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"
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COPYRIGHT (c) 2003 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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"{ Package: 'stx:libbasic3' }"
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"{ NameSpace: Packages }"
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Object subclass:#StxPackageFileReader
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instanceVariableNames:'handler stream'
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classVariableNames:''
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poolDictionaries:''
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category:'Package-Handlers'
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!
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Object subclass:#Version1
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instanceVariableNames:'filename package'
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classVariableNames:''
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poolDictionaries:''
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privateIn:StxPackageFileReader
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!
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!StxPackageFileReader class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 2003 by eXept Software AG
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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! !
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!StxPackageFileReader class methodsFor:'instance creation'!
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forFilename:aFilename
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(self isFileVersion1:aFilename) ifTrue:[
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^ Version1 forFilename:aFilename
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].
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self error:'File type unknown'
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!
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forPackage:aPackage
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^ (self version:1) forPackage:aPackage
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!
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version:aVersionNumber
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aVersionNumber == 1 ifTrue:[
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^ Version1.
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].
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self error:'Version unknown'
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! !
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!StxPackageFileReader class methodsFor:'queries'!
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isFileBase:aFilename
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^ false
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!
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isFileVersion1:aFilename
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^ true
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! !
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!StxPackageFileReader::Version1 class methodsFor:'globals'!
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smalltalkPackageManager
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^ PackageManager smalltalkPackageManager
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! !
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!StxPackageFileReader::Version1 class methodsFor:'instance creation'!
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forFilename:aPackage
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^ self basicNew filename:aPackage
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! !
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!StxPackageFileReader::Version1 methodsFor:'accessing'!
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filename
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"return the value of the instance variable 'filename' (automatically generated)"
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^ filename
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!
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filename:something
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"set the value of the instance variable 'filename' (automatically generated)"
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filename := something.
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!
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package
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"return the value of the instance variable 'package' (automatically generated)"
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^ package
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!
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package:something
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"set the value of the instance variable 'package' (automatically generated)"
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package := something.
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! !
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!StxPackageFileReader::Version1 methodsFor:'api'!
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fileInFrom:aStream notifying:someone passChunk:passChunk single:single silent:beSilent
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"sent by a file browser or something similar"
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| packageManager |
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packageManager := PackageManager smalltalkPackageManager.
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packageManager ifNil:[
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self error: 'Error during fileIn'.
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^ self.
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].
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package := (self getInitialPackageFromChunk:aStream nextChunk).
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package ifNil:[
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self error: 'Error during fileIn'.
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^ self.
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].
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self package:package.
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self
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basicInstallPackage:package
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fromStream:aStream
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in:self class smalltalkPackageManager.
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packageManager addPackage:package.
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!
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installPackageIn:aPackageManager
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(self checkOkToInstall:package). "/ may produce errors
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self basicInstallPackage:package in:aPackageManager.
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^ package
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!
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loadPackageIn:aPackageManager
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|aStream aPackage|
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self canReadFilename:filename.
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[
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aStream := filename readStream.
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aStream nextChunk.
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aStream nextChunk.
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aPackage := self getInitialPackageFromChunk:aStream nextChunk.
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] ensure:[aStream close].
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self filename:filename.
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aPackageManager addPackage:aPackage.
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self package:aPackage.
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aPackage packageHandler:self.
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aPackage initializeLoaded.
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^ aPackage
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! !
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!StxPackageFileReader::Version1 methodsFor:'checks'!
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canReadFilename:aFilename
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aFilename isFilename ifFalse:[
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^ self error:aFilename printString, ' is not a filename so cannot be written to.'.
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].
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aFilename directory exists ifFalse:[
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^ self error:aFilename directory printString, ' directory does not exist.'.
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].
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aFilename exists ifFalse:[
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^ self error:aFilename printString, ' file does not exist'.
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].
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(aFilename isDirectory not) ifFalse:[
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^ self error:aFilename printString, ' is a directory and cannot be read'.
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].
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!
