lucid

A simple mock-application that can be used by other programs that work with child processes.

lucid is similar to sleep, but has a few additional features that can be helpful when debugging applications that spawn subprocesses.

Demo

lucid demo

Introduction

Applications or scripts that handle child processes need to deal with a lot of different scenarios.

There are really simple processes that successfully terminate after a short period of time: bash lucid 2

Others also finish after some time, but fail with a non-zero exit code: bash lucid 3 --exit-code=1

Some processes just run forever (but can be terminated via SIGINT or SIGTERM): bash lucid

Others refuse to handle termination signals properly and just ignore them: bash lucid 10 --no-interrupt

There are also processes that choose to daemonize themselves immediately: bash lucid 10 --daemon

Many processes print a lot on standard output: bash lucid 10 --verbose

While some others might generate error messages: bash lucid 10 --stderr --verbose

Usage

``` USAGE: lucid [OPTIONS] [duration]

OPTIONS: -c, --exit-code Terminate with the given exit code [default: 0] -d, --daemon Daemonize the process after launching -I, --no-interrupt Do not terminate when receiving SIGINT/SIGTERM signals -p, --prefix Prefix all messages with the given string [default: lucid] -v, --verbose Be noisy -q, --quiet Do not output anything -e, --stderr Print all messages to stderr -h, --help Prints help information -V, --version Prints version information



ARGS:
        Sleep time in seconds. If no duration is given, the process will sleep forever.
```

Installation


cargo install lucid