improve podspec detection

Author: sunnylqm

react-native-update.podspec

@@ -9,32 +9,74 @@ podspec_dir = File.dirname(__FILE__)
 Pod::Spec.new do |s|
 
   is_expo_in_podfile = false
-  is_version_sufficient = false
   begin
     # Check Podfile for use_expo_modules!
     podfile_path = File.join(Pod::Config.instance.installation_root, 'Podfile')
     if File.exist?(podfile_path)
       podfile_content = File.read(podfile_path)
       is_expo_in_podfile = podfile_content.include?('use_expo_modules!')
     end
-    # Check root package.json for Expo version >= 50
-    root_package_json_path = File.join(podspec_dir, '..', '..', 'package.json')
-    if File.exist?(root_package_json_path)
-        pkg_json = JSON.parse(File.read(root_package_json_path))
-        expo_version_string = pkg_json['dependencies']&.[]('expo') || pkg_json['devDependencies']&.[]('expo')
-        if expo_version_string
-          match = expo_version_string.match(/\d+/)
+  rescue => e
+     # Silently ignore errors during check
+  end
+
+  # Determine final validity by checking Podfile presence AND Expo version
+  valid_expo_project = false # Default
+  if is_expo_in_podfile
+    # Only check expo version if use_expo_modules! is present
+    is_version_sufficient = false
+    begin
+        expo_version_str = `node --print \"require('expo/package.json').version\"`.strip
+        if expo_version_str && !expo_version_str.empty?
+          match = expo_version_str.match(/^\d+/)
           if match
             major_version = match[0].to_i
             is_version_sufficient = major_version >= 50
           end
         end
+    rescue
+        # Node command failed, version remains insufficient
     end
-  rescue => e
-     # Silently ignore errors during check
+    
+    # Final check
+    valid_expo_project = is_version_sufficient
   end
-  # Determine final validity
-  valid_expo_project = is_expo_in_podfile && is_version_sufficient
+
+  # Set platform based on whether it's a valid Expo project and if we can parse its target
+  final_ios_deployment_target = '11.0' # Default target
+
+  if valid_expo_project
+    # --- Try to find and parse ExpoModulesCore.podspec only if it's an Expo project ---
+    parsed_expo_ios_target = nil
+    expo_modules_core_podspec_path = begin
+        package_json_path = `node -p "require.resolve('expo-modules-core/package.json')"`.strip
+        File.join(File.dirname(package_json_path), 'ExpoModulesCore.podspec') if $?.success? && package_json_path && !package_json_path.empty?
+    rescue
+        nil
+    end
+
+    if expo_modules_core_podspec_path && File.exist?(expo_modules_core_podspec_path)
+      begin
+        content = File.read(expo_modules_core_podspec_path)
+        match = content.match(/s\.platforms\s*=\s*\{[\s\S]*?:ios\s*=>\s*'([^\']+)'/) # Match within s.platforms hash
+        if match && match[1]
+          parsed_expo_ios_target = match[1]
+        else
+          match = content.match(/s\.platform\s*=\s*:ios,\s*'([^\']+)'/) # Fallback to s.platform = :ios, 'version'
+          if match && match[1]
+            parsed_expo_ios_target = match[1]
+          end
+        end
+      rescue => e
+        # Pod::UI.warn "Failed to read or parse ExpoModulesCore.podspec content: #{e.message}"
+      end
+    end
+    if parsed_expo_ios_target
+        final_ios_deployment_target = parsed_expo_ios_target
+    end
+  end
+
+  s.platforms = { :ios => final_ios_deployment_target }
 
   s.name         = package['name']
   s.version      = package['version']
@@ -45,8 +87,7 @@ Pod::Spec.new do |s|
   s.homepage     = package['homepage']
 
   s.cocoapods_version = '>= 1.6.0'
-  # s.platform = :ios, "8.0"
-  # s.platforms = { :ios => "11.0" }
+
   s.source = { :git => 'https://github.com/reactnativecn/react-native-update.git', :tag => '#{s.version}' }
 
   # Conditionally set source files
@@ -92,20 +133,26 @@ Pod::Spec.new do |s|
   # Conditionally add Expo subspec and check ExpoModulesCore version
   if valid_expo_project
     supports_bundle_url_final = false # Default
-    begin
-      # Check installed ExpoModulesCore version for bundle URL support
-      expo_core_package_json_path = File.join(podspec_dir, '..', 'expo-modules-core', 'package.json')
-      if File.exist?(expo_core_package_json_path)
-          core_package_json = JSON.parse(File.read(expo_core_package_json_path))
-          installed_version_str = core_package_json['version']
-          if installed_version_str
-            installed_version = Gem::Version.new(installed_version_str)
+
+    # 1. Try executing node to get the version string
+    expo_modules_core_version_str = begin
+      # Use node to directly require expo-modules-core/package.json and get its version
+      `node --print \"require('expo-modules-core/package.json').version\"` # Execute, keep raw output
+    rescue
+      # Node command failed (e.g., node not found, package not found). Return empty string.
+      ''
+    end
+
+    # 2. Process the obtained version string (if not empty)
+    if expo_modules_core_version_str && !expo_modules_core_version_str.empty?
+        begin
+            # Compare versions using Gem::Version (handles trailing newline)
+            installed_version = Gem::Version.new(expo_modules_core_version_str)
             target_version = Gem::Version.new('1.12.0')
             supports_bundle_url_final = installed_version >= target_version
-          end
-      end
-    rescue JSON::ParserError, Errno::ENOENT, ArgumentError, StandardError => e
-      # Pod::UI.warn "Could not check ExpoModulesCore version: #{e.message}"
+        rescue ArgumentError
+            # If Gem::Version fails parsing, supports_bundle_url_final remains false.
+        end
     end
 
     s.subspec 'Expo' do |ss|