mirror of
https://gitlab.winehq.org/wine/wine-staging.git
synced 2024-11-21 16:46:54 -08:00
626 lines
24 KiB
Python
Executable File
626 lines
24 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Automatic patch dependency checker and Makefile/README.md generator.
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#
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# Copyright (C) 2014 Sebastian Lackner
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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#
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from xml.dom import minidom
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import contextlib
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import hashlib
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import itertools
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import multiprocessing
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import os
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import patchutils
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import pickle
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import re
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import subprocess
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import sys
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import textwrap
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import urllib
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# Cached information to speed up patch dependency checks
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latest_wine_commit = None
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cached_patch_result = {}
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cached_original_src = {}
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class config(object):
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path_depcache = ".depcache"
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path_srccache = ".srccache"
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path_patches = "patches"
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path_changelog = "debian/changelog"
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path_wine = "debian/tools/wine"
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path_template_Makefile = "debian/tools/Makefile.in"
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path_Makefile = "patches/Makefile"
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path_README_md = "README.md"
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path_template_README_md = "debian/tools/README.md.in"
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path_DEVELOPER_md = "DEVELOPER.md"
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path_template_DEVELOPER_md = "debian/tools/DEVELOPER.md.in"
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class PatchUpdaterError(RuntimeError):
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"""Failed to update patches."""
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pass
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class AuthorInfo(object):
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def __init__(self):
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self.author = ""
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self.subject = ""
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self.revision = ""
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class PatchSet(object):
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def __init__(self, name):
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self.name = name
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self.authors = []
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self.fixes = []
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self.changes = []
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self.files = []
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self.patches = []
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self.modified_files = set()
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self.depends = set()
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self.verify_depends = set()
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self.verify_time = None
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def _pairs(a):
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"""Iterate over all pairs of elements contained in the list a."""
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for i, j in enumerate(a):
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for k in a[i+1:]:
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yield (j, k)
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def _load_dict(filename):
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"""Load a Python dictionary object from a file."""
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try:
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with open(filename) as fp:
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return pickle.load(fp)
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except IOError:
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return {}
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def _save_dict(filename, value):
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"""Save a Python dictionary object to a file."""
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with open(filename, "wb") as fp:
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pickle.dump(value, fp, pickle.HIGHEST_PROTOCOL)
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def _winebugs_query_short_desc(bugids):
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"""Query short_desc from multiple wine bugzilla bugs at the same time."""
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bugids = list(set(bugids)) # Remove duplicates and convert to fixed order
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if len(bugids) == 0: return {}
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# Query bugzilla
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url = "http://bugs.winehq.org/show_bug.cgi?%s&ctype=xml&field=short_desc" % \
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"&".join(["id=%d" % bugid for bugid in bugids])
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with contextlib.closing(urllib.urlopen(url)) as fp:
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data = minidom.parseString(fp.read())
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# convert xml in a dictionary containing all bugs we found
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result = {}
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for element in data.getElementsByTagName('bug_id'):
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bugids.remove(int(element.firstChild.data))
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for bugid, element in zip(bugids, data.getElementsByTagName('short_desc')):
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result[bugid] = element.firstChild.data
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return result
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# Read information from changelog
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def _read_changelog():
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with open(config.path_changelog) as fp:
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for line in fp:
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r = re.match("^([a-zA-Z0-9][^(]*)\((.*)\) ([^;]*)", line)
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if r: yield (r.group(1).strip(), r.group(2).strip(), r.group(3).strip())
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# Get version number of the latest stable release
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def _stable_compholio_version():
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for package, version, distro in _read_changelog():
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if distro.lower() != "unreleased":
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return version
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# Get latest wine commit
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def _latest_wine_commit():
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if not os.path.isdir(config.path_wine):
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raise PatchUpdaterError("Please create a symlink to the wine repository in %s" % config.path_wine)
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commit = subprocess.check_output(["git", "rev-parse", "origin/master"], cwd=config.path_wine).strip()
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assert len(commit) == 40
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return commit
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def enum_directories(revision, path):
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"""Enumerate all subdirectories of 'path' at a specific revision."""
