[gnome-tetravex/gnome-3-22] Add snap packaging

[Jeremy Bicha <jbicha src gnome org>]

commit d507f7b17d2ddce289483efeef4e39beb14ef4cc
Author: Ken VanDine <kvandine gnome org>
Date:   Wed Nov 15 14:55:21 2017 -0500

    Add snap packaging
    
    Closes: https://gitlab.gnome.org/GNOME/gnome-tetravex/issues/11

 snap/snapcraft.yaml | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
---
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
new file mode 100644
index 0000000..457bf5c
--- /dev/null
+++ b/snap/snapcraft.yaml
@@ -0,0 +1,73 @@
+name: gnome-tetravex
+version: git
+summary: Reorder tiles to fit a square
+description: |
+  Each square piece has a number on each side. Position the pieces on the left
+  side of the board so that the same numbers are next to each other. If the
+  numbers don't match, you can't put the piece there. Move quickly: you're
+  being timed!
+
+  You can make the game easier or harder by changing the size of the board.     
+
+grade: stable # must be 'stable' to release into candidate/stable channels
+confinement: strict
+
+plugs:
+  gnome-3-26-1604:
+    interface: content
+    target: $SNAP/gnome-platform
+    default-provider: gnome-3-26-1604
+  gtk-3-themes:
+    interface: content
+    target: $SNAP/data-dir/themes
+    default-provider: gtk-common-themes
+  icon-themes:
+    interface: content
+    target: $SNAP/data-dir/icons
+    default-provider: gtk-common-themes
+
+slots:
+  # for GtkApplication registration
+  gnome-tetravex:
+    interface: dbus
+    bus: session
+    name: org.gnome.tetravex
+
+apps:
+  gnome-tetravex:
+    command: desktop-launch gnome-tetravex
+    plugs:
+      - desktop
+      - desktop-legacy
+      - gsettings
+      - unity7
+      - wayland
+    desktop: usr/share/applications/gnome-tetravex.desktop
+    environment:
+      PATH: $SNAP/usr/games:$PATH
+
+parts:
+  gnome-tetravex:
+    build-attributes: [no-system-libraries]
+    after: [desktop-gnome-platform]
+    source: .
+    source-type: git
+    override-build: |
+      sed -i.bak -e 's|Icon=gnome-tetravex$|Icon=${SNAP}/meta/gui/gnome-tetravex.png|g' 
data/gnome-tetravex.desktop.in
+      snapcraftctl build
+      mkdir -p $SNAPCRAFT_PART_INSTALL/meta/gui/
+      cp ../src/data/icons/hicolor/48x48/gnome-tetravex.png $SNAPCRAFT_PART_INSTALL/meta/gui/
+      cp data/gnome-tetravex.desktop $SNAPCRAFT_PART_INSTALL/meta/gui/
+    plugin: autotools
+    configflags: [--prefix=/snap/gnome-tetravex/current/usr, --bindir=/snap/gnome-tetravex/current/usr/games]
+    organize:
+      snap/gnome-tetravex/current/usr: usr
+    build-packages:
+      - appstream-util
+      - gnome-pkg-tools
+      - intltool
+      - libglib2.0-dev
+      - libgtk-3-dev
+      - valac
+      - yelp-tools
+