273 lines
7.8 KiB
Python
Executable File
273 lines
7.8 KiB
Python
Executable File
#!/usr/bin/env python
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import os
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import sys
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import re
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import urllib
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from tempfile import mkstemp
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import tarfile
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import gzip
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import logging
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import shutil
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from difflib import unified_diff
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from portage.exception import AmbiguousPackageName
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from gentoolkit.query import Query
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from BeautifulSoup import BeautifulSoup, SoupStrainer
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logger = logging.getLogger(__name__)
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# From portage-janitor
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def guess_indent_values(before):
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rindent = -1
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indent = -1
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tab = False
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def guess_for_tags(tags):
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for tag in tags:
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for i in [0, 2, 4, 6, 8, 12, 16]:
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if '\n%s<%s' % (' ' * i, tag) in before:
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return i, False
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for i in [0, 1, 2]:
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if '\n%s<%s' % ('\t' * i, tag) in before:
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return i, True
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return -1, False
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rindent, tab = guess_for_tags(
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['herd', 'maintainer', 'longdescription', 'use', 'upstream']
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)
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if rindent == -1:
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rindent = 2
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rindent_str = ('\t' if tab else ' ') * rindent
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indent, tab = guess_for_tags(['watch', 'name', 'email'])
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if indent == -1:
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indent = rindent * 2 if rindent else 4
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if rindent and rindent_str == '\t':
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tab = True
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indent_str = ('\t' if tab else ' ') * indent
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return rindent_str, indent_str
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def get_watch_data(package):
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deb_url, deb_type = get_deb_url(package.name)
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if deb_type == "source":
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return handle_source(deb_url)
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if deb_type == "diff":
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return handle_diff(deb_url)
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def handle_diff(deb_url):
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_, temp_deb = mkstemp()
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logger.info(" Downloading debian diff %s...", deb_url)
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urllib.urlretrieve(deb_url, temp_deb)
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watch_data = ""
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fp = gzip.open(temp_deb, 'rb')
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for line in fp:
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if re.match(r"\+\+\+ .+?/debian/watch", line):
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fp.readline() # diff lines, don't care
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cur_line = fp.readline()
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while cur_line.startswith("+"):
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watch_data += cur_line[1:]
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cur_line = fp.readline()
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fp.close()
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os.unlink(temp_deb)
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return watch_data
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def handle_source(deb_url):
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_, temp_deb = mkstemp()
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temp_dir = os.path.dirname(temp_deb)
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logger.info(" Downloading debian source %s...", deb_url)
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urllib.urlretrieve(deb_url, temp_deb)
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tar = tarfile.open(temp_deb)
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watch_data = None
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try:
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tar.extract("debian/watch", temp_dir)
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except KeyError:
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pass
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else:
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debian_path = os.path.join(temp_dir, "debian")
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watch_path = os.path.join(debian_path, "watch")
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watch_data = open(os.path.join(watch_path)).read()
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shutil.rmtree(debian_path)
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os.unlink(temp_deb)
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return watch_data
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def get_deb_url(name):
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deb_url = None
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deb_type = None
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while not deb_url:
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url = "http://packages.debian.org/source/unstable/%s" % name
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opened = urllib.urlopen(url)
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content = opened.read()
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for link in BeautifulSoup(content, parseOnlyThese=SoupStrainer("a")):
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if re.match("[^\s]+\.debian\.tar\.(?:gz|bz2)", link.text):
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deb_url = link["href"]
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deb_type = "source"
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break
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if re.match("[^\s]+\.diff\.gz", link.text):
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deb_url = link["href"]
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deb_type = "diff"
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break
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if not deb_url:
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logger.error(" Cannot get package from %s" % url)
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name = raw_input(" Package name in Debian: ")
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return deb_url, deb_type
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def patch_metadata(package, watch_data, diff=False):
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logger.info(" Patching metadata file")
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metadata_path = package.metadata.metadata_path
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with open(metadata_path) as fp:
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original = fp.read()
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rindent, indent = guess_indent_values(original)
