zola/components/site/src/lib.rs
2019-01-07 21:03:34 +01:00

1033 lines
36 KiB
Rust

extern crate glob;
extern crate rayon;
extern crate serde;
extern crate tera;
#[macro_use]
extern crate serde_derive;
extern crate sass_rs;
#[macro_use]
extern crate errors;
extern crate config;
extern crate front_matter;
extern crate imageproc;
extern crate library;
extern crate search;
extern crate templates;
extern crate utils;
#[cfg(test)]
extern crate tempfile;
use std::collections::HashMap;
use std::fs::{copy, create_dir_all, remove_dir_all};
use std::path::{Path, PathBuf};
use std::sync::{Arc, Mutex};
use glob::glob;
use rayon::prelude::*;
use sass_rs::{compile_file, Options as SassOptions, OutputStyle};
use tera::{Context, Tera};
use config::{get_config, Config};
use errors::{Result, ResultExt};
use front_matter::InsertAnchor;
use library::{
find_taxonomies, sort_actual_pages_by_date, Library, Page, Paginator, Section, Taxonomy,
};
use templates::{global_fns, render_redirect_template, ZOLA_TERA};
use utils::fs::{copy_directory, create_directory, create_file, ensure_directory_exists};
use utils::net::get_available_port;
use utils::templates::{render_template, rewrite_theme_paths};
/// The sitemap only needs links and potentially date so we trim down
/// all pages to only that
#[derive(Debug, Serialize)]
struct SitemapEntry {
permalink: String,
date: Option<String>,
}
impl SitemapEntry {
pub fn new(permalink: String, date: Option<String>) -> SitemapEntry {
SitemapEntry { permalink, date }
}
}
#[derive(Debug)]
pub struct Site {
/// The base path of the zola site
pub base_path: PathBuf,
/// The parsed config for the site
pub config: Config,
pub tera: Tera,
imageproc: Arc<Mutex<imageproc::Processor>>,
// the live reload port to be used if there is one
pub live_reload: Option<u16>,
pub output_path: PathBuf,
content_path: PathBuf,
pub static_path: PathBuf,
pub taxonomies: Vec<Taxonomy>,
/// A map of all .md files (section and pages) and their permalink
/// We need that if there are relative links in the content that need to be resolved
pub permalinks: HashMap<String, String>,
/// Contains all pages and sections of the site
pub library: Library,
}
impl Site {
/// Parse a site at the given path. Defaults to the current dir
/// Passing in a path is only used in tests
pub fn new<P: AsRef<Path>>(path: P, config_file: &str) -> Result<Site> {
let path = path.as_ref();
let mut config = get_config(path, config_file);
config.load_extra_syntaxes(path)?;
let tpl_glob =
format!("{}/{}", path.to_string_lossy().replace("\\", "/"), "templates/**/*.*ml");
// Only parsing as we might be extending templates from themes and that would error
// as we haven't loaded them yet
let mut tera = Tera::parse(&tpl_glob).chain_err(|| "Error parsing templates")?;
if let Some(theme) = config.theme.clone() {
// Grab data from the extra section of the theme
config.merge_with_theme(&path.join("themes").join(&theme).join("theme.toml"))?;
// Test that the templates folder exist for that theme
let theme_path = path.join("themes").join(&theme);
if !theme_path.join("templates").exists() {
bail!("Theme `{}` is missing a templates folder", theme);
}
let theme_tpl_glob = format!(
"{}/{}",
path.to_string_lossy().replace("\\", "/"),
format!("themes/{}/templates/**/*.*ml", theme)
);
let mut tera_theme =
Tera::parse(&theme_tpl_glob).chain_err(|| "Error parsing templates from themes")?;
rewrite_theme_paths(&mut tera_theme, &theme);
// TODO: same as below
if theme_path.join("templates").join("robots.txt").exists() {
tera_theme
.add_template_file(theme_path.join("templates").join("robots.txt"), None)?;
}
tera_theme.build_inheritance_chains()?;
tera.extend(&tera_theme)?;
}
tera.extend(&ZOLA_TERA)?;
// the `extend` above already does it but hey
tera.build_inheritance_chains()?;
// TODO: Tera doesn't use globset right now so we can load the robots.txt as part
// of the glob above, therefore we load it manually if it exists.
