[thirdparty/git.git] / 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"
}

set_reflog_action() {
	if [ -z "${GIT_REFLOG_ACTION:+set}" ]
	then
		GIT_REFLOG_ACTION="$*"
		export GIT_REFLOG_ACTION
	fi
}

git_editor() {
	GIT_EDITOR=${GIT_EDITOR:-$(git config core.editor || echo ${VISUAL:-${EDITOR}})}
	case "$GIT_EDITOR,$TERM" in
	,dumb)
		echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
		echo >&2 "or EDITOR. Tried to fall back to vi but terminal is dumb."
		echo >&2 "Please set one of these variables to an appropriate"
		echo >&2 "editor or run $0 with options that will not cause an"
		echo >&2 "editor to be invoked (e.g., -m or -F for git-commit)."
		exit 1
		;;
	esac
	"${GIT_EDITOR:-vi}" "$1"
}

is_bare_repository () {
	git rev-parse --is-bare-repository
}

cd_to_toplevel () {
	cdup=$(git rev-parse --show-cdup)
	if test ! -z "$cdup"
	then
		cd "$cdup" || {
			echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
			exit 1
		}
	fi
}

require_work_tree () {
	test $(git rev-parse --is-inside-work-tree) = true ||
	die "fatal: $0 cannot be used without a working tree."
}

get_author_ident_from_commit () {
	pick_author_script='
	/^author /{
		s/'\''/'\''\\'\'\''/g
		h
		s/^author \([^<]*\) <[^>]*> .*$/\1/
		s/'\''/'\''\'\'\''/g
		s/.*/GIT_AUTHOR_NAME='\''&'\''/p

		g
		s/^author [^<]* <\([^>]*\)> .*$/\1/
		s/'\''/'\''\'\'\''/g
		s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p

		g
		s/^author [^<]* <[^>]*> \(.*\)$/\1/
		s/'\''/'\''\'\'\''/g
		s/.*/GIT_AUTHOR_DATE='\''&'\''/p

		q
	}
	'
	encoding=$(git config i18n.commitencoding || echo UTF-8)
	git show -s --pretty=raw --encoding="$encoding" "$1" |
	LANG=C LC_ALL=C sed -ne "$pick_author_script"
}

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"}
Commit	Line	Data
b33e9666 LT	1	#!/bin/sh
b33e9666 LT	2	#
ae2b0f15 JH	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
365527ad JH	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
b33e9666	14	die() {
8098a178	15	echo >&2 "$@"
b33e9666 LT	16	exit 1
	17	}
	18
d025524d FK	19	usage() {
	20	die "Usage: $0 $USAGE"
	21	}
	22
f9474132 SP	23	set_reflog_action() {
	24	if [ -z "${GIT_REFLOG_ACTION:+set}" ]
	25	then
	26	GIT_REFLOG_ACTION="$*"
	27	export GIT_REFLOG_ACTION
	28	fi
	29	}
	30
ef0c2abf AR	31	git_editor() {
	32	GIT_EDITOR=${GIT_EDITOR:-$(git config core.editor \|\| echo ${VISUAL:-${EDITOR}})}
	33	case "$GIT_EDITOR,$TERM" in
	34	,dumb)
	35	echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
	36	echo >&2 "or EDITOR. Tried to fall back to vi but terminal is dumb."
	37	echo >&2 "Please set one of these variables to an appropriate"
	38	echo >&2 "editor or run $0 with options that will not cause an"
	39	echo >&2 "editor to be invoked (e.g., -m or -F for git-commit)."
	40	exit 1
	41	;;
	42	esac
	43	"${GIT_EDITOR:-vi}" "$1"
	44	}
	45
4b441f47	46	is_bare_repository () {
5be60078	47	git rev-parse --is-bare-repository
4b441f47 JH	48	}
4b441f47 JH	49
9fde9401	50	cd_to_toplevel () {
5be60078	51	cdup=$(git rev-parse --show-cdup)
9fde9401 JH	52	if test ! -z "$cdup"
	53	then
	54	cd "$cdup" \|\| {
	55	echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
	56	exit 1
	57	}
	58	fi
	59	}
	60
7eff28a9	61	require_work_tree () {
e90fdc39	62	test $(git rev-parse --is-inside-work-tree) = true \|\|
7eff28a9 SP	63	die "fatal: $0 cannot be used without a working tree."
	64	}
	65
0cae2346 JS	66	get_author_ident_from_commit () {
	67	pick_author_script='
	68	/^author /{
	69	s/'\''/'\''\\'\'\''/g
	70	h
	71	s/^author \([^<]\) <[^>]> .*$/\1/
	72	s/'\''/'\''\'\'\''/g
	73	s/.*/GIT_AUTHOR_NAME='\''&'\''/p
	74
	75	g
	76	s/^author [^<]* <\([^>]\)> .$/\1/
	77	s/'\''/'\''\'\'\''/g
	78	s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
	79
	80	g
	81	s/^author [^<]* <[^>]> \(.\)$/\1/
	82	s/'\''/'\''\'\'\''/g
	83	s/.*/GIT_AUTHOR_DATE='\''&'\''/p
	84
	85	q
	86	}
	87	'
	88	encoding=$(git config i18n.commitencoding \|\| echo UTF-8)
	89	git show -s --pretty=raw --encoding="$encoding" "$1" \|
	90	LANG=C LC_ALL=C sed -ne "$pick_author_script"
	91	}
	92
d025524d FK	93	if [ -z "$LONG_USAGE" ]
	94	then
	95	LONG_USAGE="Usage: $0 $USAGE"
	96	else
	97	LONG_USAGE="Usage: $0 $USAGE
	98
	99	$LONG_USAGE"
	100	fi
	101
	102	case "$1" in
cad1ed95	103	-h\|--h\|--he\|--hel\|--help)
d025524d FK	104	echo "$LONG_USAGE"
	105	exit
	106	esac
	107
c8769f76	108	# Make sure we are in a valid repository of a vintage we understand.
d025524d FK	109	if [ -z "$SUBDIRECTORY_OK" ]
	110	then
	111	: ${GIT_DIR=.git}
5be60078	112	GIT_DIR=$(GIT_DIR="$GIT_DIR" git rev-parse --git-dir) \|\| {
120b0dfb JH	113	exit=$?
	114	echo >&2 "You need to run this command from the toplevel of the working tree."
	115	exit $exit
	116	}
d025524d	117	else
5be60078	118	GIT_DIR=$(git rev-parse --git-dir) \|\| exit
d025524d	119	fi
c8769f76	120	: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}