git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[RFC PATCH 19/35] pull: cleanup autostash check

From
Felipe Contreras <felipe.contreras@gmail.com>
Date
Jul 5, 2021, 12:31 UTC
Message-ID
<20210705123209.1808663-20-felipe.contreras@gmail.com>
In-Reply-To
<20210705123209.1808663-1-felipe.contreras@gmail.com>

Currently "git pull --rebase" takes a shortcut in the case a fast-forward merge is possible; run_merge() is called with --ff-only.

However, "git merge" didn't have an --autostash option, so, when "git pull --rebase --autostash" was called *and* the fast-forward merge shortcut was taken, then the pull failed.

This was fixed in commit f15e7cf5cc (pull: ff --rebase --autostash works in dirty repo, 2017-06-01) by simply skipping the fast-forward merge shortcut.

Later on "git merge" learned the --autostash option [a03b55530a (merge: teach --autostash option, 2020-04-07)], and so did "git pull" [d9f15d37f1 (pull: pass --autostash to merge, 2020-04-07)].

Therefore it's not necessary to skip the fast-forward merge shortcut anymore when called with --rebase --autostash.

Let's always take the fast-forward merge shortcut by essentially reverting f15e7cf5cc.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 builtin/pull.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/builtin/pull.c b/builtin/pull.c
index e8927fc2ff..a22293b7db 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -947,7 +947,6 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	struct oid_array merge_heads = OID_ARRAY_INIT;
 	struct object_id orig_head, curr_head;
 	struct object_id rebase_fork_point;
-	int autostash;
 	int rebase_unspecified = 0;
 	int can_ff;
 
@@ -982,8 +981,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	if (get_oid("HEAD", &orig_head))
 		oidclr(&orig_head);
 
-	autostash = config_autostash;
 	if (opt_rebase) {
+		int autostash = config_autostash;
 		if (opt_autostash != -1)
 			autostash = opt_autostash;
 
@@ -1065,13 +1064,12 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 		     recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) &&
 		    submodule_touches_in_range(the_repository, &upstream, &curr_head))
 			die(_("cannot rebase with locally recorded submodule modifications"));
-		if (!autostash) {
-			if (can_ff) {
-				/* we can fast-forward this without invoking rebase */
-				opt_ff = "--ff-only";
-				ran_ff = 1;
-				ret = run_merge();
-			}
+
+		if (can_ff) {
+			/* we can fast-forward this without invoking rebase */
+			opt_ff = "--ff-only";
+			ran_ff = 1;
+			ret = run_merge();
 		}
 		if (!ran_ff)
 			ret = run_rebase(&newbase, &upstream);
-- 
2.32.0.36.g70aac2b1aa
Previous: Felipe ContrerasNext: Felipe Contreras
Message 37 of 53 in “git update: fix broken git pull”
  1. 00/35 git update: fix broken git pullFelipe Contreras, Jul 5, 2021
  2. 01/35 merge: improve fatal fast-forward messageFelipe Contreras, Jul 5, 2021
  3. Ævar Arnfjörð BjarmasonJul 6, 2021
  4. Felipe ContrerasJul 6, 2021
  5. Randall S. BeckerJul 6, 2021
  6. Junio C HamanoJul 6, 2021
  7. Felipe ContrerasJul 6, 2021
  8. Randall S. BeckerJul 6, 2021
  9. Junio C HamanoJul 6, 2021
  10. Randall S. BeckerJul 6, 2021
  11. Felipe ContrerasJul 6, 2021
  12. Randall S. BeckerJul 6, 2021
  13. Felipe ContrerasJul 6, 2021
  14. 02/35 merge: split cmd_merge()Felipe Contreras, Jul 5, 2021
  15. 03/35 fast-forward: add new builtinFelipe Contreras, Jul 5, 2021
  16. 04/35 doc: fast-forward: explain what it isFelipe Contreras, Jul 5, 2021
  17. 05/35 fast-forward: add advice for novicesFelipe Contreras, Jul 5, 2021
  18. Ævar Arnfjörð BjarmasonJul 6, 2021
  19. Felipe ContrerasJul 6, 2021
  20. 06/35 fast-forward: make the advise configurableFelipe Contreras, Jul 5, 2021
  21. 07/35 fast-forward: add help about merge vs. rebaseFelipe Contreras, Jul 5, 2021
  22. 08/35 update: new built-inFelipe Contreras, Jul 5, 2021
  23. 09/35 update: add options and usage skeletonFelipe Contreras, Jul 5, 2021
  24. 10/35 update: add --ff optionFelipe Contreras, Jul 5, 2021
  25. Ævar Arnfjörð BjarmasonJul 6, 2021
  26. Felipe ContrerasJul 6, 2021
  27. 11/35 update: add --merge modeFelipe Contreras, Jul 5, 2021
  28. Ævar Arnfjörð BjarmasonJul 6, 2021
  29. Felipe ContrerasJul 6, 2021
  30. 12/35 commit: support for multiple MERGE_MODEFelipe Contreras, Jul 5, 2021
  31. 13/35 merge: add --reverse-parents optionFelipe Contreras, Jul 5, 2021
  32. 14/35 update: reverse the order of parentsFelipe Contreras, Jul 5, 2021
  33. 15/35 update: fake a reverse order of parents in messageFelipe Contreras, Jul 5, 2021
  34. 16/35 update: add --rebase modeFelipe Contreras, Jul 5, 2021
  35. 17/35 update: add mode configuationFelipe Contreras, Jul 5, 2021
  36. 18/35 update: add per-branch mode configurationFelipe Contreras, Jul 5, 2021
  37. 19/35 pull: cleanup autostash checkFelipe Contreras, Jul 5, 2021
  38. 20/35 pull: trivial cleanupFelipe Contreras, Jul 5, 2021
  39. 21/35 pull: trivial whitespace style fixFelipe Contreras, Jul 5, 2021
  40. 22/35 pull: introduce --merge optionFelipe Contreras, Jul 5, 2021
  41. 23/35 rebase: add REBASE_DEFAULTFelipe Contreras, Jul 5, 2021
  42. 24/35 pull: move configuration fetchesFelipe Contreras, Jul 5, 2021
  43. 25/35 pull: show warning with --ff optionsFelipe Contreras, Jul 5, 2021
  44. 26/35 pull: add pull.modeFelipe Contreras, Jul 5, 2021
  45. 27/35 pull: add per-branch mode configurationFelipe Contreras, Jul 5, 2021
  46. 28/35 pull: add pull.mode=fast-forwardFelipe Contreras, Jul 5, 2021
  47. 29/35 pull: reorganize mode conditionalsFelipe Contreras, Jul 5, 2021
  48. 30/35 pull: add diverging advice on fast-forward modeFelipe Contreras, Jul 5, 2021
  49. 31/35 pull: improve --rebase and pull.rebase interactionFelipe Contreras, Jul 5, 2021
  50. 32/35 pull: improve default warningFelipe Contreras, Jul 5, 2021
  51. 33/35 pull: advice of future changesFelipe Contreras, Jul 5, 2021
  52. 34/35 FUTURE: pull: enable ff-only mode by defaultFelipe Contreras, Jul 5, 2021
  53. 35/35 !fixup FUTURE: pull: enable ff-only mode by defaultFelipe Contreras, Jul 5, 2021

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.