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dirs = []
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if path[0:2] == "./":
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path = path[2:]
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elif path[0] == "/":
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raise RuntimeError("Expected relative path, not an absolute path")
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if revision is None:
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for name in os.listdir(path):
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if name in [".", ".."]: continue
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subdirectory = os.path.join(path, name)
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if not os.path.isdir(subdirectory):
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continue
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dirs.append((name, subdirectory))
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else:
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filename = "%s:%s" % (revision, path)
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try:
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with open(os.devnull, 'w') as devnull:
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content = subprocess.check_output(["git", "show", filename], stderr=devnull)
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except subprocess.CalledProcessError as e:
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if e.returncode != 128: raise
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return [] # ignore error
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lines = content.split("\n")
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if not lines[0].startswith("tree ") or lines[1] != "":
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raise RuntimeError("Unexpected output from 'git show %s'" % filename)
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for name in lines[2:]:
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if name == "" or name[-1] != "/": continue
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name = name[:-1]
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dirs.append((name, os.path.join(path, name)))
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return dirs
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def read_definition(revision, filename, name_to_id):
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"""Read a definition file and return information as tuple (authors, depends, fixes)."""
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filename = os.path.join(filename, "definition")
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if revision is None:
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with open(filename) as fp:
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content = fp.read()
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else:
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filename = "%s:%s" % (revision, filename)
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try:
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with open(os.devnull, 'w') as devnull:
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content = subprocess.check_output(["git", "show", filename], stderr=devnull)
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except CalledProcessError:
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raise IOError("Failed to load %s" % filename)
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authors = []
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depends = set()
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fixes = []
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info = AuthorInfo()
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for line in content.split("\n"):
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if line.startswith("#"):
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continue
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tmp = line.split(":", 1)
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if len(tmp) != 2:
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if len(info.author) and len(info.subject):
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authors.append(info)
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info = AuthorInfo()
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continue
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key, val = tmp[0].lower(), tmp[1].strip()
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if key == "author":
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if len(info.author): info.author += ", "
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info.author += val
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elif key == "subject" or key == "title":
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if len(info.subject): info.subject += " "
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info.subject += val
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elif key == "revision":
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if len(info.revision): info.revision += ", "
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info.revision += val
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elif key == "depends":
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if name_to_id is not None:
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if not name_to_id.has_key(val):
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raise PatchUpdaterError("Definition file %s references unknown dependency %s" % (filename, val))
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depends.add(name_to_id[val])
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elif key == "fixes":
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r = re.match("^[0-9]+$", val)
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if r:
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fixes.append((int(val), None))
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continue
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r = re.match("^\\[ *([0-9]+) *\\](.*)$", val)
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if r:
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fixes.append((int(r.group(1)), r.group(2).strip()))
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continue
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fixes.append((None, val))
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else:
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print "WARNING: Ignoring unknown command in definition file %s: %s" % (deffile, line)
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if len(info.author) and len(info.subject):
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authors.append(info)
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return authors, depends, fixes
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def read_patchset(revision = None):
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"""Read information about all patchsets for a specific revision."""
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unique_id = itertools.count()
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all_patches = {}
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name_to_id = {}
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# Read in sorted order (to ensure created Makefile doesn't change too much)
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for name, subdirectory in sorted(enum_directories(revision, config.path_patches)):
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patch = PatchSet(name)
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if revision is None:
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# If its the latest revision, then request additional information
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if not os.path.isdir(subdirectory):
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raise RuntimeError("Unable to open directory %s" % subdirectory)
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# Enumerate .patch files in the given directory, enumerate individual patches and affected files
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for f in sorted(os.listdir(subdirectory)):
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if not f.endswith(".patch") or not os.path.isfile(os.path.join(subdirectory, f)):
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continue
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patch.files.append(f)
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for p in patchutils.read_patch(os.path.join(subdirectory, f)):
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patch.modified_files.add(p.modified_file)
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patch.patches.append(p)
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# No single patch within this directory, ignore it
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if len(patch.patches) == 0:
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del patch
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continue
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i = next(unique_id)
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all_patches[i] = patch
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name_to_id[name] = i
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# Now read the definition files in a second step
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for i, patch in all_patches.iteritems():
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try:
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patch.authors, patch.depends, patch.fixes = \
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read_definition(revision, os.path.join(config.path_patches, patch.name), name_to_id)
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except IOError:
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raise PatchUpaterError("Missing definition file for %s" % patch.name)
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return all_patches
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def causal_time_combine(a, b):
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"""Combines two timestamps into a new one."""
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return [max(a, b) for a, b in zip(a, b)]
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def causal_time_smaller(a, b):
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"""Checks if timestamp a is smaller than timestamp b."""
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return all([i <= j for i, j in zip(a,b)]) and any([i < j for i, j in zip(a,b)])
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def causal_time_relation(all_patches, indices):
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"""Checks if the dependencies of patches are compatible with a specific apply order."""
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for i, j in _pairs(indices):
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if causal_time_smaller(all_patches[j].verify_time, all_patches[i].verify_time):
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return False
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return True
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def causal_time_relation_any(all_patches, indices):
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"""Similar to causal_time_relation(), but also check all possible permutations of indices."""
