Keep clone files and oversized responses out of the cache

The dumb transport reads files that already sit on the disk, so a pack
copied into a slot cost that disk twice and the request a second write
of every byte. A snapshot took a slot whatever its size, so a visitor
naming distinct refs and ids could fill the cache root with archives.
`cache-max-slot-size`, 64 MB unless set, now serves a larger response
from the lock file and drops it, along with any expired copy it would
have replaced.

1 file changed, 7 insertions, 1 deletion

diff --git a/source/cmd.h b/source/cmd.h
index f580fa1..f47878b 100644
--- a/source/cmd.h
+++ b/source/cmd.h
@@ -17,7 +17,13 @@ struct cgit_cmd {
 };
 
 /*
- * The entry naming ctx.qry.page, or NULL when no page goes by that name.
+ * The entry for the page named, or NULL when no page goes by that name.
+ */
+extern const struct cgit_cmd *cgit_find_cmd(const char *name);
+
+/*
+ * The entry naming ctx.qry.page, after filling in the default page for the
+ * request, or NULL when no page goes by that name.
  */
 extern const struct cgit_cmd *cgit_get_cmd(void);