Do syntax highlighting

Cargo.lock

@@ -1,5 +1,10 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "adler32"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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 version = "0.6.10"
@@ -65,6 +70,16 @@ dependencies = [
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 ]
 
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+ "serde 1.0.90 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -94,6 +109,11 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -144,6 +164,22 @@ dependencies = [
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@@ -239,6 +275,22 @@ dependencies = [
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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 [[package]]
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@@ -298,6 +350,7 @@ dependencies = [
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  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntect 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -315,6 +368,14 @@ name = "humansize"
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 [[package]]
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@@ -420,6 +481,19 @@ name = "libc"
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@@ -468,6 +542,34 @@ dependencies = [
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@@ -557,6 +659,26 @@ dependencies = [
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 [[package]]
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@@ -655,6 +777,24 @@ dependencies = [
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+[[package]]
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@@ -671,6 +811,11 @@ dependencies = [
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@@ -1052,6 +1197,27 @@ dependencies = [
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+"checksum miniz_oxide_c_api 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b7fe927a42e3807ef71defb191dc87d4e24479b221e67015fe38ae2b7b447bab"
 "checksum mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)" = "71646331f2619b1026cc302f87a2b8b648d5c6dd6937846a16cc8ce0f347f432"
 "checksum mio-extras 2.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "46e73a04c2fa6250b8d802134d56d554a9ec2922bf977777c805ea5def61ce40"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
@@ -1360,6 +1552,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "e83d528d2677f0518c570baf2b7abdcf0cd2d248860b68507bdcb3e91d4c0cea"
 "checksum num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0b3a5d7cc97d6d30d8b9bc8fa19bf45349ffe46241e8816f50f62f6d6aaabee1"
 "checksum num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1a23f0ed30a54abaa0c7e83b1d2d87ada7c3c23078d1d87815af3e3b6385fbba"
+"checksum onig 4.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a646989adad8a19f49be2090374712931c3a59835cb5277b4530f48b417f26e7"
+"checksum onig_sys 69.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388410bf5fa341f10e58e6db3975f4bea1ac30247dd79d37a9e5ced3cb4cc3b0"
 "checksum opaque-debug 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "93f5bb2e8e8dec81642920ccff6b61f1eb94fa3020c5a325c9851ff604152409"
 "checksum owning_ref 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "49a4b8ea2179e6a2e27411d3bca09ca6dd630821cf6894c6c7c8467a8ee7ef13"
 "checksum parking_lot 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab41b4aed082705d1056416ae4468b6ea99d52599ecf3169b00088d43113e337"
@@ -1371,8 +1565,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "833d1ae558dc601e9a60366421196a8d94bc0ac980476d0b67e1d0988d72b2d0"
 "checksum pest_generator 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "63120576c4efd69615b5537d3d052257328a4ca82876771d6944424ccfd9f646"
 "checksum pest_meta 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f249ea6de7c7b7aba92b4ff4376a994c6dbd98fd2166c89d5c4947397ecb574d"
+"checksum pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "676e8eb2b1b4c9043511a9b7bea0915320d7e502b0a079fb03f9635a5252b18c"
+"checksum plist 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f4739851c08dd9a62a78beff2edf1a438517268b2c563c42fc6d9d3139e42d2a"
 "checksum pq-sys 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "6ac25eee5a0582f45a67e837e350d784e7003bd29a5f460796772061ca49ffda"
 "checksum proc-macro2 0.4.29 (registry+https://github.com/rust-lang/crates.io-index)" = "64c827cea7a7ab30ce4593e5e04d7a11617ad6ece2fa230605a78b00ff965316"
+"checksum quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
 "checksum quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "faf4799c5d274f3868a4aae320a0a182cbd2baee377b378f080e16a23e9d80db"
 "checksum r2d2 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9dd8a293251281a4d02848925fcdbbc9f466ddb4965981bb06680359b3d12091"
 "checksum r2d2-diesel 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "eb9c29bad92da76d02bc2c020452ebc3a3fe6fa74cfab91e711c43116e4fb1a3"
@@ -1416,6 +1613,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 "checksum state 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7345c971d1ef21ffdbd103a75990a15eb03604fc8b8852ca8cb418ee1a099028"
 "checksum syn 0.15.33 (registry+https://github.com/rust-lang/crates.io-index)" = "ec52cd796e5f01d0067225a5392e70084acc4c0013fa71d55166d38a8b307836"
+"checksum syntect 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e80b8831c5a543192ffc3727f01cf0e57579c6ac15558e3048bfb5708892167b"
 "checksum tera 0.11.20 (registry+https://github.com/rust-lang/crates.io-index)" = "4b505279e19d8f7d24b1a9dc58327c9c36174b1a2c7ebdeac70792d017cb64f3"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
@@ -1448,5 +1646,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
+"checksum xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "541b12c998c5b56aa2b4e6f18f03664eef9a4fd0a246a55594efae6cc2d964b5"
+"checksum yaml-rust 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "65923dd1784f44da1d2c3dbbc5e822045628c590ba72123e1c73d3c230c4434d"
 "checksum yansi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d60c3b48c9cdec42fb06b3b84b5b087405e1fa1c644a1af3930e4dfafe93de48"
 "checksum yansi 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9fc79f4a1e39857fc00c3f662cbf2651c771f00e9c15fe2abc341806bd46bd71"

