[PATCH v3 0/2] Fix interactive rebase when the editor saves with CR/LF

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Chad Boles reported that `git rebase -i` recently started producing
errors when the editor saves files with DOS line endings. The symptom
is:

	Warning: the command isn't recognized in the following line:
	 -

	You can fix this with 'git rebase --edit-todo'.
	Or you can abort the rebase with 'git rebase --abort'.

The real bummer is that simply calling `git rebase --continue` "fixes"
it.

Turns out that we now check whether a single Carriage Return is a valid
command. This new check was introduced recently (1db168ee9, ironically
named "rebase-i: loosen over-eager check_bad_cmd check").

The proposed fix is to teach *all* shell scripts in Git to accept CR as
a field separator. Since LF is already specified as such, it should be
an uncontentious change.


Johannes Schindelin (1):
  Demonstrate rebase fails when the editor saves with CR/LF

Junio C Hamano (1):
  rebase-i: work around Windows CRLF line endings

 git-rebase--interactive.sh    | 13 +++++++++++++
 t/t3404-rebase-interactive.sh | 12 ++++++++++++
 2 files changed, 25 insertions(+)

Interdiff vs v2:

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/git-sh-setup.sh b/git-sh-setup.sh
index e34673d..4691fbc 100644
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -11,9 +11,9 @@ unset CDPATH
 
 # Similarly for IFS, but some shells (e.g. FreeBSD 7.2) are buggy and
 # do not equate an unset IFS with IFS with the default, so here is
-# an explicit SP HT LF CR.
+# an explicit SP HT LF.
 IFS=' 	
-'"$(printf '\r')"
+'
 
 git_broken_path_fix () {
 	case ":$PATH:" in

-- 
2.1.4

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