Interactive rebases are implemented in terms of cherry-pick rather than
the merge-recursive builtin, but cherry-pick also calls into the recursive
merge machinery by default and can accept special merge strategies and/or
special strategy options. As such, there really is not any need for
having both git-rebase--merge and git-rebase--interactive anymore.
Delete git-rebase--merge.sh and have the --merge option be implemented
by the now built-in interactive machinery.
Note that this change fixes a few known test failures (see t3421).
testcase modification notes:
t3406: --interactive and --merge had slightly different progress output
while running; adjust a test to match
t3420: these test precise output while running, but rebase--am,
rebase--merge, and rebase--interactive all were built on very
different commands (am, merge-recursive, cherry-pick), so the
tests expected different output for each type. Now we expect
--merge and --interactive to have the same output.
t3421: --interactive fixes some bugs in --merge! Wahoo!
t3425: topology linearization was inconsistent across flavors of rebase,
as already noted in a TODO comment in the testcase. This was not
considered a bug before, so getting a different linearization due
to switching out backends should not be considered a bug now.
t5407: different rebase types varied slightly in how many times checkout
or commit or equivalents were called based on a quick comparison
of this tests and previous ones which covered different rebase
flavors. I think this is just attributable to this difference.
t9903: --merge uses the interactive backend so the prompt expected is
now REBASE-i.
Signed-off-by: Elijah Newren <new...@gmail.com>
---
.gitignore | 1 -
Documentation/git-rebase.txt | 17 +---
Makefile | 1 -
builtin/rebase.c | 10 +-
git-legacy-rebase.sh | 55 +++++-----
git-rebase--merge.sh | 164 ------------------------------
t/t3406-rebase-message.sh | 7 +-
t/t3420-rebase-autostash.sh | 78 ++------------
t/t3421-rebase-topology-linear.sh | 10 +-
t/t3425-rebase-topology-merges.sh | 6 +-
t/t5407-post-rewrite-hook.sh | 1 +
t/t9903-bash-prompt.sh | 2 +-
12 files changed, 50 insertions(+), 302 deletions(-)
delete mode 100644 git-rebase--merge.sh
diff --git a/.gitignore b/.gitignore
index 0d77ea5894..910b1d2d2f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -124,7 +124,6 @@
/git-rebase--am
/git-rebase--common
/git-rebase--interactive
-/git-rebase--merge
/git-rebase--preserve-merges
/git-receive-pack
/git-reflog
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 3407d835bd..35084f5681 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -504,15 +504,7 @@ See also INCOMPATIBLE OPTIONS below.
INCOMPATIBLE OPTIONS
--------------------
-git-rebase has many flags that are incompatible with each other,
-predominantly due to the fact that it has three different underlying
-implementations:
-
- * one based on linkgit:git-am[1] (the default)
- * one based on git-merge-recursive (merge backend)
- * one based on linkgit:git-cherry-pick[1] (interactive backend)
-
-Flags only understood by the am backend:
+The following options:
* --committer-date-is-author-date
* --ignore-date
@@ -520,15 +512,12 @@ Flags only understood by the am backend:
* --ignore-whitespace
* -C
-Flags understood by both merge and interactive backends:
+are incompatible with the following options:
* --merge
* --strategy
* --strategy-option
* --allow-empty-message
-
-Flags only understood by the interactive backend:
-
* --[no-]autosquash
* --rebase-merges
* --preserve-merges
@@ -539,7 +528,7 @@ Flags only understood by the interactive backend:
* --edit-todo
* --root when used in combination with --onto
-Other incompatible flag pairs:
+In addition, the following pairs of options are incompatible:
* --preserve-merges and --interactive
* --preserve-merges and --signoff
diff --git a/Makefile b/Makefile
index bbfbb4292d..18e79fdea8 100644
--- a/Makefile
+++ b/Makefile
@@ -628,7 +628,6 @@ SCRIPT_LIB += git-parse-remote
SCRIPT_LIB += git-rebase--am
SCRIPT_LIB += git-rebase--common
SCRIPT_LIB += git-rebase--preserve-merges
-SCRIPT_LIB += git-rebase--merge
SCRIPT_LIB += git-sh-setup
SCRIPT_LIB += git-sh-i18n
diff --git a/builtin/rebase.c b/builtin/rebase.c
index be004406a6..d55bbb9eb9 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -118,7 +118,7 @@ static void imply_interactive(struct rebase_options *opts,
const char *option)
case REBASE_PRESERVE_MERGES:
break;
case REBASE_MERGE:
