"{ Package: 'stx:libscm/mercurial' }"

SCMAbstractPackageModelRegistry subclass:#HGPackageModelRegistry

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'SCM-Mercurial-StX'

!

!HGPackageModelRegistry methodsFor:'accessing'!

packageNamed:package

    "Returns a HGPackageModel for given package or nil

     if given package is not backed by Mercurial repository."

    | dir components names directories root rootI rootD pkg|

    packages at: package ifPresent: [ :p | ^ p ].

    dir := Smalltalk getPackageDirectoryForPackage: package.

    dir isNil ifTrue:[ ^ nil ].

    components := OrderedCollection new.

    names := OrderedCollection new.

    (package includes: $:) ifFalse:[

        components := package.

        names := package.

    ] ifTrue:[

        | i1 i2 |

        i1 := 1.

        i2 := package indexOf: $:.

        components add: (package copyFrom: i1 to: i2 - 1).

        i1 := i2 + 1.

        [ (i2 := package indexOf: $/ startingAt: i1) ~~ 0 ] whileTrue:[

            components add: (package copyFrom: i1 to: i2 - 1).

            i1 := i2 + 1.        

        ].

        components add: (package copyFrom: i1 ).

        names add: package

    ].

    directories := Array new: components size.

    directories at: components size put: dir.

    directories size - 1 downTo: 1 do:[:i|

        directories at: i put: (directories at: i + 1) directory.            

    ].

    "/ search cached packages...

    1 to: names size do:[:i|

        packages at: (names at:i) ifPresent:[:p|root := p. rootI := i].

    ].

    root isNil ifTrue:[

        directories withIndexDo:[:each :eachI|

            ( each / '.hg' ) exists  ifTrue:[

                rootD := each.

                rootI := eachI.

            ].

        ].

        rootD isNil ifTrue:[ ^ nil ].

        root := HGPackageModel new 

                    setName: (names at: rootI) 

                    repository: (HGRepository on: rootD).

        packages at: root name put: root.

    ].

    pkg := root.

    rootI + 1 to: components size do:[:each|

        pkg := pkg construct: (components at:each).

        packages at: pkg name put: pkg.        

    ].

    ^pkg

    "Created: / 14-11-2012 / 00:15:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 03-12-2012 / 14:27:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGPackageModelRegistry methodsFor:'initialization'!

flush: pattern

    "Flushes all cached data packages matching given name."

    | toFlush |

    toFlush := OrderedCollection new.

    packages valuesDo:[:package|

        (package name matches: pattern) ifTrue:[toFlush add: package]].

    toFlush do:[:package|

        | wcdir |

        repositories removeKey: package repository path ifAbsent:[nil].

        wcdir := package temporaryWorkingCopy path.

        [ wcdir recursiveRemove ] on: Error do:[

            OperatingSystem isMSWINDOWSlike ifTrue:[

                Delay waitForSeconds: 1.

                wcdir recursiveRemove.

            ].

        ].

        packages removeKey: package name

    ].

    "Created: / 16-11-2012 / 19:40:35 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 22-11-2012 / 16:03:07 / jv"

    "Modified: / 01-12-2012 / 00:32:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGPackageModelRegistry class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'

!

version_SVN

    ^ '§Id::                                                                                                                        §'

! !