git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Denton Liu <liu.denton@gmail.com>
To: phillip.wood@dunelm.org.uk
Cc: Git Mailing List <git@vger.kernel.org>,
	Alban Gruin <alban.gruin@gmail.com>,
	Johannes Schindelin <johannes.schindelin@gmx.de>,
	Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH v3 17/19] merge: teach --autostash option
Date: Fri, 3 Apr 2020 06:56:39 -0400	[thread overview]
Message-ID: <20200403105639.GA3193506@generichostname> (raw)
In-Reply-To: <20200403103126.GA3163329@generichostname>

On Fri, Apr 03, 2020 at 06:31:26AM -0400, Denton Liu wrote:
> > > diff --git a/builtin/reset.c b/builtin/reset.c
> > > index 18228c312e..038c8532eb 100644
> > > --- a/builtin/reset.c
> > > +++ b/builtin/reset.c
> > > @@ -25,6 +25,7 @@
> > >   #include "cache-tree.h"
> > >   #include "submodule.h"
> > >   #include "submodule-config.h"
> > > +#include "sequencer.h"
> > >   #define REFRESH_INDEX_DELAY_WARNING_IN_MS (2 * 1000)
> > > @@ -437,8 +438,12 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
> > >   		if (reset_type == HARD && !update_ref_status && !quiet)
> > >   			print_new_head_line(lookup_commit_reference(the_repository, &oid));
> > >   	}
> > > -	if (!pathspec.nr)
> > > +	if (!pathspec.nr) {
> > > +		if (reset_type == HARD)
> > > +			save_autostash(git_path_merge_autostash(the_repository));
> > > +
> > >   		remove_branch_state(the_repository, 0);
> > 
> > This removes the autostash file for all reset types but we only keep the
> > stash in the case of 'reset --hard' which is confusing.
> 
> I was worried that this change would be controversial... The rationale
> behind this change was that with `reset --hard`, we want to leave a
> clean working tree behind so we save it into the stash reflog. In all
> other cases, remove_branch_state() will apply the saved stash entry
> which should be fine since users don't expect a clean worktree with the
> other reset types.
> 
> I considered saving the autostash in all cases of reset but
> `git merge --abort` invokes `git reset --merge` behind the scenes so
> we'd have to consider that. Perhaps we can make all resets save the
> stash entry and, in the case of `merge --abort`, we can add some extra
> logic to subvert this so that the stash entry is applied?

Perhaps something like this?

-- >8 --
commit 14d0b569cb7675f00d32d3d7fad7564fcaeca458
Author: Denton Liu <liu.denton@gmail.com>
Date:   Fri Apr 3 06:50:34 2020 -0400

    squash! merge: teach --autostash option
    
    Stash is saved when any reset is run, when git merge --abort is run,
    stash is applied.

diff --git a/builtin/merge.c b/builtin/merge.c
index 9573d77096..31b82d614c 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -1242,6 +1242,8 @@ static int merging_a_throwaway_tag(struct commit *commit)
 	return is_throwaway_tag;
 }
 
+static GIT_PATH_FUNC(git_path_merge_autostash_saved, "MERGE_AUTOSTASH_SAVED")
+
 int cmd_merge(int argc, const char **argv, const char *prefix)
 {
 	struct object_id result_tree, stash, head_oid;
@@ -1295,9 +1297,16 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 		if (!file_exists(git_path_merge_head(the_repository)))
 			die(_("There is no merge to abort (MERGE_HEAD missing)."));
 
