зеркало из https://github.com/microsoft/git.git
328 строки
6.5 KiB
Bash
328 строки
6.5 KiB
Bash
#!/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 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@@
|
|
|
|
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"
|
|
|
|
eval "$(
|
|
echo "$OPTIONS_SPEC" |
|
|
git rev-parse --parseopt $parseopt_extra -- "$@" ||
|
|
echo exit $?
|
|
)"
|
|
else
|
|
dashless=$(basename "$0" | sed -e 's/-/ /')
|
|
usage() {
|
|
die "usage: $dashless $USAGE"
|
|
}
|
|
|
|
if [ -z "$LONG_USAGE" ]
|
|
then
|
|
LONG_USAGE="usage: $dashless $USAGE"
|
|
else
|
|
LONG_USAGE="usage: $dashless $USAGE
|
|
|
|
$LONG_USAGE"
|
|
fi
|
|
|
|
case "$1" in
|
|
-h)
|
|
echo "$LONG_USAGE"
|
|
exit
|
|
esac
|
|
fi
|
|
|
|
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
|
|
: ${LESS=-FRSX}
|
|
export LESS
|
|
|
|
eval "$GIT_PAGER" '"$@"'
|
|
}
|
|
|
|
sane_grep () {
|
|
GREP_OPTIONS= LC_ALL=C grep "$@"
|
|
}
|
|
|
|
sane_egrep () {
|
|
GREP_OPTIONS= LC_ALL=C egrep "$@"
|
|
}
|
|
|
|
is_bare_repository () {
|
|
git rev-parse --is-bare-repository
|
|
}
|
|
|
|
cd_to_toplevel () {
|
|
cdup=$(git rev-parse --show-toplevel) &&
|
|
cd "$cdup" || {
|
|
echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
require_work_tree_exists () {
|
|
if test "z$(git rev-parse --is-bare-repository)" != zfalse
|
|
then
|
|
die "fatal: $0 cannot be used without a working tree."
|
|
fi
|
|
}
|
|
|
|
require_work_tree () {
|
|
test "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = true ||
|
|
die "fatal: $0 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
|
|
echo >&2 "Cannot $1: You have unstaged changes."
|
|
err=1
|
|
fi
|
|
|
|
if ! git diff-index --cached --quiet --ignore-submodules HEAD --
|
|
then
|
|
if [ $err = 0 ]
|
|
then
|
|
echo >&2 "Cannot $1: Your index contains uncommitted changes."
|
|
else
|
|
echo >&2 "Additionally, your index contains uncommitted changes."
|
|
fi
|
|
err=1
|
|
fi
|
|
|
|
if [ $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 "$1" in
|
|
/*)
|
|
return 0 ;;
|
|
esac
|
|
return 1
|
|
}
|
|
esac
|
|
|
|
# Make sure we are in a valid repository of a vintage we understand,
|
|
# if we require to be in a git repository.
|
|
if test -z "$NONGIT_OK"
|
|
then
|
|
GIT_DIR=$(git rev-parse --git-dir) || exit
|
|
if [ -z "$SUBDIRECTORY_OK" ]
|
|
then
|
|
test -z "$(git rev-parse --show-cdup)" || {
|
|
exit=$?
|
|
echo >&2 "You need to run this command from the toplevel of the working tree."
|
|
exit $exit
|
|
}
|
|
fi
|
|
test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || {
|
|
echo >&2 "Unable to determine absolute path of git directory"
|
|
exit 1
|
|
}
|
|
: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
|
|
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
|
|
}
|