/usr/bin/amo-changelog is in mozilla-devscripts 0.47.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Copyright (c) 2014, Jakub Wilk <jwilk@debian.org>
# Copyright (c) 2014, Ximin Luo <infinity0@pwned.gg>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
from __future__ import print_function
import argparse
import os
import re
import subprocess
import sys
import urllib2
import xml.etree.cElementTree as etree
URL_TEMPLATE = "https://addons.mozilla.org/en-US/addon/{ext}/versions/format:rss"
OUTGOING_HREF = re.compile(r'href="https?://outgoing\.mozilla\.org/v\d+/\w+/(.+?)"')
HTML_HEAD = "<html>\n<head><title>{title}</title></head>\n<body>\n"
HTML_FOOT = "</body>\n</html>"
def fix_outgoing_href(match):
return 'href="%s"' % urllib2.unquote(match.group(1))
def convert_rss_to_html(first, source, target):
elements = etree.iterparse(source)
next_url = None
# header if first page
if first:
element = next(elements)[1]
while element.tag != "title":
element = next(elements)[1]
print(HTML_HEAD.format(title=element.text), file=target)
# items, rel
for _, element in elements:
if element.tag == "{http://www.w3.org/2005/Atom}link":
if element.attrib["rel"] == "next":
next_url = element.attrib["href"]
continue
if element.tag != "item":
continue
title = element.find("title").text.encode("utf-8")
print("<h2>%s</h2>" % title, file=target)
descel = element.find("description")
if descel is not None and descel.text:
desc = descel.text.rstrip("\n").encode("utf-8")
# process manual line breaks, e.g. adblock-plus
desc = desc.replace("\n", "\n<br/>").replace("<br/>\n", "<br/> \n")
# strip outgoing redirect
desc = OUTGOING_HREF.sub(fix_outgoing_href, desc)
print(desc, file=target)
else:
print("[no description]", file=target)
print("", file=target)
# footer if last page
if not next_url:
print(HTML_FOOT, file=target)
return next_url
def which(cmd):
path = os.environ.get("PATH", os.defpath).split(os.pathsep)
for dir in path:
name = os.path.join(dir, cmd)
if (os.path.exists(name) and os.access(name, os.F_OK | os.X_OK)
and not os.path.isdir(name)):
return name
return None
def try_external_write(out, args, **kwargs):
prog = args[0]
if not which(prog):
print("failed to write %s: program not found: %s" % (out, prog), file=sys.stderr)
return False
try:
subprocess.check_call(args, **kwargs)
print("wrote %s" % out, file=sys.stderr)
return True
except Exception as e:
print("failed to write %s: %s" % (out, e), file=sys.stderr)
return False
def main():
parser = argparse.ArgumentParser(
description="Fetch Version History of an addon from the Mozilla "
"Extensions website and convert it into a human-readable format.")
parser.add_argument("extension",
help="Extension short-name, as used on addons.mozilla.org.")
parser.add_argument("-f", "--html-file",
metavar="FILE", default="debian/upstream/changelog.html",
help="File to write to. Default: %(default)s.")
parser.add_argument("-p", "--plain-format", metavar="FORMAT",
choices=["text", "markdown", "rst"], default="none",
help="Generate a human-readable form of the changelog in the file "
"without the .html extension, using an external program. Possible "
"options are text (uses lynx(1)), markdown (pandoc(1)), or rst "
"(pandoc(1)). Default: %(default)s.")
options = parser.parse_args()
progname = os.path.basename(sys.argv[0])
html_file = options.html_file
if not html_file.endswith(".html"):
print("%s: Output filename must end with .html: %s" %
(progname, html_file), file=sys.stderr)
return 1
plain_file = html_file[:-5]
try:
with open(html_file, "w") as target:
url = URL_TEMPLATE.format(ext=options.extension)
first = True
while url:
try:
source = urllib2.urlopen(url)
except urllib2.HTTPError as error:
print("%s: For extension '%s', error fetching '%s': %s" %
(progname, options.extension, url, error), file=sys.stderr)
raise
try:
url = convert_rss_to_html(first, source, target)
first = False
finally:
source.close()
print("wrote %s" % html_file, file=sys.stderr)
except Exception as e:
print("failed to write %s: %s" % (html_file, e), file=sys.stderr)
#os.remove(html_file)
return 1
if options.plain_format == "text":
with open(plain_file, "w") as target:
if not try_external_write(plain_file,
["lynx", "-dump", "-list_inline", "-width=84", html_file], stdout=target):
#os.remove(plain_file)
return 1
else:
# 2 space indent is a bit more reasonable than lynx's 3 default
# width=84 above (3*2-2) effectively cancels the right margin
subprocess.call(["sed", "-i", "-e", "s/^ / /g", plain_file])
elif options.plain_format == "markdown":
if not try_external_write(plain_file,
["pandoc", "-i", html_file, "--columns=79", "-wmarkdown", "-o", plain_file]):
return 1
elif options.plain_format == "rst":
if not try_external_write(plain_file,
["pandoc", "-i", html_file, "--columns=79", "-wrst", "-o", plain_file]):
return 1
else:
# work around https://github.com/jgm/pandoc/issues/1656
# by adding two spaces to all line-block continuation lines
subprocess.call(["sed", "-i", "-r",
"-e", r"/^\|/,/^ |^$/{s/^([^ |])/ \1/g}", plain_file])
return 0
if __name__ == "__main__":
sys.exit(main())
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