CODEWITHSUNDEEP
git
Flux
Flux

Reputation: 419

Create commit message from commits in subrepo

Question: Is there a simple way to automatically extract the commit messages from a subrepo/submodule in git and create a commit message from these in the repo that contains the subrepo. I understand there is a way through some command line magic, the question is if there is some git functionality to do this.

Context:

I am working on a project that uses git subrepos.

Project A is the main project. In the folder structure of Project A, there is another project, Project B. Project B is itself a git repo, that is used as a subrepo (or submodule) in Project A. I work in Project B, and it falls on me to bump (update) the subrepo in Project A.

I do this through

cd /ProjectA/ProjectB
git pull
cd ../
git add .
git commit -m "Update Project B: <List of all changes since latest bump>"
git push

If there have been many commits since the latest bump, Writing <List of all changes since latest bump> becomes very tedious.

I wonder if there is a way to automatically extract the commit messages from Project B and create a commit message from these.

The dream solution would be to just have to write git commit --extractMessageFromSubrepo or something similar. I understand there is a way through some command line magic, the question is if there is some git functionality to do this.

Upvotes: 1

Views: 122

Answers (1)

phd
phd

Reputation: 94502

git diff --submodule + git commit:

git diff --submodule | git commit -F-

-F- means "read from file -" and the file - means the standard input, the pipe in this case.

Upvotes: 2

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