fix: Certificate file for sign was gone (provides with file://) under windows

Closes #619

Author: develar

src/codeSign.ts

@@ -89,7 +89,7 @@ export async function createKeychain(keychainName: string, cscLink: string, cscK
     ])
     .then<CodeSigningInfo>(() => importCerts(keychainName, certPaths, <Array<string>>[cscKeyPassword, cscIKeyPassword].filter(it => it != null))),
     errorOccurred => {
-      const tasks = certPaths.map((it, index) => certLinks[index].startsWith("file://") ? BluebirdPromise.resolve() : deleteFile(it, true))
+      const tasks = certPaths.map((it, index) => certLinks[index].startsWith("https://") ? deleteFile(it, true) : BluebirdPromise.resolve())
       if (errorOccurred) {
         tasks.push(deleteKeychain(keychainName))
       }

src/winPackager.ts

@@ -27,17 +27,20 @@ export class WinPackager extends PlatformPackager<WinBuildOptions> {
     super(info)
 
     const certificateFile = this.platformSpecificBuildOptions.certificateFile
+    const cscLink = this.options.cscLink
     if (certificateFile != null) {
       const certificatePassword = this.platformSpecificBuildOptions.certificatePassword || this.getCscPassword()
       this.cscInfo = BluebirdPromise.resolve({
         file: certificateFile,
         password: certificatePassword == null ? null : certificatePassword.trim(),
       })
     }
-    else if (this.options.cscLink != null) {
-      this.cscInfo = downloadCertificate(this.options.cscLink)
+    else if (cscLink != null) {
+      this.cscInfo = downloadCertificate(cscLink)
         .then(path => {
-          cleanupTasks.push(() => deleteFile(path, true))
+          if (cscLink.startsWith("https://")) {
+            cleanupTasks.push(() => deleteFile(path, true))
+          }
           return {
             file: path,
             password: this.getCscPassword(),