/
files.go
117 lines (102 loc) · 2.7 KB
/
files.go
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// This file is part of OpenRansim.
//
// Foobar is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Foobar is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"fmt"
"github.com/spf13/cobra"
"io/ioutil"
"os"
)
var pwd, _ = os.Getwd()
var FilesCmd = &cobra.Command{
Use: "files",
Short: "List files, write over their, update, remove...",
Long: `List files, write over their, update, remove...`,
RunE: func(cmd *cobra.Command, args []string) error {
go create_folder("TestDirectory")
go create_files("TestDirectory", 50)
return nil
},
}
func create_folder(folderName string) {
pwd, _ := os.Getwd()
path := pwd + "/" + folderName
if folder_exists(path) == false {
os.MkdirAll(pwd+"/"+folderName, os.ModePerm)
fmt.Println("Folder created: " + folderName)
} else {
fmt.Println("Folder was previous created: " + folderName)
}
}
func folder_exists(path string) bool {
_, err := os.Stat(path)
if err == nil {
return true
}
if os.IsNotExist(err) {
return false
}
return true
}
func create_files(folderName string, num_files int) {
fmt.Print("Creating random files")
num := 1
for ; num <= num_files; num++ {
f, err := os.Create(fmt.Sprintf(pwd+"/%s/%d", folderName, num))
check(err)
defer f.Close()
_, err = f.WriteString(rand_string(num * 142))
check(err)
f.Sync()
fmt.Print(".")
}
fmt.Println("")
}
func rand_string(n int) string {
b := make([]byte, n)
// A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
if remain == 0 {
cache, remain = src.Int63(), letterIdxMax
}
if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
b[i] = letterBytes[idx]
i--
}
cache >>= letterIdxBits
remain--
}
return string(b)
}
func get_files(folder string) []os.FileInfo {
files, err := ioutil.ReadDir(folder)
check(err)
return files
}
func write_to_file(data, file string) {
ioutil.WriteFile(file, []byte(data), 777)
}
func read_from_file(file string) ([]byte, error) {
data, err := ioutil.ReadFile(file)
return data, err
}
func remove(path string) {
err := os.Remove(path)
check(err)
}
func remove_all(path string) {
err := os.RemoveAll(path)
check(err)
}