693 lines
24 KiB
Rust
693 lines
24 KiB
Rust
// Contains an embedded version of livereload-js 3.2.1
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//
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// Copyright (c) 2010-2012 Andrey Tarantsov
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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use std::env;
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use std::fs::{read_dir, remove_dir_all};
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use std::path::{Path, PathBuf, MAIN_SEPARATOR};
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use std::sync::mpsc::channel;
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use std::thread;
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use std::time::{Duration, Instant};
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use hyper::header;
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use hyper::service::{make_service_fn, service_fn};
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use hyper::{Body, Method, Request, Response, Server, StatusCode};
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use hyper_staticfile::ResolveResult;
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use tokio::io::AsyncReadExt;
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use chrono::prelude::*;
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use ctrlc;
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use notify::{watcher, RecursiveMode, Watcher};
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use ws::{Message, Sender, WebSocket};
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use errors::{Error as ZolaError, Result};
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use globset::GlobSet;
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use site::Site;
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use utils::fs::copy_file;
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use crate::console;
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use open;
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use rebuild;
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#[derive(Debug, PartialEq)]
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enum ChangeKind {
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Content,
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Templates,
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Themes,
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StaticFiles,
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Sass,
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Config,
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}
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static INTERNAL_SERVER_ERROR_TEXT: &[u8] = b"Internal Server Error";
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static METHOD_NOT_ALLOWED_TEXT: &[u8] = b"Method Not Allowed";
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static NOT_FOUND_TEXT: &[u8] = b"Not Found";
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// This is dist/livereload.min.js from the LiveReload.js v3.1.0 release
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const LIVE_RELOAD: &str = include_str!("livereload.js");
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async fn handle_request(req: Request<Body>, root: PathBuf) -> Result<Response<Body>> {
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// livereload.js is served using the LIVE_RELOAD str, not a file
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if req.uri().path() == "/livereload.js" {
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if req.method() == Method::GET {
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return Ok(livereload_js());
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} else {
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return Ok(method_not_allowed());
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}
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}
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let result = hyper_staticfile::resolve(&root, &req).await.unwrap();
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match result {
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ResolveResult::MethodNotMatched => return Ok(method_not_allowed()),
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ResolveResult::NotFound | ResolveResult::UriNotMatched => {
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return Ok(not_found(Path::new(&root.join("404.html"))).await)
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}
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_ => (),
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};
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Ok(hyper_staticfile::ResponseBuilder::new().request(&req).build(result).unwrap())
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}
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fn livereload_js() -> Response<Body> {
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Response::builder()
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.header(header::CONTENT_TYPE, "text/javascript")
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.status(StatusCode::OK)
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.body(LIVE_RELOAD.into())
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.expect("Could not build livereload.js response")
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}
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fn internal_server_error() -> Response<Body> {
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Response::builder()
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.header(header::CONTENT_TYPE, "text/plain")
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.status(StatusCode::INTERNAL_SERVER_ERROR)
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.body(INTERNAL_SERVER_ERROR_TEXT.into())
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.expect("Could not build Internal Server Error response")
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}
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fn method_not_allowed() -> Response<Body> {
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Response::builder()
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.header(header::CONTENT_TYPE, "text/plain")
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.status(StatusCode::METHOD_NOT_ALLOWED)
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.body(METHOD_NOT_ALLOWED_TEXT.into())
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.expect("Could not build Method Not Allowed response")
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}
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async fn not_found(page_path: &Path) -> Response<Body> {
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if let Ok(mut file) = tokio::fs::File::open(page_path).await {
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let mut buf = Vec::new();
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if file.read_to_end(&mut buf).await.is_ok() {
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return Response::builder()
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.header(header::CONTENT_TYPE, "text/html")
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.status(StatusCode::NOT_FOUND)
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.body(buf.into())
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.expect("Could not build Not Found response");
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}
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return internal_server_error();
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}
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// Use a plain text response when page_path isn't available
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Response::builder()
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.header(header::CONTENT_TYPE, "text/plain")
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.status(StatusCode::NOT_FOUND)
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.body(NOT_FOUND_TEXT.into())
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.expect("Could not build Not Found response")
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}
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fn rebuild_done_handling(broadcaster: &Option<Sender>, res: Result<()>, reload_path: &str) {
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match res {
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Ok(_) => {