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for i, j in _pairs(indices):
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if not (causal_time_smaller(all_patches[i].verify_time, all_patches[j].verify_time) or \
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causal_time_smaller(all_patches[j].verify_time, all_patches[i].verify_time)):
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return False
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return True
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def causal_time_permutations(all_patches, indices, filename):
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"""Iterate over all possible permutations of patches affecting
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a specific file, which are compatible with dependencies."""
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for permutation in itertools.permutations(indices):
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if causal_time_relation(all_patches, permutation):
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selected_patches = []
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for i in permutation:
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selected_patches += [patch for patch in all_patches[i].patches if patch.modified_file == filename]
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yield selected_patches
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def contains_binary_patch(all_patches, indices, filename):
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"""Checks if any patch with given indices affecting filename is a binary patch."""
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for i in indices:
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for patch in all_patches[i].patches:
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if patch.modified_file == filename and patch.is_binary():
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return True
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return False
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def get_wine_file(filename, force=False):
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"""Return the hash and optionally the content of a file."""
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# If we're not forced, we try to save time and only lookup the cached checksum
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entry = "%s:%s" % (latest_wine_commit, filename)
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if not force and cached_original_src.has_key(entry):
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return (cached_original_src[entry], None)
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# Grab original file from the wine git repository
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try:
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with open(os.devnull, 'w') as devnull:
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content = subprocess.check_output(["git", "show", entry], cwd=config.path_wine, stderr=devnull)
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except subprocess.CalledProcessError as e:
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if e.returncode != 128: raise
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content = ""
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content_hash = hashlib.sha256(content).digest()
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cached_original_src[entry] = content_hash
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return (content_hash, content)
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def verify_patch_order(all_patches, indices, filename):
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"""Checks if the dependencies are defined correctly by applying on the patches on a copy from the git tree."""
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global cached_patch_result
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# If one of patches is a binary patch, then we cannot / won't verify it - require dependencies in this case
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if contains_binary_patch(all_patches, indices, filename):
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if not causal_time_relation_any(all_patches, indices):
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raise PatchUpdaterError("Because of binary patch modifying file %s the following patches need explicit dependencies: %s" %
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(filename, ", ".join([all_patches[i].name for i in indices])))
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return
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# Get at least the checksum of the original file
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original_content_hash, original_content = get_wine_file(filename)
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# Check for possible ways to apply the patch
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failed_to_apply = False
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last_result_hash = None
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for patches in causal_time_permutations(all_patches, indices, filename):
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# Calculate unique hash based on the original content and the order in which the patches are applied
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m = hashlib.sha256()
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m.update(original_content_hash)
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for patch in patches:
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m.update(patch.hash())
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unique_hash = m.digest()
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# Fast path -> we know that it applies properly
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if cached_patch_result.has_key(unique_hash):
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result_hash = cached_patch_result[unique_hash]
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else:
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# Now really get the file, if we don't have it yet
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if original_content is None:
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original_content_hash, original_content = get_wine_file(filename, force=True)
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# Apply the patches (without fuzz)
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try:
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content = patchutils.apply_patch(original_content, patches, fuzz=0)
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except patchutils.PatchApplyError:
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if last_result_hash is not None: break
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failed_to_apply = True
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continue
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# Get hash of resulting file and add to cache
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result_hash = hashlib.sha256(content).digest()
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cached_patch_result[unique_hash] = result_hash
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if last_result_hash is None:
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last_result_hash = result_hash
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if failed_to_apply: break
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elif last_result_hash != result_hash:
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last_result_hash = None
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break
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# If something failed, then show the appropriate error message.
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if failed_to_apply and last_result_hash is None:
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raise PatchUpdaterError("Changes to file %s don't apply on git source tree: %s" %
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(filename, ", ".join([all_patches[i].name for i in indices])))
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elif failed_to_apply or last_result_hash is None:
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raise PatchUpdaterError("Depending on the order some changes to file %s dont't apply / lead to different results: %s" %
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(filename, ", ".join([all_patches[i].name for i in indices])))
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else:
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assert len(last_result_hash) == 32
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def verify_dependencies(all_patches):
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"""Resolve dependencies, and afterwards run verify_patch_order() to check if everything applies properly."""
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def _load_patch_cache():
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"""Load dictionary for cached patch dependency tests into cached_patch_result."""
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global cached_patch_result
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global cached_original_src
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cached_patch_result = _load_dict(config.path_depcache)
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cached_original_src = _load_dict(config.path_srccache)
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def _save_patch_cache():
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"""Save dictionary for cached patch depdency tests."""
