big refactor

Cargo.lock

@@ -82,6 +82,7 @@ dependencies = [
  "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "blake2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "image 0.21.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "image-utils 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "markdown 0.2.0 (git+https://github.com/johannhof/markdown.rs)",

Cargo.toml

@@ -13,3 +13,5 @@ image-utils = "0.2.0"
 image = "0.21.0"
 blake2 = "0.8.0"
 base64 = "0.10.1"
+failure = "0.1.5"
+

src/hash_dict.rs

@@ -1,8 +1,8 @@
 use std::collections::HashMap;
 use std::fs::File;
+use std::io;
 use std::io::Read;
 use std::io::Write;
-use std::io;
 use std::path::PathBuf;
 
 // file-stored hash map used to prevent needless image regenerating
@@ -33,18 +33,19 @@ impl HashDict {
         for l in lines {
             let halves: Vec<&str> = l.split("\t").collect();
             if halves.len() == 2 {
-                hd.hashes.insert(halves[0].to_string(), halves[1].to_string());
+                hd.hashes
+                    .insert(halves[0].to_string(), halves[1].to_string());
             }
         }
 
         Ok(hd)
     }
 
-    pub fn get(&self, key : &str) -> Option<&String> {
+    pub fn get(&self, key: &str) -> Option<&String> {
         self.hashes.get(key)
     }
 
-    pub fn put(&mut self, key : String, value: String) {
+    pub fn put(&mut self, key: String, value: String) {
         self.hashes.insert(key, value);
         self.any_change = true;
     }

src/main.rs

@@ -1,26 +1,38 @@
+use blake2::{Blake2b, Digest};
+use chrono;
+use chrono::offset::TimeZone;
+use chrono::Date;
+use chrono::NaiveDate;
+use chrono::Utc;
+use failure::Fallible;
+use image_utils;
+use markdown;
+use percent_encoding::{utf8_percent_encode, DEFAULT_ENCODE_SET};
+use rss::{Channel, ChannelBuilder, Guid, ItemBuilder};
 use std::env;
-use std::io;
 use std::fs;
 use std::fs::DirEntry;
 use std::fs::File;
+use std::fs::OpenOptions;
+use std::io;
 use std::io::prelude::*;
 use std::path::{Path, PathBuf};
-use chrono;
-use chrono::NaiveDate;
-use markdown;
-use std::fs::OpenOptions;
-use rss::{Channel, ChannelBuilder, Item, ItemBuilder, Guid};
-use percent_encoding::{utf8_percent_encode, DEFAULT_ENCODE_SET};
-use image_utils;
-use chrono::offset::TimeZone;
-use chrono::Date;
-use chrono::Utc;
-use blake2::{Digest,Blake2b};
 
 use base64;
+use std::collections::HashMap;
 
 mod hash_dict;
 
+#[derive(Debug)]
+struct BreadRendered {
+    thumb: String,
+    detail: String,
+    rss_item: Option<rss::Item>,
+    title: String,
+    url: String,
+    detail_fname: String,
+}
+
 #[derive(Debug)]
 struct Bread {
     path: PathBuf,
@@ -29,26 +41,183 @@ struct Bread {
     note: String,
     rss_note: String,
     images: Vec<PathBuf>,
+    rendered: BreadRendered,
+}
+
+//impl From<std::option::NoneError> for failure::Error {
+//    fn from(x: std::option::NoneError) -> Self {
+//        failure::err_msg("Expected something, found nothing.")
+//    }
+//}
+
+#[derive(Debug)]
+struct BreadLink {
+    label: String,
+    url: String,
 }
 
 impl Bread {
-    fn thumb_photo(&self) -> (&str, &str) {
-        let mut first_img : &PathBuf = self.images.get(0).unwrap();
+    fn compile(&mut self, config: &mut GalleryConfig, prev : Option<BreadLink>, next : Option<BreadLink>) -> Fallible<()> {
+        let date = self.date.format("%Y/%m/%d").to_string();
+        let date_slug = self.date.format("%Y-%m-%d").to_string();
+        let detail_file = date_slug.clone() + ".html";
+        println!("+ {}", date_slug);
 
