feat: add signed in-app desktop updater

.gitea/workflows/desktop-release.yml

@@ -21,8 +21,76 @@ permissions:
   releases: read
 
 jobs:
+  bootstrap-updater-key:
+    name: Bootstrap updater signing key
+    runs-on: ubuntu-latest
+    permissions:
+      code: write
+      actions: write
+    outputs:
+      ready: ${{ steps.bootstrap.outputs.ready }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 24
+
+      - name: Bootstrap signing key if missing
+        id: bootstrap
+        shell: bash
+        env:
+          EXISTING_SIGNING_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_SERVER_URL: ${{ gitea.server_url }}
+          GITEA_REPOSITORY: ${{ gitea.repository }}
+        run: |
+          set -euo pipefail
+
+          if [ -n "$EXISTING_SIGNING_KEY" ] && ! grep -q '__FIELDLENS_UPDATER_PUBKEY__' src-tauri/tauri.conf.json; then
+            echo "ready=true" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          npm install
+          npm run tauri signer generate -- --ci -w /tmp/fieldlens-updater.key >/tmp/tauri-signer.log 2>&1
+
+          test -s /tmp/fieldlens-updater.key
+          test -s /tmp/fieldlens-updater.key.pub
+
+          api="${GITEA_SERVER_URL%/}/api/v1/repos/${GITEA_REPOSITORY}"
+          jq -n --rawfile data /tmp/fieldlens-updater.key \
+            '{data:$data, description:"FieldLens Print Tauri updater private signing key"}' \
+            >/tmp/updater-secret.json
+
+          curl -fsS \
+            -X PUT \
+            -H "Authorization: token $GITEA_TOKEN" \
+            -H "Content-Type: application/json" \
+            --data-binary @/tmp/updater-secret.json \
+            "$api/actions/secrets/TAURI_SIGNING_PRIVATE_KEY" >/dev/null
+
+          node <<'NODE'
+          const fs = require('fs')
+          const path = 'src-tauri/tauri.conf.json'
+          const config = JSON.parse(fs.readFileSync(path, 'utf8'))
+          config.plugins.updater.pubkey = fs.readFileSync('/tmp/fieldlens-updater.key.pub', 'utf8').trim()
+          fs.writeFileSync(path, JSON.stringify(config, null, 2) + '\n')
+          NODE
+
+          git config user.name "FieldLens Desktop CI"
+          git config user.email "ci@noreply.git.arrowstack.dev"
+          git add src-tauri/tauri.conf.json
+          git commit -m "chore: initialize updater public key"
+          git push origin HEAD:main
+
+          rm -f /tmp/fieldlens-updater.key /tmp/fieldlens-updater.key.pub /tmp/updater-secret.json
+          echo "ready=false" >> "$GITHUB_OUTPUT"
+
   windows-nsis:
     name: Windows x64 NSIS
+    needs: bootstrap-updater-key
+    if: needs.bootstrap-updater-key.outputs.ready == 'true'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -44,29 +112,35 @@ jobs:
       - name: Install Node dependencies
         run: npm install
 
-      - name: Build Windows installer
+      - name: Build signed Windows installer
         run: npm run bundle:windows
         env:
           XWIN_CACHE_DIR: ${{ runner.temp }}/xwin-cache
+          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ""
 
-      - name: Stage Windows installer
+      - name: Stage Windows installer and signature
         shell: bash
         run: |
           set -euo pipefail
           source_file="$(find src-tauri/target/x86_64-pc-windows-msvc/release/bundle/nsis -maxdepth 1 -type f -name '*-setup.exe' -print -quit)"
           test -n "$source_file"
+          test -s "$source_file.sig"
           mkdir -p dist
           cp "$source_file" dist/fieldlens-print-windows-x64-setup.exe
+          cp "$source_file.sig" dist/fieldlens-print-windows-x64-setup.exe.sig
 
       - uses: actions/upload-artifact@v3
         with:
           name: fieldlens-print-windows-x64
-          path: dist/fieldlens-print-windows-x64-setup.exe
+          path: dist/*
           if-no-files-found: error
           retention-days: 14
 
-  linux-deb:
+  linux:
-    name: Linux x64 DEB
+    name: Linux x64 DEB + AppImage
+    needs: bootstrap-updater-key
+    if: needs.bootstrap-updater-key.outputs.ready == 'true'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -95,49 +169,47 @@ jobs:
       - name: Install Node dependencies
         run: npm install
 
-      - name: Build Debian package
+      - name: Build signed Linux packages
-        run: npm run bundle:deb
+        run: npm run bundle:linux
+        env:
+          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ""
 
