From: Denton Liu <liu.denton@gmail.com>
To: Git Mailing List <git@vger.kernel.org>
Cc: "Eric Sunshine" <sunshine@sunshineco.com>,
"Junio C Hamano" <gitster@pobox.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
"Johannes Sixt" <j6t@kdbg.org>,
"SZEDER Gábor" <szeder.dev@gmail.com>
Subject: [PATCH v6 0/5] rebase: teach rebase --keep-base
Date: Wed, 17 Apr 2019 11:01:22 -0700 [thread overview]
Message-ID: <cover.1555523176.git.liu.denton@gmail.com> (raw)
In-Reply-To: <cover.1554500051.git.liu.denton@gmail.com>
Thanks for the comments, Junio and Phillip.
I've fixed the ASCII art graphs and also refactored the if-else into a
goto tower.
Hopefully, this will be the last reroll of this series ;)
---
This patchset now depends "[PATCH 1/8] tests (rebase): spell out the
`--keep-empty` option" which is the first patch of Johannes's "Do not
use abbreviated options in tests" patchset[1]. (Thanks for catching
that, Johannes!)
Changes since v1:
* Squashed old set into one patch
* Fixed indentation style and dangling else
* Added more documentation after discussion with Ævar
Changes since v2:
* Add testing for rebase --fork-point behaviour
* Add testing for rebase fast-forward behaviour
* Make rebase --onto fast-forward in more cases
* Update documentation to include use-case
Changes since v3:
* Fix tests failing on bash 4.2
* Fix typo in t3431 comment
Changes since v4:
* Make rebase --fork-point fast-forward in more cases
Changes since v5:
* Fix graph illustrations so that the "branch off" is visually in the
correct place
* Refactor if-else in can_fast_forward into one-level-deep ifs to
increase clarity
[1]: https://public-inbox.org/git/a1b4b74b9167e279dae4cd8c58fb28d8a714a66a.1553537656.git.gitgitgadget@gmail.com/
Denton Liu (6):
t3431: add rebase --fork-point tests
t3432: test rebase fast-forward behavior
rebase: refactor can_fast_forward into goto tower
rebase: fast-forward --onto in more cases
rebase: fast-forward --fork-point in more cases
rebase: teach rebase --keep-base
Documentation/git-rebase.txt | 30 +++++++++--
builtin/rebase.c | 86 +++++++++++++++++++++++---------
t/t3400-rebase.sh | 2 +-
t/t3404-rebase-interactive.sh | 2 +-
t/t3416-rebase-onto-threedots.sh | 57 +++++++++++++++++++++
t/t3431-rebase-fork-point.sh | 57 +++++++++++++++++++++
t/t3432-rebase-fast-forward.sh | 83 ++++++++++++++++++++++++++++++
7 files changed, 289 insertions(+), 28 deletions(-)
create mode 100755 t/t3431-rebase-fork-point.sh
create mode 100755 t/t3432-rebase-fast-forward.sh
Range-diff against v5:
1: 0f1e9ac5c8 ! 1: eb64f6c91d t3431: add rebase --fork-point tests
@@ -18,9 +18,9 @@
+
+. ./test-lib.sh
+
-+# A---B---D---E (master)
-+# \
-+# C*---F---G (side)
++# A---B---D---E (master)
++# \
++# C*---F---G (side)
+#
+# C was formerly part of master but master was rewound to remove C
+#
2: 148027a14b = 2: 4c087ec041 t3432: test rebase fast-forward behavior
-: ---------- > 3: 3d348d2c37 rebase: refactor can_fast_forward into goto tower
3: ec55da0719 ! 4: 2559ab54a2 rebase: fast-forward --onto in more cases
@@ -5,8 +5,8 @@
Before, when we had the following graph,
A---B---C (master)
- \
- D (side)
+ \
+ D (side)
running 'git rebase --onto master... master side' would result in D
being always rebased, no matter what. However, the desired behavior is
@@ -49,6 +49,7 @@
While we're at it, remove a trailing whitespace from rebase.c.
+ Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
diff --git a/builtin/rebase.c b/builtin/rebase.c
@@ -64,45 +65,26 @@
+ struct object_id *head_oid, struct object_id *merge_base)
{
struct commit *head = lookup_commit(the_repository, head_oid);
-- struct commit_list *merge_bases;
-- int res;
-+ struct commit_list *merge_bases = NULL;
-+ int res = 0;
-
- if (!head)
- return 0;
+ struct commit_list *merge_bases = NULL;
@@
- merge_bases = get_merge_bases(onto, head);
- if (merge_bases && !merge_bases->next) {
- oidcpy(merge_base, &merge_bases->item->object.oid);
-- res = oideq(merge_base, &onto->object.oid);
-+ if (!oideq(merge_base, &onto->object.oid))
-+ goto done;
- } else {
- oidcpy(merge_base, &null_oid);
-- res = 0;
-+ goto done;
- }
-+
+ if (!oideq(merge_base, &onto->object.oid))
+ goto done;
+
+ if (!upstream)
+ goto done;
+
- free_commit_list(merge_bases);
++ free_commit_list(merge_bases);
+ merge_bases = get_merge_bases(upstream, head);
-+ if (merge_bases && !merge_bases->next) {
-+ if (!oideq(&onto->object.oid, &merge_bases->item->object.oid))
-+ goto done;
-+ } else
++ if (!merge_bases || merge_bases->next) {
+ goto done;
++ }
+
-+ res = 1;
++ if (!oideq(&onto->object.oid, &merge_bases->item->object.oid))
++ goto done;
+
-+done:
-+ if (merge_bases)
-+ free_commit_list(merge_bases);
- return res && is_linear_history(onto, head);
- }
+ res = 1;
+ done:
@@
/*
@@ -115,7 +97,8 @@
- !is_interactive(&options) && !options.restrict_revision &&
- options.upstream &&
- !oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) {
-+ if (can_fast_forward(options.onto, options.upstream, &options.orig_head, &merge_base) &&
++ if (can_fast_forward(options.onto, options.upstream, &options.orig_head,
++ &merge_base) &&
+ !is_interactive(&options) && !options.restrict_revision) {
int flag;
4: 2256a902c1 ! 5: 0a466e830f rebase: fast-forward --fork-point in more cases
@@ -27,8 +27,8 @@
{
struct commit *head = lookup_commit(the_repository, head_oid);
@@
+ if (!oideq(merge_base, &onto->object.oid))
goto done;
- }
+ if (restrict_revision && !oideq(&restrict_revision->object.oid, merge_base))
+ goto done;
@@ -40,7 +40,8 @@
* Check if we are already based on onto with linear history,
* but this should be done if this is not an interactive rebase.
*/
-- if (can_fast_forward(options.onto, options.upstream, &options.orig_head, &merge_base) &&
+- if (can_fast_forward(options.onto, options.upstream, &options.orig_head,
+- &merge_base) &&
- !is_interactive(&options) && !options.restrict_revision) {
+ if (can_fast_forward(options.onto, options.upstream, options.restrict_revision,
+ &options.orig_head, &merge_base) &&
5: d6e7e1ca4b = 6: c542c7afc1 rebase: teach rebase --keep-base
--
2.21.0.944.gce45564dfd
next prev parent reply other threads:[~2019-04-17 18:01 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-23 15:25 [PATCH 0/3] rebase: learn --keep-base Denton Liu
2019-03-23 15:25 ` [PATCH 1/3] rebase: teach rebase --keep-base Denton Liu
2019-03-24 3:46 ` Eric Sunshine
2019-03-24 13:20 ` Junio C Hamano
2019-03-25 0:06 ` Denton Liu
2019-03-25 5:41 ` Denton Liu
2019-04-01 10:45 ` Junio C Hamano
2019-03-24 13:37 ` Junio C Hamano
2019-03-25 5:47 ` Denton Liu
2019-03-25 18:50 ` Johannes Schindelin
2019-03-25 19:29 ` Denton Liu
2019-03-26 13:27 ` Johannes Schindelin
2019-03-23 15:25 ` [PATCH 2/3] t3416: test " Denton Liu
2019-03-23 15:25 ` [PATCH 3/3] git-rebase.txt: document --keep-base option Denton Liu
2019-03-24 13:15 ` [PATCH 0/3] rebase: learn --keep-base Junio C Hamano
2019-03-25 0:04 ` Denton Liu
2019-04-01 10:45 ` Junio C Hamano
2019-03-26 14:35 ` Ævar Arnfjörð Bjarmason
