LF='
'
-OK_TO_SKIP_PRE_REBASE=
-RESOLVEMSG="
+ok_to_skip_pre_rebase=
+resolvemsg="
When you have resolved this problem run \"git rebase --continue\".
If you would prefer to skip this patch, instead run \"git rebase --skip\".
To restore the original branch and stop rebasing run \"git rebase --abort\".
"
-unset newbase
-strategy=recursive
+unset onto
+strategy=
strategy_opts=
do_merge=
-dotest="$GIT_DIR"/rebase-merge
-prec=4
+merge_dir="$GIT_DIR"/rebase-merge
+apply_dir="$GIT_DIR"/rebase-apply
verbose=
diffstat=
test "$(git config --bool rebase.stat)" = true && diffstat=t
rebase_root=
force_rebase=
allow_rerere_autoupdate=
-
-continue_merge () {
- test -n "$prev_head" || die "prev_head must be defined"
- test -d "$dotest" || die "$dotest directory does not exist"
-
- unmerged=$(git ls-files -u)
- if test -n "$unmerged"
- then
- echo "You still have unmerged paths in your index"
- echo "did you forget to use git add?"
- die "$RESOLVEMSG"
- fi
-
- cmt=`cat "$dotest/current"`
- if ! git diff-index --quiet --ignore-submodules HEAD --
+# Non-empty if a rebase was in progress when 'git rebase' was invoked
+in_progress=
+# One of {am, merge, interactive}
+type=
+# One of {"$GIT_DIR"/rebase-apply, "$GIT_DIR"/rebase-merge}
+state_dir=
+# One of {'', continue, skip, abort}, as parsed from command line
+action=
+preserve_merges=
+autosquash=
+test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
+
+read_basic_state () {
+ head_name=$(cat "$state_dir"/head-name) &&
+ onto=$(cat "$state_dir"/onto) &&
+ # We always write to orig-head, but interactive rebase used to write to
+ # head. Fall back to reading from head to cover for the case that the
+ # user upgraded git with an ongoing interactive rebase.
+ if test -f "$state_dir"/orig-head
then
- if ! git commit --no-verify -C "$cmt"
- then
- echo "Commit failed, please do not call \"git commit\""
- echo "directly, but instead do one of the following: "
- die "$RESOLVEMSG"
- fi
- if test -z "$GIT_QUIET"
- then
- printf "Committed: %0${prec}d " $msgnum
- fi
- echo "$cmt $(git rev-parse HEAD^0)" >> "$dotest/rewritten"
+ orig_head=$(cat "$state_dir"/orig-head)
else
- if test -z "$GIT_QUIET"
- then
- printf "Already applied: %0${prec}d " $msgnum
- fi
- fi
- test -z "$GIT_QUIET" &&
- GIT_PAGER='' git log --format=%s -1 "$cmt"
-
- prev_head=`git rev-parse HEAD^0`
- # save the resulting commit so we can read-tree on it later
- echo "$prev_head" > "$dotest/prev_head"
+ orig_head=$(cat "$state_dir"/head)
+ fi &&
+ GIT_QUIET=$(cat "$state_dir"/quiet) &&
+ test -f "$state_dir"/verbose && verbose=t
+ test -f "$state_dir"/strategy && strategy="$(cat "$state_dir"/strategy)"
+ test -f "$state_dir"/strategy_opts &&
+ strategy_opts="$(cat "$state_dir"/strategy_opts)"
+ test -f "$state_dir"/allow_rerere_autoupdate &&
+ allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)"
+}
- # onto the next patch:
- msgnum=$(($msgnum + 1))
- echo "$msgnum" >"$dotest/msgnum"
+write_basic_state () {
+ echo "$head_name" > "$state_dir"/head-name &&
+ echo "$onto" > "$state_dir"/onto &&
+ echo "$orig_head" > "$state_dir"/orig-head &&
+ echo "$GIT_QUIET" > "$state_dir"/quiet &&
+ test t = "$verbose" && : > "$state_dir"/verbose
+ test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy
+ test -n "$strategy_opts" && echo "$strategy_opts" > \
+ "$state_dir"/strategy_opts
+ test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \
+ "$state_dir"/allow_rerere_autoupdate
}
-call_merge () {
- cmt="$(cat "$dotest/cmt.$1")"
- echo "$cmt" > "$dotest/current"
- hd=$(git rev-parse --verify HEAD)
- cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
- msgnum=$(cat "$dotest/msgnum")
- end=$(cat "$dotest/end")
- eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
- eval GITHEAD_$hd='$(cat "$dotest/onto_name")'
- export GITHEAD_$cmt GITHEAD_$hd
- if test -n "$GIT_QUIET"
- then
- GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY
- fi
- eval 'git-merge-$strategy' $strategy_opts '"$cmt^" -- "$hd" "$cmt"'
- rv=$?
