prettier and eslint configs conflict and break tests

[asprouse]

This is a Bug Report

Description

Prettier has the bracketSpacing: false while eslint expects spacing around brackets for example right after committing code if I run eslint again I get these errors:

$ npm run eslint

> serverless-webpack@5.3.1 eslint /Users/als/code/serverless-webpack
> node node_modules/eslint/bin/eslint.js --ext .js lib


/Users/als/code/serverless-webpack/lib/packagers/yarn.js
   31:18  error  A space is required after '['   array-bracket-spacing
   31:76  error  A space is required before ']'  array-bracket-spacing
   60:38  error  A space is required after '{'   object-curly-spacing
   60:57  error  A space is required before '}'  object-curly-spacing
  128:18  error  A space is required after '['   array-bracket-spacing
  128:70  error  A space is required before ']'  array-bracket-spacing
  135:46  error  A space is required after '{'   object-curly-spacing
  135:50  error  A space is required before '}'  object-curly-spacing
  146:20  error  A space is required after '['   array-bracket-spacing
  146:38  error  A space is required before ']'  array-bracket-spacing
  148:48  error  A space is required after '{'   object-curly-spacing
  148:52  error  A space is required before '}'  object-curly-spacing

/Users/als/code/serverless-webpack/lib/packagers/yarn.test.js
   50:52  error  A space is required after '{'                   object-curly-spacing
   50:77  error  A space is required before '}'                  object-curly-spacing
   56:1   error  Expected indentation of 8 spaces but found 10   indent
   57:1   error  Expected indentation of 10 spaces but found 12  indent
   58:1   error  Expected indentation of 10 spaces but found 12  indent
   58:13  error  A space is required after '['                   array-bracket-spacing
   58:59  error  A space is required before ']'                  array-bracket-spacing
   59:1   error  Expected indentation of 10 spaces but found 12  indent
   59:13  error  A space is required after '{'                   object-curly-spacing
   59:27  error  A space is required before '}'                  object-curly-spacing
   60:1   error  Expected indentation of 8 spaces but found 10   indent
  113:27  error  A space is required after '{'                   object-curly-spacing
  113:62  error  A space is required before '}'                  object-curly-spacing
  234:27  error  A space is required after '{'                   object-curly-spacing
  234:72  error  A space is required before '}'                  object-curly-spacing
  242:13  error  A space is required after '['                   array-bracket-spacing
  242:65  error  A space is required before ']'                  array-bracket-spacing
  254:27  error  A space is required after '{'                   object-curly-spacing
  254:72  error  A space is required before '}'                  object-curly-spacing
  257:38  error  A space is required after '{'                   object-curly-spacing
  257:58  error  A space is required before '}'                  object-curly-spacing
  303:27  error  A space is required after '{'                   object-curly-spacing
  303:57  error  A space is required before '}'                  object-curly-spacing
  306:41  error  A space is required after '['                   array-bracket-spacing
  306:52  error  A space is required before ']'                  array-bracket-spacing
  312:11  error  A space is required after '['                   array-bracket-spacing
  312:23  error  A space is required before ']'                  array-bracket-spacing
  319:11  error  A space is required after '['                   array-bracket-spacing
  319:23  error  A space is required before ']'                  array-bracket-spacing

/Users/als/code/serverless-webpack/lib/utils.js
  112:17  error  A space is required after '{'   object-curly-spacing
  112:32  error  A space is required before '}'  object-curly-spacing

✖ 43 problems (43 errors, 0 warnings)
  43 errors and 0 warnings potentially fixable with the `--fix` option.

Another issue is that trailingComma: 'all' breaks tests in node v6 where dangling commas in function arguments is not allowed.

Prettier should be set up as an ESLint rule using https://github.com/prettier/eslint-plugin-prettier this way linting and formatting is done when running npx eslint --fix. Another option is https://github.com/prettier/prettier-eslint-cli.

Additional Data

• Serverless-Webpack Version you're using: 5.3.1
• Webpack version you're using:4.33.0
• Serverless Framework Version you're using: 1.30.3
• Operating System: OS X 10.13
• Stack Trace (if available):

[HyperBrain]

Let's get this one fixed first, before anyone else runs into infinite fix loops. In general, the current eslint settings should be used by prettier and not vice versa (as you proposed) - these were in place for a very long time and proved to be good. Can you provide a PR for the fix, or should I investigate?

