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[PATCH v3 08/27] rebase -i: verify squash messages using commit-msg

From
Fabian Ruch <bafain@gmail.com>
Date
Aug 18, 2014, 21:22 UTC
Message-ID
<2882c5b3f2c385492f6aa8d9f6ed1ec2308ebce3.1408396036.git.bafain@gmail.com>
In-Reply-To
<cover.1408396036.git.bafain@gmail.com>

Using the to-do list command `squash` the user can specify two or more commits and git-rebase creates one commit that introduces all their changes combined. The authorship for the created commit is taken from the first commit specified and the user can edit the log message. There is a variant of `squash` available named `fixup` which also takes the first log message without asking for user input.

While it is reasonable to not verify replayed changes twice or rejecting some other author's changes in her name, it is insufficient to not verify the user input used as log message in the case of `squash`. Specify the git-commit option `--no-pre-commit` instead of `--no-verify` when committing the squash result, but not before, to let the commit-msg hook verify the final squash message. For the same reasons the pre-commit hook is disabled in all replay modes, the commit-msg hook is disabled in `fixup` mode.

Add tests. In addition to the existing test checking that the pre-commit hook is disabled when simply picking a commit, provide a test checking that the commit-msg hook is disabled as well.

Signed-off-by: Fabian Ruch <bafain@gmail.com>
---
 git-rebase--interactive.sh    |  2 +-
 t/t3404-rebase-interactive.sh | 80 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 1 deletion(-)
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index cf62daa..54c4614 100644
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -562,7 +562,7 @@ do_next () {
 			else
 				cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit
 				rm -f "$GIT_DIR"/MERGE_MSG
-				do_with_author output git commit --allow-empty --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e \
+				do_with_author output git commit --allow-empty --amend --no-pre-commit -F "$GIT_DIR"/SQUASH_MSG -e \
 					${gpg_sign_opt:+"$gpg_sign_opt"} ||
 					die_failed_squash $sha1 "$rest"
 			fi
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 7cc6ebf..abb829e 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -664,6 +664,86 @@ test_expect_success 'rebase a commit violating pre-commit' '
 
 '
 
+test_expect_success 'setup failing pre-commit' '
+	HOOKDIR="$(git rev-parse --git-dir)"/hooks &&
+	mkdir -p "$HOOKDIR" &&
+	PRE_COMMIT="$HOOKDIR"/pre-commit &&
+	cat >"$PRE_COMMIT" <<-EOF &&
+	#!/bin/sh
+	echo running failing pre-commit...
+	exit 1
+	EOF
+	chmod +x "$PRE_COMMIT" &&
+	git checkout -b violating-pre-commit master &&
+	test_must_fail test_commit pre-commit-violated-1 &&
+	test_commit --no-verify pre-commit-violated-1 &&
+	test_must_fail test_commit pre-commit-violated-2 &&
+	test_commit --no-verify pre-commit-violated-2 &&
+	test_must_fail test_commit pre-commit-violated-3 &&
+	test_commit --no-verify pre-commit-violated-3
+'
+
+test_expect_success 'squash commits violating pre-commit' '
+	git checkout -b squash-violating-pre-commit violating-pre-commit &&
+	test_when_finished reset_rebase &&
+	set_fake_editor &&
+	env FAKE_LINES="1 squash 2 squash 3" git rebase -i master
+'
+
+test_expect_success 'fixup commits violating pre-commit' '
+	git checkout -b fixup-violating-pre-commit violating-pre-commit &&
+	test_when_finished reset_rebase &&
+	set_fake_editor &&
+	env FAKE_LINES="1 fixup 2 fixup 3" git rebase -i master
+'
+
+test_expect_success 'clean up failing pre-commit' '
+	rm "$PRE_COMMIT"
+'
+
+test_expect_success 'setup failing commit-msg' '
+	HOOKDIR="$(git rev-parse --git-dir)"/hooks &&
+	mkdir -p "$HOOKDIR" &&
+	COMMIT_MSG="$HOOKDIR"/commit-msg &&
+	cat >"$COMMIT_MSG" <<-EOF &&
+	#!/bin/sh
+	echo running failing commit-msg...
+	exit 1
+	EOF
+	chmod +x "$COMMIT_MSG" &&
+	git checkout -b violating-commit-msg master &&
+	test_must_fail test_commit commit-msg-violated-1 &&
+	test_commit --no-verify commit-msg-violated-1 &&
+	test_must_fail test_commit commit-msg-violated-2 &&
+	test_commit --no-verify commit-msg-violated-2 &&
+	test_must_fail test_commit commit-msg-violated-3 &&
+	test_commit --no-verify commit-msg-violated-3
+'
+
+test_expect_success 'rebase a commit violating commit-msg' '
+	git checkout -b rebase-violating-commit-msg violating-commit-msg &&
+	set_fake_editor &&
+	FAKE_LINES="1" git rebase -i master
+'
+
+test_expect_success 'squash commits violating commit-msg' '
+	git checkout -b squash-violating-commit-msg violating-commit-msg &&
+	set_fake_editor &&
+	test_must_fail env FAKE_LINES="1 squash 2 squash 3" git rebase -i master &&
+	git commit --no-verify --amend &&
+	git rebase --continue
+'
+
+test_expect_success 'fixup commits violating commit-msg' '
+	git checkout -b fixup-violating-commit-msg violating-commit-msg &&
+	set_fake_editor &&
+	env FAKE_LINES="1 fixup 2 fixup 3" git rebase -i master
+'
+
+test_expect_success 'clean up failing commit-msg' '
+	rm "$COMMIT_MSG"
+'
+
 test_expect_success 'rebase with a file named HEAD in worktree' '
 
