git-send-email: Do not make @-less message ID
[git/git.git] / git-sh-setup.sh
... / ...
CommitLineData
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.
12unset CDPATH
13
14die() {
15 echo >&2 "$@"
16 exit 1
17}
18
19usage() {
20 die "Usage: $0 $USAGE"
21}
22
23set_reflog_action() {
24 if [ -z "${GIT_REFLOG_ACTION:+set}" ]
25 then
26 GIT_REFLOG_ACTION="$*"
27 export GIT_REFLOG_ACTION
28 fi
29}
30
31is_bare_repository () {
32 git-config --bool --get core.bare ||
33 case "$GIT_DIR" in
34 .git | */.git) echo false ;;
35 *) echo true ;;
36 esac
37}
38
39cd_to_toplevel () {
40 cdup=$(git-rev-parse --show-cdup)
41 if test ! -z "$cdup"
42 then
43 cd "$cdup" || {
44 echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
45 exit 1
46 }
47 fi
48}
49
50require_work_tree () {
51 test $(is_bare_repository) = false &&
52 test $(git-rev-parse --is-inside-git-dir) = false ||
53 die "fatal: $0 cannot be used without a working tree."
54}
55
56if [ -z "$LONG_USAGE" ]
57then
58 LONG_USAGE="Usage: $0 $USAGE"
59else
60 LONG_USAGE="Usage: $0 $USAGE
61
62$LONG_USAGE"
63fi
64
65case "$1" in
66 -h|--h|--he|--hel|--help)
67 echo "$LONG_USAGE"
68 exit
69esac
70
71# Make sure we are in a valid repository of a vintage we understand.
72if [ -z "$SUBDIRECTORY_OK" ]
73then
74 : ${GIT_DIR=.git}
75 GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || {
76 exit=$?
77 echo >&2 "You need to run this command from the toplevel of the working tree."
78 exit $exit
79 }
80else
81 GIT_DIR=$(git-rev-parse --git-dir) || exit
82fi
83: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}