format-patch: use branch description in cover letter

diff --git a/perl/Git.pm b/perl/Git.pm
index 970fe434ed02e1850b984ddcbdbff6c13a21083c..a86ab709c25b5e110aa2708941cea560f82c1fa8 100644 (file)
--- a/perl/Git.pm
+++ b/perl/Git.pm
@@ -7,6 +7,7 @@ =head1 NAME
 
 package Git;
 
+use 5.008;
 use strict;
 
 
@@ -98,7 +99,7 @@ =head1 DESCRIPTION
 
 use Carp qw(carp croak); # but croak is bad - throw instead
 use Error qw(:try);
-use Cwd qw(abs_path);
+use Cwd qw(abs_path cwd);
 use IPC::Open2 qw(open2);
 use Fcntl qw(SEEK_SET SEEK_CUR);
 }
@@ -172,7 +173,7 @@ sub repository {
        }
 
        if (defined $opts{Directory}) {
-               -d $opts{Directory} or throw Error::Simple("Directory not found: $!");
+               -d $opts{Directory} or throw Error::Simple("Directory not found: $opts{Directory} $!");
 
                my $search = Git->repository(WorkingCopy => $opts{Directory});
                my $dir;
@@ -395,7 +396,16 @@ sub command_close_pipe {
 
 sub command_bidi_pipe {
        my ($pid, $in, $out);
+       my ($self) = _maybe_self(@_);
+       local %ENV = %ENV;
+       my $cwd_save = undef;
+       if ($self) {
+               shift;
+               $cwd_save = cwd();
+               _setup_git_cmd_env($self);
+       }
        $pid = open2($in, $out, 'git', @_);
+       chdir($cwd_save) if $cwd_save;
        return ($pid, $in, $out, join(' ', @_));
 }
 
@@ -545,7 +555,7 @@ sub wc_chdir {
                or throw Error::Simple("bare repository");
 
        -d $self->wc_path().'/'.$subdir
-               or throw Error::Simple("subdir not found: $!");
+               or throw Error::Simple("subdir not found: $subdir $!");
        # Of course we will not "hold" the subdirectory so anyone
        # can delete it now and we will never know. But at least we tried.
 
@@ -842,7 +852,7 @@ sub _open_hash_and_insert_object_if_needed {
 
        ($self->{hash_object_pid}, $self->{hash_object_in},
         $self->{hash_object_out}, $self->{hash_object_ctx}) =
-               command_bidi_pipe(qw(hash-object -w --stdin-paths));
+               $self->command_bidi_pipe(qw(hash-object -w --stdin-paths --no-filters));
 }
 
 sub _close_hash_and_insert_object {
@@ -931,7 +941,7 @@ sub _open_cat_blob_if_needed {
 
        ($self->{cat_blob_pid}, $self->{cat_blob_in},
         $self->{cat_blob_out}, $self->{cat_blob_ctx}) =
-               command_bidi_pipe(qw(cat-file --batch));
+               $self->command_bidi_pipe(qw(cat-file --batch));
 }
 
 sub _close_cat_blob {
@@ -1278,6 +1288,14 @@ sub _command_common_pipe {
 # for the given repository and execute the git command.
 sub _cmd_exec {
        my ($self, @args) = @_;
+       _setup_git_cmd_env($self);
+       _execv_git_cmd(@args);
+       die qq[exec "@args" failed: $!];
+}
+
+# set up the appropriate state for git command
+sub _setup_git_cmd_env {
+       my $self = shift;
        if ($self) {
                $self->repo_path() and $ENV{'GIT_DIR'} = $self->repo_path();
                $self->repo_path() and $self->wc_path()
@@ -1285,8 +1303,6 @@ sub _cmd_exec {
                $self->wc_path() and chdir($self->wc_path());
                $self->wc_subdir() and chdir($self->wc_subdir());
        }
-       _execv_git_cmd(@args);
-       die qq[exec "@args" failed: $!];
 }
 
 # Execute the given Git command ($_[0]) with arguments ($_[1..])