Python FileSpec.fromFile方法代码示例

# 需要导入模块: from direct.p3d.FileSpec import FileSpec [as 别名]
# 或者: from direct.p3d.FileSpec.FileSpec import fromFile [as 别名]
        def writeDescFile(self):
            """ Rewrites the desc file with the new patch
            information. """

            if not self.anyChanges:
                # No need to rewrite.
                return

            xpackage = self.doc.FirstChildElement('package')
            if not xpackage:
                return

            packageSeq = SeqValue()
            packageSeq.loadXml(xpackage, 'seq')
            packageSeq += 1
            packageSeq.storeXml(xpackage, 'seq')

            # Remove all of the old patch entries from the desc file
            # we read earlier.
            xremove = []
            for value in ['base_version', 'top_version', 'patch']:
                xpatch = xpackage.FirstChildElement(value)
                while xpatch:
                    xremove.append(xpatch)
                    xpatch = xpatch.NextSiblingElement(value)

            for xelement in xremove:
                xpackage.RemoveChild(xelement)

            xpackage.RemoveAttribute('last_patch_version')

            # Now replace them with the current patch information.
            xpackage.SetAttribute('patch_version', str(self.patchVersion))

            xarchive = TiXmlElement('base_version')
            self.baseFile.storeXml(xarchive)
            xpackage.InsertEndChild(xarchive)

            # The current version is now the top version.
            xarchive = TiXmlElement('top_version')
            self.currentFile.storeXml(xarchive)
            xpackage.InsertEndChild(xarchive)
            
            for patchfile in self.patches:
                xpatch = patchfile.makeXml(self)
                xpackage.InsertEndChild(xpatch)

            self.doc.SaveFile()

            # Also copy the seq to the import desc file, for
            # documentation purposes.

            importDescFilename = self.packageDesc.cStr()[:-3] + 'import.xml'
            importDescFullpath = Filename(self.patchMaker.installDir, importDescFilename)
            doc = TiXmlDocument(importDescFullpath.toOsSpecific())
            if doc.LoadFile():
                xpackage = doc.FirstChildElement('package')
                if xpackage:
                    packageSeq.storeXml(xpackage, 'seq')
                    doc.SaveFile()
            else:
                print "Couldn't read %s" % (importDescFullpath)

            if self.contentsDocPackage:
                # Now that we've rewritten the xml file, we have to
                # change the contents.xml file that references it to
                # indicate the new file hash.
                fileSpec = FileSpec()
                fileSpec.fromFile(self.patchMaker.installDir, self.packageDesc)
                fileSpec.storeXml(self.contentsDocPackage)

                # Also important to update the import.xml hash.
                ximport = self.contentsDocPackage.FirstChildElement('import')
                if ximport:
                    fileSpec = FileSpec()
                    fileSpec.fromFile(self.patchMaker.installDir, importDescFilename)
                    fileSpec.storeXml(ximport)

                # Also copy the package seq value into the
                # contents.xml file, mainly for documentation purposes
                # (the authoritative seq value is within the desc
                # file).
                packageSeq.storeXml(self.contentsDocPackage, 'seq')

# 需要导入模块: from direct.p3d.FileSpec import FileSpec [as 别名]
# 或者: from direct.p3d.FileSpec.FileSpec import fromFile [as 别名]
    class Patchfile:
        """ A single patchfile for a package. """
        
        def __init__(self, package):
            self.package = package
            self.packageName = package.packageName
            self.platform = package.platform
            self.version = package.version
            self.hostUrl = None

            # FileSpec for the patchfile itself
            self.file = None

            # FileSpec for the package file that the patch is applied to
            self.sourceFile = None

            # FileSpec for the package file that the patch generates
            self.targetFile = None

            # The PackageVersion corresponding to our sourceFile
            self.fromPv = None

            # The PackageVersion corresponding to our targetFile
            self.toPv = None

        def getSourceKey(self):
            """ Returns the key for locating the package that this
            patchfile can be applied to. """
            return (self.packageName, self.platform, self.version, self.hostUrl, self.sourceFile)

        def getTargetKey(self):
            """ Returns the key for locating the package that this
            patchfile will generate. """
            return (self.packageName, self.platform, self.version, self.hostUrl, self.targetFile)

        def fromFile(self, packageDir, patchFilename, sourceFile, targetFile):
            """ Creates the data structures from an existing patchfile
            on disk. """
            
            self.file = FileSpec()
            self.file.fromFile(packageDir, patchFilename)
            self.sourceFile = sourceFile
            self.targetFile = targetFile

        def loadXml(self, xpatch):
            """ Reads the data structures from an xml file. """
            
