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A cli tool to find TODO tasks in golang packages. Can also be deployed as an API server

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thomasxnguy/todofinder

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TodoFinder

todofinder is a tool that search for comment containing a specific key pattern such as "TODO" or "FIXME" in golang packages, and display results to the end-user with essential informations (files name, lines, comments)

The tool has two execution mode :

  • search mode : results are display in console stdout. It is the mode by default
  • server mode : service run as an API server on port 8080 by default
$ go run todofinder/cmd/todofinder.go -package fmt -pattern TODO 
/usr/local/go/src/fmt/scan.go : 740 :
TODO: accept N and Ni independently?

Installation

The project uses "dep", a prototype dependency management tool for Go. For more information, please visit https://github.com/golang/dep

% go get -u github.com/thomasxnguy/todofinder
% dep ensure (for Golang v1.9+)

Usage

$ todofinder -h
usage: todofinder <command>
The commands are:
   search - run in command line  (*default)
   server - run in server mode

search [-package input_package_name] [-pattern input_search_pattern]
  -package string
       package to search
  -pattern string
       patttern to search

Command Line mode

$ go run todofinder/cmd/todofinder.go -h

or

$ go run todofinder/cmd/todofinder.go search -h
Usage of search:
  -package string
       package to search
  -pattern string
       patttern to search

Example

$ go run todofinder/cmd/todofinder.go -package fmt -pattern TODO 
/usr/local/go/src/fmt/scan.go : 740 :
TODO: accept N and Ni independently?

Server mode

$ go run todofinder/cmd/todofinder.go server -h
Usage of server:
  -config string
    	configuration file path

Run in server mode

$ go run todofinder/cmd/todofinder.go server -config todofinder/conf/todofinder.yaml

The application runs as an HTTP server at port 8080 (default). It provides the following RESTful endpoints:

  • GET /search: search a specific pattern in all .go file from a package
Example API request
$ go run todofinder/cmd/todofinder.go server -config todofinder/conf/todofinder.yaml &
$ curl -XGET 'localhost:8080/search?package=fmt&pattern=TODO'
{
    "result": [
        {
            "file": "/usr/local/Cellar/go/1.6.3/libexec/src/fmt/format.go",
            "pos": 332,
            "com": "TODO: Avoid buffer by pre-padding.\n"
        },
        {
            "file": "/usr/local/Cellar/go/1.6.3/libexec/src/fmt/scan.go",
            "pos": 747,
            "com": "TODO: accept N and Ni independently?\n"
        }
    ]
}

API Error codes
Error Code Description
NOT_FOUND Resource was not found
METHOD_NOT_ALLOWED Call endpoint using a not supported method
INTERNAL_SERVER_ERROR An issue occurred server side
UNAUTHORIZED User is not authorized to call this resource
BAD_PARAMETER Call endpoint using a bad or missing parameter
PACKAGE_NOT_FOUND Cannot find the package to search on
NO_SOURCE The package does not contain valid source
SOURCE_NOT_READABLE The package .go source files are not readable

Packages

This service uses the following Go packages which can be easily replaced with your own favorite :

  • FastHttp : Lightweight http server which is 10x faster than net/http. Benchmark and source are here
  • Logrus : Structured logger for Go here
  • Gingko/Gomega : BDD Testing framework for golang here
  • Viper : Configuration solution for golang that can handle all types of formats and support watcher here
  • Ozzo-Validation : Configurable and extensible data validator here
  • Dep : Go dependency management tool here

Integration tests and benchmarks

This project contains a folder 'itest' containing integration tests and benchmark for todofinder service. It needs

Benchmark result

Benchmark_WrongEndpoint-4    	  500000	      3467 ns/op
Benchmark_BadParameters-4    	  500000	      3632 ns/op
Benchmark_BadMethod-4        	 1000000	      2332 ns/op
Benchmark_SearchEndpoint-4   	  500000	      2569 ns/op

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A cli tool to find TODO tasks in golang packages. Can also be deployed as an API server

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