Add option to generate not-colorized output

[divaltor]

Hello, thanks for this CLI, very helpful

Could we add option to generate output without ANSI color sequences because it pollutes context with unnecessary symbols and doesn't give any benefits to an agent. I'm using it via custom Opencode plugin and process output directly (not in bash) and colored sequences are useless in that case.

I tested it with NO_COLOR=1 CLICOLOR=0 CLICOLOR_FORCE=0 TERM=dumb colgrep --yes --results 1 --lines 2 "search something"

const { spawnSync } = require('node:child_process')

const result = spawnSync(
  'colgrep',
  ['--yes', '--results', '1', '--lines', '2', '--', 'search something'],
  {
    encoding: 'utf8',
    env: {
      ...process.env,
      NO_COLOR: '1',
      CLICOLOR: '0',
      CLICOLOR_FORCE: '0',
      TERM: 'dumb',
    },
  }
)

const output = `${result.stderr || ''}${result.stdout || ''}`
console.log('has ANSI:', /\u001b\[[0-?]*[ -/]*[@-~]/.test(output))
console.log(JSON.stringify(output.slice(0, 220)))

Option like --color=auto|always|never would help a lot, thanks

Might add option to disable line numbers from output too

[raphaelsty]

Hi @divaltor, sounds good to me, I'll draft a PR which deactivate hilighting on option :)

[raphaelsty]

Shipped in #109 — thanks for the issue! 🙏

Disable color with --color never:

colgrep --color never "search something"

--color accepts auto (default), always, or never and works on every subcommand. In auto, NO_COLOR=1 and piping to a non-terminal now strip color too.