-      - name: Stage Debian package
+      - name: Stage Linux packages and updater signature
         shell: bash
         run: |
           set -euo pipefail
-          source_file="$(find src-tauri/target/release/bundle/deb -maxdepth 1 -type f -name '*.deb' -print -quit)"
+          deb_file="$(find src-tauri/target/release/bundle/deb -maxdepth 1 -type f -name '*.deb' -print -quit)"
-          test -n "$source_file"
+          appimage_file="$(find src-tauri/target/release/bundle/appimage -maxdepth 1 -type f -name '*.AppImage' -print -quit)"
+          test -n "$deb_file"
+          test -n "$appimage_file"
+          test -s "$appimage_file.sig"
           mkdir -p dist
-          cp "$source_file" dist/fieldlens-print-linux-x64.deb
+          cp "$deb_file" dist/fieldlens-print-linux-x64.deb
+          cp "$appimage_file" dist/fieldlens-print-linux-x64.AppImage
+          cp "$appimage_file.sig" dist/fieldlens-print-linux-x64.AppImage.sig
 
       - uses: actions/upload-artifact@v3
         with:
-          name: fieldlens-print-linux-x64-deb
+          name: fieldlens-print-linux-x64
-          path: dist/fieldlens-print-linux-x64.deb
+          path: dist/*
           if-no-files-found: error
           retention-days: 14
 
   publish-release:
     name: Publish public desktop release
-    needs: [windows-nsis, linux-deb]
+    needs: [bootstrap-updater-key, windows-nsis, linux]
+    if: needs.bootstrap-updater-key.outputs.ready == 'true'
     runs-on: ubuntu-latest
     permissions:
-      code: read
+      code: write
       releases: write
     steps:
       - uses: actions/checkout@v4
 
-      - name: Resolve release tag
+      - uses: actions/setup-node@v4
-        id: release
+        with:
-        shell: bash
+          node-version: 24
-        run: |
-          if [[ "${GITEA_REF}" == refs/tags/* ]]; then
-            tag="${GITEA_REF_NAME}"
-          else
-            version="$(node -p "require('./package.json').version")"
-            tag="v${version}"
-          fi
-          echo "tag=${tag}" >> "$GITHUB_OUTPUT"
-        env:
-          GITEA_REF: ${{ gitea.ref }}
-          GITEA_REF_NAME: ${{ gitea.ref_name }}
 
       - uses: actions/download-artifact@v3
         with:
@@ -146,9 +218,64 @@ jobs:
 
       - uses: actions/download-artifact@v3
         with:
-          name: fieldlens-print-linux-x64-deb
+          name: fieldlens-print-linux-x64
           path: release-assets
 
+      - name: Build updater manifest
+        shell: bash
+        run: |
+          set -euo pipefail
+          version="$(node -p "require('./package.json').version")"
+          windows_sig="$(cat release-assets/fieldlens-print-windows-x64-setup.exe.sig)"
+          linux_sig="$(cat release-assets/fieldlens-print-linux-x64.AppImage.sig)"
+          base="https://git.arrowstack.dev/Admin/fieldlens-desktop/raw/branch/main/downloads"
+
+          jq -n \
+            --arg version "$version" \
+            --arg windows_sig "$windows_sig" \
+            --arg linux_sig "$linux_sig" \
+            --arg windows_url "$base/fieldlens-print-windows-x64-setup.exe" \
+            --arg linux_url "$base/fieldlens-print-linux-x64.AppImage" \
+            '{
+              version: $version,
+              notes: "FieldLens Print desktop update",
+              platforms: {
+                "windows-x86_64": {signature:$windows_sig, url:$windows_url},
+                "linux-x86_64": {signature:$linux_sig, url:$linux_url}
+              }
+            }' > release-assets/latest.json
+
+      - name: Update stable public downloads
+        shell: bash
+        run: |
+          set -euo pipefail
+          mkdir -p downloads
+
+          cp release-assets/fieldlens-print-windows-x64-setup.exe downloads/
+          cp release-assets/fieldlens-print-windows-x64-setup.exe.sig downloads/
+          cp release-assets/fieldlens-print-linux-x64.deb downloads/
+          cp release-assets/fieldlens-print-linux-x64.AppImage downloads/
+          cp release-assets/fieldlens-print-linux-x64.AppImage.sig downloads/
+          cp release-assets/latest.json downloads/latest.json
+
+          deb_sha="$(sha256sum downloads/fieldlens-print-linux-x64.deb | awk '{print $1}')"
+          sed -E "s/EXPECTED_SHA256=\"[0-9a-f]{64}\"/EXPECTED_SHA256=\"$deb_sha\"/" downloads/install.sh > /tmp/install.sh
+          mv /tmp/install.sh downloads/install.sh
+
+          sha256sum \
+            downloads/fieldlens-print-linux-x64.deb \
+            downloads/fieldlens-print-linux-x64.AppImage \
+            downloads/fieldlens-print-windows-x64-setup.exe \
+            | sed 's#downloads/##' > downloads/SHA256SUMS
+
+          git config user.name "FieldLens Desktop CI"
+          git config user.email "ci@noreply.git.arrowstack.dev"
+          git add downloads
+          if ! git diff --cached --quiet; then
+            git commit -m "release: publish FieldLens Print $(node -p "require('./package.json').version") downloads"
+            git push origin HEAD:main
+          fi
+
       - name: Publish Gitea release assets
         shell: bash
         env:
@@ -156,56 +283,51 @@ jobs:
           GITEA_SERVER_URL: ${{ gitea.server_url }}
           GITEA_REPOSITORY: ${{ gitea.repository }}
           GITEA_SHA: ${{ gitea.sha }}
-          RELEASE_TAG: ${{ steps.release.outputs.tag }}
         run: |
           set -euo pipefail
 