- /* we silently *upgrade* --merge to --interactive if needed */
+ /* we now implement --merge via --interactive */
default:
opts->type = REBASE_INTERACTIVE; /* implied */
break;
@@ -475,10 +475,6 @@ static int run_specific_rebase(struct rebase_options *opts)
backend = "git-rebase--am";
backend_func = "git_rebase__am";
break;
- case REBASE_MERGE:
- backend = "git-rebase--merge";
- backend_func = "git_rebase__merge";
- break;
case REBASE_PRESERVE_MERGES:
backend = "git-rebase--preserve-merges";
backend_func = "git_rebase__preserve_merges";
@@ -1156,6 +1152,10 @@ int cmd_rebase(int argc, const char **argv, const char
*prefix)
}
}
+ if (options.type == REBASE_MERGE) {
+ imply_interactive(&options, "--merge");
+ }
+
if (options.root && !options.onto_name)
imply_interactive(&options, "--root without --onto");
diff --git a/git-legacy-rebase.sh b/git-legacy-rebase.sh
index da27bfca5a..4abcceed06 100755
--- a/git-legacy-rebase.sh
+++ b/git-legacy-rebase.sh
@@ -218,6 +218,7 @@ then
state_dir="$apply_dir"
elif test -d "$merge_dir"
then
+ type=interactive
if test -d "$merge_dir"/rewritten
then
type=preserve-merges
@@ -225,10 +226,7 @@ then
preserve_merges=t
elif test -f "$merge_dir"/interactive
then
- type=interactive
interactive_rebase=explicit
- else
- type=merge
fi
state_dir="$merge_dir"
fi
@@ -469,6 +467,7 @@ then
test -z "$interactive_rebase" && interactive_rebase=implied
fi
+actually_interactive=
if test -n "$interactive_rebase"
then
if test -z "$preserve_merges"
@@ -477,11 +476,12 @@ then
else
type=preserve-merges
fi
-
+ actually_interactive=t
state_dir="$merge_dir"
elif test -n "$do_merge"
then
- type=merge
+ interactive_rebase=implied
+ type=interactive
state_dir="$merge_dir"
else
type=am
@@ -493,21 +493,13 @@ then
git_format_patch_opt="$git_format_patch_opt --progress"
fi
-if test -n "$git_am_opt"; then
- incompatible_opts=$(echo " $git_am_opt " | \
- sed -e 's/ -q / /g' -e 's/^ \(.*\) $/\1/')
- if test -n "$interactive_rebase"
+incompatible_opts=$(echo " $git_am_opt " | \
+ sed -e 's/ -q / /g' -e 's/^ \(.*\) $/\1/')
+if test -n "$incompatible_opts"
+then
+ if test -n "$actually_interactive" || test "$do_merge"
then
- if test -n "$incompatible_opts"
- then
- die "$(gettext "error: cannot combine interactive
options (--interactive, --exec, --rebase-merges, --preserve-merges,
--keep-empty, --root + --onto) with am options ($incompatible_opts)")"
- fi
- fi
- if test -n "$do_merge"; then
- if test -n "$incompatible_opts"
- then
- die "$(gettext "error: cannot combine merge options
(--merge, --strategy, --strategy-option) with am options ($incompatible_opts)")"
- fi
+ die "$(gettext "error: cannot combine am options
($incompatible_opts) with either interactive or merge options")"
fi
fi
@@ -672,7 +664,7 @@ require_clean_work_tree "rebase" "$(gettext "Please commit
or stash them.")"
# 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" "$orig_head")
-if test -z "$interactive_rebase" && test "$upstream" = "$onto" &&
+if test -z "$actually_interactive" && test "$upstream" = "$onto" &&
test "$mb" = "$onto" && test -z "$restrict_revision" &&
# linear history?
! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") >
/dev/null
@@ -716,6 +708,19 @@ then
GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
fi
+if test -z "$actually_interactive" && test "$mb" = "$orig_head"
+then
+ # If the $onto is a proper descendant of the tip of the branch, then
+ # we just fast-forwarded.
+ say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")"
+ GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \
+ git checkout -q "$onto^0" || die "could not detach HEAD"
+ git update-ref ORIG_HEAD $orig_head
+ move_to_original_branch
+ finish_rebase
+ exit 0
+fi
+
test -n "$interactive_rebase" && run_specific_rebase
# Detach HEAD and reset the tree
@@ -725,16 +730,6 @@ GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout
$onto_name" \
git checkout -q "$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" = "$orig_head"
-then
- say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")"
- move_to_original_branch
- finish_rebase
- exit 0
-fi
-
if test -n "$rebase_root"
then
revisions="$onto..$orig_head"
diff --git a/git-rebase--merge.sh b/git-rebase--merge.sh
deleted file mode 100644
index aa2f2f0872..0000000000
--- a/git-rebase--merge.sh
+++ /dev/null
@@ -1,164 +0,0 @@
-# This shell script fragment is sourced by git-rebase to implement
-# its merge-based non-interactive mode that copes well with renamed
-# files.
