Add dynamic versioning with VERSION file and tag-based patch counting

- Create VERSION file (currently `0.2`) as the single source of truth for major.minor
- Add compute-version job that reads VERSION and counts commits since the last
  matching v{major.minor}.N tag to derive the patch number
- Patch resets automatically when VERSION is bumped (no matching tags exist yet)
- Add create-tag job that tags the repo after all platform builds succeed,
  so subsequent builds count from the new tag
- All platform jobs now consume the shared version instead of computing their own
- VERSION file changes trigger the build workflow

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/build-app.yml

@@ -5,11 +5,13 @@ on:
     branches: [main]
     paths:
       - "app/**"
+      - "VERSION"
       - ".gitea/workflows/build-app.yml"
   pull_request:
     branches: [main]
     paths:
       - "app/**"
+      - "VERSION"
       - ".gitea/workflows/build-app.yml"
   workflow_dispatch:
 
@@ -18,10 +20,43 @@ env:
   REPO: ${{ gitea.repository }}
 
 jobs:
-  build-linux:
+  compute-version:
     runs-on: ubuntu-latest
     outputs:
       version: ${{ steps.version.outputs.VERSION }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Fetch all tags
+        run: git fetch --tags
+
+      - name: Compute version from VERSION file and tags
+        id: version
+        run: |
+          MAJOR_MINOR=$(cat VERSION | tr -d '[:space:]')
+          echo "Major.Minor: ${MAJOR_MINOR}"
+
+          # Find the latest tag matching v{MAJOR_MINOR}.N (exclude -mac, -win suffixes)
+          LATEST_TAG=$(git tag -l "v${MAJOR_MINOR}.*" --sort=-v:refname | grep -E "^v${MAJOR_MINOR}\.[0-9]+$" | head -1)
+
+          if [ -n "$LATEST_TAG" ]; then
+            echo "Latest matching tag: ${LATEST_TAG}"
+            PATCH=$(git rev-list --count "${LATEST_TAG}..HEAD")
+          else
+            echo "No matching tag found for v${MAJOR_MINOR}.*, using total commit count"
+            PATCH=$(git rev-list --count HEAD)
+          fi
+
+          VERSION="${MAJOR_MINOR}.${PATCH}"
+          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
+          echo "Computed version: ${VERSION}"
+
+  build-linux:
+    runs-on: ubuntu-latest
+    needs: [compute-version]
     steps:
       - name: Install Node.js 22
         run: |
@@ -54,17 +89,9 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Compute version
-        id: version
-        run: |
-          COMMIT_COUNT=$(git rev-list --count HEAD)
-          VERSION="0.2.${COMMIT_COUNT}"
-          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
-          echo "Computed version: ${VERSION}"
-
       - name: Set app version
         run: |
-          VERSION="${{ steps.version.outputs.VERSION }}"
+          VERSION="${{ needs.compute-version.outputs.version }}"
           sed -i "s/\"version\": \".*\"/\"version\": \"${VERSION}\"/" app/src-tauri/tauri.conf.json
           sed -i "s/\"version\": \".*\"/\"version\": \"${VERSION}\"/" app/package.json
           sed -i "s/^version = \".*\"/version = \"${VERSION}\"/" app/src-tauri/Cargo.toml
@@ -133,7 +160,7 @@ jobs:
         env:
           TOKEN: ${{ secrets.REGISTRY_TOKEN }}
         run: |
-          TAG="v${{ steps.version.outputs.VERSION }}"
+          TAG="v${{ needs.compute-version.outputs.version }}"
           # Create release
           curl -s -X POST \
             -H "Authorization: token ${TOKEN}" \
@@ -156,6 +183,7 @@ jobs:
 
   build-macos:
     runs-on: macos-latest
+    needs: [compute-version]
     steps:
       - name: Install Node.js 22
         run: |
@@ -183,17 +211,9 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Compute version
-        id: version
-        run: |
-          COMMIT_COUNT=$(git rev-list --count HEAD)
-          VERSION="0.2.${COMMIT_COUNT}"
-          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
-          echo "Computed version: ${VERSION}"
-
       - name: Set app version
         run: |
-          VERSION="${{ steps.version.outputs.VERSION }}"
+          VERSION="${{ needs.compute-version.outputs.version }}"
           sed -i '' "s/\"version\": \".*\"/\"version\": \"${VERSION}\"/" app/src-tauri/tauri.conf.json
           sed -i '' "s/\"version\": \".*\"/\"version\": \"${VERSION}\"/" app/package.json
           sed -i '' "s/^version = \".*\"/version = \"${VERSION}\"/" app/src-tauri/Cargo.toml
@@ -243,12 +263,12 @@ jobs:
         env:
           TOKEN: ${{ secrets.REGISTRY_TOKEN }}
         run: |
-          TAG="v${{ steps.version.outputs.VERSION }}-mac"
+          TAG="v${{ needs.compute-version.outputs.version }}-mac"
           # Create release
           curl -s -X POST \
             -H "Authorization: token ${TOKEN}" \
             -H "Content-Type: application/json" \
-            -d "{\"tag_name\": \"${TAG}\", \"name\": \"Triple-C v${{ steps.version.outputs.VERSION }} (macOS)\", \"body\": \"Automated build from commit ${{ gitea.sha }}\"}" \
+            -d "{\"tag_name\": \"${TAG}\", \"name\": \"Triple-C v${{ needs.compute-version.outputs.version }} (macOS)\", \"body\": \"Automated build from commit ${{ gitea.sha }}\"}" \
             "${GITEA_URL}/api/v1/repos/${REPO}/releases" > release.json
           RELEASE_ID=$(cat release.json | grep -o '"id":[0-9]*' | head -1 | grep -o '[0-9]*')
           echo "Release ID: ${RELEASE_ID}"
@@ -266,6 +286,7 @@ jobs:
 
