Resolving relative paths with custom project destination

CHANGELOG.md

@@ -11,6 +11,7 @@
 - Add `rcproject` files to sources build phase instead of resources [#669](https://github.com/yonaskolb/XcodeGen/pull/669) @Qusic
 - Prefer default configuration names for generated schemes [#673](https://github.com/yonaskolb/XcodeGen/pull/673) @giginet
 - Fixed some resource files being placed to "Recovered References" group [#679](https://github.com/yonaskolb/XcodeGen/pull/679) @nivanchikov
+- Fixed resolving relative paths with custom project destination [#681](https://github.com/yonaskolb/XcodeGen/pull/681) @giginet
 
 #### Internal
 

Sources/XcodeGenCLI/GenerateCommand.swift

@@ -125,7 +125,7 @@ class GenerateCommand: Command {
         let xcodeProject: XcodeProj
         do {
             let projectGenerator = ProjectGenerator(project: project)
-            xcodeProject = try projectGenerator.generateXcodeProject()
+            xcodeProject = try projectGenerator.generateXcodeProject(to: projectDirectory)
         } catch {
             throw GenerationError.generationError(error)
         }

Sources/XcodeGenKit/PBXProjGenerator.swift

@@ -24,11 +24,13 @@ public class PBXProjGenerator {
 
     var generated = false
 
-    public init(project: Project) {
+    public init(project: Project, projectDirectory: Path? = nil) {
         self.project = project
         carthageResolver = CarthageDependencyResolver(project: project)
         pbxProj = PBXProj(rootObject: nil, objectVersion: project.objectVersion)
-        sourceGenerator = SourceGenerator(project: project, pbxProj: pbxProj)
+        sourceGenerator = SourceGenerator(project: project,
+                                          pbxProj: pbxProj,
+                                          projectDirectory: projectDirectory)
     }
 
     @discardableResult

Sources/XcodeGenKit/ProjectGenerator.swift

@@ -13,10 +13,11 @@ public class ProjectGenerator {
         self.project = project
     }
 
-    public func generateXcodeProject() throws -> XcodeProj {
+    public func generateXcodeProject(to projectDirectory: Path? = nil) throws -> XcodeProj {
 
         // generate PBXProj
-        let pbxProjGenerator = PBXProjGenerator(project: project)
+        let pbxProjGenerator = PBXProjGenerator(project: project,
+                                                projectDirectory: projectDirectory)
         let pbxProj = try pbxProjGenerator.generate()
 
         // generate Schemes

Sources/XcodeGenKit/SourceGenerator.swift

@@ -13,6 +13,7 @@ struct SourceFile {
 class SourceGenerator {
 
     var rootGroups: Set<PBXFileElement> = []
+    private let projectDirectory: Path?
     private var fileReferencesByPath: [String: PBXFileElement] = [:]
     private var groupsByPath: [Path: PBXGroup] = [:]
     private var variantGroupsByPath: [Path: PBXVariantGroup] = [:]
@@ -30,9 +31,18 @@ class SourceGenerator {
 
     private(set) var knownRegions: Set<String> = []
 
-    init(project: Project, pbxProj: PBXProj) {
+    init(project: Project, pbxProj: PBXProj, projectDirectory: Path?) {
         self.project = project
         self.pbxProj = pbxProj
+        self.projectDirectory = projectDirectory
+    }
+
+    private func resolveGroupPath(_ path: Path, isTopLevelGroup: Bool) -> String {
+        if isTopLevelGroup, let relativePath = try? path.relativePath(from: projectDirectory ?? project.basePath).string {
+            return relativePath
+        } else {
+            return path.lastComponent
+        }
     }
 
     @discardableResult
@@ -286,9 +296,8 @@ class SourceGenerator {
             let isTopLevelGroup = (isBaseGroup && !createIntermediateGroups) || isRootPath
 
             let groupName = name ?? path.lastComponent
-            let groupPath = isTopLevelGroup ?
-                ((try? path.relativePath(from: project.basePath)) ?? path).string :
-                path.lastComponent
+            let groupPath = resolveGroupPath(path, isTopLevelGroup: isTopLevelGroup)
+
             let group = PBXGroup(
                 children: children,
                 sourceTree: .group,

Tests/XcodeGenKitTests/ProjectGeneratorTests.swift

@@ -1004,4 +1004,38 @@ class ProjectGeneratorTests: XCTestCase {
             }
         }
     }
+
+    func testGenerateXcodeProjectWithDestination() throws {
+        let groupName = "App_iOS"
+        let sourceDirectory = fixturePath + "TestProject" + groupName
+        let frameworkWithSources = Target(
+            name: "MyFramework",
+            type: .framework,
+            platform: .iOS,
+            sources: [TargetSource(path: sourceDirectory.string)]
+        )
+
+        describe("generateXcodeProject") {
+            $0.context("without projectDirectory") {
+                $0.it("generate groups") {
+                    let project = Project(name: "test", targets: [frameworkWithSources])
+                    let generator = ProjectGenerator(project: project)
+                    let generatedProject = try generator.generateXcodeProject()
+                    let group = generatedProject.pbxproj.groups.first(where: { $0.nameOrPath == groupName })
+                    try expect(group?.path) == "App_iOS"
+                }
+            }
+
+            $0.context("with projectDirectory") {
+                $0.it("generate groups") {
+                    let destinationPath = fixturePath
+                    let project = Project(name: "test", targets: [frameworkWithSources])
+                    let generator = ProjectGenerator(project: project)
+                    let generatedProject = try generator.generateXcodeProject(to: destinationPath)
+                    let group = generatedProject.pbxproj.groups.first(where: { $0.nameOrPath == groupName })
+                    try expect(group?.path) == "TestProject/App_iOS"
+                }
+            }
+        }
+    }
 }