From: "Michael G. Schwern" <schw...@pobox.com>

Remove the ad-hoc versions.

This is mostly to normalize the process and ensure the URLs produced
don't have double slashes or anything.

Also provides a place to fix the corner case where a file path
contains a percent sign.
---
 git-svn.perl                      |  3 ++-
 perl/Git/SVN.pm                   | 33 +++++++++++++++------------------
 perl/Git/SVN/Ra.pm                |  8 ++++----
 perl/Git/SVN/Utils.pm             | 27 +++++++++++++++++++++++++++
 t/Git-SVN/Utils/add_path_to_url.t | 27 +++++++++++++++++++++++++++
 5 files changed, 75 insertions(+), 23 deletions(-)
 create mode 100644 t/Git-SVN/Utils/add_path_to_url.t

diff --git a/git-svn.perl b/git-svn.perl
index 6b90765..3d120d5 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -35,6 +35,7 @@ use Git::SVN::Utils qw(
        canonicalize_path
        canonicalize_url
        join_paths
+       add_path_to_url
 );
 
 use Git qw(
@@ -1436,7 +1437,7 @@ sub cmd_info {
        # canonicalize_path() will return "" to make libsvn 1.5.x happy,
        $path = "." if $path eq "";
 
-       my $full_url = canonicalize_url( $url . ($fullpath eq "" ? "" : 
"/$fullpath") );
+       my $full_url = canonicalize_url( add_path_to_url( $url, $fullpath ) );
 
        if ($_url) {
                print "$full_url\n";
diff --git a/perl/Git/SVN.pm b/perl/Git/SVN.pm
index 4219e5b..22bf207 100644
--- a/perl/Git/SVN.pm
+++ b/perl/Git/SVN.pm
@@ -29,6 +29,7 @@ use Git::SVN::Utils qw(
        join_paths
        canonicalize_path
        canonicalize_url
+       add_path_to_url
 );
 
 my $can_use_yaml;
@@ -564,8 +565,7 @@ sub _set_svm_vars {
                # username is of no interest
                $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
 
-               my $replace = $ra->url;
-               $replace .= "/$path" if length $path;
+               my $replace = add_path_to_url($ra->url, $path);
 
                my $section = "svn-remote.$self->{repo_id}";
                tmp_config("$section.svm-source", $src);
@@ -582,7 +582,7 @@ sub _set_svm_vars {
        my $path = $self->path;
        my %tried;
        while (length $path) {
-               my $try = $self->url . "/$path";
+               my $try = add_path_to_url($self->url, $path);
                unless ($tried{$try}) {
                        return $ra if $self->read_svm_props($ra, $path, $r);
                        $tried{$try} = 1;
@@ -591,7 +591,7 @@ sub _set_svm_vars {
        }
        die "Path: '$path' should be ''\n" if $path ne '';
        return $ra if $self->read_svm_props($ra, $path, $r);
-       $tried{$self->url."/$path"} = 1;
+       $tried{ add_path_to_url($self->url, $path) } = 1;
 
        if ($ra->{repos_root} eq $self->url) {
                die @err, (map { "  $_\n" } keys %tried), "\n";
@@ -603,7 +603,7 @@ sub _set_svm_vars {
        $path = $ra->{svn_path};
        $ra = Git::SVN::Ra->new($ra->{repos_root});
        while (length $path) {
-               my $try = $ra->url ."/$path";
+               my $try = add_path_to_url($ra->url, $path);
                unless ($tried{$try}) {
                        $ok = $self->read_svm_props($ra, $path, $r);
                        last if $ok;
@@ -613,7 +613,7 @@ sub _set_svm_vars {
        }
        die "Path: '$path' should be ''\n" if $path ne '';
        $ok ||= $self->read_svm_props($ra, $path, $r);
-       $tried{$ra->url ."/$path"} = 1;
+       $tried{ add_path_to_url($ra->url, $path) } = 1;
        if (!$ok) {
                die @err, (map { "  $_\n" } keys %tried), "\n";
        }
@@ -933,20 +933,19 @@ sub rewrite_uuid {
 
 sub metadata_url {
        my ($self) = @_;
-       ($self->rewrite_root || $self->url) .
-          (length $self->path ? '/' . $self->path : '');
+       my $url = $self->rewrite_root || $self->url;
+       return add_path_to_url( $url, $self->path );
 }
 
 sub full_url {
        my ($self) = @_;
-       $self->url . (length $self->path ? '/' . $self->path : '');
+       return add_path_to_url( $self->url, $self->path );
 }
 