   build-windows:
     runs-on: windows-latest
+    needs: [compute-version]
     defaults:
       run:
         shell: cmd
@@ -275,18 +296,10 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Compute version
-        id: version
-        run: |
-          for /f %%i in ('git rev-list --count HEAD') do set "COMMIT_COUNT=%%i"
-          set "VERSION=0.2.%COMMIT_COUNT%"
-          echo VERSION=%VERSION%>> %GITHUB_OUTPUT%
-          echo Computed version: %VERSION%
-
       - name: Set app version
         shell: powershell
         run: |
-          $version = "${{ steps.version.outputs.VERSION }}"
+          $version = "${{ needs.compute-version.outputs.version }}"
           (Get-Content app/src-tauri/tauri.conf.json) -replace '"version": ".*?"', "`"version`": `"$version`"" | Set-Content app/src-tauri/tauri.conf.json
           (Get-Content app/package.json) -replace '"version": ".*?"', "`"version`": `"$version`"" | Set-Content app/package.json
           (Get-Content app/src-tauri/Cargo.toml) -replace '^version = ".*?"', "version = `"$version`"" | Set-Content app/src-tauri/Cargo.toml
@@ -367,9 +380,9 @@ jobs:
           TOKEN: ${{ secrets.REGISTRY_TOKEN }}
           COMMIT_SHA: ${{ gitea.sha }}
         run: |
-          set "TAG=v${{ steps.version.outputs.VERSION }}-win"
+          set "TAG=v${{ needs.compute-version.outputs.version }}-win"
           echo Creating release %TAG%...
-          curl -s -X POST -H "Authorization: token %TOKEN%" -H "Content-Type: application/json" -d "{\"tag_name\": \"%TAG%\", \"name\": \"Triple-C v${{ steps.version.outputs.VERSION }} (Windows)\", \"body\": \"Automated build from commit %COMMIT_SHA%\"}" "%GITEA_URL%/api/v1/repos/%REPO%/releases" > release.json
+          curl -s -X POST -H "Authorization: token %TOKEN%" -H "Content-Type: application/json" -d "{\"tag_name\": \"%TAG%\", \"name\": \"Triple-C v${{ needs.compute-version.outputs.version }} (Windows)\", \"body\": \"Automated build from commit %COMMIT_SHA%\"}" "%GITEA_URL%/api/v1/repos/%REPO%/releases" > release.json
           for /f "tokens=2 delims=:," %%a in ('findstr /c:"\"id\"" release.json') do set "RELEASE_ID=%%a" & goto :found
           :found
           echo Release ID: %RELEASE_ID%
@@ -378,9 +391,36 @@ jobs:
             curl -s -X POST -H "Authorization: token %TOKEN%" -H "Content-Type: application/octet-stream" --data-binary "@%%f" "%GITEA_URL%/api/v1/repos/%REPO%/releases/%RELEASE_ID%/assets?name=%%~nxf"
           )
 
+  create-tag:
+    runs-on: ubuntu-latest
+    needs: [compute-version, build-linux, build-macos, build-windows]
+    if: gitea.event_name == 'push'
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Create version tag
+        env:
+          TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          VERSION="${{ needs.compute-version.outputs.version }}"
+          TAG="v${VERSION}"
+          echo "Creating tag ${TAG}..."
+
+          # Create annotated tag via Gitea API
+          curl -s -X POST \
+            -H "Authorization: token ${TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "{\"tag_name\": \"${TAG}\", \"target\": \"${{ gitea.sha }}\", \"message\": \"Release ${TAG}\"}" \
+            "${GITEA_URL}/api/v1/repos/${REPO}/tags" || echo "Tag may already exist (created by release)"
+
+          echo "Tag ${TAG} created successfully"
+
   sync-to-github:
     runs-on: ubuntu-latest
-    needs: [build-linux, build-macos, build-windows]
+    needs: [compute-version, build-linux, build-macos, build-windows]
     if: gitea.event_name == 'push'
     env:
       GH_PAT: ${{ secrets.GH_PAT }}
@@ -389,7 +429,7 @@ jobs:
       - name: Download artifacts from Gitea releases
         env:
           TOKEN: ${{ secrets.REGISTRY_TOKEN }}
-          VERSION: ${{ needs.build-linux.outputs.version }}
+          VERSION: ${{ needs.compute-version.outputs.version }}
         run: |
           set -e
           mkdir -p artifacts
@@ -418,7 +458,7 @@ jobs:
 
       - name: Create GitHub release and upload artifacts
         env:
-          VERSION: ${{ needs.build-linux.outputs.version }}
+          VERSION: ${{ needs.compute-version.outputs.version }}
           COMMIT_SHA: ${{ gitea.sha }}
         run: |
           set -e

VERSION

@@ -0,0 +1 @@
+0.2