CODEWITHSUNDEEP
gitbash
Lee Olayvar
Lee Olayvar

Reputation: 3810

Git Bash script to check whether repo has any commits?

I have a script that i need to act differently based on if there are any, that is one or more, commits. What is the best way to do this?

In pseudo code it would look something like this..

#!/bin/bash

if [[ `git log_count` == "0" ]]; then
    echo "No commits exist for this repo."
    # Do stuff..
else
    echo "One or more commits do exist!"
    # Do other stuff
fi

Any ideas?

Upvotes: 0

Views: 645

Answers (2)

VonC
VonC

Reputation: 1328712

You could also check the result of:

git rev-parse --verify HEAD

(after this thread:)

  1. It's a plumbing command, and so less likely to change its behavior versus "git diff".
  2. The seems more obvious to me. rev-parse --verify is meant to ask "is this a valid object name?"

It is slightly different from your show-ref.
Yours asks "is there anything in refs/heads in this repository?"
Mine asks "does the current HEAD exist?"

In practice, they are both reasonable tests, since once you have a branch, it is very difficult to get HEAD to point to something invalid short of editing manually to some bogus value. But you might prefer one over the other depending on what you are trying to say.

Upvotes: 2

horsh
horsh

Reputation: 2779

The trivial from the top of my head is

$ git log | egrep -c  "^commit"
1493

Upvotes: 0

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