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[PATCH v3 0/4] clean up some code around editors

From
D. Ben Knoble <ben.knoble+github@gmail.com>
Date
Aug 11, 2025, 22:16 UTC
Message-ID
<20250811221706.67168-1-ben.knoble+github@gmail.com>
In-Reply-To
<20250810160323.49372-1-ben.knoble+github@gmail.com>
Changes from v2:
- shuffle setup code and use more helpers in 1/4
- insert 2/4 to stop abusing --exec-path
- improve environment-cleansing idioms in {2 => 3}/4
Thanks especially to Phillip's encyclopaedic knowledge of test helpers ;)
Changes from v1:
- add a prep patch with style fixes to t7005
- rework the environment munging to use subshells, per Phillip Wood's
  suggestion

This reroll of the previous exec-path series is simplified to contain only the first 2 cleanup patches, which were largely acked by the list. Drop the controversial and broken PATH munging.

Also, this version is (still) based on a later master 112648dd6b (Merge branch 'master' of https://github.com/j6t/git-gui, 2025-08-04) than the original from May.

These patches clean up some old code in the editor tests and subsystem that does not use our modern idioms.

v1: https://lore.kernel.org/git/20250520193506.95199-1-ben.knoble+github@gmail.com/
v2: https://lore.kernel.org/git/20250810160323.49372-1-ben.knoble+github@gmail.com/
Published-as: https://github.com/benknoble/tree/editor-cleanup
D. Ben Knoble (4):
  t7005: use modern test style
  t7005: stop abusing --exec-path
  t7005: sanitize test environment for subsequent tests
  editor: use standard strvec API to receive environment for external
    editors
 builtin/commit.c  |   2 +-
 editor.c          |  10 ++--
 editor.h          |   7 ++-
 t/t7005-editor.sh | 147 +++++++++++++++++++---------------------------
 4 files changed, 69 insertions(+), 97 deletions(-)
Diff-intervalle contre v2 :
1:  e7629202a1 ! 1:  8ad2904a18 t7005: use modern test style
    @@ Metadata
      ## Commit message ##
         t7005: use modern test style
     
    -    Tests in t7005 mask Git error codes and do not use our nice helpers for
    -    comparing results. Improve that, and drop a few old-style blank lines
    -    while at it.
    +    Tests in t7005 mask Git error codes and do not use our nice test
    +    helpers. Improve that, move some code into the setup test, and drop a
    +    few old-style blank lines while at it.
     
    +    Best-viewed-with: --ignore-all-space
         Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
     
      ## t/t7005-editor.sh ##
    @@ t/t7005-editor.sh
     -
      '
      
    - if ! expr "$vi" : '[a-z]*$' >/dev/null
    -@@
    - fi
    - 
    - test_expect_success setup '
    +-if ! expr "$vi" : '[a-z]*$' >/dev/null
    +-then
    +-	vi=
    +-fi
     -
    +-for i in GIT_EDITOR core_editor EDITOR VISUAL $vi
    +-do
    +-	cat >e-$i.sh <<-EOF
    +-	#!$SHELL_PATH
    +-	echo "Edited by $i" >"\$1"
    +-	EOF
    +-	chmod +x e-$i.sh
    +-done
    +-
    +-if ! test -z "$vi"
    +-then
    +-	mv e-$vi.sh $vi
    +-fi
    +-
    + test_expect_success setup '
    ++	if ! expr "$vi" : "[a-z]*$" >/dev/null
    ++	then
    ++		vi=
    ++	fi &&
    ++
    ++	for i in GIT_EDITOR core_editor EDITOR VISUAL $vi
    ++	do
    ++		write_script e-$i.sh <<-EOF || return 1
    ++			echo "Edited by $i" >"\$1"
    ++		EOF
    ++	done &&
    ++
    ++	if ! test -z "$vi"
    ++	then
    ++		mv e-$vi.sh $vi
    ++	fi &&
    + 
      	msg="Hand-edited" &&
      	test_commit "$msg" &&
    - 	echo "$msg" >expect &&
    +-	echo "$msg" >expect &&
     -	git show -s --format=%s > actual &&
    -+	git show -s --format=%s >actual &&
    - 	test_cmp expect actual
    +-	test_cmp expect actual
     -
    ++	test_commit_message HEAD -m "$msg"
      '
      
