madrob commented on a change in pull request #1199: LUCENE-9134: Port
ant-regenerate tasks to Gradle build
URL: https://github.com/apache/lucene-solr/pull/1199#discussion_r370864083
##########
File path: lucene/queryparser/build.gradle
##########
@@ -7,3 +7,305 @@ dependencies {
testImplementation project(':lucene:test-framework')
}
+
+configure(":lucene:queryparser") {
+ configurations {
+ javaCCDeps
+
+ dependencies {
+ javaCCDeps "net.java.dev.javacc:javacc:5.0"
+ }
+ }
+}
+def conf = [
+ "queryParser": ["inputFile":
file('src/java/org/apache/lucene/queryparser/classic/QueryParser.jj'),
"outputDir": file('src/java/org/apache/lucene/queryparser/classic')],
+ "surround" : ["inputFile":
file('src/java/org/apache/lucene/queryparser/surround/parser/QueryParser.jj'),
"outputDir": file('src/java/org/apache/lucene/queryparser/surround/parser/')],
+ "flexible" : ["inputFile":
file('src/java/org/apache/lucene/queryparser/flexible/standard/parser/StandardSyntaxParser.jj'),
"outputDir":
file('src/java/org/apache/lucene/queryparser/flexible/standard/parser')]
+]
+
+String javaCCClasspath
+String javaCCHome
+
+task installJavacc {
+ doLast {
+ javaCCClasspath =
project.project(":lucene:queryparser").configurations.javaCCDeps.asPath
+ javaCCHome = javaCCClasspath.substring(0, javaCCClasspath.lastIndexOf("/"))
+
+ String hacky = javaCCHome + "/" + "javacc.jar"
+ File hackyFile = new File(hacky)
+ println hackyFile
+ println hackyFile.exists()
+ if (hackyFile.exists() == false) {
+ hackyFile.bytes = new File(javaCCClasspath).bytes
+ hackyFile.setExecutable(true)
+ }
+ }
+}
+String lineSeparator = System.lineSeparator()
+
+task cleanOldGeneratedFiles {
+ doLast {
+ println "Removing old generated files"
+ conf.each { key, val ->
+ val["outputDir"].eachFileMatch ~/.*\.java/, { f ->
+ if (f.text =~ /Generated.*By.*JavaCC/) {
+ f.delete()
+ }
+ }
+ }
+ }
+}
+
+task runJavaccQueryParser(dependsOn: installJavacc) {
Review comment:
I think because there is so much commonality between all of the javacc
tasks, I would create a `task JavaCC` class and put all the clean up logic in
one place rather than repeating it.
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