shard-ameba/README.md
Vitalii Elenhaupt 319a90d5d7
Add version to shards.yml in usage
If the version is missed, shards utilite takes the latest
release which can break the build if the user is not ready
to upgrade
2018-05-14 16:28:46 +03:00

127 lines
3.6 KiB
Markdown

<p align="center">
<img src="https://gitcdn.link/repo/veelenga/bin/master/ameba/logo.png" width="200">
<h3 align="center">Ameba</h3>
<p align="center">Code style linter for Crystal<p>
<p align="center">
<sup>
<i> (a single-celled animal that catches food and moves about by extending fingerlike projections of protoplasm) </i>
</sup>
</p>
<p align="center">
<a href="https://travis-ci.org/veelenga/ameba"><img src="https://travis-ci.org/veelenga/ameba.svg?branch=master"></a>
<a href="https://github.com/veelenga/ameba/releases"><img src="https://img.shields.io/github/release/veelenga/ameba.svg?maxAge=360"></a>
<a href="https://shards.rocks/badge/github/veelenga/ameba"><img src="https://shards.rocks/badge/github/veelenga/ameba/status.svg"></a>
<a href="https://github.com/veelenga/ameba/blob/master/LICENSE"><img src="https://img.shields.io/github/license/veelenga/ameba.svg"></a>
<a href="https://gitter.im/veelenga/ameba?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge"><img src="https://badges.gitter.im/veelenga/ameba.svg"></a>
</p>
</p>
## About
Ameba is a static code analysis tool for the Crystal language.
It enforces a consistent [Crystal code style](https://crystal-lang.org/docs/conventions/coding_style.html),
also catches code smells and wrong code constructions.
See also [Roadmap](https://github.com/veelenga/ameba/wiki).
## Usage
Run `ameba` binary within your project directory to catch code issues:
```sh
$ ameba
Inspecting 107 files.
...............F.....................F....................................................................
src/ameba/rule/unneeded_disable_directive.cr:29:7
UselessAssign: Useless assignment to variable `s`
src/ameba/formatter/flycheck_formatter.cr:5:21
UnusedArgument: Unused argument `location`
Finished in 248.9 milliseconds
107 inspected, 2 failures.
```
## Installation
### As a project dependency:
Add this to your application's `shard.yml`:
```yaml
development_dependencies:
ameba:
github: veelenga/ameba
version: 0.6.0
```
Build `bin/ameba` binary within your project directory while running `shards install`.
You may also want to use it on [Travis](travis-ci.org):
```yaml
# .travis.yml
language: crystal
install:
- shards install
script:
- crystal spec
- bin/ameba
```
Using this config Ameba will inspect files just after the specs run. Travis will also fail
the build if some problems detected.
### OS X
```sh
$ brew tap veelenga/tap
$ brew install ameba
```
### From sources
```sh
$ git clone https://github.com/veelenga/ameba && cd ameba
$ make install
```
## Configuration
Default configuration file is `.ameba.yml`.
It allows to configure rule properties, disable specific rules and exclude sources from the rules.
Generate new file by running `ameba --gen-config`.
### Inline disabling
One or more rules can be disabled using inline directives:
```crystal
# ameba:disable LargeNumbers
time = Time.epoch(1483859302)
time = Time.epoch(1483859302) # ameba:disable LargeNumbers
```
## Editor integration
* Vim: [vim-crystal](https://github.com/rhysd/vim-crystal) (via [Syntastic](https://github.com/vim-syntastic/syntastic))
* Emacs: [ameba.el](https://github.com/veelenga/ameba.el)
* Sublime Text: [Sublime Linter Ameba](https://github.com/epergo/SublimeLinter-contrib-ameba)
## Credits & inspirations
- [Crystal Language](crystal-lang.org)
- [Rubocop](http://rubocop.readthedocs.io/en/latest/)
- [Credo](http://credo-ci.org/)
- [Dogma](https://github.com/lpil/dogma)
## Contributors
- [veelenga](https://github.com/veelenga) Vitalii Elenhaupt - creator, maintainer