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Re: [PATCH 10/22] mailmap tests: get rid of overly complex blame fuzzing

From
Junio C Hamano <gitster@pobox.com>
Date
Jan 14, 2021, 20:21 UTC
Message-ID
<xmqqbldrxo9o.fsf@gitster.c.googlers.com>
In-Reply-To
<xmqqlfcx239z.fsf@gitster.c.googlers.com>
Junio C Hamano <gitster@pobox.com> writes:
Show 23 quoted lines
> Ævar Arnfjörð Bjarmason  <avarab@gmail.com> writes:
>
>> +	6 6 1
>> +	Santa Claus
>> +	7 7 1
>> +	CTO
>> +	EOF
>> +
>> +	git blame --porcelain one >actual.blame &&
>> +	grep -E \
>> +		-e "[0-9]+ [0-9]+ [0-9]+$" \
>> +		-e "^author .*$" \
>> +		actual.blame >actual.grep &&
>> +	cut -d " " -f2-4 <actual.grep >actual.fuzz &&
>
> An approach along the lines of ...
>
> 	NUM="[0-9][0-9]*"
> 	sed -n -e "s/^author //p" \
> 	-e "s/^$OID_REGEX \($NUM $NUM $NUM\)$/\1/p"
>
> ... would allow you to drop "cut" and also not assume that names do
> not have more than 3 tokens.

Trying to lead by example..., here is the suggestion in a follow-up patch form that can be applied on top of the series.

----- >8 ----- ----- >8 ----- ----- >8 ----- ----- >8 ----- ----- >8 -----
Subject: [PATCH] t4203: make blame output massaging more robust

In the "git blame --porcelain" output, lines that ends with three integers may not be the line that shows a commit object with line numbers and block length (the contents from the blamed file or the summary field can have a line that happens to match). Also, the names of the author may have more than three SP separated tokens ("git blame -L242,+1 cf6de18aabf7 Documentation/SubmittingPatches" gives an example). The existing "grep -E | cut" pipeline is a bit too loose on these two points.

While they can be assumed on the test data, it is not so hard to use the right pattern from the documented format, so let's do so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 t/t4203-mailmap.sh | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git c/t/t4203-mailmap.sh i/t/t4203-mailmap.sh
index 89cb300f28..d4a6e73736 100755
--- c/t/t4203-mailmap.sh
+++ i/t/t4203-mailmap.sh
@@ -739,11 +739,11 @@ test_expect_success 'Blame --porcelain output (complex mapping)' '
 	EOF
 
 	git blame --porcelain one >actual.blame &&
-	grep -E \
-		-e "[0-9]+ [0-9]+ [0-9]+$" \
-		-e "^author .*$" \
-		actual.blame >actual.grep &&
-	cut -d " " -f2-4 <actual.grep >actual.fuzz &&
+
+	NUM="[0-9][0-9]*" &&
+	sed -n <actual.blame >actual.fuzz \
+		-e "s/^author //p" \
+		-e "s/^$OID_REGEX \\($NUM $NUM $NUM\\)$/\\1/p"  &&
 	test_cmp expect actual.fuzz
 '
 
