From b094e22e97cce702dd1fe872a35f7456964a98a4 Mon Sep 17 00:00:00 2001
From: Joe Elliott <joeboyscout04@gmail.com>
Date: Wed, 6 Dec 2017 19:41:29 +0100
Subject: [PATCH 1/8] work on finding asset catalogs and refactor.

---
 Classes/main.swift                            | 29 ++++++++++++-------
 .../AssetChecker.xcodeproj/project.pbxproj    | 12 ++++++++
 2 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/Classes/main.swift b/Classes/main.swift
index 5a9f6fd..3227da7 100755
--- a/Classes/main.swift
+++ b/Classes/main.swift
@@ -52,16 +52,25 @@ func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [St
     return elements
 }
 
+// MARK: - Search for asset catalogs
+let assetCatalogPaths = elementsInEnumerator(FileManager.default.enumerator(atPath: sourcePath)).filter { $0.hasSuffix(".xcassets") }
+
+print("Searching sources in \(sourcePath) for assets in \(assetCatalogPaths)")
 
 // MARK: - List Assets
 
-func listAssets() -> [String] {
-    let extensionName = "imageset"
-    let enumerator = FileManager.default.enumerator(atPath: assetCatalogAbsolutePath)
-    return elementsInEnumerator(enumerator)
-        .filter { $0.hasSuffix(extensionName) }                             // Is Asset
-        .map { $0.replacingOccurrences(of: ".\(extensionName)", with: "") } // Remove extension
-        .map { $0.components(separatedBy: "/").last ?? $0 }                 // Remove folder path
+func listAssets() -> [(asset: String, catalog: String)] {
+    
+    return assetCatalogPaths.flatMap { (catalog) -> [(asset: String, catalog: String)] in
+        
+        let extensionName = "imageset"
+        let enumerator = FileManager.default.enumerator(atPath: assetCatalogAbsolutePath)
+        return elementsInEnumerator(enumerator)
+            .filter { $0.hasSuffix(extensionName) }                             // Is Asset
+            .map { $0.replacingOccurrences(of: ".\(extensionName)", with: "") } // Remove extension
+            .map { $0.components(separatedBy: "/").last ?? $0 }                 // Remove folder path
+            .map { (asset: $0,catalog: catalog)}
+    }
 }
 
 
@@ -88,14 +97,12 @@ func localizedStrings(inStringFile: String) -> [String] {
     return localizedStrings
 }
 
-func listUsedAssetLiterals() -> [String] {
+func listUsedAssetLiterals() -> [(asset: String, references: [String])] {
     let enumerator = FileManager.default.enumerator(atPath:sourcePath)
-    print(sourcePath)
     return elementsInEnumerator(enumerator)
         .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }    // Only Swift and Obj-C files
         .map { "\(sourcePath)/\($0)" }                             // Build file paths
         .map { try? String(contentsOfFile: $0, encoding: .utf8)}    // Get file contents
-        .flatMap{$0}
         .flatMap{$0}                                                // Remove nil entries
         .map(localizedStrings)                                      // Find localizedStrings ocurrences
         .flatMap{$0}                                                // Flatten
@@ -108,11 +115,13 @@ let used = Set(listUsedAssetLiterals() + ignoredUnusedNames)
 
 
 // Generate Warnings for Unused Assets
+// (name, catalog)
 let unused = assets.subtracting(used)
 unused.forEach { print("\(assetCatalogAbsolutePath):: warning: [Asset Unused] \($0)") }
 
 
 // Generate Error for broken Assets
+// (name, [fileReferences])
 let broken = used.subtracting(assets)
 broken.forEach { print("\(assetCatalogAbsolutePath):: error: [Asset Missing] \($0)") }
 
diff --git a/Example/AssetChecker.xcodeproj/project.pbxproj b/Example/AssetChecker.xcodeproj/project.pbxproj
index e323d60..30f6e08 100644
--- a/Example/AssetChecker.xcodeproj/project.pbxproj
+++ b/Example/AssetChecker.xcodeproj/project.pbxproj
@@ -15,6 +15,7 @@
 		607FACDD1AFB9204008FA782 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 607FACDC1AFB9204008FA782 /* Images.xcassets */; };
 		607FACE01AFB9204008FA782 /* LaunchScreen.xib in Resources */ = {isa = PBXBuildFile; fileRef = 607FACDE1AFB9204008FA782 /* LaunchScreen.xib */; };
 		607FACEC1AFB9204008FA782 /* Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607FACEB1AFB9204008FA782 /* Tests.swift */; };
+		AFC739991FD86E9E00B5B103 /* Media.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = AFC739981FD86E9E00B5B103 /* Media.xcassets */; };
 		BA341A14EF45F09231AACBFE /* Pods_AssetChecker_Example.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B2F82D1638FD77B9042FE9A6 /* Pods_AssetChecker_Example.framework */; };
 /* End PBXBuildFile section */
 
@@ -47,6 +48,7 @@
 		607FACEA1AFB9204008FA782 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		607FACEB1AFB9204008FA782 /* Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Tests.swift; sourceTree = "<group>"; };
 		63C1D8F311B1C327036F7550 /* AssetChecker.podspec */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text; name = AssetChecker.podspec; path = ../AssetChecker.podspec; sourceTree = "<group>"; };
+		AFC739981FD86E9E00B5B103 /* Media.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Media.xcassets; sourceTree = "<group>"; };
 		B2F82D1638FD77B9042FE9A6 /* Pods_AssetChecker_Example.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_AssetChecker_Example.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		C2AB56DA4BC27DE54F97B2E5 /* Pods-AssetChecker_Example.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Example.release.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Example/Pods-AssetChecker_Example.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -95,6 +97,7 @@
 		607FACD21AFB9204008FA782 /* Example for AssetChecker */ = {
 			isa = PBXGroup;
 			children = (
+				AFC739971FD86E8E00B5B103 /* Resources */,
 				607FACD51AFB9204008FA782 /* AppDelegate.swift */,
 				607FACD71AFB9204008FA782 /* ViewController.swift */,
 				607FACD91AFB9204008FA782 /* Main.storyboard */,
@@ -142,6 +145,14 @@
 			name = "Podspec Metadata";
 			sourceTree = "<group>";
 		};
+		AFC739971FD86E8E00B5B103 /* Resources */ = {
+			isa = PBXGroup;
+			children = (
+				AFC739981FD86E9E00B5B103 /* Media.xcassets */,
+			);
+			path = Resources;
+			sourceTree = "<group>";
+		};
 		D341C51AD021821B48CE184D /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
@@ -252,6 +263,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				AFC739991FD86E9E00B5B103 /* Media.xcassets in Resources */,
 				5D8C437E1FC6CB2100DDF7D0 /* run in Resources */,
 				607FACDB1AFB9204008FA782 /* Main.storyboard in Resources */,
 				607FACE01AFB9204008FA782 /* LaunchScreen.xib in Resources */,

From f2e28de18fd61d21b0568df9ad8e2cf7db47c211 Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joseph.elliott@daresay.co>
Date: Thu, 6 Sep 2018 17:19:26 +0200
Subject: [PATCH 2/8] Find asset catalogs, add some testing images, improve
 error messages.