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if let Some(broadcaster) = broadcaster.as_ref() {
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broadcaster
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.send(format!(
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r#"
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{{
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"command": "reload",
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"path": "{}",
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"originalPath": "",
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"liveCSS": true,
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"liveImg": true,
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"protocol": ["http://livereload.com/protocols/official-7"]
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}}"#,
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reload_path
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))
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.unwrap();
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}
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}
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Err(e) => console::unravel_errors("Failed to build the site", &e),
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}
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}
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fn create_new_site(
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root_dir: &Path,
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interface: &str,
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port: u16,
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output_dir: &Path,
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base_url: &str,
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config_file: &Path,
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include_drafts: bool,
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) -> Result<(Site, String)> {
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let mut site = Site::new(root_dir, config_file)?;
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let base_address = format!("{}:{}", base_url, port);
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let address = format!("{}:{}", interface, port);
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let base_url = if site.config.base_url.ends_with('/') {
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format!("http://{}/", base_address)
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} else {
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format!("http://{}", base_address)
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};
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site.config.enable_serve_mode();
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site.set_base_url(base_url);
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site.set_output_path(output_dir);
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if include_drafts {
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site.include_drafts();
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}
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site.load()?;
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site.enable_live_reload(port);
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console::notify_site_size(&site);
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console::warn_about_ignored_pages(&site);
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site.build()?;
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Ok((site, address))
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}
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pub fn serve(
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root_dir: &Path,
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interface: &str,
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port: u16,
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output_dir: &Path,
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base_url: &str,
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config_file: &Path,
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watch_only: bool,
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open: bool,
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include_drafts: bool,
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) -> Result<()> {
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let start = Instant::now();
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let (mut site, address) = create_new_site(
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root_dir,
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interface,
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port,
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output_dir,
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base_url,
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config_file,
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include_drafts,
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)?;
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console::report_elapsed_time(start);
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// Setup watchers
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let mut watching_static = false;
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let mut watching_templates = false;
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let mut watching_themes = false;
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let (tx, rx) = channel();
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let mut watcher = watcher(tx, Duration::from_secs(1)).unwrap();
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watcher
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.watch("content/", RecursiveMode::Recursive)
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.map_err(|e| ZolaError::chain("Can't watch the `content` folder. Does it exist?", e))?;
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watcher
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.watch(config_file, RecursiveMode::Recursive)
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.map_err(|e| ZolaError::chain("Can't watch the `config` file. Does it exist?", e))?;
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if Path::new("static").exists() {
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watching_static = true;
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watcher
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.watch("static/", RecursiveMode::Recursive)
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.map_err(|e| ZolaError::chain("Can't watch the `static` folder.", e))?;
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}
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if Path::new("templates").exists() {
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watching_templates = true;
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watcher
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.watch("templates/", RecursiveMode::Recursive)
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.map_err(|e| ZolaError::chain("Can't watch the `templates` folder.", e))?;
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}
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if Path::new("themes").exists() {
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watching_themes = true;
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watcher
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.watch("themes/", RecursiveMode::Recursive)
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.map_err(|e| ZolaError::chain("Can't watch the `themes` folder.", e))?;
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}
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// Sass support is optional so don't make it an error to no have a sass folder
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let _ = watcher.watch("sass/", RecursiveMode::Recursive);
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let ws_address = format!("{}:{}", interface, site.live_reload.unwrap());
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let output_path = Path::new(output_dir).to_path_buf();
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// output path is going to need to be moved later on, so clone it for the
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// http closure to avoid contention.
