Enable wayland support

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every month
+      interval: "monthly"

.github/workflows/promote-to-stable.yml

@@ -0,0 +1,25 @@
+name: Promote
+
+on:
+  issue_comment:
+    types:
+      - created
+
+permissions:
+  issues: write
+
+jobs:
+  promote:
+    name: ⬆️ Promote to stable
+    environment: "Candidate Branch"
+    runs-on: ubuntu-latest
+    if: |
+      ( !github.event.issue.pull_request )
+      && contains(github.event.comment.body, '/promote ')
+      && contains(github.event.*.labels.*.name, 'testing')
+    steps:
+      - name: ⬆️ Promote to stable
+        uses: snapcrafters/ci/promote-to-stable@main
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          store-token: ${{ secrets.SNAP_STORE_STABLE }}

.github/workflows/pull-request.yml

@@ -0,0 +1,17 @@
+name: Pull Request
+
+on:
+  pull_request:
+    branches: [ "**" ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: 🧪 Build snap on amd64
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🧪 Build snap on amd64
+        uses: snapcrafters/ci/test-snap-build@main

.github/workflows/release-to-candidate.yaml

@@ -0,0 +1,71 @@
+name: Release
+
+on:
+  # Run the workflow each time new commits are pushed to the candidate branch. 
+  push:
+    branches: [ "candidate" ]
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  issues: write
+
+jobs:
+  get-architectures:
+    name: 🖥 Get snap architectures
+    runs-on: ubuntu-latest
+    outputs:
+      architectures: ${{ steps.get-architectures.outputs.architectures }}
+      architectures-list: ${{ steps.get-architectures.outputs.architectures-list }}
+    steps:
+      - name: 🖥 Get snap architectures
+        id: get-architectures
+        uses: snapcrafters/ci/get-architectures@main
+
+  release:
+    name: 🚢 Release to latest/candidate
+    needs: get-architectures
+    runs-on: ubuntu-latest
+    environment: "Candidate Branch"
+    strategy:
+      matrix:
+        architecture: ${{ fromJSON(needs.get-architectures.outputs.architectures-list) }}
+    steps:
+      - name: 🚢 Release to latest/candidate
+        uses: snapcrafters/ci/release-to-candidate@main
+        with:
+          architecture: ${{ matrix.architecture }}
+          launchpad-token: ${{ secrets.LP_BUILD_SECRET }}
+          store-token: ${{ secrets.SNAP_STORE_CANDIDATE }}
+
+  call-for-testing:
+    name: 📣 Create call for testing
+    needs: [release, get-architectures]
+    environment: "Candidate Branch"
+    runs-on: ubuntu-latest
+    outputs:
+      issue-number: ${{ steps.issue.outputs.issue-number }}
+    steps:
+      - name: 📣 Create call for testing
+        id: issue
+        uses: snapcrafters/ci/call-for-testing@main
+        with:
+          architectures: ${{ needs.get-architectures.outputs.architectures }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+  screenshots:
+    name: 📸 Gather screenshots
+    needs: call-for-testing
+    environment: "Candidate Branch"
+    runs-on: ubuntu-latest
+    steps:
+      - name: 📸 Gather screenshots
+        uses: snapcrafters/ci/get-screenshots@main
+        with:
+          issue-number: ${{ needs.call-for-testing.outputs.issue-number }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          screenshots-token: ${{ secrets.SNAPCRAFTERS_BOT_COMMIT }}

.github/workflows/sync-version-with-upstream.yml

@@ -0,0 +1,28 @@
+name: Update
+
+on:
+  # Runs at 10:00 UTC every day
+  schedule:
+    - cron:  '0 10 * * *'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  sync:
+    name: 🔄 Sync version with upstream
+    environment: "Candidate Branch"
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🔄 Sync version with upstream
+        uses: snapcrafters/ci/sync-version@main
+        with:
+          token: ${{ secrets.SNAPCRAFTERS_BOT_COMMIT }}
+          update-script: |
+            VERSION=$(curl -sL https://api.github.com/repos/mattermost/desktop/releases | 
+              jq .  | grep tag_name | grep -v beta | grep -v rc | head -n 1 | cut -d'"' -f4 | tr -d 'v'
+            )
+            sed -i 's/^\(version: \).*$/\1'"$VERSION"'/' snap/snapcraft.yaml

launcher/launcher

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+if [[ ! -n "$DISABLE_WAYLAND" && -n "$WAYLAND_DISPLAY" ]]; then
+  WAYLAND_OPTS="--enable-features=UseOzonePlatform,WaylandWindowDecorations,WebRTCPipeWireCapturer --ozone-platform=wayland --disable-features=WaylandFractionalScaleV1"
+fi
+
+exec "$SNAP/opt/Mattermost/mattermost-desktop" --no-sandbox --disable-seccomp-filter-sandbox $WAYLAND_OPTS "$@"

snap/snapcraft.yaml

@@ -1,31 +1,48 @@
 name: mattermost-desktop
-version: 5.3.1
+title: Mattermost Desktop
+license: MIT
+version: 5.6.0
 base: core22
-summary: Open source, private cloud Slack-alternative
+summary: A secure, flexible platform build for the new era of collaboration
 description: |
   Mattermost is secure workplace messaging from behind your firewall.
 
   - Discuss topics in private groups, one-to-one or team-wide
   - Easily share and view image files
   - Connect in-house systems with webhooks and Slack-compatible integrations
 
+  For technical and operations teams who execute high-stakes, collaborative workflows,
+  Mattermost provides integrated team messaging, audio and screen share, workflow automation
+  and project management. Governments, banks and tech giants use our secure collaboration platform
+  to reduce risk and error rates while accelerating technical productivity.
+
   To use this app, you need a URL for a Mattermost server.
 
+  This snap is maintained by the Snapcrafters community, and is not necessarily endorsed or
+  officially maintained by the upstream developers.
+website: https://mattermost.com/
+contact: https://github.com/snapcrafters/mattermost-desktop/issues
+issues: https://github.com/snapcrafters/mattermost-desktop/issues
+source-code: https://github.com//snapcrafters/mattermost-desktop
+icon: snap/gui/mattermost-desktop.png
+
 grade: stable
 confinement: strict
 compression: lzo
 
 architectures:
-  - build-on: amd64
+ - amd64
+ - arm64
 
 parts:
-  bsi-trigger: # A non-built part, only used to trigger builds in build.snapcraft.io on upstream changes
-    plugin: nil
-    source: https://github.com/mattermost/desktop.git
-
+  launcher:
+    plugin: dump
+    source: launcher
+    override-build: |
+      cp launcher $CRAFT_PART_INSTALL/
   mattermost-desktop:
     plugin: dump
-    source: https://releases.mattermost.com/desktop/$SNAPCRAFT_PROJECT_VERSION/mattermost-desktop_$SNAPCRAFT_PROJECT_VERSION-1_amd64.deb
+    source: https://releases.mattermost.com/desktop/$SNAPCRAFT_PROJECT_VERSION/mattermost-desktop_$SNAPCRAFT_PROJECT_VERSION-1_$SNAPCRAFT_TARGET_ARCH.deb
     source-type: deb
     build-packages: [wget, ca-certificates]
     override-build: |
@@ -55,7 +72,7 @@ apps:
   mattermost-desktop:
     extensions: [gnome]
     command-chain: [opt/Mattermost/fix-default-download-dir]
-    command: opt/Mattermost/mattermost-desktop --no-sandbox --disable-seccomp-filter-sandbox
+    command: launcher
     desktop: usr/share/applications/mattermost-desktop.desktop
     autostart: mattermost-desktop.desktop
     environment: