"

 Copyright (c) 2007-2010 Jan Vrany

 Copyright (c) 2009-2010 eXept Software AG

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

"

"{ Package: 'stx:libsvn' }"

"{ NameSpace: SVN }"

Object subclass:#ExternalMergeTool

	instanceVariableNames:'tempDir textA labelA textB labelB textC labelC textMerged'

	classVariableNames:''

	poolDictionaries:''

	category:'SVN-Diff-External'

!

!ExternalMergeTool class methodsFor:'documentation'!

copyright

"

 Copyright (c) 2007-2010 Jan Vrany

 Copyright (c) 2009-2010 eXept Software AG

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

"

! !

!ExternalMergeTool class methodsFor:'others'!

version_CVS

    ^ '$Header$'

! !

!ExternalMergeTool class methodsFor:'testing'!

isAvailable

    "raise an error: must be redefined in concrete subclass(es)"

    ^ self subclassResponsibility

! !

!ExternalMergeTool methodsFor:'accessing'!

labelA

    ^ labelA ? 'A'

!

labelA:aString

    labelA := aString.

!

labelB

    ^ labelB ? 'B'

!

labelB:aString

    labelB := aString.

!

labelC

    ^ labelC ? 'C'

!

labelC:aString

    labelC := aString.

!

textA

    ^ textA

!

textA:aString

    textA := aString.

!

textB

    ^ textB

!

textB:aString

    textB := aString.

!

textC

    ^ textC

!

textC:aString

    textC := aString.

!

textMerged

    ^ textMerged

! !

!ExternalMergeTool methodsFor:'merging'!

merge

    tempDir := Filename newTemporaryDirectory.

    [self 

        save: textA as: tempDir / 'a.txt';

        save: textB as: tempDir / 'b.txt';

        save: textC as: tempDir / 'c.txt'.

    self runExternalProgram.

    (tempDir / 'merged.txt') exists ifTrue:

        [textMerged := (tempDir / 'merged.txt') readStream contents asString].

    ] ensure:

        [tempDir recursiveRemove.

        tempDir := nil]

! !

!ExternalMergeTool methodsFor:'private'!

runExternalProgram

    self subclassResponsibility

!

save: aString as: aFilename

    | s |

    s := aFilename asFilename writeStream.

    [s nextPutAll: aString]

        ensure:[s close]

! !

!ExternalMergeTool class methodsFor:'documentation'!

version

    ^ '$Header$'

!

version_SVN

    ^ '§Id: SVN__ExternalMergeTool.st 363 2011-08-08 13:49:48Z vranyj1 §'

! !