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GeneratePoms.groovy
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GeneratePoms.groovy
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import groovy.util.NodeBuilder
import groovy.util.XmlNodePrinter
import groovy.util.XmlParser
/**
* @author Patrick Wong
* I tried not to use too many Groovy-isms, except for the manipulation of Groovy Nodes.
*
* Running an XmlParser seems to be an expensive operation, unfortunately. The node clone and XML output is fast though.
*/
class GenerateUserFacingPoms {
static void main(String[] args) {
if (args.length < 2) {
System.err << "Need two args: the full HBase version, and the full mapr-hbase version"
System.exit(1)
} else if (args.length > 2) {
System.err << "Too many args. Need exactly two args: the full HBase version, and the full mapr-hbase version"
System.exit(1)
}
String privateHbaseVersion = args[0]
String maprHbaseVersion = args[1]
println "Full HBase version was read as: " + privateHbaseVersion
println "Full mapr-hbase version was read as: " + maprHbaseVersion
File originalPomFile = new File("pom.xml")
XmlParser xmlIn = new XmlParser()
xmlIn.setTrimWhitespace(true)
Node pomTree = xmlIn.parse(originalPomFile)
Node newPomTree = pomTree.clone()
newPomTree.version[0].setValue(privateHbaseVersion)
newPomTree.properties[0]."mapr.hadoop.version"[0].setValue(maprHbaseVersion)
NodeBuilder builder = new NodeBuilder()
Node maprHbaseDependency = builder.dependency() {
groupId "com.mapr.fs"
artifactId "mapr-hbase"
version "\${mapr.hadoop.version}"
scope "runtime"
}
newPomTree.dependencies[0].append(maprHbaseDependency)
StringWriter writer = new StringWriter()
XmlNodePrinter xmlOut = new XmlNodePrinter(new PrintWriter(writer))
xmlOut.setPreserveWhitespace(true)
xmlOut.setExpandEmptyElements(false)
xmlOut.print(newPomTree)
File outputPomFile = new File("pom-userfacing-" + maprHbaseVersion + "-generated.xml")
outputPomFile.write(writer.toString())
}
}