+		if (file_exists(git_path_merge_autostash(the_repository))) {
+			if (rename(git_path_merge_autostash(the_repository),
+						git_path_merge_autostash_saved()))
+				die_errno(_("failed to rename autostash"));
+		}
+
 		/* Invoke 'git reset --merge' */
 		ret = cmd_reset(nargc, nargv, prefix);
-		apply_autostash(git_path_merge_autostash(the_repository));
+
+		apply_autostash(git_path_merge_autostash_saved());
 		goto done;
 	}
 
diff --git a/builtin/reset.c b/builtin/reset.c
index 038c8532eb..060470c455 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -439,9 +439,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 			print_new_head_line(lookup_commit_reference(the_repository, &oid));
 	}
 	if (!pathspec.nr) {
-		if (reset_type == HARD)
-			save_autostash(git_path_merge_autostash(the_repository));
-
+		save_autostash(git_path_merge_autostash(the_repository));
 		remove_branch_state(the_repository, 0);
 	}
 
> 
> I'm not sure about what the most intuitive behaviour is. I thought that
> this implementation would be the best but I'm not entirely sure. I'd
> appreciate some more discussion on this.
> 
> Thanks,
> 
> Denton
> 
> > Best Wishes
> > 
> > Phillip
> > 
> > > +	}
> > >   	return update_ref_status;
> > >   }

  reply	other threads:[~2020-04-03 10:56 UTC|newest]

