ru.vyarus.gradle.plugin.animalsniffer.info.SignatureInfoTask.groovy Maven / Gradle / Ivy
package ru.vyarus.gradle.plugin.animalsniffer.info
import groovy.transform.CompileStatic
import org.gradle.api.DefaultTask
import org.gradle.api.file.FileCollection
import org.gradle.api.tasks.*
/**
* Special task to analyze signature. Based on the analysis you can exclude some not used packages
* to get smaller signature. Supposed to be used for performance tuning of signature generation tasks (from classpath)
* used by check tasks (the smaller signature they produce - the faster check task could run).
*
* Task prints to console amount of classes in packages for configured depth.
*
* @author Vyacheslav Rusakov
* @since 14.05.2017
*/
@CacheableTask
@CompileStatic
class SignatureInfoTask extends DefaultTask {
private static final int EDGE = 1024
private static final String DOT = '.'
private static final int PKG_SP = 10
/**
* Signature files to analyze. Accepts file collection to simplify lazy configuration.
* Most likely, it would be {@code configurations.signature} and {@code animalsnifferCacheMain.outputFiles}.
*/
@SkipWhenEmpty
@InputFiles
FileCollection signature
/**
* Aggregation packages depth.
*/
@Input
@Optional
int depth = 2
/**
* When true, sort output by package size - packages with more classes goes top.
* Useful for reducing signature. When false, use signature order - most likely alphabetical.
*/
@Input
@Optional
boolean sortBySize = true
@TaskAction
void action() {
getSignature().files.each { File signature ->
int dpth = getDepth()
List sig = SignatureReader.readSignature(signature)
logger.warn("Signature ${signature.name} (${formatSize(signature.size())}) contains ${sig.size()} classes")
Map summary = [:]
sig.each {
String[] path = toPaths(it)
// reduce to required depth
if (path.size() > dpth) {
path = path.take(dpth)
}
String key = path.join(DOT)
summary[key] = summary.containsKey(key) ? summary[key] + 1 : 1
}
if (getSortBySize()) {
summary = summary.sort
{ Map.Entry a, Map.Entry b -> -1 * (a.value <=> b.value) }
}
summary.each { key, val -> logger.warn(String.format("\t%-${PKG_SP + dpth * PKG_SP}s %s", key, val)) }
}
}
private String formatSize(long size) {
double preciseSize = size
String label = ['bytes', 'Kb', 'Mb', 'Gb', 'Tb'].find {
if (preciseSize < EDGE) {
true
} else {
preciseSize /= EDGE
false
}
}
return "${String.format(Locale.ENGLISH, '%.1f', preciseSize)} $label"
}
private String[] toPaths(String clazz) {
return clazz[0..clazz.lastIndexOf(DOT)].split('\\.')
}
}