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package datafs
import (
"net/url"
"strings"
)
// SplitFSMuxURL splits a URL into a filesystem URL and a relative file path
func SplitFSMuxURL(in *url.URL) (*url.URL, string) {
u := *in
// git URLs are special - they have double-slashes that separate a repo
// from a path in the repo. A missing double-slash means the path is the
// root.
switch u.Scheme {
case "git", "git+file", "git+http", "git+https", "git+ssh":
repo, base, _ := strings.Cut(u.Path, "//")
u.Path = repo
if base == "" {
base = "."
}
return &u, base
case "aws+sm":
// An aws+sm URL can either be opaque or have a path with a leading
// slash. If it's opaque, the URL must not contain a leading slash. If
// it has a path, the URL must begin with a slash.
if u.Opaque != "" {
return &url.URL{Scheme: u.Scheme}, u.Opaque
}
return &url.URL{Scheme: u.Scheme, Path: "/"}, strings.TrimLeft(u.Path, "/")
}
// trim leading and trailing slashes - they are not part of a valid path
// according to [io/fs.ValidPath]
base := strings.Trim(u.Path, "/")
if base == "" && u.Opaque != "" {
base = u.Opaque
u.Opaque = ""
}
if base == "" {
base = "."
}
u.Path = "/"
return &u, base
}
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