Does Anybody successfully run git-svn on M1 CPU Mac?

Question

I've tried so many ways posted on Homebrew issues.Always fail to run git-svn

Can't locate SVN/Core.pm in @INC (you may need to install the
SVN::Core module) (@INC contains:
/opt/homebrew/Cellar/git/2.30.1/share/perl5
/Applications/Xcode.app/Contents/Developer/Library/Perl/5.28/darwin-thread-multi-2level
/Library/Developer/CommandLineTools/Library/Perl/5.28/darwin-thread-multi-2level
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/site_perl/5.32.0/darwin-2level
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/site_perl/5.32.0
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/5.32.0/darwin-2level
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/5.32.0) at
/opt/homebrew/Cellar/git/2.30.1/share/perl5/Git/SVN/Utils.pm line 6.
BEGIN failed--compilation aborted at
/opt/homebrew/Cellar/git/2.30.1/share/perl5/Git/SVN/Utils.pm line 6.
Compilation failed in require at
/opt/homebrew/Cellar/git/2.30.1/share/perl5/Git/SVN.pm line 25. BEGIN
failed--compilation aborted at
/opt/homebrew/Cellar/git/2.30.1/share/perl5/Git/SVN.pm line 32.
Compilation failed in require at
/opt/homebrew/Cellar/git/2.30.1/libexec/git-core/git-svn line 23.
BEGIN failed--compilation aborted at
/opt/homebrew/Cellar/git/2.30.1/libexec/git-core/git-svn line 23.

Git-SVN do not support M1 Mac?

Answer 1

It's unlikely that M1 has anything to do with this problem.

git-svn is written in Perl, and the interpreter itself appears to be working OK. It did produce a backtrace; the error would be different had it major troubles to run at all (due to a special machine you're using or whatnot).

If you could read carefully the output, you could easily understand what's the problem.

Let's just do that together.

Can't locate SVN/Core.pm in @INC

This says git-svn (a perl script) tries to import/include/require a module SVN/Core.pm. The file for that module could not be found.

Can't locate SVN/Core.pm in @INC

Even without intimate Perl knowledge, you could guess that @INC is the "include path" variable. List of directories where Perl looks for imported modules.

Reading further.

@INC contains:
/opt/homebrew/Cellar/git/2.30.1/share/perl5
/Applications/Xcode.app/Contents/Developer/Library/Perl/5.28/darwin-thread-multi-2level
/Library/Developer/CommandLineTools/Library/Perl/5.28/darwin-thread-multi-2level
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/site_perl/5.32.0/darwin-2level
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/site_perl/5.32.0
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/5.32.0/darwin-2level
/Users/admin/perl5/perlbrew/perls/perl-5.32.0/lib/5.32.0)

This is exactly the current setting for @INC. It shows you that exact list of directories. Read it carefully, don't skip over! We're expecting to see something git-svn-related there, right?

Problem 1: your Perl module path appears to contain some junk. There're 2 version of Perl intermixed in there (5.28 & 5.32.0) which can't be a good sign. Did you frantically install multiple versions never cleaning up?..

Let's read the traceback next:

/opt/homebrew/Cellar/git/2.30.1/share/perl5/Git/SVN/Utils.pm line 6.
/opt/homebrew/Cellar/git/2.30.1/share/perl5/Git/SVN.pm line 25. 
/opt/homebrew/Cellar/git/2.30.1/libexec/git-core/git-svn line 23.

git-svn includes Git::SVN. Obviously, the Git/SVN.pm is located correctly by Perl; which indicates that at least some of the @INC paths do contain git & the corresponding git-svn modules. The homebrew package is what got picked up.

Next in the chain is Git::SVN::Utils which imports SVN::Core on line 6 thus triggering the crash.

Notice there's no SVN/Core.pm file, neither in Git-2.30.1 Homebrew bottle for Big Sure (that's what you get from brew install git on your M1) — neither in Git source!

That's because it comes from a separate library (SVN::Core, not Git::SVN::Core).

Problem 2: git-svn needs to have the libsvn-perl library installed, it's a dependency.

Can you find / -path '*/SVN/Core.pm' ? Is the dependency installed somewhere Perl is not looking?

Problem 3: the git Homebrew formula should either declare the dependency onto libsvn-perl (which somebody should first create & upload as I'm not finding it packaged), or ship the dependency together with git, e.g. in the /git/2.30.2/share/perl5/FromCPAN/ subdir of the "bottle"... because it's not there.

I won't go much further. What happened according to my hunch, is that nobody cared. SVN as such is past century technology (think about it); the test section of the Git formula does check that sending emails works, but ignores git-svn.

You're welcome to contribute to the community effort which is Open Source. Fix the bug yourself if you care.

This has nothing to do with your hardware.

Answer 2

I figured it out, posted on Homebrew issues #52490 page: https://github.com/Homebrew/homebrew-core/issues/52490#issuecomment-793464504