Autoupdater (jar)

[Ericthecmh]

This might not be the best way to write an autoupdater, but it's the way I've done it:

 

Setup:

 

On server, have the jar file (CMHEssMiner.jar) and a versioninfo file.

• CMHEssMiner.jar is the jar file (duh)
• versioninfo contains one line with the version (eg. "0.8.3 BETA" -- no quotes)

In the code, create a constant:

public final String version = "0.8.3 BETA"

in the onStart method:

URL url = null;
try {
	url = new URL("http://osbot.no-ip.org/distfiles/versioninfo");
} catch (MalformedURLException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}
InputStream is = null;
try {
	is = url.openConnection().getInputStream();
} catch (IOException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
try {
	String line = reader.readLine();
	if (!line.equals(currentVersion)) {
		updateScript(line);
		canStart = false;
		return;
	}
} catch (IOException e) {
}

I created a separate method for the updating part:

private void updateScript(String version) {
	try {
		URL url = new URL(
				"http://osbot.no-ip.org/distfiles/CMHEssMiner.jar");
		InputStream in = url.openStream();
		int bytesRead;
		byte[] buf = new byte[4 * 1024];
		String filename;
		if (System.getProperty("os.name").startsWith("Window")) {
			filename = "\\OSBot\\scripts\\CMHEssMiner.jar";
		} else {
			filename = "/OSBot/scripts/CMHEssMiner.jar";
		}
		OutputStream os = (new FileOutputStream(
				System.getProperty("user.home") + filename));
		while ((bytesRead = in.read(buf)) != -1) {
			os.write(buf, 0, bytesRead);
		}
		os.flush();
		os.close();
		in.close();
		JOptionPane.showMessageDialog(null, "Script has been automatically updated to version" + version + ". Please refresh your scripts list and run the script again.");
	} catch (Exception e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}

If anyone has a better way to do this or suggestions, I'd love to hear them

Eric

[Diclonius]

Looks nice, only thing I can think to suggest is using getVersion() and update the version in the script manifest instead of making a new variable to hold the version

[Ericthecmh]

Looks nice, only thing I can think to suggest is using getVersion() and update the version in the script manifest instead of making a new variable to hold the version

 

The version variable in the script manifest is a double right? That wouldn't allow me to number my versions as things like 0.8.3 because 0.8.3 can't be stored as a double. But yeah it does get annoying to change the version number in three different places instead of just updating the version in the script manifest :P

 

Eric

[Diclonius]

Yeah and also say I was releasing version 30 of my script, I would write the version as 1.30 but it becomes 1.3

Edited July 11, 2013 by Diclonius

[H0ppy]

Yeah and also say I was releasing version 30 of my script, I would write the version as 1.30 but it becomes 1.3

Time to release 2.0 then xD

Nice updater!

I'll test this out and improve if I can!

Thx for thx for the snippet!

Grtz

H0ppy

[Doout]

This part of the script is useless

		if (System.getProperty("os.name").startsWith("Window")) {
			filename = "\\OSBot\\scripts\\CMHEssMiner.jar";
		} else {
			filename = "/OSBot/scripts/CMHEssMiner.jar";
		}

just use "/" for both.

[Ericthecmh]

This part of the script is useless

		if (System.getProperty("os.name").startsWith("Window")) {
			filename = "\\OSBot\\scripts\\CMHEssMiner.jar";
		} else {
			filename = "/OSBot/scripts/CMHEssMiner.jar";
		}

just use "/" for both.

 

Does windows take both? I didn't know that. Thanks

 

Eric

[Cory]

 

This part of the script is useless

		if (System.getProperty("os.name").startsWith("Window")) {
			filename = "\\OSBot\\scripts\\CMHEssMiner.jar";
		} else {
			filename = "/OSBot/scripts/CMHEssMiner.jar";
		}

just use "/" for both.

 

Does windows take both? I didn't know that. Thanks

 

Eric

 

 

If you really wanted it to be cross platform, just use

System.getProperty("file.separator")

[Kronos]

If you really wanted it to be cross platform, just use

System.getProperty("file.separator")

 

The only correct answer I've seen on this topic

 

Also "user.dir" will give you OSBot's directory:

String fs = System.getProperty("file.separator");
String dir = System.getProperty("user.dir") + fs + "scripts" + fs + jarName;

All in all quite a good updater though. A bit sad that this isn't already included in the client.

Normally you would write the file to a temp location just in case the existing one is currently being used, but in OSBot's case you don't need to.

Edited July 18, 2013 by Kronos