Fix Git LF CRLF

this is my cli written in node js executing it using npx <…args> makes git to detect changes in it

warning: in the working copy of 'bin/cli.js', LF will be replaced by CRLF the next time Git touches it

how to fix this ?

This issue arises because of line-ending differences between your development environment (likely Unix-based, using LF line endings) and a Windows environment (which defaults to CRLF line endings). Git tries to handle these differences automatically, but sometimes it creates issues, like the warning you see.

Here’s how to fix it:

1. Set a `.gitattributes` File

Create a .gitattributes file in the root of your repository if it doesn’t already exist. Add the following line to enforce consistent line endings for your CLI file (or all JavaScript files):

# Force LF endings for JavaScript files
*.js text eol=lf

This tells Git to always use LF line endings for JavaScript files, ensuring consistency across platforms.

2. Reconvert the Line Endings

Run the following commands to normalize line endings in your repository:

# Remove the file from the Git index
git rm --cached bin/cli.js

# Add the file back to the index with correct line endings
git add bin/cli.js

# Commit the changes
git commit -m "Normalize line endings for bin/cli.js"

3. Configure Git Settings Locally

Ensure your Git configuration handles line endings correctly:

If you’re on a Unix-based system (Linux, macOS), you can disable automatic conversion:

  git config --global core.autocrlf false

If you’re on Windows, set Git to convert line endings to LF when committing and CRLF when checking out:

  git config --global core.autocrlf true

4. Check and Fix Line Endings

You can manually convert line endings for the file using a tool like dos2unix or with a simple sed command.

Example using `sed`:

sed -i 's/\r$//' bin/cli.js

Example using `dos2unix`:

Install dos2unix if not already installed, and then:

dos2unix bin/cli.js

5. Verify

To verify the file’s line endings are correct, you can check with:

file bin/cli.js

It should report something like ASCII text without CRLF for LF line endings.

Once you apply these changes, Git should stop showing the warning about replacing LF with CRLF.

1. Set a .gitattributes File