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Factor common io error handling out of renderer

This commit is contained in:
Matt Brubeck 2016-12-31 22:27:38 -08:00
parent 894a03655e
commit f2b87f7944
2 changed files with 30 additions and 115 deletions
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10
src/book/mod.rs
View File

@ -273,6 +273,16 @@ impl MDBook {
Ok(())
}
pub fn write_file<P: AsRef<Path>>(&self, filename: P, content: &[u8]) -> Result<(), Box<Error>> {
let path = self.get_dest().join(filename);
try!(utils::fs::create_file(&path).and_then(|mut file| {
file.write_all(content)
}).map_err(|e| {
io::Error::new(io::ErrorKind::Other, format!("Could not create {}: {}", path.display(), e))
}));
Ok(())
}
/// Parses the `book.json` file (if it exists) to extract the configuration parameters.
/// The `book.json` file should be in the root directory of the book.
/// The root directory is the one specified when creating a new `MDBook`

135
src/renderer/html_handlebars/hbs_renderer.rs
View File

@ -7,7 +7,7 @@ use {utils, theme};
use std::path::{Path, PathBuf};
use std::fs::{self, File};
use std::error::Error;
use std::io::{self, Read, Write};
use std::io::{self, Read};
use std::collections::BTreeMap;
use handlebars::Handlebars;
@ -93,19 +93,15 @@ impl Renderer for HtmlHandlebars {
debug!("[*]: Render template");
let rendered = try!(handlebars.render("index", &data));
debug!("[*]: Create file {:?}", &book.get_dest().join(&ch.path).with_extension("html"));
// Write to file
let mut file =
try!(utils::fs::create_file(&book.get_dest().join(&ch.path).with_extension("html")));
info!("[*] Creating {:?} ✓", &book.get_dest().join(&ch.path).with_extension("html"));
try!(file.write_all(&rendered.into_bytes()));
let filename = Path::new(&ch.path).with_extension("html");
info!("[*] Creating {:?} ✓", filename.display());
try!(book.write_file(filename, &rendered.into_bytes()));
// Create an index.html from the first element in SUMMARY.md
if index {
debug!("[*]: index.html");
let mut index_file = try!(File::create(book.get_dest().join("index.html")));
let mut content = String::new();
let _source = try!(File::open(book.get_dest().join(&ch.path.with_extension("html"))))
.read_to_string(&mut content);
@ -117,7 +113,7 @@ impl Renderer for HtmlHandlebars {
.collect::<Vec<&str>>()
.join("\n");
try!(index_file.write_all(content.as_bytes()));
try!(book.write_file("index.html", content.as_bytes()));
info!("[*] Creating index.html from {:?} ✓",
book.get_dest().join(&ch.path.with_extension("html")));
@ -139,117 +135,26 @@ impl Renderer for HtmlHandlebars {
// Render the handlebars template with the data
debug!("[*]: Render template");
let rendered = try!(handlebars.render("index", &data));
let mut file = try!(utils::fs::create_file(&book.get_dest().join("print").with_extension("html")));
try!(file.write_all(&rendered.into_bytes()));
try!(book.write_file(Path::new("print").with_extension("html"), &rendered.into_bytes()));
info!("[*] Creating print.html ✓");
// Copy static files (js, css, images, ...)
debug!("[*] Copy static files");
// JavaScript
let mut js_file = if let Ok(f) = File::create(book.get_dest().join("book.js")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create book.js")));
};
try!(js_file.write_all(&theme.js));
// Css
let mut css_file = if let Ok(f) = File::create(book.get_dest().join("book.css")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create book.css")));
};
try!(css_file.write_all(&theme.css));
// Favicon
let mut favicon_file = if let Ok(f) = File::create(book.get_dest().join("favicon.png")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create favicon.png")));
};
try!(favicon_file.write_all(&theme.favicon));
// JQuery local fallback
let mut jquery = if let Ok(f) = File::create(book.get_dest().join("jquery.js")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create jquery.js")));
};
try!(jquery.write_all(&theme.jquery));
// syntax highlighting
let mut highlight_css = if let Ok(f) = File::create(book.get_dest().join("highlight.css")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create highlight.css")));
};
try!(highlight_css.write_all(&theme.highlight_css));
let mut tomorrow_night_css = if let Ok(f) = File::create(book.get_dest().join("tomorrow-night.css")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create tomorrow-night.css")));
};
try!(tomorrow_night_css.write_all(&theme.tomorrow_night_css));
let mut highlight_js = if let Ok(f) = File::create(book.get_dest().join("highlight.js")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create highlight.js")));
};
try!(highlight_js.write_all(&theme.highlight_js));
// Font Awesome local fallback
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/css/font-awesome.css")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create font-awesome.css")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME));
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/fonts/fontawesome-webfont.eot")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create fontawesome-webfont.eot")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME_EOT));
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/fonts/fontawesome-webfont.svg")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create fontawesome-webfont.svg")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME_SVG));
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/fonts/fontawesome-webfont.ttf")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create fontawesome-webfont.ttf")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME_TTF));
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/fonts/fontawesome-webfont.woff")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create fontawesome-webfont.woff")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME_WOFF));
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/fonts/fontawesome-webfont.woff2")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create fontawesome-webfont.woff2")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME_WOFF2));
let mut font_awesome = if let Ok(f) = utils::fs::create_file(&book.get_dest()
.join("_FontAwesome/fonts/FontAwesome.ttf")) {
f
} else {
return Err(Box::new(io::Error::new(io::ErrorKind::Other, "Could not create FontAwesome.ttf")));
};
try!(font_awesome.write_all(theme::FONT_AWESOME_TTF));
try!(book.write_file("book.js", &theme.js));
try!(book.write_file("book.css", &theme.css));
try!(book.write_file("favicon.png", &theme.favicon));
try!(book.write_file("jquery.js", &theme.jquery));
try!(book.write_file("highlight.css", &theme.highlight_css));
try!(book.write_file("tomorrow-night.css", &theme.tomorrow_night_css));
try!(book.write_file("highlight.js", &theme.highlight_js));
try!(book.write_file("_FontAwesome/css/font-awesome.css", theme::FONT_AWESOME));
try!(book.write_file("_FontAwesome/fonts/fontawesome-webfont.eot", theme::FONT_AWESOME_EOT));
try!(book.write_file("_FontAwesome/fonts/fontawesome-webfont.svg", theme::FONT_AWESOME_SVG));
try!(book.write_file("_FontAwesome/fonts/fontawesome-webfont.ttf", theme::FONT_AWESOME_TTF));
try!(book.write_file("_FontAwesome/fonts/fontawesome-webfont.woff", theme::FONT_AWESOME_WOFF));
try!(book.write_file("_FontAwesome/fonts/fontawesome-webfont.woff2", theme::FONT_AWESOME_WOFF2));
try!(book.write_file("_FontAwesome/fonts/FontAwesome.ttf", theme::FONT_AWESOME_TTF));
// Copy all remaining files
try!(utils::fs::copy_files_except_ext(book.get_src(), book.get_dest(), true, &["md"]));