87b939c0e4857ec9c9245c01f609a059788f656a
[git/git.git] / git-sh-setup.sh
1 #!/bin/sh
2 #
3 # This is included in commands that either have to be run from the toplevel
4 # of the repository, or with GIT_DIR environment variable properly.
5 # If the GIT_DIR does not look like the right correct git-repository,
6 # it dies.
7
8 # Having this variable in your environment would break scripts because
9 # you would cause "cd" to be be taken to unexpected places. If you
10 # like CDPATH, define it for your interactive shell sessions without
11 # exporting it.
12 unset CDPATH
13
14 die() {
15 echo >&2 "$@"
16 exit 1
17 }
18
19 usage() {
20 die "Usage: $0 $USAGE"
21 }
22
23 set_reflog_action() {
24 if [ -z "${GIT_REFLOG_ACTION:+set}" ]
25 then
26 GIT_REFLOG_ACTION="$*"
27 export GIT_REFLOG_ACTION
28 fi
29 }
30
31 if [ -z "$LONG_USAGE" ]
32 then
33 LONG_USAGE="Usage: $0 $USAGE"
34 else
35 LONG_USAGE="Usage: $0 $USAGE
36
37 $LONG_USAGE"
38 fi
39
40 case "$1" in
41 -h|--h|--he|--hel|--help)
42 echo "$LONG_USAGE"
43 exit
44 esac
45
46 # Make sure we are in a valid repository of a vintage we understand.
47 if [ -z "$SUBDIRECTORY_OK" ]
48 then
49 : ${GIT_DIR=.git}
50 GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || exit
51 else
52 GIT_DIR=$(git-rev-parse --git-dir) || exit
53 fi
54 : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}