190 lines
6.4 KiB
Python
Executable File
190 lines
6.4 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright (C) 2012 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Usage: generate-notice-files [plain text output file] [html output file] [file title] [directory of notices]
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Generate the Android notice files, including both text and html files.
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-h to display this usage message and exit.
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"""
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from collections import defaultdict
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import getopt
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import hashlib
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import itertools
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import os
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import os.path
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import re
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import sys
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MD5_BLOCKSIZE = 1024 * 1024
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HTML_ESCAPE_TABLE = {
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"&": "&",
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'"': """,
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"'": "'",
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">": ">",
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"<": "<",
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}
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try:
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opts, args = getopt.getopt(sys.argv[1:], "h")
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except getopt.GetoptError, err:
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print str(err)
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print __doc__
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sys.exit(2)
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for o, a in opts:
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if o == "-h":
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print __doc__
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sys.exit(2)
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else:
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print >> sys.stderr, "unhandled option %s" % (o,)
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if len(args) != 4:
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print """need exactly four arguments, the two output files, the file title
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and the directory containing notices, not %d""" % (len(args),)
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print __doc__
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sys.exit(1)
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def hexify(s):
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return ("%02x"*len(s)) % tuple(map(ord, s))
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def md5sum(filename):
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"""Calculate an MD5 of the file given by FILENAME,
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and return hex digest as a string.
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Output should be compatible with md5sum command"""
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f = open(filename, "rb")
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sum = hashlib.md5()
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while 1:
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block = f.read(MD5_BLOCKSIZE)
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if not block:
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break
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sum.update(block)
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f.close()
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return hexify(sum.digest())
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def html_escape(text):
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"""Produce entities within text."""
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return "".join(HTML_ESCAPE_TABLE.get(c,c) for c in text)
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HTML_OUTPUT_CSS="""
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<style type="text/css">
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body { padding: 0; font-family: sans-serif; }
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.same-license { background-color: #eeeeee; border-top: 20px solid white; padding: 10px; }
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.label { font-weight: bold; }
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.file-list { margin-left: 1em; color: blue; }
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</style>
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"""
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def combine_notice_files_html(file_hash, input_dir, output_filename):
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"""Combine notice files in FILE_HASH and output a HTML version to OUTPUT_FILENAME."""
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SRC_DIR_STRIP_RE = re.compile(input_dir + "(/.*).txt")
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# Set up a filename to row id table (anchors inside tables don't work in
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# most browsers, but href's to table row ids do)
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id_table = {}
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id_count = 0
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for value in file_hash:
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for filename in value:
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id_table[filename] = id_count
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id_count += 1
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# Open the output file, and output the header pieces
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output_file = open(output_filename, "wb")
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print >> output_file, "<html><head>"
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print >> output_file, HTML_OUTPUT_CSS
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print >> output_file, '</head><body topmargin="0" leftmargin="0" rightmargin="0" bottommargin="0">'
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# Output our table of contents
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print >> output_file, '<div class="toc">'
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print >> output_file, "<ul>"
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# Flatten the list of lists into a single list of filenames
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sorted_filenames = sorted(itertools.chain.from_iterable(file_hash))
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# Print out a nice table of contents
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for filename in sorted_filenames:
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stripped_filename = SRC_DIR_STRIP_RE.sub(r"\1", filename)
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print >> output_file, '<li><a href="#id%d">%s</a></li>' % (id_table.get(filename), stripped_filename)
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print >> output_file, "</ul>"
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print >> output_file, "</div><!-- table of contents -->"
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# Output the individual notice file lists
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print >>output_file, '<table cellpadding="0" cellspacing="0" border="0">'
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for value in file_hash:
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print >> output_file, '<tr id="id%d"><td class="same-license">' % id_table.get(value[0])
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print >> output_file, '<div class="label">Notices for file(s):</div>'
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print >> output_file, '<div class="file-list">'
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for filename in value:
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print >> output_file, "%s <br/>" % (SRC_DIR_STRIP_RE.sub(r"\1", filename))
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print >> output_file, "</div><!-- file-list -->"
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print >> output_file
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print >> output_file, '<pre class="license-text">'
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print >> output_file, html_escape(open(value[0]).read())
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print >> output_file, "</pre><!-- license-text -->"
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print >> output_file, "</td></tr><!-- same-license -->"
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print >> output_file
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print >> output_file
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print >> output_file
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# Finish off the file output
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print >> output_file, "</table>"
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print >> output_file, "</body></html>"
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output_file.close()
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def combine_notice_files_text(file_hash, input_dir, output_filename, file_title):
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"""Combine notice files in FILE_HASH and output a text version to OUTPUT_FILENAME."""
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SRC_DIR_STRIP_RE = re.compile(input_dir + "(/.*).txt")
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output_file = open(output_filename, "wb")
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print >> output_file, file_title
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for value in file_hash:
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print >> output_file, "============================================================"
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print >> output_file, "Notices for file(s):"
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for filename in value:
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print >> output_file, SRC_DIR_STRIP_RE.sub(r"\1", filename)
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print >> output_file, "------------------------------------------------------------"
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print >> output_file, open(value[0]).read()
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output_file.close()
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def main(args):
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txt_output_file = args[0]
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html_output_file = args[1]
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file_title = args[2]
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# Find all the notice files and md5 them
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input_dir = os.path.normpath(args[3])
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files_with_same_hash = defaultdict(list)
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for root, dir, files in os.walk(input_dir):
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for file in files:
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if file.endswith(".txt"):
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filename = os.path.join(root, file)
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file_md5sum = md5sum(filename)
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files_with_same_hash[file_md5sum].append(filename)
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filesets = [sorted(files_with_same_hash[md5]) for md5 in sorted(files_with_same_hash.keys())]
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print "Combining NOTICE files into HTML"
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combine_notice_files_html(filesets, input_dir, html_output_file)
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print "Combining NOTICE files into text"
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combine_notice_files_text(filesets, input_dir, txt_output_file, file_title)
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if __name__ == "__main__":
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main(args)
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