build: add appstream metadata file

Makefile

@@ -9,6 +9,10 @@ run:
 install: install-resources
 	cargo install $(CARGO_ARGS) --path . --force --root $(DESTDIR)$(PREFIX)
 
+install-flatpak: install
+	mkdir -p /app/share/metainfo/
+	cp desktop/com.github.Lyude.neovim-gtk.metainfo.xml /app/share/metainfo/
+
 install-debug: install-resources
 	cargo install $(CARGO_ARGS) --debug --path . --force --root $(DESTDIR)$(PREFIX)
 

com.github.Lyude.neovim-gtk.yaml

@@ -0,0 +1,32 @@
+app-id: com.github.Lyude.neovim-gtk
+runtime: org.gnome.Platform
+runtime-version: '45'
+sdk: org.gnome.Sdk
+sdk-extensions:
+- org.freedesktop.Sdk.Extension.rust-stable
+command: nvim-gtk
+finish-args:
+- --share=ipc
+- --socket=fallback-x11
+- --socket=wayland
+- --device=dri
+- --socket=session-bus # for `flatpak-spawn --host nvim`
+build-options:
+  append-path: "/usr/lib/sdk/rust-stable/bin"
+  build-args:
+  - "--share=network" # for cargo fetching dependencies
+  env:
+    CARGO_HOME: "/run/build/neovim-gtk" # for caching 
+    CARGO_ARGS: "--features flatpak"
+    PREFIX: "/app"
+modules:
+- name: neovim-gtk
+  buildsystem: simple
+  build-commands:
+  - make install-flatpak
+  sources:
+  - type: archive
+    #url: https://github.com/Lyude/neovim-gtk/archive/refs/tags/v1.0.4.tar.gz
+    #sha256: d0d0dacfbfca16168361f517dee20259785379910173cc33d7d48bd301d30f18
+    url: https://github.com/Lyude/neovim-gtk/archive/3739f961d28d2a7c98b1fd8be912fc4bb9d9d216.tar.gz
+    sha256: 78f0a12bdbf5d085fdbc0a57d877b695c5ae4873d036dd5e190141a927da2819

desktop/com.github.Lyude.neovim-gtk.desktop

@@ -2,7 +2,7 @@
 Name=NeovimGtk
 Comment=Gtk GUI for Neovim text editor
 Exec=nvim-gtk -- %F
-Icon=org.daa.NeovimGtk
+Icon=com.github.Lyude.neovim-gtk
 Type=Application
 Terminal=false
 Categories=GTK;Utility;TextEditor;

desktop/com.github.Lyude.neovim-gtk.metainfo.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0"?>
+<!-- Following https://www.freedesktop.org/software/appstream/docs/chap-CatalogData.html, but only component allowed? Not <components>? -->
+<component type="desktop-application">
+  <id>com.github.Lyude.neovim-gtk</id>
+  <name>neovim-gtk</name>
+  <summary>GTK UI for neovim written in rust using gtk-rs bindings</summary>
+  <developer_name>Lyude Paul, @daa84</developer_name>
+  <description>
+   <p>GTK ui for neovim written in rust using gtk-rs bindings. With ligatures support. This project began as a fork of @daa84's neovim-gtk.</p>
+    <p>There are a very large number of improvements from @daa84's version, including:
+      <ul>
+        <li>Lots of bugfixes</li>
+        <li>We're fully ported to GTK4, and have a Snapshot based renderer instead of a cairo based renderer</li>
+        <li>Smooth resizing</li>
+      </ul> 
+    </p>
+  </description>
+  <metadata_license>GPL-3.0</metadata_license>
+  <keywords>
+    <keyword>neovim</keyword>
+    <keyword>vim</keyword>
+    <keyword>editor</keyword>
+  </keywords>
+  <categories>
+    <category>network</category>
+    <category>web</category>
+  </categories>
+  <url type="homepage">https://github.com/Lyude/neovim-gtk</url>
+  <url type="bugtracker">https://github.com/Lyude/neovim-gtk/issues/new</url>
+  <screenshots>
+    <screenshot type="default">
+      <image type="source" width="916" height="668">https://raw.githubusercontent.com/Lyude/neovim-gtk/main/screenshots/neovimgtk-screen.png</image>
+    </screenshot>
+  </screenshots>
+</component>