CI job to autodetect releases and make them available via brew

.github/workflows/release.yml

@@ -0,0 +1,26 @@
+name: cut new release
+
+on:
+  schedule:
+    - cron:  '*/10 * * * *'
+jobs:
+  trigger:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Run first script
+        run: |
+          ./scripts/check-for-update.sh
+        id: version_check
+      - name: Run second script if the versions differ
+        run: |
+          ./scripts/archive-current-formula.sh
+          ./scripts/update.sh > Formula/fe.rb
+          git config --global user.email "[email protected]"
+          git config --global user.name "GitHub Actions Bot"
+          git checkout -b testbranch3
+          git add .
+          git commit -m "Added new Release via GitHub Actions"
+          git push origin main

Formula/fe.rb

@@ -1,7 +1,6 @@
 class Fe < Formula
   desc "Compiler for the Fe programming language"
   homepage "https://github.com/ethereum/fe"
-  version "0.24.0"
 
   if OS.mac?
     url "https://github.com/ethereum/fe/releases/download/v0.24.0/fe_mac"

scripts/archive-current-formula.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# Change the working directory to the script's directory
+cd $(dirname "$0") || exit
+
+# Path to the input file
+input_file="../Formula/fe.rb"
+
+# Extract the version from the input file
+version=$(grep -o 'v[0-9]\+\.[0-9]\+\.[0-9]\+' "$input_file" | head -n 1 | sed 's/v//')
+
+# Check if version is not empty
+if [ -n "$version" ]; then
+  # Define the new filename
+  new_filename="../Formula/fe@${version}.rb"
+
+  # Check if the new filename already exists
+  if [ -e "$new_filename" ]; then
+    echo "File '$new_filename' already exists."
+  else
+    # Rename the file
+    mv "$input_file" "$new_filename"
+    echo "File renamed to '$new_filename'."
+  fi
+else
+  echo "Version not found in the file."
+fi

scripts/check-for-update.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# Change the working directory to the script's directory
+cd $(dirname "$0") || exit
+
+# Run the first script to get the latest FE version
+latest_version=$(./get-latest-fe-version.sh)
+
+# Run the second script to get the formula version
+formula_version=$(./get-formula-version.sh)
+
+# Compare the versions
+if [ "$latest_version" != "$formula_version" ]; then
+  echo "Versions differ: Latest version is $latest_version, Formula version is $formula_version"
+  exit 0
+else
+  echo "Versions are the same: $latest_version"
+  exit 1
+fi

scripts/get-formula-version.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Change the working directory to the script's directory
+cd $(dirname "$0") || exit
+
+file_path="../Formula/fe.rb"
+
+# Extract version using grep and awk
+version=$(grep -o 'v[0-9]\+\.[0-9]\+\.[0-9]\+' "$file_path" | head -n 1 | sed 's/v//')
+echo $version

scripts/get-latest-fe-version.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# Define your GitHub repository owner and name
+repo_owner="ethereum"
+repo_name="fe"
+
+# Make the API request and store the response in a variable
+response=$(curl -s "https://api.github.com/repos/$repo_owner/$repo_name/releases/latest")
+
+# Check if the request was successful (HTTP status code 200)
+if [[ $? -eq 0 ]]; then
+  # Extract the "name" field from the JSON response
+  name=$(echo "$response" | jq -r ".name")
+
+  # Remove a leading "v" from the name (if present)
+  name_without_v="${name#v}"
+
+  # Print the modified name
+  echo $name_without_v
+else
+  echo "Failed to fetch latest release."
+  exit 1
+fi

scripts/update.sh

@@ -2,7 +2,7 @@
 
 if [ $# -ne 1 ]; then
   # If the script is invoked without version parameter, it will figure out the latest release automatically
-  version=$(curl -s -L -o /dev/null -w %{url_effective} https://github.com/ethereum/fe/releases/latest | sed 's/.*tag\/v//')
+  version=$(./get-latest-fe-version.sh)
 else
   version=$1
 fi
@@ -17,7 +17,6 @@ sha256_mac=$(curl -Ls "$url_mac" | shasum -a 256 | awk '{print $1}')
 blueprint="class Fe < Formula
   desc \"Compiler for the Fe programming language\"
   homepage \"https://github.com/ethereum/fe\"
-  version \"${version}\"
 
   if OS.mac?
     url \"https://github.com/ethereum/fe/releases/download/v${version}/fe_mac\"
@@ -36,6 +35,7 @@ blueprint="class Fe < Formula
       bin.install \"fe_amd64\" => \"fe\"
     end
   end
-end"
+end
+"
 
 echo "$blueprint"