Previous: Junio C HamanoNext: Ævar Arnfjörð Bjarmason
Message 22 of 50 in “git-shortlog: make common repository prefix configurable with .mailmap”
  1. 2/2 git-shortlog: make common repository prefix configurable with .mailmapJunio C Hamano, Nov 25, 2006
  2. shortlog: remove unused(?) "repo-abbrev" featureÆvar Arnfjörð Bjarmason, Jan 5, 2021
  3. Linus TorvaldsJan 5, 2021
  4. Martin ÅgrenJan 5, 2021
  5. Junio C HamanoJan 5, 2021
  6. 20/22 mailmap tests: add tests for empty "<>" syntaxÆvar Arnfjörð Bjarmason, Jan 12, 2021
  7. 19/22 mailmap tests: add tests for whitespace syntaxÆvar Arnfjörð Bjarmason, Jan 12, 2021
  8. 21/22 mailmap doc + tests: document and test for case-insensitivityÆvar Arnfjörð Bjarmason, Jan 12, 2021
  9. 22/22 shortlog: remove unused(?) "repo-abbrev" featureÆvar Arnfjörð Bjarmason, Jan 12, 2021
  10. 16/22 tests: refactor a few tests to use "test_commit --append"Ævar Arnfjörð Bjarmason, Jan 12, 2021
  11. 15/22 test-lib functions: add an --append option to test_commitÆvar Arnfjörð Bjarmason, Jan 12, 2021
  12. 09/22 mailmap tests: add a test for "not a blob" errorÆvar Arnfjörð Bjarmason, Jan 12, 2021
  13. Junio C HamanoJan 12, 2021
  14. 12/22 test-lib functions: expand "test_commit" comment templateÆvar Arnfjörð Bjarmason, Jan 12, 2021
  15. 11/22 mailmap: test for silent exiting on missing file/blobÆvar Arnfjörð Bjarmason, Jan 12, 2021
  16. 14/22 test-lib functions: add --author support to test_commitÆvar Arnfjörð Bjarmason, Jan 12, 2021
  17. Junio C HamanoJan 12, 2021
  18. Denton LiuJan 14, 2021
  19. 13/22 test-lib functions: document arguments to test_commitÆvar Arnfjörð Bjarmason, Jan 12, 2021
  20. 10/22 mailmap tests: get rid of overly complex blame fuzzingÆvar Arnfjörð Bjarmason, Jan 12, 2021
  21. Junio C HamanoJan 12, 2021
  22. Junio C HamanoJan 14, 2021
  23. 08/22 mailmap tests: remove redundant entry in testÆvar Arnfjörð Bjarmason, Jan 12, 2021
  24. 07/22 mailmap tests: improve --stdin testsÆvar Arnfjörð Bjarmason, Jan 12, 2021
  25. 17/22 mailmap doc + tests: add better examples & test themÆvar Arnfjörð Bjarmason, Jan 12, 2021
  26. 18/22 mailmap tests: add a test for comment syntaxÆvar Arnfjörð Bjarmason, Jan 12, 2021
  27. 06/22 mailmap tests: modernize syntax & test idiomsÆvar Arnfjörð Bjarmason, Jan 12, 2021
  28. Denton LiuJan 14, 2021
  29. Junio C HamanoJan 14, 2021
  30. 05/22 mailmap tests: use our preferred whitespace syntaxÆvar Arnfjörð Bjarmason, Jan 12, 2021
  31. 04/22 mailmap doc: start by mentioning the comment syntaxÆvar Arnfjörð Bjarmason, Jan 12, 2021
  32. 03/22 check-mailmap doc: note config optionsÆvar Arnfjörð Bjarmason, Jan 12, 2021
  33. 01/22 mailmap doc: create a new "gitmailmap(5)" man pageÆvar Arnfjörð Bjarmason, Jan 12, 2021
  34. Philippe BlainJan 14, 2021
  35. Junio C HamanoJan 14, 2021
  36. Philippe BlainJan 15, 2021
  37. Junio C HamanoJan 15, 2021
  38. Philippe BlainJan 15, 2021
  39. Junio C HamanoJan 15, 2021
  40. fixup! mailmap doc: create a new "gitmailmap(5)" man pagePhilippe Blain, Jan 15, 2021
  41. mailmap doc: use correct environment variable 'GIT_WORK_TREE'Philippe Blain, Jan 15, 2021
  42. 00/22 mailmap: doc + test fixesÆvar Arnfjörð Bjarmason, Jan 12, 2021
  43. Junio C HamanoJan 12, 2021
  44. Ævar Arnfjörð BjarmasonJan 14, 2021
  45. 0/2 mailmap: test cleanupDenton Liu, Jan 14, 2021
  46. 1/2 test-lib-functions.sh: fix usage for test_commit()Denton Liu, Jan 14, 2021
  47. Ævar Arnfjörð BjarmasonJan 15, 2021
  48. 2/2 t4203: stop losing return codes of git commandsDenton Liu, Jan 14, 2021
  49. Ævar Arnfjörð BjarmasonJan 15, 2021
  50. 02/22 mailmap doc: quote config variables `like.this`Ævar Arnfjörð Bjarmason, Jan 12, 2021

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