mirror of
https://github.com/git/git.git
synced 2024-11-18 07:03:57 +01:00
e1447e38c0
When git-merge updates HEAD as a result of a merge record what happened during the merge into the reflog associated with HEAD (if any). The log reports who caused the update (git-merge or git-pull, by invoking git-merge), what the remote ref names were and the type of merge process used. The merge information can be useful when reviewing a reflog for a branch such as `master` where fast forward and trivial in index merges might be common as the user tracks an upstream. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
108 lines
2.6 KiB
Bash
Executable File
108 lines
2.6 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.'
|
|
. git-sh-setup
|
|
|
|
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) || die "Pulling into a black hole?"
|
|
git-fetch --update-head-ok --reflog-action=pull "$@" || exit 1
|
|
|
|
curr_head=$(git-rev-parse --verify HEAD)
|
|
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: $orig_head commit."
|
|
git-update-index --refresh 2>/dev/null
|
|
git-read-tree -u -m "$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 "$merge_head" in
|
|
'')
|
|
echo >&2 "No changes."
|
|
exit 0
|
|
;;
|
|
?*' '?*)
|
|
var=`git-repo-config --get pull.octopus`
|
|
if test -n "$var"
|
|
then
|
|
strategy_default_args="-s $var"
|
|
fi
|
|
;;
|
|
*)
|
|
var=`git-repo-config --get pull.twohead`
|
|
if test -n "$var"
|
|
then
|
|
strategy_default_args="-s $var"
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
case "$strategy_args" in
|
|
'')
|
|
strategy_args=$strategy_default_args
|
|
;;
|
|
esac
|
|
|
|
merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") || exit
|
|
git-merge "--reflog-action=pull $*" \
|
|
$no_summary $no_commit $squash $strategy_args \
|
|
"$merge_name" HEAD $merge_head
|