---
 Classes/main.swift                            |  78 +++++++++---------
 .../AssetChecker.xcodeproj/project.pbxproj    |  29 ++++---
 .../AssetChecker/Base.lproj/LaunchScreen.xib  |  18 ++--
 .../AssetChecker/Base.lproj/Main.storyboard   |  20 +++--
 .../Images.xcassets/Contents.json             |   6 ++
 .../icon_green.imageset/Contents.json         |  23 ++++++
 .../icon_green.imageset/icons8-144.png        | Bin 0 -> 2264 bytes
 .../icon_green.imageset/icons8-48.png         | Bin 0 -> 656 bytes
 .../icon_green.imageset/icons8-96.png         | Bin 0 -> 1382 bytes
 .../icon_purple.imageset/Contents.json        |  12 +++
 .../icons8-icons8_purple.pdf                  | Bin 0 -> 1522 bytes
 .../Resources/Media.xcassets/Contents.json    |   6 ++
 .../icon_blue.imageset/Contents.json          |  12 +++
 .../icon_blue.imageset/icons8-icons8_blue.pdf | Bin 0 -> 1520 bytes
 .../icon_red.imageset/Contents.json           |  23 ++++++
 .../icon_red.imageset/icons8-144.png          | Bin 0 -> 1969 bytes
 .../icon_red.imageset/icons8-48.png           | Bin 0 -> 672 bytes
 .../icon_red.imageset/icons8-96.png           | Bin 0 -> 1276 bytes
 18 files changed, 162 insertions(+), 65 deletions(-)
 create mode 100644 Example/AssetChecker/Images.xcassets/Contents.json
 create mode 100644 Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json
 create mode 100644 Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-144.png
 create mode 100644 Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-48.png
 create mode 100644 Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-96.png
 create mode 100644 Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json
 create mode 100644 Example/AssetChecker/Images.xcassets/icon_purple.imageset/icons8-icons8_purple.pdf
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/Contents.json
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/icons8-icons8_blue.pdf
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-144.png
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-48.png
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-96.png

diff --git a/Classes/main.swift b/Classes/main.swift
index 3227da7..abfca5a 100755
--- a/Classes/main.swift
+++ b/Classes/main.swift
@@ -4,15 +4,12 @@ import Foundation
 
 // Configure me \o/
 var sourcePathOption:String? = nil
-var assetCatalogPathOption:String? = nil
 let ignoredUnusedNames = [String]()
 
 for (index, arg) in CommandLine.arguments.enumerated() {
     switch index {
     case 1:
         sourcePathOption = arg
-    case 2:
-        assetCatalogPathOption = arg
     default:
         break
     }
@@ -23,27 +20,6 @@ guard let sourcePath = sourcePathOption else {
     exit(0)
 }
 
-guard let assetCatalogAbsolutePath = assetCatalogPathOption else {
-    print("AssetChecker:: error: Asset Catalog path was missing!")
-    exit(0)
-}
-
-print("Searching sources in \(sourcePath) for assets in \(assetCatalogAbsolutePath)")
-
-/* Put here the asset generating false positives, 
- For instance whne you build asset names at runtime
-let ignoredUnusedNames = [
-    "IconArticle",
-    "IconMedia",
-    "voteEN",
-    "voteES",
-    "voteFR"
-] 
-*/
-
-
-// MARK : - End Of Configurable Section
-
 func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [String] {
     var elements = [String]()
     while let e = enumerator?.nextObject() as? String {
@@ -64,7 +40,7 @@ func listAssets() -> [(asset: String, catalog: String)] {
     return assetCatalogPaths.flatMap { (catalog) -> [(asset: String, catalog: String)] in
         
         let extensionName = "imageset"
-        let enumerator = FileManager.default.enumerator(atPath: assetCatalogAbsolutePath)
+        let enumerator = FileManager.default.enumerator(atPath: catalog)
         return elementsInEnumerator(enumerator)
             .filter { $0.hasSuffix(extensionName) }                             // Is Asset
             .map { $0.replacingOccurrences(of: ".\(extensionName)", with: "") } // Remove extension
@@ -97,33 +73,57 @@ func localizedStrings(inStringFile: String) -> [String] {
     return localizedStrings
 }
 
-func listUsedAssetLiterals() -> [(asset: String, references: [String])] {
+func listUsedAssetLiterals() -> [String: [String]]  {
     let enumerator = FileManager.default.enumerator(atPath:sourcePath)
-    return elementsInEnumerator(enumerator)
+    
+    var assetUsageMap: [String: [String]] = [:]
+    
+    let files = elementsInEnumerator(enumerator)
         .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }    // Only Swift and Obj-C files
-        .map { "\(sourcePath)/\($0)" }                             // Build file paths
-        .map { try? String(contentsOfFile: $0, encoding: .utf8)}    // Get file contents
-        .flatMap{$0}                                                // Remove nil entries
-        .map(localizedStrings)                                      // Find localizedStrings ocurrences
-        .flatMap{$0}                                                // Flatten
+    
+    for filename in files {
+        // Build file paths
+        let filepath = "\(sourcePath)/\(filename)"
+        
+        // Get file contents
+        if let fileContents = try? String(contentsOfFile: filepath, encoding: .utf8) {
+            // Find occurrences of asset names
+            let references = localizedStrings(inStringFile: fileContents)
+            
+            // assemble the map
+            for asset in references {
+                let updatedReferences = assetUsageMap[asset] ?? []
+                assetUsageMap[asset] = updatedReferences + [filename]
+            }
+        }
+    }
+    
+    return assetUsageMap
 }
 
 
 // MARK: - Begining of script
-let assets = Set(listAssets())
-let used = Set(listUsedAssetLiterals() + ignoredUnusedNames)
+
+let availableAssets = listAssets()
+let availableAssetNames = Set(availableAssets.map{$0.asset} )
+let usedAssets = listUsedAssetLiterals()
+let usedAssetNames = Set(usedAssets.keys + ignoredUnusedNames)
 
