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Fix to_file_path for relative paths with drive letters #442

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Fix to_file_path for relative paths with drive letters #442

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5 changes: 3 additions & 2 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2411,8 +2411,9 @@ fn file_url_segments_to_pathbuf_windows(host: Option<&str>, mut segments: str::S
}
}
let path = PathBuf::from(string);
debug_assert!(path.is_absolute(),
"to_file_path() failed to produce an absolute Path");
if !path.is_absolute() {
return Err(());
}
Ok(path)
}

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23 changes: 23 additions & 0 deletions tests/unit.rs
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Expand Up @@ -86,6 +86,29 @@ fn new_path_windows_fun() {
}
}

#[test]
fn to_file_path_for_relative_windows_paths() {
if cfg!(windows) {
let url = Url::parse("file://example.com/C:foo").unwrap();
assert!(url.to_file_path().is_ok());
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NB: unlike other tests, this is ok. I would think that it should be err as well, but std::Path disagrees with me and insists that \\exaple.com\C:foo is an absolute path. Is this a bug in stdlib maybe as well?

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@retep998 perhaps you know? Consider this program:

use std::path::PathBuf;

fn main() {
    let p1 = PathBuf::from(r"C:foo");
    let p2 = PathBuf::from(r"\\example.com\C:foo");
    println!("{} {}", p1.is_absolute(), p2.is_absolute());
}

It currently prints false true. Is this the correct behavior?

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C:foo is relative to the current directory for the C drive. \\example.com\C:foo is a UNC path which is absolute.

For more information on the types of paths... https://googleprojectzero.blogspot.com/2016/02/the-definitive-guide-on-win32-to-nt.html


let url = Url::parse("file://example.com/C:").unwrap();
assert!(url.to_file_path().is_err());

let url = Url::parse("file:///E:foo").unwrap();
assert!(url.to_file_path().is_err());

let url = Url::parse("file:///E:").unwrap();
assert!(url.to_file_path().is_err());

let url = Url::parse("file://localhost/C:foo").unwrap();
assert!(url.to_file_path().is_err());

let url = Url::parse("file://localhost/C:").unwrap();
assert!(url.to_file_path().is_err());
}
}


#[test]
fn new_directory_paths() {
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