Build a MacOS app bundle

[srid]

Build a MacOS app bundle using instructions at http://mesonbuild.com/Creating-OSX-packages.html.
Depends on #31

Original Description:
Would be nice to have a Nix package

https://nixos.org/
https://github.com/NixOS/nixpkgs

@onkarshinde Just a suggestion. Give Nix a try (NixOS is the Linux distro that uses Nix). With Nix we can build packages for Linux & Mac. Nix is a pretty interesting way to package up things.

[onkarshinde]

I am not sure I want to pursue build changes to achieve packages for OS X. I don't have access to OS X so any changes I make can not be tested. I also did not find any hosted continuous integration solutions for OS X, at least not any which are free.

On the other hand before you logged this issue I had already started looking into meson as new build system. The build files will be easy to read and the document suggests that it is multi platform.

[onkarshinde]

Turns out I was wrong. Travis CI does provide a way to build application on OS X, allows libraries to be installed from homebrew and other sources and it is free for open source applications.
So in theory we should be able to ensure that our application is buildable on OS X. Perhaps in future we can also create a application bundle.

[onkarshinde]

Managed to borrow someone's MacBook, installed gtksourceview3 from homebrew, built and installed our application. Here is the result.

[onkarshinde]

@srid
If you login to http://travis-ci.org/ with your github login you should be able to the continuation integration at work. Hopefully I will now be able to make use of meson to build OS X app bundle at some point.

[onkarshinde]

Can you do
ls -l GNUSim8085.app/Contents/libs/libpangocairo-1.0.0.dylib
I think instead of including the actual dylib file, a symlink has been included in the package.

[onkarshinde]

Can you also do
otool -L GNUSim8085.app/Contents/libs/libpango-1.0.0.dylib

[onkarshinde]

Found the problem. Give me few minutes.

[onkarshinde]

@srid Please try latest test build.

[srid]

It crashes. Also seeing `2018-10-25 12:14:35.444 open[81289:4024643] There was an error parsing the Info.plist for the bundle at URL <0x7ff210b00d70>: NSCocoaErrorDomain - 3840`

…

[onkarshinde]

@srid
Can you please give a try for the bundle included in latest draft release?

[srid]

@onkarshinde I happened to give this a try now. For the record I used:

• gnusim8085_macos-1.4.1.20190303.app.zip from Draft release
• macOS catalina

And ... it basically works. Screenshot below:

There are some bugs. For example, in the About dialog when I click the "Website" link it errors out saying "Could not show link: Operation not permitted". The text editor doesn't understand macOS keyboard shortcuts; for eg., it expects ctrl+a instead of cmd+a to select text.

Most serious bug: when I tried to run the nqueens.asm example program, it simply froze. Simple programs like addwithcarry.asm run fine.

[onkarshinde]

@srid Did you manage to open/save a file?

[rDinesh008]

Managed to borrow someone's MacBook, installed gtksourceview3 from homebrew, built and installed our application. Here is the result.

from where and how did u install GNU 8085 Simulator for OS X .please tell clearly

[y4sh-patel]

While installing through Meson found this error :

"RuntimeError: File 'doc/help/userguide.htm' could not be found"

[rondbe]

gtksourceview3

Nice to see that @onkarshinde managed to install the GNUSim8085 on MacOS. Could I have the step-by-step instructions for this on MacOS? Where do I type the instructions?

[onkarshinde]

@rondbe Please read README_OSX.md file for instructions. Use homebrew to install dependencies

@y4sh-patel I think you are missing a dependency used for building the user guide. Check README_OSX.md.