org.robovm.compiler.Version Maven / Gradle / Ivy
/*
* Copyright (C) 2012 Trillian Mobile AB
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package org.robovm.compiler;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.apache.commons.io.IOUtils;
/**
* Reads the compiler version from auto generated version.properties file.
*/
public class Version {
private static String version = null;
/**
* Returns the version number of the compiler by reading the version.properties
* file.
*
* @return the version.
*/
public static String getVersion() {
if (version != null) {
return version;
}
InputStream is = null;
try {
is = Version.class.getResourceAsStream("/version.properties");
Properties props = new Properties();
props.load(is);
version = props.getProperty("version");
return version;
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
IOUtils.closeQuietly(is);
}
}
/**
* Converts a version string on the form x.y.z into an integer which can
* be compared to other versions converted into integers.
*/
static long toLong(String v) {
String buildPart = "1";
long buildType = 700;
if (v.endsWith("-SNAPSHOT")) {
buildPart = "";
v = v.substring(0, v.indexOf("-SNAPSHOT"));
buildType = 0;
} else if (v.contains("-alpha-")) {
buildPart = v.substring(v.lastIndexOf('-') + 1);
v = v.substring(0, v.indexOf("-alpha-"));
buildType = 100;
} else if (v.contains("-beta-")) {
buildPart = v.substring(v.lastIndexOf('-') + 1);
v = v.substring(0, v.indexOf("-beta-"));
buildType = 300;
} else if (v.contains("-rc-")) {
buildPart = v.substring(v.lastIndexOf('-') + 1);
v = v.substring(0, v.indexOf("-rc-"));
buildType = 500;
}
String[] parts = v.split("\\.");
if (parts.length > 3) {
throw new IllegalArgumentException("Illegal version number: " + v);
}
long major = parts.length > 0 ? Long.parseLong(parts[0]) : 0;
long minor = parts.length > 1 ? Long.parseLong(parts[1]) : 0;
long rev = parts.length > 2 ? Long.parseLong(parts[2]) : 0;
long build = buildPart.isEmpty() ? 0 : Long.parseLong(buildPart);
long result = (((major * 1000 + minor) * 1000 + rev) * 1000) + build + buildType;
return result;
}
/**
* Returns true if this version is less than the specified
* version number.
*/
public static boolean isOlderThan(String otherVersion) {
return toLong(getVersion()) < toLong(otherVersion);
}
public static void main(String[] args) {
System.out.println(toLong("1.0.0-alpha-01"));
}
}