Auto-generate a complete NOTICE file.
Remove the hand-collated ones, and switch to a script that pulls the
copyright headers out of every file and collects the unique ones.
Change-Id: Ied3b98b3f56241df97166c410ff81de4e0157c9d
diff --git a/libc/tools/generate-NOTICE.py b/libc/tools/generate-NOTICE.py
new file mode 100755
index 0000000..eaae328
--- /dev/null
+++ b/libc/tools/generate-NOTICE.py
@@ -0,0 +1,147 @@
+#!/usr/bin/python
+# Run with directory arguments from any directory, with no special setup required.
+
+import ftplib
+import hashlib
+import os
+import re
+import shutil
+import string
+import subprocess
+import sys
+import tarfile
+import tempfile
+
+def IsUninteresting(path):
+ path = path.lower()
+ if path.endswith(".mk") or path.endswith(".py") or path.endswith(".pyc") or path.endswith(".txt") or path.endswith(".3"):
+ return True
+ if path.endswith("/notice") or path.endswith("/readme") or path.endswith("/caveats"):
+ return True
+ if path.endswith("/zoneinfo.dat") or path.endswith("/zoneinfo.idx") or path.endswith("/zoneinfo.version") or path.endswith("/zoneinfo/generate"):
+ return True
+ return False
+
+def IsAutoGenerated(content):
+ if "generated by gensyscalls.py" in content or "generated by genserv.py" in content:
+ return True
+ if "This header was automatically generated from a Linux kernel header" in content:
+ return True
+ return False
+
+copyrights = set()
+
+def ExtractCopyrightAt(lines, i):
+ hash = lines[i].startswith("#")
+
+ # Read comment lines until we hit something that terminates a
+ # copyright header.
+ start = i
+ while i < len(lines):
+ if "*/" in lines[i]:
+ break
+ if hash and len(lines[i]) == 0:
+ break
+ if "\t@(#)" in lines[i] or "\tfrom: @(#)" in lines[i] or "From: @(#)" in lines[i] or "from OpenBSD:" in lines[i]:
+ break
+ if "\tcitrus Id: " in lines[i]:
+ break
+ if "\t$OpenBSD: " in lines[i] or " $FreeBSD: " in lines[i] or "\t$NetBSD: " in lines[i]:
+ break
+ if "$FreeBSD$" in lines[i] or "$Citrus$" in lines[i]:
+ break
+ i += 1
+
+ end = i
+
+ # Trim trailing cruft.
+ while end > 0:
+ if lines[end - 1] != " *" and lines[end - 1] != " * ====================================================":
+ break
+ end -= 1
+
+ # Remove C/assembler comment formatting, pulling out just the text.
+ clean_lines = []
+ for line in lines[start:end]:
+ line = line.replace("\t", " ")
+ line = line.replace("/* ", "")
+ line = line.replace(" * ", "")
+ line = line.replace("** ", "")
+ line = line.replace("# ", "")
+ if line.startswith("++Copyright++"):
+ continue
+ line = line.replace("--Copyright--", "")
+ line = line.rstrip()
+ # These come last and take care of "blank" comment lines.
+ if line == "#" or line == " *" or line == "**" or line == "-":
+ line = ""
+ clean_lines.append(line)
+
+ # Trim blank lines from head and tail.
+ while clean_lines[0] == "":
+ clean_lines = clean_lines[1:]
+ while clean_lines[len(clean_lines) - 1] == "":
+ clean_lines = clean_lines[0:(len(clean_lines) - 1)]
+
+ copyright = "\n".join(clean_lines)
+ copyrights.add(copyright)
+
+ return i
+
+args = sys.argv[1:]
+if len(args) == 0:
+ args = [ "." ]
+
+for arg in args:
+ sys.stderr.write('Searching for source files in "%s"...\n' % arg)
+
+ for directory, sub_directories, filenames in os.walk(arg):
+ if ".git" in sub_directories:
+ sub_directories.remove(".git")
+ sub_directories = sorted(sub_directories)
+
+ for filename in sorted(filenames):
+ path = os.path.join(directory, filename)
+ if IsUninteresting(path):
+ #print "ignoring uninteresting file %s" % path
+ continue
+
+ try:
+ content = open(path, 'r').read().decode('utf-8')
+ except:
+ # TODO: update hash.h, md5.c, and md5.h; upstream is probably UTF-8 already.
+ sys.stderr.write('warning: bad UTF-8 in %s\n' % path)
+ content = open(path, 'r').read().decode('iso-8859-1')
+
+ lines = content.split("\n")
+
+ if len(lines) <= 4:
+ #print "ignoring short file %s" % path
+ continue
+
+ if IsAutoGenerated(content):
+ #print "ignoring auto-generated file %s" % path
+ continue
+
+ if not "Copyright" in content:
+ if "public domain" in content.lower():
+ #print "ignoring public domain file %s" % path
+ continue
+ sys.stderr.write('warning: no copyright notice found in "%s" (%d lines)\n' % (path, len(lines)))
+ continue
+
+ i = 0
+ while i < len(lines):
+ if "Copyright" in lines[i]:
+ i = ExtractCopyrightAt(lines, i)
+ i += 1
+
+ #print path
+
+for copyright in copyrights:
+ print copyright.encode('utf-8')
+ print
+ print '-------------------------------------------------------------------'
+ print
+
+sys.exit(0)