fix: disabling link validation doesn't disable link and reference collection (#659)

Signed-off-by: squidfunk <martin.donath@squidfunk.com>

crates/zensical/src/config/validation.rs

@@ -55,6 +55,25 @@ pub struct Validation {
     pub invalid_link_anchors: bool,
 }
 
+// ----------------------------------------------------------------------------
+// Implementations
+// ----------------------------------------------------------------------------
+
+impl Validation {
+    /// Return whether any validation check is enabled.
+    #[inline]
+    pub fn is_enabled(&self) -> bool {
+        self.unresolved_references
+            || self.unresolved_footnotes
+            || self.unused_definitions
+            || self.unused_footnotes
+            || self.shadowed_definitions
+            || self.shadowed_footnotes
+            || self.invalid_links
+            || self.invalid_link_anchors
+    }
+}
+
 // ----------------------------------------------------------------------------
 // Trait implementations
 // ----------------------------------------------------------------------------

crates/zensical/src/workflow.rs

@@ -100,9 +100,11 @@ impl Module for Main {
         let pages = page.select([wait_for_markdown(&self.config)]);
 
         // Collect all anchors and references from pages, to validate links
-        let references = collect_references(&files);
-        let anchors = collect_anchors(&page);
-        validate(&self.config, self.strict, references, anchors);
+        if self.config.project.validation.is_enabled() {
+            let references = collect_references(&files);
+            let anchors = collect_anchors(&page);
+            validate(&self.config, self.strict, references, anchors);
+        }
 
         // Generate navigation and search index
         let nav = generate_nav(&self.config, &pages);