110 lines
3.5 KiB
Rust
110 lines
3.5 KiB
Rust
use std::collections::HashMap;
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use tera::Value;
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use toml;
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use errors::Result;
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use super::{SortBy, InsertAnchor};
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static DEFAULT_PAGINATE_PATH: &'static str = "page";
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/// The front matter of every section
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#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
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pub struct SectionFrontMatter {
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/// <title> of the page
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pub title: Option<String>,
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/// Description in <meta> that appears when linked, e.g. on twitter
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pub description: Option<String>,
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/// Whether to sort by "date", "order" or "none". Defaults to `none`.
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#[serde(skip_serializing)]
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pub sort_by: Option<SortBy>,
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/// Optional template, if we want to specify which template to render for that page
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#[serde(skip_serializing)]
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pub template: Option<String>,
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/// How many pages to be displayed per paginated page. No pagination will happen if this isn't set
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#[serde(skip_serializing)]
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pub paginate_by: Option<usize>,
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/// Path to be used by pagination: the page number will be appended after it. Defaults to `page`.
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#[serde(skip_serializing)]
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pub paginate_path: Option<String>,
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/// Whether to insert a link for each header like in Github READMEs. Defaults to false
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/// The default template can be overridden by creating a `anchor-link.html` template and CSS will need to be
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/// written if you turn that on.
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pub insert_anchor: Option<InsertAnchor>,
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/// Whether to render that section or not. Defaults to `true`.
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/// Useful when the section is only there to organize things but is not meant
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/// to be used directly, like a posts section in a personal site
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#[serde(skip_serializing)]
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pub render: Option<bool>,
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/// Whether to redirect when landing on that section. Defaults to `None`.
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/// Useful for the same reason as `render` but when you don't want a 404 when
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/// landing on the root section page
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#[serde(skip_serializing)]
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pub redirect_to: Option<String>,
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/// Any extra parameter present in the front matter
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pub extra: Option<HashMap<String, Value>>,
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}
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impl SectionFrontMatter {
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pub fn parse(toml: &str) -> Result<SectionFrontMatter> {
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let mut f: SectionFrontMatter = match toml::from_str(toml) {
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Ok(d) => d,
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Err(e) => bail!(e),
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};
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if f.paginate_path.is_none() {
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f.paginate_path = Some(DEFAULT_PAGINATE_PATH.to_string());
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}
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if f.render.is_none() {
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f.render = Some(true);
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}
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if f.sort_by.is_none() {
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f.sort_by = Some(SortBy::None);
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}
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if f.insert_anchor.is_none() {
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f.insert_anchor = Some(InsertAnchor::None);
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}
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Ok(f)
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}
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/// Returns the current sorting method, defaults to `None` (== no sorting)
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pub fn sort_by(&self) -> SortBy {
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self.sort_by.unwrap()
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}
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/// Only applies to section, whether it is paginated or not.
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pub fn is_paginated(&self) -> bool {
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match self.paginate_by {
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Some(v) => v > 0,
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None => false
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}
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}
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pub fn should_render(&self) -> bool {
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self.render.unwrap()
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}
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}
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impl Default for SectionFrontMatter {
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fn default() -> SectionFrontMatter {
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SectionFrontMatter {
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title: None,
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description: None,
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sort_by: Some(SortBy::None),
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template: None,
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paginate_by: None,
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paginate_path: Some(DEFAULT_PAGINATE_PATH.to_string()),
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render: Some(true),
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redirect_to: None,
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insert_anchor: Some(InsertAnchor::None),
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extra: None,
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}
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}
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}
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