fix: support symlinks when commit signing (#3359)

dist/index.js

@@ -1781,7 +1781,13 @@ function readFile(path) {
     return fs.readFileSync(path, 'utf-8');
 }
 function readFileBase64(pathParts) {
-    return fs.readFileSync(path.resolve(...pathParts)).toString('base64');
+    const resolvedPath = path.resolve(...pathParts);
+    if (fs.lstatSync(resolvedPath).isSymbolicLink()) {
+        return fs
+            .readlinkSync(resolvedPath, { encoding: 'buffer' })
+            .toString('base64');
+    }
+    return fs.readFileSync(resolvedPath).toString('base64');
 }
 /* eslint-disable  @typescript-eslint/no-explicit-any */
 function hasErrorCode(error) {

src/utils.ts

@@ -127,7 +127,13 @@ export function readFile(path: string): string {
 }
 
 export function readFileBase64(pathParts: string[]): string {
-  return fs.readFileSync(path.resolve(...pathParts)).toString('base64')
+  const resolvedPath = path.resolve(...pathParts)
+  if (fs.lstatSync(resolvedPath).isSymbolicLink()) {
+    return fs
+      .readlinkSync(resolvedPath, {encoding: 'buffer'})
+      .toString('base64')
+  }
+  return fs.readFileSync(resolvedPath).toString('base64')
 }
 
 /* eslint-disable  @typescript-eslint/no-explicit-any */