1 files changed, 97 insertions, 0 deletions
diff --git a/debian/bin/check_upstream.py b/debian/bin/check_upstream.py
new file mode 100755
index 0000000..a1ad61b
--- /dev/null
+++ b/debian/bin/check_upstream.py
@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+
+import errno, filecmp, fnmatch, glob, os.path, re, sys
+from debian import deb822
+from enum import Enum
+
+sys.path.insert(0, "debian/lib/python")
+rules_defs = dict((match.group(1), match.group(2))
+                  for line in open('debian/rules.defs')
+                  for match in [re.match(r'(\w+)\s*:=\s*(.*)\n', line)])
+sys.path.append('/usr/share/linux-support-%s/lib/python' %
+                rules_defs['KERNELVERSION'])
+from debian_linux.firmware import FirmwareWhence
+from config import Config
+
+class DistState(Enum):
+    undistributable = 1
+    non_free = 2
+    free = 3
+
+def is_source_available(section):
+    for file_info in section.files.values():
+        if not (file_info.source or file_info.binary.endswith('.cis')):
+            return False
+    return True
+
+def check_section(section):
+    if re.search(r'^BSD\b'
+                 r'|^GPLv2 or OpenIB\.org BSD\b'
+                 r'|\bPermission\s+is\s+hereby\s+granted\s+for\s+the\s+'
+                 r'distribution\s+of\s+this\s+firmware\s+(?:data|image)\b'
+                 r'(?!\s+as\s+part\s+of)'
+                 r'|\bRedistribution\s+and\s+use\s+in(?:\s+source\s+and)?'
+                 r'\s+binary\s+forms\b'
+                 r'|\bPermission\s+is\s+hereby\s+granted\b[^.]+\sto'
+                 r'\s+deal\s+in\s+the\s+Software\s+without'
+                 r'\s+restriction\b'
+                 r'|\bredistributable\s+in\s+binary\s+form\b',
+                 section.licence):
+        return (DistState.free if is_source_available(section)
+                else DistState.non_free)
+    elif re.match(r'^(?:D|Red)istributable\b', section.licence):
+        return DistState.non_free
+    elif re.match(r'^GPL(?:v[23]|\+)?\b|^Dual GPL(?:v[23])?/', section.licence):
+        return (DistState.free if is_source_available(section)
+                else DistState.undistributable)
+    else:
+        # Unrecognised and probably undistributable
+        return DistState.undistributable
+
+def main(source_dir='.'):
+    config = Config()
+    over_dirs = ['debian/config/' + package for
+                 package in config['base',]['packages']]
+    with open("debian/copyright") as f:
+        exclusions = deb822.Deb822(f).get("Files-Excluded", '').strip().split()
+    packaged_files = {}
+    for package in config['base',]['packages']:
+        for filename in config['base', package]['files']:
+            packaged_files[filename] = package
+
+    for section in FirmwareWhence(open(os.path.join(source_dir, 'WHENCE'))):
+        dist_state = check_section(section)
+        for file_info in section.files.values():
+            if dist_state == DistState.free:
+                if not any(fnmatch.fnmatch(file_info.binary, exclusion)
+                           for exclusion in exclusions):
+                    if file_info.binary in packaged_files:
+                        update_file(source_dir, over_dirs, file_info.binary)
+                        for source in file_info.source:
+                            update_file(source_dir, over_dirs, source)
+                    elif os.path.isfile(filename):
+                        print('I: %s is not included in any binary package' %
+                              file_info.binary)
+                    else:
+                        print('I: %s: could be added' % file_info.binary)
+            elif dist_state == DistState.non_free:
+                if os.path.isfile(file_info.binary):
+                    print('W: %s appears to be non-free' %
+                          file_info.binary)
+            elif dist_state == DistState.undistributable:
+                if os.path.isfile(file_info.binary):
+                    print('W: %s appears to be undistributable' %
+                          file_info.binary)
+
+def update_file(source_dir, over_dirs, filename):
+    source_file = os.path.join(source_dir, filename)
+    for over_dir in over_dirs:
+        for over_file in ([os.path.join(over_dir, filename)] +
+                          glob.glob(os.path.join(over_dir, filename + '-*'))):
+            if os.path.isfile(over_file):
+                if not filecmp.cmp(source_file, over_file, True):
+                    print('I: %s: changed' % filename)
+                return
+
+if __name__ == '__main__':
+    main(*sys.argv[1:])