feat: support builds from a cargo workspace

Author: JoelRoxell

index.js

@@ -48,6 +48,7 @@ class RustPlugin {
         dockerImage: DEFAULT_DOCKER_IMAGE,
         dockerless: false,
         strictMode: true,
+        inWorkspace: false,
       },
       (this.serverless.service.custom && this.serverless.service.custom.rust) ||
         {},
@@ -168,7 +169,7 @@ class RustPlugin {
     const zip = new AdmZip();
     zip.addFile(
       "bootstrap",
-      readFileSync(path.join(sourceDir, binary)),
+      readFileSync(path.join(this.custom.inWorkspace ? '..' : '', sourceDir, binary)),
       "",
       0o755,
     );

tests/unit/index.test.js

@@ -42,6 +42,7 @@ describe("RustPlugin", () => {
       dockerTag: "latest",
       dockerless: false,
       strictMode: true,
+      inWorkspace: false
     });
   });
 
@@ -57,6 +58,7 @@ describe("RustPlugin", () => {
               dockerTag: "custom-tag",
               dockerless: true,
               strictMode: false,
+              inWorkspace: false
             },
           },
           package: {},
@@ -71,6 +73,7 @@ describe("RustPlugin", () => {
       dockerTag: "custom-tag",
       dockerless: true,
       strictMode: false,
+      inWorkspace: false
     });
   });