+        self.rendered.title = date.clone();
+        self.rendered.detail_fname = detail_file.clone();
+
+        // figure out the thumbnail pic
+        let (img_path, img_alt) = {
+            let mut first_img: &PathBuf = self.images.get(0).expect(&format!("No images for bread {}", date_slug));
             for im in &self.images {
                 if im.file_name().unwrap().to_str().unwrap().contains("cover") {
                     first_img = im;
                     break;
                 }
             }
+            (
+                first_img.to_str().unwrap().to_owned(),
+                first_img.file_name().unwrap().to_str().unwrap().to_owned(),
+            )
+        };
+
+        let note = if self.note.is_empty() {
+            "<i>There's no note about this bread.</i>"
+        } else {
+            &self.note
+        };
+
+        let thumb_fname = date_slug.clone() + "." + Path::new(&img_path).extension().unwrap().to_str().unwrap();
+        let thumb_path = config.thumbs_path.join(&thumb_fname);
+        let thumb_relpath = thumb_path.strip_prefix(&config.web_path)?;
+
+        let image_path_encoded =
+            utf8_percent_encode(thumb_relpath.to_str().unwrap(), DEFAULT_ENCODE_SET).to_string();
+
+        let image_real_path = config.web_path.join(img_path);
+
+        // Create the thumb
+        {
+            let mut img_file = fs::File::open(&image_real_path)?;
+            let mut hasher = Blake2b::new();
+            io::copy(&mut img_file, &mut hasher)?;
+            let hash = base64::encode(&hasher.result());
+
+            let hash_key = thumb_path.to_str().unwrap();
+            let old_hash = config.image_hashes.get(hash_key);
+            if old_hash.is_none() || !old_hash.unwrap().eq(&hash) {
+                println!("building thumb...");
+
+                let im = image::open(&image_real_path)?;
+                let im = im.thumbnail(500, 500);
+                im.save(&thumb_path)?;
+
+                config.image_hashes.put(hash_key.to_string(), hash);
+            }
+        }
+
+        // Prepare the thumb card for the gallery page
+        {
+            self.rendered.thumb = config
+                .template("_thumb.html")?
+                .replace("{detail_url}", &detail_file)
+                .replace("{img_src}", &image_path_encoded)
+                .replace("{img_alt}", &img_alt)
+                .replace("{title}", &date);
+        }
+
+        // Add to RSS
+        {
+            let image_url: String = config.base_url.to_owned() + "/" + &image_path_encoded;
+
+            let link: String = config.base_url.to_owned() + "/" + &detail_file;
+            let mut guid = Guid::default();
+            guid.set_value(link.clone());
+            guid.set_permalink(true);
+
+            let date_formatted: Date<Utc> = chrono::Utc.from_local_date(&self.date).unwrap();
+            let dt = date_formatted.and_hms(12, 0, 0);
+
+            let mut descr = String::new();
+            if !self.rss_note.is_empty() {
+                descr.push_str(&self.rss_note);
+                descr.push_str("<hr>");
+            }
+            descr.push_str(note);
+            descr.push_str(&format!(
+                "<img src=\"{}\" alt=\"{}\"><p><i>Open the link for full-res photos ({} total)</i>",
+                image_url,
+                img_alt,
+                self.images.len()
+            ));
+
+            self.rendered.url = link.clone();
+
+            let item: rss::Item = ItemBuilder::default()
+                .title(date.clone())
+                .link(link)
+                .description(descr)
+                .guid(guid)
+                .pub_date(dt.to_rfc2822())
+                .build().unwrap();
+
+            self.rendered.rss_item = Some(item);
+        }
+
+        let head_tpl = config.template("_head.html")?;
+
+        // Generate the detail page
+        {
+            let win_title = format!("Bread from {}", date);
+
+            let detail = config
+                .template("detail.html")?
+                .replace("{head}", &head_tpl.replace("{title}", &win_title))
+                .replace("{title}", &win_title)
+                .replace("{date}", &date_slug)
+                .replace("{url}", &format!("{}/{}", config.base_url, detail_file))
+                .replace(
+                    "{thumb_url}",
+                    &format!("{}/thumbs/{}", config.base_url, thumb_fname),
+                )
+                .replace("{heading}", &date)
+                .replace("{prev}", &(match prev {
+                    Some(b) => format!("<a class=\"prev\" href=\"{}\" title=\"{}\">&lt;</a>", b.url, b.label),
+                    None => "".to_string()
+                }))
+                .replace("{next}", &(match next {
+                    Some(b) => format!("<a class=\"next\" href=\"{}\" title=\"{}\">&gt;</a>", b.url, b.label),
+                    None => "".to_string()
+                }))
+                .replace("{note}", note.trim());
+
+            let mut pics = String::new();
+            for img in &self.images {
+                pics.push_str(&format!(
+                    "      <a href=\"{src}\"><img src=\"{src}\"></a>\n",
+                    src = &utf8_percent_encode(img.to_str().unwrap(), DEFAULT_ENCODE_SET).to_string()
+                ))
+            }
+
+            let detail = detail.replace("{images}", &pics.trim());
+
+            let mut f = OpenOptions::new().write(true).truncate(true).create(true).open(config.web_path.join(detail_file)).unwrap();
+            f.write(detail.as_bytes()).unwrap();
+
+            self.rendered.detail = detail;
+        }
 