if path.join("templates").join("robots.txt").exists() {
tera.add_template_file(path.join("templates").join("robots.txt"), Some("robots.txt"))?;
}
let content_path = path.join("content");
let static_path = path.join("static");
let imageproc =
imageproc::Processor::new(content_path.clone(), &static_path, &config.base_url);
let site = Site {
base_path: path.to_path_buf(),
config,
tera,
imageproc: Arc::new(Mutex::new(imageproc)),
live_reload: None,
output_path: path.join("public"),
content_path,
static_path,
taxonomies: Vec::new(),
permalinks: HashMap::new(),
// We will allocate it properly later on
library: Library::new(0, 0, false),
};
Ok(site)
}
/// The index sections are ALWAYS at those paths
/// There are one index section for the basic language + 1 per language
fn index_section_paths(&self) -> Vec<(PathBuf, Option<String>)> {
let mut res = vec![(self.content_path.join("_index.md"), None)];
for language in &self.config.languages {
res.push((
self.content_path.join(format!("_index.{}.md", language.code)),
Some(language.code.clone()),
));
}
res
}
/// We avoid the port the server is going to use as it's not bound yet
/// when calling this function and we could end up having tried to bind
/// both http and websocket server to the same port
pub fn enable_live_reload(&mut self, port_to_avoid: u16) {
self.live_reload = get_available_port(port_to_avoid);
}
/// Get all the orphan (== without section) pages in the site
pub fn get_all_orphan_pages(&self) -> Vec<&Page> {
self.library.get_all_orphan_pages()
}
pub fn set_base_url(&mut self, base_url: String) {
let mut imageproc = self.imageproc.lock().expect("Couldn't lock imageproc (set_base_url)");
imageproc.set_base_url(&base_url);
self.config.base_url = base_url;
}
pub fn set_output_path<P: AsRef<Path>>(&mut self, path: P) {
self.output_path = path.as_ref().to_path_buf();
}
/// Reads all .md files in the `content` directory and create pages/sections
/// out of them
pub fn load(&mut self) -> Result<()> {
let base_path = self.base_path.to_string_lossy().replace("\\", "/");
let content_glob = format!("{}/{}", base_path, "content/**/*.md");
let (section_entries, page_entries): (Vec<_>, Vec<_>) = glob(&content_glob)
.expect("Invalid glob")
.filter_map(|e| e.ok())
.filter(|e| !e.as_path().file_name().unwrap().to_str().unwrap().starts_with('.'))
.partition(|entry| {
entry.as_path().file_name().unwrap().to_str().unwrap().starts_with("_index.")
});
self.library =
Library::new(page_entries.len(), section_entries.len(), self.config.is_multilingual());
let sections = {
let config = &self.config;
section_entries
.into_par_iter()
.map(|entry| {
let path = entry.as_path();
Section::from_file(path, config)
})
.collect::<Vec<_>>()
};
let pages = {
let config = &self.config;
page_entries
.into_par_iter()
.map(|entry| {
let path = entry.as_path();
Page::from_file(path, config)
})
.collect::<Vec<_>>()
};
// Kinda duplicated code for add_section/add_page but necessary to do it that
// way because of the borrow checker
for section in sections {
let s = section?;
self.add_section(s, false)?;
}
// Insert a default index section for each language if necessary so we don't need to create
// a _index.md to render the index page at the root of the site
for (index_path, lang) in self.index_section_paths() {
if let Some(ref index_section) = self.library.get_section(&index_path) {
if self.config.build_search_index && !index_section.meta.in_search_index {
bail!(
"You have enabled search in the config but disabled it in the index section: \
either turn off the search in the config or remote `in_search_index = true` from the \
section front-matter."
