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+ Support ANSI color output on Linux / Mac

This commit is contained in:
Reinhard Pointner 2016-10-18 02:22:34 +08:00
parent 1a9c7063ae
commit 3a27c58fdd
1 changed files with 86 additions and 18 deletions
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104
source/net/filebot/Logging.java
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@ -20,8 +20,9 @@ import net.filebot.util.SystemProperty;
public final class Logging {
private static final SystemProperty<Pattern> anonymizePattern = SystemProperty.of("net.filebot.logging.anonymize", Pattern::compile);
private static final SystemProperty<Level> debugLevel = SystemProperty.of("net.filebot.logging.debug", Level::parse, Level.WARNING);
private static final SystemProperty<Pattern> anonymizePattern = SystemProperty.of("net.filebot.logging.anonymize", Pattern::compile);
private static final SystemProperty<Boolean> color = SystemProperty.of("net.filebot.logging.color", Boolean::parseBoolean, Color::isSupported);
public static final Logger log = createConsoleLogger("net.filebot.console", Level.ALL);
public static final Logger debug = createConsoleLogger("net.filebot.debug", debugLevel.get());
@ -41,7 +42,7 @@ public final class Logging {
}
public static ConsoleHandler createConsoleHandler(Level level) {
ConsoleHandler handler = new ConsoleHandler();
ConsoleHandler handler = color.get() ? new AnsiColorConsoleHandler() : new ConsoleHandler();
handler.setLevel(level);
handler.setFormatter(new ConsoleFormatter(anonymizePattern.get()));
return handler;
@ -65,6 +66,25 @@ public final class Logging {
};
}
public static class ConsoleFormatter extends Formatter {
private final Pattern anonymize;
public ConsoleFormatter(Pattern anonymize) {
this.anonymize = anonymize;
}
@Override
public String format(LogRecord record) {
String message = record.getMessage();
if (anonymize != null && message != null) {
message = anonymize.matcher(message).replaceAll("");
}
return message + System.lineSeparator();
}
}
public static class ConsoleHandler extends Handler {
@Override
@ -72,16 +92,20 @@ public final class Logging {
// use either System.out or System.err depending on the severity of the error
PrintStream out = record.getLevel().intValue() < Level.WARNING.intValue() ? System.out : System.err;
// print messages
// print messages to selected output stream
print(record, out);
// flush every message immediately
out.flush();
}
public void print(LogRecord record, PrintStream out) {
out.print(getFormatter().format(record));
Throwable thrown = record.getThrown();
if (thrown != null) {
StackTraceUtils.deepSanitize(thrown).printStackTrace(out);
}
// flush every message immediately
out.flush();
}
@Override
@ -97,22 +121,66 @@ public final class Logging {
}
public static class ConsoleFormatter extends Formatter {
private final Pattern anonymize;
public ConsoleFormatter(Pattern anonymize) {
this.anonymize = anonymize;
}
public static class AnsiColorConsoleHandler extends ConsoleHandler {
@Override
public String format(LogRecord record) {
String message = record.getMessage();
if (anonymize != null && message != null) {
message = anonymize.matcher(message).replaceAll("");
public void print(LogRecord record, PrintStream out) {
Color c = getColor(record.getLevel().intValue());
if (c == null) {
super.print(record, out);
} else {
out.print(c.head);
super.print(record, out);
out.print(c.tail);
}
return message + System.lineSeparator();
}
public Color getColor(int level) {
if (level >= Level.SEVERE.intValue())
return Color.CHERRY_RED;
if (level >= Level.WARNING.intValue())
return Color.ORANGE_RED;
if (level >= Level.INFO.intValue())
return null;
if (level >= Level.FINE.intValue())
return Color.ROYAL_BLUE;
if (level >= Level.FINEST.intValue())
return Color.LIME_GREEN;
return null;
}
}
public static class Color {
public static final Color CHERRY_RED = new Color(0xC4);
public static final Color ORANGE_RED = new Color(0xCA);
public static final Color ROYAL_BLUE = new Color(0x28);
public static final Color LIME_GREEN = new Color(0x27);
public final String head;
public final String tail;
Color(int color) {
this("38;5;" + color); // see https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
}
Color(String code) {
this.head = "\u001b[" + code + "m";
this.tail = "\u001b[0m";
}
public String colorize(String message) {
return head + message + tail;
}
public static boolean isSupported() {
// enable ANSI colors on a standard terminal (if running with interactive console)
return System.console() != null && "xterm-256color".equals(System.getenv("TERM"));
}
}
}