fix: remove shims directory from PATH when executing shims (#2736)

A follow-up to #2735 which was missing some cases

docs/dev-tools/backends/vfox.md

@@ -3,8 +3,7 @@
 [Vfox](https://github.com/version-fox/vfox) plugins may be used in mise as an alternative for asdf
 plugins. On Windows, only vfox plugins are supported since asdf plugins require POSIX compatibility.
 
-The code for this is inside of the mise repository at [
-`./src/backend/vfox.rs`](https://github.com/jdx/mise/blob/main/src/backend/vfox.rs).
+The code for this is inside of the mise repository at [`./src/backend/vfox.rs`](https://github.com/jdx/mise/blob/main/src/backend/vfox.rs).
 
 ## Dependencies
 

src/cli/exec.rs

@@ -12,8 +12,8 @@ use crate::cli::args::ToolArg;
 #[cfg(any(test, windows))]
 use crate::cmd;
 use crate::config::Config;
+use crate::env;
 use crate::toolset::{InstallOptions, ToolsetBuilder};
-use crate::{dirs, env};
 
 /// Execute a command with tool(s) set
 ///
@@ -68,11 +68,7 @@ impl Exec {
         ts.notify_if_versions_missing();
 
         let (program, args) = parse_command(&env::SHELL, &self.command, &self.c);
-        let mut env = ts.env_with_path(&config)?;
-
-        if let Some(path) = self.remove_shims_from_path(env.get(&*env::PATH_KEY)) {
-            env.insert(env::PATH_KEY.to_string(), path);
-        }
+        let env = ts.env_with_path(&config)?;
 
         self.exec(program, args, env)
     }
@@ -134,27 +130,6 @@ impl Exec {
             None => Err(eyre!("command failed: terminated by signal")),
         }
     }
-
-    // remove the shims dir when using `mise x` since the tools will already be on PATH and shims won't
-    // be needed. This is to avoid shims from being called in a loop.
-    fn remove_shims_from_path(&self, path: Option<&String>) -> Option<String> {
-        if let Some(path) = path {
-            let paths = env::split_paths(path).filter(|p| {
-                p != *dirs::SHIMS
-                    && !p
-                        .canonicalize()
-                        .is_ok_and(|p| p == dirs::SHIMS.canonicalize().unwrap_or_default())
-            });
-            Some(
-                env::join_paths(paths)
-                    .unwrap()
-                    .to_string_lossy()
-                    .to_string(),
-            )
-        } else {
-            None
-        }
-    }
 }
 
 fn parse_command(

src/shims.rs

@@ -13,7 +13,8 @@ use rayon::prelude::*;
 
 use crate::backend::Backend;
 use crate::cli::exec::Exec;
-use crate::config::{Config, Settings};
+use crate::config::settings::SETTINGS;
+use crate::config::CONFIG;
 use crate::file::display_path;
 use crate::lock_file::LockFile;
 use crate::toolset::{ToolVersion, Toolset, ToolsetBuilder};
@@ -30,6 +31,7 @@ pub fn handle_shim() -> Result<()> {
     let args = env::ARGS.read().unwrap();
     trace!("shim[{bin_name}] args: {}", args.join(" "));
     let mut args: Vec<OsString> = args.iter().map(OsString::from).collect();
+    remove_shim_dir_from_path();
     args[0] = which_shim(&env::MISE_BIN_NAME)?.into();
     env::set_var("__MISE_SHIM", "1");
     let exec = Exec {
@@ -44,8 +46,7 @@ pub fn handle_shim() -> Result<()> {
 }
 
 fn which_shim(bin_name: &str) -> Result<PathBuf> {
-    let config = Config::try_get()?;
-    let mut ts = ToolsetBuilder::new().build(&config)?;
+    let mut ts = ToolsetBuilder::new().build(&CONFIG)?;
     if let Some((p, tv)) = ts.which(bin_name) {
         if let Some(bin) = p.which(&tv, bin_name)? {
             trace!(
@@ -55,8 +56,7 @@ fn which_shim(bin_name: &str) -> Result<PathBuf> {
             return Ok(bin);
         }
     }
-    let settings = Settings::try_get()?;
-    if settings.not_found_auto_install {
+    if SETTINGS.not_found_auto_install {
         for tv in ts.install_missing_bin(bin_name)?.unwrap_or_default() {
             let p = tv.get_backend();
             if let Some(bin) = p.which(&tv, bin_name)? {
@@ -280,6 +280,22 @@ fn make_shim(target: &Path, shim: &Path) -> Result<()> {
     Ok(())
 }
 
+/// prevent shims from being called in a loop
+fn remove_shim_dir_from_path() {
+    let path = env::var_os(&*env::PATH_KEY).unwrap_or_default();
+    let paths = env::split_paths(&path).filter(|p| {
+        p != *dirs::SHIMS
+            && !p
+                .canonicalize()
+                .is_ok_and(|p| p == dirs::SHIMS.canonicalize().unwrap_or_default())
+    });
+    let path = env::join_paths(paths)
+        .unwrap()
+        .to_string_lossy()
+        .to_string();
+    env::set_var(&*env::PATH_KEY, &path);
+}
+
 fn err_no_version_set(ts: Toolset, bin_name: &str, tvs: Vec<ToolVersion>) -> Result<PathBuf> {
     if tvs.is_empty() {
         bail!("{} is not a valid shim", bin_name);