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_save_dict(config.path_depcache, cached_patch_result)
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_save_dict(config.path_srccache, cached_original_src)
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max_patches = max(all_patches.keys()) + 1
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for i, patch in all_patches.iteritems():
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patch.verify_depends = set(patch.depends)
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patch.verify_time = [0]*max_patches
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# Check for circular dependencies and perform modified vector clock algorithm
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patches = dict(all_patches)
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while len(patches):
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to_delete = []
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for i, patch in patches.iteritems():
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if len(patch.verify_depends) == 0:
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patch.verify_time[i] += 1
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to_delete.append(i)
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if len(to_delete) == 0:
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raise PatchUpdaterError("Circular dependency in set of patches: %s" %
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", ".join([patch.name for i, patch in patches.iteritems()]))
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for j in to_delete:
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for i, patch in patches.iteritems():
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if i != j and j in patch.verify_depends:
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patch.verify_time = causal_time_combine(patch.verify_time, patches[j].verify_time)
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patch.verify_depends.remove(j)
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del patches[j]
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# Find out which files are modified by multiple patches
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modified_files = {}
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for i, patch in all_patches.iteritems():
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for f in patch.modified_files:
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if f not in modified_files:
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modified_files[f] = []
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modified_files[f].append(i)
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# Check if patches always apply correctly
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_load_patch_cache()
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try:
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for f, indices in modified_files.iteritems():
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verify_patch_order(all_patches, indices, f)
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finally:
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_save_patch_cache()
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def generate_makefile(all_patches):
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"""Generate Makefile for a specific set of patches."""
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with open(config.path_template_Makefile) as template_fp:
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template = template_fp.read()
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with open(config.path_Makefile, "w") as fp:
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fp.write(template.format(patchlist="\t" + " \\\n\t".join(["%s.ok" % patch.name for i, patch in all_patches.iteritems()])))
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for i, patch in all_patches.iteritems():
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fp.write("# Patchset %s\n" % patch.name)
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fp.write("# |\n")
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fp.write("# | Included patches:\n")
|
|
|
|
# List all patches and their corresponding authors
|
|
for info in patch.authors:
|
|
if not info.subject: continue
|
|
s = []
|
|
if info.revision and info.revision != "1": s.append("rev %s" % info.revision)
|
|
if info.author: s.append("by %s" % info.author)
|
|
if len(s): s = " [%s]" % ", ".join(s)
|
|
fp.write("# | *\t%s\n" % "\n# | \t".join(textwrap.wrap(info.subject + s, 120)))
|
|
fp.write("# |\n")
|
|
|
|
# List all bugs fixed by this patchset
|
|
if any([bugid is not None for bugid, bugname in patch.fixes]):
|
|
fp.write("# | This patchset fixes the following Wine bugs:\n")
|
|
for bugid, bugname in patch.fixes:
|
|
if bugid is not None:
|
|
fp.write("# | *\t%s\n" % "\n# | \t".join(textwrap.wrap("[#%d] %s" % (bugid, bugname), 120)))
|
|
fp.write("# |\n")
|
|
|
|
# List all modified files
|
|
fp.write("# | Modified files: \n")
|
|
fp.write("# | *\t%s\n" % "\n# | \t".join(textwrap.wrap(", ".join(sorted(patch.modified_files)), 120)))
|
|
fp.write("# |\n")
|
|
|
|
# Generate dependencies and code to apply patches
|
|
fp.write(".INTERMEDIATE: %s.ok\n" % patch.name)
|
|
depends = " ".join([""] + ["%s.ok" % all_patches[d].name for d in patch.depends]) if len(patch.depends) else ""
|
|
fp.write("%s.ok:%s\n" % (patch.name, depends))
|
|
for f in patch.files:
|
|
fp.write("\t$(call APPLY_FILE,%s)\n" % os.path.join(patch.name, f))
|
|
|
|
# Create *.ok file (used to generate patchlist)
|
|
if len(patch.authors):
|
|
fp.write("\t@( \\\n")
|
|
for info in patch.authors:
|
|
if not info.subject: continue
|
|
s = info.subject.replace("\\", "\\\\\\\\").replace("\"", "\\\\\"")
|
|
if info.revision and info.revision != "1": s += " [rev %s]" % info.revision
|
|
fp.write("\t\techo '+ { \"%s\", \"%s\", \"%s\" },'; \\\n" % (patch.name, info.author, s))
|
|
fp.write("\t) > %s.ok\n" % patch.name)
|
|
else:
|
|
fp.write("\ttouch %s.ok\n" % patch.name)
|
|
fp.write("\n");
|
|
|
|
def generate_markdown(all_patches, stable_patches, stable_compholio_version):
|
|
"""Generate README.md and DEVELOPER.md including information about specific patches and bugfixes."""
