Mac / Mozilla / Open Source / XRap

Using Mozilla to create a dmg…Part II

I finally got access to a Mac which I can develop on, and after about 30 minutes of learning how to use it (I haven’t used one since grade school), it was amazing!  Yes I want a Macbook now, but that’s another post.  The first job for creating a dmg on a Mac using the Mozilla code, is actually getting it to run XUL apps.  To do this you must first download and install XULRunner, which conviently for Mac is just a standard installer.   Once installed, the XULRunner runtime is placed in:

/Library/Frameworks/XUL.framework/

This will make available ‘xulrunner-bin’, which will be needed to run the XUL app.  I noticed (and liked) that the XULRunner runtime is installed in a default location similar to Linux and unlike Windows, where it is just where you put it, and you have to set a bunch of environment variable to point to it.  To run a XUL app, is almost just as easy, there are two ways:

Install the application:
 /Library/Frameworks/XUL.framework/xulrunner-bin –install-app /absolute/path/to/app.zip

Run the application (without install):
  /Library/Frameworks/XUL.framework/xulrunner-bin /absolute/path/to/application.ini

If you choose to install the application, it can be a XUL app packaged in a zip file or a folder of a XUL app, but it will conviniently put your installation into the:

/Applications/<vendor>/<appName>/

You can then run the app.  If your developing, it may be a better idea to simply run the application, however there is a warning on MDC that the menu bar and dock icon may be missing.  From experience, on my first run, the command executed, and I got nothing, and the bash prompt appeared, so I ran it again and I received a message that the app was already running.  No window opened or anything, so I just closed the Terminal, refactored my code (I think there were some errors in it), and ran it again, with success.  

Once I got my app working, running the ‘pkg-dmg‘ was simple, and it worked brilliantly!  From mozilla-central, I stored only the folders leading to the ‘pkg-dmg’ file, then all the files in the folder.  So basically, ‘mozilla-central/build/package/mac_osx/‘ , then all the files in /mac_osx.  I made some modifications for my XRap release, by putting ‘pkg-dmg’ command in a script and calling it, but this is basically how it should work:

    var getWorkingDir= Components.classes[“@mozilla.org/file/directory_service;1”]     .getService(Components.interfaces.nsIProperties)                    .get(“CurProcD”, Components.interfaces.nsIFile);

    var dmgLoc = getWorkingDir.clone();
    dmgLoc.append(“mozilla-central”);
    dmgLoc.append(“build”);
    dmgLoc.append(“package”);
    dmgLoc.append(“mac_osx”);
    dmgLoc.append(“pkg-dmg”);
    process.init(file);
    var args = [“–source “,applicationPath ,” –target “,applicationPath + “.dmg”];
    process.run(true,args,args.length);

And work it did!  Here is an example, when I called it from bash

pkgdmgrun2

Mount and go!

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