Thread overview: 152+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-16 17:26 [RFC PATCH 0/7] merge: learn --autostash Denton Liu
2019-10-16 17:26 ` [RFC PATCH 1/7] Makefile: alphabetically sort += lists Denton Liu
2019-10-17 18:07   ` Junio C Hamano
2019-10-21 18:44     ` Johannes Schindelin
2019-10-21 18:53       ` Denton Liu
2019-10-22 23:33         ` Johannes Schindelin
2019-10-21 19:49       ` Junio C Hamano
2019-10-21 19:54         ` Jeff King
2019-10-22 11:34           ` Junio C Hamano
2019-10-16 17:26 ` [RFC PATCH 2/7] autostash: extract read_one() from rebase Denton Liu
2019-10-18  9:04   ` Phillip Wood
2019-10-21 18:46     ` Johannes Schindelin
2019-10-16 17:26 ` [RFC PATCH 3/7] autostash: extract apply_autostash() " Denton Liu
2019-10-16 17:26 ` [RFC PATCH 4/7] autostash: extract reset_head() " Denton Liu
2019-10-18  9:37   ` Phillip Wood
2019-10-21 18:56     ` Johannes Schindelin
2019-10-16 17:26 ` [RFC PATCH 5/7] autostash: extract perform_autostash() " Denton Liu
2019-10-21 19:00   ` Johannes Schindelin
2019-10-16 17:26 ` [RFC PATCH 6/7] autostash.c: undefine USE_THE_INDEX_COMPATIBILITY_MACROS Denton Liu
2019-10-18  9:41   ` Phillip Wood
2019-10-16 17:26 ` [RFC PATCH 7/7] merge: teach --autostash option Denton Liu
2019-10-18  9:46   ` Phillip Wood
2019-12-24  9:58     ` Denton Liu
2019-10-21 19:10   ` Johannes Schindelin
2019-12-24 10:05     ` Denton Liu
2019-12-24 10:12       ` Denton Liu
2019-12-24 11:04 ` [PATCH v2 00/17] merge: learn --autostash Denton Liu
2019-12-24 11:04   ` [PATCH v2 01/17] Makefile: alphabetically sort += lists Denton Liu
2019-12-30 21:38     ` Junio C Hamano
2019-12-24 11:04   ` [PATCH v2 02/17] t7600: use test_write_lines() Denton Liu
2019-12-24 11:05   ` [PATCH v2 03/17] sequencer: use file strbuf for read_oneliner() Denton Liu
2019-12-24 11:05   ` [PATCH v2 04/17] sequencer: configurably warn on non-existent files Denton Liu
2019-12-26 20:39     ` Junio C Hamano
2019-12-24 11:05   ` [PATCH v2 05/17] sequencer: make read_oneliner() extern Denton Liu
2019-12-24 11:05   ` [PATCH v2 06/17] rebase: use read_oneliner() Denton Liu
2019-12-24 11:05   ` [PATCH v2 07/17] sequencer: make apply_rebase() accept a path Denton Liu
2019-12-24 11:05   ` [PATCH v2 08/17] rebase: use apply_autostash() from sequencer.c Denton Liu
2019-12-24 11:05   ` [PATCH v2 09/17] rebase: generify reset_head() Denton Liu
2019-12-24 11:05   ` [PATCH v2 10/17] reset: extract reset_head() from rebase Denton Liu
2019-12-24 11:05   ` [PATCH v2 11/17] rebase: extract create_autostash() Denton Liu
2019-12-24 11:05   ` [PATCH v2 12/17] rebase: generify create_autostash() Denton Liu
2019-12-24 11:05   ` [PATCH v2 13/17] sequencer: extract perform_autostash() from rebase Denton Liu
2019-12-24 11:05   ` [PATCH v2 14/17] sequencer: unlink autostash in apply_autostash() Denton Liu
2019-12-24 11:05   ` [PATCH v2 15/17] merge: teach --autostash option Denton Liu
2019-12-24 11:05   ` [PATCH v2 16/17] t5520: make test_pull_autostash() accept expect_parent_num Denton Liu
2019-12-24 11:05   ` [PATCH v2 17/17] pull: pass --autostash to merge Denton Liu
2019-12-30 21:49   ` [PATCH v2 00/17] merge: learn --autostash Junio C Hamano
2019-12-31 10:34     ` Phillip Wood
2020-01-08  6:08       ` Denton Liu
2020-01-10 14:44         ` Phillip Wood
2020-01-15 16:20           ` Denton Liu
2020-01-01  7:48     ` Denton Liu
2020-03-21  9:21   ` [PATCH v3 00/19] " Denton Liu
2020-03-21  9:21     ` [PATCH v3 01/19] Makefile: ASCII-sort += lists Denton Liu
2020-03-21  9:21     ` [PATCH v3 02/19] t7600: use test_write_lines() Denton Liu
2020-03-21  9:21     ` [PATCH v3 03/19] sequencer: use file strbuf for read_oneliner() Denton Liu
2020-04-02 13:34       ` Phillip Wood
2020-03-21  9:21     ` [PATCH v3 04/19] sequencer: make read_oneliner() accept flags Denton Liu
