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git-sh-setup: move the repository check to a core program. 

Any core commands that use setup_git_directory() now check if
given GIT_DIR is really a valid repository, so the same check in
git-sh-setup can use it without reimplementing it in shell.
This commit changes git-sh-setup to use git-var command for
that, although any other commands would do.

Note that we export GIT_DIR explicitly when calling git-var;
without it, the caller of this script would use GIT_DIR that we
return (which is to assume ./.git unless the caller has it
elsewhere) while git-var would go up to find a .git directory in
our parent directories, which would be checking a different
directory from what our callers will be using.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2005-11-25 15:52:57 -08:00
parent 5e7bfe2567
commit 2a1ddc58e4
1 changed files with 2 additions and 7 deletions
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git-sh-setup.sh
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@ -19,10 +19,5 @@ die() {
exit 1
}
case "$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD 2>/dev/null)" in
refs/*) : ;;
*) false ;;
esac &&
[ -d "$GIT_DIR/refs" ] &&
[ -d "$GIT_OBJECT_DIRECTORY/" ] ||
die "Not a git repository."
# Make sure we are in a valid repository of a vintage we understand.
GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit