Re-export `which` from `helix-stdx::env`

We use `which::which` in many crates, so `which` was a separate
dependency across all of them. We can centralize `which` into the
stdx crate so it's easy for all crates to depend on it.

I also moved the rest of `helix-view/src/env.rs` into helix-stdx's
`env` module since it only contained a thin wrapper around `which`
and `std::env`.

1 files changed, 6 insertions, 1 deletions

diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs
index 388810b1..88653948 100644
--- a/helix-view/src/document.rs
+++ b/helix-view/src/document.rs
@@ -726,7 +726,12 @@ impl Document {
         if let Some((fmt_cmd, fmt_args)) = self
             .language_config()
             .and_then(|c| c.formatter.as_ref())
-            .and_then(|formatter| Some((which::which(&formatter.command).ok()?, &formatter.args)))
+            .and_then(|formatter| {
+                Some((
+                    helix_stdx::env::which(&formatter.command).ok()?,
+                    &formatter.args,
+                ))
+            })
         {
             use std::process::Stdio;
             let text = self.text().clone();