Tooling improvements (#34)

* feat: update tsconfig, uninstall vercel/ncc package and use tsc to build project

* feat: install 1password/front-end-style and configure Prettier

* feat: configure ESLint and fix lint errors

* build(deps): update types/node package to latest version

* feat: configure Jest

* feat: add 'validate' script to run formatting/linting/testing/building all together

* build: rebuild the dist/index.js file

* feat: make NPM scripts more granular

* refactor: make it clearer that Prettier config is being loaded from an existing dependency

* feat: add Husky and lint-staged to run pre-commit and pre-push checks

* fix: lint-staged testing step and Jest config file

* build(deps): update types/node package to latest version

* refactor: remove findrelated test script

* fix: move tsconfig.json to root directory, reinstall vercel/ncc for building

* fix: call to run function in index.ts

* build: rebuild the dist/index.js file

* fix: replace CommonJS __dirname with an ESModule equivalent

* fix: ignore config/.husky during ShellCheck

* fix: ignore .husky directory during ShellCheck

* fix: update lint.yml config to match ShellCheck README.md

* fix: remove coveragePathIgnorePatterns option from Jest config since node_modules is already the default value

* refactor: use './' prefix to refer to folders in the current directory in tsconfig.json

* fix: handle edge case where Error constructor is modified and add comments for context

* feat: bump package.json version to 1.2.0 to match current release

* fix: update lint.yml to use ShellCheck 2.0.0 exact version

* build(deps): update types/node package to latest version

* fix: update package-lock.json version 1.2.0

* feat: remove pre-commit and pre-push NPM scripts to simplify package.json

* fix: remove empty 'Default' column from 'configure Action Inputs' table

* fix: change the default values in action.yml to strings as per YAML validation

src/index.ts

@@ -1,21 +1,32 @@
-import * as core from '@actions/core';
-import * as exec from '@actions/exec';
-import path from 'path';
+import path from "path";
+import url from "url";
+import * as core from "@actions/core";
+import * as exec from "@actions/exec";
 
-async function run(): Promise<void> {
-  try {
-    const parentDir = path.resolve(__dirname, '..');
-    
-    // Get action inputs
-    process.env.INPUT_UNSET_PREVIOUS = core.getInput('unset-previous');
-    process.env.INPUT_EXPORT_ENV = core.getInput('export-env');
+const run = async () => {
+	try {
+		const currentFile = url.fileURLToPath(import.meta.url);
+		const currentDir = path.dirname(currentFile);
+		const parentDir = path.resolve(currentDir, "..");
 
-    // Execute bash script
-    await exec.exec(`sh -c "` + parentDir + `/entrypoint.sh"`);
+		// Get action inputs
+		process.env.INPUT_UNSET_PREVIOUS = core.getInput("unset-previous");
+		process.env.INPUT_EXPORT_ENV = core.getInput("export-env");
 
-  } catch (error: any) {
-    core.setFailed(error.message);
-  }
-}
+		// Execute bash script
+		await exec.exec(`sh -c "` + parentDir + `/entrypoint.sh"`);
+	} catch (error) {
+		// It's possible for the Error constructor to be modified to be anything
+		// in JavaScript, so the following code accounts for this possibility.
+		// https://kentcdodds.com/blog/get-a-catch-block-error-message-with-typescript
+		let message = "Unknown Error";
+		if (error instanceof Error) {
+			message = error.message;
+		} else {
+			String(error);
+		}
+		core.setFailed(message);
+	}
+};
 
-run();
+void run();