/jEdit/tags/jedit-4-5-pre1/installer/Install.java
Java | 163 lines | 121 code | 20 blank | 22 comment | 19 complexity | 9fcbab995b98d55101eea629d539d3fe MD5 | raw file
Possible License(s): BSD-3-Clause, AGPL-1.0, Apache-2.0, LGPL-2.0, LGPL-3.0, GPL-2.0, CC-BY-SA-3.0, LGPL-2.1, GPL-3.0, MPL-2.0-no-copyleft-exception, IPL-1.0
- /*
- * Install.java - Main class of the installer
- *
- * Originally written by Slava Pestov for the jEdit installer project. This work
- * has been placed into the public domain. You may use this work in any way and
- * for any purpose you wish.
- *
- * THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND, NOT EVEN THE
- * IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR OF THIS SOFTWARE, ASSUMES
- * _NO_ RESPONSIBILITY FOR ANY CONSEQUENCE RESULTING FROM THE USE, MODIFICATION,
- * OR REDISTRIBUTION OF THIS SOFTWARE.
- */
- package installer;
- import javax.swing.plaf.metal.*;
- import javax.swing.*;
- import java.io.*;
- import java.util.Properties;
- import java.security.*;
- import java.net.URL;
- public class Install
- {
- /**
- * detects wether the installer is running from a path
- * containing exclamation marks.
- * This has been reported as a cause of failure on Linux and MS Windows :
- * see bug #2065330 - Installer doesn't run on dir having ! as last char in name.
- */
- private static boolean isRunningFromExclam()
- {
- Class me = Install.class;
- ProtectionDomain domaine = me.getProtectionDomain();
- CodeSource source = domaine.getCodeSource();
- URL mySource = source.getLocation();
- // In fact the check is more restrictive than required :
- // a problem occurs only when the ! is at the end of directory
- return mySource.toString().contains("!");
- }
-
- private static void errorAndExit(boolean isGUI, String message)
- {
- if(isGUI)
- {
- JTextArea messageCnt = new JTextArea(message);
- JOptionPane.showMessageDialog(null,
- messageCnt,
- "jEdit installer error...", JOptionPane.ERROR_MESSAGE);
- }
- else
- {
- System.err.println(message);
- }
- System.exit(1);
- }
-
- public static void main(String[] args)
- {
- boolean isGUI = args.length == 0;
-
- String javaVersion = System.getProperty("java.version");
- if(javaVersion.compareTo("1.6") < 0)
- {
- errorAndExit(isGUI,
- "You are running Java version "
- + javaVersion + " from "+System.getProperty("java.vendor")+".\n"
- +"This installer requires Java 1.6 or later.");
- }
- if(isRunningFromExclam())
- {
- errorAndExit(isGUI,
- "You are running the installer from a directory containing exclamation marks."
- + "\nIt is a known cause of failure of the installer"
- + "\n(http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4523159 for the curious ones)."
- + "\nPlease move the installer somewhere else and run it again.");
- }
- if(isGUI)
- new SwingInstall();
- else if(args.length == 1 && args[0].equals("text"))
- new ConsoleInstall();
- else if(args.length >= 2 && args[0].equals("auto"))
- new NonInteractiveInstall(args);
- else
- {
- System.err.println("Usage:");
- System.err.println("java -jar <installer JAR>");
- System.err.println("java -jar <installer JAR> text");
- System.err.println("java -jar <installer JAR> auto"
- + " <install dir> [unix-script=<dir>] [unix-man=<dir>]");
- System.err.println("text parameter starts installer in text-only mode.");
- System.err.println("auto parameter starts installer in non-interactive mode.");
- }
- }
- public Install()
- {
- props = new Properties();
- try
- {
- InputStream in = getClass().getResourceAsStream("/installer/install.props");
- props.load(in);
- in.close();
- }
- catch(IOException io)
- {
- System.err.println("Error loading 'install.props':");
- io.printStackTrace();
- }
- buf = new byte[32768];
- }
- public String getProperty(String name)
- {
- return props.getProperty(name);
- }
- public int getIntegerProperty(String name)
- {
- try
- {
- return Integer.parseInt(props.getProperty(name));
- }
- catch(Exception e)
- {
- return -1;
- }
- }
- public void copy(InputStream in, String outfile, Progress progress)
- throws IOException
- {
- File outFile = new File(outfile);
- OperatingSystem.getOperatingSystem().mkdirs(outFile.getParent());
- BufferedOutputStream out = new BufferedOutputStream(
- new FileOutputStream(outFile));
- int count;
- for(;;)
- {
- count = in.read(buf,0,Math.min(in.available(),buf.length));
- if(count == -1 || count == 0)
- break;
- out.write(buf,0,count);
- if(progress != null)
- progress.advance(count);
- }
- //in.close();
- out.close();
- }
- // private members
- private Properties props;
- private byte[] buf;
- }