chore(developer): normalize case on input filenames in kmc

Fixes #9611.

Author: mcdurdin

developer/src/kmc/src/commands/build.ts

@@ -108,6 +108,10 @@ async function build(filename: string, parentCallbacks: NodeCompilerCallbacks, o
       return false;
     }
 
+    // Normalize case for the filename and expand the path; this avoids false
+    // positive case mismatches on input filenames and glommed paths
+    filename = fs.realpathSync.native(filename);
+
     let builder = null;
 
     // If infile is a directory, then we treat that as a project and build it

developer/src/kmc/src/commands/buildWindowsPackageInstaller/index.ts

@@ -25,6 +25,10 @@ export async function buildWindowsPackageInstaller(infile: string, options: Wind
     titleImageFilename: options.titleImage
   }
 
+  // Normalize case for the filename and expand the path; this avoids false
+  // positive case mismatches on input filenames and glommed paths
+  infile = fs.realpathSync.native(infile);
+
   const callbacks: CompilerCallbacks = new NodeCompilerCallbacks({...defaultCompilerOptions, ...options});
   const compiler = new WindowsPackageInstallerCompiler(callbacks);