 	rm -fr .git/hooks &&
-- 
2.0.1
Previous: Fabian RuchNext: Fabian Ruch
Message 129 of 148 in “rebase -i: Implement `reword` and `squash` in terms of `do_pick`”
  1. 0/7 rebase -i: Implement `reword` and `squash` in terms of `do_pick`Fabian Ruch, Jun 19, 2014
  2. 00/19 Enable options --signoff, --reset-author for pick, rewordFabian Ruch, Jul 2, 2014
  3. 01/19 rebase -i: Failed reword prints redundant error messageFabian Ruch, Jul 2, 2014
  4. Junio C HamanoJul 8, 2014
  5. Andrew WongJul 10, 2014
  6. Fabian RuchJul 10, 2014
  7. Andrew WongJul 10, 2014
  8. 02/19 rebase -i: reword complains about empty commit despite --keep-emptyFabian Ruch, Jul 2, 2014
  9. Junio C HamanoJul 8, 2014
  10. Fabian RuchJul 9, 2014
  11. 03/19 rebase -i: reword executes pre-commit hook on interim commitFabian Ruch, Jul 2, 2014
  12. Junio C HamanoJul 8, 2014
  13. Fabian RuchJul 13, 2014
  14. 04/19 rebase -i: Teach do_pick the option --editFabian Ruch, Jul 2, 2014
  15. 05/19 rebase -i: Implement reword in terms of do_pickFabian Ruch, Jul 2, 2014
  16. Matthieu MoyAug 4, 2014
  17. Fabian RuchAug 4, 2014
  18. 06/19 rebase -i: Stop on root commits with empty log messagesFabian Ruch, Jul 2, 2014
  19. Junio C HamanoJul 8, 2014
  20. Fabian RuchJul 10, 2014
  21. Junio C HamanoJul 10, 2014
  22. Junio C HamanoJul 10, 2014
  23. 07/19 rebase -i: The replay of root commits is not shown with --verboseFabian Ruch, Jul 2, 2014
  24. Junio C HamanoJul 8, 2014
  25. Fabian RuchJul 11, 2014
  26. Chris WebbJul 15, 2014
  27. 08/19 rebase -i: Root commits are replayed with an unnecessary optionFabian Ruch, Jul 2, 2014
  28. Junio C HamanoJul 8, 2014
  29. Fabian RuchJul 18, 2014
  30. Junio C HamanoJul 18, 2014
  31. Fabian RuchJul 19, 2014
  32. 09/19 rebase -i: Commit only once when rewriting picksFabian Ruch, Jul 2, 2014
  33. 10/19 rebase -i: Do not die in do_pickFabian Ruch, Jul 2, 2014
  34. 11/19 rebase -i: Teach do_pick the option --amendFabian Ruch, Jul 2, 2014
  35. 12/19 rebase -i: Teach do_pick the option --fileFabian Ruch, Jul 2, 2014
  36. 13/19 rebase -i: Prepare for squash in terms of do_pick --amendFabian Ruch, Jul 2, 2014
  37. 14/19 rebase -i: Implement squash in terms of do_pickFabian Ruch, Jul 2, 2014
  38. 15/19 rebase -i: Explicitly distinguish replay commands and exec tasksFabian Ruch, Jul 2, 2014
  39. Junio C HamanoJul 10, 2014
  40. 16/19 rebase -i: Parse to-do list command line optionsFabian Ruch, Jul 2, 2014
  41. 17/19 rebase -i: Teach do_pick the option --reset-authorFabian Ruch, Jul 2, 2014
  42. 18/19 rebase -i: Teach do_pick the option --signoffFabian Ruch, Jul 2, 2014
  43. 19/19 rebase -i: Enable options --signoff, --reset-author for pick, rewordFabian Ruch, Jul 2, 2014
  44. Michael HaggertyJul 3, 2014
  45. Junio C HamanoJul 8, 2014
  46. Fabian RuchJul 9, 2014
  47. Thomas RastJul 18, 2014
  48. 00/19 Enable options --signoff, --reset-author for pick, rewordFabian Ruch, Jul 28, 2014
  49. 01/19 rebase -i: failed reword prints redundant error messageFabian Ruch, Jul 28, 2014
  50. 02/19 rebase -i: allow rewording an empty commit without complaintsFabian Ruch, Jul 28, 2014
  51. 03/19 rebase -i: reword executes pre-commit hook on interim commitFabian Ruch, Jul 28, 2014
  52. Jeff KingAug 1, 2014
  53. Fabian RuchAug 4, 2014
  54. Jeff KingAug 6, 2014
  55. 04/19 rebase -i: teach do_pick the option --editFabian Ruch, Jul 28, 2014
