lucene/gradle/generation/antlr.gradle

89 lines
2.6 KiB
Groovy

import java.nio.file.Files
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
configure(project(":lucene:expressions")) {
configurations {
antlr
}
dependencies {
antlr "org.antlr:antlr4"
}
task generateAntlrInternal() {
description "Regenerate Javascript.g4"
group "generation"
dependsOn configurations.antlr
def generatedPatterns = [
"**/JavascriptBaseVisitor.java",
"**/JavascriptLexer.java",
"**/JavascriptParser.java",
"**/JavascriptVisitor.java",
]
def sourceDir = "src/java/org/apache/lucene/expressions/js"
def inputFiles = file("$sourceDir/Javascript.g4")
def tempOutput = file("$buildDir/antlr")
def outputFiles = fileTree(dir: sourceDir, includes: generatedPatterns)
inputs.files inputFiles
outputs.files outputFiles
doFirst {
project.delete tempOutput
project.javaexec {
main = "org.antlr.v4.Tool"
classpath = configurations.antlr
ignoreExitValue false
args = [
"-no-listener",
"-visitor",
"-package", "org.apache.lucene.expressions.js",
"-o", tempOutput,
inputFiles
]
}
def generatedFiles = fileTree(dir: tempOutput, includes: generatedPatterns)
generatedFiles.each { file ->
modifyFile(file, { text ->
text = text.replaceAll("public ((interface|class) Javascript\\w+)", "\$1")
text = text.replaceAll("// Generated from .*", "// ANTLR GENERATED CODE: DO NOT EDIT")
return text
})
}
project.copy {
from tempOutput
into sourceDir
include generatedPatterns
}
}
}
def generateAntlr = wrapWithPersistentChecksums(
generateAntlrInternal, [ andThenTasks: ["spotlessJava", "spotlessJavaApply"] ])
regenerate.dependsOn generateAntlr
}