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feat: add support for Chalk color functions in prefix colors#578

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gustavohenke merged 2 commits intoopen-cli-tools:mainfrom
stephanschubert:feat/chalk-color-functions
Apr 18, 2026
Merged

feat: add support for Chalk color functions in prefix colors#578
gustavohenke merged 2 commits intoopen-cli-tools:mainfrom
stephanschubert:feat/chalk-color-functions

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@stephanschubert stephanschubert commented Dec 14, 2025

Summary

  • Add support for all Chalk color functions: hex(), bgHex(), rgb(), bgRgb(), ansi256(), bgAnsi256()
  • Add shorthand syntax #RRGGBB (foreground) and bg#RRGGBB (background)
  • Support chaining functions and modifiers (e.g., rgb(255,136,0).bold, black.bgHex(#00FF00).dim)
  • Fix CLI parsing to correctly handle commas inside function calls like rgb(255,255,0)

Examples

# Hex colors
$ concurrently -c 'bg#FF0000.bold,black.bgHex(#00FF00).dim' 'echo Red bg' 'echo Green bg'

# RGB colors
$ concurrently -c 'rgb(255,136,0).bold,black.bgRgb(100,100,255)' 'echo Orange' 'echo Blue bg'

# ANSI 256 colors
$ concurrently -c 'ansi256(199),ansi256(50).bgAnsi256(17)' 'echo Pink' 'echo Cyan on blue'

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coveralls commented Dec 14, 2025 •
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Coverage Status

coverage: 100.0%. remained the same — stephanschubert:feat/chalk-color-functions into open-cli-tools:main

@stephanschubert stephanschubert force-pushed the feat/chalk-color-functions branch from 60300e8 to d74c6a0 Compare December 14, 2025 14:48
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stephanschubert commented Dec 14, 2025

Updated coverage:

 % Coverage report from v8
---------------------------|---------|----------|---------|---------|-------------------
File                       | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s
---------------------------|---------|----------|---------|---------|-------------------
All files                  |     100 |    99.83 |     100 |     100 |
 lib                       |     100 |    99.75 |     100 |     100 |
  assert.ts                |     100 |      100 |     100 |     100 |
  command.ts               |     100 |      100 |     100 |     100 |
  completion-listener.ts   |     100 |      100 |     100 |     100 |
  concurrently.ts          |     100 |      100 |     100 |     100 |
  date-format.ts           |     100 |    98.98 |     100 |     100 | 281
  defaults.ts              |     100 |      100 |     100 |     100 |
  jsonc.ts                 |     100 |      100 |     100 |     100 |
  logger.ts                |     100 |      100 |     100 |     100 |
  observables.ts           |     100 |      100 |     100 |     100 |
  output-writer.ts         |     100 |      100 |     100 |     100 |
  prefix-color-selector.ts |     100 |      100 |     100 |     100 |
  spawn.ts                 |     100 |      100 |     100 |     100 |
  utils.ts                 |     100 |      100 |     100 |     100 |
 lib/__fixtures__          |     100 |      100 |     100 |     100 |
  create-mock-instance.ts  |     100 |      100 |     100 |     100 |
  fake-command.ts          |     100 |      100 |     100 |     100 |
 lib/command-parser        |     100 |      100 |     100 |     100 |
  expand-arguments.ts      |     100 |      100 |     100 |     100 |
  expand-shortcut.ts       |     100 |      100 |     100 |     100 |
  expand-wildcard.ts       |     100 |      100 |     100 |     100 |
  strip-quotes.ts          |     100 |      100 |     100 |     100 |
 lib/flow-control          |     100 |      100 |     100 |     100 |
  input-handler.ts         |     100 |      100 |     100 |     100 |
  kill-on-signal.ts        |     100 |      100 |     100 |     100 |
  kill-others.ts           |     100 |      100 |     100 |     100 |
  log-error.ts             |     100 |      100 |     100 |     100 |
  log-exit.ts              |     100 |      100 |     100 |     100 |
  log-output.ts            |     100 |      100 |     100 |     100 |
  log-timings.ts           |     100 |      100 |     100 |     100 |
  logger-padding.ts        |     100 |      100 |     100 |     100 |
  output-error-handler.ts  |     100 |      100 |     100 |     100 |
  restart-process.ts       |     100 |      100 |     100 |     100 |
  teardown.ts              |     100 |      100 |     100 |     100 |
---------------------------|---------|----------|---------|---------|-------------------

gustavohenke
gustavohenke requested changes Mar 8, 2026
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Whoa this looks like a powerful improvement to prefix colouring!
Can you rebase your PR, please?

Comment thread bin/index.ts Outdated
@stephanschubert
feat: add support for Chalk color functions in prefix colors
20aa945 
Add support for all Chalk color functions: hex(), bgHex(), rgb(), bgRgb(),
ansi256(), bgAnsi256(), plus shorthand syntax #RRGGBB and bg#RRGGBB.

Functions and modifiers can be chained (e.g., rgb(255,136,0).bold,
black.bgHex(#00FF00).dim).

The CLI now correctly parses color arguments containing commas inside
function calls like rgb(255,255,0) by using a parenthesis-aware splitter.
@stephanschubert
refactor: extract splitOutsideParens shared helper
dafbc3e 
The CLI's comma-splitter for color args and the logger's dot-splitter for
color path segments shared near-identical paren-aware string walking. Extract
the shared logic into lib/utils.ts, parameterized on the delimiter, and wire
up both call sites.
@stephanschubert stephanschubert force-pushed the feat/chalk-color-functions branch from d74c6a0 to dafbc3e Compare April 17, 2026 13:49
gustavohenke
gustavohenke approved these changes Apr 18, 2026
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Thank you!

Comment thread lib/logger.spec.ts
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@gustavohenke gustavohenke Apr 18, 2026

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Awesome coverage

@gustavohenke gustavohenke merged commit 74dffcd into open-cli-tools:main Apr 18, 2026
31 of 32 checks passed
@stephanschubert stephanschubert deleted the feat/chalk-color-functions branch April 18, 2026 06:14
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