533b70390e
This updates five commands (merge, pull, rebase, revert and cherry-pick) so that they can be started from a subdirectory. This may not actually be what we want to do. These commands are inherently whole-tree operations, and an inexperienced user may mistakenly expect a "git pull" from a subdirectory would merge only the subdirectory the command started from. Signed-off-by: Junio C Hamano <junkio@cox.net>
112 lines
2.9 KiB
Bash
Executable File
112 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2005 Junio C Hamano
|
|
#
|
|
# Fetch one or more remote refs and merge it/them into the current HEAD.
|
|
|
|
USAGE='[-n | --no-summary] [--no-commit] [-s strategy]... [<fetch-options>] <repo> <head>...'
|
|
LONG_USAGE='Fetch one or more remote refs and merge it/them into the current HEAD.'
|
|
SUBDIRECTORY_OK=Yes
|
|
. git-sh-setup
|
|
set_reflog_action "pull $*"
|
|
require_work_tree
|
|
cd_to_toplevel
|
|
|
|
test -z "$(git ls-files -u)" ||
|
|
die "You are in the middle of a conflicted merge."
|
|
|
|
strategy_args= no_summary= no_commit= squash=
|
|
while case "$#,$1" in 0) break ;; *,-*) ;; *) break ;; esac
|
|
do
|
|
case "$1" in
|
|
-n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\
|
|
--no-summa|--no-summar|--no-summary)
|
|
no_summary=-n ;;
|
|
--no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit)
|
|
no_commit=--no-commit ;;
|
|
--sq|--squ|--squa|--squas|--squash)
|
|
squash=--squash ;;
|
|
-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
|
|
--strateg=*|--strategy=*|\
|
|
-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
|
|
case "$#,$1" in
|
|
*,*=*)
|
|
strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
|
|
1,*)
|
|
usage ;;
|
|
*)
|
|
strategy="$2"
|
|
shift ;;
|
|
esac
|
|
strategy_args="${strategy_args}-s $strategy "
|
|
;;
|
|
-h|--h|--he|--hel|--help)
|
|
usage
|
|
;;
|
|
-*)
|
|
# Pass thru anything that is meant for fetch.
|
|
break
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
orig_head=$(git-rev-parse --verify HEAD 2>/dev/null)
|
|
git-fetch --update-head-ok "$@" || exit 1
|
|
|
|
curr_head=$(git-rev-parse --verify HEAD 2>/dev/null)
|
|
if test "$curr_head" != "$orig_head"
|
|
then
|
|
# The fetch involved updating the current branch.
|
|
|
|
# The working tree and the index file is still based on the
|
|
# $orig_head commit, but we are merging into $curr_head.
|
|
# First update the working tree to match $curr_head.
|
|
|
|
echo >&2 "Warning: fetch updated the current branch head."
|
|
echo >&2 "Warning: fast forwarding your working tree from"
|
|
echo >&2 "Warning: commit $orig_head."
|
|
git-update-index --refresh 2>/dev/null
|
|
git-read-tree -u -m "$orig_head" "$curr_head" ||
|
|
die 'Cannot fast-forward your working tree.
|
|
After making sure that you saved anything precious from
|
|
$ git diff '$orig_head'
|
|
output, run
|
|
$ git reset --hard
|
|
to recover.'
|
|
|
|
fi
|
|
|
|
merge_head=$(sed -e '/ not-for-merge /d' \
|
|
-e 's/ .*//' "$GIT_DIR"/FETCH_HEAD | \
|
|
tr '\012' ' ')
|
|
|
|
case "$merge_head" in
|
|
'')
|
|
curr_branch=$(git-symbolic-ref HEAD | \
|
|
sed -e 's|^refs/heads/||')
|
|
echo >&2 "Warning: No merge candidate found because value of config option
|
|
\"branch.${curr_branch}.merge\" does not match any remote branch fetched."
|
|
echo >&2 "No changes."
|
|
exit 0
|
|
;;
|
|
?*' '?*)
|
|
if test -z "$orig_head"
|
|
then
|
|
echo >&2 "Cannot merge multiple branches into empty head"
|
|
exit 1
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
if test -z "$orig_head"
|
|
then
|
|
git-update-ref -m "initial pull" HEAD $merge_head "" &&
|
|
git-read-tree --reset -u HEAD || exit 1
|
|
exit
|
|
fi
|
|
|
|
merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") || exit
|
|
exec git-merge $no_summary $no_commit $squash $strategy_args \
|
|
"$merge_name" HEAD $merge_head
|