2020-03-21  9:21     ` [PATCH v3 05/19] sequencer: configurably warn on non-existent files Denton Liu
2020-04-02 13:39       ` Phillip Wood
2020-03-21  9:21     ` [PATCH v3 06/19] sequencer: make read_oneliner() extern Denton Liu
2020-03-21  9:21     ` [PATCH v3 07/19] rebase: use read_oneliner() Denton Liu
2020-04-02 13:41       ` Phillip Wood
2020-03-21  9:21     ` [PATCH v3 08/19] sequencer: make apply_rebase() accept a path Denton Liu
2020-03-21  9:21     ` [PATCH v3 09/19] rebase: use apply_autostash() from sequencer.c Denton Liu
2020-04-02 14:59       ` Phillip Wood
2020-03-21  9:21     ` [PATCH v3 10/19] rebase: generify reset_head() Denton Liu
2020-03-21  9:21     ` [PATCH v3 11/19] reset: extract reset_head() from rebase Denton Liu
2020-04-02 15:04       ` Phillip Wood
2020-03-21  9:21     ` [PATCH v3 12/19] rebase: extract create_autostash() Denton Liu
2020-03-21  9:21     ` [PATCH v3 13/19] rebase: generify create_autostash() Denton Liu
2020-03-21  9:21     ` [PATCH v3 14/19] sequencer: extract perform_autostash() from rebase Denton Liu
2020-03-21  9:21     ` [PATCH v3 15/19] sequencer: unlink autostash in apply_autostash() Denton Liu
2020-03-21  9:21     ` [PATCH v3 16/19] sequencer: implement save_autostash() Denton Liu
2020-04-02 15:10       ` Phillip Wood
2020-03-21  9:21     ` [PATCH v3 17/19] merge: teach --autostash option Denton Liu
2020-04-02 15:24       ` Phillip Wood
2020-04-03 10:31         ` Denton Liu
2020-04-03 10:56           ` Denton Liu [this message]
2020-04-03 13:09             ` Phillip Wood
2020-04-03 21:14               ` Denton Liu
2020-04-03 13:34           ` Phillip Wood
2020-04-03 22:25             ` Denton Liu
2020-03-21  9:21     ` [PATCH v3 18/19] t5520: make test_pull_autostash() accept expect_parent_num Denton Liu
2020-03-21  9:21     ` [PATCH v3 19/19] pull: pass --autostash to merge Denton Liu
2020-04-02 16:07       ` Phillip Wood
2020-04-04  1:11     ` [PATCH v4 00/23] merge: learn --autostash Denton Liu
2020-04-04  1:11       ` [PATCH v4 01/23] Makefile: ASCII-sort += lists Denton Liu
2020-04-04  1:11       ` [PATCH v4 02/23] t7600: use test_write_lines() Denton Liu
2020-04-04  1:11       ` [PATCH v4 03/23] sequencer: stop leaking buf Denton Liu
2020-04-05 21:33         ` Junio C Hamano
2020-04-05 21:37           ` Junio C Hamano
2020-04-05 23:42           ` Denton Liu
2020-04-04  1:11       ` [PATCH v4 04/23] sequencer: reuse strbuf_trim() in read_oneliner() Denton Liu
2020-04-05 21:46         ` Junio C Hamano
2020-04-06  1:39           ` Denton Liu
2020-04-06 14:03         ` Phillip Wood
2020-04-06 14:42           ` Phillip Wood
2020-04-07 13:56             ` Denton Liu
2020-04-04  1:11       ` [PATCH v4 05/23] sequencer: make file exists check more efficient Denton Liu
2020-04-04  1:11       ` [PATCH v4 06/23] sequencer: make read_oneliner() accept flags Denton Liu
2020-04-04  1:11       ` [PATCH v4 07/23] sequencer: configurably warn on non-existent files Denton Liu
2020-04-06 14:45         ` Phillip Wood
2020-04-04  1:11       ` [PATCH v4 08/23] sequencer: make read_oneliner() extern Denton Liu
2020-04-04  1:11       ` [PATCH v4 09/23] rebase: use read_oneliner() Denton Liu
2020-04-04  1:11       ` [PATCH v4 10/23] sequencer: make apply_rebase() accept a path Denton Liu
2020-04-06 15:07         ` Phillip Wood
2020-04-04  1:11       ` [PATCH v4 11/23] sequencer: rename stash_sha1 to stash_oid Denton Liu
2020-04-04  1:11       ` [PATCH v4 12/23] rebase: use apply_autostash() from sequencer.c Denton Liu
2020-04-04  1:11       ` [PATCH v4 13/23] rebase: generify reset_head() Denton Liu
2020-04-04  1:11       ` [PATCH v4 14/23] reset: extract reset_head() from rebase Denton Liu
2020-04-04  1:11       ` [PATCH v4 15/23] rebase: extract create_autostash() Denton Liu
