![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/git-pull.sh b/git-pull.sh
index 75c36100a2f858bcf2663d2b4560654787963175..28441aca8ac1129dacad10d4bd040df64e34d134 100755 (executable)
--- a/git-pull.sh
+++ b/git-pull.sh
SUBDIRECTORY_OK=Yes
OPTIONS_SPEC=
. git-sh-setup
-set_reflog_action "pull $*"
+set_reflog_action "pull${1+ $*}"
require_work_tree
cd_to_toplevel
-test -z "$(git ls-files -u)" ||
- die "You are in the middle of a conflicted merge."
-strategy_args= no_stat= no_commit= squash= no_ff= log_arg=
+die_conflict () {
+ git diff-index --cached --name-status -r --ignore-submodules HEAD --
+ if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
+ die "Pull is not possible because you have unmerged files.
+Please, fix them up in the work tree, and then use 'git add/rm <file>'
+as appropriate to mark resolution, or use 'git commit -a'."
+ else
+ die "Pull is not possible because you have unmerged files."
+ fi
+}
+
+die_merge () {
+ if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
+ die "You have not concluded your merge (MERGE_HEAD exists).
+Please, commit your changes before you can merge."
+ else
+ die "You have not concluded your merge (MERGE_HEAD exists)."
+ fi
+}
+
+test -z "$(git ls-files -u)" || die_conflict
+test -f "$GIT_DIR/MERGE_HEAD" && die_merge
+
+strategy_args= diffstat= no_commit= squash= no_ff= ff_only=
+log_arg= verbosity= progress= recurse_submodules=
+merge_args=
curr_branch=$(git symbolic-ref -q HEAD)
-curr_branch_short=$(echo "$curr_branch" | sed "s|refs/heads/||")
+curr_branch_short="${curr_branch#refs/heads/}"
rebase=$(git config --bool branch.$curr_branch_short.rebase)
+dry_run=
while :
do
case "$1" in
+ -q|--quiet)
+ verbosity="$verbosity -q" ;;
+ -v|--verbose)
+ verbosity="$verbosity -v" ;;
+ --progress)
+ progress=--progress ;;
+ --no-progress)
+ progress=--no-progress ;;
-n|--no-stat|--no-summary)
- no_stat=-n ;;
+ diffstat=--no-stat ;;
--stat|--summary)
- no_stat=$1 ;;
+ diffstat=--stat ;;
--log|--no-log)
log_arg=$1 ;;
--no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit)
no_ff=--ff ;;
--no-ff)
no_ff=--no-ff ;;
+ --ff-only)
+ ff_only=--ff-only ;;
-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
--strateg=*|--strategy=*|\
-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
esac
strategy_args="${strategy_args}-s $strategy "
;;
+ -X*)
+ case "$#,$1" in
+ 1,-X)
+ usage ;;
+ *,-X)
+ xx="-X $(git rev-parse --sq-quote "$2")"
+ shift ;;
+ *,*)
+ xx=$(git rev-parse --sq-quote "$1") ;;
+ esac
+ merge_args="$merge_args$xx "
+ ;;
-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)
+ --recurse-submodules)
+ recurse_submodules=--recurse-submodules
+ ;;
+ --recurse-submodules=*)
+ recurse_submodules="$1"
+ ;;
+ --no-recurse-submodules)
+ recurse_submodules=--no-recurse-submodules
+ ;;
+ --d|--dr|--dry|--dry-|--dry-r|--dry-ru|--dry-run)
+ dry_run=--dry-run
+ ;;
+ -h|--h|--he|--hel|--help|--help-|--help-a|--help-al|--help-all)
usage
;;
*)
esac
done
+ if test true = "$rebase"
+ then
+ op_type=rebase
+ op_prep=against
+ else
+ op_type=merge
+ op_prep=with
+ fi
+
curr_branch=${curr_branch#refs/heads/}
+ upstream=$(git config "branch.$curr_branch.merge")
+ remote=$(git config "branch.$curr_branch.remote")
- echo "You asked me to pull without telling me which branch you"
- echo "want to merge with, and 'branch.${curr_branch}.merge' in"
- echo "your configuration file does not tell me either. Please"
- echo "name 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 on the refspec."
- 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."
+ if [ $# -gt 1 ]; then
+ if [ "$rebase" = true ]; then
+ printf "There is no candidate for rebasing against "
+ else
+ printf "There are no candidates for merging "
+ fi
+ echo "among 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 '$1', but did not specify"
+ echo "a branch. Because this is not the default configured remote"
+ echo "for your current branch, you must specify a branch on the command line."