 
 // Generate Warnings for Unused Assets
 // (name, catalog)
-let unused = assets.subtracting(used)
-unused.forEach { print("\(assetCatalogAbsolutePath):: warning: [Asset Unused] \($0)") }
-
+let unused = availableAssets.filter({ (asset, catalog) -> Bool in !usedAssetNames.contains(asset) })
+unused.forEach { print("\($0):: warning: [Asset Unused] \($0) in \($1)") }
+// unused asset <name> found in <catalog>
 
 // Generate Error for broken Assets
 // (name, [fileReferences])
-let broken = used.subtracting(assets)
-broken.forEach { print("\(assetCatalogAbsolutePath):: error: [Asset Missing] \($0)") }
+let broken = usedAssets.filter { (assetName, references) -> Bool in
+    !availableAssetNames.contains(assetName)
+}
+
+broken.forEach { print("\($0):: error: [Asset Missing] \($0) found in files \($1)") }
+// asset <name> used in file <filename> wasn't found!
 
 if broken.count > 0 {
     exit(1)
diff --git a/Example/AssetChecker.xcodeproj/project.pbxproj b/Example/AssetChecker.xcodeproj/project.pbxproj
index 30f6e08..e9c6023 100644
--- a/Example/AssetChecker.xcodeproj/project.pbxproj
+++ b/Example/AssetChecker.xcodeproj/project.pbxproj
@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		3333CADC9CDF4D6C0279EAF6 /* Pods_AssetChecker_Tests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0BF5C510348421D31756E79F /* Pods_AssetChecker_Tests.framework */; };
+		5D7631B4214170BA0017A471 /* Media.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 5D7631B3214170BA0017A471 /* Media.xcassets */; };
 		5D8C437E1FC6CB2100DDF7D0 /* run in Resources */ = {isa = PBXBuildFile; fileRef = 5D8C437D1FC6CB2100DDF7D0 /* run */; };
 		607FACD61AFB9204008FA782 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607FACD51AFB9204008FA782 /* AppDelegate.swift */; };
 		607FACD81AFB9204008FA782 /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607FACD71AFB9204008FA782 /* ViewController.swift */; };
@@ -15,7 +16,6 @@
 		607FACDD1AFB9204008FA782 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 607FACDC1AFB9204008FA782 /* Images.xcassets */; };
 		607FACE01AFB9204008FA782 /* LaunchScreen.xib in Resources */ = {isa = PBXBuildFile; fileRef = 607FACDE1AFB9204008FA782 /* LaunchScreen.xib */; };
 		607FACEC1AFB9204008FA782 /* Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 607FACEB1AFB9204008FA782 /* Tests.swift */; };
-		AFC739991FD86E9E00B5B103 /* Media.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = AFC739981FD86E9E00B5B103 /* Media.xcassets */; };
 		BA341A14EF45F09231AACBFE /* Pods_AssetChecker_Example.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B2F82D1638FD77B9042FE9A6 /* Pods_AssetChecker_Example.framework */; };
 /* End PBXBuildFile section */
 