)
}
}
// Not in else because of borrow checker
if !self.library.contains_section(&index_path) {
let mut index_section = Section::default();
index_section.file.parent = self.content_path.clone();
index_section.file.filename =
index_path.file_name().unwrap().to_string_lossy().to_string();
if let Some(ref l) = lang {
index_section.file.name = format!("_index.{}", l);
index_section.permalink = self.config.make_permalink(l);
let filename = format!("_index.{}.md", l);
index_section.file.path = self.content_path.join(&filename);
index_section.file.relative = filename;
index_section.lang = index_section.file.find_language(&self.config)?;
} else {
index_section.file.name = "_index".to_string();
index_section.permalink = self.config.make_permalink("");
index_section.file.path = self.content_path.join("_index.md");
index_section.file.relative = "_index.md".to_string();
}
self.library.insert_section(index_section);
}
}
let mut pages_insert_anchors = HashMap::new();
for page in pages {
let p = page?;
pages_insert_anchors.insert(
p.file.path.clone(),
self.find_parent_section_insert_anchor(&p.file.parent.clone(), &p.lang),
);
self.add_page(p, false)?;
}
self.register_early_global_fns();
self.populate_sections();
self.render_markdown()?;
self.populate_taxonomies()?;
self.register_tera_global_fns();
Ok(())
}
/// Render the markdown of all pages/sections
/// Used in a build and in `serve` if a shortcode has changed
pub fn render_markdown(&mut self) -> Result<()> {
// Another silly thing needed to not borrow &self in parallel and
// make the borrow checker happy
let permalinks = &self.permalinks;
let tera = &self.tera;
let config = &self.config;
// This is needed in the first place because of silly borrow checker
let mut pages_insert_anchors = HashMap::new();
for (_, p) in self.library.pages() {
pages_insert_anchors.insert(
p.file.path.clone(),
self.find_parent_section_insert_anchor(&p.file.parent.clone(), &p.lang),
);
}
self.library
.pages_mut()
.values_mut()
.collect::<Vec<_>>()
.par_iter_mut()
.map(|page| {
let insert_anchor = pages_insert_anchors[&page.file.path];
page.render_markdown(permalinks, tera, config, insert_anchor)
})
.collect::<Result<()>>()?;
self.library
.sections_mut()
.values_mut()
.collect::<Vec<_>>()
.par_iter_mut()
.map(|section| section.render_markdown(permalinks, tera, config))
.collect::<Result<()>>()?;
Ok(())
}
/// Adds global fns that are to be available to shortcodes while
/// markdown
pub fn register_early_global_fns(&mut self) {
self.tera.register_function(
"get_url",
global_fns::make_get_url(self.permalinks.clone(), self.config.clone()),
);
self.tera.register_function(
"resize_image",
global_fns::make_resize_image(self.imageproc.clone()),
);
}
pub fn register_tera_global_fns(&mut self) {
self.tera.register_function("trans", global_fns::make_trans(self.config.clone()));
self.tera.register_function("get_page", global_fns::make_get_page(&self.library));
self.tera.register_function("get_section", global_fns::make_get_section(&self.library));
self.tera.register_function(
"get_taxonomy",
global_fns::make_get_taxonomy(&self.taxonomies, &self.library),
);
self.tera.register_function(
"get_taxonomy_url",
global_fns::make_get_taxonomy_url(&self.taxonomies),
);
self.tera.register_function(
"load_data",
global_fns::make_load_data(self.content_path.clone(), self.base_path.clone()),
);
}
/// Add a page to the site
/// The `render` parameter is used in the serve command, when rebuilding a page.
/// If `true`, it will also render the markdown for that page
/// Returns the previous page struct if there was one at the same path
pub fn add_page(&mut self, mut page: Page, render: bool) -> Result<Option<Page>> {
self.permalinks.insert(page.file.relative.clone(), page.permalink.clone());
if render {
let insert_anchor =
self.find_parent_section_insert_anchor(&page.file.parent, &page.lang);
page.render_markdown(&self.permalinks, &self.tera, &self.config, insert_anchor)?;
}
let prev = self.library.remove_page(&page.file.path);
self.library.insert_page(page);
Ok(prev)
}
/// Add a section to the site
/// The `render` parameter is used in the serve command, when rebuilding a page.
/// If `true`, it will also render the markdown for that page
/// Returns the previous section struct if there was one at the same path
pub fn add_section(&mut self, mut section: Section, render: bool) -> Result<Option<Section>> {
self.permalinks.insert(section.file.relative.clone(), section.permalink.clone());
if render {
section.render_markdown(&self.permalinks, &self.tera, &self.config)?;
}
let prev = self.library.remove_section(&section.file.path);
self.library.insert_section(section);
Ok(prev)
}
/// Finds the insert_anchor for the parent section of the directory at `path`.
