terraform/config/module/url_helper.go

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package module
import (
"fmt"
"net/url"
"path/filepath"
"runtime"
"strings"
)
func urlParse(rawURL string) (*url.URL, error) {
if runtime.GOOS == "windows" {
// Make sure we're using "/" on Windows. URLs are "/"-based.
rawURL = filepath.ToSlash(rawURL)
}
u, err := url.Parse(rawURL)
if err != nil {
return nil, err
}
if runtime.GOOS != "windows" {
return u, err
}
if len(rawURL) > 1 && rawURL[1] == ':' {
// Assume we're dealing with a drive letter file path on Windows.
// We need to adjust the URL Path for drive letter file paths
// because url.Parse("c:/users/user") yields URL Scheme = "c"
// and URL path = "/users/user".
u.Path = fmt.Sprintf("%s:%s", u.Scheme, u.Path)
u.Scheme = ""
}
if len(u.Host) > 1 && u.Host[1] == ':' && strings.HasPrefix(rawURL, "file://") {
// Assume we're dealing with a drive letter file path on Windows
// where the drive letter has been parsed into the URL Host.
u.Path = fmt.Sprintf("%s%s", u.Host, u.Path)
u.Host = ""
}
// Remove leading slash for absolute file paths on Windows.
// For example, url.Parse yields u.Path = "/C:/Users/user" for
// rawURL = "file:///C:/Users/user", which is an incorrect syntax.
if len(u.Path) > 2 && u.Path[0] == '/' && u.Path[2] == ':' {
u.Path = u.Path[1:]
}
return u, err
}
func fmtFileURL(path string) string {
if runtime.GOOS == "windows" {
// Make sure we're using "/" on Windows. URLs are "/"-based.
path = filepath.ToSlash(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)
}