First semblance of distutils setuptools. Not complete yet though.

2008-11-23 23:17:02 -05:00
commit 934d53057d
37 changed files with 6762 additions and 0 deletions
--- a/example/iso3.py
+++ b/example/iso3.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+"""A program to show using iso9660 to extract a file from an ISO-9660
+image.  If a single argument is given, it is used as the ISO 9660
+image to use in the extraction. Otherwise a compiled in default ISO
+9660 image name (that comes with the libcdio distribution) will be
+used."""
+#
+#  Copyright (C) 2006, 2008 Rocky Bernstein <rocky@gnu.org>
+#  
+#  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 3 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, see <http://www.gnu.org/licenses/>.
+
+import os, sys
+libdir = os.path.join(os.path.dirname(__file__), '..')
+if libdir[-1] != os.path.sep:
+    libdir += os.path.sep
+sys.path.insert(0, libdir)
+import pycdio
+import iso9660
+
+# Python has rounding (round) and truncation (int), but what about an integer
+# ceiling function? Until I learn what it is...
+def ceil(x):
+    return int(round(x+0.5))
+
+# The default ISO 9660 image if none given
+ISO9660_IMAGE_PATH="../data"
+ISO9660_IMAGE=os.path.join(ISO9660_IMAGE_PATH, "copying.iso")
+
+# File to extract if none given.
+local_filename="copying"
+
+iso_image_fname = ISO9660_IMAGE
+
+if len(sys.argv) > 1:
+    iso_image_fname = sys.argv[1]
+    if len(sys.argv) > 2:
+        local_filename = sys.argv[1]
+        if len(sys.argv) > 3:
+            print """
+usage: %s [ISO9660-image.ISO [filename]]
+Extracts filename from ISO9660-image.ISO.
+""" % sys.argv[0]
+            sys.exit(1)
+
+iso = iso9660.ISO9660.IFS(source=iso_image_fname)
+  
+if not iso.is_open():
+    print "Sorry, couldn't open %s as an ISO-9660 image." % iso_image_fname
+    sys.exit(1)
+
+
+statbuf = iso.stat (local_filename, True)
+
+if statbuf is None:
+    print "Could not get ISO-9660 file information for file %s" \
+          % local_filename
+    iso.close()
+    sys.exit(2)
+
+try:
+    OUTPUT=os.open(local_filename, os.O_CREAT|os.O_WRONLY, 0664)
+except:    
+    print "Can't open %s for writing" % local_filename
+
+# Copy the blocks from the ISO-9660 filesystem to the local filesystem. 
+blocks = ceil(statbuf['size'] / pycdio.ISO_BLOCKSIZE)
+for i in range(blocks):
+    lsn = statbuf['LSN'] + i
+    size, buf = iso.seek_read (lsn)
+
+    if size <= 0:
+        print "Error reading ISO 9660 file %s at LSN %d" % (
+            local_filename, lsn)
+        sys.exit(4)
+    
+    os.write(OUTPUT, buf)
+
+
+# Make sure the file size has the exact same byte size. Without the
+# truncate below, the file will a multiple of ISO_BLOCKSIZE.
+
+os.ftruncate(OUTPUT, statbuf['size'])
+
+print "Extraction of file '%s' from %s successful." % (
+    local_filename,  iso_image_fname)
+
+os.close(OUTPUT)
+iso.close()
+sys.exit(0)