      TERM=dumb
      export TERM
      test_expect_success 'dumb should error out when falling back on vi' '
     -
    - 	if git commit --amend
    - 	then
    - 		echo "Oops?"
    -@@
    +-	if git commit --amend
    +-	then
    +-		echo "Oops?"
    +-		false
    +-	else
    +-		: happy
    +-	fi
    ++	test_must_fail git commit --amend
      '
      
      test_expect_success 'dumb should prefer EDITOR to VISUAL' '
    @@ t/t7005-editor.sh
      	git commit --amend &&
     -	test "$(git show -s --format=%s)" = "Edited by EDITOR"
     -
    -+	echo "Edited by EDITOR" >expect &&
    -+	git show -s --format=%s >actual &&
    -+	test_cmp expect actual
    ++	test_commit_message HEAD -m "Edited by EDITOR"
      '
      
      TERM=vt100
    @@ t/t7005-editor.sh
      		git --exec-path=. commit --amend &&
     -		git show -s --pretty=oneline |
     -		sed -e "s/^[0-9a-f]* //" >actual &&
    -+		git show -s --pretty=oneline >show &&
    -+		<show sed -e "s/^[0-9a-f]* //" >actual &&
    - 		test_cmp expect actual
    +-		test_cmp expect actual
    ++		test_commit_message HEAD expect
      	'
      done
    + 
     @@
      	esac
      	test_expect_success "Using $i (override)" '
      		git --exec-path=. commit --amend &&
     -		git show -s --pretty=oneline |
     -		sed -e "s/^[0-9a-f]* //" >actual &&
    -+		git show -s --pretty=oneline >show &&
    -+		<show sed -e "s/^[0-9a-f]* //" >actual &&
    - 		test_cmp expect actual
    +-		test_cmp expect actual
    ++		test_commit_message HEAD expect
      	'
      done
    + 
     @@
      	echo "echo space >\"\$1\"" >"e space.sh" &&
      	chmod a+x "e space.sh" &&
      	GIT_EDITOR="./e\ space.sh" git commit --amend &&
     -	test space = "$(git show -s --pretty=format:%s)"
     -
    -+	echo space >expect &&
    -+	git show -s --pretty=tformat:%s >actual &&
    -+	test_cmp expect actual
    ++	test_commit_message HEAD -m space
      '
      
      unset GIT_EDITOR
    @@ t/t7005-editor.sh
      	git commit --amend &&
     -	test space = "$(git show -s --pretty=format:%s)"
     -
    -+	echo space >expect &&
    -+	git show -s --pretty=tformat:%s >actual &&
    -+	test_cmp expect actual
    ++	test_commit_message HEAD -m space
      '
      
      test_done
-:  ---------- > 2:  9451e4f0f6 t7005: stop abusing --exec-path
2:  0467e33ed0 ! 3:  61cb116780 t7005: sanitize test environment for subsequent tests
    @@ Commit message
         that affect future tests, but those modifications are visible to future
         tests and create a footgun for them.
     
    -    Use test_config, subshells, and test helpers to automatically undo
    -    environment and config modifications once finished.
    +    Use test_config, subshells, single-command environment overrides, and
    +    test helpers to automatically undo environment and config modifications
    +    once finished.
     
         Best-viewed-with: --ignore-all-space
         Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
     
      ## t/t7005-editor.sh ##
     @@
    - 	test_cmp expect actual
    + 	test_commit_message HEAD -m "$msg"
      '
      
     -TERM=dumb
     -export TERM
      test_expect_success 'dumb should error out when falling back on vi' '
    --	if git commit --amend
    --	then
    --		echo "Oops?"
    --		false
    --	else
    --		: happy
    --	fi
    -+	(
    -+		TERM=dumb &&
    -+		export TERM &&
    -+		if git commit --amend
    -+		then
    -+			echo "Oops?"
    -+			false
    -+		else
    -+			: happy
    -+		fi
    -+	)
    +-	test_must_fail git commit --amend
    ++	TERM=dumb test_must_fail git commit --amend
      '
      
      test_expect_success 'dumb should prefer EDITOR to VISUAL' '
    @@ t/t7005-editor.sh
     -	VISUAL=./e-VISUAL.sh &&
     -	export EDITOR VISUAL &&
     -	git commit --amend &&
    --	echo "Edited by EDITOR" >expect &&
    --	git show -s --format=%s >actual &&
    -+	(
    -+		TERM=dumb &&
    -+		export TERM &&
    -+		EDITOR=./e-EDITOR.sh &&
    -+		VISUAL=./e-VISUAL.sh &&
    -+		export EDITOR VISUAL &&
    ++	TERM=dumb EDITOR=./e-EDITOR.sh VISUAL=./e-VISUAL.sh \
     +		git commit --amend &&
    -+		echo "Edited by EDITOR" >expect &&
    -+		git show -s --format=%s >actual
    -+	) &&
    - 	test_cmp expect actual
    + 	test_commit_message HEAD -m "Edited by EDITOR"
      '
      
