Git Diff Img Save
📷 Diff Git versioned images graphically.
git-diff-img
The result of git diff-img. Sample image by
Muband from
the Spot the difference
Wikipedia article; distributed under a CC BY-SA 3.0 license
Installation
System Prerequisites
Install ImageMagick: sudo apt install imagemagick.
As a Git configuration (recommended)
git config --global alias.diff-img difftool\ -x\ \''compare -alpha copy "$LOCAL" "$REMOTE" png:- | montage -mode concatenate "$LOCAL" png:- "$REMOTE" png:- | display -title "$BASE: Local | Diff | Remote" png:-'\'
As an executable (not recommended)
This is an alternative installation procedure that is unnecessary if the Git configuration is used. It's not recommended because it requires an understanding of PATH lookup
curl https://raw.githubusercontent.com/niedzielski/git-diff-img/master/git-diff-img -o ~/bin/git-diff-img &&
chmod +x ~/bin/git-diff-img
Usage
Execute against images only: git diff-img **.png
Tips
💡 Resizing the diff to fit your monitor…
Newer versions of ImageMagick support resizing the diff to fit large images to
the screen. Consider adding
the -resize argument
to display if you want this behavior. Eg, instead of:
display -title "$BASE: Local | Diff | Remote" png:-
Try:
display -resize 1900x -title "$BASE: Local | Diff | Remote" png:-
Examples
Version a font sprite sheet and see the concrete difference in each commit.
Links
License (Public Domain)
All code is public domain and may be used without limitation.
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