…

On Fri, Jun 14, 2019 at 2:45 AM Andrew Sprouse ***@***.***> wrote: This is a Bug Report Description Prettier has the bracketSpacing: false while eslint expects spacing around brackets for example right after committing code if I run eslint again I get these errors: $ npm run eslint > ***@***.*** eslint /Users/als/code/serverless-webpack > node node_modules/eslint/bin/eslint.js --ext .js lib /Users/als/code/serverless-webpack/lib/packagers/yarn.js 31:18 error A space is required after '[' array-bracket-spacing 31:76 error A space is required before ']' array-bracket-spacing 60:38 error A space is required after '{' object-curly-spacing 60:57 error A space is required before '}' object-curly-spacing 128:18 error A space is required after '[' array-bracket-spacing 128:70 error A space is required before ']' array-bracket-spacing 135:46 error A space is required after '{' object-curly-spacing 135:50 error A space is required before '}' object-curly-spacing 146:20 error A space is required after '[' array-bracket-spacing 146:38 error A space is required before ']' array-bracket-spacing 148:48 error A space is required after '{' object-curly-spacing 148:52 error A space is required before '}' object-curly-spacing /Users/als/code/serverless-webpack/lib/packagers/yarn.test.js 50:52 error A space is required after '{' object-curly-spacing 50:77 error A space is required before '}' object-curly-spacing 56:1 error Expected indentation of 8 spaces but found 10 indent 57:1 error Expected indentation of 10 spaces but found 12 indent 58:1 error Expected indentation of 10 spaces but found 12 indent 58:13 error A space is required after '[' array-bracket-spacing 58:59 error A space is required before ']' array-bracket-spacing 59:1 error Expected indentation of 10 spaces but found 12 indent 59:13 error A space is required after '{' object-curly-spacing 59:27 error A space is required before '}' object-curly-spacing 60:1 error Expected indentation of 8 spaces but found 10 indent 113:27 error A space is required after '{' object-curly-spacing 113:62 error A space is required before '}' object-curly-spacing 234:27 error A space is required after '{' object-curly-spacing 234:72 error A space is required before '}' object-curly-spacing 242:13 error A space is required after '[' array-bracket-spacing 242:65 error A space is required before ']' array-bracket-spacing 254:27 error A space is required after '{' object-curly-spacing 254:72 error A space is required before '}' object-curly-spacing 257:38 error A space is required after '{' object-curly-spacing 257:58 error A space is required before '}' object-curly-spacing 303:27 error A space is required after '{' object-curly-spacing 303:57 error A space is required before '}' object-curly-spacing 306:41 error A space is required after '[' array-bracket-spacing 306:52 error A space is required before ']' array-bracket-spacing 312:11 error A space is required after '[' array-bracket-spacing 312:23 error A space is required before ']' array-bracket-spacing 319:11 error A space is required after '[' array-bracket-spacing 319:23 error A space is required before ']' array-bracket-spacing /Users/als/code/serverless-webpack/lib/utils.js 112:17 error A space is required after '{' object-curly-spacing 112:32 error A space is required before '}' object-curly-spacing ✖ 43 problems (43 errors, 0 warnings) 43 errors and 0 warnings potentially fixable with the `--fix` option. Prettier should be set up as an ESLint rule using https://github.com/prettier/eslint-plugin-prettier this way linting and formatting is done when running npx eslint --fix. Additional Data - *Serverless-Webpack Version you're using*: 5.3.1 - *Webpack version you're using*:4.33.0 - *Serverless Framework Version you're using*: 1.30.3 - *Operating System*: OS X 10.13 - *Stack Trace (if available)*: — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#515?email_source=notifications&email_token=ABKEZXWJYKJQUDOILF6N7UDP2LS3ZA5CNFSM4HYCKRXKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4GZOGJHA>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABKEZXQ6HPUQMP6MRWW7DK3P2LS3ZANCNFSM4HYCKRXA> .

[asprouse]

Sure! If you prefer the ESLint config then we can try prettier-eslint-cli which runs prettier then eslint --fix this way you get output that looks more like your ESLint config.