Files
mcpctl/src/cli/src/formatters/table.ts
Michal 247b4967e5 feat: build CLI core framework with Commander.js
Add CLI entry point with Commander.js, config management (~/.mcpctl/config.json
with Zod validation), output formatters (table/json/yaml), config and status
commands with dependency injection for testing. Fix sanitizeString regex ordering.
67 tests passing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-21 04:35:00 +00:00

45 lines
1.5 KiB
TypeScript

export interface Column<T> {
header: string;
key: keyof T | ((row: T) => string);
width?: number;
align?: 'left' | 'right';
}
export function formatTable<T>(rows: T[], columns: Column<T>[]): string {
if (rows.length === 0) {
return 'No results found.';
}
const getValue = (row: T, col: Column<T>): string => {
if (typeof col.key === 'function') {
return col.key(row);
}
const val = row[col.key];
return val == null ? '' : String(val);
};
// Calculate column widths
const widths = columns.map((col) => {
if (col.width !== undefined) return col.width;
const headerLen = col.header.length;
const maxDataLen = rows.reduce((max, row) => {
const val = getValue(row, col);
return Math.max(max, val.length);
}, 0);
return Math.max(headerLen, maxDataLen);
});
const pad = (text: string, width: number, align: 'left' | 'right' = 'left'): string => {
const truncated = text.length > width ? text.slice(0, width - 1) + '\u2026' : text;
return align === 'right' ? truncated.padStart(width) : truncated.padEnd(width);
};
const headerLine = columns.map((col, i) => pad(col.header, widths[i] ?? 0, col.align ?? 'left')).join(' ');
const separator = widths.map((w) => '-'.repeat(w)).join(' ');
const dataLines = rows.map((row) =>
columns.map((col, i) => pad(getValue(row, col), widths[i] ?? 0, col.align ?? 'left')).join(' '),
);
return [headerLine, separator, ...dataLines].join('\n');
}