Add Linting to Build Phase + Fix Linting Errors

Also added swiftlint.yml to IOSExample project root in order to pick up rule modifications.

Author: zombieobject

XMTPiOSExample/.swiftlint.yml

@@ -0,0 +1,36 @@
+excluded:
+  - Sources/XMTP/Proto
+
+disabled_rules: # rule identifiers turned on by default to exclude from running
+  - type_name
+  - identifier_name
+  - multiple_closures_with_trailing_closure
+  - cyclomatic_complexity
+  - trailing_comma
+  - opening_brace
+  - nesting
+  - type_body_length
+  - file_length
+
+opt_in_rules:
+  - force_unwrapping
+
+force_unwrapping:
+  severity: error
+
+line_length: 500
+
+custom_rules:
+  no_optional_try: # rule identifier
+    included:
+      - ".*\\.swift" # regex that defines paths to include during linting. optional.
+    excluded:
+      - ".*Tests?\\.swift" # regex that defines paths to exclude during linting. optional
+    name: "No optional try" # rule name. optional.
+    regex: try[\\?]
+    capture_group: 0 # number of regex capture group to highlight the rule violation at. optional.
+    message: "Handle this error instead of doing this.." # violation message. optional.
+    severity: error # violation severity. optional.
+    #match_kinds:# SyntaxKinds to match. optional.
+    #   - comment
+    # - identifier

XMTPiOSExample/XMTPiOSExample.xcodeproj/project.pbxproj

@@ -238,6 +238,7 @@
 				A628198B292DC825004B9117 /* Sources */,
 				A628198C292DC825004B9117 /* Frameworks */,
 				A628198D292DC825004B9117 /* Resources */,
+				636E6B4E2B890E7300B43B62 /* Code Linter: SwiftLint */,
 				A65F0701297B5BCC00C3C76E /* Embed Foundation Extensions */,
 			);
 			buildRules = (
@@ -344,6 +345,28 @@
 		};
 /* End PBXResourcesBuildPhase section */
 
+/* Begin PBXShellScriptBuildPhase section */
+		636E6B4E2B890E7300B43B62 /* Code Linter: SwiftLint */ = {
+			isa = PBXShellScriptBuildPhase;
+			alwaysOutOfDate = 1;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+			);
+			name = "Code Linter: SwiftLint";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "if [ $ACTION != \"indexbuild\" ]; then\n  if which swiftlint >/dev/null; then\n    swiftlint lint --strict\n  else \n    echo \"warning: SwiftLint not installed, install it via Homebrew according to README instructions\"\n  fi\nfi\n\n";
+		};
+/* End PBXShellScriptBuildPhase section */
+
 /* Begin PBXSourcesBuildPhase section */
 		A628198B292DC825004B9117 /* Sources */ = {
 			isa = PBXSourcesBuildPhase;

XMTPiOSExample/XMTPiOSExample/Account/WalletConnection.swift

@@ -10,7 +10,6 @@ import UIKit
 import WalletConnectSwift
 import web3
 import XMTPiOS
-import UIKit
 
 extension WCURL {
 	var asURL: URL {
@@ -183,7 +182,7 @@ class WCWalletConnection: WalletConnection, WalletConnectSwift.ClientDelegate {
 	func client(_: WalletConnectSwift.Client, didFailToConnect _: WalletConnectSwift.WCURL) {}
 
 	func client(_: WalletConnectSwift.Client, didConnect session: WalletConnectSwift.Session) {
-		// TODO: Cache session
+		// Future Implementation Cache session
 		self.session = session
 	}
 

XMTPiOSExample/XMTPiOSExample/Views/LoginView.swift

@@ -181,6 +181,7 @@ struct LoginView: View {
 			}
 			.store(in: &publishers)
 	}
+    // swiftlint:enable function_body_length
 
 	var body: some View {
 		ModalWrapper()

XMTPiOSExample/XMTPiOSExample/Views/MessageCellView.swift

@@ -60,7 +60,6 @@ struct MessageTextView: View {
 		} catch {
 			return message.fallbackContent
 		}
-		// swiftlint:enable force_try
 	}
 
 	var background: Color {

XMTPiOSExample/XMTPiOSExample/Views/MessageListView.swift

@@ -43,6 +43,7 @@ struct MessageListView: View {
 struct MessageListView_Previews: PreviewProvider {
 	static var previews: some View {
 		PreviewClientProvider { client in
+            // swiftlint: disable comma
 			MessageListView(
 				myAddress: "0x00", messages: [
 					DecodedMessage.preview(client: client, topic: "foo", body: "Hello", senderAddress: "0x00", sent: Date().addingTimeInterval(-10)),
@@ -53,6 +54,7 @@ struct MessageListView_Previews: PreviewProvider {
 					DecodedMessage.preview(client: client, topic: "foo",body: "🧐", senderAddress: "0x00", sent: Date().addingTimeInterval(-5)),
 				]
 			)
+            // swiftlint: enable comma
 		}
 	}
 }