convert hand-written enum as_str matches to strum derives workspace-wide

swarm-controller/src/webhook.rs

@@ -167,11 +167,13 @@ fn hex_decode(s: &str) -> Option<Vec<u8>> {
 /// registration we made* instead of by a field the sender chooses. Each
 /// registered hook gets its own `target_url`, exactly as the per-hive hooks
 /// do today.
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq, strum::IntoStaticStr, strum::EnumString)]
 pub(super) enum DeliveryKind {
     /// Push events on the hive-wide knowledge repo.
+    #[strum(serialize = "knowledge")]
     Knowledge,
     /// `pull_request` events on the agent-config repos.
+    #[strum(serialize = "config-pr")]
     ConfigPr,
     /// `push` events on every repo in the instance — see
     /// `crate::vcs_metrics`'s doc comment for why this exists as its own
@@ -179,6 +181,7 @@ pub(super) enum DeliveryKind {
     /// hook: that one is repo-scoped to the knowledge repo alone, and this
     /// one is instance-wide (registered via `admin_create_hook`, not
     /// `repo_create_hook`) — different scope, same event name.
+    #[strum(serialize = "vcs-activity")]
     VcsActivity,
 }
 
@@ -219,14 +222,12 @@ impl DeliveryKind {
     /// Parse the `{kind}` path segment. Unknown values are rejected rather
     /// than accepted-and-ignored: a typo in a registered `target_url` must
     /// be *observable*, and a 200 for an unrecognised path is exactly the
-    /// silence this issue exists to remove.
+    /// silence this issue exists to remove. Derived (`strum::EnumString`,
+    /// the same per-variant `#[strum(serialize = "...")]` spellings
+    /// `as_str` uses) rather than a hand-written match kept in sync with
+    /// that one by hand.
     fn parse(segment: &str) -> Option<Self> {
-        match segment {
-            "knowledge" => Some(Self::Knowledge),
-            "config-pr" => Some(Self::ConfigPr),
-            "vcs-activity" => Some(Self::VcsActivity),
-            _ => None,
-        }
+        segment.parse().ok()
     }
 
     /// Stable string form, used for logging. Deliberately the same spelling
@@ -238,11 +239,7 @@ impl DeliveryKind {
     /// addressed to the hives that need it; which hook a delivery arrived on
     /// is an input to deriving it, not the thing sent.
     fn as_str(self) -> &'static str {
-        match self {
-            Self::Knowledge => "knowledge",
-            Self::ConfigPr => "config-pr",
-            Self::VcsActivity => "vcs-activity",
-        }
+        self.into()
     }
 }