2020-04-04  1:11       ` [PATCH v4 16/23] rebase: generify create_autostash() Denton Liu
2020-04-04  1:11       ` [PATCH v4 17/23] sequencer: extract perform_autostash() from rebase Denton Liu
2020-04-04  1:11       ` [PATCH v4 18/23] sequencer: unlink autostash in apply_autostash() Denton Liu
2020-04-04  1:11       ` [PATCH v4 19/23] sequencer: implement save_autostash() Denton Liu
2020-04-06 15:15         ` Phillip Wood
2020-04-04  1:11       ` [PATCH v4 20/23] sequencer: implement apply_autostash_oid() Denton Liu
2020-04-04  1:11       ` [PATCH v4 21/23] merge: teach --autostash option Denton Liu
2020-04-06 15:20         ` Phillip Wood
2020-04-07 13:09           ` Denton Liu
2020-04-07 15:06             ` Phillip Wood
2020-04-04  1:11       ` [PATCH v4 22/23] t5520: make test_pull_autostash() accept expect_parent_num Denton Liu
2020-04-04  1:11       ` [PATCH v4 23/23] pull: pass --autostash to merge Denton Liu
2020-04-07 14:27       ` [PATCH v5 00/22] merge: learn --autostash Denton Liu
2020-04-07 14:27         ` [PATCH v5 01/22] Makefile: ASCII-sort += lists Denton Liu
2020-04-07 14:27         ` [PATCH v5 02/22] t7600: use test_write_lines() Denton Liu
2020-04-07 14:27         ` [PATCH v5 03/22] sequencer: stop leaking buf Denton Liu
2020-04-07 14:27         ` [PATCH v5 04/22] sequencer: make file exists check more efficient Denton Liu
2020-04-08  0:10           ` Junio C Hamano
2020-04-07 14:27         ` [PATCH v5 05/22] sequencer: make read_oneliner() accept flags Denton Liu
2020-04-08  0:11           ` Junio C Hamano
2020-04-07 14:27         ` [PATCH v5 06/22] sequencer: configurably warn on non-existent files Denton Liu
2020-04-07 14:27         ` [PATCH v5 07/22] sequencer: make read_oneliner() extern Denton Liu
2020-04-07 14:27         ` [PATCH v5 08/22] rebase: use read_oneliner() Denton Liu
2020-04-08  0:26           ` Junio C Hamano
2020-04-07 14:27         ` [PATCH v5 09/22] sequencer: make apply_autostash() accept a path Denton Liu
2020-04-07 14:27         ` [PATCH v5 10/22] sequencer: rename stash_sha1 to stash_oid Denton Liu
2020-04-07 14:27         ` [PATCH v5 11/22] rebase: use apply_autostash() from sequencer.c Denton Liu
2020-04-07 14:27         ` [PATCH v5 12/22] rebase: generify reset_head() Denton Liu
2020-04-07 14:28         ` [PATCH v5 13/22] reset: extract reset_head() from rebase Denton Liu
2020-04-07 14:28         ` [PATCH v5 14/22] rebase: extract create_autostash() Denton Liu
2020-04-07 14:28         ` [PATCH v5 15/22] rebase: generify create_autostash() Denton Liu
2020-04-07 14:28         ` [PATCH v5 16/22] sequencer: extract perform_autostash() from rebase Denton Liu
2020-04-07 14:28         ` [PATCH v5 17/22] sequencer: unlink autostash in apply_autostash() Denton Liu
2020-04-07 14:28         ` [PATCH v5 18/22] sequencer: implement save_autostash() Denton Liu
2020-04-07 14:28         ` [PATCH v5 19/22] sequencer: implement apply_autostash_oid() Denton Liu
2020-04-07 14:28         ` [PATCH v5 20/22] merge: teach --autostash option Denton Liu
2020-04-07 14:28         ` [PATCH v5 21/22] t5520: make test_pull_autostash() accept expect_parent_num Denton Liu
2020-04-07 14:28         ` [PATCH v5 22/22] pull: pass --autostash to merge Denton Liu
2020-04-10 15:34         ` [PATCH v5 00/22] merge: learn --autostash Phillip Wood
2020-04-10 16:26           ` Junio C Hamano

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: http://vger.kernel.org/majordomo-info.html

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200403105639.GA3193506@generichostname \
    --to=liu.denton@gmail.com \
    --cc=alban.gruin@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=gitster@pobox.com \
    --cc=johannes.schindelin@gmx.de \
    --cc=phillip.wood@dunelm.org.uk \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).