|
|
|
|
def _format_bug(mode, bugid, bugname):
|
|
if bugid is not None:
|
|
short_desc = bug_short_desc[bugid]
|
|
if bugname is None: bugname = short_desc
|
|
if mode < 0: bugname = "~~%s~~" % bugname
|
|
if bugid is None: return "* %s" % bugname
|
|
return "* %s ([Wine Bug #%d](http://bugs.winehq.org/show_bug.cgi?id=%d \"%s\"))" % \
|
|
(bugname, bugid, bugid, short_desc.replace("\\", "\\\\").replace("\"", "\\\""))
|
|
|
|
all_bugids = set()
|
|
all_fixes = {}
|
|
|
|
# Get fixes for current version
|
|
for i, patch in all_patches.iteritems():
|
|
for bugid, bugname in patch.fixes:
|
|
if bugid is not None: all_bugids.add(bugid)
|
|
key = bugid if bugid is not None else bugname
|
|
all_fixes[key] = [1, bugid, bugname]
|
|
|
|
# Compare with fixes for latest stable version
|
|
for i, patch in stable_patches.iteritems():
|
|
for bugid, bugname in patch.fixes:
|
|
if bugid is not None: all_bugids.add(bugid)
|
|
key = bugid if bugid is not None else bugname
|
|
if all_fixes.has_key(key):
|
|
all_fixes[key][0] = 0
|
|
else:
|
|
all_fixes[key] = [-1, bugid, bugname]
|
|
|
|
# Generate lists for all new and old fixes
|
|
new_fixes = [(mode, bugid, bugname) for dummy, (mode, bugid, bugname) in
|
|
all_fixes.iteritems() if mode > 0]
|
|
old_fixes = [(mode, bugid, bugname) for dummy, (mode, bugid, bugname) in
|
|
all_fixes.iteritems() if mode <= 0]
|
|
|
|
# List of old fixes is not available when releasing a new version
|
|
if len(old_fixes) == 0:
|
|
old_fixes = new_fixes
|
|
new_fixes = []
|
|
|
|
# Query information from bugzilla
|
|
bug_short_desc = _winebugs_query_short_desc(all_bugids)
|
|
|
|
# Generate information for current version
|
|
lines = []
|
|
if len(new_fixes):
|
|
lines.append("**Bugfixes and features included in the next upcoming release [%d]:**" % len(new_fixes))
|
|
lines.append("")
|
|
for mode, bugid, bugname in sorted(new_fixes, key=lambda x: x[2]):
|
|
lines.append(_format_bug(mode, bugid, bugname))
|
|
lines.append("")
|
|
lines.append("")
|
|
lines.append("**Bugs fixed in Wine-Compholio %s [%d]:**" % (stable_compholio_version, len(old_fixes)))
|
|
lines.append("")
|
|
for mode, bugid, bugname in sorted(old_fixes, key=lambda x: x[2]):
|
|
lines.append(_format_bug(mode, bugid, bugname))
|
|
|
|
# Update README.md
|
|
with open(config.path_template_README_md) as template_fp:
|
|
template = template_fp.read()
|
|
with open(config.path_README_md, "w") as fp:
|
|
fp.write(template.format(fixes="\n".join(lines)))
|
|
|
|
# Update DEVELOPER.md
|
|
with open(config.path_template_DEVELOPER_md) as template_fp:
|
|
template = template_fp.read()
|
|
with open(config.path_DEVELOPER_md, "w") as fp:
|
|
fp.write(template.format(version=stable_compholio_version))
|
|
|
|
if __name__ == "__main__":
|
|
try:
|
|
|
|
# Get information about Wine and Compholio version
|
|
latest_wine_commit = _latest_wine_commit()
|
|
stable_compholio_version = _stable_compholio_version()
|
|
|
|
# Read current and stable patches
|
|
all_patches = read_patchset()
|
|
stable_patches = read_patchset(revision="v%s" % stable_compholio_version)
|
|
|
|
# Check dependencies
|
|
verify_dependencies(all_patches)
|
|
|
|
# Update Makefile, README.md and DEVELOPER.md
|
|
generate_makefile(all_patches)
|
|
generate_markdown(all_patches, stable_patches, stable_compholio_version)
|
|
|
|
except PatchUpdaterError as e:
|
|
print ""
|
|
print "ERROR: %s" % e
|
|
print ""
|
|
exit(1)
|