ui-diff: Add link to ignore/show whitespace changes in diffs

Add a link to the "Diffstat" line to ignore/show whitespace changes in the
generated diff.

To support this, cgit_commit_link() and cgit_diff_link() has learned to
preserve the ctx.qry.ignorews variable.

Signed-off-by: Johan Herland <johan@herland.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/ui-shared.c b/ui-shared.c
index c99bcec..f46c935 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -349,6 +349,11 @@ void cgit_commit_link(char *name, const char *title, const char *class,
                 htmlf("%d", ctx.qry.context);
                 delim = "&";
         }
+        if (ctx.qry.ignorews) {
+                html(delim);
+                html("ignorews=1");
+                delim = "&";
+        }
         html("'>");
         html_txt(name);
         html("</a>");
@@ -397,6 +402,11 @@ void cgit_diff_link(const char *name, const char *title, const char *class,
                 htmlf("%d", ctx.qry.context);
                 delim = "&amp;";
         }
+        if (ctx.qry.ignorews) {
+                html(delim);
+                html("ignorews=1");
+                delim = "&amp;";
+        }
         html("'>");
         html_txt(name);
         html("</a>");