feat: Added config option to filter for specific disk space paths to display in the UI (CLI is unaffected)

src/app/app_tests.rs

@@ -507,6 +507,56 @@ mod tests {
     assert_none!(config.custom_headers);
   }
 
+  #[test]
+  #[serial]
+  fn test_deserialize_optional_env_var_string_vec_is_present() {
+    unsafe { std::env::set_var("TEST_VAR_DESERIALIZE_STRING_VEC_OPTION", "/path1") };
+    let expected_monitored_paths = ["/path1", "/path2"];
+    let yaml_data = r#"
+      monitored_storage_paths:
+        - ${TEST_VAR_DESERIALIZE_STRING_VEC_OPTION}
+        - /path2
+    "#;
+
+    let config: ServarrConfig = serde_yaml::from_str(yaml_data).unwrap();
+
+    assert_some_eq_x!(&config.monitored_storage_paths, &expected_monitored_paths);
+    unsafe { std::env::remove_var("TEST_VAR_DESERIALIZE_STRING_VEC_OPTION") };
+  }
+
+  #[test]
+  #[serial]
+  fn test_deserialize_optional_env_var_string_vec_does_not_overwrite_non_env_value() {
+    unsafe {
+      std::env::set_var(
+        "TEST_VAR_DESERIALIZE_STRING_VEC_OPTION_NO_OVERWRITE",
+        "/path3",
+      )
+    };
+    let expected_monitored_paths = ["/path1", "/path2"];
+    let yaml_data = r#"
+      monitored_storage_paths:
+        - /path1
+        - /path2
+    "#;
+
+    let config: ServarrConfig = serde_yaml::from_str(yaml_data).unwrap();
+
+    assert_some_eq_x!(&config.monitored_storage_paths, &expected_monitored_paths);
+    unsafe { std::env::remove_var("TEST_VAR_DESERIALIZE_STRING_VEC_OPTION_NO_OVERWRITE") };
+  }
+
+  #[test]
+  fn test_deserialize_optional_env_var_string_vec_empty() {
+    let yaml_data = r#"
+      api_token: "test123"
+    "#;
+
+    let config: ServarrConfig = serde_yaml::from_str(yaml_data).unwrap();
+
+    assert_none!(config.monitored_storage_paths);
+  }
+
   #[test]
   #[serial]
   fn test_deserialize_optional_u16_env_var_is_present() {
@@ -620,10 +670,11 @@ mod tests {
     let api_token = "thisisatest".to_owned();
     let api_token_file = "/root/.config/api_token".to_owned();
     let ssl_cert_path = "/some/path".to_owned();
+    let monitored_storage = vec!["/path1".to_owned(), "/path2".to_owned()];
     let mut custom_headers = HeaderMap::new();
     custom_headers.insert("X-Custom-Header", "value".parse().unwrap());
     let expected_str = format!(
-      "ServarrConfig {{ name: Some(\"{name}\"), host: Some(\"{host}\"), port: Some({port}), uri: Some(\"{uri}\"), weight: Some({weight}), api_token: Some(\"***********\"), api_token_file: Some(\"{api_token_file}\"), ssl_cert_path: Some(\"{ssl_cert_path}\"), custom_headers: Some({{\"x-custom-header\": \"value\"}}) }}"
+      "ServarrConfig {{ name: Some(\"{name}\"), host: Some(\"{host}\"), port: Some({port}), uri: Some(\"{uri}\"), weight: Some({weight}), api_token: Some(\"***********\"), api_token_file: Some(\"{api_token_file}\"), ssl_cert_path: Some(\"{ssl_cert_path}\"), custom_headers: Some({{\"x-custom-header\": \"value\"}}), monitored_storage_paths: Some([\"/path1\", \"/path2\"]) }}"
     );
     let servarr_config = ServarrConfig {
       name: Some(name),
@@ -635,6 +686,7 @@ mod tests {
       api_token_file: Some(api_token_file),
       ssl_cert_path: Some(ssl_cert_path),
       custom_headers: Some(custom_headers),
+      monitored_storage_paths: Some(monitored_storage),
     };
 
     assert_str_eq!(format!("{servarr_config:?}"), expected_str);

src/app/mod.rs

@@ -436,6 +436,8 @@ pub struct ServarrConfig {
     serialize_with = "serialize_header_map"
   )]
   pub custom_headers: Option<HeaderMap>,
+  #[serde(default, deserialize_with = "deserialize_optional_env_var_string_vec")]
+  pub monitored_storage_paths: Option<Vec<String>>,
 }
 
 impl ServarrConfig {
@@ -482,6 +484,7 @@ impl Default for ServarrConfig {
       api_token_file: None,
       ssl_cert_path: None,
       custom_headers: None,
+      monitored_storage_paths: None,
     }
   }
 }
@@ -548,6 +551,24 @@ where
   }
 }
 
+fn deserialize_optional_env_var_string_vec<'de, D>(
+  deserializer: D,
+) -> Result<Option<Vec<String>>, D::Error>
+where
+  D: serde::Deserializer<'de>,
+{
+  let opt: Option<Vec<String>> = Option::deserialize(deserializer)?;
+  match opt {
+    Some(vec) => Ok(Some(
+      vec
+        .into_iter()
+        .map(|it| interpolate_env_vars(&it))
+        .collect(),
+    )),
+    None => Ok(None),
+  }
+}
+
 fn deserialize_u16_env_var<'de, D>(deserializer: D) -> Result<Option<u16>, D::Error>
 where
   D: serde::Deserializer<'de>,