Cache better (#296)

* Many improvements around bandwidth use

- Use ETags for RSS/Atom feeds
- Use cache-control headers
- Update to rust nightly (for rust-analyzer and faster builds)
- Limit feeds to the last 20 posts:
  https://twitter.com/theprincessxena/status/1349891678857998339
- Use if-none-match to limit bandwidth further

Also does this:

- bump go_vanity to 0.3.0 and lets users customize the branch name
- fix formatting on jsonfeed
- remove last vestige of kubernetes/docker support

Signed-off-by: Christine Dodrill <me@christine.website>

* expire cache quicker for dynamic pages

Signed-off-by: Christine Dodrill <me@christine.website>

* add rss ttl

Signed-off-by: Christine Dodrill <me@christine.website>

* add blogpost

Signed-off-by: Christine Dodrill <me@christine.website>

1 files changed, 5 insertions, 6 deletions

diff --git a/lib/jsonfeed/src/builder.rs b/lib/jsonfeed/src/builder.rs
index f17740f..640a280 100644
--- a/lib/jsonfeed/src/builder.rs
+++ b/lib/jsonfeed/src/builder.rs
@@ -1,7 +1,7 @@
 use std::default::Default;
 
 use errors::*;
-use feed::{Feed, Author, Attachment};
+use feed::{Attachment, Author, Feed};
 use item::{Content, Item};
 
 /// Feed Builder
@@ -160,7 +160,7 @@ impl ItemBuilder {
         match self.content {
             Some(Content::Text(t)) => {
                 self.content = Some(Content::Both(i.into(), t));
-            },
+            }
             _ => {
                 self.content = Some(Content::Html(i.into()));
             }
@@ -172,10 +172,10 @@ impl ItemBuilder {
         match self.content {
             Some(Content::Html(s)) => {
                 self.content = Some(Content::Both(s, i.into()));
-            },
+            }
             _ => {
                 self.content = Some(Content::Text(i.into()));
-            },
+            }
         }
         self
     }
@@ -197,8 +197,7 @@ impl ItemBuilder {
             date_modified: self.date_modified,
             author: self.author,
             tags: self.tags,
-            attachments: self.attachments
+            attachments: self.attachments,
         })
     }
 }
-