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zola/components/config/src/config.rs

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use std::collections::HashMap;
use std::path::{Path, PathBuf};
use chrono::Utc;
use globset::{Glob, GlobSet, GlobSetBuilder};
use serde_derive::{Deserialize, Serialize};
use syntect::parsing::{SyntaxSet, SyntaxSetBuilder};
use toml;
use toml::Value as Toml;
use crate::highlighting::THEME_SET;
use crate::theme::Theme;
use errors::{bail, Error, Result};
use utils::fs::read_file_with_error;
// We want a default base url for tests
static DEFAULT_BASE_URL: &str = "http://a-website.com";
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum Mode {
Build,
Serve,
Check,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(default)]
pub struct Language {
/// The language code
pub code: String,
/// Whether to generate a RSS feed for that language, defaults to `false`
pub rss: bool,
/// Whether to generate search index for that language, defaults to `false`
pub search: bool,
}
impl Default for Language {
fn default() -> Language {
Language { code: String::new(), rss: false, search: false }
}
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(default)]
pub struct Taxonomy {
/// The name used in the URL, usually the plural
pub name: String,
/// If this is set, the list of individual taxonomy term page will be paginated
/// by this much
pub paginate_by: Option<usize>,
pub paginate_path: Option<String>,
/// Whether to generate a RSS feed only for each taxonomy term, defaults to false
pub rss: bool,
/// The language for that taxonomy, only used in multilingual sites.
/// Defaults to the config `default_language` if not set
pub lang: String,
}
impl Taxonomy {
pub fn is_paginated(&self) -> bool {
if let Some(paginate_by) = self.paginate_by {
paginate_by > 0
} else {
false
}
}
pub fn paginate_path(&self) -> &str {
if let Some(ref path) = self.paginate_path {
path
} else {
"page"
}
}
}
impl Default for Taxonomy {
fn default() -> Taxonomy {
Taxonomy {
name: String::new(),
paginate_by: None,
paginate_path: None,
rss: false,
lang: String::new(),
}
}
}
type TranslateTerm = HashMap<String, String>;
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(default)]
pub struct LinkChecker {
/// Skip link checking for these URL prefixes
pub skip_prefixes: Vec<String>,
/// Skip anchor checking for these URL prefixes
pub skip_anchor_prefixes: Vec<String>,
}
impl Default for LinkChecker {
fn default() -> LinkChecker {
LinkChecker { skip_prefixes: Vec::new(), skip_anchor_prefixes: Vec::new() }
}
}
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(default)]
pub struct Config {
/// Base URL of the site, the only required config argument
pub base_url: String,
/// Theme to use
pub theme: Option<String>,
/// Title of the site. Defaults to None
pub title: Option<String>,
/// Description of the site
pub description: Option<String>,
/// The language used in the site. Defaults to "en"
pub default_language: String,
/// The list of supported languages outside of the default one
pub languages: Vec<Language>,
/// Languages list and translated strings
///
/// The `String` key of `HashMap` is a language name, the value should be toml crate `Table`
/// with String key representing term and value another `String` representing its translation.
///
/// The attribute is intentionally not public, use `get_translation()` method for translating
/// key into different language.
translations: HashMap<String, TranslateTerm>,
/// Whether to slugify page and taxonomy URLs (disable for UTF-8 URLs)
pub slugify_paths: bool,
/// Whether to highlight all code blocks found in markdown files. Defaults to false
pub highlight_code: bool,
/// Which themes to use for code highlighting. See Readme for supported themes
/// Defaults to "base16-ocean-dark"
pub highlight_theme: String,
/// Whether to generate RSS. Defaults to false
pub generate_rss: bool,
/// The number of articles to include in the RSS feed. Defaults to including all items.
pub rss_limit: Option<usize>,
/// If set, files from static/ will be hardlinked instead of copied to the output dir.
pub hard_link_static: bool,
pub taxonomies: Vec<Taxonomy>,
/// Whether to compile the `sass` directory and output the css files into the static folder
pub compile_sass: bool,
/// Whether to build the search index for the content
pub build_search_index: bool,
/// A list of file glob patterns to ignore when processing the content folder. Defaults to none.
/// Had to remove the PartialEq derive because GlobSet does not implement it. No impact
/// because it's unused anyway (who wants to sort Configs?).
pub ignored_content: Vec<String>,
#[serde(skip_serializing, skip_deserializing)] // not a typo, 2 are needed
pub ignored_content_globset: Option<GlobSet>,
/// The mode Zola is currently being ran on. Some logging/feature can differ depending on the
/// command being used.