2019-03-26 17:50 ` Denton Liu
2019-03-26 20:35 ` Ævar Arnfjörð Bjarmason
2019-03-26 21:30 ` Denton Liu
2019-03-27 15:39 ` Ævar Arnfjörð Bjarmason
2019-03-28 22:17 ` [PATCH v2] rebase: teach rebase --keep-base Denton Liu
2019-03-28 23:13 ` Ævar Arnfjörð Bjarmason
2019-03-29 15:47 ` Johannes Schindelin
2019-03-29 17:52 ` Denton Liu
2019-04-01 10:46 ` Junio C Hamano
2019-04-01 20:51 ` [PATCH v3 0/4] " Denton Liu
2019-04-01 20:51 ` [PATCH v3 1/4] t3431: add rebase --fork-point tests Denton Liu
2019-04-04 20:28 ` Denton Liu
2019-04-05 11:15 ` SZEDER Gábor
2019-04-08 4:38 ` Junio C Hamano
2019-04-05 14:55 ` Johannes Schindelin
2019-04-05 17:25 ` Denton Liu
2019-04-05 17:51 ` Johannes Sixt
2019-04-05 18:51 ` Johannes Schindelin
2019-04-05 20:19 ` Johannes Schindelin
2019-04-05 21:10 ` SZEDER Gábor
2019-04-01 20:51 ` [PATCH v3 2/4] t3432: test rebase fast-forward behavior Denton Liu
2019-04-01 20:52 ` [PATCH v3 3/4] rebase: fast-forward --onto in more cases Denton Liu
2019-04-02 1:25 ` Junio C Hamano
2019-04-02 1:48 ` Junio C Hamano
2019-04-02 4:44 ` Denton Liu
2019-04-01 20:52 ` [PATCH v3 4/4] rebase: teach rebase --keep-base Denton Liu
2019-04-05 21:39 ` [PATCH v4 0/4] " Denton Liu
2019-04-05 21:40 ` [PATCH v4 1/4] t3431: add rebase --fork-point tests Denton Liu
2019-04-05 21:40 ` [PATCH v4 2/4] t3432: test rebase fast-forward behavior Denton Liu
2019-04-05 21:40 ` [PATCH v4 3/4] rebase: fast-forward --onto in more cases Denton Liu
2019-04-05 21:40 ` [PATCH v4 4/4] rebase: teach rebase --keep-base Denton Liu
2019-04-15 22:29 ` [PATCH v5 0/5] " Denton Liu
2019-04-15 22:29 ` [PATCH v5 1/5] t3431: add rebase --fork-point tests Denton Liu
2019-04-15 22:29 ` [PATCH v5 2/5] t3432: test rebase fast-forward behavior Denton Liu
2019-04-15 22:29 ` [PATCH v5 3/5] rebase: fast-forward --onto in more cases Denton Liu
2019-04-16 6:26 ` Junio C Hamano
2019-04-16 13:59 ` Phillip Wood
2019-04-17 6:44 ` Denton Liu
2019-04-17 14:14 ` Phillip Wood
2019-04-19 17:08 ` Denton Liu
2019-04-15 22:29 ` [PATCH v5 4/5] rebase: fast-forward --fork-point " Denton Liu
2019-04-15 22:29 ` [PATCH v5 5/5] rebase: teach rebase --keep-base Denton Liu
2019-04-17 18:01 ` Denton Liu [this message]
2019-04-17 18:01 ` [PATCH v6 1/6] t3431: add rebase --fork-point tests Denton Liu
2019-04-17 18:01 ` [PATCH v6 2/6] t3432: test rebase fast-forward behavior Denton Liu
2019-04-17 18:01 ` [PATCH v6 3/6] rebase: refactor can_fast_forward into goto tower Denton Liu
2019-04-17 18:01 ` [PATCH v6 4/6] rebase: fast-forward --onto in more cases Denton Liu
2019-04-17 19:59 ` Phillip Wood
2019-04-17 18:01 ` [PATCH v6 5/6] rebase: fast-forward --fork-point " Denton Liu
2019-04-17 18:01 ` [PATCH v6 6/6] rebase: teach rebase --keep-base Denton Liu
2019-04-21 8:11 ` [PATCH v7 0/6] rebase: learn --keep-base Denton Liu
2019-04-21 8:11 ` [PATCH v7 1/6] t3431: add rebase --fork-point tests Denton Liu
2019-04-23 23:12 ` Denton Liu
2019-04-21 8:11 ` [PATCH v7 2/6] t3432: test rebase fast-forward behavior Denton Liu
2019-04-21 8:11 ` [PATCH v7 3/6] rebase: refactor can_fast_forward into goto tower Denton Liu
2019-04-21 8:11 ` [PATCH v7 4/6] rebase: fast-forward --onto in more cases Denton Liu
2019-04-21 8:11 ` [PATCH v7 5/6] rebase: fast-forward --fork-point " Denton Liu
2019-04-21 8:11 ` [PATCH v7 6/6] rebase: teach rebase --keep-base Denton Liu
2019-05-08 0:12 ` [RFC WIP PATCH v8 00/13] learn --keep-base & more Ævar Arnfjörð Bjarmason
2019-05-08 3:57 ` Junio C Hamano
2019-07-19 19:14 ` Junio C Hamano
2019-07-19 21:01 ` Denton Liu
2019-08-25 9:11 ` [PATCH v9 0/9] rebase: learn --keep-base and improvements on fast-forward behaviour Denton Liu