+ elif [ -z "$curr_branch" -o -z "$upstream" ]; then
+ . git-parse-remote
+ error_on_missing_default_upstream "pull" $op_type $op_prep \
+ "git pull <repository> <refspec>"
+ else
+ echo "Your configuration specifies to $op_type $op_prep the ref '${upstream#refs/heads/}'"
+ echo "from the remote, but no such ref was fetched."
+ fi
exit 1
}
test true = "$rebase" && {
- git update-index --ignore-submodules --refresh &&
- git diff-files --ignore-submodules --quiet &&
- git diff-index --ignore-submodules --cached --quiet HEAD -- ||
- die "refusing to pull with rebase: your working tree is not up-to-date"
-
+ if ! git rev-parse -q --verify HEAD >/dev/null
+ then
+ # On an unborn branch
+ if test -f "$GIT_DIR/index"
+ then
+ die "updating an unborn branch with changes added to the index"
+ fi
+ else
+ require_clean_work_tree "pull with rebase" "Please commit or stash them."
+ fi
+ oldremoteref= &&
. git-parse-remote &&
- origin="$1"
- test -z "$origin" && origin=$(get_default_remote)
- reflist="$(get_remote_refs_for_fetch "$@" 2>/dev/null |
- sed "s|refs/heads/\(.*\):|\1|")" &&
- oldremoteref="$(git rev-parse --verify \
- "refs/remotes/$origin/$reflist" 2>/dev/null)"
+ remoteref="$(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=$(git rev-parse --verify HEAD 2>/dev/null)
-git fetch --update-head-ok "$@" || exit 1
+orig_head=$(git rev-parse -q --verify HEAD)
+git fetch $verbosity $progress $dry_run $recurse_submodules --update-head-ok "$@" || exit 1
+test -z "$dry_run" || exit 0
-curr_head=$(git rev-parse --verify HEAD 2>/dev/null)
-if test "$curr_head" != "$orig_head"
+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.
# 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: fast-forwarding your working tree from"
echo >&2 "Warning: commit $orig_head."
- git update-index --refresh 2>/dev/null
+ git update-index -q --refresh
git read-tree -u -m "$orig_head" "$curr_head" ||
die 'Cannot fast-forward your working tree.
After making sure that you saved anything precious from
case "$merge_head" in
'')
- case $? in
- 0) error_on_no_merge_candidates "$@";;
- 1) echo >&2 "You are not currently on a branch; you must explicitly"
- echo >&2 "specify which branch you wish to merge:"
- echo >&2 " git pull <remote> <branch>"
- exit 1;;
- *) exit $?;;
- esac
+ error_on_no_merge_candidates "$@"
;;
?*' '?*)
if test -z "$orig_head"
then
- echo >&2 "Cannot merge multiple branches into empty head"
- exit 1
+ die "Cannot merge multiple branches into empty head"
+ fi
+ if test true = "$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 "" &&
- git read-tree --reset -u HEAD || exit 1
+ git update-ref -m "initial pull" HEAD $merge_head "$curr_head" &&
+ git read-tree -m -u HEAD || exit 1
exit
fi
+if test true = "$rebase"
+then
+ o=$(git show-branch --merge-base $curr_branch $merge_head $oldremoteref)
+ if test "$oldremoteref" = "$o"
+ then
+ unset oldremoteref
+ fi
+fi
+
merge_name=$(git fmt-merge-msg $log_arg <"$GIT_DIR/FETCH_HEAD") || exit
-test true = "$rebase" &&
- exec git-rebase $strategy_args --onto $merge_head \
- ${oldremoteref:-$merge_head}
-exec git-merge $no_stat $no_commit $squash $no_ff $log_arg $strategy_args \
- "$merge_name" HEAD $merge_head
+case "$rebase" in
+true)
+ eval="git-rebase $diffstat $strategy_args $merge_args"
+ eval="$eval --onto $merge_head ${oldremoteref:-$merge_head}"
+ ;;
+*)
+ eval="git-merge $diffstat $no_commit $squash $no_ff $ff_only"
+ eval="$eval $log_arg $strategy_args $merge_args $verbosity $progress"
+ eval="$eval \"\$merge_name\" HEAD $merge_head"
+ ;;
+esac
+eval "exec $eval"