feat: local path to custom electron build (windows support)

Close #1534, Close #1342

Author: MariaDima

packages/electron-builder/src/macPackager.ts

@@ -245,4 +245,12 @@ export default class MacPackager extends PlatformPackager<MacOptions> {
     args.push(outFile)
     return await exec("productbuild", args)
   }
+
+  public getElectronSrcDir(dist: string) {
+    return path.resolve(this.projectDir, dist, this.electronDistMacOsAppName)
+  }
+
+  public getElectronDestDir(appOutDir: string) {
+    return path.join(appOutDir, this.electronDistMacOsAppName)
+  }
 }

packages/electron-builder/src/packager/dirPackager.ts

@@ -2,7 +2,7 @@ import { path7za } from "7zip-bin"
 import BluebirdPromise from "bluebird-lst"
 import { debug7zArgs, spawn } from "electron-builder-util"
 import { copyDir } from "electron-builder-util/out/fs"
-import { warn } from "electron-builder-util/out/log"
+import { log, warn } from "electron-builder-util/out/log"
 import { chmod, emptyDir } from "fs-extra-p"
 import * as path from "path"
 import { PlatformPackager } from "../platformPackager"
@@ -55,8 +55,11 @@ async function unpack(packager: PlatformPackager<any>, out: string, platform: st
     await spawn(path7za, debug7zArgs("x").concat(zipPath, `-o${out}`))
   }
   else {
+    const source = packager.getElectronSrcDir(dist)
+    const destination = packager.getElectronDestDir(out)
+    log(`Copying Electron from "${source}" to "${destination}"`)
     await emptyDir(out)
-    await copyDir(path.resolve(packager.info.projectDir, dist, "Electron.app"), path.join(out, "Electron.app"))
+    await copyDir(source, destination)
   }
 
   if (platform === "linux") {

packages/electron-builder/src/platformPackager.ts

@@ -272,6 +272,14 @@ export abstract class PlatformPackager<DC extends PlatformSpecificBuildOptions>
     return deepAssign({}, result)
   }
 
+  public getElectronSrcDir(dist: string): string {
+    return path.resolve(this.projectDir, dist)
+  }
+
+  public getElectronDestDir(appOutDir: string): string {
+    return appOutDir
+  }
+
   public getResourcesDir(appOutDir: string): string {
     return this.platform === Platform.MAC ? this.getMacOsResourcesDir(appOutDir) : path.join(appOutDir, "resources")
   }

test/out/windows/__snapshots__/winPackagerTest.js.snap

@@ -6,6 +6,8 @@ exports[`icon not an image 1`] = `"Windows icon is not valid ico file, please fi
 
 exports[`sign certificateSha1 1`] = `"certificateSha1 supported only on Windows"`;
 
+exports[`sign electronDist 1`] = `"ENOENT: no such file or directory, scandir '<path>/foo'"`;
+
 exports[`sign ev 1`] = `"certificateSubjectName supported only on Windows"`;
 
 exports[`sign forceCodeSigning 1`] = `"App is not signed and \\"forceCodeSigning\\" is set to true, please ensure that code signing configuration is correct, please see https://github.com/electron-userland/electron-builder/wiki/Code-Signing"`;

test/src/windows/winPackagerTest.ts

@@ -1,4 +1,4 @@
-import { Platform } from "electron-builder"
+import { DIR_TARGET, Platform } from "electron-builder"
 import { rename, unlink, writeFile } from "fs-extra-p"
 import * as path from "path"
 import { CheckingWinPackager } from "../helpers/CheckingPackager"
@@ -69,4 +69,11 @@ describe.ifAll("sign", () => {
       forceCodeSigning: true,
     }
   }))
+
+  test.ifNotCiMac("electronDist", appThrows({
+    targets: Platform.WINDOWS.createTarget(DIR_TARGET),
+    config: {
+      electronDist: "foo",
+    }
+  }))
 })