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data = original
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# clean watch_data
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watch_data = "\n".join([line for line in watch_data.split("\n")
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if not line.startswith("#")]) # comments
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watch_data = watch_data.replace("\\\n", "") # remove backslashes
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watch_tags = []
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for watch_line in watch_data.split("\n"): # there can be multiple lines
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watch_line = " ".join(watch_line.split()) # remove extra spaces and \n
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version_parse = re.match("version=(\d+?)", watch_line)
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if version_parse:
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version = version_parse.group(1)
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continue
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if not watch_line: # skip empty lines
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continue
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# parse watch_line
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result = re.match(
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r'(?:opts=(?:"([^"]+?)"|([^\s]+?)) )?(.*)',
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watch_line
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)
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opts_quote, opts, url = result.groups()
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opts = opts_quote or opts
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if opts:
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# clean opts, skip useless ones
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valid = ("uversionmangle", "versionmangle", "downloadurlmangle")
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cleaned_opts = []
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for opt in opts.split(","):
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opt_name, opt_value = opt.split("=", 1)
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if opt_name in valid:
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if opt_name == "uversionmangle": opt_name = "versionmangle"
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cleaned_opts.append('%s="%s"' % (opt_name, opt_value))
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opts = " ".join(cleaned_opts)
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# clean url from useless stuff. Just keep <base> [<filepattern>]
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url_search = re.search(r"^([^\s]+)(?: ([^\s]*\([^\s]+\)[^\s]*))?", url)
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url = " ".join([x for x in url_search.groups() if x is not None])
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if opts:
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watch_tag = '%s<watch version="%s" %s>%s</watch>' % \
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(indent, version, opts, url)
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else:
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watch_tag = '%s<watch version="%s">%s</watch>' % \
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(indent, version, url)
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watch_tags.append(watch_tag)
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watch_tags = "\n".join(watch_tags)
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if '<upstream>' in data:
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data = data.replace('<upstream>', '<upstream>\n%s' % watch_tags, 1)
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else:
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rep = '%s<upstream>\n%s\n%s</upstream>\n</pkgmetadata>' % \
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(rindent, watch_tags, rindent)
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data = data.replace('</pkgmetadata>', rep, 1)
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if not diff:
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return data
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else:
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# Generate clean a/category/package/metadata.xml path
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n = metadata_path.find(package.category)
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if n != -1:
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metadata_path = metadata_path[n:]
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res = unified_diff(
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original.splitlines(True),
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data.splitlines(True),
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fromfile=os.path.join('a/', metadata_path),
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tofile=os.path.join('b/', metadata_path),
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)
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return "".join([x for x in res])
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def process_package(query, diff=False):
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try:
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matches = Query(query).smart_find(
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in_installed=True,
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in_porttree=True,
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in_overlay=True,
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include_masked=True,
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show_progress=False,
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no_matches_fatal=False,
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)
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except AmbiguousPackageName:
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logger.error(" Ambiguous package name")
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return None
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if len(matches) == 0:
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logger.error(" Package not found")
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return None
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matches = sorted(matches)
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package = matches.pop()
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if '9999' in package.version and len(matches) > 0:
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package = matches.pop()
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watch_data = get_watch_data(package)
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if watch_data is None:
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logger.error(" No watch file found")
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else:
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return patch_metadata(package, watch_data, diff=diff)
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def main():
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import optparse
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p = optparse.OptionParser(
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usage="usage: %prog <package> [<package> [...]]",
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)
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p.add_option('-d', '--diff', action="store_true", dest="diff",
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default=False,
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help="Outputs a diff")
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opts, packages = p.parse_args()
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logging.basicConfig(stream=sys.stderr, level=logging.INFO,
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format='%(message)s')
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for package in packages:
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logger.info("Processing %s..." % package)
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result = process_package(package, opts.diff)
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if result:
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sys.stdout.write(result)
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if __name__ == "__main__":
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main()
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