/// Defaults to `AnchorInsert::None` if no parent section found
pub fn find_parent_section_insert_anchor(
&self,
parent_path: &PathBuf,
lang: &Option<String>,
) -> InsertAnchor {
let parent = if let Some(ref l) = lang {
parent_path.join(format!("_index.{}.md", l))
} else {
parent_path.join("_index.md")
};
match self.library.get_section(&parent) {
Some(s) => s.meta.insert_anchor_links,
None => InsertAnchor::None,
}
}
/// Find out the direct subsections of each subsection if there are some
/// as well as the pages for each section
pub fn populate_sections(&mut self) {
self.library.populate_sections();
}
/// Find all the tags and categories if it's asked in the config
pub fn populate_taxonomies(&mut self) -> Result<()> {
if self.config.taxonomies.is_empty() {
return Ok(());
}
self.taxonomies = find_taxonomies(&self.config, &self.library)?;
Ok(())
}
/// Inject live reload script tag if in live reload mode
fn inject_livereload(&self, html: String) -> String {
if let Some(port) = self.live_reload {
return html.replace(
"</body>",
&format!(
r#"<script src="/livereload.js?port={}&mindelay=10"></script></body>"#,
port
),
);
}
html
}
/// Copy the main `static` folder and the theme `static` folder if a theme is used
pub fn copy_static_directories(&self) -> Result<()> {
// The user files will overwrite the theme files
if let Some(ref theme) = self.config.theme {
copy_directory(
&self.base_path.join("themes").join(theme).join("static"),
&self.output_path,
)?;
}
// We're fine with missing static folders
if self.static_path.exists() {
copy_directory(&self.static_path, &self.output_path)?;
}
Ok(())
}
pub fn num_img_ops(&self) -> usize {
let imageproc = self.imageproc.lock().expect("Couldn't lock imageproc (num_img_ops)");
imageproc.num_img_ops()
}
pub fn process_images(&self) -> Result<()> {
let mut imageproc =
self.imageproc.lock().expect("Couldn't lock imageproc (process_images)");
imageproc.prune()?;
imageproc.do_process()
}
/// Deletes the `public` directory if it exists
pub fn clean(&self) -> Result<()> {
if self.output_path.exists() {
// Delete current `public` directory so we can start fresh
remove_dir_all(&self.output_path).chain_err(|| "Couldn't delete output directory")?;
}
Ok(())
}
/// Renders a single content page
pub fn render_page(&self, page: &Page) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
// Copy the nesting of the content directory if we have sections for that page
let mut current_path = self.output_path.to_path_buf();
for component in page.path.split('/') {
current_path.push(component);
if !current_path.exists() {
create_directory(&current_path)?;
}
}
// Make sure the folder exists
create_directory(&current_path)?;
// Finally, create a index.html file there with the page rendered
let output = page.render_html(&self.tera, &self.config, &self.library)?;
create_file(&current_path.join("index.html"), &self.inject_livereload(output))?;
// Copy any asset we found previously into the same directory as the index.html
for asset in &page.assets {
let asset_path = asset.as_path();
copy(
&asset_path,
&current_path
.join(asset_path.file_name().expect("Couldn't get filename from page asset")),
)?;
}
Ok(())
}
/// Deletes the `public` directory and builds the site
pub fn build(&self) -> Result<()> {
self.clean()?;
// Render aliases first to allow overwriting
self.render_aliases()?;
self.render_sections()?;
self.render_orphan_pages()?;
self.render_sitemap()?;
if self.config.generate_rss {
let pages = if self.config.is_multilingual() {
self.library
.pages_values()
.iter()
.filter(|p| p.lang.is_none())
.map(|p| *p)
.collect()
} else {
self.library.pages_values()
};
self.render_rss_feed(pages, None)?;
}
for lang in &self.config.languages {
if !lang.rss {
continue;
}
let pages = self
.library
.pages_values()
.iter()
.filter(|p| if let Some(ref l) = p.lang { l == &lang.code } else { false })
.map(|p| *p)
.collect();
self.render_rss_feed(pages, Some(&PathBuf::from(lang.code.clone())))?;
}
self.render_404()?;
self.render_robots()?;
self.render_taxonomies()?;
if let Some(ref theme) = self.config.theme {
let theme_path = self.base_path.join("themes").join(theme);
if theme_path.join("sass").exists() {
self.compile_sass(&theme_path)?;
}
}
if self.config.compile_sass {
self.compile_sass(&self.base_path)?;
}
self.process_images()?;
self.copy_static_directories()?;
if self.config.build_search_index {
self.build_search_index()?;
}
Ok(())
}
pub fn build_search_index(&self) -> Result<()> {
// index first
create_file(
&self.output_path.join(&format!("search_index.{}.js", self.config.default_language)),
&format!(
"window.searchIndex = {};",
search::build_index(&self.config.default_language, &self.library)?
