在我的 angular-cli 项目中从 node-sass 切换到 dart sass

Question

在“npm install”期间，我一直在用 node-sass 做各种愚蠢的事情，包括但不限于：

• GNU c++ 编译一些东西（可能是它本身）
• 尝试运行python2.7
• 尝试运行任何其他版本的 python
• 尝试连接到github

这在企业环境中造成了问题，我必须在 Jenkins 上编译我的项目，其中 NPM 库必须从企业服务器上的 npm 注册表克隆中提取，并且只有该特定项目的严格必需品在 docker 上可用，因此：

• 没有github
• 没有蟒蛇
• 没有 C++

我决定我已经受够了 node-sass 的恶作剧，所以我尝试了建议的“dart-sass”，因为这个概念似乎是完全兼容角度的，旨在解决 node-sass 的大部分问题: https://sass-lang.com/dart-sass

我尝试删除 node-sass 并将 dart-sass 代替：

npm remove node-sass
npm install dart-sass
ng serve

但这会导致：

Module build failed (from ./node_modules/sass-loader/lib/loader.js):
Error: Cannot find module 'node-sass'

对于项目中的每个组件。

为什么它仍在寻找 node-sass？

这是我的 package.json ：

{
  "name": "web.ui",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve --aot=false --proxy-config proxy.json",
    "build": "ng b --prod",
    "builden": "ng b --prod --configuration=en",
    "buildde": "ng b --prod --configuration=de",
    "test": "ng test",
    "lint": "ng lint",
    "ngc": "ngc"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^7.0.3",
    "@angular/cdk": "^7.0.3",
    "@angular/common": "^7.0.3",
    "@angular/compiler": "^7.0.3",
    "@angular/core": "^7.0.3",
    "@angular/forms": "^7.0.3",
    "@angular/http": "^7.0.3",
    "@angular/material": "^7.0.3",
    "@angular/material-moment-adapter": "^7.0.3",
    "@angular/platform-browser": "^7.0.3",
    "@angular/platform-browser-dynamic": "^7.0.3",
    "@angular/router": "^7.0.3",
    "@ngx-translate/core": "^11.0.0",
    "@ngx-translate/http-loader": "^4.0.0",
    "@ngx-translate/i18n-polyfill": "^1.0.0",
    "@types/underscore": "^1.8.7",
    "angular-font-awesome": "^3.1.2",
    "bootstrap": "^4.1.1",
    "classlist.js": "^1.1.20150312",
    "core-js": "^2.5.3",
    "dart-sass": "^1.15.0",
    "dom-autoscroller": "^2.3.4",
    "file-saver": "^2.0.0-rc.4",
    "font-awesome": "^4.7.0",
    "iconv-lite": "^0.4.23",
    "lodash": "^4.17.5",
    "moment": "^2.22.2",
    "ng-snotify": "^4.3.1",
    "ng2-ion-range-slider": "^2.0.0",
    "ngx-bootstrap": "^3.1.1",
    "popper.js": "^1.14.3",
    "rxjs": "^6.2.0",
    "typescript": "3.1.6",
    "underscore": "^1.9.1",
    "web-animations-js": "^2.3.1",
    "zone.js": "^0.8.20"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.10.0",
    "@angular/cli": "^7.0.5",
    "@angular/compiler-cli": "^7.0.3",
    "@angular/language-service": "^7.0.3",
    "@types/jasmine": "^2.8.9",
    "@types/jasminewd2": "~2.0.5",
    "@types/node": "~10.12.1",
    "codelyzer": "^4.5.0",
    "postcss-modules": "^1.4.1",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.1",
    "tslint": "~5.11.0"
  }
}

这是我的 angular.json ：

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "web.ui": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist",
            "index": "src/index.html",
            "main": "src/main.ts",
            "tsConfig": "src/tsconfig.app.json",
            "polyfills": "src/polyfills.ts",
            "assets": [
              "src/assets",
              "src/favicon.ico",
              "src/assets/images"
            ],
            "styles": [
              "node_modules/ng-snotify/styles/simple.scss",
              "node_modules/ion-rangeslider/css/ion.rangeSlider.css",
              "node_modules/font-awesome/css/font-awesome.css",
              "node_modules/bootstrap/dist/css/bootstrap.min.css",
              "src/app/logged.in/content/routing/common/styles/ion.slider.style.scss",
              "src/styles.scss"
            ],
            "scripts": [
              "node_modules/jquery/dist/jquery.min.js",
              "node_modules/ion-rangeslider/js/ion.rangeSlider.min.js"
            ]
          },
          "configurations": {
            "en": {
              "aot": true,
              "outputPath": "dist/en/",
              "i18nFile": "src/assets/i18n/en.xlf",
              "i18nFormat": "xlf",
              "i18nLocale": "en",
              "i18nMissingTranslation": "error"
            },
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true
            },
            "production-en": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "outputPath": "dist/my-project-en/",
              "i18nFile": "src/assets/i18n/en.xlf",
              "i18nFormat": "xlf",
              "i18nLocale": "en",
              "i18nMissingTranslation": "error"
            },
            "production-de": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "outputPath": "dist/my-project-en/",
              "i18nFile": "src/assets/i18n/de.xlf",
              "i18nFormat": "xlf",
              "i18nLocale": "en",
              "i18nMissingTranslation": "error"
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "web.ui:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "web.ui:build:production"
            },
            "en": {
              "browserTarget": "web.ui:build:en"
            },
            "production-en": {
              "browserTarget": "web.ui:build:production-en"
            },
            "production-de": {
              "browserTarget": "web.ui:build:production-de"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "web.ui:build"
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    },
    "web.ui-e2e": {
      "root": "",
      "sourceRoot": "",
      "projectType": "application"
    }
  },
  "defaultProject": "web.ui",
  "cli": {
    "warnings": {
      "typescriptMismatch": false
    }
  },
  "schematics": {
    "@schematics/angular:component": {
      "prefix": "app",
      "styleext": "scss"
    },
    "@schematics/angular:directive": {
      "prefix": "app"
    }
  }
}

这就是在 dart（js 框架）下添加 sass 的方法，顺便说一句： Dart 是否与 SASS 集成？

但该方法不适用于角度。

更新 ：

我尝试使用这个： 如何找到 npm 包的反向依赖关系？

尽管我尽了最大的努力，但还是要弄清楚什么是依赖/拉动 node-sass 的，结果是：@angular-devkit/build-angular

但是如果我删除它，那么 ng 服务就不开心了。 它说它需要它。

Answer 1

FWIW，为了让 angular 7.x 使用sass包而不是尝试安装 node-sass，我不得不：

1. 从我的 package.json 中删除@angular-devkit/build-angular
2. 删除 node_modules
3. 安装
4. npm i -D sass
5. 将@angular-devkit/build-angular devkit @angular-devkit/build-angular的 0.13.10 添加回 package.json
6. 再次安装 npm。

Answer 2

@angular-devkit/build-angular支持 dart sass，只有您使用了错误的模块，请尝试将npm install sass与dart-sass 。

您可以在此处查看确认这一点的源代码： https : //github.com/angular/angular-cli/pull/11791/commits/2c26bce9a5e2472239d755f585df9458f28b9b7f