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v0.5.1
https://github.com/git/git
23 January 2022, 05:21:09 UTC
Revision 5a2282de13c4da13f979185e652c8a08e2481fd1 authored by Junio C Hamano on 08 January 2006, 22:22:19 UTC, committed by Junio C Hamano on 08 January 2006, 22:22:19 UTC 
GIT 1.1.0
2 parent s e77f489 + 8fc11b5
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Tip revision: 5a2282de13c4da13f979185e652c8a08e2481fd1 authored by Junio C Hamano on 08 January 2006, 22:22:19 UTC
GIT 1.1.0
Tip revision: 5a2282d
git-sh-setup.sh 
#!/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"
}

if [ -z "$LONG_USAGE" ]
then
	LONG_USAGE="Usage: $0 $USAGE"
else
	LONG_USAGE="Usage: $0 $USAGE

$LONG_USAGE"
fi

case "$1" in
	--h|--he|--hel|--help)
	echo "$LONG_USAGE"
	exit
esac

if [ -z "$SUBDIRECTORY_OK" ]
then
	: ${GIT_DIR=.git}
	: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}

	# Make sure we are in a valid repository of a vintage we understand.
	GIT_DIR="$GIT_DIR" git-var GIT_AUTHOR_IDENT >/dev/null || exit
else
	GIT_DIR=$(git-rev-parse --git-dir) || exit
fi
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