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

Object subclass:#HGCommand

	instanceVariableNames:'workingDirectory'

	classVariableNames:'HGExecutable Debugging'

	poolDictionaries:''

	category:'SCM-Mercurial-Internal'

!

HGCommand subclass:#clone

	instanceVariableNames:'url path'

	classVariableNames:''

	poolDictionaries:''

	privateIn:HGCommand

!

HGCommand subclass:#commit

	instanceVariableNames:'message files'

	classVariableNames:''

	poolDictionaries:''

	privateIn:HGCommand

!

HGCommand subclass:#log

	instanceVariableNames:'start stop'

	classVariableNames:''

	poolDictionaries:''

	privateIn:HGCommand

!

HGCommand subclass:#push

	instanceVariableNames:'remote refspec'

	classVariableNames:''

	poolDictionaries:''

	privateIn:HGCommand

!

HGCommand subclass:#status

	instanceVariableNames:'path'

	classVariableNames:''

	poolDictionaries:''

	privateIn:HGCommand

!

!HGCommand class methodsFor:'documentation'!

documentation

"

    A wrapper for hg command line tool. Individual commands are wrapped in 

    my private classes. 

    HGCommand is part of internal implementation and subject to change. 

    Therefore it should not be used by user code. Use classed and APIs in 

    SCM-Mercurial-Core instead.

    [author:]

        Jan Vrany <jan.vrany@fit.cvut.cz>

    [instance variables:]

    [class variables:]

    [see also:]

"

! !

!HGCommand class methodsFor:'initialization'!

initialize

    "Invoked at system start or when the class is dynamically loaded."

    "/ please change as required (and remove this comment)

    "/ HGExecutable := nil.

    Debugging := OperatingSystem getLoginName = 'jv'.

    "Modified: / 12-11-2012 / 22:42:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand class methodsFor:'accessing'!

verbose

    ^ UserPreferences current hgVerbose

    "Created: / 19-03-2008 / 12:29:47 / janfrog"

    "Modified: / 19-03-2009 / 14:00:50 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified (format): / 27-12-2011 / 16:00:06 / dundee"

    "Modified: / 17-10-2012 / 13:05:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

verbose:aBoolean

    UserPreferences current hgVerbose:aBoolean

    "Created: / 19-03-2008 / 12:29:59 / janfrog"

    "Modified: / 19-03-2009 / 14:00:59 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified (format): / 27-12-2011 / 16:00:13 / dundee"

    "Modified: / 17-10-2012 / 13:05:35 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand class methodsFor:'commands'!

clone

    ^clone new

    "Created: / 01-10-2012 / 00:09:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

commit

    ^commit new

    "Created: / 12-11-2012 / 22:40:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

log

    ^log new

    "Created: / 13-11-2012 / 09:00:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

push

    ^push new

    "Created: / 30-09-2012 / 23:46:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

status

    ^status new

    "Created: / 23-10-2012 / 11:10:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand class methodsFor:'commands-shortcuts'!

clone: url to: stringOfFilename

    self clone

        url: url;

        path: stringOfFilename asFilename asAbsoluteFilename pathName;

        execute

    "Created: / 01-10-2012 / 00:06:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand methodsFor:'accessing'!

workingDirectory

    ^workingDirectory notNil ifTrue:[

        workingDirectory

    ] ifFalse: [

        Filename currentDirectory pathName

    ]

    "Created: / 11-05-2011 / 08:26:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-12-2011 / 15:54:08 / dundee"

    "Modified: / 01-10-2012 / 14:38:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

workingDirectory:aStringOrFilename

    aStringOrFilename asFilename isDirectory ifFalse:[

        self error:'Working directory does not exist'.

        ^self.

    ].    

    workingDirectory := aStringOrFilename asString.

    "Modified: / 01-10-2012 / 14:38:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand methodsFor:'executing'!

execute

    | pipe output pid environment sema status retval |

    pipe := NonPositionableExternalStream makePipe.

    output := pipe first.

    environment := OperatingSystem getEnvironment copy.

    environment at:'LANG' put:'C'.

    sema := Semaphore new name: 'Waiting for hg command to finish'.

    Processor monitor:[

        pid := OperatingSystem exec:(self executable) withArguments:(self arguments)

            environment:environment

            fileDescriptors:{0 . pipe second fileDescriptor . pipe second fileDescriptor}

            fork:true 

            newPgrp:false 

            inDirectory:self workingDirectory

    ] action:[:stat |

        status := stat.

        sema signal.

    ].

    pipe second close.

    pid isNil ifTrue:[

        HGCommandError raiseErrorString: 'cannot execute hg command'.

        output close.

        ^ self.

    ].

    Debugging ifTrue:[

        output := output contents asString readStream

    ].

    retval := self parse: output.

    sema wait.

    status success ifFalse:[

    ].

    ^retval

    "

        SVNv2::Command info: 'https://swing.fit.cvut.cz/svn/stx/libsvn'

    "

    "Created: / 11-05-2011 / 07:45:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 17-12-2011 / 19:22:00 / dundee"

    "Modified (format): / 27-12-2011 / 15:53:54 / dundee"

! !

!HGCommand methodsFor:'private'!

arguments

    ^ OrderedCollection streamContents:[:s |

        s nextPut:self executable.

        self argumentsGlobalOn:s.

        s nextPut:self command.

        self argumentsCommandOn:s.

    ].

