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git/git-sh-setup.sh
Junio C Hamano 120b0dfbed Explain "Not a git repository: '.git'".
Andy Parkins noticed that the error message some "whole tree"
oriented commands emit is stated misleadingly when they refused
to run from a subdirectory.

We could probably allow some of them to work from a subdirectory
but that is a semantic change that could have unintended side
effects, so let's start at first by rewording the error message
to be easier to read without doing anything else to be safe.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-12 12:26:39 -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
die() {
echo >&2 "$@"
exit 1
}
usage() {
die "Usage: $0 $USAGE"
}
set_reflog_action() {
if [ -z "${GIT_REFLOG_ACTION:+set}" ]
then
GIT_REFLOG_ACTION="$*"
export GIT_REFLOG_ACTION
fi
}
is_bare_repository () {
git-repo-config --bool --get core.bare ||
case "$GIT_DIR" in
.git | */.git) echo false ;;
*) echo true ;;
esac
}
require_work_tree () {
test $(is_bare_repository) = false ||
die "fatal: $0 cannot be used without a working tree."
}
if [ -z "$LONG_USAGE" ]
then
LONG_USAGE="Usage: $0 $USAGE"
else
LONG_USAGE="Usage: $0 $USAGE
$LONG_USAGE"
fi
case "$1" in
-h|--h|--he|--hel|--help)
echo "$LONG_USAGE"
exit
esac
# Make sure we are in a valid repository of a vintage we understand.
if [ -z "$SUBDIRECTORY_OK" ]
then
: ${GIT_DIR=.git}
GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || {
exit=$?
echo >&2 "You need to run this command from the toplevel of the working tree."
exit $exit
}
else
GIT_DIR=$(git-rev-parse --git-dir) || exit
fi
: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}