mirror of
https://github.com/git/git.git
synced 2024-11-18 17:03:56 +01:00
399 lines
9.1 KiB
Bash
399 lines
9.1 KiB
Bash
# This shell scriplet is meant to be included by other shell scripts
|
|
# to set up some variables pointing at the normal git directories and
|
|
# a few helper shell functions.
|
|
|
|
# Having this variable in your environment would break scripts because
|
|
# you would cause "cd" to be taken to unexpected places. If you
|
|
# like CDPATH, define it for your interactive shell sessions without
|
|
# exporting it.
|
|
# But we protect ourselves from such a user mistake nevertheless.
|
|
unset CDPATH
|
|
|
|
# Similarly for IFS, but some shells (e.g. FreeBSD 7.2) are buggy and
|
|
# do not equate an unset IFS with IFS with the default, so here is
|
|
# an explicit SP HT LF.
|
|
IFS='
|
|
'
|
|
|
|
git_broken_path_fix () {
|
|
case ":$PATH:" in
|
|
*:$1:*) : ok ;;
|
|
*)
|
|
PATH=$(
|
|
SANE_TOOL_PATH="$1"
|
|
IFS=: path= sep=
|
|
set x $PATH
|
|
shift
|
|
for elem
|
|
do
|
|
case "$SANE_TOOL_PATH:$elem" in
|
|
(?*:/bin | ?*:/usr/bin)
|
|
path="$path$sep$SANE_TOOL_PATH"
|
|
sep=:
|
|
SANE_TOOL_PATH=
|
|
esac
|
|
path="$path$sep$elem"
|
|
sep=:
|
|
done
|
|
echo "$path"
|
|
)
|
|
;;
|
|
esac
|
|
}
|
|
|
|
# @@BROKEN_PATH_FIX@@
|
|
|
|
# Source git-sh-i18n for gettext support.
|
|
. "$(git --exec-path)/git-sh-i18n"
|
|
|
|
die () {
|
|
die_with_status 1 "$@"
|
|
}
|
|
|
|
die_with_status () {
|
|
status=$1
|
|
shift
|
|
printf >&2 '%s\n' "$*"
|
|
exit "$status"
|
|
}
|
|
|
|
GIT_QUIET=
|
|
|
|
say () {
|
|
if test -z "$GIT_QUIET"
|
|
then
|
|
printf '%s\n' "$*"
|
|
fi
|
|
}
|
|
|
|
if test -n "$OPTIONS_SPEC"; then
|
|
usage() {
|
|
"$0" -h
|
|
exit 1
|
|
}
|
|
|
|
parseopt_extra=
|
|
[ -n "$OPTIONS_KEEPDASHDASH" ] &&
|
|
parseopt_extra="--keep-dashdash"
|
|
[ -n "$OPTIONS_STUCKLONG" ] &&
|
|
parseopt_extra="$parseopt_extra --stuck-long"
|
|
|
|
eval "$(
|
|
echo "$OPTIONS_SPEC" |
|
|
git rev-parse --parseopt $parseopt_extra -- "$@" ||
|
|
echo exit $?
|
|
)"
|
|
else
|
|
dashless=$(basename -- "$0" | sed -e 's/-/ /')
|
|
usage() {
|
|
die "$(eval_gettext "usage: \$dashless \$USAGE")"
|
|
}
|
|
|
|
if [ -z "$LONG_USAGE" ]
|
|
then
|
|
LONG_USAGE="$(eval_gettext "usage: \$dashless \$USAGE")"
|
|
else
|
|
LONG_USAGE="$(eval_gettext "usage: \$dashless \$USAGE
|
|
|
|
$LONG_USAGE")"
|
|
fi
|
|
|
|
case "$1" in
|
|
-h)
|
|
echo "$LONG_USAGE"