+          version="$(node -p "require('./package.json').version")"
+          release_tag="v$version"
           api="${GITEA_SERVER_URL%/}/api/v1/repos/${GITEA_REPOSITORY}"
           auth_header="Authorization: token ${GITEA_TOKEN}"
 
-          status="$(curl -sS -o /tmp/release.json -w '%{http_code}' \
+          status="$(curl -sS -o /tmp/release.json -w '%{http_code}' -H "$auth_header" "$api/releases/tags/$release_tag")"
-            -H "$auth_header" \
-            "$api/releases/tags/$RELEASE_TAG")"
 
           if [ "$status" = "404" ]; then
             jq -n \
-              --arg tag "$RELEASE_TAG" \
+              --arg tag "$release_tag" \
               --arg sha "$GITEA_SHA" \
               '{
                 tag_name:$tag,
                 target_commitish:$sha,
                 name:("FieldLens Print " + $tag),
-                body: "Public FieldLens Print desktop installers.",
+                body:"Signed FieldLens Print desktop installers and updater artifacts.",
                 draft:false,
                 prerelease:false
               }' > /tmp/create-release.json
 
-            curl -fsS \
+            curl -fsS -X POST -H "$auth_header" -H "Content-Type: application/json" \
-              -X POST \
+              --data-binary @/tmp/create-release.json "$api/releases" > /tmp/release.json
-              -H "$auth_header" \
-              -H "Content-Type: application/json" \
-              --data-binary @/tmp/create-release.json \
-              "$api/releases" > /tmp/release.json
           elif [ "$status" != "200" ]; then
             cat /tmp/release.json
             exit 1
           fi
 
           release_id="$(jq -r '.id' /tmp/release.json)"
-          test "$release_id" != "null"
-
           curl -fsS -H "$auth_header" "$api/releases/$release_id/assets" > /tmp/assets.json
 
-          for file in release-assets/fieldlens-print-windows-x64-setup.exe release-assets/fieldlens-print-linux-x64.deb; do
+          for file in \
+            release-assets/fieldlens-print-windows-x64-setup.exe \
+            release-assets/fieldlens-print-windows-x64-setup.exe.sig \
+            release-assets/fieldlens-print-linux-x64.deb \
+            release-assets/fieldlens-print-linux-x64.AppImage \
+            release-assets/fieldlens-print-linux-x64.AppImage.sig \
+            release-assets/latest.json
+          do
             name="$(basename "$file")"
             existing_id="$(jq -r --arg name "$name" '.[] | select(.name == $name) | .id' /tmp/assets.json | head -n 1)"
             if [ -n "$existing_id" ] && [ "$existing_id" != "null" ]; then
               curl -fsS -X DELETE -H "$auth_header" "$api/releases/$release_id/assets/$existing_id"
             fi
-
+            curl -fsS -X POST -H "$auth_header" -F "attachment=@$file" "$api/releases/$release_id/assets?name=$name"
-            curl -fsS \
-              -X POST \
-              -H "$auth_header" \
-              -F "attachment=@$file" \
-              "$api/releases/$release_id/assets?name=$name"
           done