 sub full_pushurl {
        my ($self) = @_;
        if ($self->{pushurl}) {
-               return $self->{pushurl} . (length $self->path ? '/' .
-                      $self->path : '');
+               return add_path_to_url( $self->{pushurl}, $self->path );
        } else {
                return $self->full_url;
        }
@@ -1114,7 +1113,7 @@ sub find_parent_branch {
        my $r = $i->{copyfrom_rev};
        my $repos_root = $self->ra->{repos_root};
        my $url = $self->ra->url;
-       my $new_url = $url . $branch_from;
+       my $new_url = add_path_to_url( $url, $branch_from );
        print STDERR  "Found possible branch point: ",
                      "$new_url => ", $self->full_url, ", $r\n"
                      unless $::_q > 1;
@@ -1443,12 +1442,11 @@ sub find_extra_svk_parents {
        for my $ticket ( @tickets ) {
                my ($uuid, $path, $rev) = split /:/, $ticket;
                if ( $uuid eq $self->ra_uuid ) {
-                       my $url = $self->url;
-                       my $repos_root = $url;
+                       my $repos_root = $self->url;
                        my $branch_from = $path;
                        $branch_from =~ s{^/}{};
-                       my $gs = $self->other_gs($repos_root."/".$branch_from,
-                                                $url,
+                       my $gs = $self->other_gs(add_path_to_url( $repos_root, 
$branch_from ),
+                                                $repos_root,
                                                 $branch_from,
                                                 $rev,
                                                 $self->{ref_id});
@@ -1871,8 +1869,7 @@ sub make_log_entry {
                $email ||= "$author\@$uuid";
                $commit_email ||= "$author\@$uuid";
        } elsif ($self->use_svnsync_props) {
-               my $full_url = $self->svnsync->{url};
-               $full_url .= "/".$self->path if length $self->path;
+               my $full_url = add_path_to_url( $self->svnsync->{url}, 
$self->path );
                remove_username($full_url);
                my $uuid = $self->svnsync->{uuid};
                $log_entry{metadata} = "$full_url\@$rev $uuid";
diff --git a/perl/Git/SVN/Ra.pm b/perl/Git/SVN/Ra.pm
index eee7c00..788e642 100644
--- a/perl/Git/SVN/Ra.pm
+++ b/perl/Git/SVN/Ra.pm
@@ -5,6 +5,7 @@ use warnings;
 use SVN::Client;
 use Git::SVN::Utils qw(
        canonicalize_url
+       add_path_to_url
 );
 
 use SVN::Ra;
@@ -289,9 +290,8 @@ sub gs_do_switch {
        my $path = $gs->path;
        my $pool = SVN::Pool->new;
 
-       my $full_url = $self->url;
-       my $old_url = $full_url;
-       $full_url .= '/' . $path if length $path;
+       my $old_url = $self->url;
+       my $full_url = add_path_to_url( $self->url, $path );
        my ($ra, $reparented);
 
        if ($old_url =~ m#^svn(\+ssh)?://# ||
@@ -557,7 +557,7 @@ sub minimize_url {
        my @components = split(m!/!, $self->{svn_path});
        my $c = '';
        do {
-               $url .= "/$c" if length $c;
+               $url = add_path_to_url($url, $c);
                eval {
                        my $ra = (ref $self)->new($url);
                        my $latest = $ra->get_latest_revnum;
diff --git a/perl/Git/SVN/Utils.pm b/perl/Git/SVN/Utils.pm
index dab6e4d..3aec207 100644
--- a/perl/Git/SVN/Utils.pm
+++ b/perl/Git/SVN/Utils.pm
@@ -13,6 +13,7 @@ our @EXPORT_OK = qw(
        canonicalize_path
        canonicalize_url
        join_paths
+       add_path_to_url
 );
 
 
@@ -200,4 +201,30 @@ sub join_paths {
        return $new_path .= "/$last_path";
 }
 
+
+=head3 add_path_to_url
+
+    my $new_url = add_path_to_url($url, $path);
+
+Appends $path onto the $url.  If $path is empty, $url is returned unchanged.
+
+=cut
+
+sub add_path_to_url {
+       my($url, $path) = @_;
+
+       return $url if !defined $path or !length $path;
+
+       # Strip trailing and leading slashes so we don't
+       # wind up with http://x.com///path
+       $url  =~ s{/+$}{};
+       $path =~ s{^/+}{};
+
+       # If a path has a % in it, URI escape it so it's not
+       # mistaken for a URI escape later.
+       $path =~ s{%}{%25}g;
+
+       return join '/', $url, $path;
+}
+
 1;
diff --git a/t/Git-SVN/Utils/add_path_to_url.t 
b/t/Git-SVN/Utils/add_path_to_url.t
new file mode 100644
index 0000000..bfbd878
--- /dev/null
+++ b/t/Git-SVN/Utils/add_path_to_url.t
@@ -0,0 +1,27 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+
+use Test::More 'no_plan';
+
+use Git::SVN::Utils qw(
+       add_path_to_url
+);
+
+# A reference cannot be a hash key, so we use an array.
+my @tests = (
+       ["http://x.com";, "bar"]                 => 'http://x.com/bar',
+       ["http://x.com";, ""]                    => 'http://x.com',
+       ["http://x.com/foo/";, undef]            => 'http://x.com/foo/',
+       ["http://x.com/foo/";, "/bar/baz/"]      => 'http://x.com/foo/bar/baz/',
+       ["http://x.com";, 'per%cent']            => 'http://x.com/per%25cent',
+);
+
+while(@tests) {
+       my($have, $want) = splice @tests, 0, 2;
+
+       my $args = join ", ", map { qq['$_'] } map { defined($_) ? $_ : 'undef' 
} @$have;
+       my $name = "add_path_to_url($args) eq $want";
+       is add_path_to_url(@$have), $want, $name;
+}
-- 
1.7.11.3

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