|
|
exit
|
|
esac
|
|
fi
|
|
|
|
# Set the name of the end-user facing command in the reflog when the
|
|
# script may update refs. When GIT_REFLOG_ACTION is already set, this
|
|
# will not overwrite it, so that a scripted Porcelain (e.g. "git
|
|
# rebase") can set it to its own name (e.g. "rebase") and then call
|
|
# another scripted Porcelain (e.g. "git am") and a call to this
|
|
# function in the latter will keep the name of the end-user facing
|
|
# program (e.g. "rebase") in GIT_REFLOG_ACTION, ensuring whatever it
|
|
# does will be record as actions done as part of the end-user facing
|
|
# operation (e.g. "rebase").
|
|
#
|
|
# NOTE NOTE NOTE: consequently, after assigning a specific message to
|
|
# GIT_REFLOG_ACTION when calling a "git" command to record a custom
|
|
# reflog message, do not leave that custom value in GIT_REFLOG_ACTION,
|
|
# after you are done. Other callers of "git" commands that rely on
|
|
# writing the default "program name" in reflog expect the variable to
|
|
# contain the value set by this function.
|
|
#
|
|
# To use a custom reflog message, do either one of these three:
|
|
#
|
|
# (a) use a single-shot export form:
|
|
# GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: preparing frotz" \
|
|
# git command-that-updates-a-ref
|
|
#
|
|
# (b) save the original away and restore:
|
|
# SAVED_ACTION=$GIT_REFLOG_ACTION
|
|
# GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: preparing frotz"
|
|
# git command-that-updates-a-ref
|
|
# GIT_REFLOG_ACITON=$SAVED_ACTION
|
|
#
|
|
# (c) assign the variable in a subshell:
|
|
# (
|
|
# GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: preparing frotz"
|
|
# git command-that-updates-a-ref
|
|
# )
|
|
set_reflog_action() {
|
|
if [ -z "${GIT_REFLOG_ACTION:+set}" ]
|
|
then
|
|
GIT_REFLOG_ACTION="$*"
|
|
export GIT_REFLOG_ACTION
|
|
fi
|
|
}
|
|
|
|
git_editor() {
|
|
if test -z "${GIT_EDITOR:+set}"
|
|
then
|
|
GIT_EDITOR="$(git var GIT_EDITOR)" || return $?
|
|
fi
|
|
|
|
eval "$GIT_EDITOR" '"$@"'
|
|
}
|
|
|
|
git_pager() {
|
|
if test -t 1
|
|
then
|
|
GIT_PAGER=$(git var GIT_PAGER)
|
|
else
|
|
GIT_PAGER=cat
|
|
fi
|
|
for vardef in @@PAGER_ENV@@
|
|
do
|
|
var=${vardef%%=*}
|
|
eval ": \"\${$vardef}\" && export $var"
|
|
done
|
|
|
|
eval "$GIT_PAGER" '"$@"'
|
|
}
|
|
|
|
sane_grep () {
|
|
GREP_OPTIONS= LC_ALL=C grep @@SANE_TEXT_GREP@@ "$@"
|
|
}
|
|
|
|
sane_egrep () {
|
|
GREP_OPTIONS= LC_ALL=C egrep @@SANE_TEXT_GREP@@ "$@"
|
|
}
|
|
|
|
is_bare_repository () {
|
|
git rev-parse --is-bare-repository
|
|
}
|
|
|
|
cd_to_toplevel () {
|
|
cdup=$(git rev-parse --show-toplevel) &&
|
|
cd "$cdup" || {
|
|
gettextln "Cannot chdir to \$cdup, the toplevel of the working tree" >&2
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
require_work_tree_exists () {
|
|
if test "z$(git rev-parse --is-bare-repository)" != zfalse
|
|
then
|
|
program_name=$0
|
|
die "$(eval_gettext "fatal: \$program_name cannot be used without a working tree.")"
|
|
fi
|
|
}
|
|
|
|
require_work_tree () {
|
|
test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true || {
|
|
program_name=$0
|
|
die "$(eval_gettext "fatal: \$program_name cannot be used without a working tree.")"
|
|
}
|
|
}
|
|
|
|
require_clean_work_tree () {
|
|
git rev-parse --verify HEAD >/dev/null || exit 1
|
|
git update-index -q --ignore-submodules --refresh
|
|
err=0
|
|
|
|
if ! git diff-files --quiet --ignore-submodules
|
|
then
|
|
action=$1
|
|
case "$action" in
|
|
rebase)
|
|
gettextln "Cannot rebase: You have unstaged changes." >&2
|
|
;;
|
|
"rewrite branches")
|
|
gettextln "Cannot rewrite branches: You have unstaged changes." >&2
|
|
;;
|
|
"pull with rebase")
|
|
gettextln "Cannot pull with rebase: You have unstaged changes." >&2
|
|
;;
|
|
*)
|
|
eval_gettextln "Cannot \$action: You have unstaged changes." >&2
|
|
;;
|
|
esac
|
|
err=1
|
|
fi
|
|
|
|
if ! git diff-index --cached --quiet --ignore-submodules HEAD --
|
|
then
|
|
if test $err = 0
|
|
then
|
|
action=$1
|
|
case "$action" in
|
|
rebase)
|
|
gettextln "Cannot rebase: Your index contains uncommitted changes." >&2
|
|
;;
|
|
"pull with rebase")
|
|
gettextln "Cannot pull with rebase: Your index contains uncommitted changes." >&2
|
|
;;
|
|
*)
|
|
eval_gettextln "Cannot \$action: Your index contains uncommitted changes." >&2
|
|
;;
