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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
"""jarmaker.py provides a python class to package up chrome content by
processing jar.mn files.
See the documentation for jar.mn on MDC for further details on the format.
"""
import errno
import io
import logging
import os
import re
import sys
from time import localtime
import mozpack.path as mozpath
import six
from mozpack.files import FileFinder
from MozZipFile import ZipFile
from six import BytesIO
from mozbuild.action.buildlist import addEntriesToListFile
from mozbuild.preprocessor import Preprocessor
from mozbuild.util import ensure_bytes
if sys.platform == "win32":
from ctypes import WinError, windll
CreateHardLink = windll.kernel32.CreateHardLinkA
__all__ = ["JarMaker"]
class ZipEntry(object):
"""Helper class for jar output.
This class defines a simple file-like object for a zipfile.ZipEntry
so that we can consecutively write to it and then close it.
This methods hooks into ZipFile.writestr on close().
"""
def __init__(self, name, zipfile):
self._zipfile = zipfile
self._name = name
self._inner = BytesIO()
def write(self, content):
"""Append the given content to this zip entry"""
self._inner.write(ensure_bytes(content))
return
def close(self):
"""The close method writes the content back to the zip file."""
self._zipfile.writestr(self._name, self._inner.getvalue())
def getModTime(aPath):
if not os.path.isfile(aPath):
return localtime(0)
mtime = os.stat(aPath).st_mtime
return localtime(mtime)
class JarManifestEntry(object):
def __init__(self, output, source, is_locale=False, preprocess=False):
self.output = output
self.source = source
self.is_locale = is_locale
self.preprocess = preprocess
class JarInfo(object):
def __init__(self, base_or_jarinfo, name=None):
if name is None:
assert isinstance(base_or_jarinfo, JarInfo)
self.base = base_or_jarinfo.base
self.name = base_or_jarinfo.name
else:
assert not isinstance(base_or_jarinfo, JarInfo)
self.base = base_or_jarinfo or ""
self.name = name
# For compatibility with existing jar.mn files, if there is no
# base, the jar name is under chrome/
if not self.base:
self.name = mozpath.join("chrome", self.name)
self.relativesrcdir = None
self.chrome_manifests = []
self.entries = []
class DeprecatedJarManifest(Exception):
pass
class JarManifestParser(object):
ignore = re.compile(r"\s*(#.*)?$")
jarline = re.compile(
r"""
(?:
(?:\[(?P<base>[\w\d.\-_\/{}@]+)\]\s*)? # optional [base/path]
(?P<jarfile>[\w\d.\-_\/{}]+)\.jar: # filename.jar:
|
(?:\s*(\#.*)?) # comment
)\s*$ # whitespaces
""",
re.VERBOSE,
)
relsrcline = re.compile(r"relativesrcdir\s+(?P<relativesrcdir>.+?):")
regline = re.compile(r"%\s+(.*)$")
entryre = r"(?P<optPreprocess>\*)?(?P<optOverwrite>\+?)\s+"
entryline = re.compile(
entryre
+ (
r"(?P<output>[\w\d.\-\_\/+@]+)\s*"
r"(\((?P<locale>%?)(?P<source>[\w\d.\-\_\/@*]+)\))?\s*$"
)
)
def __init__(self):
self._current_jar = None
self._jars = []
def write(self, line):
# A Preprocessor instance feeds the parser through calls to this method.
# Ignore comments and empty lines
if self.ignore.match(line):
return
# A jar manifest file can declare several different sections, each of
# which applies to a given "jar file". Each of those sections starts
# with "<name>.jar:", in which case the path is assumed relative to
# a "chrome" directory, or "[<base/path>] <subpath/name>.jar:", where
# a base directory is given (usually pointing at the root of the
# application or addon) and the jar path is given relative to the base
# directory.
if self._current_jar is None:
m = self.jarline.match(line)
if not m:
raise RuntimeError(line)
if m.group("jarfile"):
self._current_jar = JarInfo(m.group("base"), m.group("jarfile"))
self._jars.append(self._current_jar)
return
# Within each section, there can be three different types of entries:
# - indications of the relative source directory we pretend to be in
# when considering localization files, in the following form;
# "relativesrcdir <path>:"
m = self.relsrcline.match(line)
if m:
if self._current_jar.chrome_manifests or self._current_jar.entries:
self._current_jar = JarInfo(self._current_jar)
self._jars.append(self._current_jar)
self._current_jar.relativesrcdir = m.group("relativesrcdir")
return
# - chrome manifest entries, prefixed with "%".
m = self.regline.match(line)
if m:
rline = " ".join(m.group(1).split())
if rline not in self._current_jar.chrome_manifests:
self._current_jar.chrome_manifests.append(rline)
