coderoad · ShMcK · Jun 13, 2020 · Jun 13, 2020 · Jun 13, 2020 · Jun 13, 2020
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -49,6 +49,7 @@
   "dependencies": {
     "ajv": "^6.12.2",
     "esm": "^3.2.25",
+    "fs-extra": "^9.0.1",
     "js-yaml": "^3.14.0",
     "kleur": "^3.0.3",
     "lodash": "^4.17.15",
@@ -58,6 +59,7 @@
   "devDependencies": {
     "@babel/preset-typescript": "^7.10.1",
     "@types/ajv": "^1.0.0",
+    "@types/fs-extra": "^9.0.1",
     "@types/inquirer": "^6.5.0",
     "@types/jest": "^25.2.3",
     "@types/js-yaml": "^3.12.4",

diff --git a/src/utils/exec.ts b/src/utils/exec.ts
@@ -0,0 +1,91 @@
+import * as T from "../../typings/tutorial";
+import { exec as cpExec } from "child_process";
+import * as path from "path";
+import { promisify } from "util";
+
+const asyncExec = promisify(cpExec);
+
+export function createExec(cwd: string) {
+  return async function exec(
+    command: string
+  ): Promise<{ stdout: string | null; stderr: string }> {
+    try {
+      const result = await asyncExec(command, { cwd });
+      return result;
+    } catch (e) {
+      return { stdout: null, stderr: e.message };
+    }
+  };
+}
+
+export function createCherryPick(cwd: string) {
+  return async function cherryPick(commits: string[]): Promise<void> {
+    for (const commit of commits) {
+      try {
+        const { stdout } = await createExec(cwd)(
+          `git cherry-pick -X theirs ${commit}`
+        );
+        if (!stdout) {
+          console.warn(`No cherry-pick output for ${commit}`);
+        }
+      } catch (e) {
+        console.warn(`Cherry-pick failed for ${commit}`);
+      }
+    }
+  };
+}
+
+export function createCommandRunner(cwd: string) {
+  return async function runCommands(
+    commands: string[],
+    dir?: string
+  ): Promise<boolean> {
+    let errors = [];
+    for (const command of commands) {
+      try {
+        console.log(`--> ${command}`);
+        let cwdDir = cwd;
+        if (dir) {
+          cwdDir = path.join(cwd, dir);
+        }
+        const { stdout, stderr } = await createExec(cwdDir)(command);
+
+        console.warn(stderr);
+      } catch (e) {
+        console.error(`Command failed: "${command}"`);
+        console.warn(e.message);
+        errors.push(e.message);
+      }
+    }
+    return !!errors.length;
+  };
+}
+
+// function isAbsolute(p: string) {
+//   return path.normalize(p + "/") === path.normalize(path.resolve(p) + "/");
+// }
+
+export function createTestRunner(cwd: string, config: T.TestRunnerConfig) {
+  const { command, args, directory } = config;
+
+  // const commandIsAbsolute = isAbsolute(command);
+
+  let wd = cwd;
+  if (directory) {
+    wd = path.join(cwd, directory);
+  }
+
+  const commandWithArgs = `${command} ${args.tap}`;
+
+  return async function runTest(): Promise<{
+    stdout: string | null;
+    stderr: string | null;
+  }> {
+    try {
+      // console.log(await createExec(wd)("ls -a node_modules/.bin"));
+      return await createExec(wd)(commandWithArgs);
+    } catch (e) {
+      return Promise.resolve({ stdout: null, stderr: e.message });
+    }
+  };
+}