Added package generation export filter

svn: r446

src/TarFile.py

@@ -0,0 +1,80 @@
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2000  Donald N. Allingham
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+import gzip
+
+_BLKSIZE=512
+nul = '\0'
+
+#------------------------------------------------------------------------
+#
+# 
+#
+#------------------------------------------------------------------------
+class TarFile:
+    def __init__(self,name):
+        self.name = name
+        self.f = gzip.open(name,"wb")
+        self.pos = 0
+        
+    def add_file(self,filename,mtime,iobuf):
+        iobuf.seek(0,2)
+        length = iobuf.tell()
+        iobuf.seek(0)
+
+        buf = filename
+        buf = buf + '\0'*(100-len(filename))
+        buf = buf + "0100664" + nul
+        buf = buf + "0000764" + nul
+        buf = buf + "0000764" + nul
+        buf = buf + "%011o" % length + nul
+        buf = buf + "%011o" % mtime + nul
+        buf = buf + "%s"
+        buf = buf + "0" + '\0'*100 + 'ustar  \0'
+        buf = buf + '\0'*32
+        buf = buf + '\0'*32
+        buf = buf + '\0'*183
+
+        chksum = 0
+        blank = "        "
+        temp = buf % (blank)
+        for c in temp:
+            chksum = chksum + ord(c)
+        sum = "%06o " % chksum
+        sum = sum + nul
+        buf = buf % sum
+
+        self.pos = self.pos + len(buf)
+        self.f.write(buf)
+
+        buf = iobuf.read(length)
+        self.f.write(buf)
+        self.pos = self.pos + length
+        rem = _BLKSIZE - (self.pos % _BLKSIZE)
+        if rem != 0:
+            self.f.write('\0' * rem)
+        self.pos = self.pos + rem
+
+
+    def close(self):
+        rem = (_BLKSIZE*20) - (self.pos % (_BLKSIZE*20))
+        if rem != 0:
+            self.f.write('\0' * rem)
+        self.f.close()
+