rly

rly is a concurrent task runner and, in its current form, essentially a clone of concurrently. For example:

$ rly --names "server,client" \ "nc -l 1234" \ "echo 'message from client' | nc localhost 1234" [server] message from client [server] nc -l 1234 exited with exit status: 0 [client] echo 'foo' | nc localhost 1234 exited with exit status: 0

Usage (in progress)

``` Usage: rly [OPTIONS] [COMMANDS]...

Arguments: [COMMANDS]...

Options: -n, --names List of custom names to be used in prefix template.

      Example names: "main,browser,server"

  --name-separator <NAME_SEPARATOR>
      The character to split <names> on.

      Example usage: -n "styles|scripts|server" --name-separator
      "|"

      [default: ,]

-r, --raw Output only raw output of processes, disables prettifying and concurrently coloring

  --no-color
      Disables colors from logging

  --hide <HIDE>
      Comma-separated list of processes for which to hide the
      output. The processes can be identified by their name or
      index

-g, --group Order the output as if the commands were run sequentially

  --timings
      Show timing information for all processes

-P, --passthrough-arguments Passthrough additional arguments to commands (accessible via placeholders) instead of treating them as commands

-p, --prefix Prefix used in logging for each process. Possible values: index, pid, time, command, name, none, or a template. Example template: "{time}-{pid}"

      [default: [{name}]]

-c, --prefix-colors Comma-separated list of chalk colors to use on prefixes. If there are more commands than colors, the last color will be repeated.

      - Available modifiers: reset, bold, dim, italic, underline,
      inverse, hidden, strikethrough

      - Available colors: black, red, green, yellow, blue,
      magenta, cyan, white, gray, any hex values for colors (e.g.
      #23de43) or auto for an automatically picked color

      - Available background colors: bgBlack, bgRed, bgGreen,
      bgYellow, bgBlue, bgMagenta, bgCyan, bgWhite

      See https://www.npmjs.com/package/chalk for more
      information.

      [default: reset]

-l, --prefix-length Limit how many characters of the command is displayed in prefix. The option can be used to shorten the prefix when it is set to "command"

      [default: 10]

-t, --timestamp-format Specify the timestamp in chrono::format syntax

      [default: "%Y-%m-%d %H:%M:%S.%3f"]

-k, --kill-others Kill other processes if one exits or dies

  --kill-others-on-fail
      Kill other processes if one exits with non zero status code

  --restart-tries <RESTART_TRIES>
      How many times a process that died should restart. Negative
      numbers will make the process restart forever

      [default: 0]

  --restart-after <RESTART_AFTER>
      Delay time to respawn the process, in milliseconds

      [default: 0]

-h, --help Print help information (use -h for a summary)

-V, --version Print version information ```

Why?

I like the UX of concurrently, but dislike having to install NodeJS / npm to use it. My goal is to make rly accessible via Homebrew (and potentially other package managers), so that installation only requires downloading a single binary.

Progress implementing concurrently features

• [x] commands can be supplied
• [x] --names can be passed
• [x] --name-separator
• [ ] --raw
• [x] --no-color
• [ ] --hide
• [ ] --timings
• [ ] --passthrough-arguments
• [x] --prefix
  • [x] index
  • [x] pid
  • [x] time
  • [x] command
  • [x] name
• [x] --prefix-colors
• [x] --prefix-length
• [x] --timestamp-format
• [ ] --kill-others
• [ ] --kill-others-on-fail
• [x] --restart-tries
• [x] --restart-after

License

See LICENSE file.