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@fieldlens/print",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "private": true,
   "type": "module",
   "scripts": {
@@ -9,11 +9,14 @@
     "tauri": "tauri",
     "bundle:windows": "npm run icons && tauri build --runner cargo-xwin --target x86_64-pc-windows-msvc --bundles nsis",
     "bundle:deb": "npm run icons && tauri build --bundles deb",
-    "icons": "tauri icon app-icon.svg"
+    "icons": "tauri icon app-icon.svg",
+    "bundle:linux": "npm run icons && tauri build --bundles deb,appimage"
   },
   "dependencies": {
     "@tauri-apps/api": "^2.0.0",
-    "@tauri-apps/plugin-opener": "^2.0.0"
+    "@tauri-apps/plugin-opener": "^2.0.0",
+    "@tauri-apps/plugin-process": "^2.0.0",
+    "@tauri-apps/plugin-updater": "^2.0.0"
   },
   "devDependencies": {
     "@tauri-apps/cli": "^2.0.0",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "fieldlens-print"
-version = "0.1.0"
+version = "0.1.1"
 description = "FieldLens print-stream barcode capture companion"
 authors = ["Arrowstack"]
 edition = "2021"
@@ -23,3 +23,5 @@ serde_json = "1"
 tauri = { version = "2", features = ["tray-icon"] }
 tauri-plugin-opener = "2"
 uuid = { version = "1", features = ["v4", "serde"] }
+tauri-plugin-process = "2"
+tauri-plugin-updater = "2"

src-tauri/capabilities/default.json

@@ -2,9 +2,13 @@
   "$schema": "../gen/schemas/desktop-schema.json",
   "identifier": "default",
   "description": "FieldLens Print desktop permissions",
-  "windows": ["main"],
+  "windows": [
+    "main"
+  ],
   "permissions": [
     "core:default",
-    "opener:default"
+    "opener:default",
+    "updater:default",
+    "process:default"
   ]
 }

src-tauri/src/lib.rs

@@ -82,6 +82,8 @@ fn sync_pending(state: State<'_, AppState>) -> Result<SyncResult, String> {
 pub fn run() {
     tauri::Builder::default()
         .plugin(tauri_plugin_opener::init())
+        .plugin(tauri_plugin_process::init())
+        .plugin(tauri_plugin_updater::Builder::new().build())
         .setup(|app| {
             let data_dir = app.path().app_data_dir()?;
             let shared = SharedState::load(data_dir)

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "FieldLens Print",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "identifier": "dev.arrowstack.fieldlens.print",
   "build": {
     "beforeDevCommand": "npm run dev",
@@ -25,11 +25,26 @@
   },
   "bundle": {
     "active": true,
-    "targets": ["nsis", "msi"],
+    "targets": [
+      "nsis",
+      "msi"
+    ],
     "windows": {
       "nsis": {
         "installMode": "currentUser"
       }
+    },
+    "createUpdaterArtifacts": true
+  },
+  "plugins": {
+    "updater": {
+      "pubkey": "__FIELDLENS_UPDATER_PUBKEY__",
+      "endpoints": [
+        "https://git.arrowstack.dev/Admin/fieldlens-desktop/raw/branch/main/downloads/latest.json"
+      ],
+      "windows": {
+        "installMode": "passive"
+      }
     }
   }
 }

src/main.ts

@@ -1,6 +1,9 @@
+import { BundleType, getBundleType, getVersion } from '@tauri-apps/api/app'
 import { invoke } from '@tauri-apps/api/core'
 import { listen } from '@tauri-apps/api/event'
 import { openUrl } from '@tauri-apps/plugin-opener'
+import { relaunch } from '@tauri-apps/plugin-process'
+import { check, type Update } from '@tauri-apps/plugin-updater'
 import './styles.css'
 
 type CaptureMode = 'raw-proxy' | 'spool-folder' | 'both'
@@ -51,6 +54,10 @@ let config: AppConfig
 let jobs: Job[] = []
 let status: Status
 let loginTimer: number | undefined
+let currentVersion = '0.1.1'
+let bundleType: BundleType | null = null
+let availableUpdate: Update | null = null
+let updateBusy = false
 
 app.innerHTML = `
   <div class="shell">
@@ -119,6 +126,19 @@ app.innerHTML = `
               <label>Station ID<input id="stationId" placeholder="optional" /></label>
             </div>
           </details>
+
+          <div class="update-box">
+            <div>
+              <strong>App updates</strong>
+              <span id="version-label" class="muted">Version …</span>
+              <small id="update-state" class="muted">Checking for updates shortly after startup.</small>
+            </div>
+            <div class="actions update-actions">
+              <button class="btn" id="check-update">Check for updates</button>
+              <button class="btn blue" id="install-update" hidden>Download & restart</button>
+            </div>
+            <div id="update-progress" class="update-progress" hidden><span></span></div>
+          </div>
         </div>
       </section>
 
@@ -238,6 +258,93 @@ el('login').addEventListener('click', async () => {
   }, Math.max(3, session.interval) * 1000)
 })
 
