-list-comma-newline-after": "always-multi-line",
"media-query-list-comma-space-after": "always-single-line",
"comment-whitespace-inside": "always",
"max-empty-lines": 1,
"max-nesting-depth": 4,
"no-descending-specificity": true,
"no-duplicate-selectors": true,
"no-empty-source": true,
"no-eol-whitespace": true,
"no-extra-semicolons": true,
"no-invalid-double-slash-comments": true,
"no-unknown-animations": true
}
}
八、配置文件说明

属性名	属性值	描述
[color-hex-case](http://stylelint.io/user-guide/rules/color-hex-case/)	lower	颜色值为小写字母
[color-no-invalid-hex](http://stylelint.io/user-guide/rules/color-no-invalid-hex)	true	颜色值不能为无效值
[at-rule-name-space-after](http://stylelint.io/user-guide/rules/at-rule-name-space-after)	always	@xx 后需空格
[at-rule-semicolon-new-new-line](http://stylelint.io/user-guide/rules/at-rule-semicolon-new-new-line)	alway	@xx 分号后要换行
[function-calc-no-unspaced-operator](http://stylelint.io/user-guide/rules/function-calc-no-unspaced-operator)	true	方法中的计算符号左右需空格
[function-comma-space-after](http://stylelint.io/user-guide/rules/function-comma-space-after)	always	方法中逗号后需空格
[function-linear-gradient-no-nonstandard-direction](http://stylelint.io/user-guide/rules/function-linear-gradient-no-nonstandard-direction)	true	linear-gradient()内参数严格按照css规范
[function-max-line-lines](http://stylelint.io/user-guide/rules/function-max-line-lines)	0	方法中参数允许0行空行
[function-parentheses-newline-inside](http://stylelint.io/user-guide/rules/function-parentheses-newline-inside)	never-multi-line	方法中参数允许逗号后换行
[function-url-quotes](http://stylelint.io/user-guide/rules/function-url-quotes)	always	地址一定要写引号
[function-whitespace-after](http://stylelint.io/user-guide/rules/function-whitespace-after)	always	方法之间一定要空格
[number-leading-zero](http://stylelint.io/user-guide/rules/number-leading-zero)	never	数字不以0开头。错误：0.5；正确：.5
[number-no-trailing-zeros](http://stylelint.io/user-guide/rules/number-no-trailing-zeros)	true	不能有数字末尾多余的0。错误：1.000；正确：1
[string-no-newline](http://stylelint.io/user-guide/rules/string-no-newline)	true	字符串之前不能有“\n"
[string-quotes](http://stylelint.io/user-guide/rules/string-quotes)	double	字符串最外层用双引号，而不是单引号
[unit-case](http://stylelint.io/user-guide/rules/unit-case)	lower	单位小写
[unit-no-unknown](http://stylelint.io/user-guide/rules/unit-no-unknown)	true	不允许未知的单位
[value-keyword-case](http://stylelint.io/user-guide/rules/value-keyword-case)	lower	属性值小写
[value-list-comma-newline-after](http://stylelint.io/user-guide/rules/value-list-comma-newline-after)	always-multi-line	属性值列不允许逗号前换行
[value-list-comma-space-after](http://stylelint.io/user-guide/rules/value-list-comma-space-after)	always	属性值列表逗号后需空格
[shorthand-properyu-no-redundat-values](http://stylelint.io/user-guide/rules/shorthand-properyu-no-redundat-values)	true	可简写的属性不重复写，错误：margin: 1px 1px;
[declaration-bang-space-after](http://stylelint.io/user-guide/rules/declaration-bang-space-after)	never	!important中！后不空格
[declatation-bang-space-before](http://stylelint.io/user-guide/rules/declatation-bang-space-before)	always	!important中！前空一格
[declatation-colon-space-after](http://stylelint.io/user-guide/rules/declatation-colon-space-after)	always	属性名冒号后空一格
[declatation-colon-space-before](http://stylelint.io/user-guide/rules/declatation-colon-space-before)	never	属性名冒号前不空格
[declatation-block-no-ignored-properties](http://stylelint.io/user-guide/rules/declatation-block-no-ignored-properties)	true	禁止那些由于在同一规则的另一个属性值忽略的属性值。
[declaration-block-no-shorthand-property-overrides](http://stylelint.io/user-guide/rules/declaration-block-no-shorthand-property-overrides)	true	错误：border-top-width: 1px; border: 2px solid blue;
[declaration-block-semicolon-newline-after](http://stylelint.io/user-guide/rules/declaration-block-semicolon-newline-after)	always-multi-line	一个模块要么整个模块一行显示，要么分号后分行显示
[declaration-block-semicolon-space-after](http://stylelint.io/user-guide/rules/declaration-block-semicolon-space-after)	always-single-line	属性之间分号后空一格或换行
[declaration-block-semicolon-newline-before](http://stylelint.io/user-guide/rules/declaration-block-semicolon-newline-before)	never-multi-line	分号前不允许换行
