Alphabetize list output

src/manip.rs

@@ -103,10 +103,15 @@ impl ModMap {
         self
     }
 
-    pub fn export_file(self, block_path: &str, mute_path: &str, heat: (u16, u16)) -> std::io::Result<()> {
+    pub fn export_file(
+        self,
+        block_path: &str,
+        mute_path: &str,
+        heat: (u16, u16),
+    ) -> std::io::Result<()> {
         if self.0.is_empty() {
             error!("Nothing to export!");
-            return Ok(())
+            return Ok(());
         }
 
         let (block_thresh, mute_thresh) = heat;
@@ -125,9 +130,19 @@ impl ModMap {
             }
         }
 
-        fs::write(block_path, block_output)?;
+        fs::write(block_path, alphabetize_lines(block_output))?;
-        fs::write(mute_path, mute_output)?;
+        fs::write(mute_path, alphabetize_lines(mute_output))?;
 
         Ok(())
     }
 }
+
+pub fn alphabetize_lines(string: String) -> String {
+    let mut v = string
+        .lines()
+        .map(|literal| literal.to_string())
+        .collect::<Vec<String>>();
+    v.sort_by_key(|a| a.to_lowercase());
+
+    v.join("\n") + "\n"
+}

src/tests/manip.rs

@@ -196,5 +196,5 @@ fn modmap_export_txt() {
     let mutes: String = fs::read_to_string("test_mutes.txt").unwrap();
 
     assert_eq!(blocks, "example.com\n");
-    assert!(mutes == "example.org\nexample.net\n" || mutes == "example.net\nexample.org\n");
+    assert_eq!(mutes, "example.net\nexample.org\n");
 }