Pretty print the new dashboard numbers

Cargo.lock

@@ -18,6 +18,65 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b585a98a234c46fc563103e9278c9391fde1f4e6850334da895d27edb9580f62"
 
+[[package]]
+name = "askama"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afb6c2f00d120a43d67345bbd3e9e21d1ee090c1fc7db7787c05bd969b83bccf"
+dependencies = [
+ "askama_derive",
+ "askama_escape",
+ "askama_shared",
+ "mime 0.3.16",
+ "mime_guess 2.0.3",
+]
+
+[[package]]
+name = "askama_derive"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d97b96db4caba8842ec48a537cab1e6d7e809d7a408c97ae99f129e1c982750"
+dependencies = [
+ "askama_shared",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "askama_escape"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90c108c1a94380c89d2215d0ac54ce09796823cca0fd91b299cfff3b33e346fb"
+
+[[package]]
+name = "askama_shared"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3342887c2f85a336bc8bc4fc79603434539cdae37565e20ccf54599dea8e42ee"
+dependencies = [
+ "askama_escape",
+ "humansize",
+ "nom",
+ "num-traits",
+ "percent-encoding",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "syn",
+ "toml",
+]
+
+[[package]]
+name = "askama_warp"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c96f410ab17fa08f70b5fda07ce1112418642c914864961630808979343ea226"
+dependencies = [
+ "askama",
+ "warp",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -654,6 +713,12 @@ version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
 
+[[package]]
+name = "humansize"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6cab2627acfc432780848602f3f558f7e9dd427352224b0d9324025796d2a5e"
+
 [[package]]
 name = "hyper"
 version = "0.13.6"
@@ -847,6 +912,8 @@ name = "mega-mini-indexer"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "askama",
+ "askama_warp",
  "bitpacking",
  "byteorder",
  "cow-utils",
@@ -1038,6 +1105,16 @@ dependencies = [
  "winapi 0.3.8",
 ]
 
+[[package]]
+name = "nom"
+version = "5.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffb4262d26ed83a1c0a33a38fe2bb15797329c85770da05e6b828ddb782627af"
+dependencies = [
+ "memchr",
+ "version_check 0.9.2",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.12"
@@ -1824,6 +1901,15 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "toml"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "tower-service"
 version = "0.3.0"

Cargo.toml

@@ -34,6 +34,8 @@ indexmap = "1.4.0"
 itertools = "0.9.0"
 
 # http server
+askama = "0.10.1"
+askama_warp = "0.10.0"
 serde = { version = "1.0", features = ["derive"] }
 tokio = { version = "0.2.15", features = ["full"] }
 warp = "0.2.2"

public/filesize.min.js

@@ -0,0 +1,6 @@
+/*
+ 2020 Jason Mulligan <jason.mulligan@avoidwork.com>
+ @version 6.1.0
+*/
+"use strict";!function(e){var x=/^(b|B)$/,M={iec:{bits:["b","Kib","Mib","Gib","Tib","Pib","Eib","Zib","Yib"],bytes:["B","KiB","MiB","GiB","TiB","PiB","EiB","ZiB","YiB"]},jedec:{bits:["b","Kb","Mb","Gb","Tb","Pb","Eb","Zb","Yb"],bytes:["B","KB","MB","GB","TB","PB","EB","ZB","YB"]}},w={iec:["","kibi","mebi","gibi","tebi","pebi","exbi","zebi","yobi"],jedec:["","kilo","mega","giga","tera","peta","exa","zetta","yotta"]};function t(e){var i,t,o,n,b,r,a,l,s,d,u,c,f,p,B,y=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{},g=[],v=0,m=void 0,h=void 0;if(isNaN(e))throw new TypeError("Invalid number");return t=!0===y.bits,u=!0===y.unix,i=y.base||2,d=void 0!==y.round?y.round:u?1:2,r=void 0!==y.locale?y.locale:"",a=y.localeOptions||{},c=void 0!==y.separator?y.separator:"",f=void 0!==y.spacer?y.spacer:u?"":" ",B=y.symbols||{},p=2===i&&y.standard||"jedec",s=y.output||"string",n=!0===y.fullform,b=y.fullforms instanceof Array?y.fullforms:[],m=void 0!==y.exponent?y.exponent:-1,o=2<i?1e3:1024,(l=(h=Number(e))<0)&&(h=-h),(-1===m||isNaN(m))&&(m=Math.floor(Math.log(h)/Math.log(o)))<0&&(m=0),8<m&&(m=8),"exponent"===s?m:(0===h?(g[0]=0,g[1]=u?"":M[p][t?"bits":"bytes"][m]):(v=h/(2===i?Math.pow(2,10*m):Math.pow(1e3,m)),t&&o<=(v*=8)&&m<8&&(v/=o,m++),g[0]=Number(v.toFixed(0<m?d:0)),g[0]===o&&m<8&&void 0===y.exponent&&(g[0]=1,m++),g[1]=10===i&&1===m?t?"kb":"kB":M[p][t?"bits":"bytes"][m],u&&(g[1]="jedec"===p?g[1].charAt(0):0<m?g[1].replace(/B$/,""):g[1],x.test(g[1])&&(g[0]=Math.floor(g[0]),g[1]=""))),l&&(g[0]=-g[0]),g[1]=B[g[1]]||g[1],!0===r?g[0]=g[0].toLocaleString():0<r.length?g[0]=g[0].toLocaleString(r,a):0<c.length&&(g[0]=g[0].toString().replace(".",c)),"array"===s?g:(n&&(g[1]=b[m]?b[m]:w[p][m]+(t?"bit":"byte")+(1===g[0]?"":"s")),"object"===s?{value:g[0],symbol:g[1],exponent:m}:g.join(f)))}t.partial=function(i){return function(e){return t(e,i)}},"undefined"!=typeof exports?module.exports=t:"function"==typeof define&&void 0!==define.amd?define(function(){return t}):e.filesize=t}("undefined"!=typeof window?window:global);
+//# sourceMappingURL=filesize.min.js.map

