Add version field for ReleasePost

Author: Folyd

src/main.rs

@@ -1,18 +1,20 @@
-mod blogs;
-mod posts;
+use std::convert::AsRef;
+use std::error::Error;
+use std::fs::{self, File};
+use std::io::Write;
+use std::path::{Path, PathBuf};
 
-use crate::blogs::Blog;
-use crate::posts::Post;
 use chrono::Timelike;
 use handlebars::{handlebars_helper, Handlebars};
 use sass_rs::{compile_file, Options};
 use serde_derive::Serialize;
 use serde_json::json;
-use std::convert::AsRef;
-use std::error::Error;
-use std::fs::{self, File};
-use std::io::Write;
-use std::path::{Path, PathBuf};
+
+use crate::blogs::Blog;
+use crate::posts::Post;
+
+mod blogs;
+mod posts;
 
 struct Generator<'a> {
     handlebars: Handlebars<'a>,
@@ -30,7 +32,33 @@ struct Releases {
 struct ReleasePost {
     title: String,
     url: String,
+    version: String,
+}
+
+impl ReleasePost {
+    fn new(title: String, url: String) -> ReleasePost {
+        let version = ReleasePost::parse_version_from_url(&url).unwrap();
+        ReleasePost {
+            url,
+            title,
+            version,
+        }
+    }
+
+    fn parse_version_from_url(url: &str) -> Option<String> {
+        // Normalize special cases, such as /2020/05/07/Rust.1.43.1.html
+        let url = url.to_lowercase().replacen("rust.", "rust-", 1);
+        let mut split = url.split('-');
+        split.nth(1).map(|v| {
+            let mut v = v.replace(".html", "");
+            if v.matches('.').count() == 1 {
+                v.push_str(".0");
+            }
+            v
+        })
+    }
 }
+
 handlebars_helper!(hb_month_name_helper: |month_num: u64| match month_num {
     1 => "Jan.",
     2 => "Feb.",
@@ -175,13 +203,14 @@ impl<'a> Generator<'a> {
         let is_released: Vec<&Post> = posts.iter().filter(|post| post.release).collect();
         let releases: Vec<ReleasePost> = is_released
             .iter()
-            .map(|post| ReleasePost {
-                title: post.title.clone(),
-                url: blog
-                    .prefix()
-                    .join(post.url.clone())
-                    .to_string_lossy()
-                    .to_string(),
+            .map(|post| {
+                ReleasePost::new(
+                    post.title.clone(),
+                    blog.prefix()
+                        .join(post.url.clone())
+                        .to_string_lossy()
+                        .to_string(),
+                )
             })
             .collect();
         let data = Releases {