Add tomorrow and yesterday commands (#5)

* Ignore vscode workspace.

* Reformat readme (satisfy vscode markdown linter).

* Improve error handling in cli.

* Improve tests (number of args, invalid date).

* Replace tabs with spaces in readme.

* Support yesterday and tomorrow dates.

* Update README with yesterday and tomorrow keywords.

* Satisfy linter.

* Update CLI help message

Co-authored-by: Knut Kirkhorn <[email protected]>

.eslintrc.json

@@ -13,6 +13,7 @@
         "sourceType": "module"
     },
     "rules": {
+        "no-console": "off",
         "indent": ["error", "tab"],
         "no-tabs": "off",
         "quotes": ["error", "single"],

README.md

@@ -1,22 +1,29 @@
 # week-number-cli
+
 > 📅 Get the ISO 8601 week number of a date CLI
 
 ## Installation
+
 ```sh
 npm install --global @knutkirkhorn/week-number-cli
 ```
 
 ## Usage
+
 ```sh
 $ week-number --help
 
-	Usage
-	  $ week-number
-	  $ week-number <date>
-	Examples
-	  $ week-number
-	  $ week-number "September 3, 2019 23:15:30"
+  Usage
+    $ week-number
+    $ week-number "<date>"
+    $ week-number yesterday
+    $ week-number tomorrow
+  Examples
+    $ week-number
+    $ week-number "September 3, 2019 23:15:30"
+    $ week-number yesterday
 ```
 
 ## Related
+
 - [week-number](https://github.com/knutkirkhorn/week-number) - API for this module

cli.js

@@ -1,23 +1,35 @@
 #!/usr/bin/env node
 
 import meow from 'meow';
-import weekNumber from '@knutkirkhorn/week-number';
+import weekNumber, {tomorrowWeekNumber, yesterdayWeekNumber} from '@knutkirkhorn/week-number';
 
 const cli = meow(`
 	Usage
 	  $ week-number
-	  $ week-number <date>
+	  $ week-number "<date>"
+	  $ week-number yesterday
+	  $ week-number tomorrow
 	Examples
 	  $ week-number
 	  $ week-number "September 3, 2019 23:15:30"
+	  $ week-number yesterday
 `, {
 	importMeta: import.meta
 });
 
 const inputDate = cli.input[0];
 
-if (cli.input.length === 0) {
-	console.log(weekNumber());
-} else if (cli.input.length === 1) {
-	console.log(weekNumber(inputDate));
+try {
+	if (cli.input.length > 1) {
+		throw new Error('Command takes 0 or 1 argument.');
+	}
+	if (inputDate === 'yesterday') {
+		console.log(yesterdayWeekNumber());
+	} else if (inputDate === 'tomorrow') {
+		console.log(tomorrowWeekNumber());
+	} else {
+		console.log(weekNumber(inputDate));
+	}
+} catch (error) {
+	console.error(error);
 }

package.json

@@ -32,7 +32,7 @@
   },
   "homepage": "https://github.com/knutkirkhorn/week-number-cli#readme",
   "dependencies": {
-    "@knutkirkhorn/week-number": "^2.0.0",
+    "@knutkirkhorn/week-number": "^2.1.0",
     "meow": "^10.1.3"
   },
   "devDependencies": {

test.js

@@ -6,3 +6,23 @@ test('cli can print out', async t => {
 	const {stdout} = await execa('./cli.js', ['--version']);
 	t.true(stdout.length > 0);
 });
+
+test('cli yesterday', async t => {
+	const {stdout} = await execa('./cli.js', ['yesterday']);
+	t.true(stdout.length > 0);
+});
+
+test('cli tomorrow', async t => {
+	const {stdout} = await execa('./cli.js', ['tomorrow']);
+	t.true(stdout.length > 0);
+});
+
+test('cli errors, 2 or more arguments', async t => {
+	const {stderr} = await execa('./cli.js', ['arg1', 'arg2']);
+	t.true(stderr.length > 0);
+});
+
+test('cli errors, invalid date', async t => {
+	const {stderr} = await execa('./cli.js', ['arg1']);
+	t.true(stderr.length > 0);
+});