Move user info gathering to its own workspace crate

2 files changed, 27 insertions, 0 deletions

diff --git a/user-info/Cargo.toml b/user-info/Cargo.toml
new file mode 100644
index 0000000..63a3f7c
--- /dev/null
+++ b/user-info/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "user-info"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+nix = { version = "0.26.2", default-features = false, features = ["user"] }
diff --git a/user-info/src/lib.rs b/user-info/src/lib.rs
new file mode 100644
index 0000000..bd5ff42
--- /dev/null
+++ b/user-info/src/lib.rs
@@ -0,0 +1,20 @@
+use nix::unistd::{getuid, User};
+
+pub fn get_username() -> Option<String> {
+    let uid = getuid();
+    User::from_uid(uid).ok().flatten().map(|user| user.name)
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn it_returns_a_username() {
+        // We can't get too specific here because this is your actual username,
+        // but we at lease expect it to be some string, not None.
+        let username = get_username();
+        let username_len = username.unwrap().trim().len();
+        assert!(username_len > 0);
+    }
+}