Add cache to linkcheck. It will check once per location.pathname per

commit. On a new commit localStorage is wiped.
Raku · Jul 14, 2016 · 573d773 · 573d773
1 parent 2d9cfd9
commit 573d773
Showing 1 changed file with 40 additions and 26 deletions.
diff --git a/html/js/main.js b/html/js/main.js
@@ -110,36 +110,50 @@ function setup_debug_mode(){
 
     }
 
-    console.info("checking for dead links");
+    if(window.localStorage){
+        var sS = window.localStorage;
+        var commit = $('#footer-commit').text();
+        if ( sS.getItem('commit') != commit ) {
+            sS.clear();
+            sS.setItem('commit', commit);
+            console.info("wiping cache");
+        }
+
+        if ( ! sS.getItem(commit+window.location.pathname) ) {
+            sS.setItem(commit+window.location.pathname, "seen");
+            console.info("checking for dead links");
 
-    function report_broken_link(url) {
-        $('html').find('#search').after('<div style="text-align: center;">Broken link: ' + url + ' found. Please report at <a href="https://webchat.freenode.net/?channels=perl6">irc.freenode.net#perl6</a></div>');
-    }
+            function report_broken_link(url) {
+                $('html').find('#search').after('<div style="text-align: center;">Broken link: ' + url + ' found. Please report at <a href="https://webchat.freenode.net/?channels=perl6">irc.freenode.net#perl6</a></div>');
+            }
 
-    var seen_link = [];
-    $('html').find('a[href]').each( function(i, el) {
-        var url_without_anchor = el.href.split('#')[0];
-        if ( ! seen_link.includes(decodeURIComponent(url_without_anchor)) ) {
-            seen_link.push(decodeURIComponent(url_without_anchor));
-        }
-    });
+            var seen_link = [];
+            $('html').find('a[href]').each( function(i, el) {
+                var url_without_anchor = el.href.split('#')[0];
+                if ( ! seen_link.includes(decodeURIComponent(url_without_anchor)) ) {
+                    seen_link.push(decodeURIComponent(url_without_anchor));
+                }
+            });
 
-    seen_link.forEach( function(url) {
-        var request = new XMLHttpRequest();
 
-        request.onreadystatechange = function(){
-            if ( request.readyState === 4 ) {
-                if ( request.status >= 400 ) {
-                    report_broken_link(request.status + " for " + url);
-                } else {
-                    // console.log(request.status + " for " + url);
+            seen_link.forEach( function(url) {
+                var request = new XMLHttpRequest();
+
+                request.onreadystatechange = function(){
+                    if ( request.readyState === 4 ) {
+                        if ( request.status >= 400 ) {
+                            report_broken_link(request.status + " for " + url);
+                        } else {
+                            // console.log(request.status + " for " + url);
+                        }
+                    }
                 }
-            }
-        }
 
-        try {
-            request.open('HEAD', url);
-            request.send();
-        } catch (e) { /* this will catch errors due to browser security settings for external links */ }
-    });
+                try {
+                    request.open('HEAD', url);
+                    request.send();
+                } catch (e) { /* this will catch errors due to browser security settings for external links */ }
+            });
+        }
+    }
 }