[[PATCH v3] 0/2] module_list enhancements

Reworded commit message for
[submodule] handle multibyte characters in name
as suggested by Junio.

Previous iteration can be found here:
http://thread.gmane.org/gmane.comp.version-control.git/227786/

Fredrik Gustafsson (2):
  [submodule] handle multibyte characters in name
  [submodule] Replace perl-code with sh

 git-submodule.sh           | 53 ++++++++++++++++++++--------------------------
 t/t7400-submodule-basic.sh | 12 +++++++++++
 2 files changed, 35 insertions(+), 30 deletions(-)

-- 
1.8.3.1.381.g2ab719e.dirty

Many "git submodule" operations do not work on a submodule at a path whose
name is not in ASCII.

This is because "git ls-files" is used to find which paths are bound to
submodules to the current working tree, and the output is C-quoted by default
for non ASCII pathnames and pathnames that has a double-quote, a
backslash or a control character like a newline or a tab in thme.

Tell "git ls-files" to not C-quote its output, which is easier than unwrapping
C-quote ourselves.

This patch still does not allow pathnames with characters that do need C-quote,
but the code didn't handle them before, so it is not making things worse. The
correct approach to solve the problem for all pathnames may be to use
"ls-files -z" and tell the Perl script that reads its output to read NUL
separated records by using $/ = "\0".

Solution-suggested-by: Junio C Hamano [off-list ref]
Signed-off-by: Fredrik Gustafsson <redacted>
---
 git-submodule.sh           |  2 +-
 t/t7400-submodule-basic.sh | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/git-submodule.sh b/git-submodule.sh
index 79bfaac..bad051e 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh

@@ -113,7 +113,7 @@ resolve_relative_url ()
 module_list()
 {
 	(
-		git ls-files --error-unmatch --stage -- "$@" ||
+		git -c core.quotepath=false ls-files --error-unmatch --stage -- "$@" ||
 		echo "unmatched pathspec exists"
 	) |
 	perl -e '

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index ff26535..d5743ee 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh

@@ -868,4 +868,16 @@ test_expect_success 'submodule deinit fails when submodule has a .git directory
 	test -n "$(git config --get-regexp "submodule\.example\.")"
 '
 
+test_expect_success 'submodule with strange name works "å äö"' '
+	mkdir "å äö" &&
+	(
+		cd "å äö" &&
+		git init &&
+		touch sub
+		git add sub
+		git commit -m "init sub"
+	)
+	git submodule add "/å äö" &&
+	test -n "$(git submodule | grep "å äö")"
+'
 test_done

-- 
1.8.3.1.381.g2ab719e.dirty

This will prevent a fork and makes the code similair to the rest of the
file.

In the long term git-submodule.sh needs to use something else than sh to
handle newline in filenames (and therefore needs to use a language that
accepts \0 in strings). However I don't think that keeping that small
perl-part will ease any rewrite.

Signed-off-by: Fredrik Gustafsson <redacted>
---
 git-submodule.sh | 51 ++++++++++++++++++++++-----------------------------
 1 file changed, 22 insertions(+), 29 deletions(-)

diff --git a/git-submodule.sh b/git-submodule.sh
index bad051e..be96934 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh

@@ -112,38 +112,31 @@ resolve_relative_url ()
 #
 module_list()
 {
+	null_sha1=0000000000000000000000000000000000000000
+	unmerged=
 	(
 		git -c core.quotepath=false ls-files --error-unmatch --stage -- "$@" ||
-		echo "unmatched pathspec exists"
+		echo "#unmatched"
 	) |
-	perl -e '
-	my %unmerged = ();
-	my ($null_sha1) = ("0" x 40);
-	my @out = ();
-	my $unmatched = 0;
-	while (<STDIN>) {
-		if (/^unmatched pathspec/) {
-			$unmatched = 1;
-			next;
-		}
-		chomp;
-		my ($mode, $sha1, $stage, $path) =
-			/^([0-7]+) ([0-9a-f]{40}) ([0-3])\t(.*)$/;
-		next unless $mode eq "160000";
-		if ($stage ne "0") {
-			if (!$unmerged{$path}++) {
-				push @out, "$mode $null_sha1 U\t$path\n";
-			}
-			next;
-		}
-		push @out, "$_\n";
-	}
-	if ($unmatched) {
-		print "#unmatched\n";
-	} else {
-		print for (@out);
-	}
-	'
+	while read mode sha1 stage path
+	do
+		if test $mode = "#unmatched"
+		then
+			echo "#unmatched"
+		elif test $mode = "160000"
+		then
+			if test $stage != "0"
+			then
+				if test "$unmerged" != "$path"
+				then
+					echo "$mode $null_sha1 U $path"
+				fi
+				unmerged="$path"
+			else
+				echo "$mode $sha1 $stage $path"
+			fi
+		fi
+	done
 }
 
 die_if_unmatched ()

-- 
1.8.3.1.381.g2ab719e.dirty