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#observer_cli
[![Build Status](https://travis-ci.org/zhongwencool/observer_cli.svg?branch=master)](https://travis-ci.org/zhongwencool/observer_cli)
[![Hex.pm](https://img.shields.io/hexpm/v/observer_cli.svg)](http://hex.pm/packages/observer_cli)

Visualize Erlang/Elixir Nodes On The Command Line By Using [recon](https://github.com/ferd/recon).

[Animation Show](http://zhongwencool.github.io/observer_cli/).

##Goal
Minimal consumption.

Just look like [observer](http://www.erlang.org/doc/apps/observer/observer_ug.html), but in shell, 

you might think observer_cli would be more convenient than observer.

------------------
###Install
**Erlang**
```erlang
%% rebar.config
{deps, [observer_cli]}
```
**Elixir**
```ex
# mix.exs
   def deps do
     [{:observer_cli, "~> 1.1.0"}]
   end
   def application do
     [applications: [:observer_cli]]
  end
```
------------------
###Try In Shell

```bash
$ rebar3 shell
1> observer_cli:start().
```

###Escriptize
1. `rebar3 escriptize` to generate an escript executable containing the project's and its dependencies' BEAM files.

    Place script(`_build/default/bin/observer_cli`) anywhere in your path and use `observer_cli` command.
    
2. `observer_cli <TARGETNODE> <TARGETCOOKIE>` to monitor remote node. 
   
   :exclamation: **ensure obsever_cli application start on target node.**

----------------
### Process And System Information
 
![Top](http://7q5a9k.com1.z0.glb.clouddn.com/observer_cli_home_2015_12_26.jpg)

![Process](http://7q5a9k.com1.z0.glb.clouddn.com/observer_cli_process_20151226.jpg)

### ETS And System Information
![System](http://7q5a9k.com1.z0.glb.clouddn.com/observer_cli_system_20151226.jpg)

### Allocator Information
![Allocator](http://7q5a9k.com1.z0.glb.clouddn.com/observer_cli_allocate_20151226.jpg)

### Mnesia Information
![Mnesia](http://7q5a9k.com1.z0.glb.clouddn.com/observer_cli_db_20151226.jpg)

### Help Information
![Help](http://7q5a9k.com1.z0.glb.clouddn.com/observer_cli_help_20151226.jpg)

----------------
###Command

```erlang
> observer_cli:start().%% default refresh interval is 2000
> observer_cli:start(Node).
> observer_cli:start(Node, Cookie).
```

-------------------
###TODO
- [x] Processes Memory, Binary, Total Heap Size, Reductions Top.     
- [x] include System and Architecture, CPU's and Threads metrics  in observer's system 
- [x] Memory Allocators: std, ll, eheap, ets,fix, binary, driver.
- [x] ets include all metrics ets in observer's Table Viewer.
- [x] doc (keep simple)
- [x] remote node support
- [x] mneisa: table info by using mnesia:info, mnesia:system_info/1, 
- [ ] ~~Draw all application’s relations.~~
- [ ] ~~Trace Overview.~~ You should use recon_trace.

----------------
###Changelog

- 1.1.0
  - Support escript, `observer_cli <TARGETNODE> <COOKIE>`
  
- 1.0.9
  - Upgrade rebar3 to 3.3.3 for publish hex repo.
    
--------------------
###License
See the [LICENSE](https://github.com/zhongwencool/observer_cli/blob/master/LICENSE) file for license rights and limitations (MIT).