#
# 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=
+OPTIONS_KEEPDASHDASH=
+OPTIONS_STUCKLONG=Yes
+OPTIONS_SPEC="\
+git pull [options] [<repository> [<refspec>...]]
+
+Fetch one or more remote refs and integrate it/them with the current HEAD.
+--
+v,verbose be more verbose
+q,quiet be more quiet
+progress force progress reporting
+
+ Options related to merging
+r,rebase?false|true|preserve incorporate changes by rebasing rather than merging
+n! do not show a diffstat at the end of the merge
+stat show a diffstat at the end of the merge
+summary (synonym to --stat)
+log?n add (at most <n>) entries from shortlog to merge commit message
+squash create a single commit instead of doing a merge
+commit perform a commit if the merge succeeds (default)
+e,edit edit message before committing
+ff allow fast-forward
+ff-only! abort if fast-forward is not possible
+verify-signatures verify that the named commit has a valid GPG signature
+s,strategy=strategy merge strategy to use
+X,strategy-option=option option for selected merge strategy
+S,gpg-sign?key-id GPG sign commit
+
+ Options related to fetching
+all fetch from all remotes
+a,append append to .git/FETCH_HEAD instead of overwriting
+upload-pack=path path to upload pack on remote end
+f,force force overwrite of local branch
+t,tags fetch all tags and associated objects
+p,prune prune remote-tracking branches no longer on remote
+recurse-submodules?on-demand control recursive fetching of submodules
+dry-run dry run
+k,keep keep downloaded pack
+depth=depth deepen history of shallow clone
+unshallow convert to a complete repository
+update-shallow accept refs that update .git/shallow
+refmap=refmap specify fetch refmap
+"
+test $# -gt 0 && args="$*"
. git-sh-setup
-set_reflog_action "pull $*"
-require_work_tree
+. git-sh-i18n
+set_reflog_action "pull${args+ $args}"
+require_work_tree_exists
cd_to_toplevel
die_conflict () {
git diff-index --cached --name-status -r --ignore-submodules HEAD --
if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
- die "Pull is not possible because you have unmerged files.
+ die "$(gettext "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'."
+as appropriate to mark resolution and make a commit.")"
else
- die "Pull is not possible because you have unmerged files."
+ die "$(gettext "Pull is not possible because you have unmerged files.")"
fi
}
die_merge () {
if [ $(git config --bool --get advice.resolveConflict || echo true) = "true" ]; then
- die "You have not concluded your merge (MERGE_HEAD exists).
-Please, commit your changes before you can merge."
+ die "$(gettext "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)."
+ die "$(gettext "You have not concluded your merge (MERGE_HEAD exists).")"
fi
}
test -z "$(git ls-files -u)" || die_conflict
test -f "$GIT_DIR/MERGE_HEAD" && die_merge
+bool_or_string_config () {
+ git config --bool "$1" 2>/dev/null || git config "$1"
+}
+
strategy_args= diffstat= no_commit= squash= no_ff= ff_only=
-log_arg= verbosity= progress= recurse_submodules=
-merge_args=
+log_arg= verbosity= progress= recurse_submodules= verify_signatures=
+merge_args= edit= rebase_args= all= append= upload_pack= force= tags= prune=
+keep= depth= unshallow= update_shallow= refmap=
curr_branch=$(git symbolic-ref -q HEAD)
curr_branch_short="${curr_branch#refs/heads/}"
-rebase=$(git config --bool branch.$curr_branch_short.rebase)
+rebase=$(bool_or_string_config branch.$curr_branch_short.rebase)
+if test -z "$rebase"
+then
+ rebase=$(bool_or_string_config pull.rebase)
+fi
+
+# Setup default fast-forward options via `pull.ff`
+pull_ff=$(bool_or_string_config pull.ff)
+case "$pull_ff" in
+true)
+ no_ff=--ff
+ ;;
+false)
+ no_ff=--no-ff
+ ;;
+only)
+ ff_only=--ff-only
+ ;;
+esac
+
+
dry_run=
while :
do
verbosity="$verbosity -v" ;;
--progress)
progress=--progress ;;
+ --no-progress)
+ progress=--no-progress ;;
-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)
+ --log|--log=*|--no-log)
+ log_arg="$1" ;;
