[kernel] r14161 - dists/trunk/firmware-nonfree/linux-nonfree

[Ben Hutchings]

Author: benh
Date: Sat Aug 22 01:05:12 2009
New Revision: 14161

Log:
Add update advisor script that compares against linux-firmware.git

Added:
   dists/trunk/firmware-nonfree/linux-nonfree/update.py   (contents, props changed)

Added: dists/trunk/firmware-nonfree/linux-nonfree/update.py
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ dists/trunk/firmware-nonfree/linux-nonfree/update.py	Sat Aug 22 01:05:12 2009	(r14161)
@@ -0,0 +1,109 @@
+#!/usr/bin/python
+
+import errno, filecmp, os.path, re, sys
+
+def main(for_main, source_dir, dest_dir):
+    sections = []
+    section = None
+    keyword = None
+    filename = None
+
+    for line in open(os.path.join(source_dir, 'WHENCE')):
+        if line.startswith('----------'):
+            # New section
+            section = {
+                'driver': None,
+                'file': {},
+                'licence': None
+                }
+            sections.append(section)
+            continue
+
+        if not section:
+            # Skip header
+            continue
+
+        if line == '\n':
+            # End of field; end of file fields
+            keyword = None
+            filename = None
+            continue
+
+        match = re.match(
+            r'(Driver|File|Info|Licen[cs]e|Source|Version):\s*(.*)\n',
+            line)
+        if not match:
+            continue
+        keyword, value = match.group(1, 2)
+        if keyword == 'Driver':
+            section['driver'] = value.split(' ')[0].lower()
+        elif keyword == 'File':
+            match = re.match(r'(\S+)\s+--\s+(.*)', value)
+            if match:
+                filename = match.group(1)
+                section['file'][filename] = {'info': match.group(2)}
+            else:
+                for filename in value.strip().split():
+                    section['file'][filename] = {}
+        elif keyword in ['Info', 'Version']:
+            section['file'][filename]['version'] = value
+        elif keyword == 'Source':
+            section['file'][filename]['source'] = value
+        elif keyword in ['Licence', 'License']:
+            match = re.match(r'(BSD'
+                             r'|GPLv2(?:\+| or later| or OpenIB\.org BSD)?'
+                             r'|Redistributable\.)\b',
+                             value)
+            if match:
+                section['licence'] = match.group(1)
+
+    for section in sections:
+        if section['licence'] in ['BSD', 'GPLv2 or OpenIB.org BSD']:
+            # Suitable for main or non-free depending on source availability
+            pass
+        elif section['licence'] == 'Redistributable':
+            # Only suitable for non-free
+            if for_main:
+                continue
+        elif section['licence']:  # others are GPLv2 or GPLv2+
+            # Only suitable for main; source must be available
+            if not for_main:
+                continue
+        else:
+            # Probably not distributable
+            continue
+        for filename, file_info in section['file'].iteritems():
+            if file_info.get('source') or not for_main:
+                update_file(source_dir, dest_dir, filename)
+
+def update_file(source_dir, dest_dir, filename):
+    try:
+        if not filecmp.cmp(os.path.join(source_dir, filename),
+                           os.path.join(dest_dir, filename),
+                           True):
+            print '%s: changed' % filename
+    except EnvironmentError, e:
+        if e.errno == errno.ENOENT:
+            if os.path.isfile(os.path.join(source_dir, filename)):
+                print '%s: could be added' % filename
+
+if __name__ == '__main__':
+    for_main = False
+    i = 1
+    if len(sys.argv) > i and sys.argv[i] == '--main':
+        for_main = True
+        i += 1
+    if len(sys.argv) != i + 2:
+        print >>sys.stderr, '''\
+Usage: ./update.py [--main] <linux-firmware-dir> <dest-dir>
+
+Report changes or additions in linux-firmware.git that may be suitable
+for inclusion in firmware-nonfree or linux-2.6.
+
+For firmware-nonfree, specify the linux-nonfree directory as <dest-dir>.
+
+For linux-2.6, use the '--main' option and specify the lib/firmware
+directory under the firmware-linux-free build directory as <dest-dir>.
+'''
+        sys.exit(2)
+    main(for_main, sys.argv[i], sys.argv[i + 1])