fix: use whoami for user/hostname queries again (#6311)

Cargo.lock

@@ -970,16 +970,6 @@ dependencies = [
  "version_check",
 ]
 
-[[package]]
-name = "gethostname"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc3655aa6818d65bc620d6911f05aa7b6aeb596291e1e9f79e52df85583d1e30"
-dependencies = [
- "rustix",
- "windows-targets 0.52.6",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.2.15"
@@ -2762,7 +2752,6 @@ dependencies = [
  "deelevate",
  "dirs 5.0.1",
  "dunce",
- "gethostname",
  "gix",
  "gix-features",
  "guess_host_triple",
@@ -2804,6 +2793,7 @@ dependencies = [
  "urlencoding",
  "versions",
  "which",
+ "whoami",
  "windows 0.58.0",
  "winres",
  "yaml-rust2",
@@ -3293,6 +3283,12 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasite"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8dad83b4f25e74f184f64c43b150b91efe7647395b42289f38e50566d82855b"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.95"
@@ -3360,6 +3356,16 @@ dependencies = [
  "winsafe",
 ]
 
+[[package]]
+name = "whoami"
+version = "1.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "372d5b87f58ec45c384ba03563b03544dc5fadc3983e434b286913f5b4a9bb6d"
+dependencies = [
+ "redox_syscall",
+ "wasite",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"

Cargo.toml

@@ -23,7 +23,7 @@ license = "ISC"
 readme = "README.md"
 repository = "https://github.com/starship/starship"
 # Note: MSRV is only intended as a hint, and only the latest version is officially supported in starship.
-rust-version = "1.74"
+rust-version = "1.76"
 description = """
 The minimal, blazing-fast, and infinitely customizable prompt for any shell! ☄🌌️
 """
@@ -47,7 +47,6 @@ clap = { version = "4.5.20", features = ["derive", "cargo", "unicode"] }
 clap_complete = "4.5.33"
 dirs = "5.0.1"
 dunce = "1.0.5"
-gethostname = "0.5.0"
 # default feature restriction addresses https://github.com/starship/starship/issues/4251
 gix = { version = "0.66.0", default-features = false, features = ["max-performance-safe", "revision"] }
 gix-features = { version = "0.38.2", optional = true }
@@ -88,6 +87,7 @@ unicode-width = "0.2.0"
 urlencoding = "2.1.3"
 versions = "6.3.2"
 which = "6.0.3"
+whoami = { version = "1.5.2", default-features = false }
 yaml-rust2 = "0.9.0"
 
 guess_host_triple = "0.1.4"

src/modules/hostname.rs

@@ -1,10 +1,11 @@
 use super::{Context, Module};
-use std::ffi::OsString;
 
 use crate::config::ModuleConfig;
 use crate::configs::hostname::HostnameConfig;
 use crate::formatter::StringFormatter;
 
+use whoami::fallible::hostname;
+
 /// Creates a module with the system hostname
 ///
 /// Will display the hostname if all of the following criteria are met:
@@ -23,15 +24,9 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
         return None;
     }
 
-    let os_hostname: OsString = gethostname::gethostname();
-
-    let host = match os_hostname.into_string() {
-        Ok(host) => host,
-        Err(bad) => {
-            log::warn!("hostname is not valid UTF!\n{:?}", bad);
-            return None;
-        }
-    };
+    let host = hostname()
+        .inspect_err(|e| log::warn!("Failed to get hostname: {e}"))
+        .ok()?;
 
     //rustc doesn't let you do an "if" and an "if let" in the same if statement
     // if this changes in the future this can become a lot cleaner
@@ -91,7 +86,7 @@ mod tests {
 
     macro_rules! get_hostname {
         () => {
-            if let Ok(hostname) = gethostname::gethostname().into_string() {
+            if let Ok(hostname) = whoami::fallible::hostname() {
                 hostname
             } else {
                 println!(

src/modules/username.rs

@@ -19,6 +19,13 @@ const USERNAME_ENV_VAR: &str = "USERNAME";
 /// Does not display the username:
 ///     - If the option `username.detect_env_vars` is set with a negated environment variable [A]
 pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
+    #[cfg(not(test))]
+    let mut username = whoami::fallible::username()
+        .inspect_err(|e| log::debug!("Failed to get username {e:?}"))
+        .ok()
+        .or_else(|| context.get_env(USERNAME_ENV_VAR))?;
+
+    #[cfg(test)]
     let mut username = context.get_env(USERNAME_ENV_VAR)?;
 
     let mut module = context.new_module("username");