Re: Getting rid of "hint: Using 'master' as the name for the initial branch." when not initializing a repository with pygit

["Michal Suchánek" <msuchanek@suse.de>]

On Tue, Feb 01, 2022 at 07:41:28PM +0100, Michal Suchánek wrote:
> Hello,
> 
> I am running some tests of a project that uses pygit, and the test
> creates a test repository .. using pygit.
> 
> I noticed that in some environments the default branch warning is
> displayed and not others because the git version varies.
> 
> The warning is just noise in the test log so I would like to avoid it,
> and I would like to find a solution that works for git that predates the
> introduction of this warning and the option to silence it as well as
> the future git versions in which the default is subject to change.
> 
> AFAICT there is no clean way to do it. I can set up the global option to
> whatever but I don't want to do that just to run tests.
> 
> I could set the repo local option but before calling
> pygit2.init_repository() there is no repository to configure, and after
> it is too late because I expect the message to be printed by this call.
> 
> Also I cannot rely on pygit to have some latest bells and whistles
> because like git it varies across environments and the whole point of
> running the test in different environments is to verify that it works
> with whatever tool versions are avaialble there.

Actually, I found that the code uses a mix of pygit2 and direct git
calls, and it's the direct call to git init that prints the warning
which can be fixed trivially by using pygit:
@@ -460,7 +460,7 @@ class TestMergeTool(unittest.TestCase):
         self.ks_dir = tempfile.mkdtemp(prefix="gs_ks")
         os.chdir(self.ks_dir)
 
-        subprocess.check_call(("git", "init", "./",), stdout=subprocess.DEVNULL)
+        pygit2.init_repository("./")
         subprocess.check_call(
             ("git", "config", "--add", "mergetool.git-sort.cmd",
              "%s $LOCAL $BASE $REMOTE $MERGED" % (

which begs the question how would I fix it if I was not using pygit. The
git version that does not produce the warning also does not support -b
so it cannot be be universally used with git init. Is there some
reasonable waey to detect this?

Thanks

Michal