mirror of
https://github.com/git/git
synced 2024-08-27 03:29:21 +00:00
77c29b4aca
This reverts commitc0ecb07048"git-pull.sh: Fix call to git-merge for new command format" and commitb81e00a965"git-merge: a deprecation notice of the ancient command line syntax". They caused a "git pull" (without any arguments, and without any local commits---only to update to the other side) to warn that commit log message is ignored because the merge resulted in a fast-forward. Another possible solution is to add an extra option to "git merge" so that "git pull" can tell it that the message given is not coming from the end user (the canned message is passed just in case the merge resulted in a non-ff and caused commit), but I think it is easier _not_ to deprecate the old syntax. Signed-off-by: Junio C Hamano <gitster@pobox.com>
223 lines
6.5 KiB
Bash
Executable file
223 lines
6.5 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-stat] [--[no-]commit] [--[no-]squash] [--[no-]ff] [-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
|
|
OPTIONS_SPEC=
|
|
. 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= diffstat= no_commit= squash= no_ff= ff_only=
|
|
log_arg= verbosity=
|
|
curr_branch=$(git symbolic-ref -q HEAD)
|
|
curr_branch_short=$(echo "$curr_branch" | sed "s|refs/heads/||")
|
|
rebase=$(git config --bool branch.$curr_branch_short.rebase)
|
|
while :
|
|
do
|
|
case "$1" in
|
|
-q|--quiet)
|
|
verbosity="$verbosity -q" ;;
|
|
-v|--verbose)
|
|
verbosity="$verbosity -v" ;;
|
|
-n|--no-stat|--no-summary)
|
|
diffstat=--no-stat ;;
|
|
--stat|--summary)
|
|
diffstat=--stat ;;
|
|
--log|--no-log)
|
|
log_arg=$1 ;;
|
|
--no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit)
|
|
no_commit=--no-commit ;;
|
|
--c|--co|--com|--comm|--commi|--commit)
|
|
no_commit=--commit ;;
|
|
--sq|--squ|--squa|--squas|--squash)
|
|
squash=--squash ;;
|
|
--no-sq|--no-squ|--no-squa|--no-squas|--no-squash)
|
|
squash=--no-squash ;;
|
|
--ff)
|
|
no_ff=--ff ;;
|
|
--no-ff)
|
|
no_ff=--no-ff ;;
|
|
--ff-only)
|
|
ff_only=--ff-only ;;
|
|
-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
|
|
--strateg=*|--strategy=*|\
|
|
-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
|
|
case "$#,$1" in
|
|
*,*=*)
|
|
strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
|
|
1,*)
|
|
usage ;;
|
|
*)
|
|
strategy="$2"
|
|
shift ;;
|
|
esac
|
|
strategy_args="${strategy_args}-s $strategy "
|
|
;;
|
|
-r|--r|--re|--reb|--reba|--rebas|--rebase)
|
|
rebase=true
|
|
;;
|
|
--no-r|--no-re|--no-reb|--no-reba|--no-rebas|--no-rebase)
|
|
rebase=false
|
|
;;
|
|
-h|--h|--he|--hel|--help)
|
|
usage
|
|
;;
|
|
*)
|
|
# Pass thru anything that may be meant for fetch.
|
|
break
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
error_on_no_merge_candidates () {
|
|
exec >&2
|
|
for opt
|
|
do
|
|
case "$opt" in
|
|
-t|--t|--ta|--tag|--tags)
|
|
echo "Fetching tags only, you probably meant:"
|
|
echo " git fetch --tags"
|
|
exit 1
|
|
esac
|
|
done
|
|
|
|
curr_branch=${curr_branch#refs/heads/}
|
|
upstream=$(git config "branch.$curr_branch.merge")
|
|
remote=$(git config "branch.$curr_branch.remote")
|
|
|
|
if [ $# -gt 1 ]; then
|
|
echo "There are no candidates for merging in the refs that you just fetched."
|
|
echo "Generally this means that you provided a wildcard refspec which had no"
|
|
echo "matches on the remote end."
|
|
elif [ $# -gt 0 ] && [ "$1" != "$remote" ]; then
|
|
echo "You asked to pull from the remote '$1', but did not specify"
|
|
echo "a branch to merge. Because this is not the default configured remote"
|
|
echo "for your current branch, you must specify a branch on the command line."
