Create helix-stdx crate for stdlib extensions

helix-stdx is meant to carry extensions to the stdlib or low-level
dependencies that are useful in all other crates. This commit starts
with all of the path functions from helix-core and the CWD tracking that
lived in helix-loader.

The CWD tracking in helix-loader was previously unable to call the
canonicalization functions in helix-core. Switching to our custom
canonicalization code should make no noticeable difference though
since `std::env::current_dir` returns a canonicalized path with
symlinks resolved (at least on unix).

1 files changed, 2 insertions, 2 deletions

diff --git a/helix-term/src/ui/mod.rs b/helix-term/src/ui/mod.rs
index 660bbfea..efa2473e 100644
--- a/helix-term/src/ui/mod.rs
+++ b/helix-term/src/ui/mod.rs
@@ -409,7 +409,7 @@ pub mod completers {
         use std::path::Path;
 
         let is_tilde = input == "~";
-        let path = helix_core::path::expand_tilde(Path::new(input));
+        let path = helix_stdx::path::expand_tilde(Path::new(input));
 
         let (dir, file_name) = if input.ends_with(std::path::MAIN_SEPARATOR) {
             (path, None)
@@ -430,7 +430,7 @@ pub mod completers {
                 match path.parent() {
                     Some(path) if !path.as_os_str().is_empty() => path.to_path_buf(),
                     // Path::new("h")'s parent is Some("")...
-                    _ => helix_loader::current_working_dir(),
+                    _ => helix_stdx::env::current_working_dir(),
                 }
             };