2019-08-25 9:11 ` [PATCH v9 1/9] t3431: add rebase --fork-point tests Denton Liu
2019-08-25 9:12 ` [PATCH v9 2/9] t3432: test rebase fast-forward behavior Denton Liu
2019-08-25 9:12 ` [PATCH v9 3/9] t3432: distinguish "noop-same" v.s. "work-same" in "same head" tests Denton Liu
2019-08-25 9:12 ` [PATCH v9 4/9] t3432: test for --no-ff's interaction with fast-forward Denton Liu
2019-08-25 9:12 ` [PATCH v9 5/9] rebase: refactor can_fast_forward into goto tower Denton Liu
2019-08-25 13:17 ` Pratyush Yadav
2019-08-26 23:17 ` Denton Liu
2019-08-25 9:12 ` [PATCH v9 6/9] rebase: fast-forward --onto in more cases Denton Liu
2019-08-25 9:12 ` [PATCH v9 7/9] rebase: fast-forward --fork-point " Denton Liu
2019-08-25 9:12 ` [PATCH v9 8/9] rebase tests: test linear branch topology Denton Liu
2019-08-25 9:12 ` [PATCH v9 9/9] rebase: teach rebase --keep-base Denton Liu
2019-08-25 22:59 ` Philip Oakley
2019-08-26 19:37 ` [PATCH v9 0/9] rebase: learn --keep-base and improvements on fast-forward behaviour Junio C Hamano
2019-08-27 5:37 ` [PATCH v10 " Denton Liu
2019-08-27 5:37 ` [PATCH v10 1/9] t3431: add rebase --fork-point tests Denton Liu
2019-08-27 5:37 ` [PATCH v10 2/9] t3432: test rebase fast-forward behavior Denton Liu
2019-08-27 5:37 ` [PATCH v10 3/9] t3432: distinguish "noop-same" v.s. "work-same" in "same head" tests Denton Liu
2019-08-27 5:37 ` [PATCH v10 4/9] t3432: test for --no-ff's interaction with fast-forward Denton Liu
2019-08-27 8:11 ` SZEDER Gábor
2019-08-27 5:37 ` [PATCH v10 5/9] rebase: refactor can_fast_forward into goto tower Denton Liu
2019-08-27 5:37 ` [PATCH v10 6/9] rebase: fast-forward --onto in more cases Denton Liu
2019-08-27 5:38 ` [PATCH v10 7/9] rebase: fast-forward --fork-point " Denton Liu
2019-08-27 5:38 ` [PATCH v10 8/9] rebase tests: test linear branch topology Denton Liu
2019-08-27 5:38 ` [PATCH v10 9/9] rebase: teach rebase --keep-base Denton Liu
2019-05-08 0:12 ` [RFC WIP PATCH v8 01/13] t3431: add rebase --fork-point tests Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 02/13] t3432: test rebase fast-forward behavior Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 03/13] t3432: distinguish "noop-same" v.s. "work-same" in "same head" tests Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 04/13] t3432: test for --no-ff's interaction with fast-forward Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 05/13] rebase: refactor can_fast_forward into goto tower Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 06/13] rebase: fast-forward --onto in more cases Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 07/13] rebase: fast-forward --fork-point " Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 08/13] rebase: teach rebase --keep-base Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 09/13] rebase tests: test linear branch topology Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 10/13] rebase: don't rebase linear topology with --fork-point Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 11/13] rebase: eliminate side-effects from can_fast_forward() Ævar Arnfjörð Bjarmason
2019-05-17 21:16 ` Johannes Schindelin
2019-05-08 0:12 ` [RFC WIP PATCH v8 12/13] rebase: add a should_fast_forward() utility function Ævar Arnfjörð Bjarmason
2019-05-08 0:12 ` [RFC WIP PATCH v8 13/13] WIP: can_fast_forward() support for --preserve-merges and --rebase-merges Ævar Arnfjörð Bjarmason
2019-05-17 22:02 ` Johannes Schindelin
2019-04-06 19:44 ` [PATCH v3 0/4] rebase: teach rebase --keep-base Ævar Arnfjörð Bjarmason
2019-04-06 20:38 ` Denton Liu
2019-04-13 21:10 ` Ævar Arnfjörð Bjarmason
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