-#
-# Copyright (c) 2010 Junio C Hamano.
-#
-
-prec=4
-
-read_state () {
- onto_name=$(cat "$state_dir"/onto_name) &&
- end=$(cat "$state_dir"/end) &&
- msgnum=$(cat "$state_dir"/msgnum)
-}
-
-continue_merge () {
- test -d "$state_dir" || die "$state_dir directory does not exist"
-
- unmerged=$(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=$(cat "$state_dir/current")
- if ! git diff-index --quiet --ignore-submodules HEAD --
- then
- if ! git commit ${gpg_sign_opt:+"$gpg_sign_opt"} $signoff
$allow_empty_message \
- --no-verify -C "$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 $(git rev-parse HEAD^0)" >> "$state_dir/rewritten"
- 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 "$cmt"
-
- # onto the next patch:
- msgnum=$(($msgnum + 1))
- echo "$msgnum" >"$state_dir/msgnum"
-}
-
-call_merge () {
- msgnum="$1"
- echo "$msgnum" >"$state_dir/msgnum"
- cmt="$(cat "$state_dir/cmt.$msgnum")"
- echo "$cmt" > "$state_dir/current"
- git update-ref REBASE_HEAD "$cmt"
- hd=$(git rev-parse --verify HEAD)
- cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
- eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
- eval GITHEAD_$hd='$onto_name'
- export GITHEAD_$cmt GITHEAD_$hd
- if test -n "$GIT_QUIET"
- then
- GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY
- fi
- test -z "$strategy" && strategy=recursive
- # If cmt doesn't have a parent, don't include it as a base
- base=$(git rev-parse --verify --quiet $cmt^)
- eval 'git merge-$strategy' $strategy_opts $base ' -- "$hd" "$cmt"'
- rv=$?
- case "$rv" in
- 0)
- unset GITHEAD_$cmt GITHEAD_$hd
- return
- ;;
- 1)
- git rerere $allow_rerere_autoupdate
- die "$resolvemsg"
- ;;
- 2)
- echo "Strategy: $strategy failed, try another" 1>&2
- die "$resolvemsg"
- ;;
- *)
- die "Unknown exit code ($rv) from command:" \
- "git merge-$strategy $cmt^ -- HEAD $cmt"
- ;;
- esac
-}
-
-finish_rb_merge () {
- move_to_original_branch
- if test -s "$state_dir"/rewritten
- then
- git notes copy --for-rewrite=rebase <"$state_dir"/rewritten
- hook="$(git rev-parse --git-path hooks/post-rewrite)"
- test -x "$hook" && "$hook" rebase <"$state_dir"/rewritten
- fi
- say All done.
-}
-
-git_rebase__merge () {
-
-case "$action" in
-continue)
- read_state
- continue_merge
- while test "$msgnum" -le "$end"
- do
- call_merge "$msgnum"
- continue_merge
- done
- finish_rb_merge
- return
- ;;
-skip)
- read_state
- git rerere clear
- msgnum=$(($msgnum + 1))
- while test "$msgnum" -le "$end"
- do
- call_merge "$msgnum"
- continue_merge
- done
- finish_rb_merge
- return
- ;;
-show-current-patch)
- exec git show REBASE_HEAD --
- ;;
-esac
-
-mkdir -p "$state_dir"
-echo "$onto_name" > "$state_dir/onto_name"
-write_basic_state
-rm -f "$(git rev-parse --git-path REBASE_HEAD)"
-
-msgnum=0
-for cmt in $(git rev-list --reverse --no-merges "$revisions")
-do
- msgnum=$(($msgnum + 1))
- echo "$cmt" > "$state_dir/cmt.$msgnum"
-done
-
-echo 1 >"$state_dir/msgnum"
-echo $msgnum >"$state_dir/end"
-
-end=$msgnum
-msgnum=1
-
-while test "$msgnum" -le "$end"
-do
- call_merge "$msgnum"
- continue_merge
-done
-
-finish_rb_merge
-
-}
diff --git a/t/t3406-rebase-message.sh b/t/t3406-rebase-message.sh
index 0392e36d23..04d6c71899 100755
--- a/t/t3406-rebase-message.sh
+++ b/t/t3406-rebase-message.sh
@@ -17,14 +17,9 @@ test_expect_success 'setup' '
git tag start
'
-cat >expect <<\EOF
-Already applied: 0001 A
-Already applied: 0002 B
-Committed: 0003 Z
-EOF
-
test_expect_success 'rebase -m' '
git rebase -m master >report &&
+ >expect &&
sed -n -e "/^Already applied: /p" \
-e "/^Committed: /p" report >actual &&
test_cmp expect actual
diff --git a/t/t3420-rebase-autostash.sh b/t/t3420-rebase-autostash.sh
index f355c6825a..49077200c5 100755
--- a/t/t3420-rebase-autostash.sh
+++ b/t/t3420-rebase-autostash.sh
@@ -53,41 +53,6 @@ create_expected_success_interactive () {
EOF
}
-create_expected_success_merge () {
- cat >expected <<-EOF
- $(grep "^Created autostash: [0-9a-f][0-9a-f]*\$" actual)
- HEAD is now at $(git rev-parse --short feature-branch) third commit
- First, rewinding head to replay your work on top of it...
