gi not found on Mac

[BeastyBlacksmith]

After running the install.py script of version 0.5 on MacOS running diffuse gives:

Traceback (most recent call last):
  File "/usr/local/bin/diffuse", line 120, in <module>
    import gi
ModuleNotFoundError: No module named 'gi'

[MightyCreak]

You need the PyGObject python package.

From Stackoverflow, it seems that this command should work (with Homebrew):

brew install pygobject3

[BeastyBlacksmith]

That gives me a GUI window with the following error message

Fehler bei der Analyse der Zeilen 5 von /etc/diffuserc

[MightyCreak]

Hmm... that's a problem with OS X.
@dscherger has this bug as well, you can find his fix here: https://github.com/MightyCreak/diffuse/pull/24/files/6b091a205b0e7f8a6b1e84c70f02f75517e4465a#diff-26c7ae75b933d602876ed212cfc3da9b

I couldn't merge it because it would have broken other platforms. That said, I'm hopeful that the future Meson installation system (PR #61) will fix this bug.

[MightyCreak]

@BeastyBlacksmith I have merge PR #61 and now Meson is the only way to install Diffuse on your computer. Could you give it a try?

To install Meson with Homebrew:

brew install meson

The install procedure is explained in the README.

[BeastyBlacksmith]

There was the also the gtk-update-icon-cache missing, so I installed gtk-mac-integration and it built.
Running diffuse gives now:

Traceback (most recent call last):
  File "/usr/local/bin/diffuse", line 8361, in <module>
    diff = Diffuse(rc_dir)
  File "/usr/local/bin/diffuse", line 7416, in __init__
    p0 = default_theme.load_icon_for_scale("document-new", icon_size, scale_factor, 0)
gi.repository.GLib.Error: gtk-icon-theme-error-quark: Symbol »document-new« nicht im Thema Adwaita vorhanden (0)

[MightyCreak]

Arf... I knew this day would come... document-new is in the "legacy" directory here on Linux GNOME. Technically it is deprecated, but not obsolete yet as you can see in GNOME documentation, it is still listed in the icon list. But it is also the reason for the warnings at startup (when Diffuse runs well) (issue #55).

This is actually what led me to the Meson build system, so I would be able to use the proper GNOME-way of using resources and the built-in feature in Meson to build them (as seen here: https://gitlab.gnome.org/World/Authenticator/-/blob/master/data/meson.build#L19)

Well, know that I'm working on it! I can't give you an ETA, but knowing that it has become a problem on OSX, it raised its priority.

[chenrui333]

Yeah, I can confirm brew install pygobject3 works.

[hugoholgersson]

This issue can be closed now that we have better support for macOS.