Cargo.toml

@@ -14,6 +14,7 @@ rocket = "0.4.0"
 serde = "1.0.82"
 serde_derive = "1.0.82"
 serde_json = "1.0.33"
+syntect = "3.2.0"
 
 [dependencies.rocket_contrib]
 version = "0.4.0"

src/main.rs

@@ -11,6 +11,7 @@ extern crate rocket;
 extern crate rocket_contrib;
 #[macro_use]
 extern crate serde_derive;
+extern crate syntect;
 
 use dotenv::dotenv;
 use rocket_contrib::templates::Template;

src/routes.rs

@@ -4,6 +4,9 @@ use rocket::response::status;
 use rocket_contrib::json::Json;
 use rocket_contrib::templates::Template;
 use std::collections::HashMap;
+use syntect::highlighting::ThemeSet;
+use syntect::html::highlighted_html_for_string;
+use syntect::parsing::SyntaxSet;
 
 use crate::connection::DbConn;
 use crate::gists;
@@ -30,7 +33,36 @@ pub fn show_gist(id: i32, connection: DbConn) -> Template {
         Err(_) => None,
     };
     let mut context = HashMap::new();
-    context.insert("gist", gist);
+
+    match gist {
+        Some(g) => {
+            let body = match g.filetype {
+                Some(filetype) => {
+                    let ps = SyntaxSet::load_defaults_newlines();
+                    let ts = ThemeSet::load_defaults();
+                    let syntax = ps.find_syntax_by_extension(&filetype);
+
+                    match syntax {
+                        Some(s) => highlighted_html_for_string(
+                            &g.body,
+                            &ps,
+                            s,
+                            &ts.themes["Solarized (light)"],
+                        ),
+                        None => format!("<pre class='plaintext'>{}</pre>", g.body),
+                    }
+                }
+                None => format!("<pre class='plaintext'>{}</pre>", g.body),
+            };
+            context.insert("title", g.title.clone());
+            context.insert("body", body);
+        }
+        None => {
+            context.insert("title", "404".to_string());
+            context.insert("body", "<h3>Gist not found</h3>".to_string());
+        }
+    }
+
     Template::render("gists/show", &context)
 }
 

templates/gists/show.tera

@@ -1,32 +1,28 @@
 <html>
   <head>
-    <title>{% if gist %}{{ gist.title }}{% else %}404 - Not Found{% endif %}</title>
+    <title>{{ title }}</title>
     <style>
       pre {
-        counter-reset: line;
+        font-size: 16px;
+        padding: 15px;
       }
-      code {
-        counter-increment: line;
+
+      pre.plaintext {
+        padding: 0;
       }
-      code:before {
-        content: counter(line);
-        margin-right: 10px;
+
+      .container {
+        margin: auto;
+        max-width: 800px;
       }
     </style>
   </head>
   <body>
-    {% if gist %}
-      <h3>{{ gist.title }}</h3>
+    <div class="container">
+      <h1>{{ title }}</h3>
       <div>
-          {% set lines = gist.body | split(pat = '
-') %}
-        <pre>
-          {%- for line in lines %}<code id="{{ loop.index }}">{{ line }}</code>
-{% endfor %}
-        </pre>
+        {{ body | safe }}
       </div>
-    {% else %}
-      <h3>Gist not found</h3>
-    {% endif %}
+    </div>
   </body>
 </html>