/* Copyright (c) Jython Developers */
package org.python;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Collection;
import java.util.EnumSet;
import java.util.Properties;
import java.util.Set;
import org.python.core.CodeFlag;
/**
* Jython version information.
*
* The version number and build information are loaded from the
* version.properties file, located in this class file's
* directory. version.properties is generated by ant.
*/
public class Version {
/** The current version of Jython. */
public static String PY_VERSION;
/** Tokenized version. */
public static int PY_MAJOR_VERSION;
public static int PY_MINOR_VERSION;
public static int PY_MICRO_VERSION;
public static int PY_RELEASE_LEVEL;
public static int PY_RELEASE_SERIAL;
/** Timestamp and revision number of the current build. */
public static String DATE;
public static String TIME;
public static String SVN_REVISION;
/** Current hg global revision id (hg id -i). */
public static String HG_VERSION;
/** Determined from headURL, branch is the path under the
* subversion root, e.g. branches/asm. */
public static String BRANCH;
/** Short version of branch, e.g. asm. */
public static String SHORT_BRANCH;
/** Current hg branch (hg id -b). */
public static String HG_BRANCH;
/** Current hg tag (hg id -t), e.g. 'tip'. */
public static String HG_TAG;
/** The flags that are set by default in a code object. */
private static final Collection<CodeFlag> defaultCodeFlags = Arrays.asList(
CodeFlag.CO_NESTED, CodeFlag.CO_GENERATOR_ALLOWED, CodeFlag.CO_FUTURE_WITH_STATEMENT);
private static final String headURL =
"$HeadURL: https://jython.svn.sourceforge.net/svnroot/jython/trunk/jython/src/org/python/Version.java $";
static {
initVersion();
}
/**
* Load the version information and determine BRANCH and
* SHORT_BRANCH from headURL.
*/
private static void initVersion() {
loadProperties();
int jython = headURL.indexOf("/jython/");
if (jython > -1) {
int brStart = jython + 8;
String end = headURL.substring(brStart, headURL.length());
if (end.startsWith("trunk/")) {
BRANCH = SHORT_BRANCH = "trunk";
return;
} else if (end.startsWith("tags/") || end.startsWith("branches/")) {
int brEnd = end.indexOf('/');
int brEnd2 = end.indexOf('/', brEnd + 1);
if (brEnd2 > -1) {
BRANCH = end.substring(0, brEnd2);
SHORT_BRANCH = end.substring(brEnd + 1, brEnd2);
return;
}
}
}
BRANCH = "";
SHORT_BRANCH = "unknown";
}
/**
* Load the version information from the properties file.
*/
private static void loadProperties() {
boolean loaded = false;
final String versionProperties = "/org/python/version.properties";
InputStream in = Version.class.getResourceAsStream(versionProperties);
if (in != null) {
try {
Properties properties = new Properties();
properties.load(in);
loaded = true;
PY_VERSION = properties.getProperty("jython.version");
PY_MAJOR_VERSION = Integer.valueOf(properties.getProperty("jython.major_version"));
PY_MINOR_VERSION = Integer.valueOf(properties.getProperty("jython.minor_version"));
PY_MICRO_VERSION = Integer.valueOf(properties.getProperty("jython.micro_version"));
PY_RELEASE_LEVEL = Integer.valueOf(properties.getProperty("jython.release_level"));
PY_RELEASE_SERIAL = Integer.valueOf(properties.getProperty("jython.release_serial"));
DATE = properties.getProperty("jython.build.date");
TIME = properties.getProperty("jython.build.time");
SVN_REVISION = properties.getProperty("jython.build.svn_revision");
HG_BRANCH = properties.getProperty("jython.build.hg_branch");
HG_TAG = properties.getProperty("jython.build.hg_tag");
HG_VERSION = properties.getProperty("jython.build.hg_version");
} catch (IOException ioe) {
System.err.println("There was a problem loading ".concat(versionProperties)
.concat(":"));
ioe.printStackTrace();
} finally {
try {
in.close();
} catch (IOException ioe) {
// ok
}
}
}
if (!loaded) {
// fail with a meaningful exception (cannot use Py exceptions here)
throw new RuntimeException("unable to load ".concat(versionProperties));
}
}
/**
* Return the current subversion revision number. May be an empty
* string on environments that can't determine it.
*/
public static String getSubversionRevision() {
return SVN_REVISION;
}
/**
* Return the current branch name.
*/
public static String getSubversionShortBranch() {
return SHORT_BRANCH;
}
/**
* Return the current hg version number. May be an empty string on environments that
* can't determine it.
*/
public static String getHGVersion() {
return HG_VERSION;
}
/**
* Return the current hg identifier name, either the current branch or tag.
*/
public static String getHGIdentifier() {
return "".equals(HG_TAG) || "tip".equals(HG_TAG) ? HG_BRANCH : HG_TAG;
}
/**
* Return the current build information, including revision and
* timestamp.
*/
public static String getBuildInfo() {
if (HG_VERSION != null && !"".equals(HG_VERSION)) {
return getBuildInfoHG();
}
String revision = getSubversionRevision();
String sep = "".equals(revision) ? "" : ":";
String branch = getSubversionShortBranch();
return String.format("%s%s%s, %.20s, %.9s", branch, sep, revision, DATE, TIME);
}
/**
* Return the current build information, including revision and timestamp.
*/
public static String getBuildInfoHG() {
String revision = getHGVersion();
String sep = "".equals(revision) ? "" : ":";
String hgId = getHGIdentifier();
return String.format("%s%s%s, %.20s, %.9s", hgId, sep, revision, DATE, TIME);
}
/**
* Describe the current Java VM.
*/
public static String getVM() {
return String.format("\n[%s (%s)]", System.getProperty("java.vm.name"),
System.getProperty("java.vm.vendor"));
}
/**
* Return the Python version, including compiler (or in our case,
* the Java VM).
*/
public static String getVersion() {
return String.format("%.80s (%.80s) %.80s", PY_VERSION, getBuildInfo(), getVM());
}
public static Set<CodeFlag> getDefaultCodeFlags() {
return EnumSet.copyOf(defaultCodeFlags);
}
}