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let static_root = output_path.clone();
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let broadcaster = if !watch_only {
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thread::spawn(move || {
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let addr = address.parse().unwrap();
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let mut rt = tokio::runtime::Builder::new()
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.enable_all()
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.basic_scheduler()
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.build()
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.expect("Could not build tokio runtime");
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rt.block_on(async {
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let make_service = make_service_fn(move |_| {
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let static_root = static_root.clone();
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async {
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Ok::<_, hyper::Error>(service_fn(move |req| {
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handle_request(req, static_root.clone())
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}))
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}
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});
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let server = Server::bind(&addr).serve(make_service);
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println!("Web server is available at http://{}\n", &address);
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if open {
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if let Err(err) = open::that(format!("http://{}", &address)) {
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eprintln!("Failed to open URL in your browser: {}", err);
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}
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}
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server.await.expect("Could not start web server");
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});
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});
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// The websocket for livereload
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let ws_server = WebSocket::new(|output: Sender| {
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move |msg: Message| {
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if msg.into_text().unwrap().contains("\"hello\"") {
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return output.send(Message::text(
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r#"
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{
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"command": "hello",
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"protocols": [ "http://livereload.com/protocols/official-7" ],
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"serverName": "Zola"
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}
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"#,
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));
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}
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Ok(())
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}
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})
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.unwrap();
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let broadcaster = ws_server.broadcaster();
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thread::spawn(move || {
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ws_server.listen(&*ws_address).unwrap();
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});
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Some(broadcaster)
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} else {
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println!("Watching in watch only mode, no web server will be started");
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None
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};
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let pwd = env::current_dir().unwrap();
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let mut watchers = vec!["content", "config.toml"];
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if watching_static {
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watchers.push("static");
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}
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if watching_templates {
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watchers.push("templates");
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}
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if watching_themes {
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watchers.push("themes");
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}
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if site.config.compile_sass {
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watchers.push("sass");
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}
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println!(
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"Listening for changes in {}{}{{{}}}",
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pwd.display(),
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MAIN_SEPARATOR,
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watchers.join(", ")
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);
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println!("Press Ctrl+C to stop\n");
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// Delete the output folder on ctrl+C
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ctrlc::set_handler(move || {
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match remove_dir_all(&output_path) {
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Ok(()) => (),
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Err(e) => println!("Errored while deleting output folder: {}", e),
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}
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::std::process::exit(0);
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})
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.expect("Error setting Ctrl-C handler");
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use notify::DebouncedEvent::*;
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let reload_templates = |site: &mut Site, path: &Path| {
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let msg = if path.is_dir() {
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format!("-> Directory in `templates` folder changed {}", path.display())
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} else {
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format!("-> Template changed {}", path.display())
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};
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console::info(&msg);
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// Force refresh
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rebuild_done_handling(&broadcaster, rebuild::after_template_change(site, &path), "/x.js");
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};
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let reload_sass = |site: &Site, path: &Path, partial_path: &Path| {
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let msg = if path.is_dir() {
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format!("-> Directory in `sass` folder changed {}", path.display())
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} else {
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format!("-> Sass file changed {}", path.display())
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};
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console::info(&msg);
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rebuild_done_handling(
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&broadcaster,
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site.compile_sass(&site.base_path),
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&partial_path.to_string_lossy(),
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);
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};
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let copy_static = |site: &Site, path: &Path, partial_path: &Path| {
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// Do nothing if the file/dir was deleted
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if !path.exists() {
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return;
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}
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let msg = if path.is_dir() {
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format!("-> Directory in `static` folder changed {}", path.display())
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} else {
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format!("-> Static file changed {}", path.display())
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};
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console::info(&msg);
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if path.is_dir() {
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rebuild_done_handling(
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&broadcaster,
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site.copy_static_directories(),
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&path.to_string_lossy(),
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);
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} else {
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rebuild_done_handling(
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&broadcaster,
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copy_file(
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&path,
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&site.output_path,
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&site.static_path,
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site.config.hard_link_static,
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),
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&partial_path.to_string_lossy(),
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);
