Integrate SwiftFormat using SPM

.github/workflows/main.yml

@@ -17,14 +17,11 @@ jobs:
           key: ${{ runner.os }}-spm-${{ hashFiles('**/Package.resolved') }}
           restore-keys: |
             ${{ runner.os }}-spm-
-      - name: Install SwiftFormat
-        run: brew install gao-sun/core/[email protected]
-        env:
-          HOMEBREW_NO_AUTO_UPDATE: 1
       - name: Install xcpretty
         run: gem install xcpretty
       - name: SwiftFormat # this is necessary since we'll format files in build phase
-        run: swiftformat --lint .
+        run: swift run -c release swiftformat ../ --lint
+        working-directory: ./BuildTools
       - name: Switch Xcode version
         run: sudo xcode-select -s /Applications/Xcode_12.2.app
       - name: Build

.gitignore

@@ -44,3 +44,7 @@ Carthage/Checkouts
 
 Carthage/Build/
 
+# BuildTools
+BuildTools/.build
+BuildTools/.swiftpm
+

BuildTools/Package.resolved

@@ -0,0 +1,16 @@
+{
+  "object": {
+    "pins": [
+      {
+        "package": "SwiftFormat",
+        "repositoryURL": "https://github.com/nicklockwood/SwiftFormat",
+        "state": {
+          "branch": null,
+          "revision": "872e7034f54aeee3f20acf790ecc13e1383f7360",
+          "version": "0.48.4"
+        }
+      }
+    ]
+  },
+  "version": 1
+}

BuildTools/Package.swift

@@ -0,0 +1,11 @@
+// swift-tools-version:5.1
+import PackageDescription
+
+let package = Package(
+    name: "BuildTools",
+    platforms: [.macOS(.v10_11)],
+    dependencies: [
+        .package(url: "https://github.com/nicklockwood/SwiftFormat", from: "0.48.4"),
+    ],
+    targets: [.target(name: "BuildTools", path: "")]
+)

eul.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 52;
+	objectVersion = 54;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -1324,6 +1324,7 @@
 /* Begin PBXShellScriptBuildPhase section */
 		6C9667DA250E3DA200E51ABB /* SwiftFormat */ = {
 			isa = PBXShellScriptBuildPhase;
+			alwaysOutOfDate = 1;
 			buildActionMask = 2147483647;
 			files = (
 			);
@@ -1338,7 +1339,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "if which swiftformat >/dev/null; then\n  swiftformat .\nelse\n  echo \"warning: SwiftFormat not installed, download from https://github.com/nicklockwood/SwiftFormat\"\nfi\n";
+			shellScript = "cd BuildTools\nSDKROOT=macosx\n#swift package update #Uncomment this line temporarily to update the version used to the latest matching your BuildTools/Package.swift file\nswift run -c release swiftformat \"$SRCROOT\"\n";
 		};
 		6CC0798D250CEE96000D7DAC /* Copy LaunchAtLogin helper */ = {
 			isa = PBXShellScriptBuildPhase;