#[serde(skip_serializing)]
pub mode: Mode,
/// A list of directories to search for additional `.sublime-syntax` files in.
pub extra_syntaxes: Vec<String>,
/// The compiled extra syntaxes into a syntax set
#[serde(skip_serializing, skip_deserializing)] // not a typo, 2 are need
pub extra_syntax_set: Option<SyntaxSet>,
pub link_checker: LinkChecker,
/// All user params set in [extra] in the config
pub extra: HashMap<String, Toml>,
/// Set automatically when instantiating the config. Used for cachebusting
pub build_timestamp: Option<i64>,
}
impl Config {
/// Parses a string containing TOML to our Config struct
/// Any extra parameter will end up in the extra field
pub fn parse(content: &str) -> Result<Config> {
let mut config: Config = match toml::from_str(content) {
Ok(c) => c,
Err(e) => bail!(e),
};
if config.base_url.is_empty() || config.base_url == DEFAULT_BASE_URL {
bail!("A base URL is required in config.toml with key `base_url`");
}
if !THEME_SET.themes.contains_key(&config.highlight_theme) {
bail!("Highlight theme {} not available", config.highlight_theme)
}
config.build_timestamp = Some(Utc::now().timestamp());
if !config.ignored_content.is_empty() {
// Convert the file glob strings into a compiled glob set matcher. We want to do this once,
// at program initialization, rather than for every page, for example. We arrange for the
// globset matcher to always exist (even though it has to be an inside an Option at the
// moment because of the TOML serializer); if the glob set is empty the `is_match` function
// of the globber always returns false.
let mut glob_set_builder = GlobSetBuilder::new();
for pat in &config.ignored_content {
let glob = match Glob::new(pat) {
Ok(g) => g,
Err(e) => bail!("Invalid ignored_content glob pattern: {}, error = {}", pat, e),
};
glob_set_builder.add(glob);
}
config.ignored_content_globset =
Some(glob_set_builder.build().expect("Bad ignored_content in config file."));
}
for taxonomy in config.taxonomies.iter_mut() {
if taxonomy.lang.is_empty() {
taxonomy.lang = config.default_language.clone();
}
}
Ok(config)
}
/// Parses a config file from the given path
pub fn from_file<P: AsRef<Path>>(path: P) -> Result<Config> {
let path = path.as_ref();
let file_name = path.file_name().unwrap();
let content = read_file_with_error(
path,
&format!("No `{:?}` file found. Are you in the right directory?", file_name),
)?;
Config::parse(&content)
}
/// Attempt to load any extra syntax found in the extra syntaxes of the config
pub fn load_extra_syntaxes(&mut self, base_path: &Path) -> Result<()> {
if self.extra_syntaxes.is_empty() {
return Ok(());
}
let mut ss = SyntaxSetBuilder::new();
for dir in &self.extra_syntaxes {
ss.add_from_folder(base_path.join(dir), true)?;
}
self.extra_syntax_set = Some(ss.build());
Ok(())
}
/// Makes a url, taking into account that the base url might have a trailing slash
pub fn make_permalink(&self, path: &str) -> String {
let trailing_bit = if path.ends_with('/') || path.ends_with("rss.xml") || path.is_empty() {
""
} else {
"/"
};
// Index section with a base url that has a trailing slash
if self.base_url.ends_with('/') && path == "/" {
self.base_url.clone()
} else if path == "/" {
// index section with a base url that doesn't have a trailing slash
format!("{}/", self.base_url)
} else if self.base_url.ends_with('/') && path.starts_with('/') {
format!("{}{}{}", self.base_url, &path[1..], trailing_bit)
} else if self.base_url.ends_with('/') || path.starts_with('/') {
format!("{}{}{}", self.base_url, path, trailing_bit)
} else {
format!("{}/{}{}", self.base_url, path, trailing_bit)
}
}
/// Merges the extra data from the theme with the config extra data
fn add_theme_extra(&mut self, theme: &Theme) -> Result<()> {
// 3 pass merging
// 1. save config to preserve user
let original = self.extra.clone();
// 2. inject theme extra values
for (key, val) in &theme.extra {
self.extra.entry(key.to_string()).or_insert_with(|| val.clone());
}
// 3. overwrite with original config
for (key, val) in &original {
self.extra.entry(key.to_string()).or_insert_with(|| val.clone());
}
Ok(())
}
/// Parse the theme.toml file and merges the extra data from the theme
/// with the config extra data
pub fn merge_with_theme(&mut self, path: &PathBuf) -> Result<()> {
let theme = Theme::from_file(path)?;
self.add_theme_extra(&theme)
}
/// Is this site using i18n?