            self.packageName = xpatch.Attribute('name') or self.packageName
            self.platform = xpatch.Attribute('platform') or self.platform
            self.version = xpatch.Attribute('version') or self.version
            self.hostUrl = xpatch.Attribute('host') or self.hostUrl

            self.file = FileSpec()
            self.file.loadXml(xpatch)

            xsource = xpatch.FirstChildElement('source')
            if xsource:
                self.sourceFile = FileSpec()
                self.sourceFile.loadXml(xsource)

            xtarget = xpatch.FirstChildElement('target')
            if xtarget:
                self.targetFile = FileSpec()
                self.targetFile.loadXml(xtarget)

        def makeXml(self, package):
            xpatch = TiXmlElement('patch')

            if self.packageName != package.packageName:
                xpatch.SetAttribute('name', self.packageName)
            if self.platform != package.platform:
                xpatch.SetAttribute('platform', self.platform)
            if self.version != package.version:
                xpatch.SetAttribute('version', self.version)
            if self.hostUrl != package.hostUrl:
                xpatch.SetAttribute('host', self.hostUrl)

            self.file.storeXml(xpatch)

            xsource = TiXmlElement('source')
            self.sourceFile.storeMiniXml(xsource)
            xpatch.InsertEndChild(xsource)

            xtarget = TiXmlElement('target')
            self.targetFile.storeMiniXml(xtarget)
            xpatch.InsertEndChild(xtarget)

            return xpatch

# 需要导入模块: from direct.p3d.FileSpec import FileSpec [as 别名]
# 或者: from direct.p3d.FileSpec.FileSpec import fromFile [as 别名]

#.........这里部分代码省略.........
                self.currentFile.loadXml(xarchive)

            # Get the top_version--the top (newest) of the patch
            # chain.
            xarchive = xpackage.FirstChildElement('top_version')
            if xarchive:
                self.topFile = FileSpec()
                self.topFile.loadXml(xarchive)

                if self.topFile.hash == self.currentFile.hash:
                    # No new version this pass.
                    isNewVersion = False
                else:
                    # There's a new version this pass.  Update it.
                    self.anyChanges = True
                
            else:
                # If there isn't a top_version yet, we have to make
                # one, by duplicating the currentFile.
                self.topFile = copy.copy(self.currentFile)
                self.anyChanges = True

            # Get the current patch version.  If we have a
            # patch_version attribute, it refers to this particular
            # instance of the file, and that is the current patch
            # version number.  If we only have a last_patch_version
            # attribute, it means a patch has not yet been built for
            # this particular instance, and that number is the
            # previous version's patch version number.
            patchVersion = xpackage.Attribute('patch_version')
            if patchVersion:
                self.patchVersion = int(patchVersion)
            else:
                patchVersion = xpackage.Attribute('last_patch_version')
                if patchVersion:
                    self.patchVersion = int(patchVersion)
                    if isNewVersion:
                        self.patchVersion += 1
                self.anyChanges = True

            # Put the patchVersion in the compressed filename, for
            # cache-busting.  This means when the version changes, its
            # URL will also change, guaranteeing that users will
            # download the latest version, and not some stale cache
            # file.
            xcompressed = xpackage.FirstChildElement('compressed_archive')
            if xcompressed:
                compressedFile = FileSpec()
                compressedFile.loadXml(xcompressed)

                oldCompressedFilename = compressedFile.filename
                self.compressedFilename = oldCompressedFilename

                if doProcessing:
                    newCompressedFilename = '%s.%s.pz' % (self.currentFile.filename, self.patchVersion)
                    if newCompressedFilename != oldCompressedFilename:
                        oldCompressedPathname = Filename(self.packageDir, oldCompressedFilename)
                        newCompressedPathname = Filename(self.packageDir, newCompressedFilename)
                        if oldCompressedPathname.renameTo(newCompressedPathname):
                            compressedFile.fromFile(self.packageDir, newCompressedFilename)
                            compressedFile.storeXml(xcompressed)

                        self.compressedFilename = newCompressedFilename
                        self.anyChanges = True

            # Get the base_version--the bottom (oldest) of the patch
            # chain.
            xarchive = xpackage.FirstChildElement('base_version')
            if xarchive:
                self.baseFile = FileSpec()
                self.baseFile.loadXml(xarchive)
            else:
                # If there isn't a base_version yet, we have to make
                # one, by duplicating the currentFile.
                self.baseFile = copy.copy(self.currentFile)

                # Note that the we only store the compressed version
                # of base_filename on disk, but we store the md5 of
                # the uncompressed version in the xml file.  To
                # emphasize this, we name it without the .pz extension
                # in the xml file, even though the compressed file on
                # disk actually has a .pz extension.
                self.baseFile.filename += '.base'

