Refactor get_hostname

datman/src/bin/datman.rs

@@ -182,10 +182,7 @@ fn main() -> anyhow::Result<()> {
             source_name,
             destination_name,
         } => {
-            let my_hostname = hostname::get()
-                .expect("No hostname")
-                .into_string()
-                .expect("Hostname string must be sensible.");
+            let my_hostname = get_hostname();
             let descriptor = load_descriptor(Path::new(".")).unwrap();
             let source = &descriptor.source[&source_name];
             let destination = &descriptor.piles[&destination_name];

datman/src/commands/ilabel.rs

@@ -32,6 +32,7 @@ use crate::labelling::{
 use crate::tree::{scan, FileTree, FileTree1};
 use log::info;
 
+use crate::get_hostname;
 use crate::remote::backup_source_requester;
 use crate::remote::backup_source_requester::connect_to_remote;
 use anyhow::{anyhow, bail};
@@ -187,10 +188,7 @@ pub fn interactive_labelling_session(path: &Path, source_name: String) -> anyhow
         directory,
     } = source
     {
-        let my_hostname = hostname::get()
-            .expect("No hostname")
-            .into_string()
-            .expect("Hostname string must be sensible.");
+        let my_hostname = get_hostname();
         let mut dir_scan = if &my_hostname == hostname {
             info!("Scanning source; this might take a little while...");
             scan(directory)?

datman/src/lib.rs

@@ -3,3 +3,10 @@ pub mod descriptor;
 pub mod labelling;
 pub mod remote;
 pub mod tree;
+
+pub fn get_hostname() -> String {
+    hostname::get()
+        .expect("No hostname")
+        .into_string()
+        .expect("Hostname string must be sensible.")
+}