|
|
esac
|
|
else
|
|
gettextln "Additionally, your index contains uncommitted changes." >&2
|
|
fi
|
|
err=1
|
|
fi
|
|
|
|
if test $err = 1
|
|
then
|
|
test -n "$2" && echo "$2" >&2
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
# Generate a sed script to parse identities from a commit.
|
|
#
|
|
# Reads the commit from stdin, which should be in raw format (e.g., from
|
|
# cat-file or "--pretty=raw").
|
|
#
|
|
# The first argument specifies the ident line to parse (e.g., "author"), and
|
|
# the second specifies the environment variable to put it in (e.g., "AUTHOR"
|
|
# for "GIT_AUTHOR_*"). Multiple pairs can be given to parse author and
|
|
# committer.
|
|
pick_ident_script () {
|
|
while test $# -gt 0
|
|
do
|
|
lid=$1; shift
|
|
uid=$1; shift
|
|
printf '%s' "
|
|
/^$lid /{
|
|
s/'/'\\\\''/g
|
|
h
|
|
s/^$lid "'\([^<]*\) <[^>]*> .*$/\1/'"
|
|
s/.*/GIT_${uid}_NAME='&'/p
|
|
|
|
g
|
|
s/^$lid "'[^<]* <\([^>]*\)> .*$/\1/'"
|
|
s/.*/GIT_${uid}_EMAIL='&'/p
|
|
|
|
g
|
|
s/^$lid "'[^<]* <[^>]*> \(.*\)$/@\1/'"
|
|
s/.*/GIT_${uid}_DATE='&'/p
|
|
}
|
|
"
|
|
done
|
|
echo '/^$/q'
|
|
}
|
|
|
|
# Create a pick-script as above and feed it to sed. Stdout is suitable for
|
|
# feeding to eval.
|
|
parse_ident_from_commit () {
|
|
LANG=C LC_ALL=C sed -ne "$(pick_ident_script "$@")"
|
|
}
|
|
|
|
# Parse the author from a commit given as an argument. Stdout is suitable for
|
|
# feeding to eval to set the usual GIT_* ident variables.
|
|
get_author_ident_from_commit () {
|
|
encoding=$(git config i18n.commitencoding || echo UTF-8)
|
|
git show -s --pretty=raw --encoding="$encoding" "$1" -- |
|
|
parse_ident_from_commit author AUTHOR
|
|
}
|
|
|
|
# Clear repo-local GIT_* environment variables. Useful when switching to
|
|
# another repository (e.g. when entering a submodule). See also the env
|
|
# list in git_connect()
|
|
clear_local_git_env() {
|
|
unset $(git rev-parse --local-env-vars)
|
|
}
|
|
|
|
# Generate a virtual base file for a two-file merge. Uses git apply to
|
|
# remove lines from $1 that are not in $2, leaving only common lines.
|
|
create_virtual_base() {
|
|
sz0=$(wc -c <"$1")
|
|
@@DIFF@@ -u -La/"$1" -Lb/"$1" "$1" "$2" | git apply --no-add
|
|
sz1=$(wc -c <"$1")
|
|
|
|
# If we do not have enough common material, it is not
|
|
# worth trying two-file merge using common subsections.
|
|
expr $sz0 \< $sz1 \* 2 >/dev/null || : >"$1"
|
|
}
|
|
|
|
|
|
# Platform specific tweaks to work around some commands
|
|
case $(uname -s) in
|
|
*MINGW*)
|
|
# Windows has its own (incompatible) sort and find
|
|
sort () {
|
|
/usr/bin/sort "$@"
|
|
}
|
|
find () {
|
|
/usr/bin/find "$@"
|
|
}
|
|
# git sees Windows-style pwd
|
|
pwd () {
|
|
builtin pwd -W
|
|
}
|
|
is_absolute_path () {
|
|
case "$1" in
|
|
[/\\]* | [A-Za-z]:*)
|
|
return 0 ;;
|
|
esac
|
|
return 1
|
|
}
|
|
;;
|
|
*)
|
|
is_absolute_path () {
|
|
case "$1" in
|
|
/*)
|
|
return 0 ;;
|
|
esac
|
|
return 1
|
|
}
|
|
esac
|
|
|
|
# Make sure we are in a valid repository of a vintage we understand,
|
|
# if we require to be in a git repository.
|
|
git_dir_init () {
|
|
GIT_DIR=$(git rev-parse --git-dir) || exit
|
|
if [ -z "$SUBDIRECTORY_OK" ]
|
|
then
|
|
test -z "$(git rev-parse --show-cdup)" || {
|
|
exit=$?
|
|
gettextln "You need to run this command from the toplevel of the working tree." >&2
|
|
exit $exit
|
|
}
|
|
fi
|
|
test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || {
|
|
gettextln "Unable to determine absolute path of git directory" >&2
|
|
exit 1
|
|
}
|
|
: "${GIT_OBJECT_DIRECTORY="$(git rev-parse --git-path objects)"}"
|
|
}
|
|
|
|
if test -z "$NONGIT_OK"
|
|
then
|
|
git_dir_init
|
|
fi
|
|
|
|
peel_committish () {
|
|
case "$1" in
|
|
:/*)
|
|
peeltmp=$(git rev-parse --verify "$1") &&
|
|
git rev-parse --verify "${peeltmp}^0"
|
|
;;
|
|
*)
|
|
git rev-parse --verify "${1}^0"
|
|
;;
|
|
esac
|
|
}
|