terraform/helper/pathorcontents/read.go

41 lines
874 B
Go

// Helpers for dealing with file paths and their contents
package pathorcontents
import (
"io/ioutil"
"os"
"github.com/mitchellh/go-homedir"
)
// If the argument is a path, Read loads it and returns the contents,
// otherwise the argument is assumed to be the desired contents and is simply
// returned.
//
// The boolean second return value can be called `wasPath` - it indicates if a
// path was detected and a file loaded.
func Read(poc string) (string, bool, error) {
if len(poc) == 0 {
return poc, false, nil
}
path := poc
if path[0] == '~' {
var err error
path, err = homedir.Expand(path)
if err != nil {
return path, true, err
}
}
if _, err := os.Stat(path); err == nil {
contents, err := ioutil.ReadFile(path)
if err != nil {
return string(contents), true, err
}
return string(contents), true, nil
}
return poc, false, nil
}