return
# - entries indicating files to be part of the given jar. They are
# formed thusly:
# "<dest_path>"
# or
# "<dest_path> (<source_path>)"
# The <dest_path> is where the file(s) will be put in the chrome jar.
# The <source_path> is where the file(s) can be found in the source
# directory. The <source_path> may start with a "%" for files part
# of a localization directory, in which case the "%" counts as the
# locale.
# Each entry can be prefixed with "*" for preprocessing.
m = self.entryline.match(line)
if m:
if m.group("optOverwrite"):
raise DeprecatedJarManifest('The "+" prefix is not supported anymore')
self._current_jar.entries.append(
JarManifestEntry(
m.group("output"),
m.group("source") or mozpath.basename(m.group("output")),
is_locale=bool(m.group("locale")),
preprocess=bool(m.group("optPreprocess")),
)
)
return
self._current_jar = None
self.write(line)
def __iter__(self):
return iter(self._jars)
class JarMaker(object):
"""JarMaker reads jar.mn files and process those into jar files or
flat directories, along with chrome.manifest files.
"""
def __init__(
self, outputFormat="flat", useJarfileManifest=True, useChromeManifest=False
):
self.outputFormat = outputFormat
self.useJarfileManifest = useJarfileManifest
self.useChromeManifest = useChromeManifest
self.pp = Preprocessor()
self.topsourcedir = None
self.sourcedirs = []
self.localedirs = None
self.l10nbase = None
self.relativesrcdir = None
self.rootManifestAppId = None
self._seen_output = set()
def getCommandLineParser(self):
"""Get a optparse.OptionParser for jarmaker.
This OptionParser has the options for jarmaker as well as
the options for the inner PreProcessor.
"""
# HACK, we need to unescape the string variables we get,
# the perl versions didn't grok strings right
p = self.pp.getCommandLineParser(unescapeDefines=True)
p.add_option(
"-f",
type="choice",
default="jar",
choices=("jar", "flat", "symlink"),
help="fileformat used for output",
metavar="[jar, flat, symlink]",
)
p.add_option("-v", action="store_true", dest="verbose", help="verbose output")
p.add_option("-q", action="store_false", dest="verbose", help="verbose output")
p.add_option(
"-e",
action="store_true",
help="create chrome.manifest instead of jarfile.manifest",
)
p.add_option(
"-s", type="string", action="append", default=[], help="source directory"
)
p.add_option("-t", type="string", help="top source directory")
p.add_option(
"-c",
"--l10n-src",
type="string",
action="append",
help="localization directory",
)
p.add_option(
"--l10n-base",
type="string",
action="store",
help="merged directory to be used for localization (requires relativesrcdir)",
)
p.add_option(
"--relativesrcdir",
type="string",
help="relativesrcdir to be used for localization",
)
p.add_option("-d", type="string", help="base directory")
p.add_option(
"--root-manifest-entry-appid",
type="string",
help="add an app id specific root chrome manifest entry.",
)
return p
def finalizeJar(
self, jardir, jarbase, jarname, chromebasepath, register, doZip=True
):
"""Helper method to write out the chrome registration entries to
jarfile.manifest or chrome.manifest, or both.
The actual file processing is done in updateManifest.
"""
# rewrite the manifest, if entries given
if not register:
return
chromeManifest = os.path.join(jardir, jarbase, "chrome.manifest")
if self.useJarfileManifest:
self.updateManifest(
os.path.join(jardir, jarbase, jarname + ".manifest"),
chromebasepath.format(""),
register,
)
if jarname != "chrome":
addEntriesToListFile(
chromeManifest, ["manifest {0}.manifest".format(jarname)]
)
if self.useChromeManifest:
chromebase = os.path.dirname(jarname) + "/"
self.updateManifest(
chromeManifest, chromebasepath.format(chromebase), register
)
# If requested, add a root chrome manifest entry (assumed to be in the parent directory
# of chromeManifest) with the application specific id. In cases where we're building
# lang packs, the root manifest must know about application sub directories.
if self.rootManifestAppId:
rootChromeManifest = os.path.join(
os.path.normpath(os.path.dirname(chromeManifest)),
"..",
"chrome.manifest",
)
rootChromeManifest = os.path.normpath(rootChromeManifest)
chromeDir = os.path.basename(
os.path.dirname(os.path.normpath(chromeManifest))
)
logging.info(
"adding '%s' entry to root chrome manifest appid=%s"
% (chromeDir, self.rootManifestAppId)
)
addEntriesToListFile(
rootChromeManifest,
[
"manifest %s/chrome.manifest application=%s"
% (chromeDir, self.rootManifestAppId)
],
)
def updateManifest(self, manifestPath, chromebasepath, register):
"""updateManifest replaces the % in the chrome registration entries
with the given chrome base path, and updates the given manifest file.
