Git.pm: call Error::Simple() properly

diff --git a/perl/Git.pm b/perl/Git.pm
index 405f68fc391cdae158dde10f7128f4a3b8167860..29a17839f3564bb5518304569e592a738e78d8af 100644 (file)
--- a/perl/Git.pm
+++ b/perl/Git.pm
@@ -58,7 +58,7 @@ =head1 SYNOPSIS
                 command_bidi_pipe command_close_bidi_pipe
                 version exec_path hash_object git_cmd_try
                 remote_refs
-                temp_acquire temp_release temp_reset);
+                temp_acquire temp_release temp_reset temp_path);
 
 
 =head1 DESCRIPTION
@@ -100,8 +100,6 @@ =head1 DESCRIPTION
 use Error qw(:try);
 use Cwd qw(abs_path);
 use IPC::Open2 qw(open2);
-use File::Temp ();
-require File::Spec;
 use Fcntl qw(SEEK_SET SEEK_CUR);
 }
 
@@ -939,7 +937,7 @@ sub _close_cat_blob {
 
 { # %TEMP_* Lexical Context
 
-my (%TEMP_LOCKS, %TEMP_FILES);
+my (%TEMP_FILEMAP, %TEMP_FILES);
 
 =item temp_acquire ( NAME )
 
@@ -967,7 +965,7 @@ sub temp_acquire {
 
        my $temp_fd = _temp_cache($name);
 
-       $TEMP_LOCKS{$temp_fd} = 1;
+       $TEMP_FILES{$temp_fd}{locked} = 1;
        $temp_fd;
 }
 
@@ -993,27 +991,29 @@ sub temp_acquire {
 sub temp_release {
        my ($self, $temp_fd, $trunc) = _maybe_self(@_);
 
-       if (ref($temp_fd) ne 'File::Temp') {
+       if (exists $TEMP_FILEMAP{$temp_fd}) {
                $temp_fd = $TEMP_FILES{$temp_fd};
        }
-       unless ($TEMP_LOCKS{$temp_fd}) {
+       unless ($TEMP_FILES{$temp_fd}{locked}) {
                carp "Attempt to release temp file '",
                        $temp_fd, "' that has not been locked";
        }
        temp_reset($temp_fd) if $trunc and $temp_fd->opened;
 
-       $TEMP_LOCKS{$temp_fd} = 0;
+       $TEMP_FILES{$temp_fd}{locked} = 0;
        undef;
 }
 
 sub _temp_cache {
        my ($name) = @_;
 
-       my $temp_fd = \$TEMP_FILES{$name};
+       _verify_require();
+
+       my $temp_fd = \$TEMP_FILEMAP{$name};
        if (defined $$temp_fd and $$temp_fd->opened) {
-               if ($TEMP_LOCKS{$$temp_fd}) {
-                       throw Error::Simple("Temp file with moniker '",
-                               $name, "' already in use");
+               if ($TEMP_FILES{$$temp_fd}{locked}) {
+                       throw Error::Simple("Temp file with moniker '" .
+                               $name . "' already in use");
                }
        } else {
                if (defined $$temp_fd) {
@@ -1021,16 +1021,22 @@ sub _temp_cache {
                        carp "Temp file '", $name,
                                "' was closed. Opening replacement.";
                }
-               $$temp_fd = File::Temp->new(
-                       TEMPLATE => 'Git_XXXXXX',
-                       DIR => File::Spec->tmpdir
+               my $fname;
+               ($$temp_fd, $fname) = File::Temp->tempfile(
+                       'Git_XXXXXX', UNLINK => 1
                        ) or throw Error::Simple("couldn't open new temp file");
                $$temp_fd->autoflush;
                binmode $$temp_fd;
+               $TEMP_FILES{$$temp_fd}{fname} = $fname;
        }
        $$temp_fd;
 }
 
+sub _verify_require {
+       eval { require File::Temp; require File::Spec; };
+       $@ and throw Error::Simple($@);
+}
+
 =item temp_reset ( FILEHANDLE )
 
 Truncates and resets the position of the C<FILEHANDLE>.
@@ -1048,8 +1054,25 @@ sub temp_reset {
                or throw Error::Simple("expected file position to be reset");
 }
 
+=item temp_path ( NAME )
+
+=item temp_path ( FILEHANDLE )
+
+Returns the filename associated with the given tempfile.
+
+=cut
+
+sub temp_path {
+       my ($self, $temp_fd) = _maybe_self(@_);
+
+       if (exists $TEMP_FILEMAP{$temp_fd}) {
+               $temp_fd = $TEMP_FILEMAP{$temp_fd};
+       }
+       $TEMP_FILES{$temp_fd}{fname};
+}
+
 sub END {
-       unlink values %TEMP_FILES if %TEMP_FILES;
+       unlink values %TEMP_FILEMAP if %TEMP_FILEMAP;
 }
 
 } # %TEMP_* Lexical Context
@@ -1180,8 +1203,7 @@ =head1 COPYRIGHT
 # the method was called upon an instance and (undef, @args) if
 # it was called directly.
 sub _maybe_self {
-       # This breaks inheritance. Oh well.
-       ref $_[0] eq 'Git' ? @_ : (undef, @_);
+       UNIVERSAL::isa($_[0], 'Git') ? @_ : (undef, @_);
 }
 
 # Check if the command id is something reasonable.