Neph

A modern command line job processor written in Crystal that can execute jobs concurrently. :rocket:
Neph can be substitute for make command. :rocket:

Neph is self-hosting. So after installing neph, try

> neph

at installed directory.

Installation

Cloning this project

git clone https://github.com/tbrand/neph

Compile

> cd neph
> shards build --release

Now executable binary is at neph/bin/neph.

Usage

Put neph.yml at root of your project

main:
  command:
    echo "Hello Neph!"

Execute neph

> neph

STDOUT and STDERR logs are located at .neph/log/[job_name]/*

Options

You can specify job name by -j. In neph.yml,

hello:
  command:
    echo "Hello!"

Then,

> neph -j hello

To see other usages, use --help option

> neph --help

neph.yml

You can define dependencies between jobs like this

main:
  command:
    echo "Main!"
  depends_on:
    - hello
hello:
  command:
    echo "Hello!"

Here main job depends on hello. So when you execute neph, hello job is triggered before the execution of the main job.

You can ignore errors by ignore_error: true

main:
  command:
    echo "Main!"
  depends_on:
    - hello
hello:
  command:
    hogehoge
  ignore_error:
    true

In this jobs, hello job will raise an error since hogehoge command doesn't exist. But main job will be triggered by ignoring the error.

You can specify sources by sources: for the jobs like make command.

main:
  command:
    echo "Main!"
  depends_on:
    - hello
  sources:
    - src/test.c
hello:
  command:
    hogehoge
  ignore_error:
    true

If the sources are not updated, the job will be skipped.

See sample for details.

Used

Neph is used in which_is_the_fastest. In which_is_the_fastest, building time is reduced from 102[sec] to 33[sec]. neph.yml is here.

Contributing

1. Fork it ( https://github.com/tbrand/neph/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• tbrand Taichiro Suzuki - creator, maintainer