Update NativeMethods.cs (#29)

In Docker (ubuntu/Debian), when .net console app with PDFtoImage is call from another application, workingDirectory is not setup. Assembly.GetExecutingAssembly().Location returns empty string, not null and new Uri(workingDirectory) than failes with exception "empty Uri"
sungaila · Jul 30, 2023 · 65bfca9 · 65bfca9
1 parent ee12352
commit 65bfca9
Showing 1 changed file with 15 additions and 12 deletions.
diff --git a/src/PDFtoImage/PdfiumViewer/NativeMethods.cs b/src/PDFtoImage/PdfiumViewer/NativeMethods.cs
@@ -12,20 +12,23 @@ static NativeMethods()
         {
             // Load the platform dependent Pdfium.dll if it exist.
 #if NET7_0_OR_GREATER
-            var workingDirectory =
-                Assembly.GetExecutingAssembly().Location
-                ?? Environment.ProcessPath!
-                ?? AppContext.BaseDirectory;
+            string workingDirectory = Assembly.GetExecutingAssembly().Location;
+            if (string.IsNullOrWhiteSpace(workingDirectory))
+                workingDirectory = Environment.ProcessPath!;
+            if (string.IsNullOrWhiteSpace(workingDirectory))
+                workingDirectory = AppContext.BaseDirectory;
 #elif NET6_0_OR_GREATER
-            var workingDirectory =
-                Assembly.GetExecutingAssembly().GetName(false).CodeBase
-                ?? Environment.ProcessPath!
-                ?? AppContext.BaseDirectory;
+            var workingDirectory = Assembly.GetExecutingAssembly().GetName(false).CodeBase;
+            if (string.IsNullOrWhiteSpace(workingDirectory))
+                workingDirectory = Environment.ProcessPath!;
+            if (string.IsNullOrWhiteSpace(workingDirectory))
+                workingDirectory = AppContext.BaseDirectory;
 #else
-            var workingDirectory =
-                Assembly.GetExecutingAssembly().GetName(false).CodeBase
-                ?? Process.GetCurrentProcess().MainModule!.FileName!
-                ?? AppContext.BaseDirectory;
+            var workingDirectory =Assembly.GetExecutingAssembly().GetName(false).CodeBase;
+            if (string.IsNullOrWhiteSpace(workingDirectory))
+                workingDirectory =  Process.GetCurrentProcess().MainModule!.FileName!;
+            if (string.IsNullOrWhiteSpace(workingDirectory))
+                workingDirectory = AppContext.BaseDirectory;
 #endif
 
             LoadNativeLibrary(Path.GetDirectoryName(new Uri(workingDirectory).LocalPath)!);