),
)?;
// then elasticlunr.min.js
create_file(&self.output_path.join("elasticlunr.min.js"), search::ELASTICLUNR_JS)?;
Ok(())
}
pub fn compile_sass(&self, base_path: &Path) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let sass_path = {
let mut sass_path = PathBuf::from(base_path);
sass_path.push("sass");
sass_path
};
let mut options = SassOptions::default();
options.output_style = OutputStyle::Compressed;
let mut compiled_paths = self.compile_sass_glob(&sass_path, "scss", &options.clone())?;
options.indented_syntax = true;
compiled_paths.extend(self.compile_sass_glob(&sass_path, "sass", &options)?);
compiled_paths.sort();
for window in compiled_paths.windows(2) {
if window[0].1 == window[1].1 {
bail!(
"SASS path conflict: \"{}\" and \"{}\" both compile to \"{}\"",
window[0].0.display(),
window[1].0.display(),
window[0].1.display(),
);
}
}
Ok(())
}
fn compile_sass_glob(
&self,
sass_path: &Path,
extension: &str,
options: &SassOptions,
) -> Result<Vec<(PathBuf, PathBuf)>> {
let glob_string = format!("{}/**/*.{}", sass_path.display(), extension);
let files = glob(&glob_string)
.expect("Invalid glob for sass")
.filter_map(|e| e.ok())
.filter(|entry| {
!entry.as_path().file_name().unwrap().to_string_lossy().starts_with('_')
})
.collect::<Vec<_>>();
let mut compiled_paths = Vec::new();
for file in files {
let css = compile_file(&file, options.clone())?;
let path_inside_sass = file.strip_prefix(&sass_path).unwrap();
let parent_inside_sass = path_inside_sass.parent();
let css_output_path = self.output_path.join(path_inside_sass).with_extension("css");
if parent_inside_sass.is_some() {
create_dir_all(&css_output_path.parent().unwrap())?;
}
create_file(&css_output_path, &css)?;
compiled_paths.push((path_inside_sass.to_owned(), css_output_path));
}
Ok(compiled_paths)
}
pub fn render_aliases(&self) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
for (_, page) in self.library.pages() {
for alias in &page.meta.aliases {
let mut output_path = self.output_path.to_path_buf();
let mut split = alias.split('/').collect::<Vec<_>>();
// If the alias ends with an html file name, use that instead of mapping
// as a path containing an `index.html`
let page_name = match split.pop() {
Some(part) if part.ends_with(".html") => part,
Some(part) => {
split.push(part);
"index.html"
}
None => "index.html",
};
for component in split {
output_path.push(&component);
if !output_path.exists() {
create_directory(&output_path)?;
}
}
create_file(
&output_path.join(page_name),
&render_redirect_template(&page.permalink, &self.tera)?,
)?;
}
}
Ok(())
}
/// Renders 404.html
pub fn render_404(&self) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let mut context = Context::new();
context.insert("config", &self.config);
let output = render_template("404.html", &self.tera, &context, &self.config.theme)?;
create_file(&self.output_path.join("404.html"), &self.inject_livereload(output))
}
/// Renders robots.txt
pub fn render_robots(&self) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let mut context = Context::new();
context.insert("config", &self.config);
create_file(
&self.output_path.join("robots.txt"),
&render_template("robots.txt", &self.tera, &context, &self.config.theme)?,
)
}
/// Renders all taxonomies with at least one non-draft post
pub fn render_taxonomies(&self) -> Result<()> {
for taxonomy in &self.taxonomies {
self.render_taxonomy(taxonomy)?;
}
Ok(())
}
fn render_taxonomy(&self, taxonomy: &Taxonomy) -> Result<()> {
if taxonomy.items.is_empty() {
return Ok(());
}
ensure_directory_exists(&self.output_path)?;
let output_path = if let Some(ref lang) = taxonomy.kind.lang {
let mid_path = self.output_path.join(lang);
create_directory(&mid_path)?;
mid_path.join(&taxonomy.kind.name)
} else {
