feat(): add support for macOS (pauldemarco#626)

* feat(): add support for macOS * fix(): remove conflicting flutter.plugin keys from pubspec.yaml The flutter.plugin.platforms key cannot be used in combination with the old flutter.plugin.{androidPackage,iosPrefix,pluginClass} keys. See: https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin
blbhargav · Aug 22, 2020 · 207943a · 207943a
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diff --git a/example/macos/.gitignore b/example/macos/.gitignore
@@ -0,0 +1,6 @@
+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/xcuserdata/
diff --git a/example/macos/Flutter/Flutter-Debug.xcconfig b/example/macos/Flutter/Flutter-Debug.xcconfig
@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/example/macos/Flutter/Flutter-Release.xcconfig b/example/macos/Flutter/Flutter-Release.xcconfig
@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "ephemeral/Flutter-Generated.xcconfig"
diff --git a/example/macos/Flutter/GeneratedPluginRegistrant.swift b/example/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -0,0 +1,12 @@
+//
+//  Generated file. Do not edit.
+//
+
+import FlutterMacOS
+import Foundation
+
+import flutter_blue
+
+func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  FlutterBluePlugin.register(with: registry.registrar(forPlugin: "FlutterBluePlugin"))
+}
diff --git a/example/macos/Podfile b/example/macos/Podfile
@@ -0,0 +1,82 @@
+platform :osx, '10.13'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def parse_KV_file(file, separator='=')
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return [];
+  end
+  pods_ary = []
+  skip_line_start_symbols = ["#", "/"]
+  File.foreach(file_abs_path) { |line|
+      next if skip_line_start_symbols.any? { |symbol| line =~ /^\s*#{symbol}/ }
+      plugin = line.split(pattern=separator)
+      if plugin.length == 2
+        podname = plugin[0].strip()
+        path = plugin[1].strip()
+        podpath = File.expand_path("#{path}", file_abs_path)
+        pods_ary.push({:name => podname, :path => podpath});
+      else
+        puts "Invalid plugin specification: #{line}"
+      end
+  }
+  return pods_ary
+end
+
+def pubspec_supports_macos(file)
+  file_abs_path = File.expand_path(file)
+  if !File.exists? file_abs_path
+    return false;
+  end
+  File.foreach(file_abs_path) { |line|
+    return true if line =~ /^\s*macos:/
+  }
+  return false
+end
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  # Prepare symlinks folder. We use symlinks to avoid having Podfile.lock
+  # referring to absolute paths on developers' machines.
+  ephemeral_dir = File.join('Flutter', 'ephemeral')
+  symlink_dir = File.join(ephemeral_dir, '.symlinks')
+  symlink_plugins_dir = File.join(symlink_dir, 'plugins')
+  system("rm -rf #{symlink_dir}")
+  system("mkdir -p #{symlink_plugins_dir}")
+
+  # Flutter Pods
+  generated_xcconfig = parse_KV_file(File.join(ephemeral_dir, 'Flutter-Generated.xcconfig'))
+  if generated_xcconfig.empty?
+    puts "Flutter-Generated.xcconfig must exist. If you're running pod install manually, make sure flutter packages get is executed first."
+  end
+  generated_xcconfig.map { |p|
+    if p[:name] == 'FLUTTER_FRAMEWORK_DIR'
+      symlink = File.join(symlink_dir, 'flutter')
+      File.symlink(File.dirname(p[:path]), symlink)
+      pod 'FlutterMacOS', :path => File.join(symlink, File.basename(p[:path]))
+    end
+  }
+
+  # Plugin Pods
+  plugin_pods = parse_KV_file('../.flutter-plugins')
+  plugin_pods.map { |p|
+    symlink = File.join(symlink_plugins_dir, p[:name])
+    File.symlink(p[:path], symlink)
+    if pubspec_supports_macos(File.join(symlink, 'pubspec.yaml'))
+      pod p[:name], :path => File.join(symlink, 'macos')
+    end
+  }
+end
+
+# Prevent Cocoapods from embedding a second Flutter framework and causing an error with the new Xcode build system.
+install! 'cocoapods', :disable_input_output_paths => true
diff --git a/example/macos/Podfile.lock b/example/macos/Podfile.lock
@@ -0,0 +1,32 @@
+PODS:
+  - flutter_blue (0.0.1):
+    - flutter_blue/Protos (= 0.0.1)
+    - FlutterMacOS
+  - flutter_blue/Protos (0.0.1):
+    - FlutterMacOS
+    - Protobuf (~> 3.11.4)
+  - FlutterMacOS (1.0.0)
+  - Protobuf (3.11.4)
+
+DEPENDENCIES:
+  - flutter_blue (from `Flutter/ephemeral/.symlinks/plugins/flutter_blue/macos`)
+  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64`)
+
+SPEC REPOS:
+  trunk:
+    - Protobuf
+
+EXTERNAL SOURCES:
+  flutter_blue:
+    :path: Flutter/ephemeral/.symlinks/plugins/flutter_blue/macos
+  FlutterMacOS:
+    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64
+
+SPEC CHECKSUMS:
+  flutter_blue: 2756506bb10a51e075832da287b48bf5377bdc28
+  FlutterMacOS: 15bea8a44d2fa024068daa0140371c020b4b6ff9
+  Protobuf: 176220c526ad8bd09ab1fb40a978eac3fef665f7
+
+PODFILE CHECKSUM: 91a45292e3c63eb73c6e52036eeb01a52e7ae4df
+
+COCOAPODS: 1.9.2
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		@@ -0,0 +1,2 @@
		#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
		#include "ephemeral/Flutter-Generated.xcconfig"