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

GitLibraryObject subclass:#GitRepository

	instanceVariableNames:'path workdir index'

	classVariableNames:''

	poolDictionaries:'GitObjectType GitStatusCodes'

	category:'SCM-Git-Model'

!

!GitRepository class methodsFor:'instance creation'!

clone: url to: stringOrDirectory

    | dir ref fetchStats checkoutStats options |

    dir := stringOrDirectory asFilename.

    dir exists ifTrue:[

        GitError raiseErrorString:'Destination directory already exists'.

        ^self

    ].

    dir directory isDirectory ifFalse:[

        GitError raiseErrorString:'Parent directory for destination does not exists'.

        ^self

    ].

    ref := ByteArray new: ExternalBytes sizeofPointer.

    fetchStats := GitIndexerStatsStructure new.

    checkoutStats := GitIndexerStatsStructure new.

    options := GitCheckoutOptions new.

    options strategyCreateMissing.

    GitError raiseIfError: 

        (GitPrimitives prim_git_clone: ref origin_url: url asString workdir_path: dir pathName fetch_stats: fetchStats checkout_stats: checkoutStats checkout_opts: options).

    ^self new 

        setHandleFromRef:ref;

        setPath: dir pathName;

        yourself

    "Created: / 19-09-2012 / 15:27:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

open: aString

    "Opens an existing git repository on given path"

    | ref |

    ref := ByteArray new: ExternalBytes sizeofPointer.

    GitError raiseIfError: (GitPrimitives prim_git_repository_open: ref path: aString).

    ^self new 

        setHandleFromRef:ref;

        setPath: aString;

        yourself

    "Created: / 07-09-2012 / 23:45:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository class methodsFor:'accessing'!

structSize

    "Returns size of undelaying structure in bytes"

    ^0

! !

!GitRepository methodsFor:'accessing'!

head

    | ref err |

    ref := ByteArray new: ExternalBytes sizeofPointer.

    err := GitPrimitives prim_git_repository_head: ref repo: handle.

    GitError raiseIfError: err.

    ^GitReference new setHandleFromRef: ref

    "Created: / 25-09-2012 / 10:48:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

workingCopy

    self isBare ifTrue:[

        GitError raiseErrorString: 'Repository is bare'.

    ].

    ^GitWorkingCopy new setRepository: self

    "Created: / 19-09-2012 / 15:32:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

workingCopyOn: aStringOrFilename

    | repo directory |

    directory := aStringOrFilename asFilename.

    directory exists ifFalse:[

        [ directory recursiveMakeDirectory ] on: Error do:[:cause|

            GitError new

                parameter: cause;

                messageText: 'Cannot create directory for working copy';

                raise.

        ]

    ] ifTrue:[

        directory isDirectory ifFalse:[

            GitError raiseErrorString: 'Given directory is not a directory'.

        ]

    ].

    repo := self workdir = aStringOrFilename asFilename 

                ifTrue:[self]

                ifFalse:[self copy workdir: aStringOrFilename asString update: false].

    ^GitWorkingCopy new setRepository: repo

    "Created: / 19-09-2012 / 09:48:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'actions'!

commit: message tree: tree parents: parents update: refOrNil commiter: commiterOrNil author: authorOrNil

    | oid err committer author parentsA |

    committer := commiterOrNil notNil 

                    ifTrue:[committer copyNow]

                    ifFalse:[GitCommitterQuery query copyNow].

    author := commiterOrNil notNil

                    ifTrue:[author]

                    ifFalse:[committer copy].

    parentsA := ByteArray new: (ExternalBytes sizeofPointer * parents size).

    parents withIndexDo:[:each :idx|

        parentsA pointerAt: (1 + ((idx - 1) * ExternalBytes sizeofPointer)) put: each getHandle.

    ].

    oid := GitOid new.

    err := GitPrimitives prim_git_commit_create: oid 

                                           repo: handle 

                                         author: author getHandle

                                      committer: committer getHandle

                               message_encoding: 'utf-8'

                                        message: message utf8Encoded

                                           tree: tree getHandle

                                   parent_count: parents size

                                        parents: parentsA.

    GitError raiseIfError: err.

    ^self lookup: oid type: OBJ_COMMIT.

