"{ Package: 'stx:libbasic' }"

Object subclass:#ConfigurableFeatures

	instanceVariableNames:''

	classVariableNames:'LoadedFeatures'

	poolDictionaries:''

	category:'System-Support'

!

!ConfigurableFeatures class methodsFor:'documentation'!

documentation

"

    being tired of finding '(Smalltalk at:someClass) notNil' all over the place,

    start to concentrate feature queries to this single class, which might get more

    feature methods via extensions.

    Thus, to correctly ask for a feature being present, use:

        ConfigurableFeature includesFeature:featureName

    or

        ConfigurableFeature knownFeatures

    to ask for a list of features.

    Caveat: just started; more will be moved to this place as time goes by

"

! !

!ConfigurableFeatures class methodsFor:'queries'!

allFeatures

    "a list of features which are present in that smalltalk configuration"

    ^ self knownFeatures select:[:each | self includesFeature:each]

    "

     ConfigurableFeatures allFeatures 

    "

    "Created: / 07-09-2011 / 10:50:31 / cg"

!

includesFeature:featureName

    |querySelector|

    querySelector := ('has',featureName asUppercaseFirst) asSymbol.

    ^ self perform:querySelector ifNotUnderstood:false.

    "

     ConfigurableFeatures includesFeature:#SubversionSupport

    "

    "Created: / 07-09-2011 / 10:49:08 / cg"

!

knownFeatures

    "a list of known features; some of them might not be present in that smalltalk configuration"

    ^ self class methodDictionary keys

        collect:[:each | 

            (each startsWith:'has') ifTrue:[

                (each endsWith:':') ifFalse:[

                    each copyFrom:4

                ]

            ] ifFalse:[

                nil

            ].

        ]

        thenSelect:[:nm | nm notNil]

    "

     ConfigurableFeatures allFeatures

    "

    "Created: / 07-09-2011 / 10:51:26 / cg"

! !

!ConfigurableFeatures class methodsFor:'queries-features'!

hasCVSSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'CVSSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasCVSSupport

    "

    "Created: / 03-01-2012 / 15:36:54 / cg"

!

hasCVSSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'CVSSourceCodeManager'

    "Created: / 03-01-2012 / 15:42:16 / cg"

!

hasDataBaseSourceCodeManagerSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'DataBaseSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasDataBaseSourceCodeManagerSupport

    "

    "Created: / 03-01-2012 / 15:36:03 / cg"

!

hasDataBaseSourceCodeManagerSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'DataBaseSourceCodeManager'

    "Created: / 03-01-2012 / 15:36:12 / cg"

!

hasExternalLookupSupport

    "Return true, if the VM is compiled with external lookup MOP"

%{

#ifdef SUPPORT_EXTERNAL_LOOKUP

    RETURN ( true );

#endif

%}.

    ^false

    "

        ConfigurableFeatures hasExternalLookupSupport

        ConfigurableFeatures includesFeature:#ExternalLookupSupport

    "

    "Created: / 16-04-2012 / 20:00:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

hasFileBasedSourceCodeManagerSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'FileBasedSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasFileBasedSourceCodeManagerSupport

    "

    "Created: / 21-12-2011 / 17:07:21 / cg"

!

hasFileBasedSourceCodeManagerSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'FileBasedSourceCodeManager'

    "Created: / 21-12-2011 / 17:07:08 / cg"

!

hasGitSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'GitSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasGitSupport

    "

    "Created: / 23-07-2012 / 13:37:09 / cg"

!

hasGitSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'GitSourceCodeManager'

    "

     self hasGitSupportEnabled

    "

    "Created: / 23-07-2012 / 13:37:17 / cg"

!

hasMercurialSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'MercurialSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasMercurialSupport

    "

    "Created: / 18-01-2012 / 10:58:07 / cg"

!

hasMercurialSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'MercurialSourceCodeManager'

    "

     self hasMercurialSupportEnabled

    "

    "Created: / 18-01-2012 / 10:58:12 / cg"

!

hasMonticelloSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'MonticelloSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasMonticelloSupport

    "

    "Created: / 03-01-2012 / 15:44:32 / cg"

!

hasMonticelloSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'MonticelloSourceCodeManager'

    "Created: / 03-01-2012 / 15:44:39 / cg"

!

hasPerforceSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'PerforceSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasPerforceSupport

    "

    "Created: / 03-01-2012 / 15:43:42 / cg"

!

hasPerforceSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'PerforceSourceCodeManager'

    "Created: / 03-01-2012 / 15:43:28 / cg"

!

hasSCMSupportEnabledFor:aSourceCodeManagerClassName

    |scm|

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    scm := Smalltalk at:aSourceCodeManagerClassName ifAbsent:nil.

    ^ scm notNil

        and:[ scm isLoaded 

        and:[ scm shownInBrowserMenus ]]

    "Created: / 18-01-2012 / 10:55:58 / cg"

!

hasSubversionSupport

    "/ use Smalltalk-at to trick the dependency/prerequisite generator

    ^ (Smalltalk at: #'SVNSourceCodeManager' ifAbsent:nil) notNil

    "

     ConfigurableFeatures hasSubversionSupport

    "

    "Created: / 07-09-2011 / 10:40:40 / cg"

    "Modified: / 13-03-2012 / 17:19:13 / Jan Vrany <jan.vrany.fit.cvut.cz>"

!

hasSubversionSupportEnabled

    ^ self hasSCMSupportEnabledFor:#'SVNSourceCodeManager'

    "Created: / 07-09-2011 / 10:41:33 / cg"

! !

!ConfigurableFeatures class methodsFor:'documentation'!

version

    ^ '$Header: /cvs/stx/stx/libbasic/ConfigurableFeatures.st,v 1.9 2012-07-23 11:37:32 cg Exp $'

!

version_CVS

    ^ '$Header: /cvs/stx/stx/libbasic/ConfigurableFeatures.st,v 1.9 2012-07-23 11:37:32 cg Exp $'

! !