- case "$rv" in
- 0)
- unset GITHEAD_$cmt GITHEAD_$hd
- return
- ;;
- 1)
- git rerere $allow_rerere_autoupdate
- die "$RESOLVEMSG"
- ;;
- 2)
- echo "Strategy: $rv $strategy failed, try another" 1>&2
- die "$RESOLVEMSG"
+output () {
+ case "$verbose" in
+ '')
+ output=$("$@" 2>&1 )
+ status=$?
+ test $status != 0 && printf "%s\n" "$output"
+ return $status
;;
*)
- die "Unknown exit code ($rv) from command:" \
- "git-merge-$strategy $cmt^ -- HEAD $cmt"
+ "$@"
;;
esac
}
move_to_original_branch () {
- test -z "$head_name" &&
- head_name="$(cat "$dotest"/head-name)" &&
- onto="$(cat "$dotest"/onto)" &&
- orig_head="$(cat "$dotest"/orig-head)"
case "$head_name" in
refs/*)
message="rebase finished: $head_name onto $onto"
esac
}
-finish_rb_merge () {
- move_to_original_branch
- git notes copy --for-rewrite=rebase < "$dotest"/rewritten
- if test -x "$GIT_DIR"/hooks/post-rewrite &&
- test -s "$dotest"/rewritten; then
- "$GIT_DIR"/hooks/post-rewrite rebase < "$dotest"/rewritten
- fi
- rm -r "$dotest"
- say All done.
-}
-
-is_interactive () {
- while test $# != 0
- do
- case "$1" in
- -i|--interactive)
- interactive_rebase=explicit
- break
- ;;
- -p|--preserve-merges)
- interactive_rebase=implied
- ;;
- esac
- shift
- done
-
+run_specific_rebase () {
if [ "$interactive_rebase" = implied ]; then
GIT_EDITOR=:
export GIT_EDITOR
fi
-
- test -n "$interactive_rebase" || test -f "$dotest"/interactive
+ . git-rebase--$type
}
run_pre_rebase_hook () {
- if test -z "$OK_TO_SKIP_PRE_REBASE" &&
+ if test -z "$ok_to_skip_pre_rebase" &&
test -x "$GIT_DIR/hooks/pre-rebase"
then
"$GIT_DIR/hooks/pre-rebase" ${1+"$@"} ||
fi
}
-test -f "$GIT_DIR"/rebase-apply/applying &&
+test -f "$apply_dir"/applying &&
die 'It looks like git-am is in progress. Cannot rebase.'
-is_interactive "$@" && exec git-rebase--interactive "$@"
+if test -d "$apply_dir"
+then
+ type=am
+ state_dir="$apply_dir"
+elif test -d "$merge_dir"
+then
+ if test -f "$merge_dir"/interactive
+ then
+ type=interactive
+ interactive_rebase=explicit
+ else
+ type=merge
+ fi
+ state_dir="$merge_dir"
+fi
+test -n "$type" && in_progress=t
+total_argc=$#
while test $# != 0
do
case "$1" in
--no-verify)
- OK_TO_SKIP_PRE_REBASE=yes
+ ok_to_skip_pre_rebase=yes
;;
--verify)
- OK_TO_SKIP_PRE_REBASE=
- ;;
- --continue)
- test -d "$dotest" -o -d "$GIT_DIR"/rebase-apply ||
- die "No rebase in progress?"
-
- git update-index --ignore-submodules --refresh &&
- git diff-files --quiet --ignore-submodules || {
- echo "You must edit all merge conflicts and then"
- echo "mark them as resolved using git add"
- exit 1
- }
- if test -d "$dotest"
- then
- prev_head=$(cat "$dotest/prev_head")
- end=$(cat "$dotest/end")
- msgnum=$(cat "$dotest/msgnum")
- onto=$(cat "$dotest/onto")
- GIT_QUIET=$(cat "$dotest/quiet")
- continue_merge
- while test "$msgnum" -le "$end"
- do
- call_merge "$msgnum"
- continue_merge
- done
- finish_rb_merge
- exit
- fi
- head_name=$(cat "$GIT_DIR"/rebase-apply/head-name) &&
- onto=$(cat "$GIT_DIR"/rebase-apply/onto) &&
- orig_head=$(cat "$GIT_DIR"/rebase-apply/orig-head) &&
- GIT_QUIET=$(cat "$GIT_DIR"/rebase-apply/quiet)
- git am --resolved --3way --resolvemsg="$RESOLVEMSG" &&
- move_to_original_branch
- exit
+ ok_to_skip_pre_rebase=
;;
- --skip)
- test -d "$dotest" -o -d "$GIT_DIR"/rebase-apply ||
- die "No rebase in progress?"
-
- git reset --hard HEAD || exit $?
- if test -d "$dotest"
- then
- git rerere clear
- prev_head=$(cat "$dotest/prev_head")
- end=$(cat "$dotest/end")
- msgnum=$(cat "$dotest/msgnum")
- msgnum=$(($msgnum + 1))
- onto=$(cat "$dotest/onto")
- GIT_QUIET=$(cat "$dotest/quiet")
- while test "$msgnum" -le "$end"
- do
- call_merge "$msgnum"
- continue_merge
- done
- finish_rb_merge
- exit
- fi
- head_name=$(cat "$GIT_DIR"/rebase-apply/head-name) &&
- onto=$(cat "$GIT_DIR"/rebase-apply/onto) &&
- orig_head=$(cat "$GIT_DIR"/rebase-apply/orig-head) &&
- GIT_QUIET=$(cat "$GIT_DIR"/rebase-apply/quiet)
- git am -3 --skip --resolvemsg="$RESOLVEMSG" &&
- move_to_original_branch
- exit
- ;;
- --abort)
- test -d "$dotest" -o -d "$GIT_DIR"/rebase-apply ||
- die "No rebase in progress?"
-
- git rerere clear
-
- test -d "$dotest" || dotest="$GIT_DIR"/rebase-apply
-
- head_name="$(cat "$dotest"/head-name)" &&
- case "$head_name" in
- refs/*)
- git symbolic-ref HEAD $head_name ||
- die "Could not move back to $head_name"
- ;;
- esac
- git reset --hard $(cat "$dotest/orig-head")
- rm -r "$dotest"
- exit
+ --continue|--skip|--abort)
+ test $total_argc -eq 1 || usage
+ action=${1##--}
;;
--onto)
test 2 -le "$#" || usage
- newbase="$2"
+ onto="$2"
shift
;;
+ -i|--interactive)
+ interactive_rebase=explicit
+ ;;
+ -p|--preserve-merges)
+ preserve_merges=t
+ test -z "$interactive_rebase" && interactive_rebase=implied
+ ;;
+ --autosquash)
+ autosquash=t
+ ;;
+ --no-autosquash)
+ autosquash=
+ ;;
-M|-m|--m|--me|--mer|--merg|--merge)
do_merge=t
;;
esac
strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--$newopt")"
do_merge=t
+ test -z "$strategy" && strategy=recursive
;;
-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
--strateg=*|--strategy=*|\
done
test $# -gt 2 && usage
-if test $# -eq 0 && test -z "$rebase_root"
+if test -n "$action"
then
- test -d "$dotest" -o -d "$GIT_DIR"/rebase-apply || usage
- test -d "$dotest" -o -f "$GIT_DIR"/rebase-apply/rebasing &&
- die 'A rebase is in progress, try --continue, --skip or --abort.'
+ test -z "$in_progress" && die "No rebase in progress?"
