git/git-sh-setup.sh
Junio C Hamano 2a1ddc58e4 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>
2005-11-25 15:55:50 -08:00

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#!/bin/sh
#
# This is included in commands that either have to be run from the toplevel
# of the repository, or with GIT_DIR environment variable properly.
# If the GIT_DIR does not look like the right correct git-repository,
# it dies.
# Having this variable in your environment would break scripts because
# you would cause "cd" to be be taken to unexpected places. If you
# like CDPATH, define it for your interactive shell sessions without
# exporting it.
unset CDPATH
: ${GIT_DIR=.git}
: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
die() {
echo >&2 "$@"
exit 1
}
# Make sure we are in a valid repository of a vintage we understand.
GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit