Fix: #126

Sources/Ignite/Extensions/URL-SelectDirectories.swift

@@ -0,0 +1,45 @@
+//
+// URL-selectDirectories.swift
+// Ignite
+// https://www.github.com/twostraws/Ignite
+// See LICENSE for license information.
+//
+
+import Foundation
+
+extension URL {
+    /// Returns URL where to find Assets/Content/Includes and URL where to generate the static web site.
+    /// When building a package, the website is built at the source URL (and both URLs are equal).
+    /// When building a MacOS app, the website is built in a subdirectory of the app's sandbox.
+    /// - Parameter file: path of a Swift source file to find source root directory by scanning path upwards.
+    /// - Returns tupple containing source URL and URL where output is built.
+    public static func selectDirectories(from file: StaticString) throws -> SourceBuildDirectories {
+        var currentURL = URL(filePath: file.description)
+
+        repeat {
+            currentURL = currentURL.deletingLastPathComponent()
+
+            let packageURL = currentURL.appending(path: "Package.swift")
+            if FileManager.default.fileExists(atPath: packageURL.path) {
+                return SourceBuildDirectories(source: packageURL.deletingLastPathComponent(),
+                                              build: packageURL.deletingLastPathComponent())
+            }
+        } while currentURL.path() !=  "/"
+
+        let buildDirectory: String = NSHomeDirectory() // app's home directory for a sandboxed MacOS app
+        if buildDirectory.contains("/Library/Containers/") {
+            let buildDirectoryURL: URL = URL(filePath: buildDirectory)
+            return SourceBuildDirectories(source: buildDirectoryURL,
+                                          build: buildDirectoryURL)
+        }
+
+        throw PublishingError.missingPackageDirectory
+    }
+
+}
+
+/// Provides URL to where to find Assets/Content/Includes input directories and Build output directory
+public struct SourceBuildDirectories {
+    public let source: URL
+    public let build: URL
+}

Sources/Ignite/Publishing/PublishingContext-ResourceLoading.swift

@@ -12,7 +12,7 @@ extension PublishingContext {
     /// - Parameter resource: The file to look for, e.g. "quotes.json"
     /// - Returns: The URL, if the file can be found.
     public func url(forResource resource: String) -> URL? {
-        let fullURL = rootDirectory.appending(path: "Resources/\(resource)")
+        let fullURL = sourceDirectory.appending(path: "Resources/\(resource)")
 
         if FileManager.default.fileExists(atPath: fullURL.path()) {
             return fullURL

Sources/Ignite/Publishing/PublishingContext.swift

@@ -15,7 +15,7 @@ public class PublishingContext {
     public var site: any Site
 
     /// The root directory for the user's website package.
-    var rootDirectory: URL
+    var sourceDirectory: URL
 
     /// The directory containing their custom assets.
     var assetsDirectory: URL
@@ -45,25 +45,6 @@ public class PublishingContext {
     /// control!)
     private(set) var siteMap = [Location]()
 
-    /// Creates a new publishing context for a specific site, setting a root URL.
-    /// - Parameters:
-    ///   - site: The site we're currently publishing.
-    ///   - rootURL: The URL of the root directory, where other key
-    ///   folders are located.
-    ///   - buildDirectoryPath: The path where the artifacts are generated.
-    ///   The default is "Build".
-    init(for site: any Site, rootURL: URL, buildDirectoryPath: String = "Build") throws {
-        self.site = site
-
-        self.rootDirectory = rootURL
-        assetsDirectory = rootDirectory.appending(path: "Assets")
-        contentDirectory = rootDirectory.appending(path: "Content")
-        includesDirectory = rootDirectory.appending(path: "Includes")
-        buildDirectory = rootDirectory.appending(path: buildDirectoryPath)
-
-        try parseContent()
-    }
-
     /// Creates a new publishing context for a specific site, providing the path to
     /// one of the user's file. This then navigates upwards to find the root directory.
     /// - Parameters:
@@ -74,11 +55,13 @@ public class PublishingContext {
     init(for site: any Site, from file: StaticString, buildDirectoryPath: String = "Build") throws {
         self.site = site
 
-        rootDirectory = try URL.selectSiteRootDirectory(from: file)
-        assetsDirectory = rootDirectory.appending(path: "Assets")
-        contentDirectory = rootDirectory.appending(path: "Content")
-        includesDirectory = rootDirectory.appending(path: "Includes")
-        buildDirectory = rootDirectory.appending(path: buildDirectoryPath)
+        let sourceBuildDirectories = try URL.selectDirectories(from: file)
+        sourceDirectory = sourceBuildDirectories.source
+        buildDirectory = sourceBuildDirectories.build.appending(path: buildDirectoryPath)
+
+        assetsDirectory = sourceDirectory.appending(path: "Assets")
+        contentDirectory = sourceDirectory.appending(path: "Content")
+        includesDirectory = sourceDirectory.appending(path: "Includes")
 
         try parseContent()
     }
@@ -179,16 +162,21 @@ public class PublishingContext {
     /// and CSS, icons CSS and fonts if enabled, and syntax highlighters
     /// if enabled.
     func copyResources() throws {
-        let assets = try FileManager.default.contentsOfDirectory(
-            at: assetsDirectory,
-            includingPropertiesForKeys: nil
-        )
-
-        for asset in assets {
-            try FileManager.default.copyItem(
-                at: assetsDirectory.appending(path: asset.lastPathComponent),
-                to: buildDirectory.appending(path: asset.lastPathComponent)
+        do {
+            let assets = try FileManager.default.contentsOfDirectory(
+                at: assetsDirectory,
+                includingPropertiesForKeys: nil
             )
+
+            for asset in assets {
+                try FileManager.default.copyItem(
+                    at: assetsDirectory.appending(path: asset.lastPathComponent),
+                    to: buildDirectory.appending(path: asset.lastPathComponent)
+                )
+            }
+        } catch {
+            print("Could not copy assets from \(assetsDirectory) to \(buildDirectory): \(error).")
+            throw error
         }
 
         if site.useDefaultBootstrapURLs == .localBootstrap {