+ # Only interactive rebase uses detailed reflog messages
+ if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase
+ then
+ GIT_REFLOG_ACTION="rebase -i ($action)"
+ export GIT_REFLOG_ACTION
+ fi
fi
-# Make sure we do not have $GIT_DIR/rebase-apply
-if test -z "$do_merge"
+case "$action" in
+continue)
+ # Sanity check
+ git rev-parse --verify HEAD >/dev/null ||
+ die "Cannot read HEAD"
+ git update-index --ignore-submodules --refresh &&
+ git diff-files --quiet --ignore-submodules || {
+ echo "You must edit all merge conflicts and then"
+ echo "mark them as resolved using git add"
+ exit 1
+ }
+ read_basic_state
+ run_specific_rebase
+ ;;
+skip)
+ output git reset --hard HEAD || exit $?
+ read_basic_state
+ run_specific_rebase
+ ;;
+abort)
+ git rerere clear
+ read_basic_state
+ case "$head_name" in
+ refs/*)
+ git symbolic-ref HEAD $head_name ||
+ die "Could not move back to $head_name"
+ ;;
+ esac
+ output git reset --hard $orig_head
+ rm -r "$state_dir"
+ exit
+ ;;
+esac
+
+# Make sure no rebase is in progress
+if test -n "$in_progress"
then
- if mkdir "$GIT_DIR"/rebase-apply 2>/dev/null
- then
- rmdir "$GIT_DIR"/rebase-apply
- else
- echo >&2 '
-It seems that I cannot create a rebase-apply directory, and
-I wonder if you are in the middle of patch application or another
-rebase. If that is not the case, please
- rm -fr '"$GIT_DIR"'/rebase-apply
+ die '
+It seems that there is already a '"${state_dir##*/}"' directory, and
+I wonder if you are in the middle of another rebase. If that is the
+case, please try
+ git rebase (--continue | --abort | --skip)
+If that is not the case, please
+ rm -fr '"$state_dir"'
and run me again. I am stopping in case you still have something
valuable there.'
- exit 1
- fi
-else
- if test -d "$dotest"
- then
- die "previous rebase directory $dotest still exists." \
- 'Try git rebase (--continue | --abort | --skip)'
- fi
fi
-require_clean_work_tree "rebase" "Please commit or stash them."
+test $# -eq 0 && test -z "$rebase_root" && usage
+
+if test -n "$interactive_rebase"
+then
+ type=interactive
+ state_dir="$merge_dir"
+elif test -n "$do_merge"
+then
+ type=merge
+ state_dir="$merge_dir"
+else
+ type=am
+ state_dir="$apply_dir"
+fi
if test -z "$rebase_root"
then
shift
upstream=`git rev-parse --verify "${upstream_name}^0"` ||
die "invalid upstream $upstream_name"
- unset root_flag
upstream_arg="$upstream_name"
else
- test -z "$newbase" && die "--root must be used with --onto"
+ test -z "$onto" && die "You must specify --onto when using --root"
unset upstream_name
unset upstream
- root_flag="--root"
- upstream_arg="$root_flag"
+ upstream_arg=--root
fi
# Make sure the branch to rebase onto is valid.
-onto_name=${newbase-"$upstream_name"}
+onto_name=${onto-"$upstream_name"}
case "$onto_name" in
*...*)
if left=${onto_name%...*} right=${onto_name#*...} &&
fi
;;
*)
- onto=$(git rev-parse --verify "${onto_name}^0") || exit
+ onto=$(git rev-parse --verify "${onto_name}^0") ||
+ die "Does not point to a valid commit: $1"
;;
esac
-# If a hook exists, give it a chance to interrupt
-run_pre_rebase_hook "$upstream_arg" "$@"
-
# If the branch to rebase is given, that is the branch we will rebase
# $branch_name -- branch being rebased, or HEAD (already detached)
# $orig_head -- commit object name of tip of the branch before rebasing
switch_to="$1"
if git show-ref --verify --quiet -- "refs/heads/$1" &&
- branch=$(git rev-parse -q --verify "refs/heads/$1")
+ orig_head=$(git rev-parse -q --verify "refs/heads/$1")
then
head_name="refs/heads/$1"
- elif branch=$(git rev-parse -q --verify "$1")
+ elif orig_head=$(git rev-parse -q --verify "$1")
then
head_name="detached HEAD"
else
+ echo >&2 "fatal: no such branch: $1"
usage
fi
;;
head_name="detached HEAD"
branch_name=HEAD ;# detached
fi
- branch=$(git rev-parse --verify "${branch_name}^0") || exit
+ orig_head=$(git rev-parse --verify "${branch_name}^0") || exit
;;
esac
-orig_head=$branch
-# Now we are rebasing commits $upstream..$branch (or with --root,
-# everything leading up to $branch) on top of $onto
+require_clean_work_tree "rebase" "Please commit or stash them."
