feat(cargo): Add support for cargo workspace

README.md

@@ -62,6 +62,9 @@ functions:
 
 The default behavior is to build your lambda inside a docker container. Make sure you have a docker daemon running if you are not opting into the dockerless mode.
 
+## Use with cargo workspaces 
+Workspaces and per workspace serverless files are now supported. To use it, a custom flag has been added to signal that the serverless.yml is nested in a cargo workspace. Since the binaries will be outputted to a target folder in the workspace root, the zip-copy-process needs to take that into account.
+
 ## 🖍️ customize
 
 You can optionally adjust the default settings of the dockerized build env using
@@ -78,6 +81,8 @@ custom:
     dockerTag: 'some-custom-tag'
     #  custom docker image
     dockerImage: 'dockerUser/dockerRepo'
+    # Using a workspace? 
+    inWorkspace: true # <---- Defaults to false
 ```
 
 ### 🥼 (experimental) local builds

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
     });
   });