Added rudimentary support for unpacking archive files using Archive::Extract.

[devedit.git] / modules / File / Access.pm

diff --git a/modules/File/Access.pm b/modules/File/Access.pm
index ad2bc13091da3884db25a4bccaf82d72278281a8..5e5cca10f8e143e08de9c920ed3b12b4d1a0dda8 100644 (file)
--- a/modules/File/Access.pm
+++ b/modules/File/Access.pm
@@ -7,27 +7,39 @@ package File::Access;
 # using only one command
 #
 # Author:        Patrick Canterino <patrick@patshaping.de>
 # using only one command
 #
 # Author:        Patrick Canterino <patrick@patshaping.de>

-# Last modified: 2005-02-16
+# Last modified: 2010-12-27
+#
+# Copyright (C) 1999-2000 Roland Bluethgen, Frank Schoenmann
+# Copyright (C) 2003-2009 Patrick Canterino
+# All Rights Reserved.
+#
+# This file can be distributed and/or modified under the terms of
+# of the Artistic License 1.0 (see also the LICENSE file found at
+# the top level of the Dev-Editor distribution).

 #
 
 use strict;
 
 use vars qw(@EXPORT
 #
 
 use strict;
 
 use vars qw(@EXPORT

-            $has_flock);
+            $has_flock
+            $has_archive_extract);

 
 use Fcntl qw(:DEFAULT
              :flock);
 
 
 use Fcntl qw(:DEFAULT
              :flock);
 

+use File::Copy;
+

 ### Export ###
 
 use base qw(Exporter);
 
 ### Export ###
 
 use base qw(Exporter);
 

-@EXPORT = qw(dir_read
+@EXPORT = qw(archive_unpack
+             dir_copy
+             dir_read

              file_create
              file_lock
              file_read
              file_save
              file_create
              file_lock
              file_read
              file_save

-             file_unlock

 
              LOCK_SH
              LOCK_EX
 
              LOCK_SH
              LOCK_EX


@@ -39,6 +51,90 @@ use base qw(Exporter);
 
 $has_flock = eval { local $SIG{'__DIE__'}; flock(STDOUT,0); 1 };
 
 
 $has_flock = eval { local $SIG{'__DIE__'}; flock(STDOUT,0); 1 };
 

+# Check if Archive::Extract is available
+
+$has_archive_extract = eval { local $SIG{'__DIE__'}; require Archive::Extract; 1 };
+
+# Predeclaration of dir_copy()
+
+sub dir_copy($$);
+
+# archive_unpack()
+#
+# Unpack an archive
+# (archive type must be supported by Archive::Extract)
+#
+# Params: 1. Archive path
+#         2. Path to extract (optional)
+#
+# Return: - Status code (Boolean)
+#         - undef if Archive::Extract is not available
+
+sub archive_unpack($;$)
+{
+ my ($archive,$path) = @_;
+
+ return undef unless($has_archive_extract);
+
+ return unless(-f $archive);
+ return if($path && not -d $path);
+
+ my $ae = Archive::Extract->new(archive => $archive);
+ return unless($ae);
+
+ if($path)
+ {
+  return $ae->extract(to => $path);
+ }
+ else
+ {
+  return $ae->extract;
+ }
+}
+
+# dir_copy()
+#
+# Copy a directory
+#
+# Params: 1. Directory to copy
+#         2. Target
+#
+# Return: Status code (Boolean)
+
+sub dir_copy($$)
+{
+ my ($dir,$target) = @_;
+
+ return unless(-d $dir);
+
+ my $entries = dir_read($dir) or return;
+
+ my $dirs    = $entries->{'dirs'};
+ my $files   = $entries->{'files'};
+
+ mkdir($target,0777) unless(-d $target);
+
+ foreach my $directory(@$dirs)
+ {
+  unless(-d $target.'/'.$directory)
+  {
+   mkdir($target.'/'.$directory,0777) or next;
+  }
+
+  if(-r $target.'/'.$directory && -x $target.'/'.$directory)
+  {
+   dir_copy($dir.'/'.$directory,$target.'/'.$directory) or next;
+  }
+ }
+
+ foreach my $file(@$files)
+ {
+  copy($dir.'/'.$file,$target.'/'.$file) or next;
+ }
+
+ return 1;
+}
+

 # dir_read()
 #
 # Collect the files and directories in a directory
 # dir_read()
 #
 # Collect the files and directories in a directory


@@ -183,25 +279,6 @@ sub file_save($$;$)
  return 1;
 }
 
  return 1;
 }
 

-# file_unlock()
-#
-# Remove a file from the list of files in use
-#
-# Params: 1. File::UseList object
-#         2. File to remove
-#
-# Return: Status code (Boolean)
-
-sub file_unlock($$)
-{
- my ($uselist,$file) = @_;
-
- $uselist->remove_file($file) or return;
- $uselist->save               or return;
-
- return 1;
-}
-

 # it's true, baby ;-)
 
 1;
 # it's true, baby ;-)
 
 1;