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Re: [PATCH] t: add clone test for files differing only in case

From
Eric Sunshine <sunshine@sunshineco.com>
Date
Jan 21, 2018, 08:07 UTC
Message-ID
<20180121080728.GA20770@flurp.local>
In-Reply-To
<CAPig+cTW+vO7FWYViUrO-aV8pPL=KKhGf7Wkgh_51cbrxKZPEQ@mail.gmail.com>
On Sun, Jan 21, 2018 at 02:46:15AM -0500, Eric Sunshine wrote:
Show 18 quoted lines
> On Sun, Jan 21, 2018 at 2:33 AM, Junio C Hamano <gitster@pobox.com> wrote:
> > "brian m. carlson" <sandals@crustytoothpaste.net> writes:
> >> +test_expect_success 'clone on case-insensitive fs' '
> >> +     o=$(git hash-object -w --stdin </dev/null | hex2oct) &&
> >> +     t=$(printf "100644 X\0${o}100644 x\0${o}" |
> >> +             git hash-object -w -t tree --stdin) &&
> >> +     c=$(git commit-tree -m bogus $t) &&
> >> +     git update-ref refs/heads/bogus $c &&
> >> +     git clone -b bogus . bogus
> >> +'
> >
> > Hmm, I seem to be seeing a failure from this thing:
> >     fatal: repository '.' does not exist
> > even on a case sensitive platform.
> 
> Yep. In pretty much any other test script, this would work (it was
> developed in a stand-alone script), but t5601 (which nukes .git as its
> first action) isn't the most friendly place.

Here's a re-roll which fixes that problem (and has a slightly re-written commit message.

--- >8 ---
From: Eric Sunshine <sunshine@sunshineco.com>
Subject: [PATCH] t5601-clone: test case-conflicting files on case-insensitive
 filesystem

A recently introduced regression caused a segfault at clone time on case-insensitive filesystems when filenames differing only in case are present. This bug has already been fixed (repository: pre-initialize hash algo pointer, 2018-01-18), but it's not the first time similar problems have arisen. Therefore, introduce a test to catch this case and protect against future regressions.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
---
 t/t5601-clone.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index 0f895478f0..2d1490f631 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -611,4 +611,21 @@ test_expect_success 'GIT_TRACE_PACKFILE produces a usable pack' '
 	git -C replay.git index-pack -v --stdin <tmp.pack
 '
 
+hex2oct() {
+	perl -ne 'printf "\\%03o", hex for /../g'
+}
+
+test_expect_success 'clone on case-insensitive fs' '
+	git init icasefs &&
+	(
+		cd icasefs
+		o=$(git hash-object -w --stdin </dev/null | hex2oct) &&
+		t=$(printf "100644 X\0${o}100644 x\0${o}" |
+			git hash-object -w -t tree --stdin) &&
+		c=$(git commit-tree -m bogus $t) &&
+		git update-ref refs/heads/bogus $c &&
+		git clone -b bogus . bogus
+	)
+'
+
 test_done
-- 
2.16.0.312.g896df04e46
Previous: Eric SunshineNext: brian m. carlson
Message 30 of 33 in “git 2.16.0 segfaults on clone of specific repo”
  1. Александр БулаевJan 18, 2018
  2. Randall S. BeckerJan 18, 2018
  3. Eric SunshineJan 19, 2018
  4. brian m. carlsonJan 19, 2018
  5. Eric SunshineJan 19, 2018
  6. Randall S. BeckerJan 19, 2018
  7. brian m. carlsonJan 19, 2018
  8. Duy NguyenJan 19, 2018
  9. Eric SunshineJan 19, 2018
  10. Duy NguyenJan 19, 2018
  11. Eric SunshineJan 19, 2018
  12. Todd ZullingerJan 19, 2018
  13. Eric SunshineJan 20, 2018
  14. brian m. carlsonJan 19, 2018
  15. Eric SunshineJan 20, 2018
  16. brian m. carlsonJan 20, 2018
  17. Eric SunshineJan 20, 2018
  18. repository: pre-initialize hash algo pointerbrian m. carlson, Jan 19, 2018
  19. Eric SunshineJan 19, 2018
  20. Junio C HamanoJan 19, 2018
  21. Eric SunshineJan 19, 2018
  22. Junio C HamanoJan 19, 2018
  23. brian m. carlsonJan 19, 2018
  24. Junio C HamanoJan 20, 2018
  25. Eric SunshineJan 20, 2018
  26. t: add clone test for files differing only in casebrian m. carlson, Jan 20, 2018
  27. Eric SunshineJan 21, 2018
  28. Junio C HamanoJan 21, 2018
  29. Eric SunshineJan 21, 2018
  30. Eric SunshineJan 21, 2018
  31. brian m. carlsonJan 21, 2018
  32. Duy NguyenJan 21, 2018
  33. Eric SunshineJan 21, 2018

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