    "Created: / 25-09-2012 / 14:51:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'copying'!

shallowCopy

    ^self class open: path

    "Created: / 10-09-2012 / 19:04:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'initialization'!

setPath: aString

    path := aString

    "Created: / 10-09-2012 / 19:05:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'initialization & release'!

free

    handle notNil ifTrue:[

        GitPrimitives prim_git_object_free: handle. 

        handle := nil.

    ].

    "Created: / 17-09-2012 / 21:16:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'lookup'!

lookup: oid

    "Lookup an object with given OID"

    ^self lookup: oid type: OBJ_ANY

    "Created: / 10-09-2012 / 10:53:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

lookup: oid type: typeId

    "Lookup an object with given OID"

    | ref err type obj |

    oid class == GitOid ifFalse:[

        self error: 'Passed oid is not a GitOid'.

        ^nil.

    ].

    ref := ByteArray new: ExternalBytes sizeofPointer.

    err := GitPrimitives prim_git_object_lookup: ref repo: handle id: oid type: typeId.

    GitError raiseIfError: err.

    typeId == OBJ_ANY ifTrue:[

        obj := ExternalAddress new setAddressFromBytes:ref.

        type := GitPrimitives prim_git_object_type: obj.

    ] ifFalse:[

        type := typeId.

    ].

    obj := GitObject newForType: type.

    ^obj

        setHandleFromRef: ref;

        setOid: oid;

        setRepository: self;

        yourself

    "Created: / 10-09-2012 / 11:01:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'private'!

checkout: object

    | err stats options |

    object isGitTreeish ifFalse:[

        GitError raiseErrorString:'Invalid argument: ', object printString.

        ^self.

    ].

    stats := GitIndexerStatsStructure new.

    options := GitCheckoutOptions new.

    options strategyCreateMissing.

    err := GitPrimitives prim_git_checkout_tree: handle treeish: object getHandle opts: options stats: stats. 

    GitError raiseIfError: err.

    "Created: / 19-09-2012 / 09:52:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'private-accessing'!

getHandleClass

    ^GitRepositoryHandle

    "Created: / 17-09-2012 / 21:20:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

statusOf: aFilename

    | ref err |

    (aFilename pathName startsWith: self workdir pathName ) ifFalse:[

        GitError raiseErrorString: 'Given path is within working copy'.

        ^0.

    ].

    ref := ByteArray new: ExternalBytes sizeofInt.

    err := GitPrimitives prim_git_status_file: ref repo: handle path: (aFilename pathName copyFrom: (workdir pathName size + 2)).

    GitError raiseIfError: err.

    ^ref longAt:1

    "Created: / 24-09-2012 / 22:27:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

workdir

    "Get the path of the working directory for this repository or nil, if

     repository is bare"

    self isBare ifTrue: [ ^ nil ].

    workdir isNil ifTrue:[

        workdir := GitPrimitives prim_git_repository_workdir: handle.

        workdir := workdir asFilename.

    ].

    ^workdir

    "Created: / 10-09-2012 / 19:07:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

workdir: aStringOrFilename update: aBoolean

    "Set the path of the working directory for this repository.

     If update is true, then create/update gitlink in workdir and set 

     config 'core.worktree' (if workdir is not the parent of the 

     .git directory)"

    GitError raiseIfError: 

        (GitPrimitives prim_git_repository_set_workdir: handle 

                                               workdir: aStringOrFilename asString

                                        update_gitlink: (aBoolean ifTrue:[1] ifFalse:[0])).

    workdir := aStringOrFilename asFilename.

    "Created: / 10-09-2012 / 19:19:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository methodsFor:'testing'!

headIsDetached

    ^(GitPrimitives prim_git_repository_head_detached: handle) == 1

    "Created: / 25-09-2012 / 11:06:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

headIsOrphan

    ^(GitPrimitives prim_git_repository_head_orphan: handle) == 1

    "Created: / 25-09-2012 / 11:06:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

isBare

    "Check if a repository is bare"

    ^(GitPrimitives prim_git_repository_is_bare: handle) == 1

    "Created: / 10-09-2012 / 19:11:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

isEmpty

    "An empty repository has just been initialized and contains

     no commits."

    ^(GitPrimitives prim_git_repository_is_empty: self) == 1

    "Created: / 10-09-2012 / 19:12:24 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!GitRepository class methodsFor:'documentation'!

version_SVN

    ^ '$Id::                                                                                                                        $'

! !