org.fusesource.jansi.AnsiMain Maven / Gradle / Ivy
Show all versions of log4j-core Show documentation
/*
* Copyright (C) 2009-2017 the original author(s).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fusesource.jansi;
import static org.fusesource.jansi.Ansi.ansi;
import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.Reader;
import java.util.Properties;
import org.fusesource.hawtjni.runtime.Library;
import org.fusesource.jansi.internal.CLibrary;
import static org.fusesource.jansi.internal.CLibrary.isatty;
/**
* Main class for the library, providing executable jar to diagnose Jansi setup.
* If no system property is set and output is sent to a terminal (no redirect to a file):
*
* - any terminal on any Unix should get
RESET_ANSI_AT_CLOSE mode,
* - on Windows, Git-bash or Cygwin terminals should get
RESET_ANSI_AT_CLOSE mode also, since they
* support natively ANSI escape sequences like any Unix terminal,
* - on Windows, cmd.exe, PowerShell or Git-cmd terminals should get
WINDOWS mode.
*
* If stdout is redirected to a file (> out.txt), System.out should switch to STRIP_ANSI.
* Same for stderr redirection (2> err.txt) which should affect System.err mode.
* The results will vary if you play with jansi.passthrough, jansi.strip or
* jansi.force system property, or if you redirect output to a file.
*
If you have a specific situation that is not covered, please report precise conditions to reproduce
* the issue and ideas on how to detect precisely the affected situation.
* @see AnsiConsole
*/
public class AnsiMain {
public static void main(String... args) throws IOException {
System.out.println("Jansi " + getJansiVersion()
+ " (Jansi native " + getPomPropertiesVersion("org.fusesource.jansi/jansi-native")
+ ", HawtJNI runtime " + getPomPropertiesVersion("org.fusesource.hawtjni/hawtjni-runtime") + ")");
System.out.println();
// info on native library
System.out.println("library.jansi.path= " + System.getProperty("library.jansi.path", ""));
System.out.println("library.jansi.version= " + System.getProperty("library.jansi.version", ""));
Library lib = new Library("jansi", CLibrary.class);
lib.load();
System.out.println("Jansi native library loaded from " + lib.getNativeLibraryPath());
if (lib.getNativeLibrarySourceUrl() != null) {
System.out.println(" which was auto-extracted from " + lib.getNativeLibrarySourceUrl());
}
System.out.println();
System.out.println("os.name= " + System.getProperty("os.name") + ", "
+ "os.version= " + System.getProperty("os.version") + ", "
+ "os.arch= " + System.getProperty("os.arch"));
System.out.println("file.encoding= " + System.getProperty("file.encoding"));
System.out.println("java.version= " + System.getProperty("java.version") + ", "
+ "java.vendor= " + System.getProperty("java.vendor") + ","
+ " java.home= " + System.getProperty("java.home"));
System.out.println();
System.out.println("jansi.passthrough= " + Boolean.getBoolean("jansi.passthrough"));
System.out.println("jansi.strip= " + Boolean.getBoolean("jansi.strip"));
System.out.println("jansi.force= " + Boolean.getBoolean("jansi.force"));
System.out.println(Ansi.DISABLE + "= " + Boolean.getBoolean(Ansi.DISABLE));
System.out.println();
System.out.println("IS_WINDOWS: " + AnsiConsole.IS_WINDOWS);
if (AnsiConsole.IS_WINDOWS) {
System.out.println("IS_CYGWIN: " + AnsiConsole.IS_CYGWIN);
System.out.println("IS_MINGW_XTERM: " + AnsiConsole.IS_MINGW_XTERM);
}
System.out.println();
diagnoseTty(false); // System.out
diagnoseTty(true); // System.err
AnsiConsole.systemInstall();
System.out.println();
System.out.println("Resulting Jansi modes for stout/stderr streams:");
System.out.println(" - System.out: " + AnsiConsole.JANSI_STDOUT_TYPE);
System.out.println(" - System.err: " + AnsiConsole.JANSI_STDERR_TYPE);
System.out.println("modes description:");
int n = 1;
for(AnsiConsole.JansiOutputType type: AnsiConsole.JansiOutputType.values()) {
System.out.println(n++ + ". " + type + ": " + type.getDescription());
}
try {
System.out.println();
testAnsi(false);
testAnsi(true);
if (args.length == 0) {
printJansiLogoDemo();
return;
}
System.out.println();
if (args.length == 1) {
File f = new File(args[0]);
if (f.exists())
{
// write file content
System.out.println(ansi().bold().a("\"" + args[0] + "\" content:").reset());
writeFileContent(f);
return;
}
}
// write args without Jansi then with Jansi AnsiConsole
System.out.println(ansi().bold().a("original args:").reset());
int i = 1;
for (String arg: args) {
AnsiConsole.system_out.print(i++ + ": ");
AnsiConsole.system_out.println(arg);
}
System.out.println(ansi().bold().a("Jansi filtered args:").reset());
i = 1;
for (String arg: args) {
System.out.print(i++ + ": ");
System.out.println(arg);
}
} finally {
AnsiConsole.systemUninstall();
}
}
private static String getJansiVersion() {
Package p = AnsiMain.class.getPackage();
return ( p == null ) ? null : p.getImplementationVersion();
}
private static void diagnoseTty(boolean stderr) {
int fd = stderr ? CLibrary.STDERR_FILENO : CLibrary.STDOUT_FILENO;
int isatty = isatty(fd);
System.out.println("isatty(STD" + (stderr ? "ERR" : "OUT") + "_FILENO): " + isatty + ", System."
+ (stderr ? "err" : "out") + " " + ((isatty == 0) ? "is *NOT*" : "is") + " a terminal");
}
private static void testAnsi(boolean stderr) {
@SuppressWarnings( "resource" )
PrintStream s = stderr ? System.err : System.out;
s.print("test on System." + (stderr ? "err" : "out") + ":");
for(Ansi.Color c: Ansi.Color.values()) {
s.print(" " + ansi().fg(c) + c + ansi().reset());
}
s.println();
s.print(" bright:");
for(Ansi.Color c: Ansi.Color.values()) {
s.print(" " + ansi().fgBright(c) + c + ansi().reset());
}
s.println();
s.print(" bold:");
for(Ansi.Color c: Ansi.Color.values()) {
s.print(" " + ansi().bold().fg(c) + c + ansi().reset());
}
s.println();
}
private static String getPomPropertiesVersion(String path) throws IOException {
InputStream in = AnsiMain.class.getResourceAsStream("/META-INF/maven/" + path + "/pom.properties");
if (in == null) {
return null;
}
try {
Properties p = new Properties();
p.load(in);
return p.getProperty("version");
} finally {
closeQuietly(in);
}
}
private static void printJansiLogoDemo() throws IOException {
Reader in = new InputStreamReader(AnsiMain.class.getResourceAsStream("jansi.txt"), "UTF-8");
try {
char[] buf = new char[1024];
int l = 0;
while ((l = in.read(buf)) >= 0) {
for(int i = 0; i < l; i++) {
System.out.print(buf[i]);
}
}
} finally {
closeQuietly(in);
}
}
private static void writeFileContent(File f) throws IOException {
InputStream in = new FileInputStream(f);
try {
byte[] buf = new byte[1024];
int l = 0;
while ((l = in.read(buf)) >= 0) {
System.out.write(buf, 0, l);
}
} finally {
closeQuietly(in);
}
}
private static void closeQuietly(Closeable c) {
try {
c.close();
} catch (IOException ioe) {
ioe.printStackTrace(System.err);
}
}
}