[PATCH 0/5] Clean up after the removal of the scripted rebase

[PATCH 0/5] Clean up after the removal of the scripted rebase

[Johannes Schindelin via GitGitGadget]

Technically, there is still one part that is scripted: git rebase
--preserve-merges. But that is already deprecated, and the remaining parts
really are no longer scripted.

Meaning that we do not need git-rebase--am.sh.

While at it, clean up a few other places that reference the scripted rebase,
and also move the functions from git-rebase--common.sh directly into the -p 
backend (because it is the sole remaining user).

Johannes Schindelin (5):
  Drop unused git-rebase--am.sh
  t3400: stop referring to the scripted rebase
  .gitignore: there is no longer a built-in `git-rebase--interactive`
  sequencer: the `am` and `rebase--interactive` scripts are gone
  rebase: fold git-rebase--common into the -p backend

 .gitignore                     |  3 --
 Makefile                       |  2 -
 builtin/rebase.c               |  7 +--
 git-rebase--am.sh              | 85 ----------------------------------
 git-rebase--common.sh          | 69 ---------------------------
 git-rebase--preserve-merges.sh | 55 ++++++++++++++++++++++
 sequencer.c                    |  2 +-
 t/t3400-rebase.sh              |  2 +-
 8 files changed, 58 insertions(+), 167 deletions(-)
 delete mode 100644 git-rebase--am.sh
 delete mode 100644 git-rebase--common.sh


base-commit: ab15ad1a3b4b04a29415aef8c9afa2f64fc194a2
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-194%2Fdscho%2Fdrop-rebase--am.sh-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-194/dscho/drop-rebase--am.sh-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/194
-- 
gitgitgadget

[PATCH 2/5] t3400: stop referring to the scripted rebase

[Johannes Schindelin via GitGitGadget]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

One test case's title mentioned the then-current implementation detail
that the `--am` backend was implemented in `git-rebase--am.sh`.

This is no longer the case, so let's update the title to reflect the
current reality.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 t/t3400-rebase.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh
index 42f147858d..80b23fd326 100755
--- a/t/t3400-rebase.sh
+++ b/t/t3400-rebase.sh
@@ -285,7 +285,7 @@ EOF
 	test_cmp From_.msg out
 '
 
-test_expect_success 'rebase--am.sh and --show-current-patch' '
+test_expect_success 'rebase --am and --show-current-patch' '
 	test_create_repo conflict-apply &&
 	(
 		cd conflict-apply &&
-- 
gitgitgadget

[PATCH 1/5] Drop unused git-rebase--am.sh

[Johannes Schindelin via GitGitGadget]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

Since 21853626ea (built-in rebase: call `git am` directly, 2019-01-18),
the built-in rebase already uses the built-in `git am` directly.

Now that d03ebd411c (rebase: remove the rebase.useBuiltin setting,
2019-03-18) even removed the scripted rebase, there is no longer any
user of `git-rebase--am.sh`, so let's just remove it.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 .gitignore        |  1 -
 Makefile          |  1 -
 builtin/rebase.c  |  4 ---
 git-rebase--am.sh | 85 -----------------------------------------------
 4 files changed, 91 deletions(-)
 delete mode 100644 git-rebase--am.sh

diff --git a/.gitignore b/.gitignore
index 2374f77a1a..875f3fc6e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -122,7 +122,6 @@
 /git-range-diff
 /git-read-tree
 /git-rebase
-/git-rebase--am
 /git-rebase--common
 /git-rebase--interactive
 /git-rebase--preserve-merges
diff --git a/Makefile b/Makefile
index f965509b3c..9370d85ff3 100644
--- a/Makefile
+++ b/Makefile
@@ -624,7 +624,6 @@ SCRIPT_SH += git-web--browse.sh
 
 SCRIPT_LIB += git-mergetool--lib
 SCRIPT_LIB += git-parse-remote
-SCRIPT_LIB += git-rebase--am
 SCRIPT_LIB += git-rebase--common
 SCRIPT_LIB += git-rebase--preserve-merges
 SCRIPT_LIB += git-sh-setup
diff --git a/builtin/rebase.c b/builtin/rebase.c
index ba3a574e40..d5f6f403e2 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -1153,10 +1153,6 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
 	}
 
