[PATCH hg-website] Mercurial version x.y.z, z=0 is always incorrect; disregard

[David Champion]

* On 02 Mar 2011, David Champion wrote: 
> +
> +    // Strip '.0' version suffix. It is always incorrect for Mercurial releases.
> +    if (this.version.indexOf('.0', this.version.length - 2) != -1)
> +        this.version = this.version.substr(0, this.version.length - 2);

That is so incorrect I can't even apologize.  Here's a better patch.

# HG changeset patch
# User David Champion <dgc at uchicago.edu>
# Date 1299088054 21600
# Node ID 7f0294254d678e26f0dda1fb11f164261f0dc338
# Parent  946b08cf525c337940aafe81e6297aa1186bbd90
Mercurial version x.y.z, z=0 is always incorrect; disregard.

An erroneous latest.dat should be fixed, but this patch will prevent
such errors from having a negative effect on the website.  (They
cause prior versions not to be displayed even when they should be, if
Downloader.maxversions is nonzero.)

diff --git a/static/js/download.js b/static/js/download.js
--- a/static/js/download.js
+++ b/static/js/download.js
@@ -3,6 +3,14 @@
     this.regex = source[1];
     this.url = source[2];
     this.desc = source[3];
+
+    // Strip '.0' version suffix, unless it is for a minor version.
+    // It is always incorrect for Mercurial releases.
+    var points = this.version.split('.');
+    if (points.length > 2 && points[points.length-1] == "0") {
+        points.pop();
+        this.version = points.join(".");
+    }
 }
 
 Download.prototype = {