+async function checkForUpdates(manual = false) {
+  if (updateBusy) return
+  const state = el('update-state')
+  const installButton = el<HTMLButtonElement>('install-update')
+  const checkButton = el<HTMLButtonElement>('check-update')
+
+  try {
+    checkButton.disabled = true
+    state.textContent = manual ? 'Checking for updates…' : 'Checking quietly for updates…'
+    const update = await check()
+    availableUpdate = update
+
+    if (!update) {
+      installButton.hidden = true
+      state.textContent = `FieldLens Print ${currentVersion} is up to date.`
+      return
+    }
+
+    state.textContent = `Version ${update.version} is available.`
+    installButton.hidden = false
+    installButton.textContent = bundleType === BundleType.Deb ? 'Open Linux installer' : 'Download & restart'
+  } catch (error) {
+    if (manual) state.textContent = `Update check failed: ${String(error)}`
+    else state.textContent = 'Automatic update check unavailable. You can retry manually.'
+  } finally {
+    checkButton.disabled = false
+  }
+}
+
+async function installAvailableUpdate() {
+  if (!availableUpdate || updateBusy) return
+
+  const state = el('update-state')
+  const button = el<HTMLButtonElement>('install-update')
+  const progress = el<HTMLDivElement>('update-progress')
+  const bar = progress.querySelector('span') as HTMLSpanElement
+
+  if (bundleType === BundleType.Deb) {
+    state.textContent = 'Debian packages update through the Linux installer.'
+    await openUrl('https://fieldlens.arrowstack.dev/downloads')
+    return
+  }
+
+  if (status?.running) {
+    state.textContent = 'Stop capture before installing an update.'
+    return
+  }
+
+  updateBusy = true
+  button.disabled = true
+  progress.hidden = false
+  bar.style.width = '8%'
+  let downloaded = 0
+  let total = 0
+
+  try {
+    state.textContent = `Downloading FieldLens Print ${availableUpdate.version}…`
+    await availableUpdate.downloadAndInstall((event) => {
+      if (event.event === 'Started') {
+        total = event.data.contentLength ?? 0
+        downloaded = 0
+        bar.style.width = '10%'
+      } else if (event.event === 'Progress') {
+        downloaded += event.data.chunkLength
+        if (total > 0) {
+          const percent = Math.min(92, Math.max(10, Math.round((downloaded / total) * 100)))
+          bar.style.width = `${percent}%`
+        }
+      } else if (event.event === 'Finished') {
+        bar.style.width = '100%'
+        state.textContent = 'Update installed. Restarting…'
+      }
+    })
+
+    await relaunch()
+  } catch (error) {
+    state.textContent = `Update failed: ${String(error)}`
+    progress.hidden = true
+  } finally {
+    updateBusy = false
+    button.disabled = false
+  }
+}
+
+el('check-update').addEventListener('click', () => { void checkForUpdates(true) })
+el('install-update').addEventListener('click', () => { void installAvailableUpdate() })
+
 await listen<Job>('capture-job', (event) => {
   jobs = [event.payload, ...jobs.filter((job) => job.id !== event.payload.id)].slice(0, 200)
   void refreshStatus()
@@ -246,4 +353,10 @@ await listen<Job>('capture-job', (event) => {
 config = await invoke<AppConfig>('get_config')
 writeForm(config)
 await refreshStatus()
+
+currentVersion = await getVersion()
+bundleType = await getBundleType().catch(() => null)
+el('version-label').textContent = `Version ${currentVersion}${bundleType ? ` · ${bundleType}` : ''}`
+
+window.setTimeout(() => { void checkForUpdates(false) }, 3000)
 window.setInterval(() => { void refreshStatus() }, 5000)

src/styles.css

@@ -55,3 +55,12 @@ input:focus, select:focus { border-color: #38bdf8; box-shadow: 0 0 0 3px #38bdf8
   .fields { grid-template-columns: 1fr; }
   label.full { grid-column: auto; }
 }
+
+.update-box { margin-top: 14px; padding: 13px; border: 1px solid #263449; border-radius: 12px; background: #0b1220aa; }
+.update-box > div:first-child { display: grid; gap: 3px; }
+.update-box strong { font-size: 12px; }
+.update-box small { line-height: 1.45; }
+.update-actions { margin-top: 12px; }
+.update-progress { height: 5px; margin-top: 12px; overflow: hidden; border-radius: 999px; background: #1e293b; }
+.update-progress span { display: block; width: 0; height: 100%; border-radius: inherit; background: #38bdf8; transition: width .16s ease; }
+.btn:disabled { cursor: wait; opacity: .55; }