feat: automatically update fpm formula on release (#41)

Author: perazz

.github/workflows/fpm-version-update.yml

@@ -0,0 +1,65 @@
+name: Auto-update fpm Formula
+
+on:
+  schedule:
+    - cron: "0 0 * * *" # Runs daily at midnight UTC
+  workflow_dispatch: # Allows manual trigger
+
+jobs:
+  update-fpm:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Fetch latest fpm release
+        id: get-latest-release
+        run: |
+          VERSION_WITH_V="$(curl -s https://api.github.com/repos/fortran-lang/fpm/releases/latest | jq -r '.tag_name')"
+          VERSION_WITHOUT_V="${VERSION_WITH_V#v}"  # Remove leading 'v'
+          echo "LATEST_VERSION=${VERSION_WITHOUT_V}" >> "$GITHUB_ENV"
+          echo "LATEST_VERSION_V=${VERSION_WITH_V}" >> "$GITHUB_ENV"
+          echo "Latest version: ${VERSION_WITH_V} (stripped: ${VERSION_WITHOUT_V})"
+
+      - name: Extract current formula version
+        id: get-current-version
+        run: |
+          CURRENT_VERSION="$(grep -oP 'url "https://github.com/fortran-lang/fpm/releases/download/v\K[0-9.]+' Formula/fpm.rb)"
+          echo "CURRENT_VERSION=${CURRENT_VERSION}" >> "$GITHUB_ENV"
+          echo "Current version: ${CURRENT_VERSION}"
+
+      - name: Compare versions
+        id: check-update
+        run: |
+          if [ "${LATEST_VERSION}" != "${CURRENT_VERSION}" ]; then
+            echo "New version available!"
+            echo "UPDATE_NEEDED=true" >> "$GITHUB_ENV"
+          else
+            echo "No update needed."
+          fi
+
+      - name: Get new SHA256 hash
+        if: env.UPDATE_NEEDED == 'true'
+        id: get-sha256
+        run: |
+          SHA_URL="https://github.com/fortran-lang/fpm/releases/download/${LATEST_VERSION_V}/fpm-${LATEST_VERSION}.zip.sha256"
+          SHA256="$(curl -sL "${SHA_URL}" | awk '{print $1}')"
+          echo "SHA256=${SHA256}" >> "$GITHUB_ENV"
+          echo "New SHA256: ${SHA256}"
+
+      - name: Update formula
+        if: env.UPDATE_NEEDED == 'true'
+        run: |
+          sed -i "s|url \".*\"|url \"https://github.com/fortran-lang/fpm/releases/download/${LATEST_VERSION_V}/fpm-${LATEST_VERSION}.zip\"|" Formula/fpm.rb
+          sed -i "s|sha256 \".*\"|sha256 \"${SHA256}\"|" Formula/fpm.rb
+
+      - name: Commit and push changes
+        if: env.UPDATE_NEEDED == 'true'
+        run: |
+          git config --global user.name "GitHub Actions"
+          git config --global user.email "[email protected]"
+          git add Formula/fpm.rb
+          git commit -m "Update fpm to ${LATEST_VERSION}"
+          git push
+

.github/workflows/publish.yml

@@ -3,10 +3,12 @@ on:
   pull_request_target:
     types:
       - labeled
+
 jobs:
   pr-pull:
     if: contains(github.event.pull_request.labels.*.name, 'pr-pull')
     runs-on: ubuntu-latest
+
     steps:
       - name: Set up Homebrew
         uses: Homebrew/actions/setup-homebrew@master
@@ -19,16 +21,17 @@ jobs:
           HOMEBREW_GITHUB_API_TOKEN: ${{ github.token }}
           HOMEBREW_NO_INSTALL_FROM_API: 1
           PULL_REQUEST: ${{ github.event.pull_request.number }}
-        run: brew pr-pull --debug --tap=$GITHUB_REPOSITORY $PULL_REQUEST
+        run: brew pr-pull --debug --tap="${GITHUB_REPOSITORY}" "${PULL_REQUEST}"
 
       - name: Push commits
         uses: Homebrew/actions/git-try-push@master
         with:
           token: ${{ github.token }}
-          branch: main
+          branch: "main"
 
       - name: Delete branch
         if: github.event.pull_request.head.repo.fork == false
         env:
           BRANCH: ${{ github.event.pull_request.head.ref }}
-        run: git push --delete origin $BRANCH
+        run: git push --delete origin "${BRANCH}"
+

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-12, macos-13]
+        os: [macos-13]
     runs-on: ${{ matrix.os }}
     timeout-minutes: 30
     steps:
@@ -19,11 +19,12 @@ jobs:
 
       - name: Cache Homebrew Bundler RubyGems
         id: cache
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ${{ steps.set-up-homebrew.outputs.gems-path }}
           key: ${{ runner.os }}-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}
-          restore-keys: ${{ runner.os }}-rubygems-
+          restore-keys: |
+            ${{ runner.os }}-rubygems-
 
       - name: Install Homebrew Bundler RubyGems
         if: steps.cache.outputs.cache-hit != 'true'
@@ -40,7 +41,7 @@ jobs:
 
       - name: Upload bottles as artifact
         if: always() && github.event_name == 'pull_request'
-        uses: actions/upload-artifact@main
+        uses: actions/upload-artifact@v4
         with:
           name: bottles
           path: '*.bottle.*'

Formula/lfortran.rb

@@ -12,7 +12,7 @@ class Lfortran < Formula
 
   depends_on "cmake" => :build
   depends_on "ninja" => :build
-  depends_on "llvm@11"
+  depends_on "llvm@14"
   depends_on "zlib"
 
   def install
@@ -33,7 +33,7 @@ def install
       end
     EOS
     system "#{bin}/lfortran", testpath/"hello.f90", "-o", testpath/"hello"
-    assert_predicate testpath/"hello", :exist?
+    assert_path_exists testpath/"hello"
     system testpath/"hello"
   end
 end

README.md

@@ -5,7 +5,7 @@ This repository provides package build instructions for tools and libraries arou
 For example you can install *fpm* by tapping this repository
 
 ```
-brew tap fortran-lang/homebrew-fortran
+`brew tap fortran-lang/homebrew-fortran`
 brew install fpm
 ```