Generate git commit message from git-status. Will generate a commit message like "Added: file1.py file2.py file3.py Modified: file4.py file5.py Deleted: README.md Renamed: test.txt-> test2.txt". Put this in your .gitconfig.

..git-commit-status - Generate git commit message from git-status.md

git commit-status alias

An alias that will generate a git commit message staged changes as shown in git-status. Put this alias (section below) in your .gitconfig.

The message generated will be in the format of:

$ git status --porcelain
A file1.py
A file2.py
A file3.py
M file4.py
M file5.py
D README.md
R test.txt-> test2.txt
$ git commit-status
$ git log --no-decorate -n 1
bee4f8e Added: file1.py file2.py file3.py Modified: file4.py file5.py Deleted: README.md Renamed: test.txt-> test2.txt

Shared on Stack Overflow.

.gitconfig

[alias]
	# commit-status: generate a commit with message from git-status (staged changes).
	# Source: https://gist.github.com/erikw/654386d35ecfdb0354cd2b71763f19ae
	# Explanation:
	# - Get only staged changes
	# - Ignore changes in working area (2nd letter, the Y in XY as explained in $(git help status))
	# - + split label and file path to separate lines so we can process the labels separately
	# - Keep only the first label using awk
	# - Add newline before each label section so we later can truncate \n to put everything on one line
	# - Make labels human readable e.g. M -> Modified
	# - Put everything on one line and trim leading & trailing whitespaces
	commit-status = !" \
	        TMPFILE=$(mktemp /tmp/git-commit-status-message.XXX); \
		git status --porcelain \
		  | grep '^[MARCDT]' \
		  | sort \
		  | sed -re 's/^([[:upper:]])[[:upper:]]?[[:space:]]+/\\1:\\n/' \
		  | awk '!x[$0]++' \
		  | sed -re 's/^([[:upper:]]:)$/\\n\\1/' \
		  | sed -re 's/^M:$/Modified: /' \
		  | sed -re 's/^A:$/Added: /' \
		  | sed -re 's/^R:$/Renamed: /' \
		  | sed -re 's/^C:$/Copied: /' \
		  | sed -re 's/^D:$/Deleted: /' \
		  | sed -re 's/^T:$/File Type Changed: /' \
		  | tr '\n' ' ' | xargs \
		  > $TMPFILE; \
		git commit -F $TMPFILE; \
		rm -f $TMPFILE \
		"




	# If you want to have a [Yn] prompt showing the commit message before making the commit,
	# then simply inject the following lines below in to the alias above just before the
	# "git commit -F $TMPFILE; \" line:
		cat $TMPFILE; \
	        commit=''; \
	        while :; do \
			echo '> Commit with this message? [Yn]: '; \
			read commit; \
			([ -z \"$commit\" ] || [ \"$commit\" = y ] || [ \"$commit\" = Y ] || [ \"$commit\" = n ]) && break; \
	        done; \
		test \"$commit\" != n || exit; \

@erikw Btw just wondering is this bash script?

@Lukkian It's easy to add an interactive [Yn] prompt as well. Check this:

	commit-status = !"TMPFILE=$(mktemp /tmp/git-commit-status-message.XXX); \
		git status --porcelain \
		| sort \
		| sed -re '/^\\?\\?[[:space:]]/d' -e '/^[[:space:]]+[[:upper:]]/d' \
		| sed -re 's/^([[:upper:]]+)[[:space:]]+/\\1:\\n/g' \
		| awk '!x[$0]++' \
		| sed -re 's/^([[:upper:]]+:)[[:space:]]+/\\1 /g' \
		| sed -re 's/^([[:upper:]]*)M[[:upper:]]*:$/\\1 Modified: /g' \
		| sed -re 's/^([[:upper:]]*)R[[:upper:]]*:$/\\1 Renamed: /g' \
		| sed -re 's/^([[:upper:]]*)A[[:upper:]]*:$/\\1 Added: /g' \
		| sed -re 's/^([[:upper:]]*)D[[:upper:]]*:$/\\1 Deleted: /g' \
		| sed -re 's/^([[:upper:]]*)T[[:upper:]]*:$/\\1 File Type Changed: /g' \
		| tr '\n' ' ' \
		| sed -re 's/(^|[[:alpha:]]+:[[:space:]])[[:space:]]*/\\1/g' > $TMPFILE; \
	        cat $TMPFILE; \
	        echo; \
	        commit=''; \
	        while :; do \
			echo '> Commit with this message? [Yn]: '; \
			read commit; \
			([ -z \"$commit\" ] || [ \"$commit\" = y ] || [ \"$commit\" = Y ] || [ \"$commit\" = n ]) && break; \
	        done; \
		if [ \"$commit\" != n ]; then \
			git commit -F $TMPFILE; \
		fi; \
		rm -f $TMPFILE"

It will look like

$ git commit-status
Added: file_a  Modified: file_b file_c
> Commit with this message? [Yn]:

@isayakmondal Yes it's pure bash baked in to a string that git execute. The ! in the beginning tells git it's shell script to execute in the string. It sure would make sense to put this in a commit-status.sh script and just call that. The reason why I made it like this is that I wanted to provide a copy-and-pase:able solution that one can put directly in a .git-config. But if you want to modify and extend this solution, you should really put it to a bash script yes :).

