git-svn: bugfix: allow SVN:: lib users to track the root of the repository
[git/git.git] / git-sh-setup.sh
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1#!/bin/sh
2#
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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.
b33e9666 7
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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
b33e9666 14die() {
8098a178 15 echo >&2 "$@"
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16 exit 1
17}
18
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19usage() {
20 die "Usage: $0 $USAGE"
21}
22
23if [ -z "$LONG_USAGE" ]
24then
25 LONG_USAGE="Usage: $0 $USAGE"
26else
27 LONG_USAGE="Usage: $0 $USAGE
28
29$LONG_USAGE"
30fi
31
32case "$1" in
cad1ed95 33 -h|--h|--he|--hel|--help)
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34 echo "$LONG_USAGE"
35 exit
36esac
37
38if [ -z "$SUBDIRECTORY_OK" ]
39then
40 : ${GIT_DIR=.git}
41 : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
42
43 # Make sure we are in a valid repository of a vintage we understand.
4890f62b 44 GIT_DIR="$GIT_DIR" git repo-config --get core.nosuch >/dev/null
4bbdfab7 45 if test $? = 128
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46 then
47 exit
48 fi
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49else
50 GIT_DIR=$(git-rev-parse --git-dir) || exit
51fi