Update README

README.md

@@ -1,10 +1,17 @@
-# ![gitql](https://rawgit.com/gitql/gitql/master/gitql-logo.svg)
-
-[![Build Status](https://travis-ci.org/gitql/gitql.svg?branch=master)](https://travis-ci.org/gitql/gitql) [![codecov](https://codecov.io/gh/gitql/gitql/branch/master/graph/badge.svg)](https://codecov.io/gh/gitql/gitql) [![GoDoc](https://godoc.org/github.com/gitql/gitql?status.svg)](https://godoc.org/github.com/gitql/gitql)
-
-**gitql** is a SQL interface to Git repositories, written in Go.
-
-**WARNING: gitql is still in a very early stage of development. It is considered experimental.**
+<p align="center"> 
+  <img src="https://rawgit.com/gitql/gitql/master/gitql-logo.svg">
+</p>
+
+<p align="center"> 
+ <a href="https://codebeat.co/projects/gb.xjqchip.workers.dev-gitql-gitql"><img alt="codebeat badge" src="https://codebeat.co/badges/ff0a63ef-e1b1-4a8a-9662-8b2ae17718fa" /></a>
+
+ <a href="https://travis-ci.org/gitql/gitql"><img alt="Build Status" src="https://travis-ci.org/gitql/gitql.svg?branch=master" /></a>
+
+  <a href="https://codecov.io/gh/gitql/gitql"><img alt="codecov" src="https://codecov.io/gh/gitql/gitql/branch/master/graph/badge.svg" /></a>
+
+  <a href="https://godoc.org/github.com/gitql/gitql"><img alt="GoDoc" src="https://godoc.org/github.com/gitql/gitql?status.svg" /></a>
+</p>
+<a href="https://asciinema.org/a/102717?autoplay=1" target="_blank"><img src="https://asciinema.org/a/102717.png" width="979"/></a>
 
 ## Installation
 
@@ -13,15 +20,16 @@ the gitql binary.
 
 ## Usage
 
-```
+```bash
 Usage:
-  gitql [OPTIONS] <query | version>
+  gitql [OPTIONS] <query | shell | version>
 
 Help Options:
   -h, --help  Show this help message
 
 Available commands:
   query    Execute a SQL query a repository.
+  shell    Start an interactive session.
   version  Show the version information.
 ```
 
@@ -31,35 +39,58 @@ For example:
 $ cd my_git_repo
 $ gitql query 'SELECT hash, author_email, author_name FROM commits LIMIT 2;' 
 SELECT hash, author_email, author_name FROM commits LIMIT 2;
-+------------------------------------------+--------------------+---------------+
-|                   HASH                   |   AUTHOR EMAIL     |  AUTHOR NAME  |
-+------------------------------------------+--------------------+---------------+
-| 02e0aa0ef807d2ae4d02ecdbe37681db9e812544 | Santiago M. Mola   | [email protected] |
-| 034cb63f77f4a0d30d26dabb999d348be6640df7 | Antonio J. Navarro | [email protected] |
-+------------------------------------------+--------------------+---------------+
++------------------------------------------+---------------------+-----------------------+
+|                   HASH                   |    AUTHOR EMAIL     |      AUTHOR NAME      |
++------------------------------------------+---------------------+-----------------------+
+| 003dc36e0067b25333cb5d3a5ccc31fd028a1c83 | [email protected]       | Santiago M. Mola      |
+| 01ace9e4d144aaeb50eb630fed993375609bcf55 | [email protected]       | Antonio Navarro Perez |
++------------------------------------------+---------------------+-----------------------+
+```
+
+Also you can use the interactive shell like you usually do to explore tables in postgreSQL per example:
+
+```bash
+$ gitql shell
+
+           gitQL SHELL
+           -----------
+You must end your queries with ';'
+
+!> SELECT hash, author_email, author_name FROM commits LIMIT 2;
+
+--> Executing query: SELECT hash, author_email, author_name FROM commits LIMIT 2;
+
++------------------------------------------+---------------------+-----------------------+
+|                   HASH                   |    AUTHOR EMAIL     |      AUTHOR NAME      |
++------------------------------------------+---------------------+-----------------------+
+| 003dc36e0067b25333cb5d3a5ccc31fd028a1c83 | [email protected]       | Santiago M. Mola      |
+| 01ace9e4d144aaeb50eb630fed993375609bcf55 | [email protected]       | Antonio Navarro Perez |
++------------------------------------------+---------------------+-----------------------+
+!>  
 ```
 
 ## Tables
 
 gitql exposes the following tables:
 
-* commits (hash, author_name, author_email, author_time, comitter_name, comitter_email, comitter_time, message)
-* blobs (hash, size)
-* references (hash, name, is_branch, is_note, is_remote, is_tag, target)
-* tags (hash, name, tagger_email, tagger_name, tagger_when, message, target)
-* tree_entries (tree_hash, entry_hash, mode, name)
+|     Name     |                                               Columns                                               |
+|:------------:|:---------------------------------------------------------------------------------------------------:|
+|    commits   | hash, author_name, author_email, author_time, comitter_name, comitter_email, comitter_time, message |
+|     blobs    | hash, size                                                                                          |
+|  references  | hash,hash, name, is_branch, is_note, is_remote, is_tag, target                                      |
+|     tags     | hash, name, tagger_email, tagger_name, tagger_when, message, target                                 |
+| tree_entries | tree_hash, entry_hash, mode, name                                                                   |
 
 ## SQL syntax
 
-gitql supports a subset of the SQL standard, currently including:
+We are adding continuously more functionality to gitql. Actually we supports a subset of the SQL standard, currently including:
 
-* `SELECT`
-* `WHERE`
-* `ORDER BY` (with `ASC` and `DESC`)
-* `LIMIT`
-* `GROUP BY` (with `COUNT` and `FIRST`)
-* `SHOW TABLES`
-* `DESCRIBE TABLE`
+|                        |                                     Supported                                     |        Planned       |
+|:----------------------:|:---------------------------------------------------------------------------------:|:--------------------:|
+| Comparison expressions |                                !=, ==, >, <, >=,<=                                |                      |
+|  Grouping expressions  |                                    COUNT, FIRST                                   |    LAST, SUM, AVG    |
+|  Standard expressions  |                              ALIAS, LITERAL, STAR (*)                             |     LIKE, REGEXP     |
+|       Statements       | CROSS JOIN, DESCRIBE, FILTER (WHERE), GROUP BY, LIMIT, SELECT, SHOW TABLES, SORT  | more JOINS, DISTINCT |
 
 ## License