|
|
elif [ -z "$curr_branch" ]; then
|
|
echo "You are not currently on a branch, so I cannot use any"
|
|
echo "'branch.<branchname>.merge' in your configuration file."
|
|
echo "Please specify which branch you want to merge on the command"
|
|
echo "line and try again (e.g. 'git pull <repository> <refspec>')."
|
|
echo "See git-pull(1) for details."
|
|
elif [ -z "$upstream" ]; then
|
|
echo "You asked me to pull without telling me which branch you"
|
|
echo "want to merge with, and 'branch.${curr_branch}.merge' in"
|
|
echo "your configuration file does not tell me either. Please"
|
|
echo "specify which branch you want to merge on the command line and"
|
|
echo "try again (e.g. 'git pull <repository> <refspec>')."
|
|
echo "See git-pull(1) for details."
|
|
echo
|
|
echo "If you often merge with the same branch, you may want to"
|
|
echo "configure the following variables in your configuration"
|
|
echo "file:"
|
|
echo
|
|
echo " branch.${curr_branch}.remote = <nickname>"
|
|
echo " branch.${curr_branch}.merge = <remote-ref>"
|
|
echo " remote.<nickname>.url = <url>"
|
|
echo " remote.<nickname>.fetch = <refspec>"
|
|
echo
|
|
echo "See git-config(1) for details."
|
|
else
|
|
echo "Your configuration specifies to merge the ref '${upstream#refs/heads/}' from the"
|
|
echo "remote, but no such ref was fetched."
|
|
fi
|
|
exit 1
|
|
}
|
|
|
|
test true = "$rebase" && {
|
|
if ! git rev-parse -q --verify HEAD >/dev/null
|
|
then
|
|
# On an unborn branch
|
|
if test -f "$GIT_DIR/index"
|
|
then
|
|
die "updating an unborn branch with changes added to the index"
|
|
fi
|
|
else
|
|
git update-index --ignore-submodules --refresh &&
|
|
git diff-files --ignore-submodules --quiet &&
|
|
git diff-index --ignore-submodules --cached --quiet HEAD -- ||
|
|
die "refusing to pull with rebase: your working tree is not up-to-date"
|
|
fi
|
|
oldremoteref= &&
|
|
. git-parse-remote &&
|
|
remoteref="$(get_remote_merge_branch "$@" 2>/dev/null)" &&
|
|
oldremoteref="$(git rev-parse -q --verify "$remoteref")" &&
|
|
for reflog in $(git rev-list -g $remoteref 2>/dev/null)
|
|
do
|
|
if test "$reflog" = "$(git merge-base $reflog $curr_branch)"
|
|
then
|
|
oldremoteref="$reflog"
|
|
break
|
|
fi
|
|
done
|
|
}
|
|
orig_head=$(git rev-parse -q --verify HEAD)
|
|
git fetch $verbosity --update-head-ok "$@" || exit 1
|
|
|
|
curr_head=$(git rev-parse -q --verify HEAD)
|
|
if test -n "$orig_head" && 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 $orig_head."
|
|
git update-index -q --refresh
|
|
git read-tree -u -m "$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 "$merge_head" in
|
|
'')
|
|
error_on_no_merge_candidates "$@"
|
|
;;
|
|
?*' '?*)
|
|
if test -z "$orig_head"
|
|
then
|
|
die "Cannot merge multiple branches into empty head"
|
|
fi
|
|
if test true = "$rebase"
|
|
then
|
|
die "Cannot rebase onto multiple branches"
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
if test -z "$orig_head"
|
|
then
|
|
git update-ref -m "initial pull" HEAD $merge_head "$curr_head" &&
|
|
git read-tree --reset -u HEAD || exit 1
|
|
exit
|
|
fi
|
|
|
|
merge_name=$(git fmt-merge-msg $log_arg <"$GIT_DIR/FETCH_HEAD") || exit
|
|
test true = "$rebase" &&
|
|
exec git-rebase $diffstat $strategy_args --onto $merge_head \
|
|
${oldremoteref:-$merge_head}
|
|
exec git-merge $diffstat $no_commit $squash $no_ff $ff_only $log_arg $strategy_args \
|
|
"$merge_name" HEAD $merge_head $verbosity
|