Read generator configuration from file

WebsiteGenerator/Files/Configuration.swift

@@ -1,6 +1,6 @@
 import Foundation
 
-struct Configuration {
+struct Configuration: Codable {
 
     let pageImageWidth: Int
 

WebsiteGenerator/main.swift

@@ -1,11 +1,16 @@
 import Foundation
 
 
-let configuration = Configuration(
-    pageImageWidth: <#T##Int#>,
-    minifyCSSandJS: <#T##Bool#>,
-    contentPath: <#T##String#>,
-    outputPath: <#T##String#>)
+let configUrl = URL(fileURLWithPath: "/Users/ch/Projects/MakerSpace/CHGenerator/config.json")
+
+let configuration: Configuration
+do {
+    let data = try Data(contentsOf: configUrl)
+    configuration = try JSONDecoder().decode(from: data)
+} catch {
+    print("Failed to read configuration: \(error)")
+    exit(1)
+}
 
 let log = ValidationLog()
 let files = FileSystem(
@@ -20,8 +25,8 @@ do {
     let siteGenerator = try SiteGenerator()
     siteGenerator.generate(site: siteData)
 } catch {
-    print(error)
-    exit(0)
+    print("Failed to generate website: \(error)")
+    exit(2)
 }
 
 files.printGeneratedPages()
@@ -31,4 +36,5 @@ files.printDraftPages()
 files.createImages()
 print("Images generated")
 files.copyRequiredFiles()
+files.printExternalFiles()
 files.writeHashes()

config_example.json

@@ -0,0 +1,6 @@
+{
+    "pageImageWidth" : 748,
+    "minifyCSSandJS" : true,
+    "contentPath" : "/path/to/content/folder",
+    "outputPath" : "/path/to/output/folder")
+}