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}
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};
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let recreate_site = || match create_new_site(
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root_dir,
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interface,
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port,
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output_dir,
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base_url,
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config_file,
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include_drafts,
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) {
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Ok((s, _)) => {
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rebuild_done_handling(&broadcaster, Ok(()), "/x.js");
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Some(s)
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}
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Err(e) => {
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console::error(&format!("{}", e));
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None
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}
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};
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loop {
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match rx.recv() {
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Ok(event) => {
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match event {
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Rename(old_path, path) => {
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if path.is_file() && is_temp_file(&path) {
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continue;
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}
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let (change_kind, partial_path) = detect_change_kind(&pwd, &path);
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// We only care about changes in non-empty folders
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if path.is_dir() && is_folder_empty(&path) {
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continue;
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}
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println!(
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"Change detected @ {}",
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Local::now().format("%Y-%m-%d %H:%M:%S").to_string()
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);
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let start = Instant::now();
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match change_kind {
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ChangeKind::Content => {
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console::info(&format!("-> Content renamed {}", path.display()));
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// Force refresh
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rebuild_done_handling(
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&broadcaster,
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rebuild::after_content_rename(&mut site, &old_path, &path),
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"/x.js",
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);
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}
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ChangeKind::Templates => reload_templates(&mut site, &path),
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ChangeKind::StaticFiles => copy_static(&site, &path, &partial_path),
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ChangeKind::Sass => reload_sass(&site, &path, &partial_path),
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ChangeKind::Themes => {
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console::info(
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"-> Themes changed. The whole site will be reloaded.",
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);
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if let Some(s) = recreate_site() {
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site = s;
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}
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}
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ChangeKind::Config => {
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console::info("-> Config changed. The whole site will be reloaded. The browser needs to be refreshed to make the changes visible.");
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if let Some(s) = recreate_site() {
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site = s;
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}
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}
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}
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console::report_elapsed_time(start);
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}
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// Intellij does weird things on edit, chmod is there to count those changes
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// https://github.com/passcod/notify/issues/150#issuecomment-494912080
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Create(path) | Write(path) | Remove(path) | Chmod(path) => {
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if is_ignored_file(&site.config.ignored_content_globset, &path) {
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continue;
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}
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if is_temp_file(&path) || path.is_dir() {
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continue;
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}
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println!(
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"Change detected @ {}",
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Local::now().format("%Y-%m-%d %H:%M:%S").to_string()
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);
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let start = Instant::now();
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match detect_change_kind(&pwd, &path) {
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(ChangeKind::Content, _) => {
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console::info(&format!("-> Content changed {}", path.display()));
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// Force refresh
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rebuild_done_handling(
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&broadcaster,
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rebuild::after_content_change(&mut site, &path),
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"/x.js",
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);
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}
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(ChangeKind::Templates, _) => reload_templates(&mut site, &path),
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(ChangeKind::StaticFiles, p) => copy_static(&site, &path, &p),
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(ChangeKind::Sass, p) => reload_sass(&site, &path, &p),
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(ChangeKind::Themes, _) => {
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console::info(
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"-> Themes changed. The whole site will be reloaded.",
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);
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if let Some(s) = recreate_site() {
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site = s;
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}
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}
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(ChangeKind::Config, _) => {
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console::info("-> Config changed. The whole site will be reloaded. The browser needs to be refreshed to make the changes visible.");
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|
|
if let Some(s) = recreate_site() {
|
|
site = s;
|
|
}
|
|
}
|
|
};
|
|
console::report_elapsed_time(start);
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
Err(e) => console::error(&format!("Watch error: {:?}", e)),
|
|
};
|
|
}
|
|
}
|
|
|
|
fn is_ignored_file(ignored_content_globset: &Option<GlobSet>, path: &Path) -> bool {
|
|
match ignored_content_globset {
|
|
Some(gs) => gs.is_match(path),
|
|
None => false,
|
|
}
|
|
}
|
|
|
|
/// Returns whether the path we received corresponds to a temp file created
|
|
/// by an editor or the OS
|
|
fn is_temp_file(path: &Path) -> bool {
|
|
let ext = path.extension();
|
|
match ext {
|
|
Some(ex) => match ex.to_str().unwrap() {
|
|
"swp" | "swx" | "tmp" | ".DS_STORE" => true,
|
|
// jetbrains IDE
|
|
x if x.ends_with("jb_old___") => true,
|
|
x if x.ends_with("jb_tmp___") => true,
|
|
x if x.ends_with("jb_bak___") => true,
|
|
// vim
|
|
x if x.ends_with('~') => true,
|
|
_ => {
|
|
if let Some(filename) = path.file_stem() {
|
|
// emacs
|
|
let name = filename.to_str().unwrap();
|
|
name.starts_with('#') || name.starts_with(".#")
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
},
|
|
None => true,
|
|
}
|
|
}
|
|
|
|
/// Detect what changed from the given path so we have an idea what needs
|
|
/// to be reloaded
|
|
fn detect_change_kind(pwd: &Path, path: &Path) -> (ChangeKind, PathBuf) {
|
|
let mut partial_path = PathBuf::from("/");
|
|
partial_path.push(path.strip_prefix(pwd).unwrap_or(path));
|
|
|
|
let change_kind = if partial_path.starts_with("/templates") {
|
|
ChangeKind::Templates
|
|
} else if partial_path.starts_with("/themes") {
|
|
ChangeKind::Themes
|
|
} else if partial_path.starts_with("/content") {
|
|
ChangeKind::Content
|
|
} else if partial_path.starts_with("/static") {
|
|
ChangeKind::StaticFiles
|
|
} else if partial_path.starts_with("/sass") {
|
|
ChangeKind::Sass
|
|
} else if partial_path == Path::new("/config.toml") {
|
|
ChangeKind::Config
|
|
} else {
|
|
unreachable!("Got a change in an unexpected path: {}", partial_path.display());
|
|
};
|
|
|
|
(change_kind, partial_path)
|
|
}
|
|
|
|
/// Check if the directory at path contains any file
|
|
fn is_folder_empty(dir: &Path) -> bool {
|
|
// Can panic if we don't have the rights I guess?
