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https://github.com/dixonwille/skywalker

A package to allow one to concurrently go through a filesystem with ease
https://github.com/dixonwille/skywalker

awesome-go concurrency filesystem golang golang-package

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A package to allow one to concurrently go through a filesystem with ease

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# skywalker [![GoDoc](https://godoc.org/github.com/dixonwille/skywalker?status.svg)](https://godoc.org/github.com/dixonwille/skywalker) [![Build Status](https://travis-ci.org/dixonwille/skywalker.svg?branch=master)](https://travis-ci.org/dixonwille/skywalker) [![Build status](https://ci.appveyor.com/api/projects/status/d1h7lpf0pv546amh?svg=true)](https://ci.appveyor.com/project/dixonwille/skywalker) [![codecov](https://codecov.io/gh/dixonwille/skywalker/branch/master/graph/badge.svg)](https://codecov.io/gh/dixonwille/skywalker) [![Go Report Card](https://goreportcard.com/badge/github.com/dixonwille/skywalker)](https://goreportcard.com/report/github.com/dixonwille/skywalker)

Skywalker is a package to allow one to concurrently go through a filesystem with ease.

## Features

- Concurrency
- BlackList filtering
- WhiteList filtering
- Filter by Directory
- Filter by Extension
- Glob Filtering (provided by [gobwas/glob](https://github.com/gobwas/glob))

> For matching to work properly across platforms. Please use `/`. In [gobwas/glob](https://github.com/gobwas/glob) the `\` is an escape character (so you can escape `*`, `?`, etc...) making it difficult to know if you want to escape a character or go into directory.

## Example

```go
package main

import (
"fmt"
"sort"
"strings"
"sync"

"github.com/dixonwille/skywalker"
)

type ExampleWorker struct {
*sync.Mutex
found []string
}

func (ew *ExampleWorker) Work(path string) {
//This is where the necessary work should be done.
//This will get concurrently so make sure it is thread safe if you need info across threads.
ew.Lock()
defer ew.Unlock()
ew.found = append(ew.found, path)
}

func main() {
//Following two functions are only to create and destroy data for the example
defer teardownData()
standupData()

ew := new(ExampleWorker)
ew.Mutex = new(sync.Mutex)

//root is the root directory of the data that was stood up above
sw := skywalker.New(root, ew)
sw.DirListType = skywalker.LTBlacklist
sw.DirList = []string{"sub"}
sw.ExtListType = skywalker.LTWhitelist
sw.ExtList = []string{".pdf"}
err := sw.Walk()
if err != nil {
fmt.Println(err)
return
}
sort.Sort(sort.StringSlice(ew.found))
for _, f := range ew.found {
fmt.Println(strings.Replace(f, sw.Root, "", 1))
}
}
```