-        let img_path = first_img.to_str().unwrap();
-        let img_alt = first_img.file_name().unwrap().to_str().unwrap();
+        Ok(())
+    }
 
-        (img_path, img_alt)
+    fn to_link(&self) -> BreadLink {
+        BreadLink {
+            label: self.date.format("%Y/%m/%d").to_string(),
+            url: self.date.format("%Y-%m-%d.html").to_string(),
+        }
     }
 
-    fn parse(base_dir : &PathBuf, bread_dir : &DirEntry) -> Result<Bread, std::io::Error> {
+    fn parse(base_dir: &PathBuf, bread_dir: &DirEntry) -> Result<Bread, std::io::Error> {
         let bpath = bread_dir.path();
         let mut note = String::new();
         let mut rss_note = String::new();
@@ -80,192 +249,155 @@ impl Bread {
         let mut bread_files: Vec<DirEntry> = fs::read_dir(&bpath)?.map(|e| e.unwrap()).collect();
         bread_files.sort_by(|x, y| x.file_name().cmp(&y.file_name()));
 
-        let images = bread_files.iter().filter(|&f| {
+        let images = bread_files
+            .iter()
+            .filter(|&f| {
                 let fname = f.file_name();
                 let name = fname.to_str().unwrap();
-            return
-                name.ends_with(".png") ||
-                    name.ends_with(".jpg") ||
-                    name.ends_with(".jpeg") ||
-                    name.ends_with(".gif");
-        }).map(|x| x.path().strip_prefix(base_dir).unwrap().to_path_buf()).collect();
+                return name.ends_with(".png")
+                    || name.ends_with(".jpg")
+                    || name.ends_with(".jpeg")
+                    || name.ends_with(".gif");
+            })
+            .map(|x| x.path().strip_prefix(base_dir).unwrap().to_path_buf())
+            .collect();
 
         return Ok(Bread {
-            date: NaiveDate::parse_from_str(bpath.file_name().unwrap().to_str().unwrap(), "%Y-%m-%d").unwrap(),
+            date: NaiveDate::parse_from_str(
+                bpath.file_name().unwrap().to_str().unwrap(),
+                "%Y-%m-%d",
+            )
+            .unwrap(),
             rel_path: bpath.strip_prefix(base_dir).unwrap().to_path_buf(),
             path: bpath,
             note,
             rss_note,
-            images
+            images,
+            rendered: BreadRendered {
+                thumb: "".to_string(),
+                detail: "".to_string(),
+                rss_item: None,
+                title: "".to_string(),
+                url: "".to_string(),
+                detail_fname: "".to_string()
+            },
         });
     }
 }
 