     -TERM=vt100
     -export TERM
    --for i in $vi EDITOR VISUAL core_editor GIT_EDITOR
    --do
    + for i in $vi EDITOR VISUAL core_editor GIT_EDITOR
    + do
     -	echo "Edited by $i" >expect
     -	unset EDITOR VISUAL GIT_EDITOR
     -	git config --unset-all core.editor
    @@ t/t7005-editor.sh
     -		export $i
     -		;;
     -	esac
    --	test_expect_success "Using $i" '
    --		git --exec-path=. commit --amend &&
    --		git show -s --pretty=oneline >show &&
    --		<show sed -e "s/^[0-9a-f]* //" >actual &&
    --		test_cmp expect actual
    --	'
    --done
    -+test_expect_success 'Using individual editors' '
    -+	test_when_finished "test_unconfig --unset-all core.editor" &&
    -+	(
    -+		TERM=vt100 &&
    -+		export TERM &&
    -+		for i in $vi EDITOR VISUAL core_editor GIT_EDITOR
    -+		do
    -+			sane_unset EDITOR VISUAL GIT_EDITOR &&
    -+			test_might_fail git config --unset-all core.editor &&
    -+			echo "Edited by $i" >expect &&
    + 	test_expect_success "Using $i" '
    +-		PATH="$PWD:$PATH" git commit --amend &&
    +-		test_commit_message HEAD expect
    ++		if test "$i" = core_editor
    ++		then
    ++			test_config core.editor ./e-core_editor.sh
    ++		fi &&
    ++		(
     +			case "$i" in
    -+			core_editor)
    -+				git config core.editor ./e-core_editor.sh
    -+				;;
     +			[A-Z]*)
     +				eval "$i=./e-$i.sh" &&
     +				export $i
     +				;;
     +			esac &&
    -+			git --exec-path=. commit --amend &&
    -+			git show -s --pretty=oneline >show &&
    -+			<show sed -e "s/^[0-9a-f]* //" >actual &&
    -+			test_cmp expect actual
    -+		done
    -+	)
    -+'
    ++			PATH="$PWD:$PATH" TERM=vt100 git commit --amend
    ++		) &&
    ++		test_commit_message HEAD -m "Edited by $i"
    + 	'
    + done
      
     -unset EDITOR VISUAL GIT_EDITOR
     -git config --unset-all core.editor
    @@ t/t7005-editor.sh
     -		;;
     -	esac
     -	test_expect_success "Using $i (override)" '
    --		git --exec-path=. commit --amend &&
    --		git show -s --pretty=oneline >show &&
    --		<show sed -e "s/^[0-9a-f]* //" >actual &&
    --		test_cmp expect actual
    +-		PATH="$PWD:$PATH" git commit --amend &&
    +-		test_commit_message HEAD expect
     -	'
     -done
     +test_expect_success 'Using editors with overrides' '
    @@ t/t7005-editor.sh
     +				export $i
     +				;;
     +			esac &&
    -+			git --exec-path=. commit --amend &&
    -+			git show -s --pretty=oneline >show &&
    -+			<show sed -e "s/^[0-9a-f]* //" >actual &&
    -+			test_cmp expect actual
    ++			PATH="$PWD:$PATH" git commit --amend &&
    ++			test_commit_message HEAD expect || exit 1
     +		done
     +	)
     +'
    @@ t/t7005-editor.sh
      test_expect_success 'editor with a space' '
      	echo "echo space >\"\$1\"" >"e space.sh" &&
     @@
    - 	test_cmp expect actual
    + 	test_commit_message HEAD -m space
      '
      
