AOB-go_utils/arozdfs/main.go

package main

import (
    "fmt"
    "os"
)

func check(e error) {
    if e != nil {
        panic(e)
    }
}

func init() {
	setting, err := os.Create("setting.config")
	check(err)
	defer setting.Close()
	setting.WriteString("")
	setting.Sync()
}

func file_exists(filepath string) bool {
	if _, err := os.Stat(filepath); !os.IsNotExist(err) {
		return true
	}
	return false
}

func mkdir(filepath string){
	os.MkdirAll(filepath, os.ModePerm)
}

func file_put_contents(file string, data string) bool{
	f, err := os.Create(file)
	check(err)
	_, err = f.WriteString(data)
	defer f.Close()
	if (err != nil){
		return false
	}
	return true
}

func main() {
	//arozdfs implementation in Golang
	/*
	Supported commands:
	help --> show all the help information
	init --> initiate the arozdfs structure according to setup.config

	[Uploading to arozdfs commands]
	upload
	-infile <filename> --> declare the input file
	-storepath <pathname> --> Relative path from the arozdfs root
	-slice <filesize> --> declare the slicing filesize
	-push <clusterlist.config> --> push to a list of clusters and sync file index to other clusters

	[Download from arozdfs commands]
	download
	-outfile <file.index> --> rebuild a file from cluster storage to local drive
	
	[File Operations]
	remove <file.index> --> remove all chunks related to thie file index
	rename <file.index> <newfile.index> --> rename all records related to this file
	move <filepath/file.index> <newpath/file.index> --> move the file to a new path in index directory


	[System checking commands]
	checkfile <file.index> --> check if a file contains all chunks which has at least two copies of each chunks
	rebuild --> Check all files on the system and fix all chunks which has corrupted
	migrate <host-uuid> 

	*/
	for i, arg := range os.Args {
        // print index and value
        fmt.Println("item", i, "is", arg)
	}
	
	//Check if the required directory exists. If not, create it.
	if (!file_exists("chunks/")){
		mkdir("chunks/")
	}
	if (!file_exists("uploads/")){
		mkdir("uploads/")
	}
	file_put_contents("Hello World.txt","This is the content of the file.")

}