98 lines
3.3 KiB
Rust
98 lines
3.3 KiB
Rust
use std::path::{Path, PathBuf};
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use std::result::Result as StdResult;
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use tera::{Tera, Context};
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use serde::ser::{SerializeStruct, self};
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use config::Config;
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use front_matter::{FrontMatter, split_content};
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use errors::{Result, ResultExt};
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use utils::{read_file, find_content_components};
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use page::Page;
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#[derive(Clone, Debug, PartialEq)]
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pub struct Section {
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/// The _index.md full path
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pub file_path: PathBuf,
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/// Path of the directory containing the _index.md file
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pub parent_path: PathBuf,
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/// The folder names from `content` to this section file
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pub components: Vec<String>,
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/// The relative URL of the page
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pub url: String,
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/// The full URL for that page
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pub permalink: String,
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/// The front matter meta-data
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pub meta: FrontMatter,
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/// All direct pages of that section
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pub pages: Vec<Page>,
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/// All direct subsections
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pub subsections: Vec<Section>,
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}
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impl Section {
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pub fn new(file_path: &Path, meta: FrontMatter) -> Section {
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Section {
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file_path: file_path.to_path_buf(),
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parent_path: file_path.parent().unwrap().to_path_buf(),
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components: vec![],
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url: "".to_string(),
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permalink: "".to_string(),
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meta: meta,
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pages: vec![],
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subsections: vec![],
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}
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}
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pub fn parse(file_path: &Path, content: &str, config: &Config) -> Result<Section> {
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let (meta, _) = split_content(file_path, content)?;
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let mut section = Section::new(file_path, meta);
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section.components = find_content_components(§ion.file_path);
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section.url = section.components.join("/");
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section.permalink = section.components.join("/");
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section.permalink = config.make_permalink(§ion.url);
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Ok(section)
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}
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/// Read and parse a .md file into a Page struct
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pub fn from_file<P: AsRef<Path>>(path: P, config: &Config) -> Result<Section> {
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let path = path.as_ref();
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let content = read_file(path)?;
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Section::parse(path, &content, config)
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}
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/// Renders the page using the default layout, unless specified in front-matter
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pub fn render_html(&self, tera: &Tera, config: &Config) -> Result<String> {
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let tpl_name = match self.meta.template {
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Some(ref l) => l.to_string(),
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None => "section.html".to_string()
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};
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// TODO: create a helper to create context to ensure all contexts
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// have the same names
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let mut context = Context::new();
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context.add("config", config);
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context.add("section", self);
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tera.render(&tpl_name, &context)
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.chain_err(|| format!("Failed to render section '{}'", self.file_path.display()))
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}
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}
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impl ser::Serialize for Section {
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fn serialize<S>(&self, serializer: S) -> StdResult<S::Ok, S::Error> where S: ser::Serializer {
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let mut state = serializer.serialize_struct("section", 6)?;
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state.serialize_field("title", &self.meta.title)?;
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state.serialize_field("description", &self.meta.description)?;
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state.serialize_field("url", &format!("/{}", self.url))?;
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state.serialize_field("permalink", &self.permalink)?;
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state.serialize_field("pages", &self.pages)?;
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state.serialize_field("subsections", &self.subsections)?;
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state.end()
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}
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}
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