Snap addition (#3844)

* add workflow

* branches:
  - snap_addition

* Add snap package build workflow

* Add snap package build master, staging

* snap version from Cargo.toml

* Seems like staging branch should have grade: devel quality level

* Set snap grade based on branch

* add multi arch

* Update snap.yaml

* snap: use arm platform for arm build

* snap: multi platform ci build

---------

Co-authored-by: ardocrat <ardocrat@gri.mw>

.devcontainer/Dockerfile

@@ -1,6 +1,33 @@
-# Rust latest
-FROM mcr.microsoft.com/devcontainers/rust:latest
-
-# Install Required Dependencies
-RUN apt-get -qq update
-RUN apt-get install -y build-essential cmake git libgit2-dev clang libncurses5-dev libncursesw5-dev zlib1g-dev pkg-config libssl-dev llvm
+# Rust latest
+FROM mcr.microsoft.com/devcontainers/rust:latest
+
+# Install Required Dependencies
+RUN apt-get -qq update
+RUN apt-get install -y \
+    build-essential \
+    clang \
+    cmake \
+    fuse \
+    gh \
+    git \
+    libgit2-dev \
+    libncurses5-dev \
+    libncursesw5-dev \
+    libssl-dev \
+    llvm \
+    pkg-config \
+    snapd \
+    squashfuse \
+    sudo \
+    zlib1g-dev
+
+RUN echo '#!/bin/bash\n\
+/usr/lib/snapd/snapd &\n\
+sleep 5\n\
+exec "$@"' > /start-snapd.sh && \
+    chmod +x /start-snapd.sh
+
+VOLUME ["/sys/fs/cgroup"]
+
+ENTRYPOINT ["/start-snapd.sh"]
+CMD ["bash"]

.devcontainer/devcontainer.json

@@ -16,5 +16,6 @@
           "github.copilot-chat"
         ]
       }
-    }
+    },
+    "runArgs": ["--privileged", "-v", "/sys/fs/cgroup:/sys/fs/cgroup:ro", "-v", "/tmp:/tmp"]
   }

.github/workflows/snap.yaml

@@ -0,0 +1,45 @@
+name: Snap Package
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+      - staging
+
+jobs:
+  build-snap:
+    name: Build snap
+    strategy:
+      matrix:
+        runs-on: [ubuntu-latest, ubuntu-24.04-arm]
+    runs-on: ${{ matrix.runs-on }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Prepare snapcraft project
+        run: |
+          grade=devel
+          if [ "${{ github.ref_name }}" = "master" ]; then
+            grade=stable
+          fi
+
+          mkdir -p snap
+          sed "s/SNAP_GRADE/$grade/" .packaging/snaps/snapcraft.yaml > snap/snapcraft.yaml
+
+      - name: Build snap package
+        id: build
+        uses: snapcore/action-build@v1
+        with:
+          path: .
+
+      - name: Show snap package
+        run: find . -maxdepth 1 -name "*.snap" -ls
+
+      - name: Upload snap artifact
+        uses: actions/upload-artifact@v6
+        with:
+          name: grin-snap
+          path: "*.snap"
+          if-no-files-found: error

.packaging/snaps/snapcraft.yaml

@@ -0,0 +1,40 @@
+name: grin
+adopt-info: grin
+summary: Minimal implementation of the Mimblewimble protocol
+description: |
+  https://grin.mw/
+
+confinement: strict
+grade: SNAP_GRADE
+base: core22
+architectures:
+  - build-on: [arm64]
+    build-for: [arm64]
+  - build-on: [amd64]
+    build-for: [amd64]
+
+parts:
+  grin:
+    plugin: rust
+    source: .
+    override-pull: |
+      craftctl default
+      craftctl set version="$(sed -n 's/^version = "\(.*\)"/\1/p' Cargo.toml | head -n 1)"
+    build-packages:
+      - build-essential
+      - clang
+      - cmake
+      - libncurses5-dev
+      - libncursesw5-dev
+      - libssl-dev
+      - llvm
+      - pkg-config
+      - zlib1g-dev
+
+apps:
+  grin:
+    environment:
+      LC_ALL: C.UTF-8
+      LANG: C.UTF-8
+    command: bin/grin
+    plugs: [network, network-bind]