    "Created: / 11-05-2011 / 07:58:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-12-2011 / 15:47:23 / dundee"

!

argumentsCommandOn:stream

    "Called to get command specific options"

    self shouldImplement

    "Created: / 11-05-2011 / 07:58:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-12-2011 / 15:46:59 / dundee"

!

argumentsGlobalOn:arg

    "Called to get global options"

    "Created: / 11-05-2011 / 07:58:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-12-2011 / 15:47:10 / dundee"

    "Modified: / 30-09-2012 / 23:43:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

command

    "Returns the git 'command' option, i.e. commit,

     push, pull, ..."

    ^self class nameWithoutPrefix

    "

        HGCommand::push basicNew command

    "

    "Created: / 11-05-2011 / 07:58:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-12-2011 / 15:47:17 / dundee"

    "Modified: / 30-09-2012 / 23:37:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (comment): / 17-10-2012 / 13:25:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

executable

    | h |

    HGExecutable notNil ifTrue:[^ HGExecutable].

    OperatingSystem isMSWINDOWSlike ifTrue:[

"/        h := Win32OperatingSystem registryEntry 

"/                key:'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\App Paths\svn.exe'.

"/        h notNil ifTrue:[GitExecutable := h valueNamed:''].

"/        GitExecutable notEmptyOrNil ifTrue:[^ GitExecutable]

        HGExecutable := OperatingSystem pathOfCommand:'hg'.

        ^HGExecutable

    ].

    OperatingSystem isUNIXlike ifTrue:[

        HGExecutable := OperatingSystem pathOfCommand:'hg'.    

        ^HGExecutable

    ].

    self error:'''hg'' executable not found!!'.

    "

     GitExecutable := nil.

     self basicNew executable

    "

    "Created: / 11-05-2011 / 07:59:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 09-12-2011 / 22:48:33 / dundee"

    "Modified (format): / 27-12-2011 / 15:51:06 / dundee"

    "Modified: / 17-10-2012 / 13:11:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

parse: stream

    "Parses output of 'hg' command, i.e. commit, log, update, checkout, 

     etc."

    ^ self subclassResponsibility

    "Created: / 11-05-2011 / 07:58:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Created: / 17-12-2011 / 17:02:41 / dundee"

    "Modified (comment): / 17-10-2012 / 13:14:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand::clone methodsFor:'accessing'!

path

    ^ path

!

path:something

    path := something.

!

url

    ^ url

!

url:something

    url := something.

! !

!HGCommand::clone methodsFor:'private'!

argumentsCommandOn:stream

    "Called to get command specific options"

    stream nextPut: url; nextPut: path

    "Created: / 01-10-2012 / 00:04:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

parse:stream

    "superclass GitCommand says that I am responsible to implement this method"

    ^ ''

    "Modified: / 01-10-2012 / 00:11:24 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand::commit methodsFor:'accessing'!

files

    ^ files

!

files:something

    files := something.

!

message

    ^ message

!

message:something

    message := something.

! !

!HGCommand::commit methodsFor:'private'!

argumentsCommandOn:stream

    "Called to get command specific options"

    | author |

    stream nextPut:'-m'; nextPut: message.

    files notNil ifTrue:[

        stream nextPutAll: files

    ].

    author := HGAuthorQuery query.

    author notNil ifTrue:[

        stream nextPut:'--user'; nextPut: author

    ]

    "Created: / 12-11-2012 / 22:38:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 14-11-2012 / 19:45:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

parse:stream

    "superclass GitCommand says that I am responsible to implement this method"

    "Nothing to do"

    "Modified: / 12-11-2012 / 22:38:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand::log methodsFor:'accessing'!

start

    ^ start

!

start:something

    start := something.

!

stop

    ^ stop

!

stop:something

    stop := something.

! !

!HGCommand::log methodsFor:'private'!

argumentsCommandOn:stream

    "Called to get command specific options"

    stream nextPut:'--rev'.

    start isNil ifTrue:[

        self error:'No start revision given'.

    ].

    stop notNil ifTrue:[

        stream nextPut:(start printString , ':' , stop printString)

    ] ifFalse:[

        stream nextPut:start

    ].

    stream 

        nextPut:'--debug';

        nextPut:'--template';

        nextPut:HGCommandParser templateLog.

    "Created: / 13-11-2012 / 09:05:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 13-11-2012 / 17:15:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

parse: stream

    "Parses output of 'hg' command, i.e. commit, log, update, checkout, 

     etc."

    ^ (HGCommandParser on: stream) parseCommandLog

    "Created: / 13-11-2012 / 09:05:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand::push methodsFor:'accessing'!

refspec

    ^ refspec

!

refspec:something

    refspec := something.

!

remote

    ^ remote

!

remote:something

    remote := something.

! !

!HGCommand::push methodsFor:'private'!

argumentsCommandOn:stream

    "Called to get command specific options"

    stream nextPut: remote.

    refspec notNil ifTrue:[

        stream nextPut: refspec.

    ]

    "Created: / 30-09-2012 / 23:44:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

parse:stream

    "superclass GitCommand says that I am responsible to implement this method"

    ^ ''

    "Modified: / 01-10-2012 / 00:11:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!HGCommand::status methodsFor:'accessing'!

path

    ^ path

!

path:aString

    path := aString.

! !

!HGCommand::status methodsFor:'private'!

argumentsCommandOn:stream

    "Called to get command specific options"

    stream nextPut:'-A'.

    path notNil ifTrue:[stream nextPut: path]

    "Created: / 23-10-2012 / 11:09:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

parse:stream

    ^(HGCommandParser on: stream) parseCommandStatus

    "Modified: / 23-10-2012 / 11:07:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !