From 19a14b45838a21c75500313c481e5a05b607a4a7 Mon Sep 17 00:00:00 2001
From: ismailgulek <ismailgulek@users.noreply.github.com>
Date: Mon, 6 Jun 2022 15:02:16 +0300
Subject: [PATCH] Fix Info.plist crash on Mac (#72)

* #71 Use custom template for Info.plist

* Add changelog
---
 ElementX/Sources/Generated/InfoPlist.swift    |   6 +-
 .../runtime-swift5-element-info.stencil       | 109 ++++++++++++++++++
 Tools/SwiftGen/swiftgen-config.yml            |   2 +-
 changelog.d/71.bugfix                         |   1 +
 4 files changed, 112 insertions(+), 6 deletions(-)
 create mode 100644 Tools/SwiftGen/Templates/Plists/runtime-swift5-element-info.stencil
 create mode 100644 changelog.d/71.bugfix

diff --git a/ElementX/Sources/Generated/InfoPlist.swift b/ElementX/Sources/Generated/InfoPlist.swift
index 71a316a80..4c19463b7 100644
--- a/ElementX/Sources/Generated/InfoPlist.swift
+++ b/ElementX/Sources/Generated/InfoPlist.swift
@@ -39,11 +39,7 @@ private struct PlistDocument {
   let data: [String: Any]
 
   init(path: String) {
-    guard let url = BundleToken.bundle.url(forResource: path, withExtension: nil),
-      let data = NSDictionary(contentsOf: url) as? [String: Any] else {
-        fatalError("Unable to load PLIST at path: \(path)")
-    }
-    self.data = data
+    self.data = BundleToken.bundle.infoDictionary ?? [:]
   }
 
   subscript<T>(key: String) -> T {
diff --git a/Tools/SwiftGen/Templates/Plists/runtime-swift5-element-info.stencil b/Tools/SwiftGen/Templates/Plists/runtime-swift5-element-info.stencil
new file mode 100644
index 000000000..551d19cb0
--- /dev/null
+++ b/Tools/SwiftGen/Templates/Plists/runtime-swift5-element-info.stencil
@@ -0,0 +1,109 @@
+// swiftlint:disable all
+// Generated using SwiftGen — https://github.com/SwiftGen/SwiftGen
+
+{% if files %}
+{% set accessModifier %}{% if param.publicAccess %}public{% else %}internal{% endif %}{% endset %}
+import Foundation
+
+// swiftlint:disable superfluous_disable_command
+// swiftlint:disable file_length
+
+// MARK: - Plist Files
+{% macro fileBlock file %}
+  {% call documentBlock file file.document %}
+{% endmacro %}
+{% macro documentBlock file document %}
+  {% set rootType %}{% call typeBlock document.metadata %}{% endset %}
+  {% if document.metadata.type == "Array" %}
+  {{accessModifier}} static let items: {{rootType}} = arrayFromPlist(at: "{% call transformPath file.path %}")
+  {% elif document.metadata.type == "Dictionary" %}
+  private static let _document = PlistDocument(path: "{% call transformPath file.path %}")
+
+  {% for key,value in document.metadata.properties %}
+  {{accessModifier}} {% call propertyBlock key value %}
+  {% endfor %}
+  {% else %}
+  // Unsupported root type `{{rootType}}`
+  {% endif %}
+{% endmacro %}
+{% macro typeBlock metadata %}{% filter removeNewlines:"leading" %}
+  {% if metadata.type == "Array" %}
+    [{% call typeBlock metadata.element %}]
+  {% elif metadata.type == "Dictionary" %}
+    [String: Any]
+  {% else %}
+    {{metadata.type}}
+  {% endif %}
+{% endfilter %}{% endmacro %}
+{% macro propertyBlock key metadata %}{% filter removeNewlines:"leading" %}
+  {% set propertyName %}{{key|swiftIdentifier:"pretty"|lowerFirstWord|escapeReservedKeywords}}{% endset %}
+  {% set propertyType %}{% call typeBlock metadata %}{% endset %}
+  static let {{propertyName}}: {{propertyType}} = _document["{{key}}"]
+{% endfilter %}{% endmacro %}
+{% macro transformPath path %}{% filter removeNewlines %}
+  {% if param.preservePath %}
+    {{path}}
+  {% else %}
+    {{path|basename}}
+  {% endif %}
+{% endfilter %}{% endmacro %}
+
+// swiftlint:disable identifier_name line_length type_body_length
+{{accessModifier}} enum {{param.enumName|default:"PlistFiles"}} {
+  {% if files.count > 1 or param.forceFileNameEnum %}
+  {% for file in files %}
+  {{accessModifier}} enum {{file.name|swiftIdentifier:"pretty"|escapeReservedKeywords}} {
+    {% filter indent:2 %}{% call fileBlock file %}{% endfilter %}
+  }
+  {% endfor %}
+  {% else %}
+  {% call fileBlock files.first %}
+  {% endif %}
+}
+// swiftlint:enable identifier_name line_length type_body_length
+
+// MARK: - Implementation Details
+
+private func arrayFromPlist<T>(at path: String) -> [T] {
+  {% if param.lookupFunction %}
+  guard let url = {{param.lookupFunction}}(path),
+  {% else %}
+  guard let url = {{param.bundle|default:"BundleToken.bundle"}}.url(forResource: path, withExtension: nil),
+  {% endif %}
+    let data = NSArray(contentsOf: url) as? [T] else {
+    fatalError("Unable to load PLIST at path: \(path)")
+  }
+  return data
+}
+
+private struct PlistDocument {
+  let data: [String: Any]
+
+  init(path: String) {
+    self.data = {{param.bundle|default:"BundleToken.bundle"}}.infoDictionary ?? [:]
+  }
+
+  subscript<T>(key: String) -> T {
+    guard let result = data[key] as? T else {
+      fatalError("Property '\(key)' is not of type \(T.self)")
+    }
+    return result
+  }
+}
+{% if not param.bundle and not param.lookupFunction %}
+
+// swiftlint:disable convenience_type
+private final class BundleToken {
+  static let bundle: Bundle = {
+    #if SWIFT_PACKAGE
+    return Bundle.module
+    #else
+    return Bundle(for: BundleToken.self)
+    #endif
+  }()
+}
+// swiftlint:enable convenience_type
+{% endif %}
+{% else %}
+// No files found
+{% endif %}
diff --git a/Tools/SwiftGen/swiftgen-config.yml b/Tools/SwiftGen/swiftgen-config.yml
index 2cf933ff8..c138508cd 100755
--- a/Tools/SwiftGen/swiftgen-config.yml
+++ b/Tools/SwiftGen/swiftgen-config.yml
@@ -27,7 +27,7 @@ strings:
 plist:
   inputs: SupportingFiles/Info.plist
   outputs:
-    templateName: runtime-swift5
+    templatePath: Templates/Plists/runtime-swift5-element-info.stencil
     output: InfoPlist.swift
     params:
       enumName: ElementInfoPlist
diff --git a/changelog.d/71.bugfix b/changelog.d/71.bugfix
new file mode 100644
index 000000000..96461cc6f
--- /dev/null
+++ b/changelog.d/71.bugfix
@@ -0,0 +1 @@
+ElementInfoPlist: Use custom template for Info.plist.