@erikw wow nice! thank you so much.

Cool, I just know the basics of shell programming but never really got deep into it. This now makes me wanna learn it deeply. Btw is this same thing possible with other languages like python or c?

@isayakmondal Cool, go for it! You can use any language to execute the commands needed to get the input for the program, meaning that a Python/C/whatever can execute $ git status --porcelain, get the output of this command, then do the logic of formatting the message, and execute git commit with this message.

I would recommend looking in to Python; it's easiest to pick up and yet powerful :)

This solution was made in bash to not require dependencie e.g. Python, so that it can be used directly by anyone. But if you want to make something proper, bash is likely not the right answer for many cases.

Thank you so much for this. @erikw
I swear just one last question. Is the formatting of the message done using REGEX? I've tried to learn it many times but it's a lot of syntaxes to memorize.

@isayakmondal Yes that's correct. For example in

sed -re 's/^([[:upper:]]+:)[[:space:]]+/\\1 /g'

this part is a regex

s/^([[:upper:]]+:)[[:space:]]+/\\1 /g

Tip: learn regex interactivly at https://regex101.com/
The O'Reilly book "Mastering Regular Expressions" is really good!

@erikw Hey, hope you're doing well. I just found a new bug.
You can clearly see that two files have been modified but the commit message has only 1.

$ git status --porcelain
M  Equal_Coins.cpp
 M Task.cpp

$ git commit-status
Modified: Equal_Coins.cpp 
> Commit with this message? [Y/n]:
n

Looks like there's a space before M Task.cpp that might be causing the issue, but why is there a space in the first place?
Please have a look.

• Update - Sorry my bad, I forgot to do git add . lol.

@isayakmondal Hello!

Yes I was just about to write that, that a space before means that the M is is for the file in the working area, not in the staged area (after git add).

Nevertheless, I started to look at this alias and felt a need to simplify it a bit. I worked out an updated version. As you are an active user of this one, would you mind trying if it works for you as well? It works when I've tested it, but it would be great to hear if it works also for at least another person!

	# commit-status: generate a commit with message from git-status (staged changes).
	# Source: https://gist.github.com/erikw/654386d35ecfdb0354cd2b71763f19ae
	# Explanation:
	# - Get only staged changes
	# - Ignore changes in working area (2nd letter, the Y in XY as explained in $(git help status)) + split X from the filename
	# - Keep only the first label using awk
	# - Add newline before each label section
	# - Make labels human readable e.g. M -> Modified
	# - Put everything on one line and trim leading & trailing whitespaces
	commit-status = !" \
	        TMPFILE=$(mktemp /tmp/git-commit-status-message.XXX); \
		git status --porcelain \
		  | grep '^[MARCDT]' \
		  | sort \
		  | sed -re 's/^([[:upper:]])[[:upper:]]?[[:space:]]+/\\1:\\n/' \
		  | awk '!x[$0]++' \
		  | sed -re 's/^([[:upper:]]:)$/\\n\\1/' \
		  | sed -re 's/^M:$/Modified: /' \
		  | sed -re 's/^A:$/Added: /' \
		  | sed -re 's/^R:$/Renamed: /' \
		  | sed -re 's/^C:$/Copied: /' \
		  | sed -re 's/^D:$/Deleted: /' \
		  | sed -re 's/^T:$/File Type Changed: /' \
		  | tr '\n' ' ' | xargs \
		  > $TMPFILE; \
		git commit -F $TMPFILE; \
		rm -f $TMPFILE \
		"

Sorry for the late reply, this seems to work fine till now but the version with [Y/n] prompt is better.

@isayakmondal Thank you for testing. I added then [Yn] prompt to the Gist as well :)

If you want to add this alias as a oneliner from Powershell:
git config --global alias.cs "! TMPFILE=`$(mktemp /tmp/git-commit-status-message.XXX); git status --porcelain | grep '^[MARCDT]' | sort | sed -re 's/^([[:upper:]])[[:upper:]]?[[:space:]]+/\1:\n/' | awk '!x[`$0]++' | sed -re 's/^([[:upper:]]:)`$/\n\1/' | sed -re 's/^M:`$/Modified: /' | sed -re 's/^A:`$/Added: /' | sed -re 's/^R:`$/Renamed: /' | sed -re 's/^C:`$/Copied: /' | sed -re 's/^D:`$/Deleted: /' | sed -re 's/^T:`$/File Type Changed: /' | xargs > `$TMPFILE; git commit -F `$TMPFILE; rm -f `$TMPFILE"

Thanks at @tomeo. That's a pretty massive one-liner there 😄