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package frege.gradle
import org.gradle.api.DefaultTask
import org.gradle.api.tasks.*
import org.gradle.process.internal.DefaultJavaExecAction
import org.gradle.process.internal.JavaExecAction
import org.gradle.api.internal.file.FileResolver
import org.gradle.tooling.BuildException
class FregeTask extends DefaultTask {
static String DEFAULT_CLASSES_SUBDIR = "classes/main" // TODO: should this come from a convention?
static String DEFAULT_SRC_DIR = "src/main/frege" // TODO: should this come from a source set?
@Optional @Input
boolean hints = false
@Optional @Input
boolean verbose = false
@Optional @Input
boolean inline = true
@Optional @Input
boolean make = true
@Optional @Input
boolean skipCompile = false
@Optional @Input
String extraArgs = ""
@Optional @Input
String allArgs = "" // this is an option to overrule all other settings
@Optional @Input
String module = ""
@Optional @InputDirectory
File sourceDir = new File(project.projectDir, DEFAULT_SRC_DIR).exists() ? new File(project.projectDir, DEFAULT_SRC_DIR) : null
@Optional @OutputDirectory
File outputDir = new File(project.buildDir, DEFAULT_CLASSES_SUBDIR)
@TaskAction
void executeCompile() {
if (! outputDir.exists() ) {
logger.info "Creating output directory '${outputDir.absolutePath}'."
outputDir.mkdirs()
}
// access extension configuration values as ${project.frege.key1}
FileResolver fileResolver = getServices().get(FileResolver.class)
JavaExecAction action = new DefaultJavaExecAction(fileResolver)
action.setMain("frege.compiler.Main")
action.setClasspath(project.files(project.configurations.compile))
def args = allArgs ? allArgs.split().toList() : assembleArguments()
logger.info("Calling Frege compiler with args: '$args'")
action.args(args)
action.execute()
}
protected List assembleArguments() {
List args = []
if (hints)
args << "-hints"
if (inline)
args << "-inline"
if (make)
args << "-make"
if (verbose)
args << "-v"
if (skipCompile)
args << "-j"
if (sourceDir != null) {
args << "-sp"
args << sourceDir.absolutePath
}
args << "-d"
args << outputDir
if (!module && !extraArgs) {
logger.info "no module and no extra args given: compiling all of the sourceDir"
if (sourceDir != null) {
args << sourceDir.absolutePath
}
} else if (module) {
logger.info "compiling module '$module'"
args << module
} else {
args = args + extraArgs.split().toList()
}
args
}
}
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