1 files changed, 63 insertions, 0 deletions
diff --git a/static/git-arr.js b/static/git-arr.js
new file mode 100644
index 0000000..d1e3b81
--- /dev/null
+++ b/static/git-arr.js
@@ -0,0 +1,63 @@
+/* Miscellaneous javascript functions for git-arr. */
+
+/* Return the current timestamp. */
+function now() {
+    return (new Date().getTime() / 1000);
+}
+
+/* Return a human readable string telling "how long ago" for a timestamp. */
+function how_long_ago(timestamp) {
+    if (timestamp < 0)
+        return "never";
+
+	var seconds = Math.floor(now() - timestamp);
+
+	var interval = Math.floor(seconds / (365 * 24 * 60 * 60));
+	if (interval > 1)
+		return interval + " years ago";
+
+	interval = Math.floor(seconds / (30 * 24 * 60 * 60));
+	if (interval > 1)
+		return interval + " months ago";
+
+	interval = Math.floor(seconds / (24 * 60 * 60));
+
+	if (interval > 1)
+		return interval + " days ago";
+	interval = Math.floor(seconds / (60 * 60));
+
+	if (interval > 1)
+		return interval + " hours ago";
+
+	interval = Math.floor(seconds / 60);
+	if (interval > 1)
+		return interval + " minutes ago";
+
+    if (seconds > 1)
+        return Math.floor(seconds) + " seconds ago";
+
+    return "about now";
+}
+
+/* Go through the document and replace the contents of the span.age elements
+ * with a human-friendly variant, and then show them. */
+function replace_timestamps() {
+    var elements = document.getElementsByClassName("age");
+    for (var i = 0; i < elements.length; i++) {
+        var e = elements[i];
+
+        var timestamp = e.innerHTML;
+        e.innerHTML = how_long_ago(timestamp);
+        e.style.display = "inline";
+
+        if (timestamp > 0) {
+            var age = now() - timestamp;
+            if (age < (2 * 60 * 60))
+                e.className = e.className + " age-band0";
+            else if (age < (3 * 24 * 60 * 60))
+                e.className = e.className + " age-band1";
+            else if (age < (30 * 24 * 60 * 60))
+                e.className = e.className + " age-band2";
+        }
+    }
+}