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checkOkToInstall:aPackage
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"check that aPackage is ok to install. Look for incompatibilities"
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self canReadFilename:filename
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! !
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!StxPackageFileReader::Version1 methodsFor:'helpers'!
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applyChange:aChange fromPackage:aPackage
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"apply change and make sure created objects are associated
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with package"
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| aMethod |
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aChange isMethodChange ifTrue:[
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aChange apply.
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"/ aMethod := ChangesHelper getCurrentMethodFromMethodChange:aChange.
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aMethod := aChange changeMethod.
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aMethod ifNil:[
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self error:'Error during fileIn'.
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^ self.
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].
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aMethod setPackage:aPackage name.
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^ self
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].
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aChange apply
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!
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createPackagePath
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" create the path name for the filename if it does not already exist"
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^ self createPathFor:package filename
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!
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createPathFor:aFilename
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" create the path name for the filename if it does not already exist"
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^ aFilename directory makeDirectory.
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!
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openReadStreamStreamOn:aFilename andDo:aOneArgBlockWithAnExpectedStream
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| aStream |
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[
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aStream := aFilename readStream.
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aOneArgBlockWithAnExpectedStream value:aStream
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] ensure:[
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aStream close
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]
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! !
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!StxPackageFileReader::Version1 methodsFor:'installation / uninstallation'!
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basicInstallPackage:aPackage fromStream:aStream in:aPackageManager
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"install a package"
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| changeSet |
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aPackage prerequisites evaluate.
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aPackage preInstallScript evaluate.
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changeSet := ChangeSet fromStream:aStream.
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changeSet do:[:aChange |
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self applyChange:aChange fromPackage:aPackage.
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].
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self validateInstallation. "/ may produce errors
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aPackage initializeInstalled.
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"/ aPackage isInstalled:true.
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aPackage postInstallScript evaluate.
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!
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basicInstallPackage:aPackage in:aPackageManager
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"install a package"
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self openReadStreamStreamOn:aPackage filename andDo:[:aStream |
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self skipPackageHeaderFrom:aStream.
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"/ aStream nextChunk
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self basicInstallPackage:aPackage fromStream:aStream in:aPackageManager
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].
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!
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skipPackageHeaderFrom:aReadStream
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aReadStream nextChunk. "/ nothing
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aReadStream nextChunk. "/ script for creating the receiver
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aReadStream nextChunk. "/ the package header
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! !
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!StxPackageFileReader::Version1 methodsFor:'loading'!
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loadFromStream:aStream
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aStream nextChunk.
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aStream nextChunk. "/ anEmpty string
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package := self getInitialPackageFromChunk:aStream nextChunk. "/ the receiver representation
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package filename:filename.
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^ package
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! !
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!StxPackageFileReader::Version1 methodsFor:'stream messages'!
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getChangeSetFrom:aStream
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^ ChangeSet fromStream:aStream
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!
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getInitialPackageFrom:aStream
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|nextChunk|
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nextChunk := aStream nextChunk.
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Class nameSpaceQuerySignal
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answer:Packages
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do:[
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^ (Compiler evaluate:nextChunk)
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]
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!
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getInitialPackageFromChangeSet:aChangeSet
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|nextChunk|
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nextChunk := aChangeSet first source.
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Class nameSpaceQuerySignal
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answer:Packages
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do:[
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^ (Compiler evaluate:nextChunk)
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]
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!
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getInitialPackageFromChunk:aChunk
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Class nameSpaceQuerySignal
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answer:Packages
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do:[
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^ (Compiler evaluate:aChunk)
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]
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! !
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!StxPackageFileReader::Version1 methodsFor:'validation'!
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validateAllClassesAreInImage
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#toDo
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!
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validateAllMethodsAreInImage
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#toDo
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!
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validateInstallation
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self validateAllClassesAreInImage.
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self validateAllMethodsAreInImage.
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! !
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!StxPackageFileReader class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libbasic3/packages/StxPackageFileReader.st,v 1.2 2006-01-10 09:32:03 cg Exp $'
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! !
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