Re: Possible bug with `export-subst' attribute

[Jonathan Nieder <jrnieder@gmail.com>]

Ilari Liusvaara wrote:

> I remember seeing similar stuff. It isn't just archive, I also rember seeing
> commit printing full hashes in that informational line it prints when it has
> made the commit (IIRC, normally that hash is abbrevated).

My bad.  Would something like this fix it?

-- 8< --
Subject: archive, commit: use --abbrev by default again

v1.7.1.1~17^2~3 (pretty: Respect --abbrev option, 2010-05-03) taught
git log --format=%h to respect the --abbrev option instead of
always abbreviating, with the side-effect that we have to pay
attention to the abbrev setting now.

For example, the "git archive" export-subst feature and the
informational line printed by "git commit" are using unabbreviated
object names now, the former because full object names are the
low-level default, the latter because it was first written to imitate
plumbing.

Fix them.  While at it, remove a similar confusing
assignment of 0 to rev.abbrev in "git checkout" which had
no effect.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
diff --git i/archive.c w/archive.c
index d700af3..edd6853 100644
--- i/archive.c
+++ w/archive.c
@@ -33,6 +33,7 @@ static void format_subst(const struct commit *commit,
 	struct strbuf fmt = STRBUF_INIT;
 	struct pretty_print_context ctx = {0};
 	ctx.date_mode = DATE_NORMAL;
+	ctx.abbrev = DEFAULT_ABBREV;
 
 	if (src == buf->buf)
 		to_free = strbuf_detach(buf, NULL);
diff --git i/builtin/checkout.c w/builtin/checkout.c
index 1994be9..eef2b48 100644
--- i/builtin/checkout.c
+++ w/builtin/checkout.c
@@ -279,7 +279,6 @@ static void show_local_changes(struct object *head)
 	struct rev_info rev;
 	/* I think we want full paths, even if we're in a subdirectory. */
 	init_revisions(&rev, NULL);
-	rev.abbrev = 0;
 	rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS;
 	if (diff_setup_done(&rev.diffopt) < 0)
 		die("diff_setup_done failed");
diff --git i/builtin/commit.c w/builtin/commit.c
index a78dbd8..ae4831e 100644
--- i/builtin/commit.c
+++ w/builtin/commit.c
@@ -1163,7 +1163,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1)
 	init_revisions(&rev, prefix);
 	setup_revisions(0, NULL, &rev, NULL);
 
-	rev.abbrev = 0;
+	rev.abbrev = DEFAULT_ABBREV;
 	rev.diff = 1;
 	rev.diffopt.output_format =
 		DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY;
--