self.output_path.join(&taxonomy.kind.name)
};
let list_output = taxonomy.render_all_terms(&self.tera, &self.config, &self.library)?;
create_directory(&output_path)?;
create_file(&output_path.join("index.html"), &self.inject_livereload(list_output))?;
taxonomy
.items
.par_iter()
.map(|item| {
let path = output_path.join(&item.slug);
if taxonomy.kind.is_paginated() {
self.render_paginated(
&path,
&Paginator::from_taxonomy(&taxonomy, item, &self.library),
)?;
} else {
let single_output =
taxonomy.render_term(item, &self.tera, &self.config, &self.library)?;
create_directory(&path)?;
create_file(&path.join("index.html"), &self.inject_livereload(single_output))?;
}
if taxonomy.kind.rss {
self.render_rss_feed(
item.pages.iter().map(|p| self.library.get_page_by_key(*p)).collect(),
Some(&PathBuf::from(format!("{}/{}", taxonomy.kind.name, item.slug))),
)
} else {
Ok(())
}
})
.collect::<Result<()>>()
}
/// What it says on the tin
pub fn render_sitemap(&self) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let mut context = Context::new();
let mut pages = self
.library
.pages_values()
.iter()
.filter(|p| !p.is_draft())
.map(|p| {
let date = match p.meta.date {
Some(ref d) => Some(d.to_string()),
None => None,
};
SitemapEntry::new(p.permalink.clone(), date)
})
.collect::<Vec<_>>();
pages.sort_by(|a, b| a.permalink.cmp(&b.permalink));
context.insert("pages", &pages);
let mut sections = self
.library
.sections_values()
.iter()
.map(|s| SitemapEntry::new(s.permalink.clone(), None))
.collect::<Vec<_>>();
for section in
self.library.sections_values().iter().filter(|s| s.meta.paginate_by.is_some())
{
let number_pagers = (section.pages.len() as f64
/ section.meta.paginate_by.unwrap() as f64)
.ceil() as isize;
for i in 1..=number_pagers {
let permalink =
format!("{}{}/{}/", section.permalink, section.meta.paginate_path, i);
sections.push(SitemapEntry::new(permalink, None))
}
}
sections.sort_by(|a, b| a.permalink.cmp(&b.permalink));
context.insert("sections", &sections);
let mut taxonomies = vec![];
for taxonomy in &self.taxonomies {
let name = &taxonomy.kind.name;
let mut terms = vec![];
terms.push(SitemapEntry::new(self.config.make_permalink(name), None));
for item in &taxonomy.items {
terms.push(SitemapEntry::new(
self.config.make_permalink(&format!("{}/{}", &name, item.slug)),
None,
));
if taxonomy.kind.is_paginated() {
let number_pagers = (item.pages.len() as f64
/ taxonomy.kind.paginate_by.unwrap() as f64)
.ceil() as isize;
for i in 1..=number_pagers {
let permalink = self.config.make_permalink(&format!(
"{}/{}/{}/{}",
name,
item.slug,
taxonomy.kind.paginate_path(),
i
));
terms.push(SitemapEntry::new(permalink, None))
}
}
}
terms.sort_by(|a, b| a.permalink.cmp(&b.permalink));
taxonomies.push(terms);
}
context.insert("taxonomies", &taxonomies);
context.insert("config", &self.config);
let sitemap = &render_template("sitemap.xml", &self.tera, &context, &self.config.theme)?;
create_file(&self.output_path.join("sitemap.xml"), sitemap)?;
Ok(())
}
/// Renders a RSS feed for the given path and at the given path
/// If both arguments are `None`, it will render only the RSS feed for the whole
/// site at the root folder.
pub fn render_rss_feed(
&self,
all_pages: Vec<&Page>,
base_path: Option<&PathBuf>,
) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let mut context = Context::new();
let mut pages = all_pages
.into_iter()
.filter(|p| p.meta.date.is_some() && !p.is_draft())
.collect::<Vec<_>>();
// Don't generate a RSS feed if none of the pages has a date
if pages.is_empty() {
return Ok(());
}
pages.par_sort_unstable_by(sort_actual_pages_by_date);
context.insert("last_build_date", &pages[0].meta.date.clone());
// limit to the last n elements if the limit is set; otherwise use all.
