Prevent VSCode auto format on save from removing final newline

Question

I am using the last feature of VSCode called formatOnSave, which is super cool.
I have one tiny problem, the formatter tends to delete the new line at the end of json files like packages.json for example.

My linter want those new lines at the end of the file, and me too.

Is there a setting or a method that allows me to tell the formatter to keep new lines at the end of files?

Related issue:

Would be great if VSCode could link an auto-edit to which setting or extension made the edit. As it is, if you have a complex set of formatters, linters, etc. it's basically impossible to figure out the source of a random edit. — ballenf, Feb 03 '19 at 15:44
Adding a proper `.editorconfig` file in my project solved my issue. — Rubens Mariuzzo, Feb 28 '20 at 14:47

score 30 · Accepted Answer · answered Aug 21 '17 at 15:18

30

This option has been added since the release 1.8 of November 2016:

New editor settings

files.insertFinalNewline - automatically add a newline at the end of files when saving.

answered Aug 21 '17 at 15:18

Cyril Gandon

16,830
14
78
122

3

How to disable it, It is still inserting blank line at the end of file when I set it to false. I am using prettier too. – Ari Mar 02 '19 at 04:34
1

How to disable this? I am using prettier-eslint – Aflext Apr 28 '19 at 11:44

score 12 · Answer 2 · answered Nov 09 '20 at 10:53

If you wish to preserve the last line in package.json and not affect other file types, add below lines to your vs code configuration.

  "[json]": {
    "files.insertFinalNewline": true,
    "files.trimFinalNewlines": true,
  }

This basically tells VS code to

Apply settings only to json files
Insert final lines at end of the file
Remove extra lines at the end of the file (i.e. only keep 1 empty line)

score 1 · Answer 3 · answered Oct 15 '19 at 11:36

My linter want those new lines at the end of the file, and me too.

VSCode ESLint has an option called autoFixOnSave you could try. Depending on your workflow ESLint CLI also has a --fix option you could tie into a git hook.

If you're just looking for some sensible defaults here they are:

"files.trimTrailingWhitespace": true,
"files.insertFinalNewline": true,
"files.trimFinalNewlines": true,

score 0 · Answer 4 · answered Sep 07 '22 at 11:54

0

In my case, I just changed the prettier.endOfLine setting from cr to crlfin VS code settings JSON

answered Sep 07 '22 at 11:54

Taimoor

67
8

Prevent VSCode auto format on save from removing final newline

4 Answers4