mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-25 20:52:26 -06:00
306 lines
12 KiB
Python
306 lines
12 KiB
Python
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from direct.p3d.FileSpec import FileSpec
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from direct.p3d.SeqValue import SeqValue
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from direct.directnotify.DirectNotifyGlobal import *
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from pandac.PandaModules import *
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import copy
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import shutil
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import os
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class PackageMergerError(StandardError):
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pass
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class PackageMerger:
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""" This class will combine two or more separately-built stage
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directories, the output of Packager.py or the ppackage tool, into
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a single output directory. It assumes that the clocks on all
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hosts are in sync, so that the file across all builds with the
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most recent timestamp (indicated in the contents.xml file) is
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always the most current version of the file. """
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notify = directNotify.newCategory("PackageMerger")
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class PackageEntry:
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""" This corresponds to a <package> entry in the contents.xml
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file. """
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def __init__(self, xpackage, sourceDir):
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self.sourceDir = sourceDir
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self.loadXml(xpackage)
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def getKey(self):
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""" Returns a tuple used for sorting the PackageEntry
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objects uniquely per package. """
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return (self.packageName, self.platform, self.version)
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def isNewer(self, other):
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return self.descFile.timestamp > other.descFile.timestamp
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def loadXml(self, xpackage):
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self.packageName = xpackage.Attribute('name')
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self.platform = xpackage.Attribute('platform')
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self.version = xpackage.Attribute('version')
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solo = xpackage.Attribute('solo')
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self.solo = int(solo or '0')
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perPlatform = xpackage.Attribute('per_platform')
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self.perPlatform = int(perPlatform or '0')
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self.descFile = FileSpec()
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self.descFile.loadXml(xpackage)
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self.validatePackageContents()
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self.descFile.quickVerify(packageDir = self.sourceDir, notify = PackageMerger.notify, correctSelf = True)
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self.packageSeq = SeqValue()
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self.packageSeq.loadXml(xpackage, 'seq')
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self.packageSetVer = SeqValue()
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self.packageSetVer.loadXml(xpackage, 'set_ver')
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self.importDescFile = None
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ximport = xpackage.FirstChildElement('import')
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if ximport:
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self.importDescFile = FileSpec()
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self.importDescFile.loadXml(ximport)
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self.importDescFile.quickVerify(packageDir = self.sourceDir, notify = PackageMerger.notify, correctSelf = True)
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def makeXml(self):
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""" Returns a new TiXmlElement. """
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xpackage = TiXmlElement('package')
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xpackage.SetAttribute('name', self.packageName)
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if self.platform:
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xpackage.SetAttribute('platform', self.platform)
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if self.version:
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xpackage.SetAttribute('version', self.version)
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if self.solo:
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xpackage.SetAttribute('solo', '1')
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if self.perPlatform:
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xpackage.SetAttribute('per_platform', '1')
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self.descFile.storeXml(xpackage)
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self.packageSeq.storeXml(xpackage, 'seq')
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self.packageSetVer.storeXml(xpackage, 'set_ver')
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if self.importDescFile:
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ximport = TiXmlElement('import')
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self.importDescFile.storeXml(ximport)
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xpackage.InsertEndChild(ximport)
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return xpackage
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def validatePackageContents(self):
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""" Validates the contents of the package directory itself
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against the expected hashes and timestamps. Updates
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hashes and timestamps where needed. """
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if self.solo:
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return
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needsChange = False
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packageDescFullpath = Filename(self.sourceDir, self.descFile.filename)
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packageDir = Filename(packageDescFullpath.getDirname())
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doc = TiXmlDocument(packageDescFullpath.toOsSpecific())
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if not doc.LoadFile():
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message = "Could not read XML file: %s" % (self.descFile.filename)
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raise OSError, message
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xpackage = doc.FirstChildElement('package')
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if not xpackage:
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message = "No package definition: %s" % (self.descFile.filename)
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raise OSError, message
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xcompressed = xpackage.FirstChildElement('compressed_archive')
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if xcompressed:
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spec = FileSpec()
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spec.loadXml(xcompressed)
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if not spec.quickVerify(packageDir = packageDir, notify = PackageMerger.notify, correctSelf = True):
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spec.storeXml(xcompressed)
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needsChange = True
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xpatch = xpackage.FirstChildElement('patch')
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while xpatch:
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spec = FileSpec()
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spec.loadXml(xpatch)
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if not spec.quickVerify(packageDir = packageDir, notify = PackageMerger.notify, correctSelf = True):
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spec.storeXml(xpatch)
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needsChange = True
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xpatch = xpatch.NextSiblingElement('patch')
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if needsChange:
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PackageMerger.notify.info("Rewriting %s" % (self.descFile.filename))
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doc.SaveFile()
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self.descFile.quickVerify(packageDir = self.sourceDir, notify = PackageMerger.notify, correctSelf = True)
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# PackageMerger constructor
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def __init__(self, installDir):
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self.installDir = installDir
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self.xhost = None
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self.contents = {}
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self.maxAge = None
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self.contentsSeq = SeqValue()
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# We allow the first one to fail quietly.
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self.__readContentsFile(self.installDir, None)
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def __readContentsFile(self, sourceDir, packageNames):
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""" Reads the contents.xml file from the indicated sourceDir,
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and updates the internal set of packages appropriately. """
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assert sourceDir != None, "No source directory was specified!"