public/script.js

@@ -53,3 +53,13 @@ $('#search').on('input', function () {
     },
   });
 });
+
+// Make the number of document a little bit prettier
+$('#docs-count').text(function(index, text) {
+  return parseInt(text).toLocaleString()
+});
+
+// Make the database a little bit easier to read
+$('#db-size').text(function(index, text) {
+  return filesize(parseInt(text))
+});

src/bin/serve.rs

@@ -1,8 +1,10 @@
+use std::fs::File;
 use std::net::SocketAddr;
 use std::path::PathBuf;
 use std::str::FromStr;
 use std::time::Instant;
 
+use askama_warp::Template;
 use heed::EnvOpenOptions;
 use serde::Deserialize;
 use structopt::StructOpt;
@@ -32,6 +34,14 @@ struct Opt {
     http_listen_addr: String,
 }
 
+#[derive(Template)]
+#[template(path = "index.html")]
+struct IndexTemplate {
+    db_name: String,
+    db_size: usize,
+    docs_count: usize,
+}
+
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     let opt = Opt::from_args();
@@ -44,12 +54,29 @@ async fn main() -> anyhow::Result<()> {
 
     let index = Index::new(&env)?;
 
+    // Retrieve the database the file stem (w/o the extension)
+    let db_name = opt.database.file_stem().and_then(|s| s.to_str()).unwrap_or("").to_string();
+
+    // Retrieve the disk file size
+    let db_size = File::open(opt.database.join("data.mdb"))?.metadata()?.len() as usize;
+
+    // Precompute the number of documents in the database.
+    let rtxn = env.read_txn().unwrap();
+    let docs_count = index.documents.len(&rtxn)?;
+    drop(rtxn);
+
     // We run and wait on the HTTP server
 
     // Expose an HTML page to debug the search in a browser
     let dash_html_route = warp::filters::method::get()
         .and(warp::filters::path::end())
-        .map(|| warp::reply::html(include_str!("../../public/index.html")));
+        .map(move || {
+            IndexTemplate {
+                db_name: db_name.clone(),
+                db_size,
+                docs_count,
+            }
+        });
 
     let dash_bulma_route = warp::filters::method::get()
         .and(warp::path!("bulma.min.css"))
@@ -79,6 +106,13 @@ async fn main() -> anyhow::Result<()> {
             .body(include_str!("../../public/papaparse.min.js"))
         );
 
+    let dash_filesize_route = warp::filters::method::get()
+        .and(warp::path!("filesize.min.js"))
+        .map(|| Response::builder()
+            .header("content-type", "application/javascript; charset=utf-8")
+            .body(include_str!("../../public/filesize.min.js"))
+        );
+
     let dash_script_route = warp::filters::method::get()
         .and(warp::path!("script.js"))
         .map(|| Response::builder()
@@ -124,6 +158,7 @@ async fn main() -> anyhow::Result<()> {
         .or(dash_style_route)
         .or(dash_jquery_route)
         .or(dash_papaparse_route)
+        .or(dash_filesize_route)
         .or(dash_script_route)
         .or(query_route);
 

templates/index.html

@@ -7,7 +7,8 @@
   <link rel="stylesheet" href="/style.css">
   <script type="text/javascript" src="/jquery-3.4.1.min.js"></script>
   <script type="text/javascript" src="/papaparse.min.js"></script>
-  <title>The milli engine</title>
+  <script type="text/javascript" src="/filesize.min.js"></script>
+  <title>{{ db_name }} | The milli engine</title>
 </head>
 <body>
 
@@ -20,20 +21,20 @@
         <nav class="level">
           <div class="level-item has-text-centered">
             <div>
-              <p class="heading">Database Name</p>
+              <p class="heading">Database Path</p>
-              <p class="title">songs-2.mmdb</p>
+              <p class="title">{{ db_name }}</p>
             </div>
           </div>
           <div class="level-item has-text-centered">
             <div>
               <p class="heading">Database Size</p>
-              <p class="title">123 MB</p>
+              <p class="title" id="db-size">{{ db_size }}</p>
             </div>
           </div>
           <div class="level-item has-text-centered">
             <div>
               <p class="heading">Number of Documents</p>
-              <p class="title">456 K</p>
+              <p class="title" id="docs-count">{{ docs_count }}</p>
             </div>
           </div>
         </nav>