Default to use the old build system in Xcode 10

Xcode 10's new build system seems to cause issues when installing
to simulator/device (due to the use of stub Info.plists) and when
building tests.

PiperOrigin-RevId: 199355264
diff --git a/src/TulsiGenerator/XcodeProjectGenerator.swift b/src/TulsiGenerator/XcodeProjectGenerator.swift
index 06b0c8c..95556f2 100644
--- a/src/TulsiGenerator/XcodeProjectGenerator.swift
+++ b/src/TulsiGenerator/XcodeProjectGenerator.swift
@@ -579,7 +579,11 @@
 
 
     let workspaceSharedDataURL = projectURL.appendingPathComponent("project.xcworkspace/xcshareddata")
-    try writeWorkspaceSettings(["IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded": false as AnyObject],
+    let sharedWorkspaceSettings: [String: Any] = [
+      "BuildSystemType": "Original",
+      "IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded": false as AnyObject,
+    ]
+    try writeWorkspaceSettings(sharedWorkspaceSettings,
                                toDirectoryAtURL: workspaceSharedDataURL,
                                replaceIfExists: true)
 
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/IosLegacyTestProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/IosLegacyTestProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/IosLegacyTestProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/IosLegacyTestProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleSkylarkProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleSkylarkProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleSkylarkProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleSkylarkProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
index 08de0be..a3f43a8 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -2,6 +2,8 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
 	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
 	<false/>
 </dict>