README.md

# Coca

[![Build Status](https://travis-ci.org/phodal/coca.svg?branch=master)](https://travis-ci.org/phodal/coca)
[![Maintainability](https://api.codeclimate.com/v1/badges/d5a5e060522403b1f79b/maintainability)](https://codeclimate.com/github/phodal/coca/maintainability)
[![codecov](https://codecov.io/gh/phodal/coca/branch/master/graph/badge.svg)](https://codecov.io/gh/phodal/coca)

> Coca 是一个用于遗留系统重构的瑞士军刀。它可以分析代码中的 badsmell，行数统计，分析调用与依赖，进行 Git 分析，以及自动化重构等。

重构的四级模型:

 - **分层架构重构**。 在不改变业务逻辑的情况下，进代码架构进行调整。即根据单一职责和依赖倒置原则的思想，对系统进行模块拆分与合并，以明确职责降低耦合度；对包进行重新规划，划分包之间的边界，减少代码间的耦合。
 - **模式重构**。针对特定模式的坏味道，采用设计模式来提升可扩展性，增加可读性。
 - **模型重构**。在包含测试的情况下，通过识别和发现模型的行为，将行为聚合到模型中。
 - **微重构**/**代码重构**。对于代码中的坏味道，可以通过 IDE 重构来快速改善即有代码，而不会影响到业务功能。

## Usage

install 

```bash
go get -u github.com/phodal/coca
```

help:

```bash
Usage:
  coca [command]


Available Commands:
  analysis    analysis package
  api         scan api
  bs          bad smell analysis
  call        call graph api
  cloc        cloc [FILE or DIRECTORY]
  concept     concept api
  count       count code
  evaluate    evaluate refactor effort
  git         git analysis
  help        Help about any command
  rcall       reverse call
  refactor    auto refactor code

```

### Analysis

```
coca analysis
```

### Find Bad Smells

```bash
coca bs -s type
```

Examples Result:

```json
{
   "dataClass": [
      {
         "File": "examples/api/BookController.java",
         "BS": "dataClass"
      }
      ...
   ],
   "lazyElement": [
      {
         "File": "examples/api/model/BookRepresentaion.java",
         "BS": "lazyElement"
      }
      ...
   ]
}
```

### Code Line Count

```
coca cloc
```

Results:

```
───────────────────────────────────────────────────────────────────────────────
Language                 Files     Lines   Blanks  Comments     Code Complexity
───────────────────────────────────────────────────────────────────────────────
Go                          58     31763     7132       890    23741       2847
Java                        44       971      208        21      742         62
Markdown                     8       238       75         0      163          0
Gherkin Specificati…         2        32        2        16       14          0
Document Type Defin…         1       293       36         0      257          0
License                      1       201       32         0      169          0
SQL                          1         2        0         0        2          0
SVG                          1       199        0        34      165          0
Shell                        1         3        1         1        1          0
XML                          1        13        0         0       13          0
gitignore                    1        61        8         4       49          0
───────────────────────────────────────────────────────────────────────────────
Total                      119     33776     7494       966    25316       2909
───────────────────────────────────────────────────────────────────────────────
Estimated Cost to Develop $803,822
Estimated Schedule Effort 14.120551 months
Estimated People Required 6.743156
───────────────────────────────────────────────────────────────────────────────
```

Results to json

```
coca cloc --by-file --format json
```

### Build Deps Tree

```
coca call -c com.phodal.pholedge.book.BookController.createBook -r com.phodal.pholedge.
```

Examples Results:

![Call Demo](docs/sample/call_demo.svg)

### Identify Spring API

```
coca api -f
```

![API Demo](docs/sample/api.svg)

With Count

```
coca api -r com.phodal.pholedge. -c 
``` 

or multi package:

`coca api  -r com.macro.mall.demo.controller.,com.zheng.cms.admin.,com.phodal.pholedge -c` 

```bash
+------+--------+------------------------------------------------+------------------------------------------------------------------------+
| SIZE | METHOD |                      URI                       |                                 CALLER                                 |
+------+--------+------------------------------------------------+------------------------------------------------------------------------+
|   36 | GET    | /aliyun/oss/policy                             | controller.OssController.policy                                        |
|   21 | POST   | /aliyun/osscallback                            | controller.OssController.callback                                      |
|   17 | GET    | /subject/list                                  | controller.CmsSubjectController.getList                                |
|   17 | GET    | /esProduct/search                              | search.controller.EsProductController.search                           |
|   17 | GET    | /order/list                                    | controller.OmsOrderController.list                                     |
|   17 | GET    | /productAttribute/list/{cid}                   | controller.PmsProductAttributeController.getList                       |
|   17 | GET    | /productCategory/list/{parentId}               | controller.PmsProductCategoryController.getList                        |
|   17 | GET    | /brand/list                                    | controller.PmsBrandController.getList                                  |
|   17 | GET    | /esProduct/search/simple                       | search.controller.EsProductController.search                           |
+------+--------+------------------------------------------------+------------------------------------------------------------------------+
```

