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