 	switch (opts->type) {
-	case REBASE_AM:
-		backend = "git-rebase--am";
-		backend_func = "git_rebase__am";
-		break;
 	case REBASE_PRESERVE_MERGES:
 		backend = "git-rebase--preserve-merges";
 		backend_func = "git_rebase__preserve_merges";
diff --git a/git-rebase--am.sh b/git-rebase--am.sh
deleted file mode 100644
index 6416716ee6..0000000000
--- a/git-rebase--am.sh
+++ /dev/null
@@ -1,85 +0,0 @@
-# This shell script fragment is sourced by git-rebase to implement
-# its default, fast, patch-based, non-interactive mode.
-#
-# Copyright (c) 2010 Junio C Hamano.
-#
-
-git_rebase__am () {
-
-case "$action" in
-continue)
-	git am --resolved --resolvemsg="$resolvemsg" \
-		${gpg_sign_opt:+"$gpg_sign_opt"} &&
-	move_to_original_branch
-	return
-	;;
-skip)
-	git am --skip --resolvemsg="$resolvemsg" &&
-	move_to_original_branch
-	return
-	;;
-show-current-patch)
-	exec git am --show-current-patch
-	;;
-esac
-
-if test -z "$rebase_root"
-	# this is now equivalent to ! -z "$upstream"
-then
-	revisions=$upstream...$orig_head
-else
-	revisions=$onto...$orig_head
-fi
-
-ret=0
-rm -f "$GIT_DIR/rebased-patches"
-
-git format-patch -k --stdout --full-index --cherry-pick --right-only \
-	--src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter \
-	--pretty=mboxrd --topo-order \
-	$git_format_patch_opt \
-	"$revisions" ${restrict_revision+^$restrict_revision} \
-	>"$GIT_DIR/rebased-patches"
-ret=$?
-
-if test 0 != $ret
-then
-	rm -f "$GIT_DIR/rebased-patches"
-	case "$head_name" in
-	refs/heads/*)
-		git checkout -q "$head_name"
-		;;
-	*)
-		git checkout -q "$orig_head"
-		;;
-	esac
-
-	cat >&2 <<-EOF
-
-	git encountered an error while preparing the patches to replay
-	these revisions:
-
-	    $revisions
-
-	As a result, git cannot rebase them.
-	EOF
-	return $ret
-fi
-
-git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" \
-	--patch-format=mboxrd \
-	$allow_rerere_autoupdate \
-	${gpg_sign_opt:+"$gpg_sign_opt"} <"$GIT_DIR/rebased-patches"
-ret=$?
-
-rm -f "$GIT_DIR/rebased-patches"
-
-if test 0 != $ret
-then
-	test -d "$state_dir" && write_basic_state
-	return $ret
-fi
-
-move_to_original_branch
-
-}
-- 
gitgitgadget

[PATCH 3/5] .gitignore: there is no longer a built-in `git-rebase--interactive`

[Johannes Schindelin via GitGitGadget]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

This went away in 0609b741a4 (rebase -i: combine rebase--interactive.c
with rebase.c, 2019-04-17).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 .gitignore | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 875f3fc6e8..bcee4fda81 100644
--- a/.gitignore
+++ b/.gitignore
@@ -123,7 +123,6 @@
 /git-read-tree
 /git-rebase
 /git-rebase--common
-/git-rebase--interactive
 /git-rebase--preserve-merges
 /git-receive-pack
 /git-reflog
-- 
gitgitgadget

[PATCH 4/5] sequencer: the `am` and `rebase--interactive` scripts are gone

[Johannes Schindelin via GitGitGadget]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

Update a code comment that referred to those files as if they were still
there.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 sequencer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sequencer.c b/sequencer.c
index f88a97fb10..334de14542 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -767,7 +767,7 @@ static int parse_key_value_squoted(char *buf, struct string_list *list)
  *	GIT_AUTHOR_DATE='$author_date'
  *
  * where $author_name, $author_email and $author_date are quoted. We are strict
- * with our parsing, as the file was meant to be eval'd in the old
+ * with our parsing, as the file was meant to be eval'd in the now-removed
  * git-am.sh/git-rebase--interactive.sh scripts, and thus if the file differs
  * from what this function expects, it is better to bail out than to do
  * something that the user does not expect.
-- 
gitgitgadget

[PATCH 5/5] rebase: fold git-rebase--common into the -p backend

[Johannes Schindelin via GitGitGadget]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

The only remaining scripted part of `git rebase` is the
`--preserve-merges` backend. Meaning: there is little reason to keep the
"library of common rebase functions" as a separate file.

While moving the functions to `git-rebase--preserve-merges.sh`, we also
drop the `move_to_original_branch` function that is no longer used.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 .gitignore                     |  1 -
 Makefile                       |  1 -
 builtin/rebase.c               |  3 +-
 git-rebase--common.sh          | 69 ----------------------------------
 git-rebase--preserve-merges.sh | 55 +++++++++++++++++++++++++++
 5 files changed, 56 insertions(+), 73 deletions(-)
 delete mode 100644 git-rebase--common.sh

diff --git a/.gitignore b/.gitignore
index bcee4fda81..4470d7cfc0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -122,7 +122,6 @@
 /git-range-diff
 /git-read-tree
 /git-rebase
-/git-rebase--common
 /git-rebase--preserve-merges
 /git-receive-pack
 /git-reflog
diff --git a/Makefile b/Makefile
index 9370d85ff3..9fc617e38f 100644
--- a/Makefile
+++ b/Makefile
@@ -624,7 +624,6 @@ SCRIPT_SH += git-web--browse.sh
 
