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use std::default::Default; use std::path::Path; use std::fs::File; use std::io::Read; use glob::Pattern; use error::Result; use yaml_rust::YamlLoader; #[derive(Debug, PartialEq)] pub struct Config { pub source: String, pub dest: String, pub layouts: String, pub drafts: String, pub include_drafts: bool, pub posts: String, pub post_path: Option<String>, pub template_extensions: Vec<String>, pub rss: Option<String>, pub name: Option<String>, pub description: Option<String>, pub link: Option<String>, pub ignore: Vec<Pattern>, pub excerpt_separator: String, } impl Default for Config { fn default() -> Config { Config { source: "./".to_owned(), dest: "./".to_owned(), layouts: "_layouts".to_owned(), drafts: "_drafts".to_owned(), include_drafts: false, posts: "posts".to_owned(), post_path: None, template_extensions: vec!["md".to_owned(), "liquid".to_owned()], rss: None, name: None, description: None, link: None, ignore: vec![], excerpt_separator: "\n\n".to_owned(), } } } impl Config { pub fn from_file<P: AsRef<Path>>(path: P) -> Result<Config> { let mut buffer = String::new(); let mut f = try!(File::open(path)); try!(f.read_to_string(&mut buffer)); let yaml = try!(YamlLoader::load_from_str(&buffer)); let yaml = match yaml.get(0) { Some(y) => y, None => return Ok(Default::default()), }; let mut config = Config { name: yaml["name"].as_str().map(|s| s.to_owned()), rss: yaml["rss"].as_str().map(|s| s.to_owned()), description: yaml["description"].as_str().map(|s| s.to_owned()), post_path: yaml["post_path"].as_str().map(|s| s.to_owned()), ..Default::default() }; if let Some(source) = yaml["source"].as_str() { config.source = source.to_owned(); }; if let Some(dest) = yaml["dest"].as_str() { config.dest = dest.to_owned(); }; if let Some(layouts) = yaml["layouts"].as_str() { config.layouts = layouts.to_owned(); }; if let Some(drafts) = yaml["drafts"].as_str() { config.drafts = drafts.to_owned(); }; if let Some(include_drafts) = yaml["include_drafts"].as_bool() { config.include_drafts = include_drafts; }; if let Some(posts) = yaml["posts"].as_str() { config.posts = posts.to_owned(); }; if let Some(extensions) = yaml["template_extensions"].as_vec() { config.template_extensions = extensions.iter() .filter_map(|k| k.as_str().map(|k| k.to_owned())) .collect(); }; if let Some(link) = yaml["link"].as_str() { let mut link = link.to_owned(); if !link.ends_with('/') { link = link + "/"; } config.link = Some(link); }; if let Some(patterns) = yaml["ignore"].as_vec() { for pattern in patterns.iter() .filter_map(|k| k.as_str()) .filter_map(|k| Pattern::new(k).ok()) { config.ignore.push(pattern); } }; if let Some(excerpt_separator) = yaml["excerpt_separator"].as_str() { config.excerpt_separator = excerpt_separator.to_owned(); }; Ok(config) } } #[test] fn test_from_file_ok() { let result = Config::from_file("tests/fixtures/config/.cobalt.yml"); assert!(result.is_ok()); assert_eq!(result.unwrap(), Config { dest: "./dest".to_owned(), layouts: "_my_layouts".to_owned(), posts: "_my_posts".to_owned(), ..Default::default() }); } #[test] fn test_from_file_rss() { let result = Config::from_file("tests/fixtures/config/rss.yml"); assert!(result.is_ok()); assert_eq!(result.unwrap(), Config { rss: Some("rss.xml".to_owned()), name: Some("My blog!".to_owned()), description: Some("Blog description".to_owned()), link: Some("http://example.com/".to_owned()), ..Default::default() }); } #[test] fn test_from_file_empty() { let result = Config::from_file("tests/fixtures/config/empty.yml"); assert!(result.is_ok()); assert_eq!(result.unwrap(), Config { ..Default::default() }); } #[test] fn test_from_file_invalid_syntax() { let result = Config::from_file("tests/fixtures/config/invalid_syntax.yml"); assert!(result.is_err()); } #[test] fn test_from_file_not_found() { let result = Config::from_file("tests/fixtures/config/config_does_not_exist.yml"); assert!(result.is_err()); }