@@ -36,6 +36,7 @@
 		4E3F248C6D57FAF6F94A24BC /* Pods-AssetChecker_Tests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Tests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Tests/Pods-AssetChecker_Tests.debug.xcconfig"; sourceTree = "<group>"; };
 		5512D041F5A3EF8493D7505C /* Pods-AssetChecker_Example.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Example.debug.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Example/Pods-AssetChecker_Example.debug.xcconfig"; sourceTree = "<group>"; };
 		58816321B24F6A6272E52BB1 /* Pods-AssetChecker_Tests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Tests.release.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Tests/Pods-AssetChecker_Tests.release.xcconfig"; sourceTree = "<group>"; };
+		5D7631B3214170BA0017A471 /* Media.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Media.xcassets; sourceTree = "<group>"; };
 		5D8C437D1FC6CB2100DDF7D0 /* run */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; name = run; path = ../run; sourceTree = "<group>"; };
 		607FACD01AFB9204008FA782 /* AssetChecker_Example.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = AssetChecker_Example.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		607FACD41AFB9204008FA782 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -48,7 +49,6 @@
 		607FACEA1AFB9204008FA782 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		607FACEB1AFB9204008FA782 /* Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Tests.swift; sourceTree = "<group>"; };
 		63C1D8F311B1C327036F7550 /* AssetChecker.podspec */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text; name = AssetChecker.podspec; path = ../AssetChecker.podspec; sourceTree = "<group>"; };
-		AFC739981FD86E9E00B5B103 /* Media.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Media.xcassets; sourceTree = "<group>"; };
 		B2F82D1638FD77B9042FE9A6 /* Pods_AssetChecker_Example.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_AssetChecker_Example.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		C2AB56DA4BC27DE54F97B2E5 /* Pods-AssetChecker_Example.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AssetChecker_Example.release.xcconfig"; path = "Pods/Target Support Files/Pods-AssetChecker_Example/Pods-AssetChecker_Example.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -73,6 +73,14 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		5D7631B2214170A70017A471 /* Resources */ = {
+			isa = PBXGroup;
+			children = (
+				5D7631B3214170BA0017A471 /* Media.xcassets */,
+			);
+			path = Resources;
+			sourceTree = "<group>";
+		};
 		607FACC71AFB9204008FA782 = {
 			isa = PBXGroup;
 			children = (
@@ -97,7 +105,7 @@
 		607FACD21AFB9204008FA782 /* Example for AssetChecker */ = {
 			isa = PBXGroup;
 			children = (
-				AFC739971FD86E8E00B5B103 /* Resources */,
+				5D7631B2214170A70017A471 /* Resources */,
 				607FACD51AFB9204008FA782 /* AppDelegate.swift */,
 				607FACD71AFB9204008FA782 /* ViewController.swift */,
 				607FACD91AFB9204008FA782 /* Main.storyboard */,
@@ -145,14 +153,6 @@
 			name = "Podspec Metadata";
 			sourceTree = "<group>";
 		};
-		AFC739971FD86E8E00B5B103 /* Resources */ = {
-			isa = PBXGroup;
-			children = (
-				AFC739981FD86E9E00B5B103 /* Media.xcassets */,
-			);
-			path = Resources;
-			sourceTree = "<group>";
-		};
 		D341C51AD021821B48CE184D /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
@@ -230,6 +230,7 @@
 				TargetAttributes = {
 					607FACCF1AFB9204008FA782 = {
 						CreatedOnToolsVersion = 6.3.1;
+						DevelopmentTeam = JEH7PW263G;
 						LastSwiftMigration = 0900;
 					};
 					607FACE41AFB9204008FA782 = {
@@ -263,7 +264,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				AFC739991FD86E9E00B5B103 /* Media.xcassets in Resources */,
+				5D7631B4214170BA0017A471 /* Media.xcassets in Resources */,
 				5D8C437E1FC6CB2100DDF7D0 /* run in Resources */,
 				607FACDB1AFB9204008FA782 /* Main.storyboard in Resources */,
 				607FACE01AFB9204008FA782 /* LaunchScreen.xib in Resources */,
@@ -374,7 +375,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "${PODS_ROOT}/AssetChecker/run --catalog ${SRCROOT}/Resource/Images.xcassets";
+			shellScript = "${PODS_ROOT}/AssetChecker/run --source ${SRCROOT}\n";
 		};
 		CD3F94CDB64297E52FBE5D36 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
@@ -548,6 +549,7 @@
 			baseConfigurationReference = 5512D041F5A3EF8493D7505C /* Pods-AssetChecker_Example.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				DEVELOPMENT_TEAM = JEH7PW263G;
 				INFOPLIST_FILE = AssetChecker/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MODULE_NAME = ExampleApp;
@@ -563,6 +565,7 @@
 			baseConfigurationReference = C2AB56DA4BC27DE54F97B2E5 /* Pods-AssetChecker_Example.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				DEVELOPMENT_TEAM = JEH7PW263G;
 				INFOPLIST_FILE = AssetChecker/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				MODULE_NAME = ExampleApp;
diff --git a/Example/AssetChecker/Base.lproj/LaunchScreen.xib b/Example/AssetChecker/Base.lproj/LaunchScreen.xib
index 0ec11cb..aeef3c1 100644
--- a/Example/AssetChecker/Base.lproj/LaunchScreen.xib
+++ b/Example/AssetChecker/Base.lproj/LaunchScreen.xib
@@ -1,8 +1,12 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6214" systemVersion="14A314h" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14313.13.2" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6207"/>
-        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.9"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
@@ -11,20 +15,20 @@
             <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
             <subviews>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 CocoaPods. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" misplaced="YES" text="  Copyright (c) 2015 CocoaPods. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
                     <rect key="frame" x="20" y="439" width="441" height="21"/>
                     <fontDescription key="fontDescription" type="system" pointSize="17"/>
                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                     <nil key="highlightedColor"/>
                 </label>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="AssetChecker" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" misplaced="YES" text="AssetChecker" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
                     <rect key="frame" x="20" y="140" width="441" height="43"/>
                     <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                     <nil key="highlightedColor"/>
                 </label>
             </subviews>
-            <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+            <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
             <constraints>
                 <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
                 <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
diff --git a/Example/AssetChecker/Base.lproj/Main.storyboard b/Example/AssetChecker/Base.lproj/Main.storyboard
index 1b5cfbe..61e6f8f 100644
--- a/Example/AssetChecker/Base.lproj/Main.storyboard
+++ b/Example/AssetChecker/Base.lproj/Main.storyboard
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13771" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="vXZ-lx-hvc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14313.13.2" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="vXZ-lx-hvc">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13772"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.9"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -24,11 +24,14 @@
                             <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="dcL-fK-p7R">
                                 <rect key="frame" x="30" y="50" width="315" height="587"/>
                                 <subviews>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" translatesAutoresizingMaskIntoConstraints="NO" id="vXm-mP-bVU">
-                                        <rect key="frame" x="0.0" y="0.0" width="315" height="128"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" image="icon_green" translatesAutoresizingMaskIntoConstraints="NO" id="vXm-mP-bVU">
+                                        <rect key="frame" x="0.0" y="0.0" width="315" height="523"/>
                                     </imageView>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" translatesAutoresizingMaskIntoConstraints="NO" id="vDD-em-TGY">
-                                        <rect key="frame" x="0.0" y="128" width="315" height="459"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" image="icon_blue" translatesAutoresizingMaskIntoConstraints="NO" id="vDD-em-TGY">
+                                        <rect key="frame" x="0.0" y="523" width="315" height="48"/>
+                                    </imageView>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" image="icon_turquoise" translatesAutoresizingMaskIntoConstraints="NO" id="ulC-Sy-M6n">
+                                        <rect key="frame" x="0.0" y="571" width="315" height="16"/>
                                     </imageView>
                                 </subviews>
                             </stackView>
@@ -46,4 +49,9 @@
             </objects>
         </scene>
     </scenes>
+    <resources>
+        <image name="icon_blue" width="48" height="48"/>
+        <image name="icon_green" width="48" height="48"/>
+        <image name="icon_turquoise" width="16" height="16"/>
+    </resources>
 </document>
diff --git a/Example/AssetChecker/Images.xcassets/Contents.json b/Example/AssetChecker/Images.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/Example/AssetChecker/Images.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json b/Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json
new file mode 100644
index 0000000..234dcea
--- /dev/null
+++ b/Example/AssetChecker/Images.xcassets/icon_green.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-48.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-96.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-144.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-144.png b/Example/AssetChecker/Images.xcassets/icon_green.imageset/icons8-144.png
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diff --git a/Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json
new file mode 100644
index 0000000..107fffe
--- /dev/null
+++ b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-icons8_purple.pdf"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Images.xcassets/icon_purple.imageset/icons8-icons8_purple.pdf b/Example/AssetChecker/Images.xcassets/icon_purple.imageset/icons8-icons8_purple.pdf
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diff --git a/Example/AssetChecker/Resources/Media.xcassets/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json
new file mode 100644
index 0000000..86cd985
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/Contents.json
@@ -0,0 +1,12 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-icons8_blue.pdf"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/icons8-icons8_blue.pdf b/Example/AssetChecker/Resources/Media.xcassets/icon_blue.imageset/icons8-icons8_blue.pdf
new file mode 100644
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diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json
new file mode 100644
index 0000000..234dcea
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-48.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-96.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-144.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-144.png b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-144.png
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diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-48.png b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-48.png
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diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-96.png b/Example/AssetChecker/Resources/Media.xcassets/icon_red.imageset/icons8-96.png
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literal 0
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From f650c0d67c1cf4daa03a236d87d33f5225f1a799 Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joseph.elliott@daresay.co>
Date: Thu, 6 Sep 2018 17:28:04 +0200
Subject: [PATCH 3/8] Update file references.

---
 Classes/main.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Classes/main.swift b/Classes/main.swift
index abfca5a..b6d1d0d 100755
--- a/Classes/main.swift
+++ b/Classes/main.swift
@@ -113,7 +113,7 @@ let usedAssetNames = Set(usedAssets.keys + ignoredUnusedNames)
 // Generate Warnings for Unused Assets
 // (name, catalog)
 let unused = availableAssets.filter({ (asset, catalog) -> Bool in !usedAssetNames.contains(asset) })
-unused.forEach { print("\($0):: warning: [Asset Unused] \($0) in \($1)") }
+unused.forEach { print("\($1):: warning: [Asset Unused] \($0)") }
 // unused asset <name> found in <catalog>
 
 // Generate Error for broken Assets
@@ -122,7 +122,7 @@ let broken = usedAssets.filter { (assetName, references) -> Bool in
     !availableAssetNames.contains(assetName)
 }
 
-broken.forEach { print("\($0):: error: [Asset Missing] \($0) found in files \($1)") }
+broken.forEach { print("\($1.first ?? $0):: error: [Asset Missing] \($0)") }
 // asset <name> used in file <filename> wasn't found!
 
 if broken.count > 0 {

From e2b6d76ffadaf9bd50c8d46212177bff92bf6e48 Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joseph.elliott@daresay.co>
Date: Fri, 7 Sep 2018 08:49:15 +0200
Subject: [PATCH 4/8] Add more tests for assets within codebase, refactor
 script code and clean up.

---
 Classes/main.swift                            | 103 ++++++++++--------
 .../AssetChecker.xcodeproj/project.pbxproj    |   4 +-
 .../AssetChecker/Base.lproj/LaunchScreen.xib  |  30 ++++-
 .../AssetChecker/Base.lproj/Main.storyboard   |  23 ++--
 .../icon_orange.imageset/Contents.json        |  23 ++++
 .../icon_orange.imageset/icons8-144.png       | Bin 0 -> 1963 bytes
 .../icon_orange.imageset/icons8-49.png        | Bin 0 -> 664 bytes
 .../icon_orange.imageset/icons8-96.png        | Bin 0 -> 1287 bytes
 Example/AssetChecker/ViewController.swift     |   8 +-
 9 files changed, 126 insertions(+), 65 deletions(-)
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-144.png
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-49.png
 create mode 100644 Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-96.png

diff --git a/Classes/main.swift b/Classes/main.swift
index 767d37f..44096d4 100755
--- a/Classes/main.swift
+++ b/Classes/main.swift
@@ -6,12 +6,28 @@ import Foundation
 var sourcePathOption:String? = nil
 let ignoredUnusedNames = [String]()
 
-for (index, arg) in CommandLine.arguments.enumerated() {
-    switch index {
-    case 1:
-        sourcePathOption = arg
-    default:
-        break
+/* Put here the asset generating false positives,
+ For instance whne you build asset names at runtime
+let ignoredUnusedNames = [
+    "IconArticle",
+    "IconMedia",
+    "voteEN",
+    "voteES",
+    "voteFR"
+]
+*/
+
+// MARK : - End Of Configurable Section
+
+/// Attempt to fetch source path from run script arguments
+if sourcePathOption == nil {
+    for (index, arg) in CommandLine.arguments.enumerated() {
+        switch index {
+        case 1:
+            sourcePathOption = arg
+        default:
+            break
+        }
     }
 }
 
@@ -20,7 +36,7 @@ guard let sourcePath = sourcePathOption else {
     exit(0)
 }
 
-func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [String] {
+private func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [String] {
     var elements = [String]()
     while let e = enumerator?.nextObject() as? String {
         elements.append(e)
@@ -28,14 +44,13 @@ func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?) -> [St
     return elements
 }
 
-// MARK: - Search for asset catalogs
+/// Search for asset catalogs within the source path
 let assetCatalogPaths = elementsInEnumerator(FileManager.default.enumerator(atPath: sourcePath)).filter { $0.hasSuffix(".xcassets") }
 
 print("Searching sources in \(sourcePath) for assets in \(assetCatalogPaths)")
 
-// MARK: - List Assets
-
-func listAssets() -> [(asset: String, catalog: String)] {
+/// List assets in found asset catalogs
+private func listAssets() -> [(asset: String, catalog: String)] {
     
     return assetCatalogPaths.flatMap { (catalog) -> [(asset: String, catalog: String)] in
         
@@ -49,39 +64,39 @@ func listAssets() -> [(asset: String, catalog: String)] {
     }
 }
 
-
-// MARK: - List Used Assets in the codebase
-
-func localizedStrings(inStringFile: String) -> [String] {
-    var localizedStrings = [String]()
-    let namePattern = "([\\w-]+)"
-    let patterns = [
-        "#imageLiteral\\(resourceName: \"\(namePattern)\"\\)", // Image Literal
-        "UIImage\\(named:\\s*\"\(namePattern)\"\\)", // Default UIImage call (Swift)
-        "UIImage imageNamed:\\s*\\@\"\(namePattern)\"", // Default UIImage call 
-        "\\<image name=\"\(namePattern)\".*", // Storyboard resources
-        "R.image.\(namePattern)\\(\\)" //R.swift support
-    ]
-    for p in patterns {
-        let regex = try? NSRegularExpression(pattern: p, options: [])
-        let range = NSRange(location:0, length:(inStringFile as NSString).length)
-        regex?.enumerateMatches(in: inStringFile,options: [], range: range) { result, _, _ in
-            if let r = result {
-                let value = (inStringFile as NSString).substring(with:r.range(at: 1))
-                localizedStrings.append(value)
-            }
-        }
-    }
-    return localizedStrings
-}
-
-func listUsedAssetLiterals() -> [String: [String]]  {
+/// List Assets used in the codebase
+private func listUsedAssetLiterals() -> [String: [String]]  {
     let enumerator = FileManager.default.enumerator(atPath:sourcePath)
     
     var assetUsageMap: [String: [String]] = [:]
     
+    // Only Swift and Obj-C files
     let files = elementsInEnumerator(enumerator)
-        .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }    // Only Swift and Obj-C files
+        .filter { $0.hasSuffix(".m") || $0.hasSuffix(".swift") || $0.hasSuffix(".xib") || $0.hasSuffix(".storyboard") }
+    
+    /// Find sources of assets within the contents of a file
+    func localizedStrings(inStringFile: String) -> [String] {
+        var assetStringReferences = [String]()
+        let namePattern = "([\\w-]+)"
+        let patterns = [
+            "#imageLiteral\\(resourceName: \"\(namePattern)\"\\)", // Image Literal
+            "UIImage\\(named:\\s*\"\(namePattern)\"\\)", // Default UIImage call (Swift)
+            "UIImage imageNamed:\\s*\\@\"\(namePattern)\"", // Default UIImage call
+            "\\<image name=\"\(namePattern)\".*", // Storyboard resources
+            "R.image.\(namePattern)\\(\\)" //R.swift support
+        ]
+        for p in patterns {
+            let regex = try? NSRegularExpression(pattern: p, options: [])
+            let range = NSRange(location:0, length:(inStringFile as NSString).length)
+            regex?.enumerateMatches(in: inStringFile,options: [], range: range) { result, _, _ in
+                if let r = result {
+                    let value = (inStringFile as NSString).substring(with:r.range(at: 1))
+                    assetStringReferences.append(value)
+                }
+            }
+        }
+        return assetStringReferences
+    }
     
     for filename in files {
         // Build file paths
@@ -111,21 +126,13 @@ let availableAssetNames = Set(availableAssets.map{$0.asset} )
 let usedAssets = listUsedAssetLiterals()
 let usedAssetNames = Set(usedAssets.keys + ignoredUnusedNames)
 
-
 // Generate Warnings for Unused Assets
-// (name, catalog)
 let unused = availableAssets.filter({ (asset, catalog) -> Bool in !usedAssetNames.contains(asset) })
 unused.forEach { print("\($1):: warning: [Asset Unused] \($0)") }
-// unused asset <name> found in <catalog>
 
 // Generate Error for broken Assets
-// (name, [fileReferences])
-let broken = usedAssets.filter { (assetName, references) -> Bool in
-    !availableAssetNames.contains(assetName)
-}
-
+let broken = usedAssets.filter { (assetName, references) -> Bool in !availableAssetNames.contains(assetName) }
 broken.forEach { print("\($1.first ?? $0):: error: [Asset Missing] \($0)") }
-// asset <name> used in file <filename> wasn't found!
 
 if broken.count > 0 {
     exit(1)
diff --git a/Example/AssetChecker.xcodeproj/project.pbxproj b/Example/AssetChecker.xcodeproj/project.pbxproj
index e9c6023..3ce2536 100644
--- a/Example/AssetChecker.xcodeproj/project.pbxproj
+++ b/Example/AssetChecker.xcodeproj/project.pbxproj
@@ -105,12 +105,12 @@
 		607FACD21AFB9204008FA782 /* Example for AssetChecker */ = {
 			isa = PBXGroup;
 			children = (
-				5D7631B2214170A70017A471 /* Resources */,
 				607FACD51AFB9204008FA782 /* AppDelegate.swift */,
 				607FACD71AFB9204008FA782 /* ViewController.swift */,
 				607FACD91AFB9204008FA782 /* Main.storyboard */,
 				607FACDC1AFB9204008FA782 /* Images.xcassets */,
 				607FACDE1AFB9204008FA782 /* LaunchScreen.xib */,
+				5D7631B2214170A70017A471 /* Resources */,
 				607FACD31AFB9204008FA782 /* Supporting Files */,
 			);
 			name = "Example for AssetChecker";
@@ -375,7 +375,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "${PODS_ROOT}/AssetChecker/run --source ${SRCROOT}\n";
+			shellScript = "${PODS_ROOT}/AssetChecker/run";
 		};
 		CD3F94CDB64297E52FBE5D36 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
diff --git a/Example/AssetChecker/Base.lproj/LaunchScreen.xib b/Example/AssetChecker/Base.lproj/LaunchScreen.xib
index aeef3c1..5c995be 100644
--- a/Example/AssetChecker/Base.lproj/LaunchScreen.xib
+++ b/Example/AssetChecker/Base.lproj/LaunchScreen.xib
@@ -1,11 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14313.13.2" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.9"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
+        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
@@ -15,31 +16,50 @@
             <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
             <subviews>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" misplaced="YES" text="  Copyright (c) 2015 CocoaPods. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
-                    <rect key="frame" x="20" y="439" width="441" height="21"/>
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 CocoaPods. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
+                    <rect key="frame" x="20" y="271" width="441" height="189"/>
                     <fontDescription key="fontDescription" type="system" pointSize="17"/>
                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                     <nil key="highlightedColor"/>
                 </label>
-                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" misplaced="YES" text="AssetChecker" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
+                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="AssetChecker" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
                     <rect key="frame" x="20" y="140" width="441" height="43"/>
                     <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
                     <nil key="highlightedColor"/>
                 </label>
+                <stackView opaque="NO" contentMode="scaleToFill" distribution="fillEqually" translatesAutoresizingMaskIntoConstraints="NO" id="mSC-2P-akU">
+                    <rect key="frame" x="20" y="203" width="440" height="48"/>
+                    <subviews>
+                        <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_blue" translatesAutoresizingMaskIntoConstraints="NO" id="VQY-c8-uEh">
+                            <rect key="frame" x="0.0" y="0.0" width="220" height="48"/>
+                        </imageView>
+                        <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_mauve" translatesAutoresizingMaskIntoConstraints="NO" id="jab-8v-CGz">
+                            <rect key="frame" x="220" y="0.0" width="220" height="48"/>
+                        </imageView>
+                    </subviews>
+                </stackView>
             </subviews>
             <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
             <constraints>
+                <constraint firstItem="mSC-2P-akU" firstAttribute="top" secondItem="kId-c2-rCX" secondAttribute="bottom" constant="20" id="0AP-x0-HPz"/>
                 <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
+                <constraint firstAttribute="trailing" secondItem="mSC-2P-akU" secondAttribute="trailing" constant="20" id="D16-TG-81v"/>
                 <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
                 <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
                 <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
                 <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
                 <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
+                <constraint firstItem="mSC-2P-akU" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" id="o83-dZ-Eds"/>
+                <constraint firstItem="8ie-xW-0ye" firstAttribute="top" secondItem="mSC-2P-akU" secondAttribute="bottom" constant="20" id="rNM-bb-e4i"/>
             </constraints>
             <nil key="simulatedStatusBarMetrics"/>
             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
             <point key="canvasLocation" x="548" y="455"/>
         </view>
     </objects>
+    <resources>
+        <image name="icon_blue" width="48" height="48"/>
+        <image name="icon_mauve" width="16" height="16"/>
+    </resources>
 </document>
diff --git a/Example/AssetChecker/Base.lproj/Main.storyboard b/Example/AssetChecker/Base.lproj/Main.storyboard
index 61e6f8f..8e75148 100644
--- a/Example/AssetChecker/Base.lproj/Main.storyboard
+++ b/Example/AssetChecker/Base.lproj/Main.storyboard
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14313.13.2" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="vXZ-lx-hvc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="vXZ-lx-hvc">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.9"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -21,17 +21,17 @@
                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <subviews>
-                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" translatesAutoresizingMaskIntoConstraints="NO" id="dcL-fK-p7R">
+                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" distribution="fillEqually" translatesAutoresizingMaskIntoConstraints="NO" id="dcL-fK-p7R">
                                 <rect key="frame" x="30" y="50" width="315" height="587"/>
                                 <subviews>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" image="icon_green" translatesAutoresizingMaskIntoConstraints="NO" id="vXm-mP-bVU">
-                                        <rect key="frame" x="0.0" y="0.0" width="315" height="523"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_green" translatesAutoresizingMaskIntoConstraints="NO" id="vXm-mP-bVU">
+                                        <rect key="frame" x="0.0" y="0.0" width="315" height="195.5"/>
                                     </imageView>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" image="icon_blue" translatesAutoresizingMaskIntoConstraints="NO" id="vDD-em-TGY">
-                                        <rect key="frame" x="0.0" y="523" width="315" height="48"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_blue" translatesAutoresizingMaskIntoConstraints="NO" id="vDD-em-TGY">
+                                        <rect key="frame" x="0.0" y="195.5" width="315" height="196"/>
                                     </imageView>
-                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" image="icon_turquoise" translatesAutoresizingMaskIntoConstraints="NO" id="ulC-Sy-M6n">
-                                        <rect key="frame" x="0.0" y="571" width="315" height="16"/>
+                                    <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="icon_turquoise" translatesAutoresizingMaskIntoConstraints="NO" id="ulC-Sy-M6n">
+                                        <rect key="frame" x="0.0" y="391.5" width="315" height="195.5"/>
                                     </imageView>
                                 </subviews>
                             </stackView>
@@ -44,6 +44,11 @@
                             <constraint firstItem="dcL-fK-p7R" firstAttribute="top" secondItem="jyV-Pf-zRb" secondAttribute="bottom" constant="30" id="hvn-lq-suh"/>
                         </constraints>
                     </view>
+                    <connections>
+                        <outlet property="imageViewOne" destination="vXm-mP-bVU" id="YIv-E6-U3L"/>
+                        <outlet property="imageViewThree" destination="ulC-Sy-M6n" id="ezi-jN-g87"/>
+                        <outlet property="imageViewTwo" destination="vDD-em-TGY" id="HyR-HH-v5r"/>
+                    </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="x5A-6p-PRh" sceneMemberID="firstResponder"/>
             </objects>
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json
new file mode 100644
index 0000000..546f6df
--- /dev/null
+++ b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-49.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-96.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "icons8-144.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-144.png b/Example/AssetChecker/Resources/Media.xcassets/icon_orange.imageset/icons8-144.png
new file mode 100644
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diff --git a/Example/AssetChecker/ViewController.swift b/Example/AssetChecker/ViewController.swift
index e92141b..9e1ba68 100644
--- a/Example/AssetChecker/ViewController.swift
+++ b/Example/AssetChecker/ViewController.swift
@@ -10,15 +10,21 @@ import UIKit
 