-fn main() {
+struct GalleryConfig {
+    web_path: PathBuf,
+    data_path: PathBuf,
+    tpl_path: PathBuf,
+    thumbs_path: PathBuf,
+    base_url: String,
+    templates: HashMap<String, String>,
+    image_hashes: hash_dict::HashDict,
+}
+
+impl GalleryConfig {
+    fn template(&mut self, name: &str) -> Fallible<String> {
+        if let Some(text) = self.templates.get(name) {
+            return Ok(text.clone());
+        }
+
+        let mut tpl = String::new();
+        File::open(self.tpl_path.join(name))?.read_to_string(&mut tpl)?;
+        self.templates.insert(name.to_string(), tpl.clone());
+        Ok(tpl)
+    }
+}
+
+fn main() -> Fallible<()> {
+
+    let mut config = {
         let cwd = env::current_dir().unwrap();
-    let web_path = Path::new(&cwd).join("web");
+        let web_path = cwd.join("web");
         let data_path = web_path.join("data");
         let tpl_path = web_path.join("templates");
         let thumbs_path = web_path.join("thumbs");
 
-    let mut bread_dirs: Vec<DirEntry> = fs::read_dir(&data_path).unwrap().map(|e| e.unwrap()).collect();
+        GalleryConfig {
+            web_path,
+            data_path,
+            tpl_path,
+            thumbs_path,
+            base_url: "https://www.ondrovo.com/bread".into(),
+            templates: HashMap::new(),
+            image_hashes: hash_dict::HashDict::load(cwd.join(".hashes.txt"))?,
+        }
+    };
+
+    let mut bread_dirs: Vec<DirEntry> = fs::read_dir(&config.data_path)?.filter_map(|e| e.ok()).collect();
     bread_dirs.sort_by(|x, y| x.file_name().cmp(&y.file_name()));
 
-    let mut breads : Vec<Bread> = Vec::new();
+    let mut breads: Vec<Bread> = bread_dirs
+        .iter()
+        .filter_map(|p| Bread::parse(&config.web_path, &p).ok())
+        .collect();
 
-    for bread_dir in bread_dirs {
-        if let Ok(b) = Bread::parse(&web_path, &bread_dir) {
-            breads.push(b);
-        }
+    for i in 0..breads.len() {
+        let preceding = if i <= 0 { None } else {
+            match breads.get(i - 1) {
+                Some(b) => Some(b.to_link()),
+                None => None
             }
+        };
 
-    let mut main_tpl = String::new();
-    let mut thumb_tpl = String::new();
-    let mut detail_tpl = String::new();
-    let mut head_tpl = String::new();
-    File::open(tpl_path.join("index.html")).unwrap().read_to_string(&mut main_tpl).unwrap();
-    File::open(tpl_path.join("_thumb.html")).unwrap().read_to_string(&mut thumb_tpl).unwrap();
-    File::open(tpl_path.join("_head.html")).unwrap().read_to_string(&mut head_tpl).unwrap();
-    File::open(tpl_path.join("detail.html")).unwrap().read_to_string(&mut detail_tpl).unwrap();
+        let following = match breads.get(i + 1) {
+            Some(b) => Some(b.to_link()),
+            None => None
+        };
 
-    let mut thumbs = Vec::<String>::new();
+        let cur = breads.get_mut(i).unwrap();
 
