add stax metadata

.gitignore

@@ -1 +1,2 @@
-.vscode
+.vscode
+coverage/

example/immich.ts

@@ -4,6 +4,7 @@
  */
 
 import { ComposeStack, Service } from "../mod.ts";
+import { setProjectRoot } from "../src/path.ts";
 
 interface ImmichStackOptions {
   stackName?: string;
@@ -18,7 +19,7 @@ interface ImmichStackOptions {
 
 export class ImmichStack extends ComposeStack {
   constructor(props: ImmichStackOptions) {
-    super(props.stackName ?? "immich");
+    super(import.meta.url, props.stackName ?? "immich");
 
     const redis = new Service(this, "redis", {
       image: "registry.hub.docker.com/library/redis:6.2-alpine",
@@ -88,4 +89,6 @@ export class ImmichStack extends ComposeStack {
   }
 }
 
+setProjectRoot(import.meta.url);
+
 const _stack = new ImmichStack({ immichVersion: "v1.100.0" });

src/components/stack.ts

@@ -1,5 +1,6 @@
-import { ComposeSpecification } from "../compose-schema.ts";
+import { ComposeSpecification, ListOrDict } from "../compose-schema.ts";
 import { registerDeployment } from "../deployment.ts";
+import { relative } from "../path.ts";
 import { Network } from "./network.ts";
 import { Service } from "./service.ts";
 import { Volume } from "./volume.ts";
@@ -24,7 +25,7 @@ function mapRecordToCompose<T, F extends { toCompose(): T }>(
  *
  * class ExampleStack extends Stack {
  *   constructor(name: string) {
- *     super(name);
+ *     super(import.meta.url, name);
  *
  *     const redis = this.addService("redis", {
  *       image: "registry.hub.docker.com/library/redis:6.2-alpine",
@@ -41,7 +42,7 @@ export class ComposeStack {
   private networks: Record<string, Network> = {};
   private volumes: Record<string, Volume> = {};
 
-  constructor(public name: string) {
+  constructor(public readonly stackPath: string, public name: string) {
     registerDeployment(this);
   }
 
@@ -52,6 +53,9 @@ export class ComposeStack {
       throw new Error(`Service ${name} already defined.`);
     }
 
+    // Inject stax labels
+    this.injectLabels(service);
+
     this.services[name] = service;
     return this.services[name];
   }
@@ -63,6 +67,11 @@ export class ComposeStack {
       throw new Error(`Network ${name} already defined.`);
     }
 
+    // Inject stax labels if not external
+    if (!network.options.external) {
+      this.injectLabels(network);
+    }
+
     this.networks[name] = network;
     return this.networks[name];
   }
@@ -74,6 +83,9 @@ export class ComposeStack {
       throw new Error(`Volume ${name} already defined.`);
     }
 
+    // Inject stax labels
+    this.injectLabels(volume);
+
     this.volumes[name] = volume;
     return this.volumes[name];
   }
@@ -86,4 +98,16 @@ export class ComposeStack {
       volumes: mapRecordToCompose(this.volumes),
     };
   }
+
+  private injectLabels<
+    T extends { options: { labels?: ListOrDict | undefined } }
+  >(resourse: T) {
+    resourse.options.labels = {
+      ...resourse.options.labels,
+      ...{
+        "com.stax.stack": this.name,
+        "com.stax.stack-path": relative(this.stackPath),
+      },
+    };
+  }
 }

src/path.ts

@@ -0,0 +1,12 @@
+let basePath: string = "";
+
+export function setProjectRoot(path: string) {
+  // Replace last segment with /
+  const index = path.lastIndexOf("/");
+  basePath = path.slice(0, index + 1);
+}
+
+export function relative(path: string): string {
+  // Remove base path
+  return path.slice(basePath.length);
+}

src/path_test.ts

@@ -0,0 +1,21 @@
+import { assertEquals } from "https://deno.land/std@0.223.0/assert/mod.ts";
+import { relative, setProjectRoot } from "./path.ts";
+
+Deno.test("Test relative without setProjectRoot", () => {
+  const rel = relative("file://c:/projects/staxman/containerlib/path.ts");
+  assertEquals(rel, "file://c:/projects/staxman/containerlib/path.ts");
+});
+
+Deno.test("Test relative with setProjectRoot", () => {
+  setProjectRoot("file://c:/projects/staxman/containerlib/module.ts");
+
+  // In subdir
+  const insubdir = relative(
+    "file://c:/projects/staxman/containerlib/subdir/path.ts"
+  );
+  assertEquals(insubdir, "subdir/path.ts");
+
+  // Same folder as base
+  const samedir = relative("file://c:/projects/staxman/containerlib/path.ts");
+  assertEquals(samedir, "path.ts");
+});