  56. 05/19 rebase -i: implement reword in terms of do_pickFabian Ruch, Jul 28, 2014
  57. 06/19 rebase -i: allow replaying commits with empty log messagesFabian Ruch, Jul 28, 2014
  58. 07/19 rebase -i: log the replay of root commitsFabian Ruch, Jul 28, 2014
  59. Jeff KingAug 2, 2014
  60. Fabian RuchAug 4, 2014
  61. Jeff KingAug 6, 2014
  62. 08/19 rebase -i: root commits are replayed with an unnecessary optionFabian Ruch, Jul 28, 2014
  63. Jeff KingAug 2, 2014
  64. Fabian RuchAug 4, 2014
  65. 09/19 rebase -i: commit only once when rewriting picksFabian Ruch, Jul 28, 2014
  66. Jeff KingAug 2, 2014
  67. Fabian RuchAug 7, 2014
  68. 10/19 rebase -i: do not die in do_pickFabian Ruch, Jul 28, 2014
  69. 11/19 rebase -i: teach do_pick the option --amendFabian Ruch, Jul 28, 2014
  70. 12/19 rebase -i: teach do_pick the option --fileFabian Ruch, Jul 28, 2014
  71. 13/19 rebase -i: prepare for squash in terms of do_pick --amendFabian Ruch, Jul 28, 2014
  72. 14/19 rebase -i: implement squash in terms of do_pickFabian Ruch, Jul 28, 2014
  73. 15/19 rebase -i: explicitly distinguish replay commands and exec tasksFabian Ruch, Jul 28, 2014
  74. 16/19 rebase -i: parse to-do list command line optionsFabian Ruch, Jul 28, 2014
  75. 17/19 rebase -i: teach do_pick the option --reset-authorFabian Ruch, Jul 28, 2014
  76. 18/19 rebase -i: teach do_pick the option --signoffFabian Ruch, Jul 28, 2014
  77. 19/19 rebase -i: enable options --signoff, --reset-author for pick, rewordFabian Ruch, Jul 28, 2014
  78. Jeff KingAug 2, 2014
  79. Fabian RuchAug 4, 2014
  80. 00/23 Enable options --signoff, --reset-author for pick, rewordFabian Ruch, Aug 6, 2014
  81. 01/23 rebase -i: allow replaying commits with empty log messagesFabian Ruch, Aug 6, 2014
  82. 02/23 rebase -i: allow squashing empty commits without complaintsFabian Ruch, Aug 6, 2014
  83. Peter KreftingAug 7, 2014
  84. Eric SunshineAug 7, 2014
  85. Fabian RuchAug 11, 2014
  86. Phil HordAug 13, 2014
  87. 03/23 rebase -i: allow rewording empty commits without complaintsFabian Ruch, Aug 6, 2014
  88. 04/23 rebase -i: hide interactive command messages in verbose modeFabian Ruch, Aug 6, 2014
  89. Thomas RastAug 8, 2014
  90. Fabian RuchAug 11, 2014
  91. Thomas RastAug 11, 2014
  92. 05/23 rebase -i: failed reword prints redundant error messageFabian Ruch, Aug 6, 2014
  93. 06/23 commit: allow disabling pre-commit and commit-msg separatelyFabian Ruch, Aug 6, 2014
  94. 07/23 rebase -i: squash skips commit-msg hookFabian Ruch, Aug 6, 2014
  95. 08/23 rebase -i: reword executes pre-commit hook on interim commitFabian Ruch, Aug 6, 2014
  96. Thomas RastAug 8, 2014
  97. Fabian RuchAug 11, 2014
  98. Thomas RastAug 11, 2014
  99. 09/23 rebase -i: teach do_pick the option --editFabian Ruch, Aug 6, 2014
  100. 10/23 rebase -i: implement reword in terms of do_pickFabian Ruch, Aug 6, 2014
  101. 11/23 rebase -i: log the replay of root commitsFabian Ruch, Aug 6, 2014
  102. 12/23 rebase -i: root commits are replayed with an unnecessary optionFabian Ruch, Aug 6, 2014
  103. 13/23 rebase -i: commit only once when rewriting picksFabian Ruch, Aug 6, 2014
  104. 14/23 rebase -i: do not die in do_pickFabian Ruch, Aug 6, 2014
  105. 15/23 rebase -i: teach do_pick the option --amendFabian Ruch, Aug 6, 2014
  106. 16/23 rebase -i: teach do_pick the option --fileFabian Ruch, Aug 6, 2014
  107. 17/23 rebase -i: prepare for squash in terms of do_pick --amendFabian Ruch, Aug 6, 2014
