CODEWITHSUNDEEP
node.jsgitversion
wololoo
wololoo

Reputation: 175

How to read latest commit hash programmatically?

I want to print the latest commit hash in my Node.js application.

I found a similar discussion here, but it's not what I have in mind. I want to read this information from within Node.js, without running git commands in a terminal.

So if possible, I want to read the .git folder with fs, find the latest commit hash and write it to a variable. This file looks relevant: .git/logs/refs/heads/master.

Can I simply read the last non-empty line of this file and parse the commit hash from there? Any pitfalls I should look for? Any better ways? It's safe to assume I have only one branch (master)

Thanks for any help!

Upvotes: -1

Views: 490

Answers (1)

phd
phd

Reputation: 94726

To get the hash for the current (pointed to by the HEAD) commit:

git rev-parse HEAD

To get the hash for the last commit on master branch (in case you moved HEAD to a different commit using git checkout or git switch):

git rev-parse master

Upvotes: 1

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