"""
myregister = dict.fromkeys(
map(lambda s: s.replace("%", chromebasepath), register)
)
addEntriesToListFile(manifestPath, six.iterkeys(myregister))
def makeJar(self, infile, jardir):
"""makeJar is the main entry point to JarMaker.
It takes the input file, the output directory, the source dirs and the
top source dir as argument, and optionally the l10n dirs.
"""
# making paths absolute, guess srcdir if file and add to sourcedirs
def _normpath(p):
return os.path.normpath(os.path.abspath(p))
self.topsourcedir = _normpath(self.topsourcedir)
self.sourcedirs = [_normpath(p) for p in self.sourcedirs]
if self.localedirs:
self.localedirs = [_normpath(p) for p in self.localedirs]
elif self.relativesrcdir:
self.localedirs = self.generateLocaleDirs(self.relativesrcdir)
if isinstance(infile, six.text_type):
logging.info("processing " + infile)
self.sourcedirs.append(_normpath(os.path.dirname(infile)))
pp = self.pp.clone()
pp.out = JarManifestParser()
pp.do_include(infile)
for info in pp.out:
self.processJarSection(info, jardir)
def generateLocaleDirs(self, relativesrcdir):
if os.path.basename(relativesrcdir) == "locales":
# strip locales
l10nrelsrcdir = os.path.dirname(relativesrcdir)
else:
l10nrelsrcdir = relativesrcdir
locdirs = []
# generate locales merge or en-US
if self.l10nbase:
locdirs.append(os.path.join(self.l10nbase, l10nrelsrcdir))
else:
# add en-US if it's not l10n
locdirs.append(os.path.join(self.topsourcedir, relativesrcdir, "en-US"))
return locdirs
def processJarSection(self, jarinfo, jardir):
"""Internal method called by makeJar to actually process a section
of a jar.mn file.
"""
# chromebasepath is used for chrome registration manifests
# {0} is getting replaced with chrome/ for chrome.manifest, and with
# an empty string for jarfile.manifest
chromebasepath = "{0}" + os.path.basename(jarinfo.name)
if self.outputFormat == "jar":
chromebasepath = "jar:" + chromebasepath + ".jar!"
chromebasepath += "/"
jarfile = os.path.join(jardir, jarinfo.base, jarinfo.name)
jf = None
if self.outputFormat == "jar":
# jar
jarfilepath = jarfile + ".jar"
try:
os.makedirs(os.path.dirname(jarfilepath))
except OSError as error:
if error.errno != errno.EEXIST:
raise
jf = ZipFile(jarfilepath, "a", lock=True)
outHelper = self.OutputHelper_jar(jf)
else:
outHelper = getattr(self, "OutputHelper_" + self.outputFormat)(jarfile)
if jarinfo.relativesrcdir:
self.localedirs = self.generateLocaleDirs(jarinfo.relativesrcdir)
for e in jarinfo.entries:
self._processEntryLine(e, outHelper, jf)
self.finalizeJar(
jardir, jarinfo.base, jarinfo.name, chromebasepath, jarinfo.chrome_manifests
)
if jf is not None:
jf.close()
def _processEntryLine(self, e, outHelper, jf):
out = e.output
src = e.source
# pick the right sourcedir -- l10n, topsrc or src
if e.is_locale:
# If the file is a Fluent l10n resource, we want to skip the
# 'en-US' fallbacking.
#
# To achieve that, we're testing if we have more than one localedir,
# and if the last of those has 'en-US' in it.
# If that's the case, we're removing the last one.
if (
e.source.endswith(".ftl")
and len(self.localedirs) > 1
and "en-US" in self.localedirs[-1]
):
src_base = self.localedirs[:-1]
else:
src_base = self.localedirs
elif src.startswith("/"):
# path/in/jar/file_name.xul (/path/in/sourcetree/file_name.xul)
# refers to a path relative to topsourcedir, use that as base
# and strip the leading '/'
src_base = [self.topsourcedir]
src = src[1:]
else:
# use srcdirs and the objdir (current working dir) for relative paths
src_base = self.sourcedirs + [os.getcwd()]
if "*" in src:
def _prefix(s):
for p in s.split("/"):
if "*" not in p:
yield p + "/"
prefix = "".join(_prefix(src))
emitted = set()
for _srcdir in src_base:
finder = FileFinder(_srcdir)
for path, _ in finder.find(src):