  108. 18/23 rebase -i: implement squash in terms of do_pickFabian Ruch, Aug 6, 2014
  109. 19/23 rebase -i: explicitly distinguish replay commands and exec tasksFabian Ruch, Aug 6, 2014
  110. 20/23 rebase -i: parse to-do list command line optionsFabian Ruch, Aug 6, 2014
  111. Thomas RastAug 8, 2014
  112. Fabian RuchAug 11, 2014
  113. 21/23 rebase -i: teach do_pick the option --reset-authorFabian Ruch, Aug 6, 2014
  114. 22/23 rebase -i: teach do_pick the option --signoffFabian Ruch, Aug 6, 2014
  115. 23/23 rebase -i: enable options --signoff, --reset-author for pick, rewordFabian Ruch, Aug 6, 2014
  116. Thomas RastAug 8, 2014
  117. Fabian RuchAug 12, 2014
  118. Michael HaggertyAug 13, 2014
  119. Fabian RuchAug 14, 2014
  120. Fabian RuchSep 21, 2014
  121. 00/27 Enable options --signoff, --reset-author for pick, reword, editFabian Ruch, Aug 18, 2014
  122. 01/27 rebase -i: allow replaying commits with empty log messagesFabian Ruch, Aug 18, 2014
  123. 02/27 rebase -i: allow squashing empty commits without complaintsFabian Ruch, Aug 18, 2014
  124. 03/27 rebase -i: allow rewording empty commits without complaintsFabian Ruch, Aug 18, 2014
  125. 04/27 fake_editor: leave standard output unchangedFabian Ruch, Aug 18, 2014
  126. 05/27 rebase -i: hide interactive command messages in verbose modeFabian Ruch, Aug 18, 2014
  127. 06/27 rebase -i: discard redundant message when rewording failsFabian Ruch, Aug 18, 2014
  128. 07/27 commit: allow disabling pre-commit and commit-msg separatelyFabian Ruch, Aug 18, 2014
  129. 08/27 rebase -i: verify squash messages using commit-msgFabian Ruch, Aug 18, 2014
  130. 09/27 rebase -i: do not verify reworded patches using pre-commitFabian Ruch, Aug 18, 2014
  131. 10/27 rebase -i: teach do_pick the option --editFabian Ruch, Aug 18, 2014
  132. 11/27 rebase -i: implement reword in terms of do_pickFabian Ruch, Aug 18, 2014
  133. 12/27 rebase -i: log the replay of root commitsFabian Ruch, Aug 18, 2014
  134. 13/27 rebase -i: do not use -C when --no-edit is sufficientFabian Ruch, Aug 18, 2014
  135. 14/27 rebase -i: commit only once when rewriting picksFabian Ruch, Aug 18, 2014
  136. 15/27 rebase -i: do not die in do_pickFabian Ruch, Aug 18, 2014
  137. 16/27 rebase -i: teach do_pick the option --amendFabian Ruch, Aug 18, 2014
  138. 17/27 rebase -i: teach do_pick the option --fileFabian Ruch, Aug 18, 2014
  139. 18/27 rebase -i: remove no-op do_with_author git commit --amendFabian Ruch, Aug 18, 2014
  140. 19/27 rebase -i: prepare for squash in terms of do_pick --amendFabian Ruch, Aug 18, 2014
  141. 20/27 rebase -i: implement squash in terms of do_pickFabian Ruch, Aug 18, 2014
  142. 21/27 rebase -i: explicitly distinguish replay commands and exec tasksFabian Ruch, Aug 18, 2014
  143. 22/27 rebase -i: parse to-do list command line optionsFabian Ruch, Aug 18, 2014
  144. 23/27 rebase -i: teach do_pick the option --reset-authorFabian Ruch, Aug 18, 2014
  145. 24/27 rebase -i: teach do_pick the option --signoffFabian Ruch, Aug 18, 2014
  146. 25/27 rebase -i: do not overwrite user author informationFabian Ruch, Aug 18, 2014
  147. 26/27 rebase -i: refuse to commit when resuming with updated headFabian Ruch, Aug 18, 2014
  148. 27/27 rebase -i: enable --signoff, --reset-author for pick, reword, editFabian Ruch, Aug 18, 2014

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