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fileutils.go
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/
fileutils.go
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package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
)
// This file contains functions that are wrappers around
// standard library file mainpulation function which do
// all error checking
// Check if file/dir exists,
func checkFile(file string) bool {
_, err := os.Stat(file)
if os.IsNotExist(err) {
return false
}
if !os.IsNotExist(err) && err != nil {
panic(err)
}
return true
}
// Check if dir exists, make it if it doesn't.
func readyDir(dir string) error {
_, err := os.Stat(dir)
if os.IsNotExist(err) {
fmt.Println(dir, "does not exist, creating...")
os.MkdirAll(dir, 0755)
}
if !os.IsNotExist(err) && err != nil {
return err
}
return nil
}
// Load JSON from file
func loadJSONFromFile(file string, dest interface{}) error {
cachedFile, err := os.Open(file)
if err != nil {
return err
}
stuff, err := ioutil.ReadAll(cachedFile)
if err != nil {
return err
}
if err = json.Unmarshal(stuff, dest); err != nil {
return err
}
//if _, iserr := err.(*json.SyntaxError); iserr {
// return err
//}
return nil
}