git-svn: teach dcommit about svn auto-props

Subversion repositories often require files to have properties such as
svn:mime-type and svn:eol-style set when they are added.  Users
typically set these properties automatically using the SVN auto-props
feature with 'svn add'.  This commit teaches dcommit to look at the user
SVN configuration and apply matching auto-props entries for files added
by a diff as it is applied to the SVN remote.

Signed-off-by: Brad King <brad.king@kitware.com>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-svn.perl

@@ -3340,6 +3340,7 @@ sub new {
 	$self->{rm} = { };
 	$self->{path_prefix} = length $self->{svn_path} ?
 	                       "$self->{svn_path}/" : '';
+	$self->{config} = $opts->{config};
 	return $self;
 }
 
@@ -3528,6 +3529,57 @@ sub ensure_path {
 	return $bat->{$c};
 }
 
+# Subroutine to convert a globbing pattern to a regular expression.
+# From perl cookbook.
+sub glob2pat {
+	my $globstr = shift;
+	my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
+	$globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
+	return '^' . $globstr . '$';
+}
+
+sub check_autoprop {
+	my ($self, $pattern, $properties, $file, $fbat) = @_;
+	# Convert the globbing pattern to a regular expression.
+	my $regex = glob2pat($pattern);
+	# Check if the pattern matches the file name.
+	if($file =~ m/($regex)/) {
+		# Parse the list of properties to set.
+		my @props = split(/;/, $properties);
+		foreach my $prop (@props) {
+			# Parse 'name=value' syntax and set the property.
+			if ($prop =~ /([^=]+)=(.*)/) {
+				my ($n,$v) = ($1,$2);
+				for ($n, $v) {
+					s/^\s+//; s/\s+$//;
+				}
+				$self->change_file_prop($fbat, $n, $v);
+			}
+		}
+	}
+}
+
+sub apply_autoprops {
+	my ($self, $file, $fbat) = @_;
+	my $conf_t = ${$self->{config}}{'config'};
+	no warnings 'once';
+	# Check [miscellany]/enable-auto-props in svn configuration.
+	if (SVN::_Core::svn_config_get_bool(
+		$conf_t,
+		$SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
+		$SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
+		0)) {
+		# Auto-props are enabled.  Enumerate them to look for matches.
+		my $callback = sub {
+			$self->check_autoprop($_[0], $_[1], $file, $fbat);
+		};
+		SVN::_Core::svn_config_enumerate(
+			$conf_t,
+			$SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
+			$callback);
+	}
+}
+
 sub A {
 	my ($self, $m) = @_;
 	my ($dir, $file) = split_path($m->{file_b});
@@ -3535,6 +3587,7 @@ sub A {
 	my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
 					undef, -1);
 	print "\tA\t$m->{file_b}\n" unless $::_q;
+	$self->apply_autoprops($file, $fbat);
 	$self->chg_file($fbat, $m);
 	$self->close_file($fbat,undef,$self->{pool});
 }

t/t9124-git-svn-dcommit-auto-props.sh

@@ -0,0 +1,86 @@
+#!/bin/sh
+#
+# Copyright (c) 2008 Brad King
+
+test_description='git-svn dcommit honors auto-props'
+
+. ./lib-git-svn.sh
+
+generate_auto_props() {
+cat << EOF
+[miscellany]
+enable-auto-props=$1
+[auto-props]
+*.sh  = svn:mime-type=application/x-shellscript; svn:eol-style=LF
+*.txt = svn:mime-type=text/plain; svn:eol-style = native
+EOF
+}
+
+test_expect_success 'initialize git-svn' '
+	mkdir import &&
+	(
+		cd import &&
+		echo foo >foo &&
+		svn import -m "import for git-svn" . "$svnrepo"
+	) &&
+	rm -rf import &&
+	git-svn init "$svnrepo"
+	git-svn fetch
+'
+
+test_expect_success 'enable auto-props config' '
+	cd "$gittestrepo" &&
+	mkdir user &&
+	generate_auto_props yes >user/config
+'
+
+test_expect_success 'add files matching auto-props' '
+	cd "$gittestrepo" &&
+	echo "#!$SHELL_PATH" >exec1.sh &&
+	chmod +x exec1.sh &&
+	echo "hello" >hello.txt &&
+	echo bar >bar &&
+	git add exec1.sh hello.txt bar &&
+	git commit -m "files for enabled auto-props" &&
+	git svn dcommit --config-dir=user
+'
+
+test_expect_success 'disable auto-props config' '
+	cd "$gittestrepo" &&
+	generate_auto_props no >user/config
+'
+
+test_expect_success 'add files matching disabled auto-props' '
+	cd "$gittestrepo" &&
+	echo "#$SHELL_PATH" >exec2.sh &&
+	chmod +x exec2.sh &&
+	echo "world" >world.txt &&
+	echo zot >zot &&
+	git add exec2.sh world.txt zot &&
+	git commit -m "files for disabled auto-props" &&
+	git svn dcommit --config-dir=user
+'
+
+test_expect_success 'check resulting svn repository' '
+	mkdir work &&
+	cd work &&
+	svn co "$svnrepo" &&
+	cd svnrepo &&
+
+	# Check properties from first commit.
+	test "x$(svn propget svn:executable exec1.sh)" = "x*" &&
+	test "x$(svn propget svn:mime-type exec1.sh)" = \
+	     "xapplication/x-shellscript" &&
+	test "x$(svn propget svn:mime-type hello.txt)" = "xtext/plain" &&
+	test "x$(svn propget svn:eol-style hello.txt)" = "xnative" &&
+	test "x$(svn propget svn:mime-type bar)" = "x" &&
+
+	# Check properties from second commit.
+	test "x$(svn propget svn:executable exec2.sh)" = "x*" &&
+	test "x$(svn propget svn:mime-type exec2.sh)" = "x" &&
+	test "x$(svn propget svn:mime-type world.txt)" = "x" &&
+	test "x$(svn propget svn:eol-style world.txt)" = "x" &&
+	test "x$(svn propget svn:mime-type zot)" = "x"
+'
+
+test_done