feat: add ports to code

containers/postgres.ts

@@ -18,11 +18,11 @@
  * ```
  */
 
-import delay from "delay";
-import getPort from "port";
 import psql, { type Sql } from "postgres";
+import { delay } from "std/async/delay.ts";
 
 import type { Container } from "../docker/libraries/container.ts";
+import getPort from "../docker/libraries/port.ts";
 import { docker } from "../mod.ts";
 
 export class PostgresTestContainer {

deno.json

@@ -7,8 +7,6 @@
   },
   "imports": {
     "std/": "https://deno.land/std@0.224.0/",
-    "delay": "npm:delay@6.0.0",
-    "port": "https://deno.land/x/getport@v2.1.2/mod.ts",
     "postgres": "npm:postgres@3.4.4"
   },
   "exclude": [

deno.lock

@@ -2,14 +2,9 @@
   "version": "3",
   "packages": {
     "specifiers": {
-      "npm:delay@6.0.0": "npm:delay@6.0.0",
       "npm:postgres@3.4.4": "npm:postgres@3.4.4"
     },
     "npm": {
-      "delay@6.0.0": {
-        "integrity": "sha512-2NJozoOHQ4NuZuVIr5CWd0iiLVIRSDepakaovIN+9eIDHEhdCAEvSy2cuf1DCrPPQLvHmbqTHODlhHg8UCy4zw==",
-        "dependencies": {}
-      },
       "postgres@3.4.4": {
         "integrity": "sha512-IbyN+9KslkqcXa8AO9fxpk97PA4pzewvpi2B3Dwy9u4zpV32QicaEdgmF3eSQUzdRk7ttDHQejNgAEr4XoeH4A==",
         "dependencies": {}
@@ -46,17 +41,16 @@
     "https://deno.land/std@0.224.0/assert/mod.ts": "48b8cb8a619ea0b7958ad7ee9376500fe902284bb36f0e32c598c3dc34cbd6f3",
     "https://deno.land/std@0.224.0/assert/unimplemented.ts": "8c55a5793e9147b4f1ef68cd66496b7d5ba7a9e7ca30c6da070c1a58da723d73",
     "https://deno.land/std@0.224.0/assert/unreachable.ts": "5ae3dbf63ef988615b93eb08d395dda771c96546565f9e521ed86f6510c29e19",
+    "https://deno.land/std@0.224.0/async/delay.ts": "f90dd685b97c2f142b8069082993e437b1602b8e2561134827eeb7c12b95c499",
     "https://deno.land/std@0.224.0/fmt/colors.ts": "508563c0659dd7198ba4bbf87e97f654af3c34eb56ba790260f252ad8012e1c5",
     "https://deno.land/std@0.224.0/internal/diff.ts": "6234a4b493ebe65dc67a18a0eb97ef683626a1166a1906232ce186ae9f65f4e6",
     "https://deno.land/std@0.224.0/internal/format.ts": "0a98ee226fd3d43450245b1844b47003419d34d210fa989900861c79820d21c2",
     "https://deno.land/std@0.224.0/internal/mod.ts": "534125398c8e7426183e12dc255bb635d94e06d0f93c60a297723abe69d3b22e",
     "https://deno.land/std@0.224.0/testing/_test_suite.ts": "f10a8a6338b60c403f07a76f3f46bdc9f1e1a820c0a1decddeb2949f7a8a0546",
-    "https://deno.land/std@0.224.0/testing/bdd.ts": "3e4de4ff6d8f348b5574661cef9501b442046a59079e201b849d0e74120d476b",
-    "https://deno.land/x/getport@v2.1.2/mod.ts": "e1d629c14008fc1da85278615c55e9356c206d35054577c49639248e3c036f17"
+    "https://deno.land/std@0.224.0/testing/bdd.ts": "3e4de4ff6d8f348b5574661cef9501b442046a59079e201b849d0e74120d476b"
   },
   "workspace": {
     "dependencies": [
-      "npm:delay@6.0.0",
       "npm:postgres@3.4.4"
     ]
   }

docker/libraries/exec.ts

@@ -1,4 +1,4 @@
-import delay from "delay";
+import { delay } from "std/async/delay.ts";
 
 import { modem } from "./modem.ts";
 

docker/libraries/port.ts

@@ -0,0 +1,92 @@
+export const MIN_PORT = 1024;
+export const MAX_PORT = 65535;
+
+/**
+ * Try run listener to check if port is open.
+ *
+ * @param options
+ */
+export function checkPort(options: Deno.ListenOptions): CheckedPort {
+  const { port } = options;
+  try {
+    Deno.listen(options).close();
+    return { valid: true, port: port };
+  } catch (e) {
+    if (e.name !== "AddrInUse") {
+      throw e;
+    }
+    return { valid: false, port: port };
+  }
+}
+
+/**
+ * Create an array of number by min and max.
+ *
+ * @param from - Must be between 1024 and 65535
+ * @param to   - Must be between 1024 and 65535 and greater than from
+ */
+export function makeRange(from: number, to: number): number[] {
+  if (!(from > MIN_PORT || from < MAX_PORT)) {
+    throw new RangeError("`from` must be between 1024 and 65535");
+  }
+  if (!(to > MIN_PORT || to < MAX_PORT)) {
+    throw new RangeError("`to` must be between 1024 and 65536");
+  }
+  if (!(to > from)) {
+    throw new RangeError("`to` must be greater than or equal to `from`");
+  }
+  const ports = [];
+  for (let port = from; port <= to; port++) {
+    ports.push(port);
+  }
+  return ports;
+}
+
+/**
+ * Return a random port between 1024 and 65535.
+ *
+ * @param hostname
+ */
+export function randomPort(hostname?: string): number {
+  const port = Math.ceil(Math.random() * ((MAX_PORT - 1) - MIN_PORT + 1) + MIN_PORT + 1);
+  const result: CheckedPort = checkPort({ hostname, port });
+  if (result.valid) {
+    return result.port;
+  }
+  return randomPort(hostname);
+}
+
+/**
+ * Return available port.
+ *
+ * @param port
+ * @param hostname
+ */
+export default function getPort(port?: number | number[], hostname?: string): number {
+  const listenOptions: Deno.ListenOptions = {
+    hostname: hostname || "0.0.0.0",
+    port: (port && !Array.isArray(port)) ? port : 0,
+  };
+
+  if (!port || Array.isArray(port)) {
+    const ports: number[] = (Array.isArray(port)) ? port : makeRange(MIN_PORT + 1, MAX_PORT - 1);
+    for (const port of ports) {
+      const result: CheckedPort = checkPort({ ...listenOptions, port });
+      if (result.valid) return result.port;
+    }
+    return getPort(ports[ports.length - 1]);
+  }
+
+  const result: CheckedPort = checkPort(listenOptions);
+  if (!result.valid) {
+    const range = makeRange(result.port + 1, MAX_PORT - 1);
+    return getPort(range);
+  }
+
+  return result.port;
+}
+
+export type CheckedPort = {
+  valid: boolean;
+  port: number;
+};