feat: Add --max-rows argument

Author: effigies

src/setup/options.test.ts

@@ -10,6 +10,7 @@ Deno.test('options parsing', async (t) => {
       json: true,
       color: false,
       blacklistModalities: [],
+      maxRows: 1000,
     })
   })
 })

src/setup/options.ts

@@ -30,6 +30,7 @@ export type ValidatorOptions = {
   outfile?: string
   blacklistModalities: string[]
   prune?: boolean
+  maxRows?: number
 }
 
 const modalityType = new EnumType<string>(
@@ -50,6 +51,11 @@ export const validateCommand: Command<void, void, any, string[], void> = new Com
     'Specify a schema version to use for validation',
   )
   .option('-c, --config <file:string>', 'Path to a JSON configuration file')
+  .option(
+    '--max-rows <nrows:number>',
+    'Maximum number of rows to validate in TSVs. Use 0 to validate headers only. Use -1 to validate all.',
+    { default: 1000 },
+  )
   .option('-v, --verbose', 'Log more extensive information about issues')
   .option('--ignoreWarnings', 'Disregard non-critical issues')
   .option(