+ --no-commit)
no_commit=--no-commit ;;
- --c|--co|--com|--comm|--commi|--commit)
+ --commit)
no_commit=--commit ;;
- --sq|--squ|--squa|--squas|--squash)
+ -e|--edit)
+ edit=--edit ;;
+ --no-edit)
+ edit=--no-edit ;;
+ --squash)
squash=--squash ;;
- --no-sq|--no-squ|--no-squa|--no-squas|--no-squash)
+ --no-squash)
squash=--no-squash ;;
--ff)
no_ff=--ff ;;
no_ff=--no-ff ;;
--ff-only)
ff_only=--ff-only ;;
- -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
- --strateg=*|--strategy=*|\
- -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
- case "$#,$1" in
- *,*=*)
- strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
- 1,*)
- usage ;;
- *)
- strategy="$2"
- shift ;;
- esac
- strategy_args="${strategy_args}-s $strategy "
+ -s*|--strategy=*)
+ strategy_args="$strategy_args $1"
+ ;;
+ -X*|--strategy-option=*)
+ merge_args="$merge_args $(git rev-parse --sq-quote "$1")"
;;
- -X*)
- case "$#,$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$xx "
+ -r*|--rebase=*)
+ rebase="${1#*=}"
;;
- -r|--r|--re|--reb|--reba|--rebas|--rebase)
+ --rebase)
rebase=true
;;
- --no-r|--no-re|--no-reb|--no-reba|--no-rebas|--no-rebase)
+ --no-rebase)
rebase=false
;;
--recurse-submodules)
--no-recurse-submodules)
recurse_submodules=--no-recurse-submodules
;;
- --d|--dr|--dry|--dry-|--dry-r|--dry-ru|--dry-run)
+ --verify-signatures)
+ verify_signatures=--verify-signatures
+ ;;
+ --no-verify-signatures)
+ verify_signatures=--no-verify-signatures
+ ;;
+ --gpg-sign|-S)
+ gpg_sign_args=-S
+ ;;
+ --gpg-sign=*)
+ gpg_sign_args=$(git rev-parse --sq-quote "-S${1#--gpg-sign=}")
+ ;;
+ -S*)
+ gpg_sign_args=$(git rev-parse --sq-quote "$1")
+ ;;
+ --dry-run)
dry_run=--dry-run
;;
- -h|--h|--he|--hel|--help|--help-|--help-a|--help-al|--help-all)
+ --all|--no-all)
+ all=$1 ;;
+ -a|--append|--no-append)
+ append=$1 ;;
+ --upload-pack=*|--no-upload-pack)
+ upload_pack=$1 ;;
+ -f|--force|--no-force)
+ force="$force $1" ;;
+ -t|--tags|--no-tags)
+ tags=$1 ;;
+ -p|--prune|--no-prune)
+ prune=$1 ;;
+ -k|--keep|--no-keep)
+ keep=$1 ;;
+ --depth=*|--no-depth)
+ depth=$1 ;;
+ --unshallow|--no-unshallow)
+ unshallow=$1 ;;
+ --update-shallow|--no-update-shallow)
+ update_shallow=$1 ;;
+ --refmap=*|--no-refmap)
+ refmap=$1 ;;
+ -h|--help-all)
usage
;;
- *)
- # Pass thru anything that may be meant for fetch.
+ --)
+ shift
break
;;
+ *)
+ usage
+ ;;
esac
shift
done
+case "$rebase" in
+preserve)
+ rebase=true
+ rebase_args=--preserve-merges
+ ;;
+true|false|'')
+ ;;
+*)
+ echo "Invalid value for --rebase, should be true, false, or preserve"
+ usage
+ exit 1
+ ;;
+esac
+
error_on_no_merge_candidates () {
exec >&2
- for opt
- do
- case "$opt" in
- -t|--t|--ta|--tag|--tags)
- echo "Fetching tags only, you probably meant:"
- echo " git fetch --tags"
- exit 1
- esac
- done
if test true = "$rebase"
then
op_prep=with
fi
- curr_branch=${curr_branch#refs/heads/}
- upstream=$(git config "branch.$curr_branch.merge")
- remote=$(git config "branch.$curr_branch.remote")
+ upstream=$(git config "branch.$curr_branch_short.merge")
+ remote=$(git config "branch.$curr_branch_short.remote")
if [ $# -gt 1 ]; then
if [ "$rebase" = true ]; 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" ]; 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 remote branch you want to use 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 $op_type $op_prep, and 'branch.${curr_branch}.merge' in"
- echo "your configuration file does not tell me, either. Please"
- echo "specify which branch you want to use 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 $op_type $op_prep the same branch, you may want to"
- echo "use something like the following in your configuration file:"
- echo
- echo " [branch \"${curr_branch}\"]"
- echo " remote = <nickname>"
- echo " merge = <remote-ref>"
- test rebase = "$op_type" &&
- echo " rebase = true"
- echo
- echo " [remote \"<nickname>\"]"
- echo " url = <url>"
- echo " fetch = <refspec>"
- echo
- echo "See git-config(1) for details."
