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Command: diff

Usage

# Using ts-node
npx ts-node <path/to/git.ts> diff

# Using node
node <path/to/git.js> diff

Description

Show changes between index and working tree.

Approach

  1. First we retrieve the status of files from current working tree using the function getFileStatus() present in fileStatus.ts.

  2. Then iterate over the files and create a diff string iteratively. Skip files that are not of out interests.

  3. To create the diff for a file, I used the function createTwoFilesPatch() from the diff package, performed some cleanup and added some text color to match the actual git diff command output. This is handled by the function diffFile() present in diff.ts

Note: The output of the original git diff command and the diff command implemented here might be slightly different.