- Merging unrelated-onto-branch with HEAD~1
- Merging:
- $(git rev-parse --short unrelated-onto-branch) unrelated commit
- $(git rev-parse --short feature-branch^) second commit
- found 1 common ancestor:
- $(git rev-parse --short feature-branch~2) initial commit
- [detached HEAD $(git rev-parse --short rebased-feature-branch~1)]
second commit
- Author: A U Thor <aut...@example.com>
- Date: Thu Apr 7 15:14:13 2005 -0700
- 2 files changed, 2 insertions(+)
- create mode 100644 file1
- create mode 100644 file2
- Committed: 0001 second commit
- Merging unrelated-onto-branch with HEAD~0
- Merging:
- $(git rev-parse --short rebased-feature-branch~1) second commit
- $(git rev-parse --short feature-branch) third commit
- found 1 common ancestor:
- $(git rev-parse --short feature-branch~1) second commit
- [detached HEAD $(git rev-parse --short rebased-feature-branch)] third
commit
- Author: A U Thor <aut...@example.com>
- Date: Thu Apr 7 15:15:13 2005 -0700
- 1 file changed, 1 insertion(+)
- create mode 100644 file3
- Committed: 0002 third commit
- All done.
- Applied autostash.
- EOF
-}
-
create_expected_failure_am () {
cat >expected <<-EOF
$(grep "^Created autostash: [0-9a-f][0-9a-f]*\$" actual)
@@ -112,43 +77,6 @@ create_expected_failure_interactive () {
EOF
}
-create_expected_failure_merge () {
- cat >expected <<-EOF
- $(grep "^Created autostash: [0-9a-f][0-9a-f]*\$" actual)
- HEAD is now at $(git rev-parse --short feature-branch) third commit
- First, rewinding head to replay your work on top of it...
- Merging unrelated-onto-branch with HEAD~1
- Merging:
- $(git rev-parse --short unrelated-onto-branch) unrelated commit
- $(git rev-parse --short feature-branch^) second commit
- found 1 common ancestor:
- $(git rev-parse --short feature-branch~2) initial commit
- [detached HEAD $(git rev-parse --short rebased-feature-branch~1)]
second commit
- Author: A U Thor <aut...@example.com>
- Date: Thu Apr 7 15:14:13 2005 -0700
- 2 files changed, 2 insertions(+)
- create mode 100644 file1
- create mode 100644 file2
- Committed: 0001 second commit
- Merging unrelated-onto-branch with HEAD~0
- Merging:
- $(git rev-parse --short rebased-feature-branch~1) second commit
- $(git rev-parse --short feature-branch) third commit
- found 1 common ancestor:
- $(git rev-parse --short feature-branch~1) second commit
- [detached HEAD $(git rev-parse --short rebased-feature-branch)] third
commit
- Author: A U Thor <aut...@example.com>
- Date: Thu Apr 7 15:15:13 2005 -0700
- 1 file changed, 1 insertion(+)
- create mode 100644 file3
- Committed: 0002 third commit
- All done.
- Applying autostash resulted in conflicts.
- Your changes are safe in the stash.
- You can run "git stash pop" or "git stash drop" at any time.