     -unset GIT_EDITOR
    @@ t/t7005-editor.sh
     -	git config core.editor \"./e\ space.sh\" &&
     +	test_config core.editor \"./e\ space.sh\" &&
      	git commit --amend &&
    - 	echo space >expect &&
    - 	git show -s --pretty=tformat:%s >actual &&
    + 	test_commit_message HEAD -m space
    + '
3:  4a9bb52470 = 4:  ea269f2442 editor: use standard strvec API to receive environment for external editors
base-commit: 112648dd6bdd8e4f485cd0ae11636807959d48be
-- 
2.48.1
Previous: Ben KnobleNext: Ben Knoble
Message 36 of 73 in “Drop git-exec-path from non-Git child programs”
  1. 0/4 Drop git-exec-path from non-Git child programsD. Ben Knoble, May 20, 2025
  2. 1/4 t7005: sanitize test environment for subsequent testsD. Ben Knoble, May 20, 2025
  3. Patrick SteinhardtMay 21, 2025
  4. D. Ben KnobleMay 21, 2025
  5. 2/4 editor: use standard strvec API to receive environment for external editorsD. Ben Knoble, May 20, 2025
  6. Patrick SteinhardtMay 21, 2025
  7. D. Ben KnobleMay 21, 2025
  8. Patrick SteinhardtMay 21, 2025
  9. Junio C HamanoMay 21, 2025
  10. Junio C HamanoMay 21, 2025
  11. 3/4 run-command: prep_childenv on all platformsD. Ben Knoble, May 20, 2025
  12. Patrick SteinhardtMay 21, 2025
  13. Phillip WoodMay 21, 2025
  14. D. Ben KnobleMay 21, 2025
  15. 4/4 drop git_exec_path() from non-Git commands' PATHD. Ben Knoble, May 20, 2025
  16. Junio C HamanoMay 20, 2025
  17. D. Ben KnobleMay 21, 2025
  18. Patrick SteinhardtMay 21, 2025
  19. Phillip WoodMay 21, 2025
  20. Patrick SteinhardtMay 21, 2025
  21. Phillip WoodMay 21, 2025
  22. Patrick SteinhardtMay 26, 2025
  23. Justin ToblerMay 21, 2025
  24. Patrick SteinhardtMay 26, 2025
  25. D. Ben KnobleMay 21, 2025
  26. Junio C HamanoMay 21, 2025
  27. Phillip WoodMay 22, 2025
  28. D. Ben KnobleAug 5, 2025
  29. 0/2 clean up some code around editorsD. Ben Knoble, Aug 5, 2025
  30. Phillip WoodAug 6, 2025
  31. 1/2 t7005: sanitize test environment for subsequent testsD. Ben Knoble, Aug 5, 2025
  32. 2/2 editor: use standard strvec API to receive environment for external editorsD. Ben Knoble, Aug 5, 2025
  33. 0/3 clean up some code around editorsD. Ben Knoble, Aug 10, 2025
  34. D. Ben KnobleAug 10, 2025
  35. Ben KnobleAug 10, 2025
  36. 0/4 clean up some code around editorsD. Ben Knoble, Aug 11, 2025
  37. Ben KnobleAug 11, 2025
  38. Eric SunshineAug 12, 2025
  39. D. Ben KnobleAug 12, 2025
  40. Junio C HamanoAug 12, 2025
  41. Eric SunshineAug 12, 2025
  42. Junio C HamanoAug 12, 2025
  43. Eric SunshineAug 12, 2025
  44. 0/3 clean up some code around editorsD. Ben Knoble, Aug 12, 2025
  45. Phillip WoodAug 13, 2025
  46. Junio C HamanoAug 13, 2025
  47. D. Ben KnobleAug 13, 2025
  48. 0/3 clean up some code around editorsD. Ben Knoble, Aug 13, 2025
  49. Phillip WoodAug 15, 2025
  50. 1/3 t7005: use modern test styleD. Ben Knoble, Aug 13, 2025
  51. 2/3 t7005: stop abusing --exec-pathD. Ben Knoble, Aug 13, 2025
  52. 3/3 t7005: sanitize test environment for subsequent testsD. Ben Knoble, Aug 13, 2025
  53. 1/3 t7005: use modern test styleD. Ben Knoble, Aug 12, 2025
  54. 2/3 t7005: stop abusing --exec-pathD. Ben Knoble, Aug 12, 2025
  55. 3/3 t7005: sanitize test environment for subsequent testsD. Ben Knoble, Aug 12, 2025
  56. 1/4 t7005: use modern test styleD. Ben Knoble, Aug 11, 2025
  57. 2/4 t7005: stop abusing --exec-pathD. Ben Knoble, Aug 11, 2025
  58. 3/4 t7005: sanitize test environment for subsequent testsD. Ben Knoble, Aug 11, 2025
  59. Eric SunshineAug 11, 2025
  60. D. Ben KnobleAug 12, 2025
  61. Eric SunshineAug 12, 2025
  62. 4/4 editor: use standard strvec API to receive environment for external editorsD. Ben Knoble, Aug 11, 2025
  63. Eric SunshineAug 11, 2025
  64. Junio C HamanoAug 11, 2025
  65. 1/3 t7005: use modern test styleD. Ben Knoble, Aug 10, 2025
  66. Phillip WoodAug 10, 2025
  67. Phillip WoodAug 11, 2025
  68. 2/3 t7005: sanitize test environment for subsequent testsD. Ben Knoble, Aug 10, 2025
  69. Phillip WoodAug 10, 2025
  70. Ben KnobleAug 10, 2025
  71. Eric SunshineAug 10, 2025
  72. Phillip WoodAug 11, 2025
  73. 3/3 editor: use standard strvec API to receive environment for external editorsD. Ben Knoble, Aug 10, 2025

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