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* GIT_DIR not passed to script if hooksPath is set
@ 2019-04-01 14:14 Jan Ziak
  0 siblings, 0 replies; only message in thread
From: Jan Ziak @ 2019-04-01 14:14 UTC (permalink / raw)
  To: Git Mailing List

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If git commit executes .git/hooks/post-commit it will pass GIT_DIR env
variable to the script. However, if hooksPath is set in
$HOME/.gitconfig, git commit executes hooksPath/post-commit without
passing GIT_DIR env variable to the script.

Expected behavior: GIT_DIR is passed to hooksPath/post-commit
Actual behavior: GIT_DIR isn't passed to hooksPath/post-commit

Please run the attached shell script in an empty directory to
reproduce this issue. The script is using strace to determine whether
GIT_DIR is passed to the hook script. The script will run "git gui":
the user is expected to simply commit changes from the gui and then
close the gui for the script to finish. The script is exploiting the
fact that (currently) command-line "git commit" and graphical "git
gui" commit are invoking different commit hooks.

Script output:
  - !!! missing GIT_DIR in git-commit.strace
  - execve(".git/hooks/post-commit", [... "GIT_DIR=.git" ...

$ cat ~/.gitconfig
    hooksPath = /home/atom/dev/git-hooks

git version 2.21.0


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