let num_entries = self.config.rss_limit.unwrap_or_else(|| pages.len());
let p = pages
.iter()
.take(num_entries)
.map(|x| x.to_serialized_basic(&self.library))
.collect::<Vec<_>>();
context.insert("pages", &p);
context.insert("config", &self.config);
let rss_feed_url = if let Some(ref base) = base_path {
self.config.make_permalink(&base.join("rss.xml").to_string_lossy().replace('\\', "/"))
} else {
self.config.make_permalink("rss.xml")
};
context.insert("feed_url", &rss_feed_url);
let feed = &render_template("rss.xml", &self.tera, &context, &self.config.theme)?;
if let Some(ref base) = base_path {
let mut output_path = self.output_path.clone();
for component in base.components() {
output_path.push(component);
if !output_path.exists() {
create_directory(&output_path)?;
}
}
create_file(&output_path.join("rss.xml"), feed)?;
} else {
create_file(&self.output_path.join("rss.xml"), feed)?;
}
Ok(())
}
/// Renders a single section
pub fn render_section(&self, section: &Section, render_pages: bool) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let mut output_path = self.output_path.clone();
if let Some(ref lang) = section.lang {
output_path.push(lang);
if !output_path.exists() {
create_directory(&output_path)?;
}
}
for component in &section.file.components {
output_path.push(component);
if !output_path.exists() {
create_directory(&output_path)?;
}
}
// Copy any asset we found previously into the same directory as the index.html
for asset in &section.assets {
let asset_path = asset.as_path();
copy(
&asset_path,
&output_path.join(
asset_path.file_name().expect("Failed to get asset filename for section"),
),
)?;
}
if render_pages {
section
.pages
.par_iter()
.map(|k| self.render_page(self.library.get_page_by_key(*k)))
.collect::<Result<()>>()?;
}
if !section.meta.render {
return Ok(());
}
if let Some(ref redirect_to) = section.meta.redirect_to {
let permalink = self.config.make_permalink(redirect_to);
create_file(
&output_path.join("index.html"),
&render_redirect_template(&permalink, &self.tera)?,
)?;
return Ok(());
}
if section.meta.is_paginated() {
self.render_paginated(&output_path, &Paginator::from_section(&section, &self.library))?;
} else {
let output = section.render_html(&self.tera, &self.config, &self.library)?;
create_file(&output_path.join("index.html"), &self.inject_livereload(output))?;
}
Ok(())
}
/// Used only on reload
pub fn render_index(&self) -> Result<()> {
self.render_section(
&self
.library
.get_section(&self.content_path.join("_index.md"))
.expect("Failed to get index section"),
false,
)
}
/// Renders all sections
pub fn render_sections(&self) -> Result<()> {
self.library
.sections_values()
.into_par_iter()
.map(|s| self.render_section(s, true))
.collect::<Result<()>>()
}
/// Renders all pages that do not belong to any sections
pub fn render_orphan_pages(&self) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
for page in self.get_all_orphan_pages() {
self.render_page(page)?;
}
Ok(())
}
/// Renders a list of pages when the section/index is wanting pagination.
pub fn render_paginated(&self, output_path: &Path, paginator: &Paginator) -> Result<()> {
ensure_directory_exists(&self.output_path)?;
let folder_path = output_path.join(&paginator.paginate_path);
create_directory(&folder_path)?;
paginator
.pagers
.par_iter()
.map(|pager| {
let page_path = folder_path.join(&format!("{}", pager.index));
create_directory(&page_path)?;
let output =
paginator.render_pager(pager, &self.config, &self.tera, &self.library)?;
if pager.index > 1 {
create_file(&page_path.join("index.html"), &self.inject_livereload(output))?;
} else {
create_file(&output_path.join("index.html"), &self.inject_livereload(output))?;
create_file(
&page_path.join("index.html"),
&render_redirect_template(&paginator.permalink, &self.tera)?,
)?;
}
Ok(())
})
.collect::<Result<()>>()
}
}