                # Also duplicate the (compressed) file itself.
                if doProcessing and self.compressedFilename:
                    fromPathname = Filename(self.packageDir, self.compressedFilename)
                    toPathname = Filename(self.packageDir, self.baseFile.filename + '.pz')
                    fromPathname.copyTo(toPathname)
                self.anyChanges = True

            self.patches = []
            xpatch = xpackage.FirstChildElement('patch')
            while xpatch:
                patchfile = PatchMaker.Patchfile(self)
                patchfile.loadXml(xpatch)
                self.patches.append(patchfile)
                xpatch = xpatch.NextSiblingElement('patch')

            return True

# 需要导入模块: from direct.p3d.FileSpec import FileSpec [as 别名]
# 或者: from direct.p3d.FileSpec.FileSpec import fromFile [as 别名]
    def __buildInstallPlans(self):
        """ Sets up self.installPlans, a list of one or more "plans"
        to download and install the package. """

        pc = PStatCollector(':App:PackageInstaller:buildInstallPlans')
        pc.start()

        self.hasPackage = False
        
        if self.host.appRunner and self.host.appRunner.verifyContents == self.host.appRunner.P3DVCNever:
            # We're not allowed to download anything.
            self.installPlans = []
            pc.stop()
            return

        if self.asMirror:
            # If we're just downloading a mirror archive, we only need
            # to get the compressed archive file.

            # Build a one-item install plan to download the compressed
            # archive.
            downloadSize = self.compressedArchive.size
            func = lambda step, fileSpec = self.compressedArchive: self.__downloadFile(step, fileSpec, allowPartial = True)
            
            step = self.InstallStep(func, downloadSize, self.downloadFactor, 'download')
            installPlan = [step]
            self.installPlans = [installPlan]
            pc.stop()
            return 

        # The normal download process.  Determine what we will need to
        # download, and build a plan (or two) to download it all.
        self.installPlans = None

        # We know we will at least need to unpack the archive contents
        # at the end.
        unpackSize = 0
        for file in self.extracts:
            unpackSize += file.size
        step = self.InstallStep(self.__unpackArchive, unpackSize, self.unpackFactor, 'unpack')
        planA = [step]

        # If the uncompressed archive file is good, that's all we'll
        # need to do.
        self.uncompressedArchive.actualFile = None
        if self.uncompressedArchive.quickVerify(self.getPackageDir(), notify = self.notify):
            self.installPlans = [planA]
            pc.stop()
            return

        # Maybe the compressed archive file is good.
        if self.compressedArchive.quickVerify(self.getPackageDir(), notify = self.notify):
            uncompressSize = self.uncompressedArchive.size
            step = self.InstallStep(self.__uncompressArchive, uncompressSize, self.uncompressFactor, 'uncompress')
            planA = [step] + planA
            self.installPlans = [planA]
            pc.stop()
            return

        # Maybe we can download one or more patches.  We'll come back
        # to that in a minute as plan A.  For now, construct plan B,
        # which will be to download the whole archive.
        planB = planA[:]

        uncompressSize = self.uncompressedArchive.size
        step = self.InstallStep(self.__uncompressArchive, uncompressSize, self.uncompressFactor, 'uncompress')
        planB = [step] + planB

        downloadSize = self.compressedArchive.size
        func = lambda step, fileSpec = self.compressedArchive: self.__downloadFile(step, fileSpec, allowPartial = True)

        step = self.InstallStep(func, downloadSize, self.downloadFactor, 'download')
        planB = [step] + planB

        # Now look for patches.  Start with the md5 hash from the
        # uncompressedArchive file we have on disk, and see if we can
        # find a patch chain from this file to our target.
        pathname = Filename(self.getPackageDir(), self.uncompressedArchive.filename)
        fileSpec = self.uncompressedArchive.actualFile
        if fileSpec is None and pathname.exists():
            fileSpec = FileSpec()
            fileSpec.fromFile(self.getPackageDir(), self.uncompressedArchive.filename)
        plan = None
        if fileSpec:
            plan = self.__findPatchChain(fileSpec)
        if plan:
            # We can download patches.  Great!  That means this is
            # plan A, and the full download is plan B (in case
            # something goes wrong with the patching).
            planA = plan + planA
            self.installPlans = [planA, planB]
        else:
            # There are no patches to download, oh well.  Stick with
            # plan B as the only plan.
            self.installPlans = [planB]

        # In case of unexpected failures on the internet, we will retry 
        # the full download instead of just giving up.
        for retry in range(ConfigVariableInt('package-full-dl-retries', 1)):
            self.installPlans.append(planB[:])
#.........这里部分代码省略.........