### Git Analysis

```
coca git -t
```

Results: 

```bash
+---------------------------------------------------------------------------------------------------------------------+-----------+-------------+
|                                                     ENTITYNAME                                                      | REVSCOUNT | AUTHORCOUNT |
+---------------------------------------------------------------------------------------------------------------------+-----------+-------------+
| build.gradle                                                                                                        |      1326 |          36 |
| src/asciidoc/index.adoc                                                                                             |       239 |          20 |
| build-spring-framework/resources/changelog.txt                                                                      |       187 |          10 |
| spring-core/src/main/java/org/springframework/core/annotation/AnnotationUtils.java                                  |       170 |          10 |
| spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java                |       159 |          15 |
| src/docs/asciidoc/web/webmvc.adoc                                                                                   |       121 |          24 |
| spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassParser.java                   |       118 |           9 |
| src/dist/changelog.txt                                                                                              |       118 |           9 |
| spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.java       |       116 |          15 |
| spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java        |       113 |          15 |
| spring-web/src/main/java/org/springframework/http/HttpHeaders.java                                                  |       111 |          18 |
| src/docs/asciidoc/web/webflux.adoc                                                                                  |       108 |          21 |
| spring-core/src/main/java/org/springframework/core/annotation/AnnotatedElementUtils.java                            |       107 |           9 |
| spring-test/spring-test.gradle                                                                                      |       105 |           7 |
| spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/RequestMappingHandlerAdapter.java |       105 |          13 |
| spring-messaging/src/main/java/org/springframework/messaging/simp/stomp/StompBrokerRelayMessageHandler.java         |       101 |          12 |
| spring-web/src/main/java/org/springframework/web/client/RestTemplate.java                                           |        98 |          17 |
| spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java                |        96 |          14 |
| org.springframework.core/src/main/java/org/springframework/core/convert/TypeDescriptor.java                         |        93 |           4 |
| spring-core/src/main/java/org/springframework/core/ResolvableType.java                                              |        92 |          10 |
+---------------------------------------------------------------------------------------------------------------------+-----------+-------------+
```

### Concept Analyser

```
coca concept
```

Results Examples:

```
+------------------+--------+
|      WORDS       | COUNTS |
+------------------+--------+
| context          |    590 |
| resolve          |    531 |
| path             |    501 |
| content          |    423 |
| code             |    416 |
| resource         |    373 |
| property         |    372 |
| session          |    364 |
| attribute        |    349 |
| properties       |    343 |
| headers          |    330 |
+------------------+--------+
```

### Count Refs

```
coca count
```

Results:

```
+------------+--------------------------------------------------------------------------+
| REFS COUNT |                                  METHOD                                  |
+------------+--------------------------------------------------------------------------+
|          2 | com.phodal.pholedge.book.BookRepository.byId                             |
|          2 | com.phodal.pholedge.book.model.Book.toRepresentation                     |
|          2 | com.phodal.pholedge.book.BookRepository.save                             |
|          2 | com.phodal.coca.analysis.JavaCallApp.parse                               |
|          2 | com.phodal.pholedge.book.BookRepository.save                             |
|          2 | com.phodal.coca.analysis.JavaCallApp.parse                               |
|          1 | com.phodal.pholedge.book.model.Book.save                                 |
|          1 | evolution.analysis.jv.calls.JavaCallVisitor.parseNewType                 |
|          1 | evolution.analysis.jv.calls.JavaCallVisitor.isNotSpecialNewWord          |
|          1 | com.phodal.pholedge.book.BookMapper.byId                                 |
|          1 | com.phodal.pholedge.book.BookService.updateBook                          |
|          1 | com.phodal.pholedge.book.BookService.getBooksLists                       |
|          1 | com.phodal.pholedge.book.BookService.getBookById                         |
|          1 | com.phodal.pholedge.book.BookMapper.doSave                               |
|          1 | com.phodal.pholedge.book.BookMapper.list                                 |
|          1 | com.phodal.pholedge.book.BookService.createBook                          |
|          1 | com.phodal.pholedge.book.BookFactory.create                              |
|          1 | com.phodal.pholedge.book.BookRepository.list                             |
|          1 | com.phodal.pholedge.book.model.Book.create                               |
+------------+--------------------------------------------------------------------------+
```

### Reverse Call Graph

```
coca rcall -c org.bytedeco.javacpp.tools.TokenIndexer.get
```

Results:

```
digraph G { 
edge [dir="back"];

"org.bytedeco.javacpp.tools.Parser.extern" -> "org.bytedeco.javacpp.tools.Parser.declarations";
"org.bytedeco.javacpp.tools.Parser.declarations" -> "org.bytedeco.javacpp.tools.Parser.extern";
...
}
```

![RCall Demo](docs/sample/rcall.svg)

### Auto Refactor

support: 

 - rename
 - move
 - remove unused import
 - remove unused class

```
coca refactor -R rename.coca -p src/main
coca refactor -m move.config -p .
```

## Dev

Install Go

```bash
brew install go
```

Env

```bash
export GOROOT=/usr/local/opt/go/libexec
export GOPATH=$HOME/.go
export PATH=$PATH:$GOROOT/bin:$GOPATH/bin
```

clone

```
go get https://github.com/phodal/coca
```

Test Frameworks

```
go get github.com/onsi/ginkgo
go get github.com/onsi/gomega
```

License
---

[![Phodal's Idea](http://brand.phodal.com/shields/idea-small.svg)](http://ideas.phodal.com/)

@ 2019 A [Phodal Huang](https://www.phodal.com)'s [Idea](http://github.com/phodal/ideas).  This code is distributed under the MPL license. See `LICENSE` in this directory.