-    let mut channel : Channel = ChannelBuilder::default()
+        cur.compile(&mut config, preceding, following)?;
+    }
+
+    let mut channel: Channel = ChannelBuilder::default()
         .title("Piggo's Bread Gallery")
         .link("https://www.ondrovo.com/bread")
         .description("Sourdough feed")
         .build()
         .unwrap();
 
-    let mut channel_items = Vec::<Item>::new();
-
-    let mut hashes = hash_dict::HashDict::load(cwd.join(".hashes.txt")).unwrap();
-    
-    // TODO separate thumbs by year and generate per-year pages
-    // TODO limit RSS to last N breads
-
-    for bread in &breads {
-        let date = bread.date.format("%Y/%m/%d").to_string();
-        let date_slug = bread.date.format("%Y-%m-%d").to_string();
-        let detail_file = date_slug.clone() + ".html";
-
-        println!("+ {}", date_slug);
-
-        let (img_path, img_alt) = bread.thumb_photo();
-        let note = if bread.note.is_empty() { "<i>There's no note about this bread.</i>" } else { &bread.note };
-        let rss_note = &bread.rss_note;
-
-        let thumb_fname = date_slug.clone() + "." + Path::new(&img_path).extension().unwrap().to_str().unwrap();
-        let thumb_path = thumbs_path.join(&thumb_fname);
-        let thumb_relpath = thumb_path.strip_prefix(&web_path).unwrap();
-
-        let image_path_encoded = utf8_percent_encode(thumb_relpath.to_str().unwrap(), DEFAULT_ENCODE_SET).to_string();
-
-        // TODO keep the original path in bread so we dont have to reconstruct it here
-        let image_real_path = web_path.join(img_path);
-
-        // Create the thumb
-        {
-            let mut img_file = fs::File::open(&image_real_path).unwrap();
-            let mut hasher = Blake2b::new();
-            io::copy(&mut img_file, &mut hasher).unwrap();
-            let hash = base64::encode(&hasher.result());
-
-            let hash_key = thumb_path.to_str().unwrap();
-            let old_hash = hashes.get(hash_key);
-            if old_hash.is_none() || !old_hash.unwrap().eq(&hash) {
-                println!("building thumb...");
-
-                let im = image::open(&image_real_path).unwrap();
-                let im = im.thumbnail(500, 500);
-                im.save(&thumb_path).unwrap();
-
-                hashes.put(hash_key.to_string(), hash);
-            }
-        }
-
-        // Prepare the thumb card for the gallery page
-        {
-            let thumb = thumb_tpl
-                .replace("{detail_url}", &detail_file)
-                .replace("{img_src}", &image_path_encoded)
-                .replace("{img_alt}", &img_alt)
-                .replace("{title}", &date);
+    config.image_hashes.save();
 
-            thumbs.push(thumb);
+    let mut start = breads.len() as i32 - 10;
+    if start < 0 {
+        start = 0;
     }
 
-        // Add to RSS
+    // rss
     {
-            let image_url : String = channel.link().to_string() + "/" + &image_path_encoded;
-
-            let link : String = channel.link().to_string() + "/" + &detail_file;
-            let mut guid = Guid::default();
-            guid.set_value(link.clone());
-            guid.set_permalink(true);
-
-            let date_formatted : Date<Utc> = chrono::Utc.from_local_date(&bread.date).unwrap();
-            let dt = date_formatted.and_hms(12,0,0);
-            
-            let mut descr = String::new();
-            if !rss_note.is_empty() {
-                descr.push_str(&(rss_note.to_string() + "<hr>"));
+        let mut channel_items = vec![];
+        for b in &breads[start as usize..] {
+            channel_items.push(b.rendered.rss_item.clone().unwrap());
         }
-            descr.push_str(note);
-            descr.push_str(&format!("<img src=\"{}\" alt=\"{}\"><p><i>Open the link for full-res photos ({} total)</i>", image_url, img_alt, bread.images.len()));
 
