fix: check if files are same in self-update (#2132)

Cargo.toml

@@ -64,6 +64,7 @@ reqwest-middleware = "0.3.0"
 reqwest-retry = "0.5.0"
 rlimit = "0.10.1"
 rstest = "0.19.0"
+same-file = "1.0.6"
 self-replace = "1.3.7"
 serde = "1.0.198"
 serde-untagged = "0.1.5"
@@ -245,6 +246,7 @@ reqwest = { workspace = true, features = [
 ] }
 reqwest-middleware = { workspace = true }
 rlimit = { workspace = true }
+same-file = { workspace = true }
 self-replace = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }

src/cli/self_update.rs

@@ -252,9 +252,9 @@ fn default_pixi_binary_path() -> std::path::PathBuf {
 
 // check current binary is in the default pixi location
 fn is_pixi_binary_default_location() -> bool {
-    let default_binary_path = default_pixi_binary_path();
-
-    std::env::current_exe()
-        .expect("Failed to retrieve the current pixi binary path")
-        .starts_with(default_binary_path)
+    same_file::is_same_file(
+        std::env::current_exe().expect("Failed to retrieve the current pixi binary path"),
+        default_pixi_binary_path(),
+    )
+    .unwrap_or(false)
 }