vuejs/vue-cli

Vue CLI sourcemaps to style part of vue component file

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#4029 opened on May 20, 2019

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 (6 comments) (1 reaction) (0 assignees)JavaScript (29,754 stars) (6,328 forks)batch import
bughelp wanted

Description

Version

3.7.0

Reproduction link

https://github.com/l00k/vue-sample

Environment info

Environment Info:

  System:
    OS: Linux 4.15 Linux Mint 19 (Tara)
    CPU: (12) x64 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
  Binaries:
    Node: 8.15.0 - ~/.nvm/versions/node/v8.15.0/bin/node
    Yarn: Not Found
    npm: 6.4.1 - ~/.nvm/versions/node/v8.15.0/bin/npm
  Browsers:
    Chrome: 73.0.3683.103
    Firefox: 66.0.2
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0 
    @vue/babel-plugin-transform-vue-jsx:  1.0.0 
    @vue/babel-preset-app:  3.7.0 
    @vue/babel-preset-jsx:  1.0.0 
    @vue/babel-sugar-functional-vue:  1.0.0 
    @vue/babel-sugar-inject-h:  1.0.0 
    @vue/babel-sugar-v-model:  1.0.0 
    @vue/babel-sugar-v-on:  1.0.0 
    @vue/cli-overlay:  3.7.0 
    @vue/cli-plugin-babel: ^3.7.0 => 3.7.0 
    @vue/cli-plugin-pwa: ^3.7.0 => 3.7.0 
    @vue/cli-service: ^3.7.0 => 3.7.0 
    @vue/cli-shared-utils:  3.7.0 
    @vue/component-compiler-utils:  2.6.0 
    @vue/preload-webpack-plugin:  1.1.0 
    @vue/web-component-wrapper:  1.2.0 
    vue: ^2.6.10 => 2.6.10 
    vue-hot-reload-api:  2.3.3 
    vue-loader:  15.7.0 
    vue-router: ^3.0.3 => 3.0.6 
    vue-style-loader:  4.1.2 
    vue-template-compiler: ^2.5.21 => 2.6.10 
    vue-template-es2015-compiler:  1.9.1 
    vuex: ^3.0.1 => 3.1.1 
  npmGlobalPackages:
    @vue/cli: 3.7.0

Steps to reproduce

  1. Make sure you include my config vue.config.js (to enable sourcemaps)
  2. npm run serve
  3. Create filesystem mount (chrome)
  4. Open browser devtools and inspect any link
  5. Check styles subtab to track where style is defined, click on link to source tab

What is expected?

Sourcemap should point to full file component with edit available (as filesystem mount done)

What is actually happening?

Source tab presents only few lines with SCSS code (only style tag content). Edit is not available.

If you remove attribute lang="scss" full source of vue file will be presented, but still without option to edit file (via filesystem mount) I also created question with bounty on SO https://stackoverflow.com/questions/56127998/vue-cli-sourcemaps-to-style-part-of-vue-component-file

Contributor guide

Tech stack
vuecssjavascript
Domain
frontendbuild systemtooling
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
webpack basicsVue single file component structure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate how vue cli generates sourcemaps for .vue files, particularly the style block. The issue occurs when using SCSS. Check vue loader and webpack configuration for sourcemap handling. Look at the linked StackOverflow bounty for additional context. The fix likely involves adjusting the sourcemap configuration in vue loader or webpack to map the entire component file.