- EOF
-}
-
testrebase () {
type=$1
dotest=$2
@@ -177,6 +105,9 @@ testrebase () {
test_expect_success "rebase$type --autostash: check output" '
test_when_finished git branch -D rebased-feature-branch &&
suffix=${type#\ --} && suffix=${suffix:-am} &&
+ if test ${suffix} = "merge"; then
+ suffix=interactive
+ fi &&
create_expected_success_$suffix &&
test_i18ncmp expected actual
'
@@ -274,6 +205,9 @@ testrebase () {
test_expect_success "rebase$type: check output with conflicting stash" '
test_when_finished git branch -D rebased-feature-branch &&
suffix=${type#\ --} && suffix=${suffix:-am} &&
+ if test ${suffix} = "merge"; then
+ suffix=interactive
+ fi &&
create_expected_failure_$suffix &&
test_i18ncmp expected actual
'
diff --git a/t/t3421-rebase-topology-linear.sh
b/t/t3421-rebase-topology-linear.sh
index 99b2aac921..911ef49f70 100755
--- a/t/t3421-rebase-topology-linear.sh
+++ b/t/t3421-rebase-topology-linear.sh
@@ -111,7 +111,7 @@ test_run_rebase () {
"
}
test_run_rebase success ''
-test_run_rebase failure -m
+test_run_rebase success -m
test_run_rebase success -i
test_run_rebase success -p
@@ -126,7 +126,7 @@ test_run_rebase () {
"
}
test_run_rebase success ''
-test_run_rebase failure -m
+test_run_rebase success -m
test_run_rebase success -i
test_run_rebase success -p
@@ -141,7 +141,7 @@ test_run_rebase () {
"
}
test_run_rebase success ''
-test_run_rebase failure -m
+test_run_rebase success -m
test_run_rebase success -i
test_run_rebase success -p
@@ -284,7 +284,7 @@ test_run_rebase () {
"
}
test_run_rebase success ''
-test_run_rebase failure -m
+test_run_rebase success -m
test_run_rebase success -i
test_run_rebase success -p
@@ -315,7 +315,7 @@ test_run_rebase () {
"
}
test_run_rebase success ''
-test_run_rebase failure -m
+test_run_rebase success -m
test_run_rebase success -i
test_run_rebase failure -p
diff --git a/t/t3425-rebase-topology-merges.sh
b/t/t3425-rebase-topology-merges.sh
index 846f85c27e..cd505c0711 100755
--- a/t/t3425-rebase-topology-merges.sh
+++ b/t/t3425-rebase-topology-merges.sh
@@ -72,7 +72,7 @@ test_run_rebase () {
}
#TODO: make order consistent across all flavors of rebase
test_run_rebase success 'e n o' ''
-test_run_rebase success 'e n o' -m
+test_run_rebase success 'n o e' -m
test_run_rebase success 'n o e' -i
test_run_rebase () {
@@ -89,7 +89,7 @@ test_run_rebase () {
}
#TODO: make order consistent across all flavors of rebase
test_run_rebase success 'd e n o' ''
-test_run_rebase success 'd e n o' -m
+test_run_rebase success 'd n o e' -m
test_run_rebase success 'd n o e' -i
test_run_rebase () {
@@ -106,7 +106,7 @@ test_run_rebase () {
}
#TODO: make order consistent across all flavors of rebase
test_run_rebase success 'd e n o' ''
-test_run_rebase success 'd e n o' -m
+test_run_rebase success 'd n o e' -m
test_run_rebase success 'd n o e' -i
test_expect_success "rebase -p is no-op in non-linear history" "
diff --git a/t/t5407-post-rewrite-hook.sh b/t/t5407-post-rewrite-hook.sh
index 9b2a274c71..145c61251d 100755
--- a/t/t5407-post-rewrite-hook.sh
+++ b/t/t5407-post-rewrite-hook.sh
@@ -120,6 +120,7 @@ test_expect_success 'git rebase -m --skip' '
git rebase --continue &&
echo rebase >expected.args &&
cat >expected.data <<-EOF &&
+ $(git rev-parse C) $(git rev-parse HEAD^)
$(git rev-parse D) $(git rev-parse HEAD)
EOF
verify_hook_input
diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index 81a5179e28..5cadedb2a9 100755
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -180,7 +180,7 @@ test_expect_success 'prompt - interactive rebase' '
'
test_expect_success 'prompt - rebase merge' '
- printf " (b2|REBASE-m 1/3)" >expected &&
+ printf " (b2|REBASE-i 1/3)" >expected &&
git checkout b2 &&
test_when_finished "git checkout master" &&
test_must_fail git rebase --merge b1 b2 &&
--
2.19.1.858.g526e8fe740.dirty