[declaration-block-semicolon-space-before](http://stylelint.io/user-guide/rules/declaration-block-semicolon-space-before）	never	分号前不允许空格
[declaration-block-trailing-semicolon](http://stylelint.io/user-guide/rules/declaration-block-trailing-semicolon)	always	模块内最后一个属性必须有分号
[block-no-empty](http://stylelint.io/user-guide/rules/block-no-empty)	true	不允许模块内为空
[block-opening-brace-space-after](http://stylelint.io/user-guide/rules/block-opening-brace-space-after)	always-single-line	模块单行时“{”后空一格
[block-opening-brace-space-before](http://stylelint.io/user-guide/rules/block-opening-brace-space-before)	always	“{”前空一格
[block-closing-brace-space-before](http://stylelint.io/user-guide/rules/block-closing-brace-space-before)	always-single-line	模块单行时“}”前空一格
[selector-attribute-brackets-space-inside](http://stylelint.io/user-guide/rules/selector-attribute-brackets-space-inside)	always	“[”后空一格，“]”前空一格
[selector-attribute-operator-space-after](http://stylelint.io/user-guide/rules/selector-attribute-operator-space-after)	always	“[]”内的“=”后空一格
[selector-attribute-operator-space-before](http://stylelint.io/user-guide/rules/selector-attribute-operator-space-before)	always	“[]”内的“=”前空一格
[selector-combinator-space-after](http://stylelint.io/user-guide/rules/selector-combinator-space-after）	always	选择器后空一格，例如：ul> li
[selector-combinator-space-before](http://stylelint.io/user-guide/rules/selector-combinator-space-before)	always	选择器前空一格，例如：ul >li
[selector-max-compound-selectors](http://stylelint.io/user-guide/rules/selector-max-compound-selectors)	4	最多4层选择器
[selector-no-universal](http://stylelint.io/user-guide/rules/selector-no-universal)	true	不允许通用选择器*
[selector-pseudo-class-case](http://stylelint.io/user-guide/rules/selector-pseudo-class-case)	lower	伪类选择器小写（：hover之类）
[selector-pseudo-class-no-unknown](http://stylelint.io/user-guide/rules/selector-pseudo-class-no-unknown)	true	不允许css规范外的伪类选择器（：hover之类）
[selector-pseudo-element-case](http://stylelint.io/user-guide/rules/selector-pseudo-element-case)	lower	伪类选择器小写（：: before之类）
[selector-pseudo-element-no-unknown](http://stylelint.io/user-guide/rules/selector-pseudo-element-no-unknown)	true	不允许css规范外的伪类选择器（：: before之类）
[selector-type-case](http://stylelint.io/user-guide/rules/selector-type-case	lower	标签选择器小写
[selector-max-empty-lines](http://stylelint.io/user-guide/rules/selector-max-empty-lines)	0	选择器共用一个模块，选择器之间允许0行空白
[selector-list-comma-newline-before](http://stylelint.io/user-guide/rules/selector-list-comma-newline-before)	never-multi-line	选择器共用一个模块，选择器之间要么一行，要么逗号后换行
[selector-list-comma-space-after](http://stylelint.io/user-guide/rules/selector-list-comma-space-after)	always-single-line	选择器共用一个模块，选择器一行时，逗号后空一格
[rule-nested-empty-line-before](http://stylelint.io/user-guide/rules/rule-nested-empty-line-before)	never	嵌套规则前不空行
[media-query-list-comma-newline-before](http://stylelint.io/user-guide/rules/media-query-list-comma-newline-before)	always-single-line	媒体查询列表中不允许逗号之前换行
[media-query-list-comma-space-after](http://stylelint.io/user-guide/rules/media-query-list-comma-space-after)	always-single-line	媒体查询列表中单行逗号之后空一格
[comment-whitespace-inside](http://stylelint.io/user-guide/rules/comment-whitespace-inside)	always	注释符之间空格。错误：/*\* haha \*/；正确：/\* haha \*/
[max-empty-lines](http://stylelint.io/user-guide/rules/max-empty-lines)	1	内容之间最多允许1行空白行
[max-nesting-depth](http://stylelint.io/user-guide/rules/max-nesting-depth)	4	sass中允许嵌套的深度为4
[no-descending-specificity](http://stylelint.io/user-guide/rules/no-descending-specificity)	true	选择的同一元素，不允许权重较轻的选择器出现在权重较重的之后
[no-duplicate-selectors](http://stylelint.io/user-guide/rules/no-duplicate-selectors)	true	一个样式表不允许相同的选择器出现
[no-empty-source](http://stylelint.io/user-guide/rules/no-empty-source)	true	样式表不允许为空
[no-eol-whitespace](http://stylelint.io/user-guide/rules/no-eol-whitespace)	true	样式表末尾不允许空行
[no-extra-semicolons](http://stylelint.io/user-guide/rules/no-extra-semicolons)	true	不允许多余的分号
[no-invalid-double-slash-comments](http://stylelint.io/user-guide/rules/no-invalid-double-slash-comments)	true	不允许//注释
[no-unknown-animations](http://stylelint.io/user-guide/rules/no-unknown-animations)	true>	animation的name不能是keyframes没有定义的