 SCRIPT_LIB += git-mergetool--lib
 SCRIPT_LIB += git-parse-remote
-SCRIPT_LIB += git-rebase--common
 SCRIPT_LIB += git-rebase--preserve-merges
 SCRIPT_LIB += git-sh-setup
 SCRIPT_LIB += git-sh-i18n
diff --git a/builtin/rebase.c b/builtin/rebase.c
index d5f6f403e2..9c52144fc4 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -1163,8 +1163,7 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
 	}
 
 	strbuf_addf(&script_snippet,
-		    ". git-sh-setup && . git-rebase--common &&"
-		    " . %s && %s", backend, backend_func);
+		    ". git-sh-setup && . %s && %s", backend, backend_func);
 	argv[0] = script_snippet.buf;
 
 	status = run_command_v_opt(argv, RUN_USING_SHELL);
diff --git a/git-rebase--common.sh b/git-rebase--common.sh
deleted file mode 100644
index f00e13e5d0..0000000000
--- a/git-rebase--common.sh
+++ /dev/null
@@ -1,69 +0,0 @@
-
-resolvemsg="
-$(gettext 'Resolve all conflicts manually, mark them as resolved with
-"git add/rm <conflicted_files>", then run "git rebase --continue".
-You can instead skip this commit: run "git rebase --skip".
-To abort and get back to the state before "git rebase", run "git rebase --abort".')
-"
-
-write_basic_state () {
-	echo "$head_name" > "$state_dir"/head-name &&
-	echo "$onto" > "$state_dir"/onto &&
-	echo "$orig_head" > "$state_dir"/orig-head &&
-	test t = "$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
-	test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt
-	test -n "$signoff" && echo "$signoff" >"$state_dir"/signoff
-	test -n "$reschedule_failed_exec" && : > "$state_dir"/reschedule-failed-exec
-}
-
-apply_autostash () {
-	if test -f "$state_dir/autostash"
-	then
-		stash_sha1=$(cat "$state_dir/autostash")
-		if git stash apply $stash_sha1 >/dev/null 2>&1
-		then
-			echo "$(gettext 'Applied autostash.')" >&2
-		else
-			git stash store -m "autostash" -q $stash_sha1 ||
-			die "$(eval_gettext "Cannot store \$stash_sha1")"
-			gettext '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.
-' >&2
-		fi
-	fi
-}
-
-move_to_original_branch () {
-	case "$head_name" in
-	refs/*)
-		message="rebase finished: $head_name onto $onto"
-		git update-ref -m "$message" \
-			$head_name $(git rev-parse HEAD) $orig_head &&
-		git symbolic-ref \
-			-m "rebase finished: returning to $head_name" \
-			HEAD $head_name ||
-		die "$(eval_gettext "Could not move back to \$head_name")"
-		;;
-	esac
-}
-
-output () {
-	case "$verbose" in
-	'')
-		output=$("$@" 2>&1 )
-		status=$?
-		test $status != 0 && printf "%s\n" "$output"
-		return $status
-		;;
-	*)
-		"$@"
-		;;
-	esac
-}
diff --git a/git-rebase--preserve-merges.sh b/git-rebase--preserve-merges.sh
index afbb65765d..dec90e9af6 100644
--- a/git-rebase--preserve-merges.sh
+++ b/git-rebase--preserve-merges.sh
@@ -77,6 +77,61 @@ rewritten_pending="$state_dir"/rewritten-pending
 # and leaves CR at the end instead.
 cr=$(printf "\015")
 
+resolvemsg="
+$(gettext 'Resolve all conflicts manually, mark them as resolved with
+"git add/rm <conflicted_files>", then run "git rebase --continue".
+You can instead skip this commit: run "git rebase --skip".
+To abort and get back to the state before "git rebase", run "git rebase --abort".')
+"
+
+write_basic_state () {
+	echo "$head_name" > "$state_dir"/head-name &&
+	echo "$onto" > "$state_dir"/onto &&
+	echo "$orig_head" > "$state_dir"/orig-head &&
+	test t = "$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
+	test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt
+	test -n "$signoff" && echo "$signoff" >"$state_dir"/signoff
+	test -n "$reschedule_failed_exec" && : > "$state_dir"/reschedule-failed-exec
+}
+
+apply_autostash () {
+	if test -f "$state_dir/autostash"
+	then
+		stash_sha1=$(cat "$state_dir/autostash")
+		if git stash apply $stash_sha1 >/dev/null 2>&1
+		then
+			echo "$(gettext 'Applied autostash.')" >&2
+		else
+			git stash store -m "autostash" -q $stash_sha1 ||
+			die "$(eval_gettext "Cannot store \$stash_sha1")"
+			gettext '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.
+' >&2
+		fi
+	fi
+}
+
+output () {
+	case "$verbose" in
+	'')
+		output=$("$@" 2>&1 )
+		status=$?
+		test $status != 0 && printf "%s\n" "$output"
+		return $status
+		;;
+	*)
+		"$@"
+		;;
+	esac
+}
+
 strategy_args=${strategy:+--strategy=$strategy}
 test -n "$strategy_opts" &&
 eval '
-- 
gitgitgadget