chore: harden installer and add smoke ci

src/postinstall-patcher.test.ts

@@ -0,0 +1,117 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+
+import { applyPatchSet } from "../scripts/postinstall.js";
+
+function makeTempDir() {
+  return fs.mkdtempSync(path.join(os.tmpdir(), "clawdbot-patch-"));
+}
+
+describe("postinstall patcher", () => {
+  it("applies a simple patch", () => {
+    const dir = makeTempDir();
+    const target = path.join(dir, "lib");
+    fs.mkdirSync(target);
+
+    const filePath = path.join(target, "main.js");
+    const original = [
+      "var QRCode = require('./../vendor/QRCode'),",
+      "    QRErrorCorrectLevel = require('./../vendor/QRCode/QRErrorCorrectLevel'),",
+      '    black = "\\033[40m  \\033[0m",',
+      '    white = "\\033[47m  \\033[0m",',
+      "    toCell = function (isBlack) {",
+    ].join("\n") + "\n";
+    fs.writeFileSync(filePath, original, "utf-8");
+
+    const patchText = `diff --git a/lib/main.js b/lib/main.js
+index 0000000..1111111 100644
+--- a/lib/main.js
++++ b/lib/main.js
+@@ -1,5 +1,5 @@
+-var QRCode = require('./../vendor/QRCode'),
+-    QRErrorCorrectLevel = require('./../vendor/QRCode/QRErrorCorrectLevel'),
++var QRCode = require('./../vendor/QRCode/index.js'),
++    QRErrorCorrectLevel = require('./../vendor/QRCode/QRErrorCorrectLevel.js'),
+     black = "\\033[40m  \\033[0m",
+     white = "\\033[47m  \\033[0m",
+     toCell = function (isBlack) {
+`;
+
+    applyPatchSet({ patchText, targetDir: dir });
+
+    const updated = fs.readFileSync(filePath, "utf-8");
+    expect(updated).toBe(
+      [
+        "var QRCode = require('./../vendor/QRCode/index.js'),",
+        "    QRErrorCorrectLevel = require('./../vendor/QRCode/QRErrorCorrectLevel.js'),",
+        '    black = "\\033[40m  \\033[0m",',
+        '    white = "\\033[47m  \\033[0m",',
+        "    toCell = function (isBlack) {",
+      ].join("\n") + "\n",
+    );
+
+    fs.rmSync(dir, { recursive: true, force: true });
+  });
+
+  it("handles multiple hunks with offsets", () => {
+    const dir = makeTempDir();
+    const filePath = path.join(dir, "file.txt");
+    fs.writeFileSync(
+      filePath,
+      ["alpha", "beta", "gamma", "delta", "epsilon"].join("\n") + "\n",
+      "utf-8",
+    );
+
+    const patchText = `diff --git a/file.txt b/file.txt
+--- a/file.txt
++++ b/file.txt
+@@ -1,3 +1,4 @@
+ alpha
+ beta
++beta2
+ gamma
+@@ -3,3 +4,4 @@
+ gamma
+-delta
++DELTA
+ epsilon
++zeta
+`;
+
+    applyPatchSet({ patchText, targetDir: dir });
+
+    const updated = fs.readFileSync(filePath, "utf-8").trim().split("\n");
+    expect(updated).toEqual([
+      "alpha",
+      "beta",
+      "beta2",
+      "gamma",
+      "DELTA",
+      "epsilon",
+      "zeta",
+    ]);
+
+    fs.rmSync(dir, { recursive: true, force: true });
+  });
+
+  it("throws on context mismatch", () => {
+    const dir = makeTempDir();
+    const filePath = path.join(dir, "file.txt");
+    fs.writeFileSync(filePath, "hello\nworld\n", "utf-8");
+
+    const patchText = `diff --git a/file.txt b/file.txt
+--- a/file.txt
++++ b/file.txt
+@@ -1,2 +1,2 @@
+-hola
++hi
+ world
+`;
+
+    expect(() => applyPatchSet({ patchText, targetDir: dir })).toThrow();
+
+    fs.rmSync(dir, { recursive: true, force: true });
+  });
+});