1 files changed, 69 insertions, 0 deletions
diff --git a/packages/db/src/core/cli/print-help.ts b/packages/db/src/core/cli/print-help.ts
new file mode 100644
index 000000000..4082380b2
--- /dev/null
+++ b/packages/db/src/core/cli/print-help.ts
@@ -0,0 +1,69 @@
+import { bgGreen, bgWhite, black, bold, dim, green } from 'kleur/colors';
+
+/**
+ * Uses implementation from Astro core
+ * @see https://github.com/withastro/astro/blob/main/packages/astro/src/core/messages.ts#L303
+ */
+export function printHelp({
+	commandName,
+	headline,
+	usage,
+	tables,
+	description,
+}: {
+	commandName: string;
+	headline?: string;
+	usage?: string;
+	tables?: Record<string, [command: string, help: string][]>;
+	description?: string;
+}) {
+	const linebreak = () => '';
+	const title = (label: string) => `  ${bgWhite(black(` ${label} `))}`;
+	const table = (rows: [string, string][], { padding }: { padding: number }) => {
+		const split = process.stdout.columns < 60;
+		let raw = '';
+
+		for (const row of rows) {
+			if (split) {
+				raw += `    ${row[0]}\n    `;
+			} else {
+				raw += `${`${row[0]}`.padStart(padding)}`;
+			}
+			raw += '  ' + dim(row[1]) + '\n';
+		}
+
+		return raw.slice(0, -1); // remove latest \n
+	};
+
+	let message = [];
+
+	if (headline) {
+		message.push(
+			linebreak(),
+			`  ${bgGreen(black(` ${commandName} `))} ${green(
+				`v${process.env.PACKAGE_VERSION ?? ''}`,
+			)} ${headline}`,
+		);
+	}
+
+	if (usage) {
+		message.push(linebreak(), `  ${green(commandName)} ${bold(usage)}`);
+	}
+
+	if (tables) {
+		function calculateTablePadding(rows: [string, string][]) {
+			return rows.reduce((val, [first]) => Math.max(val, first.length), 0) + 2;
+		}
+		const tableEntries = Object.entries(tables);
+		const padding = Math.max(...tableEntries.map(([, rows]) => calculateTablePadding(rows)));
+		for (const [tableTitle, tableRows] of tableEntries) {
+			message.push(linebreak(), title(tableTitle), table(tableRows, { padding }));
+		}
+	}
+
+	if (description) {
+		message.push(linebreak(), `${description}`);
+	}
+
+	console.log(message.join('\n') + '\n');
+}