Added helper binary to regenerate READMEs

Cargo.toml

@@ -5,4 +5,5 @@ members = [
     "crates/alexandrie-storage",
     "crates/alexandrie-rendering",
     "helpers/syntect-dump",
+    "helpers/readme-render",
 ]

helpers/readme-render/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "readme-render"
+version = "0.1.0"
+edition = "2018"
+authors = ["Nicolas Polomack <nicolas@polomack.eu>"]
+description = "A simple helper to generate syntect's binary dumps for Alexandrie"
+repository = "https://github.com/Hirevo/alexandrie"
+documentation = "https://crates.polomack.eu/docs/alexandrie"
+license = "MIT OR Apache-2.0"
+publish = false
+
+[dependencies]
+alexandrie-rendering = { path = "../../crates/alexandrie-rendering", version = "0.1.0" }
+serde = { version = "1.0.124", features = ["derive"] }
+toml = "0.5.8"
+
+[features]

helpers/readme-render/src/main.rs

@@ -0,0 +1,31 @@
+use std::env;
+use std::fs;
+
+use alexandrie_rendering::config::{SyntectConfig, SyntectState};
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, PartialEq, Deserialize, Serialize)]
+pub struct Config {
+    /// The syntax-highlighting configuration.
+    pub syntect: SyntectConfig,
+}
+
+fn main() {
+    let readme_path = env::args()
+        .skip(1)
+        .next()
+        .expect("could not find a command-line argument");
+
+    let contents =
+        fs::read("alexandrie.toml").expect("could not open configuration file `alexandrie.toml`");
+    let config: Config =
+        toml::from_slice(contents.as_slice()).expect("could not parse configuration file");
+
+    let state = SyntectState::from(config.syntect);
+
+    let contents = fs::read_to_string(readme_path).expect("could not open README file");
+    let rendered = alexandrie_rendering::render_readme(&state, &contents);
+
+    fs::write("output.html", &rendered).expect("could not write rendered HTML output");
+}