# If the path was already seen in one of the other source
# directories, skip it. That matches the non-wildcard case
# below, where we pick the first existing file.
reduced_path = path[len(prefix) :]
if reduced_path in emitted:
continue
emitted.add(reduced_path)
e = JarManifestEntry(
mozpath.join(out, reduced_path),
path,
is_locale=e.is_locale,
preprocess=e.preprocess,
)
self._processEntryLine(e, outHelper, jf)
return
# check if the source file exists
realsrc = None
for _srcdir in src_base:
if os.path.isfile(os.path.join(_srcdir, src)):
realsrc = os.path.join(_srcdir, src)
break
if realsrc is None:
if jf is not None:
jf.close()
raise RuntimeError(
'File "{0}" not found in {1}'.format(src, ", ".join(src_base))
)
if out in self._seen_output:
raise RuntimeError("%s already added" % out)
self._seen_output.add(out)
if e.preprocess:
outf = outHelper.getOutput(out, mode="w")
inf = io.open(realsrc, encoding="utf-8")
pp = self.pp.clone()
if src[-4:] == ".css":
pp.setMarker("%")
pp.out = outf
pp.do_include(inf)
pp.failUnused(realsrc)
outf.close()
inf.close()
return
# copy or symlink if newer
if getModTime(realsrc) > outHelper.getDestModTime(e.output):
if self.outputFormat == "symlink":
outHelper.symlink(realsrc, out)
return
outf = outHelper.getOutput(out)
# open in binary mode, this can be images etc
inf = open(realsrc, "rb")
outf.write(inf.read())
outf.close()
inf.close()
class OutputHelper_jar(object):
"""Provide getDestModTime and getOutput for a given jarfile."""
def __init__(self, jarfile):
self.jarfile = jarfile
def getDestModTime(self, aPath):
try:
info = self.jarfile.getinfo(aPath)
return info.date_time
except Exception:
return localtime(0)
def getOutput(self, name, mode="wb"):
return ZipEntry(name, self.jarfile)
class OutputHelper_flat(object):
"""Provide getDestModTime and getOutput for a given flat
output directory. The helper method ensureDirFor is used by
the symlink subclass.
"""
def __init__(self, basepath):
self.basepath = basepath
def getDestModTime(self, aPath):
return getModTime(os.path.join(self.basepath, aPath))
def getOutput(self, name, mode="wb"):
out = self.ensureDirFor(name)
# remove previous link or file
try:
os.remove(out)
except OSError as e:
if e.errno != errno.ENOENT:
raise
if "b" in mode:
return io.open(out, mode)
else:
return io.open(out, mode, encoding="utf-8", newline="\n")
def ensureDirFor(self, name):
out = os.path.join(self.basepath, name)
outdir = os.path.dirname(out)
if not os.path.isdir(outdir):
try:
os.makedirs(outdir)
except OSError as error:
if error.errno != errno.EEXIST:
raise
return out
class OutputHelper_symlink(OutputHelper_flat):
"""Subclass of OutputHelper_flat that provides a helper for
creating a symlink including creating the parent directories.
"""
def symlink(self, src, dest):
out = self.ensureDirFor(dest)
# remove previous link or file
try:
os.remove(out)
except OSError as e:
if e.errno != errno.ENOENT:
raise
if sys.platform != "win32":
os.symlink(src, out)
else:
# On Win32, use ctypes to create a hardlink
rv = CreateHardLink(ensure_bytes(out), ensure_bytes(src), None)
if rv == 0:
raise WinError()
def main(args=None):
args = args or sys.argv
jm = JarMaker()
p = jm.getCommandLineParser()
(options, args) = p.parse_args(args)
jm.outputFormat = options.f
jm.sourcedirs = options.s
jm.topsourcedir = options.t
if options.e:
jm.useChromeManifest = True
jm.useJarfileManifest = False
if options.l10n_base:
if not options.relativesrcdir:
p.error("relativesrcdir required when using l10n-base")
if options.l10n_src:
p.error("both l10n-src and l10n-base are not supported")
jm.l10nbase = options.l10n_base
jm.relativesrcdir = options.relativesrcdir
jm.localedirs = options.l10n_src
if options.root_manifest_entry_appid:
jm.rootManifestAppId = options.root_manifest_entry_appid
noise = logging.INFO
if options.verbose is not None:
noise = options.verbose and logging.DEBUG or logging.WARN
if sys.version_info[:2] > (2, 3):
logging.basicConfig(format="%(message)s")
else:
logging.basicConfig()
logging.getLogger().setLevel(noise)
topsrc = options.t
topsrc = os.path.normpath(os.path.abspath(topsrc))
if not args:
infile = sys.stdin
else:
(infile,) = args
infile = six.ensure_text(infile)
jm.makeJar(infile, options.d)