initial implementation of install.tar.7z code.

pisi/archive.py

@@ -70,10 +70,12 @@ class ArchiveTar(ArchiveBase):
     This class provides the unpack magic for tar archives."""
     def __init__(self, file_path, arch_type = "tar"):
         super(ArchiveTar, self).__init__(file_path, arch_type)
+        self.tar = None
 
     def unpack(self, target_dir, clean_dir = False):
         """Unpack tar archive to a given target directory(target_dir)."""
-        super(ArchiveTar, self).unpack(target_dir, clean_dir)
+#       FIX: do we need this for tar archives?
+#       super(ArchiveTar, self).unpack(target_dir, clean_dir)
 
         rmode = ""
         if self.type == 'tar':
@@ -82,17 +84,44 @@ class ArchiveTar(ArchiveBase):
             rmode = 'r:gz'
         elif self.type == 'tarbz2':
             rmode = 'r:bz2'
+        elif self.type == 'tar7z':
+            rmode = 'r:'
+            os.system("7z e -y -o%s %s" % (ctx.config.tmp_dir(), self.file_path))
+            self.file_path = self.file_path.rstrip('.7z')
         else:
             raise ArchiveError(_("Archive type not recognized"))
 
-        tar = tarfile.open(self.file_path, rmode)
+        self.tar = tarfile.open(self.file_path, rmode)
         oldwd = os.getcwd()
-        os.chdir(self.target_dir)
-        for tarinfo in tar:
-            tar.extract(tarinfo)
+        os.chdir(target_dir)
+        for tarinfo in self.tar:
+            self.tar.extract(tarinfo)
         os.chdir(oldwd)
-        tar.close()
+        self.close()
 
+    def add_to_archive(self, file_name, arc_name=None):
+        """Add file or directory path to the tar archive"""
+        if not self.tar:
+            if self.type == 'tar':
+                wmode = 'w:'
+            elif self.type == 'targz':
+                wmode = 'w:gz'
+            elif self.type == 'tarbz2':
+                wmode = 'w:bz2'
+            elif self.type == 'tar7z':
+                wmode = 'w:'
+                self.file_path = self.file_path.rstrip('.7z')
+            else:
+                raise ArchiveError(_("Archive type not recognized"))
+            self.tar = tarfile.open(self.file_path, wmode)
+            
+        self.tar.add(file_name, arc_name)
+
+    def close(self):
+        if self.tar.mode == 'wb' and self.type == 'tar7z':
+            os.system("7z a -mx=9 %s %s" % (self.file_path + '.7z', self.file_path))
+
+        self.tar.close()
 
 class ArchiveZip(ArchiveBase):
     """ArchiveZip handles zip archives. 

pisi/atomicoperations.py

@@ -270,7 +270,7 @@ class Install(AtomicOperation):
                 if path in leftover or old_fileinfo[path].type == ctx.const.conf:
                     Remove.remove_file( old_fileinfo[path] )
 
-        self.package.extract_dir_flat('install', ctx.config.dest_dir())
+        self.package.extract_install()
 
     def store_pisi_files(self):
         """put files.xml, metadata.xml, actions.py and COMAR scripts

pisi/build.py

@@ -39,7 +39,7 @@ from pisi.uri import URI
 from pisi.metadata import MetaData
 from pisi.package import Package
 import pisi.component as component
-
+import pisi.archive as archive
 import pisi.actionsapi.variables
 
 
@@ -801,11 +801,14 @@ class Builder:
             # created files.xml
             files = Files()
             files.read(ctx.const.files_xml)
+            tar = archive.ArchiveTar("install.tar.7z", "tar7z")
             for finfo in files.list:
                 orgname = arcname = join("install", finfo.path)
                 if package.debug_package:
                     orgname = join("debug", finfo.path)
-                pkg.add_to_package(orgname, arcname)
+                tar.add_to_archive(orgname, arcname.lstrip("install"))
+            tar.close()
+            pkg.add_to_package("install.tar.7z")
 
             pkg.close()
             os.chdir(c)

pisi/package.py

@@ -117,6 +117,11 @@ class Package:
         copies the directory archiveroot/dir to outdir"""
         self.impl.unpack_dir(dir, outdir)
 
+    def extract_install(self):
+        self.extract_file('install.tar.7z', ctx.config.tmp_dir())
+        tar = archive.ArchiveTar(join(ctx.config.tmp_dir(), 'install.tar.7z'), 'tar7z')
+        tar.unpack(ctx.config.dest_dir())
+        
     def extract_dir_flat(self, dir, outdir):
         """Extract directory recursively, this function
         unpacks the *contents* of directory archiveroot/dir inside outdir