 class ViewController: UIViewController {
 
+    @IBOutlet weak var imageViewOne: UIImageView!
+    @IBOutlet weak var imageViewTwo: UIImageView!
+    @IBOutlet weak var imageViewThree: UIImageView!
+    
     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
+        
+        imageViewOne.image = UIImage(named: "icon_orange")
+        imageViewTwo.image = UIImage(named: "icon_vermillion")
     }
 
     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }
-
 }
 

From a7266a68c4cc733ccebef735b8c50b212d0f7dfc Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joseph.elliott@daresay.co>
Date: Fri, 7 Sep 2018 08:59:29 +0200
Subject: [PATCH 5/8] Update readme

---
 README.md | 37 +++++++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 14 deletions(-)

diff --git a/README.md b/README.md
index 611f569..fafd849 100644
--- a/README.md
+++ b/README.md
@@ -18,20 +18,31 @@ Because **Image Assets** files are not safe, if an asset is ever deleted, nothin
 
 AssetChecker is part of [freshOS](http://freshos.org) iOS toolset. Try it in an example App ! <a class="github-button" href="https://github.com/freshOS/StarterProject/archive/master.zip" data-icon="octicon-cloud-download" data-style="mega" aria-label="Download freshOS/StarterProject on GitHub">Download Starter Project</a>
 
-## How
-By using a **script** running automatically, you have a **safety net** that makes using Asset Catalog a breeze.
-
 ## What
+By using a **script** running automatically, you have a **safety net** that makes using Asset Catalog a breeze.  
 
-Automatically (On build)
-  - Raises Errors for **Missing Assets**
-  - Raises warnings for **Unused Assets**
-
+## How
+The script will automatically find the asset catalogs ( `.xcassets`) in your project and serarch your source code to determine if there are errors with them.  It searches for the following types of files:
+- xibs
+- storyboards
+- swift files
+- Obj-C (.m) files
+
+For these types of references:
+- `#imageLiteral(resourceName: )`
+- `UIImage(named: )` (swift)
+- `[UIImage imageNamed: ]` (ObjC)
+- `R.image.name()` (supports [R.Swift](https://github.com/mac-cain13/R.swift))
+
+Then the script will automatically (On build)
+  - Raise Errors for **Missing Assets**
+  - Raise warnings for **Unused Assets**
+ 
 ## Installation
 
 Installation available via Cocoapods.  Add the following to your Podfile:
 ```shell
-pod 'AssetChecker', :git => 'https://github.com/joeboyscout04/AssetChecker.git', :branch => 'pods'
+pod 'AssetChecker'
 ```
 Or copy the script into your project.
 
@@ -39,27 +50,25 @@ Add the following `Run Script` in XCode, this will run the script at every build
 If you installed via Cocoapods, you can use the following script:
 
 ```shell
-${PODS_ROOT}/AssetChecker/run --catalog ${SRCROOT}/Resource/Images.xcassets
+${PODS_ROOT}/AssetChecker/run
 ```
 
 with arguments:
 ```
---catalog Absolute path to your Asset catalog (required)
---source Absolute path to your source directory.  Defaults to $SRCROOT
+--source (optional) Absolute path to your source directory.  Defaults to $SRCROOT
 ```
 
 If you didn't use Cocoapods, use the path of where you copied AssetChecker script:
 
 ```shell
-${SRCROOT}/{PATH_TO_THE_SCRIPT}/AssetChecker.swift ${SRCROOT}/Sources ${SRCROOT}/Resources/Images.xcassets
+${SRCROOT}/{PATH_TO_THE_SCRIPT}/AssetChecker.swift ${SRCROOT}/Sources
 ```
-In this example your source files are located in `/Sources` and your Asset catalog is in `/Resources/Images.xcassets`.
+In this example your source files are located in `/Sources`.
 
