terraform/config/module/detect_file.go

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package module
import (
"fmt"
"path/filepath"
"runtime"
)
// FileDetector implements Detector to detect file paths.
type FileDetector struct{}
func (d *FileDetector) Detect(src, pwd string) (string, bool, error) {
if len(src) == 0 {
return "", false, nil
}
if !filepath.IsAbs(src) {
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if pwd == "" {
return "", true, fmt.Errorf(
"relative paths require a module with a pwd")
}
src = filepath.Join(pwd, src)
}
return fmtFileURL(src), true, nil
}
func fmtFileURL(path string) string {
if runtime.GOOS == "windows" {
// Make sure we're using "/" on Windows. URLs are "/"-based.
path = filepath.ToSlash(path)
return fmt.Sprintf("file://%s", path)
}
// Make sure that we don't start with "/" since we add that below.
if path[0] == '/' {
path = path[1:]
}
return fmt.Sprintf("file:///%s", path)
}