Add release workflow (#23)

* Add release workflow

.github/scripts/release.sh

@@ -0,0 +1,124 @@
+#!/bin/bash
+
+# Copyright (c) 2025, WSO2 LLC. (https://www.wso2.com).
+#
+# This software is the property of WSO2 LLC. and its suppliers, if any.
+# Dissemination of any information or reproduction of any material contained
+# herein in any form is strictly forbidden, unless permitted by WSO2 expressly.
+# You may not alter or remove any copyright or other notice from copies of this content.
+#
+
+# Exit the script on any command with non-zero exit status.
+set -e
+set -o pipefail
+
+UPSTREAM_BRANCH="main"
+
+# Assign command line arguments to variables.
+GIT_TOKEN=$1
+WORK_DIR=$2
+VERSION_TYPE=$3 # possible values: major, minor, patch
+
+ Check if GIT_TOKEN is empty
+if [ -z "$GIT_TOKEN" ]; then
+  echo "❌ Error: GIT_TOKEN is not set."
+  exit 1
+fi
+
+# Check if WORK_DIR is empty
+if [ -z "$WORK_DIR" ]; then
+  echo "❌ Error: WORK_DIR is not set."
+  exit 1
+fi
+
+# Validate VERSION_TYPE
+if [[ "$VERSION_TYPE" != "major" && "$VERSION_TYPE" != "minor" && "$VERSION_TYPE" != "patch" ]]; then
+  echo "❌ Error: VERSION_TYPE must be one of: major, minor, or patch."
+  exit 1
+fi
+
+BUILD_DIRECTORY="$WORK_DIR/build"
+RELEASE_DIRECTORY="$BUILD_DIRECTORY/releases"
+
+# Navigate to the working directory.
+cd "${WORK_DIR}"
+
+# Create the release directory.
+if [ ! -d "$RELEASE_DIRECTORY" ]; then
+  mkdir -p "$RELEASE_DIRECTORY"
+else
+  rm -rf "$RELEASE_DIRECTORY"/*
+fi
+
+# Extract current version.
+CURRENT_VERSION=$(git describe --tags --abbrev=0 2>/dev/null || echo "0.0.0")
+IFS='.' read -r MAJOR MINOR PATCH <<< "${CURRENT_VERSION}"
+
+# Determine which part to increment
+case "$VERSION_TYPE" in
+  major)
+    MAJOR=$((MAJOR + 1))
+    MINOR=0
+    PATCH=0
+    ;;
+  minor)
+    MINOR=$((MINOR + 1))
+    PATCH=0
+    ;;
+  patch|*)
+    PATCH=$((PATCH + 1))
+    ;;
+esac
+
+NEW_VERSION="${MAJOR}.${MINOR}.${PATCH}"
+
+echo "Creating release packages for version $NEW_VERSION..."
+
+# List of supported OSes.
+oses=("linux" "linux-arm" "darwin")
+
+# Navigate to the release directory.
+cd "${RELEASE_DIRECTORY}"
+
+for os in "${oses[@]}"; do
+  os_dir="../$os"
+  
+  if [ -d "$os_dir" ]; then
+    release_artifact_folder="openmcpauthproxy_${os}-v${NEW_VERSION}"
+    mkdir -p "$release_artifact_folder"
+
+    cp -r $os_dir/* "$release_artifact_folder"
+
+    # Zip the release package.
+    zip_file="$release_artifact_folder.zip"
+    echo "Creating $zip_file..."
+    zip -r "$zip_file" "$release_artifact_folder"
+
+    # Delete the folder after zipping.
+    rm -rf "$release_artifact_folder"
+
+    # Generate checksum file.
+    sha256sum "$zip_file" | sed "s|target/releases/||" > "$zip_file.sha256"
+    echo "Checksum generated for the $os package."
+
+    echo "Release packages created successfully for $os."
+  else
+    echo "Skipping $os release package creation as the build artifacts are not available."
+  fi
+done
+
+echo "Release packages created successfully in $RELEASE_DIRECTORY."
+
+# Navigate back to the project root directory.
+cd "${WORK_DIR}"
+
+# Collect all ZIP and .sha256 files in the target/releases directory.
+FILES_TO_UPLOAD=$(find build/releases -type f \( -name "*.zip" -o -name "*.sha256" \))
+
+# Create a release with the current version.
+TAG_NAME="v${NEW_VERSION}"
+export GITHUB_TOKEN="${GIT_TOKEN}"
+gh release create "${TAG_NAME}" ${FILES_TO_UPLOAD} --title "${TAG_NAME}" --notes "OpenMCPAuthProxy - ${TAG_NAME}" --target "${UPSTREAM_BRANCH}" || { echo "Failed to create release"; exit 1; }
+
+
+echo "Release ${TAG_NAME} created successfully."