pub fn is_multilingual(&self) -> bool {
!self.languages.is_empty()
}
/// Returns the codes of all additional languages
pub fn languages_codes(&self) -> Vec<&str> {
self.languages.iter().map(|l| l.code.as_ref()).collect()
}
pub fn is_in_build_mode(&self) -> bool {
self.mode == Mode::Build
}
pub fn is_in_serve_mode(&self) -> bool {
self.mode == Mode::Serve
}
pub fn is_in_check_mode(&self) -> bool {
self.mode == Mode::Check
}
pub fn enable_serve_mode(&mut self) {
self.mode = Mode::Serve;
}
pub fn enable_check_mode(&mut self) {
self.mode = Mode::Check;
// Disable syntax highlighting since the results won't be used
// and this operation can be expensive.
self.highlight_code = false;
}
pub fn get_translation<S: AsRef<str>>(&self, lang: S, key: S) -> Result<String> {
let terms = self.translations.get(lang.as_ref()).ok_or_else(|| {
Error::msg(format!("Translation for language '{}' is missing", lang.as_ref()))
})?;
terms
.get(key.as_ref())
.ok_or_else(|| {
Error::msg(format!(
"Translation key '{}' for language '{}' is missing",
key.as_ref(),
lang.as_ref()
))
})
.map(|term| term.to_string())
}
}
impl Default for Config {
fn default() -> Config {
Config {
base_url: DEFAULT_BASE_URL.to_string(),
title: None,
description: None,
theme: None,
slugify_paths: true,
highlight_code: false,
highlight_theme: "base16-ocean-dark".to_string(),
default_language: "en".to_string(),
languages: Vec::new(),
generate_rss: false,
rss_limit: None,
hard_link_static: false,
taxonomies: Vec::new(),
compile_sass: false,
mode: Mode::Build,
build_search_index: false,
ignored_content: Vec::new(),
ignored_content_globset: None,
translations: HashMap::new(),
extra_syntaxes: Vec::new(),
extra_syntax_set: None,
link_checker: LinkChecker::default(),
extra: HashMap::new(),
build_timestamp: Some(1),
}
}
}
#[cfg(test)]
mod tests {
use super::{Config, Theme};
#[test]
fn can_import_valid_config() {
let config = r#"
title = "My site"
base_url = "https://replace-this-with-your-url.com"
"#;
let config = Config::parse(config).unwrap();
assert_eq!(config.title.unwrap(), "My site".to_string());
}
#[test]
fn errors_when_invalid_type() {
let config = r#"
title = 1
base_url = "https://replace-this-with-your-url.com"
"#;
let config = Config::parse(config);
assert!(config.is_err());
}
#[test]
fn errors_when_missing_required_field() {
// base_url is required
let config = r#"
title = ""
"#;
let config = Config::parse(config);
assert!(config.is_err());
}
#[test]
fn can_add_extra_values() {
let config = r#"
title = "My site"
base_url = "https://replace-this-with-your-url.com"
[extra]
hello = "world"
"#;
let config = Config::parse(config);
assert!(config.is_ok());
assert_eq!(config.unwrap().extra.get("hello").unwrap().as_str().unwrap(), "world");
}
#[test]
fn can_make_url_index_page_with_non_trailing_slash_url() {
let mut config = Config::default();
config.base_url = "http://vincent.is".to_string();
assert_eq!(config.make_permalink(""), "http://vincent.is/");
}
#[test]
fn can_make_url_index_page_with_railing_slash_url() {
let mut config = Config::default();
config.base_url = "http://vincent.is/".to_string();
assert_eq!(config.make_permalink(""), "http://vincent.is/");
}
#[test]
fn can_make_url_with_non_trailing_slash_base_url() {
let mut config = Config::default();
config.base_url = "http://vincent.is".to_string();
assert_eq!(config.make_permalink("hello"), "http://vincent.is/hello/");
}
#[test]
fn can_make_url_with_trailing_slash_path() {
let mut config = Config::default();
config.base_url = "http://vincent.is/".to_string();
assert_eq!(config.make_permalink("/hello"), "http://vincent.is/hello/");
}
#[test]
fn can_make_url_with_localhost() {
let mut config = Config::default();
config.base_url = "http://127.0.0.1:1111".to_string();
assert_eq!(config.make_permalink("/tags/rust"), "http://127.0.0.1:1111/tags/rust/");
}
