git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH v3 2/2] rebase-i: work around Windows CRLF line endings

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Oct 27, 2015, 09:47 UTC
Message-ID
<adcab7dcf9d802b3703b9ec9291132259a092a04.1445939154.git.johannes.schindelin@gmx.de>
In-Reply-To
<cover.1445939154.git.johannes.schindelin@gmx.de>
From: Junio C Hamano <gitster@pobox.com>

Editors on Windows can and do save text files with CRLF line endings, which is the convention on the platform. We are seeing reports that the "read" command in a port of bash to the environment however does not strip the CRLF at the end, not adjusting for the same convention on the platform.

This breaks the recently added sanity checks for the insn sheet fed to "rebase -i"; instead of an empty line (hence nothing in $command), the script was getting a lone CR in there.

Special case a lone CR and treat it the same way as an empty line to work this around.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 git-rebase--interactive.sh    | 13 +++++++++++++
 t/t3404-rebase-interactive.sh |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index d65c06e..daadf2d 100644
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -77,6 +77,10 @@ amend="$state_dir"/amend
 rewritten_list="$state_dir"/rewritten-list
 rewritten_pending="$state_dir"/rewritten-pending
 
+# Work around a Windows port of shell that does not strip
+# the newline at the end of a line correctly.
+cr=$(printf "\015")
+
 strategy_args=
 if test -n "$do_merge"
 then
@@ -518,6 +522,11 @@ do_next () {
 	"$comment_char"*|''|noop|drop|d)
 		mark_action_done
 		;;
+	"$cr")
+		# Windows port of shell not stripping the newline
+		# at the end of an empty line correctly.
+		mark_action_done
+		;;
 	pick|p)
 		comment_for_reflog pick
 
@@ -896,6 +905,10 @@ check_bad_cmd_and_sha () {
 		"$comment_char"*|''|noop|x|exec)
 			# Doesn't expect a SHA-1
 			;;
+		"$cr")
+			# Windows port of shell not stripping the newline
+			# at the end of an empty line correctly.
+			;;
 		pick|p|drop|d|reword|r|edit|e|squash|s|fixup|f)
 			if ! check_commit_sha "${rest%%[ 	]*}" "$lineno" "$1"
 			then
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 5dfa16a..98eb49a 100755
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -1261,7 +1261,7 @@ test_expect_success 'static check of bad SHA-1' '
 	test E = $(git cat-file commit HEAD | sed -ne \$p)
 '
 
-test_expect_failure 'editor saves as CR/LF' '
+test_expect_success 'editor saves as CR/LF' '
 	git checkout -b with-crlf &&
 	write_script add-crs.sh <<-\EOF &&
 	sed -e "s/\$/Q/" <"$1" | tr Q "\\015" >"$1".new &&
-- 
2.1.4
Previous: Johannes SchindelinNext: Johannes Schindelin
Message 22 of 31 in “Fix interactive rebase when the editor saves with CR/LF”
  1. 0/2 Fix interactive rebase when the editor saves with CR/LFJohannes Schindelin, Oct 25, 2015
  2. 1/2 Demonstrate rebase fails when the editor saves with CR/LFJohannes Schindelin, Oct 25, 2015
  3. 2/2 sh-setup: explicitly mark CR as a field separatorJohannes Schindelin, Oct 25, 2015
  4. Philip OakleyOct 25, 2015
  5. Johannes SchindelinOct 25, 2015
  6. 0/2 Fix interactive rebase when the editor saves with CR/LFJohannes Schindelin, Oct 25, 2015
  7. 1/2 Demonstrate rebase fails when the editor saves with CR/LFJohannes Schindelin, Oct 25, 2015
  8. 2/2 sh-setup: explicitly mark CR as a field separatorJohannes Schindelin, Oct 25, 2015
  9. Matthieu MoyOct 26, 2015
  10. Junio C HamanoOct 26, 2015
  11. Junio C HamanoOct 26, 2015
  12. Johannes SchindelinOct 27, 2015
  13. Johannes SchindelinOct 27, 2015
  14. Junio C HamanoOct 27, 2015
  15. Matthieu MoyOct 27, 2015
  16. Junio C HamanoOct 25, 2015
  17. Johannes SchindelinOct 26, 2015
  18. Junio C HamanoOct 26, 2015
  19. Johannes SchindelinOct 27, 2015
  20. 0/2 Fix interactive rebase when the editor saves with CR/LFJohannes Schindelin, Oct 27, 2015
  21. 1/2 Demonstrate rebase fails when the editor saves with CR/LFJohannes Schindelin, Oct 27, 2015
  22. 2/2 rebase-i: work around Windows CRLF line endingsJohannes Schindelin, Oct 27, 2015
  23. Johannes SchindelinOct 27, 2015
  24. Junio C HamanoOct 27, 2015
  25. Johannes SchindelinOct 28, 2015
  26. 0/2 Fix interactive rebase when the editor saves with CR/LFJohannes Schindelin, Oct 28, 2015
  27. 1/2 Demonstrate rebase fails when the editor saves with CR/LFJohannes Schindelin, Oct 28, 2015
  28. 2/2 rebase-i: work around Windows CRLF line endingsJohannes Schindelin, Oct 28, 2015
  29. Junio C HamanoOct 28, 2015
  30. Johannes SchindelinOct 25, 2015
  31. shell scripting woes, was Re: [PATCH 2/2] sh-setup: explicitly mark CR as a field separatorJohannes Schindelin, Oct 25, 2015

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.