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contentsFilename = Filename(sourceDir, 'contents.xml')
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doc = TiXmlDocument(contentsFilename.toOsSpecific())
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if not doc.LoadFile():
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# Couldn't read file.
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return False
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xcontents = doc.FirstChildElement('contents')
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if xcontents:
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maxAge = xcontents.Attribute('max_age')
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if maxAge:
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maxAge = int(maxAge)
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if self.maxAge is None:
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self.maxAge = maxAge
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else:
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self.maxAge = min(self.maxAge, maxAge)
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contentsSeq = SeqValue()
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if contentsSeq.loadXml(xcontents):
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self.contentsSeq = max(self.contentsSeq, contentsSeq)
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xhost = xcontents.FirstChildElement('host')
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if xhost:
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self.xhost = xhost.Clone()
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xpackage = xcontents.FirstChildElement('package')
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while xpackage:
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pe = self.PackageEntry(xpackage, sourceDir)
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# Filter out any packages not listed in
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# packageNames (unless packageNames is None,
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# in which case don't filter anything).
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if packageNames is None or pe.packageName in packageNames:
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other = self.contents.get(pe.getKey(), None)
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if not other or pe.isNewer(other):
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# Store this package in the resulting output.
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self.contents[pe.getKey()] = pe
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xpackage = xpackage.NextSiblingElement('package')
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self.contentsDoc = doc
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return True
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def __writeContentsFile(self):
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""" Writes the contents.xml file at the end of processing. """
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filename = Filename(self.installDir, 'contents.xml')
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doc = TiXmlDocument(filename.toOsSpecific())
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decl = TiXmlDeclaration("1.0", "utf-8", "")
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doc.InsertEndChild(decl)
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xcontents = TiXmlElement('contents')
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if self.xhost:
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xcontents.InsertEndChild(self.xhost)
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if self.maxAge is not None:
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xcontents.SetAttribute('max_age', str(self.maxAge))
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self.contentsSeq.storeXml(xcontents)
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contents = self.contents.items()
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contents.sort()
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for key, pe in contents:
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xpackage = pe.makeXml()
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xcontents.InsertEndChild(xpackage)
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doc.InsertEndChild(xcontents)
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doc.SaveFile()
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def __copySubdirectory(self, pe):
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""" Copies the subdirectory referenced in the indicated
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PackageEntry object into the installDir, replacing the
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contents of any similarly-named subdirectory already
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there. """
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dirname = Filename(pe.descFile.filename).getDirname()
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self.notify.info("copying %s" % (dirname))
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sourceDirname = Filename(pe.sourceDir, dirname)
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targetDirname = Filename(self.installDir, dirname)
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self.__rCopyTree(sourceDirname, targetDirname)
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def __rCopyTree(self, sourceFilename, targetFilename):
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""" Recursively copies the contents of sourceDirname onto
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targetDirname. This behaves like shutil.copytree, but it does
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not remove pre-existing subdirectories. """
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if targetFilename.exists():
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if not targetFilename.isDirectory():
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# Delete any regular files in the way.
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targetFilename.unlink()
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elif not sourceFilename.isDirectory():
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# If the source file is a regular file, but the target
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# file is a directory, completely remove the target
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# file.
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shutil.rmtree(targetFilename.toOsSpecific())
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else:
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# Both the source file and target file are
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# directories.
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# We have to clean out the target directory first.
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# Instead of using shutil.rmtree(), remove the files in
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# this directory one at a time, so we don't inadvertently
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# clean out subdirectories too.
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files = os.listdir(targetFilename.toOsSpecific())
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for file in files:
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f = Filename(targetFilename, file)
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if f.isRegularFile():
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f.unlink()
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if sourceFilename.isDirectory():
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# Recursively copying a directory.
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Filename(targetFilename, '').makeDir()
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files = os.listdir(sourceFilename.toOsSpecific())
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for file in files:
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self.__rCopyTree(Filename(sourceFilename, file),
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Filename(targetFilename, file))
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else:
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# Copying a regular file.
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sourceFilename.copyTo(targetFilename)
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# Also try to copy the timestamp, but don't fuss too much
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# if it doesn't work.
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try:
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st = os.stat(sourceFilename.toOsSpecific())
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os.utime(targetFilename.toOsSpecific(), (st.st_atime, st.st_mtime))
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except OSError:
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pass
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def merge(self, sourceDir, packageNames = None):
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""" Adds the contents of the indicated source directory into
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the current pool. If packageNames is not None, it is a list
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of package names that we wish to include from the source;
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packages not named in this list will be unchanged. """
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if not self.__readContentsFile(sourceDir, packageNames):
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message = "Couldn't read %s" % (sourceDir)
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raise PackageMergerError, message
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def close(self):
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""" Finalizes the results of all of the previous calls to
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merge(), writes the new contents.xml file, and copies in all
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of the new contents. """
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dirname = Filename(self.installDir, '')
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dirname.makeDir()
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for pe in self.contents.values():
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if pe.sourceDir != self.installDir:
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# Here's a new subdirectory we have to copy in.
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self.__copySubdirectory(pe)
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self.contentsSeq += 1
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self.__writeContentsFile()
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