// https://github.com/Keats/gutenberg/issues/486
#[test]
fn doesnt_add_trailing_slash_to_rss() {
let mut config = Config::default();
config.base_url = "http://vincent.is/".to_string();
assert_eq!(config.make_permalink("rss.xml"), "http://vincent.is/rss.xml");
}
#[test]
fn can_merge_with_theme_data_and_preserve_config_value() {
let config_str = r#"
title = "My site"
base_url = "https://replace-this-with-your-url.com"
[extra]
hello = "world"
"#;
let mut config = Config::parse(config_str).unwrap();
let theme_str = r#"
[extra]
hello = "foo"
a_value = 10
"#;
let theme = Theme::parse(theme_str).unwrap();
assert!(config.add_theme_extra(&theme).is_ok());
let extra = config.extra;
assert_eq!(extra["hello"].as_str().unwrap(), "world".to_string());
assert_eq!(extra["a_value"].as_integer().unwrap(), 10);
}
const CONFIG_TRANSLATION: &str = r#"
base_url = "https://remplace-par-ton-url.fr"
default_language = "fr"
[translations]
[translations.fr]
title = "Un titre"
[translations.en]
title = "A title"
"#;
#[test]
fn can_use_present_translation() {
let config = Config::parse(CONFIG_TRANSLATION).unwrap();
assert_eq!(config.get_translation("fr", "title").unwrap(), "Un titre");
assert_eq!(config.get_translation("en", "title").unwrap(), "A title");
}
#[test]
fn error_on_absent_translation_lang() {
let config = Config::parse(CONFIG_TRANSLATION).unwrap();
let error = config.get_translation("absent", "key").unwrap_err();
assert_eq!("Translation for language 'absent' is missing", format!("{}", error));
}
#[test]
fn error_on_absent_translation_key() {
let config = Config::parse(CONFIG_TRANSLATION).unwrap();
let error = config.get_translation("en", "absent").unwrap_err();
assert_eq!("Translation key 'absent' for language 'en' is missing", format!("{}", error));
}
#[test]
fn missing_ignored_content_results_in_empty_vector_and_empty_globset() {
let config_str = r#"
title = "My site"
base_url = "example.com"
"#;
let config = Config::parse(config_str).unwrap();
let v = config.ignored_content;
assert_eq!(v.len(), 0);
assert!(config.ignored_content_globset.is_none());
}
#[test]
fn empty_ignored_content_results_in_empty_vector_and_empty_globset() {
let config_str = r#"
title = "My site"
base_url = "example.com"
ignored_content = []
"#;
let config = Config::parse(config_str).unwrap();
assert_eq!(config.ignored_content.len(), 0);
assert!(config.ignored_content_globset.is_none());
}
#[test]
fn non_empty_ignored_content_results_in_vector_of_patterns_and_configured_globset() {
let config_str = r#"
title = "My site"
base_url = "example.com"
ignored_content = ["*.{graphml,iso}", "*.py?"]
"#;
let config = Config::parse(config_str).unwrap();
let v = config.ignored_content;
assert_eq!(v, vec!["*.{graphml,iso}", "*.py?"]);
let g = config.ignored_content_globset.unwrap();
assert_eq!(g.len(), 2);
assert!(g.is_match("foo.graphml"));
assert!(g.is_match("foo.iso"));
assert!(!g.is_match("foo.png"));
assert!(g.is_match("foo.py2"));
assert!(g.is_match("foo.py3"));
assert!(!g.is_match("foo.py"));
}
#[test]
fn link_checker_skip_anchor_prefixes() {
let config_str = r#"
title = "My site"
base_url = "example.com"
[link_checker]
skip_anchor_prefixes = [
"https://caniuse.com/#feat=",
"https://github.com/rust-lang/rust/blob/",
]
"#;
let config = Config::parse(config_str).unwrap();
assert_eq!(
config.link_checker.skip_anchor_prefixes,
vec!["https://caniuse.com/#feat=", "https://github.com/rust-lang/rust/blob/"]
);
}
#[test]
fn link_checker_skip_prefixes() {
let config_str = r#"
title = "My site"
base_url = "example.com"
[link_checker]
skip_prefixes = [
"http://[2001:db8::]/",
"https://www.example.com/path",
]
"#;
let config = Config::parse(config_str).unwrap();
assert_eq!(
config.link_checker.skip_prefixes,
vec!["http://[2001:db8::]/", "https://www.example.com/path",]
);
}
}
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