 And configure top section of the script :
 ```swift
 // Configure me \o/
 let sourcePath = "/Sources"
-let assetCatalogPath = "/Resources/Assets.xcassets"
 let ignoredUnusedNames = [String]()
 ```
 Run and Enjoy \o/

From c72dae7f7152da094d3b823355cee975655190f3 Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joseph.elliott@daresay.co>
Date: Fri, 7 Sep 2018 10:51:53 +0200
Subject: [PATCH 6/8] Bump version number

---
 AssetChecker.podspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/AssetChecker.podspec b/AssetChecker.podspec
index ec7af47..69df738 100644
--- a/AssetChecker.podspec
+++ b/AssetChecker.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'AssetChecker'
-  s.version          = '0.2.1'
+  s.version          = '0.3.0'
   s.summary          = 'Sanitizes your Assets.xcassets files'
   s.description      = "AssetChecker is a tiny run script that keeps your Assets.xcassets files clean and emits warnings when something is suspicious."
   s.homepage         = 'https://github.com/freshos/AssetChecker'

From 48f6326235e926cb4b0812fa21b8c652df35a7eb Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joeboyscout04@gmail.com>
Date: Wed, 20 Mar 2019 12:50:53 +0100
Subject: [PATCH 7/8] Improve command line argument handling, added back ignore
 option.

---
 Classes/main.swift                            | 51 +++++++++++++++----
 .../AssetChecker.xcodeproj/project.pbxproj    |  2 +-
 run                                           |  7 ++-
 3 files changed, 47 insertions(+), 13 deletions(-)

diff --git a/Classes/main.swift b/Classes/main.swift
index 44096d4..6f9f424 100755
--- a/Classes/main.swift
+++ b/Classes/main.swift
@@ -3,8 +3,9 @@
 import Foundation
 
 // Configure me \o/
-var sourcePathOption:String? = nil
-let ignoredUnusedNames = [String]()
+var sourcePathOption:String?
+var ignoredUnusedNames = [String]()
+var catalogPath: String?
 
 /* Put here the asset generating false positives,
  For instance whne you build asset names at runtime
@@ -20,14 +21,34 @@ let ignoredUnusedNames = [
 // MARK : - End Of Configurable Section
 
 /// Attempt to fetch source path from run script arguments
-if sourcePathOption == nil {
-    for (index, arg) in CommandLine.arguments.enumerated() {
-        switch index {
-        case 1:
-            sourcePathOption = arg
-        default:
-            break
+// command line arguments passed as "source:/path/to"
+struct CommandLineArg {
+    let arg: String
+    let value: String?
+}
+
+let commandLineArguments = CommandLine.arguments.map { clArg -> CommandLineArg in
+    let splitArgs = clArg.split(separator: ":")
+    let value = splitArgs.indices.contains(1) ? String(splitArgs[1]) : nil
+    return CommandLineArg(arg: String(splitArgs[0]), value: value)
+}
+
+for arg in commandLineArguments {
+    switch arg.arg {
+    case "source":
+        if let sourcePath = arg.value, sourcePathOption == nil {
+            sourcePathOption = sourcePath
         }
+    case "catalog":
+        if let catelog = arg.value, catalogPath == nil {
+            catalogPath = catelog
+        }
+    case "ignore":
+        if let ignoreAssetsNames = arg.value, ignoredUnusedNames.isEmpty {
+            ignoredUnusedNames = ignoreAssetsNames.split(separator: ",").map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+        }
+    default:
+        break
     }
 }
 
@@ -45,7 +66,15 @@ private func elementsInEnumerator(_ enumerator: FileManager.DirectoryEnumerator?
 }
 
 /// Search for asset catalogs within the source path
-let assetCatalogPaths = elementsInEnumerator(FileManager.default.enumerator(atPath: sourcePath)).filter { $0.hasSuffix(".xcassets") }
+
+let assetCatalogPaths: [String] = {
+    if let providedCatalog = catalogPath {
+        return [providedCatalog]
+    } else {
+        // detect automatically
+        return elementsInEnumerator(FileManager.default.enumerator(atPath: sourcePath)).filter { $0.hasSuffix(".xcassets") }
+    }
+}()
 
 print("Searching sources in \(sourcePath) for assets in \(assetCatalogPaths)")
 
@@ -127,7 +156,7 @@ let usedAssets = listUsedAssetLiterals()
 let usedAssetNames = Set(usedAssets.keys + ignoredUnusedNames)
 
 // Generate Warnings for Unused Assets
-let unused = availableAssets.filter({ (asset, catalog) -> Bool in !usedAssetNames.contains(asset) })
+let unused = availableAssets.filter({ (asset, catalog) -> Bool in !usedAssetNames.contains(asset) && !ignoredUnusedNames.contains(asset) })
 unused.forEach { print("\($1):: warning: [Asset Unused] \($0)") }
 
 // Generate Error for broken Assets
diff --git a/Example/AssetChecker.xcodeproj/project.pbxproj b/Example/AssetChecker.xcodeproj/project.pbxproj
index 3ce2536..53ba587 100644
--- a/Example/AssetChecker.xcodeproj/project.pbxproj
+++ b/Example/AssetChecker.xcodeproj/project.pbxproj
@@ -375,7 +375,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "${PODS_ROOT}/AssetChecker/run";
+			shellScript = "${PODS_ROOT}/AssetChecker/run --ignore \"icon_red\"\n";
 		};
 		CD3F94CDB64297E52FBE5D36 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
diff --git a/run b/run
index d056885..b05555d 100755
--- a/run
+++ b/run
@@ -8,6 +8,7 @@ swiftFile="${DIR}/Classes/main.swift"
 
 SOURCE=$SRCROOT
 CATALOG=""
+IGNORE=""
 
 while [[ $# > 0 ]]
 do
@@ -22,6 +23,10 @@ case $key in
     CATALOG="$2"
     shift # past argument
     ;;
+    -i|--ignore)
+    IGNORE="$2"
+    shift # past argument
+    ;;
     *)
 
     # unknown option
@@ -30,6 +35,6 @@ esac
 shift # past argument or value
 done
 
-cmd="$swiftFile $SOURCE $CATALOG"
+cmd="$swiftFile source:$SOURCE catalog:$CATALOG ignore:$IGNORE"
 echo $cmd
 $cmd

From 705eed80aa8e19707a9d5a31fc0028f77ae409c2 Mon Sep 17 00:00:00 2001
From: Joseph Elliott <joeboyscout04@gmail.com>
Date: Wed, 20 Mar 2019 13:03:06 +0100
Subject: [PATCH 8/8] Update version

---
 AssetChecker.podspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/AssetChecker.podspec b/AssetChecker.podspec
index 69df738..e418cf0 100644
--- a/AssetChecker.podspec
+++ b/AssetChecker.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'AssetChecker'
-  s.version          = '0.3.0'
+  s.version          = '0.3.1'
   s.summary          = 'Sanitizes your Assets.xcassets files'
   s.description      = "AssetChecker is a tiny run script that keeps your Assets.xcassets files clean and emits warnings when something is suspicious."
   s.homepage         = 'https://github.com/freshos/AssetChecker'