Add iOS/macOS build support and fixes

GNUmakefile

@@ -53,7 +53,7 @@ app: app-apk app-linux
 	rm -f $(DART_DEFINES)
 
 GH_REMOTE   ?= gh
-DEB_VERSION := $(shell head -1 debian/changelog.in | grep -oP '\(\K[^)]+' | sed 's/VENDOR_VERSION//')
+DEB_VERSION := $(shell head -1 debian/changelog.in | sed -n 's/.*(\([^)]*\)).*/\1/p' | sed 's/VENDOR_VERSION//')
 DEB_UPSTREAM := $(firstword $(subst -, ,$(DEB_VERSION)))
 RELEASE_TAG  = v$(DEB_UPSTREAM)
 RELEASE_DEBS = $(wildcard ../release/all/paperman_$(DEB_VERSION)_*.deb)
@@ -100,7 +100,7 @@ setup:
 	scripts/setup.sh
 
 .PHONY: app app-demo app-test dart-defines app-apk app-aab app-publish
-.PHONY: app-upload app-scp app-scp-only app-scp-watch app-linux app-clean
+.PHONY: app-upload app-scp app-scp-only app-scp-watch app-ios app-ios-install app-linux app-clean
 dart-defines:
 	@echo '{"BUILD_DATE":"$(BUILD_DATE)"}' > $(DART_DEFINES)
 
@@ -135,6 +135,17 @@ app-scp-watch:
 		scp $(APP_APK) $(APP_SERVER); \
 	done
 
+app-ios: dart-defines
+	cd app && flutter build ios $(FLUTTER_ARGS)
+
+app-ios-install: app-ios
+	xcrun devicectl device install app --device $(IOS_DEVICE) $(APP_IOS)
+
+# Set IOS_DEVICE to your iPad/iPhone device ID (from Xcode or
+# `xcrun devicectl list devices`).
+IOS_DEVICE ?= 00008122-0001786226E8401C
+APP_IOS    = app/build/ios/iphoneos/Runner.app
+
 app-linux: dart-defines
 	# Clear CMake cache so find_library() re-discovers libpdfium.so from
 	# the printing plugin's download rather than a stale bundle/lib/ path.

app/ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

app/ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

app/ios/Podfile

@@ -0,0 +1,43 @@
+# Uncomment this line to define a global platform for your project
+# platform :ios, '13.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+  target 'RunnerTests' do
+    inherit! :search_paths
+  end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

app/ios/Podfile.lock

@@ -0,0 +1,55 @@
+PODS:
+  - Flutter (1.0.0)
+  - package_info_plus (0.4.5):
+    - Flutter
+  - pdfrx (0.0.6):
+    - Flutter
+    - FlutterMacOS
+  - printing (1.0.0):
+    - Flutter
+  - shared_preferences_foundation (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - sqflite_darwin (0.0.4):
+    - Flutter
+    - FlutterMacOS
+  - url_launcher_ios (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
+  - pdfrx (from `.symlinks/plugins/pdfrx/darwin`)
+  - printing (from `.symlinks/plugins/printing/ios`)
+  - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/darwin`)
+  - sqflite_darwin (from `.symlinks/plugins/sqflite_darwin/darwin`)
+  - url_launcher_ios (from `.symlinks/plugins/url_launcher_ios/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  package_info_plus:
+    :path: ".symlinks/plugins/package_info_plus/ios"
+  pdfrx:
+    :path: ".symlinks/plugins/pdfrx/darwin"
+  printing:
+    :path: ".symlinks/plugins/printing/ios"
+  shared_preferences_foundation:
+    :path: ".symlinks/plugins/shared_preferences_foundation/darwin"
+  sqflite_darwin:
+    :path: ".symlinks/plugins/sqflite_darwin/darwin"
+  url_launcher_ios:
+    :path: ".symlinks/plugins/url_launcher_ios/ios"
+
+SPEC CHECKSUMS:
+  Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467
+  package_info_plus: af8e2ca6888548050f16fa2f1938db7b5a5df499
+  pdfrx: 310e84d01e06fd2af26e16507a0e48c27e99195c
+  printing: 54ff03f28fe9ba3aa93358afb80a8595a071dd07
+  shared_preferences_foundation: 7036424c3d8ec98dfe75ff1667cb0cd531ec82bb
+  sqflite_darwin: 20b2a3a3b70e43edae938624ce550a3cbf66a3d0
+  url_launcher_ios: 7a95fa5b60cc718a708b8f2966718e93db0cef1b
+
+PODFILE CHECKSUM: 3c63482e143d1b91d2d2560aee9fb04ecc74ac7e
+
+COCOAPODS: 1.16.2