+
+# Now we are rebasing commits $upstream..$orig_head (or with --root,
+# everything leading up to $orig_head) on top of $onto
# Check if we are already based on $onto with linear history,
-# but this should be done only when upstream and onto are the same.
-mb=$(git merge-base "$onto" "$branch")
-if test "$upstream" = "$onto" && test "$mb" = "$onto" &&
+# but this should be done only when upstream and onto are the same
+# and if this is not an interactive rebase.
+mb=$(git merge-base "$onto" "$orig_head")
+if test "$type" != interactive && test "$upstream" = "$onto" &&
+ test "$mb" = "$onto" &&
# linear history?
- ! (git rev-list --parents "$onto".."$branch" | sane_grep " .* ") > /dev/null
+ ! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null
then
if test -z "$force_rebase"
then
# Lazily switch to the target branch if needed...
- test -z "$switch_to" || git checkout "$switch_to"
+ test -z "$switch_to" || git checkout "$switch_to" --
say "Current branch $branch_name is up to date."
exit 0
else
fi
fi
-# Detach HEAD and reset the tree
-say "First, rewinding head to replay your work on top of it..."
-git checkout -q "$onto^0" || die "could not detach HEAD"
-git update-ref ORIG_HEAD $branch
+# If a hook exists, give it a chance to interrupt
+run_pre_rebase_hook "$upstream_arg" "$@"
if test -n "$diffstat"
then
GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
fi
+test "$type" = interactive && run_specific_rebase
+
+# Detach HEAD and reset the tree
+say "First, rewinding head to replay your work on top of it..."
+git checkout -q "$onto^0" || die "could not detach HEAD"
+git update-ref ORIG_HEAD $orig_head
+
# If the $onto is a proper descendant of the tip of the branch, then
# we just fast-forwarded.
-if test "$mb" = "$branch"
+if test "$mb" = "$orig_head"
then
say "Fast-forwarded $branch_name to $onto_name."
move_to_original_branch
revisions="$upstream..$orig_head"
fi
-if test -z "$do_merge"
-then
- git format-patch -k --stdout --full-index --ignore-if-in-upstream \
- --src-prefix=a/ --dst-prefix=b/ \
- --no-renames $root_flag "$revisions" |
- git am $git_am_opt --rebasing --resolvemsg="$RESOLVEMSG" &&
- move_to_original_branch
- ret=$?
- test 0 != $ret -a -d "$GIT_DIR"/rebase-apply &&
- echo $head_name > "$GIT_DIR"/rebase-apply/head-name &&
- echo $onto > "$GIT_DIR"/rebase-apply/onto &&
- echo $orig_head > "$GIT_DIR"/rebase-apply/orig-head &&
- echo "$GIT_QUIET" > "$GIT_DIR"/rebase-apply/quiet
- exit $ret
-fi
-
-# start doing a rebase with git-merge
-# this is rename-aware if the recursive (default) strategy is used
-
-mkdir -p "$dotest"
-echo "$onto" > "$dotest/onto"
-echo "$onto_name" > "$dotest/onto_name"
-prev_head=$orig_head
-echo "$prev_head" > "$dotest/prev_head"
-echo "$orig_head" > "$dotest/orig-head"
-echo "$head_name" > "$dotest/head-name"
-echo "$GIT_QUIET" > "$dotest/quiet"
-
-msgnum=0
-for cmt in `git rev-list --reverse --no-merges "$revisions"`
-do
- msgnum=$(($msgnum + 1))
- echo "$cmt" > "$dotest/cmt.$msgnum"
-done
-
-echo 1 >"$dotest/msgnum"
-echo $msgnum >"$dotest/end"
-
-end=$msgnum
-msgnum=1
-
-while test "$msgnum" -le "$end"
-do
- call_merge "$msgnum"
- continue_merge
-done
-
-finish_rb_merge
+run_specific_rebase