Hi, I wrote the git pre-commit hook below. It is supposed to reject commits that contain large files (e.g. accidental commits by inexperienced users, think of "git add .")
Anyway, I tried this under Linux, but the target platform is Windows. As per Git design the hook name *must* be "pre-commit" (no .py extension). How will Windows know that Python should be run? And (should it be relevant): how does Windows know which Python version to invoke? I read about custom shebangs with Pylauncher. Is that my only option? (see: https://bitbucket.org/vinay.sajip/pylauncher, http://legacy.python.org/dev/peps/pep-0397/) In addition, I would really appreciate general feedback on the hook script below. Thanks! Albert-Jan albertjan@debian ~/Desktop/test_repo $ git config --global init.templatedir ~/Desktop/git_template_dir albertjan@debian ~/Desktop/test_repo $ cd ~/Desktop/git_template_dir albertjan@debian ~/Desktop/git_template_dir $ cat hooks/pre-commit #!/usr/bin/python #-*- mode: python -*- """Git pre-commit hook: reject large files""" import sys import os import re from subprocess import Popen, PIPE def git_filesize_hook(megabytes_cutoff=5, verbose=False): """Git pre-commit hook: Return error if the maximum file size in the HEAD revision exceeds <megabytes_cutoff>, succes (0) otherwise. You can bypass this hook by specifying '--no-verify' as an option in 'git commit'.""" if verbose: print os.getcwd() cmd = "git ls-tree --full-tree -r -l HEAD" git = Popen(cmd, shell=True, stdout=PIPE, cwd=os.getcwd()) get_size = lambda item: int(re.split(" +", item)[3].split("\t")[0]) sizes = map(get_size, git.stdout.readlines()) cut_off_bytes = megabytes_cutoff * 2 ** 20 if max(sizes) > cut_off_bytes: return ("ERROR: your commit contains at least one file " "that is larger than %d bytes" % cut_off_bytes) return 0 if __name__ == "__main__": sys.exit(git_filesize_hook(0.000001, True)) albertjan@debian ~/Desktop/git_template_dir $ cd - /home/antonia/Desktop/test_repo albertjan@debian ~/Desktop/test_repo $ git init ## this also fetches my own pre-commit hook from template_dir Initialized empty Git repository in /home/antonia/Desktop/test_repo/.git/ albertjan@debian ~/Desktop/test_repo $ touch foo.txt albertjan@debian ~/Desktop/test_repo $ git add foo.txt albertjan@debian ~/Desktop/test_repo $ ls -l .git/hooks total 4 -rw-r--r-- 1 albertjan albertjan 1468 May 22 14:49 pre-commit albertjan@debian ~/Desktop/test_repo $ git commit -a -m "commit" ##### hook does not yet work [master (root-commit) dc82f3d] commit 0 files changed create mode 100644 foo.txt albertjan@debian ~/Desktop/test_repo $ chmod +x .git/hooks/pre-commit ###### can I avoid this in Linux? What should I do in Windows? albertjan@debian ~/Desktop/test_repo $ echo "blaah\n" >> foo.txt albertjan@debian ~/Desktop/test_repo $ git commit -a -m "commit" ##### now the hook does its job /home/antonia/Desktop/test_repo ERROR: your commit contains at least one file that is larger than 1 bytes Regards, Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- https://mail.python.org/mailman/listinfo/python-list