+ elif [ -z "$curr_branch" -o -z "$upstream" ]; then
+ . git-parse-remote
+ error_on_missing_default_upstream "pull" $op_type $op_prep \
+ "git pull <remote> <branch>"
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."
if ! git rev-parse -q --verify HEAD >/dev/null
then
# On an unborn branch
- if test -f "$GIT_DIR/index"
+ if test -f "$(git rev-parse --git-path index)"
then
- die "updating an unborn branch with changes added to the index"
+ die "$(gettext "updating an unborn branch with changes added to the index")"
fi
else
require_clean_work_tree "pull with rebase" "Please commit or stash them."
fi
oldremoteref= &&
+ test -n "$curr_branch" &&
. 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
+ oldremoteref=$(git merge-base --fork-point "$remoteref" $curr_branch 2>/dev/null)
}
orig_head=$(git rev-parse -q --verify HEAD)
-git fetch $verbosity $progress $dry_run $recurse_submodules --update-head-ok "$@" || exit 1
+git fetch $verbosity $progress $dry_run $recurse_submodules $all $append \
+$upload_pack $force $tags $prune $keep $depth $unshallow $update_shallow \
+$refmap --update-head-ok "$@" || exit 1
test -z "$dry_run" || exit 0
curr_head=$(git rev-parse -q --verify HEAD)
# $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 $orig_head."
+ eval_gettextln "Warning: fetch updated the current branch head.
+Warning: fast-forwarding your working tree from
+Warning: commit \$orig_head." >&2
git update-index -q --refresh
git read-tree -u -m "$orig_head" "$curr_head" ||
- die 'Cannot fast-forward your working tree.
+ die "$(eval_gettext "Cannot fast-forward your working tree.
After making sure that you saved anything precious from
-$ git diff '$orig_head'
+$ git diff \$orig_head
output, run
$ git reset --hard
-to recover.'
+to recover.")"
fi
?*' '?*)
if test -z "$orig_head"
then
- die "Cannot merge multiple branches into empty head"
+ die "$(gettext "Cannot merge multiple branches into empty head")"
fi
if test true = "$rebase"
then
- die "Cannot rebase onto multiple branches"
+ die "$(gettext "Cannot rebase onto multiple branches")"
fi
;;
esac
+# Pulling into unborn branch: a shorthand for branching off
+# FETCH_HEAD, for lazy typers.
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
+ # Two-way merge: we claim the index is based on an empty tree,
+ # and try to fast-forward to HEAD. This ensures we will not
+ # lose index/worktree changes that the user already made on
+ # the unborn branch.
+ empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+ git read-tree -m -u $empty_tree $merge_head &&
+ git update-ref -m "initial pull" HEAD $merge_head "$curr_head"
exit
fi
fi
fi
-merge_name=$(git fmt-merge-msg $log_arg <"$GIT_DIR/FETCH_HEAD") || exit
case "$rebase" in
true)
- eval="git-rebase $diffstat $strategy_args $merge_args"
+ eval="git-rebase $diffstat $strategy_args $merge_args $rebase_args $verbosity"
+ eval="$eval $gpg_sign_args"
eval="$eval --onto $merge_head ${oldremoteref:-$merge_head}"
;;
*)
- eval="git-merge $diffstat $no_commit $squash $no_ff $ff_only"
- eval="$eval $log_arg $strategy_args $merge_args"
- eval="$eval \"\$merge_name\" HEAD $merge_head $verbosity"
+ eval="git-merge $diffstat $no_commit $verify_signatures $edit $squash $no_ff $ff_only"
+ eval="$eval $log_arg $strategy_args $merge_args $verbosity $progress"
+ eval="$eval $gpg_sign_args"
+ eval="$eval FETCH_HEAD"
;;
esac
eval "exec $eval"