|
|
let files: Vec<_> =
|
|
read_dir(dir).expect("Failed to read a directory to see if it was empty").collect();
|
|
files.is_empty()
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use std::path::{Path, PathBuf};
|
|
|
|
use super::{detect_change_kind, is_temp_file, ChangeKind};
|
|
|
|
#[test]
|
|
fn can_recognize_temp_files() {
|
|
let test_cases = vec![
|
|
Path::new("hello.swp"),
|
|
Path::new("hello.swx"),
|
|
Path::new(".DS_STORE"),
|
|
Path::new("hello.tmp"),
|
|
Path::new("hello.html.__jb_old___"),
|
|
Path::new("hello.html.__jb_tmp___"),
|
|
Path::new("hello.html.__jb_bak___"),
|
|
Path::new("hello.html~"),
|
|
Path::new("#hello.html"),
|
|
];
|
|
|
|
for t in test_cases {
|
|
assert!(is_temp_file(&t));
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn can_detect_kind_of_changes() {
|
|
let test_cases = vec![
|
|
(
|
|
(ChangeKind::Templates, PathBuf::from("/templates/hello.html")),
|
|
Path::new("/home/vincent/site"),
|
|
Path::new("/home/vincent/site/templates/hello.html"),
|
|
),
|
|
(
|
|
(ChangeKind::Themes, PathBuf::from("/themes/hello.html")),
|
|
Path::new("/home/vincent/site"),
|
|
Path::new("/home/vincent/site/themes/hello.html"),
|
|
),
|
|
(
|
|
(ChangeKind::StaticFiles, PathBuf::from("/static/site.css")),
|
|
Path::new("/home/vincent/site"),
|
|
Path::new("/home/vincent/site/static/site.css"),
|
|
),
|
|
(
|
|
(ChangeKind::Content, PathBuf::from("/content/posts/hello.md")),
|
|
Path::new("/home/vincent/site"),
|
|
Path::new("/home/vincent/site/content/posts/hello.md"),
|
|
),
|
|
(
|
|
(ChangeKind::Sass, PathBuf::from("/sass/print.scss")),
|
|
Path::new("/home/vincent/site"),
|
|
Path::new("/home/vincent/site/sass/print.scss"),
|
|
),
|
|
(
|
|
(ChangeKind::Config, PathBuf::from("/config.toml")),
|
|
Path::new("/home/vincent/site"),
|
|
Path::new("/home/vincent/site/config.toml"),
|
|
),
|
|
];
|
|
|
|
for (expected, pwd, path) in test_cases {
|
|
assert_eq!(expected, detect_change_kind(&pwd, &path));
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(windows)]
|
|
fn windows_path_handling() {
|
|
let expected = (ChangeKind::Templates, PathBuf::from("/templates/hello.html"));
|
|
let pwd = Path::new(r#"C:\\Users\johan\site"#);
|
|
let path = Path::new(r#"C:\\Users\johan\site\templates\hello.html"#);
|
|
assert_eq!(expected, detect_change_kind(pwd, path));
|
|
}
|
|
|
|
#[test]
|
|
fn relative_path() {
|
|
let expected = (ChangeKind::Templates, PathBuf::from("/templates/hello.html"));
|
|
let pwd = Path::new("/home/johan/site");
|
|
let path = Path::new("templates/hello.html");
|
|
assert_eq!(expected, detect_change_kind(pwd, path));
|
|
}
|
|
}
|