-            channel_items.push(ItemBuilder::default()
-                .title(date.clone())
-                .link(link.clone())
-                .description(descr)
-                .guid(guid)
-                .pub_date(dt.to_rfc2822())
-                .build().unwrap());
+        println!("Generating feed...");
+        let f = OpenOptions::new().write(true).truncate(true).create(true).open(config.web_path.join("feed.xml")).unwrap();
+        channel.set_items(channel_items);
+        channel.pretty_write_to(f, b' ', 2).unwrap();
     }
 
-        // Generate the detail page
+    // main page
     {
-            let win_title = format!("Bread from {}", date);
-        
-            let detail = detail_tpl
-                .replace("{head}", &head_tpl.replace("{title}", &win_title))
-                .replace("{title}", &win_title)
-                .replace("{date}", &date_slug)
-                .replace("{url}", &format!("https://www.ondrovo.com/bread/{}", detail_file))
-                .replace("{thumb_url}", &format!("https://www.ondrovo.com/bread/thumbs/{}", thumb_fname))
-                .replace("{heading}", &date)
-                .replace("{note}", note.trim());
+        // make thumbs go from the newest to the oldest
+        breads.reverse();
 
-            let mut pics = String::new();
-            for img in &bread.images {
-                pics.push_str(&format!("      <a href=\"{src}\"><img src=\"{src}\"></a>\n", src=&utf8_percent_encode(img.to_str().unwrap(), DEFAULT_ENCODE_SET).to_string()))
+        let mut thumbs_buf = String::new();
+        for b in &breads {
+            thumbs_buf.push_str(&b.rendered.thumb);
         }
 
-            let detail = detail.replace("{images}", &pics.trim());
-
-            let mut f = OpenOptions::new().write(true).truncate(true).create(true).open(web_path.join(detail_file)).unwrap();
-            f.write(detail.as_bytes()).unwrap();
-        }
-    }
-
-    hashes.save();
-
-    {
-        // make thumbs go from the newest to the oldest
-        thumbs.reverse();
-    
         println!("Building the gallery page");
-        let main = main_tpl.replace("{breads}", &thumbs.join("").trim())
-            .replace("{head}", &head_tpl.replace("{title}", "Piggo's breads").trim());
+        let main = config.template("index.html")?.replace("{breads}", &thumbs_buf.trim())
+            .replace("{head}", config.template("_head.html")?.replace("{title}", "Piggo's breads").trim());
 
-        let mut f = OpenOptions::new().write(true).truncate(true).create(true).open(web_path.join("index.html")).unwrap();
+        let mut f = OpenOptions::new().write(true).truncate(true).create(true).open(config.web_path.join("index.html")).unwrap();
         f.write(main.as_bytes()).unwrap();
     }
 
-    {
-        println!("Generating feed...");
-        let f = OpenOptions::new().write(true).truncate(true).create(true).open(web_path.join("feed.xml")).unwrap();
-        channel.set_items(channel_items);
-        channel.pretty_write_to(f, b' ', 2).unwrap();
-    }
+    Ok(())
 }

web/assets/style.css

@@ -94,3 +94,9 @@ a {
 #crumb a:hover {
     color: #ccc;
 }
+
+.prev, .next {
+  font-size: 90%;
+  padding: 0 1em;
+  
+}

web/data/2019-02-13/note.txt

@@ -0,0 +1 @@
+a little flat but A+ taste and cronch

web/data/2019-02-18/note.txt

@@ -0,0 +1,3 @@
+The previous bread came out a bit tough. I run out of bread flour then, so it was made from fine flour. May be why.
+
+This one is almost perfect, but it's still turning tough quickly. I'm investigating ways to keep it fresh longer... If you have a tip, please let me know!

web/templates/detail.html

@@ -25,7 +25,7 @@
     <meta itemprop="image" content="{thumb_url}">
 </head>
 <body>
-  <h1>{heading}</h1>
+<h1>{prev}<a href="index.html">{heading}</a>{next}</h1>
 
   <section class="BreadDetail">
     <div class="note">