Re: [PATCH] git-svn: Support for git-svn propset

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On 12/6/14, 9:42 PM, Eric Wong wrote:
Alfred Perlstein <alfred@xxxxxxxxxxx> wrote:
This change allows git-svn to support setting subversion properties.

Very useful for manually setting properties when committing to a
subversion repo that *requires* properties to be set without requiring
moving your changeset to separate subversion checkout in order to
set props.

This change is initially from David Fraser <davidf () sjsoft ! com>
No point to obfuscate email addresses in commit messages (especially
it's also in the Signed-off-by :).

Appearing here:
   http://marc.info/?l=git&m=125259772625008&w=2

They are now forward ported to most recent git along with fixes to
deal with files in subdirectories.

Style and functional changes from Eric Wong have been taken
in thier entirety from:
s/thier/their/

   http://marc.info/?l=git&m=141742735608544&w=2
Fwiw, I prefer equivalent mid.gmane.org links since the message-ID
remains useful if the web server ever goes away. e.g.:

   http://mid.gmane.org/20141201094911.GA13931@xxxxxxxxxxxxx

Reviewed-by: Eric Wong <normalperson@xxxxxxxx>
Signed-off-by: Alfred Perlstein <alfred@xxxxxxxxxxx>
Signed-off-by: David Fraser <davidf@xxxxxxxxxx>
I'd like to squash in the following changes (in order of importance):

- use && to chain commands throughout tests
- use svn_cmd wrapper throughout tests
- show $! in die messages
- favor $(...) over `...` in tests
- make new_props an array simplify building the final list
- wrap long comments (help output still needs fixing)
- remove unnecessary FIXME comment

No need to resend if you're OK with these things.  Thanks again.
Hmm, I refactored tests because it bothered me that I had done all that cut and pasting, in doing so I found and fixed a bug with uninitialized variables in the check_attr() function.

Let me send my final diff, I will try to properly incorporate your changes as well in that diff.

-Alfred



diff --git a/git-svn.perl b/git-svn.perl
index 5cdbf39..ec5cee4 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -1392,9 +1392,9 @@ sub cmd_propset {
  	my $file = basename($path);
  	my $dn = dirname($path);
  	my $cur_props = Git::SVN::Editor::check_attr( "svn-properties", $path );
-	my $new_props = "";
+	my @new_props;
  	if ($cur_props eq "unset" || $cur_props eq "" || $cur_props eq "set") {
-		$new_props = "$propname=$propval";
+		push @new_props, "$propname=$propval";
  	} else {
  		# TODO: handle combining properties better
  		my @props = split(/;/, $cur_props);
@@ -1403,24 +1403,24 @@ sub cmd_propset {
  			# Parse 'name=value' syntax and set the property.
  			if ($prop =~ /([^=]+)=(.*)/) {
  				my ($n,$v) = ($1,$2);
-				if ($n eq $propname)
-				{
+				if ($n eq $propname) {
  					$v = $propval;
  					$replaced_prop = 1;
  				}
-				if ($new_props eq "") { $new_props="$n=$v"; }
-				else { $new_props="$new_props;$n=$v"; }
+				push @new_props, "$n=$v";
  			}
  		}
  		if (!$replaced_prop) {
-			$new_props = "$new_props;$propname=$propval";
+			push @new_props, "$propname=$propval";
  		}
  	}
  	my $attrfile = "$dn/.gitattributes";
  	open my $attrfh, '>>', $attrfile or die "Can't open $attrfile: $!\n";
  	# TODO: don't simply append here if $file already has svn-properties
-	print $attrfh "$file svn-properties=$new_props\n" or die "write to $attrfile";
-	close $attrfh or die "close $attrfile";
+	my $new_props = join(';', @new_props);
+	print $attrfh "$file svn-properties=$new_props\n" or
+		die "write to $attrfile: $!\n";
+	close $attrfh or die "close $attrfile: $!\n";
  }
# cmd_proplist (PATH)
diff --git a/perl/Git/SVN/Editor.pm b/perl/Git/SVN/Editor.pm
index dd15318..8bed2d9 100644
--- a/perl/Git/SVN/Editor.pm
+++ b/perl/Git/SVN/Editor.pm
@@ -288,8 +288,7 @@ sub apply_autoprops {
  	}
  }
-sub check_attr
-{
+sub check_attr {
  	my ($attr,$path) = @_;
  	my $fh = command_output_pipe("check-attr", $attr, "--", $path);
  	return undef if (!$fh);
@@ -306,10 +305,12 @@ sub apply_manualprops {
  	if ($pending_properties eq "") { return; }
  	# Parse the list of properties to set.
  	my @props = split(/;/, $pending_properties);
-	# TODO: get existing properties to compare to - this fails for add so currently not done
+	# TODO: get existing properties to compare to
+	# - this fails for add so currently not done
  	# my $existing_props = ::get_svnprops($file);
  	my $existing_props = {};
-	# TODO: caching svn properties or storing them in .gitattributes would make that faster
+	# TODO: caching svn properties or storing them in .gitattributes
+	# would make that faster
  	foreach my $prop (@props) {
  		# Parse 'name=value' syntax and set the property.
  		if ($prop =~ /([^=]+)=(.*)/) {
@@ -317,8 +318,6 @@ sub apply_manualprops {
  			for ($n, $v) {
  				s/^\s+//; s/\s+$//;
  			}
-			# FIXME: clearly I don't know perl and couldn't work
-			# out how to evaluate this better
  			my $existing = $existing_props->{$n};
  			if (!defined($existing) || $existing ne $v) {
  			    $self->change_file_prop($fbat, $n, $v);
diff --git a/t/t9148-git-svn-propset.sh b/t/t9148-git-svn-propset.sh
index b36a8a2..6973e8d 100755
--- a/t/t9148-git-svn-propset.sh
+++ b/t/t9148-git-svn-propset.sh
@@ -9,16 +9,14 @@ test_description='git svn propset tests'
foo_subdir2="subdir/subdir2/foo_subdir2" -mkdir import
-(cd import
-	mkdir subdir
-	mkdir subdir/subdir2
-	touch foo		# for 'add props top level'
-	touch subdir/foo_subdir # for 'add props relative'
-	touch "$foo_subdir2"	# for 'add props subdir'
+(mkdir import && cd import &&
+	mkdir subdir &&
+	mkdir subdir/subdir2 &&
+	touch foo && : "for 'add props top level'" &&
+	touch subdir/foo_subdir && : "for 'add props relative'" &&
+	touch "$foo_subdir2" && : "for 'add props subdir'" &&
  	svn_cmd import -m 'import for git svn' . "$svnrepo" >/dev/null
-)
-rm -rf import
+) && rm -rf import
test_expect_success 'initialize git svn' 'git svn init "$svnrepo"'
  test_expect_success 'fetch revisions from svn' 'git svn fetch'
@@ -30,9 +28,10 @@ test_expect_success 'add props top level' '
  	git svn propset svn:keywords "FreeBSD=%H" foo &&
  	echo hello >> foo &&
  	git commit -m "testing propset" foo &&
-	git svn dcommit
+	git svn dcommit &&
  	svn_cmd co "$svnrepo" svn_project &&
-	(cd svn_project && test "`svn propget svn:keywords foo`" = "FreeBSD=%H") &&
+	(cd svn_project &&
+	 test "$(svn_cmd propget svn:keywords foo)" = "FreeBSD=%H") &&
  	rm -rf svn_project
  	'
@@ -41,11 +40,12 @@ test_expect_success 'add multiple props' '
  	git svn propset fbsd:nokeywords yes foo &&
  	echo hello >> foo &&
  	git commit -m "testing propset" foo &&
-	git svn dcommit
+	git svn dcommit &&
  	svn_cmd co "$svnrepo" svn_project &&
-	(cd svn_project && test "`svn propget svn:keywords foo`" = "FreeBSD=%H") &&
-	(cd svn_project && test "`svn propget fbsd:nokeywords foo`" = "yes") &&
-	(cd svn_project && test "`svn proplist -q foo | wc -l`" -eq 2) &&
+	(cd svn_project &&
+		test "$(svn_cmd propget svn:keywords foo)" = "FreeBSD=%H" &&
+		test "$(svn_cmd propget fbsd:nokeywords foo)" = "yes" &&
+		test "$(svn_cmd proplist -q foo | wc -l)" -eq 2) &&
  	rm -rf svn_project
  	'
@@ -53,19 +53,24 @@ test_expect_success 'add props subdir' '
  	git svn propset svn:keywords "FreeBSD=%H" "$foo_subdir2" &&
  	echo hello >> "$foo_subdir2" &&
  	git commit -m "testing propset" "$foo_subdir2" &&
-	git svn dcommit
+	git svn dcommit &&
  	svn_cmd co "$svnrepo" svn_project &&
-	(cd svn_project && test "`svn propget svn:keywords "$foo_subdir2"`" = "FreeBSD=%H") &&
+	(cd svn_project &&
+	 test "$(svn_cmd propget svn:keywords "$foo_subdir2")" = "FreeBSD=%H"
+	) &&
  	rm -rf svn_project
  	'
test_expect_success 'add props relative' '
-	(cd subdir/subdir2 && git svn propset svn:keywords "FreeBSD=%H" ../foo_subdir ) &&
+	(cd subdir/subdir2 &&
+	 git svn propset svn:keywords "FreeBSD=%H" ../foo_subdir ) &&
  	echo hello >> subdir/foo_subdir &&
  	git commit -m "testing propset" subdir/foo_subdir &&
-	git svn dcommit
+	git svn dcommit &&
  	svn_cmd co "$svnrepo" svn_project &&
-	(cd svn_project && test "`svn propget svn:keywords subdir/foo_subdir`" = "FreeBSD=%H") &&
+	(cd svn_project &&
+	 test "$(svn_cmd propget svn:keywords subdir/foo_subdir)" = "FreeBSD=%H"
+	) &&
  	rm -rf svn_project
  	'
  test_done


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