Don't normalize commands

CHANGELOG.md

@@ -9,6 +9,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - New method `Toolchain::remove_component`
 
+### Fixed
+
+- When passed a global command with the same name as a file in the current directory,
+  Rustwide will now execute the global command instead of the file.
+
 ## [0.8.0] - 2020-06-05
 
 ### Added

src/cmd/mod.rs

@@ -370,19 +370,22 @@ impl<'w, 'pl> Command<'w, 'pl> {
             )
         } else {
             let (binary, managed_by_rustwide) = match self.binary {
+                // global paths should never be normalized
                 Binary::Global(path) => (path, false),
-                Binary::ManagedByRustwide(path) => (
-                    self.workspace
+                Binary::ManagedByRustwide(path) => {
+                    let binary = self
+                        .workspace
                         .expect("calling rustwide bins without a workspace is not supported")
                         .cargo_home()
                         .join("bin")
-                        .join(exe_suffix(path.as_os_str())),
-                    true,
-                ),
+                        .join(exe_suffix(path.as_os_str()));
+                    // `cargo_home()` might a relative path
+                    (crate::utils::normalize_path(&binary), true)
+                }
                 Binary::__NonExaustive => panic!("do not create __NonExaustive variants manually"),
             };
-            let mut cmd = AsyncCommand::new(crate::utils::normalize_path(&binary));
 
+            let mut cmd = AsyncCommand::new(&binary);
             cmd.args(&self.args);
 
             if managed_by_rustwide {

tests/issue_30.rs

@@ -0,0 +1,17 @@
+use failure::Error;
+use rustwide::cmd::Command;
+
+mod utils;
+
+#[test]
+fn run_binary_with_same_name_as_file() -> Result<(), Error> {
+    use std::fs;
+
+    let tmpdir = tempfile::tempdir()?;
+    std::env::set_current_dir(&tmpdir)?;
+    fs::write("true", b"foobar")?;
+    let workspace = crate::utils::init_workspace()?;
+    Command::new(&workspace, "true").run()?;
+
+    Ok(())
+}