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Fix most of clippy warnings (#914) 

* Fix clippy: cast_lossless

* Fix clippy: match_ref_pats

* Fix clippy: extra_unused_lifetimes

* Fix clippy: needless_lifetimes

* Fix clippy: new_without_default

* Fix clippy: or_fun_call

* Fix clippy: should_implement_trait

* Fix clippy: redundant_closure

* Fix clippy: const_static_lifetime

* Fix clippy: redundant_pattern_matching

* Fix clippy: unused_io_amount

* Fix clippy: string_lit_as_bytes

* Fix clippy: needless_update

* Fix clippy: blacklisted_name

* Fix clippy: collapsible_if

* Fix clippy: match_wild_err_arm

* Fix clippy: single_match

* Fix clippy: useless_vec

* Fix clippy: single_char_pattern

* Fix clippy: float_cmp

* Fix clippy: approx_constant
This commit is contained in:
lzutao 2019-05-07 01:20:58 +07:00 committed by Dylan DPC
parent 345acb8597
commit ab7802a9a9
14 changed files with 85 additions and 74 deletions
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4
examples/nop-preprocessor.rs
View File

@ -28,12 +28,10 @@ fn main() {
if let Some(sub_args) = matches.subcommand_matches("supports") {
handle_supports(&preprocessor, sub_args);
} else {
if let Err(e) = handle_preprocessing(&preprocessor) {
} else if let Err(e) = handle_preprocessing(&preprocessor) {
eprintln!("{}", e);
process::exit(1);
}
}
}
fn handle_preprocessing(pre: &dyn Preprocessor) -> Result<(), Error> {

8
src/book/book.rs
View File

@ -116,7 +116,7 @@ where
I: IntoIterator<Item = &'a mut BookItem>,
{
for item in items {
if let &mut BookItem::Chapter(ref mut ch) = item {
if let BookItem::Chapter(ch) = item {
for_each_mut(func, &mut ch.sub_items);
}
@ -301,7 +301,7 @@ mod tests {
use std::io::Write;
use tempfile::{Builder as TempFileBuilder, TempDir};
const DUMMY_SRC: &'static str = "
const DUMMY_SRC: &str = "
# Dummy Chapter
this is some dummy text.
@ -317,7 +317,7 @@ And here is some \
let chapter_path = temp.path().join("chapter_1.md");
File::create(&chapter_path)
.unwrap()
.write(DUMMY_SRC.as_bytes())
.write_all(DUMMY_SRC.as_bytes())
.unwrap();
let link = Link::new("Chapter 1", chapter_path);
@ -333,7 +333,7 @@ And here is some \
File::create(&second_path)
.unwrap()
.write_all("Hello World!".as_bytes())
.write_all(b"Hello World!")
.unwrap();
let mut second = Link::new("Nested Chapter 1", &second_path);

20
src/book/mod.rs
View File

@ -16,6 +16,7 @@ pub use self::summary::{parse_summary, Link, SectionNumber, Summary, SummaryItem
use std::io::Write;
use std::path::PathBuf;
use std::process::Command;
use std::string::ToString;
use tempfile::Builder as TempFileBuilder;
use toml::Value;
@ -346,7 +347,7 @@ impl MDBook {
fn determine_renderers(config: &Config) -> Vec<Box<Renderer>> {
let mut renderers: Vec<Box<Renderer>> = Vec::new();
if let Some(output_table) = config.get("output").and_then(|o| o.as_table()) {
if let Some(output_table) = config.get("output").and_then(Value::as_table) {
for (key, table) in output_table.iter() {
// the "html" backend has its own Renderer
if key == "html" {
@ -386,7 +387,7 @@ fn determine_preprocessors(config: &Config) -> Result<Vec<Box<Preprocessor>>> {
preprocessors.extend(default_preprocessors());
}
if let Some(preprocessor_table) = config.get("preprocessor").and_then(|v| v.as_table()) {
if let Some(preprocessor_table) = config.get("preprocessor").and_then(Value::as_table) {
for key in preprocessor_table.keys() {
match key.as_ref() {
"links" => preprocessors.push(Box::new(LinkPreprocessor::new())),
@ -405,8 +406,8 @@ fn determine_preprocessors(config: &Config) -> Result<Vec<Box<Preprocessor>>> {
fn interpret_custom_preprocessor(key: &str, table: &Value) -> Box<CmdPreprocessor> {
let command = table
.get("command")
.and_then(|c| c.as_str())
.map(|s| s.to_string())
.and_then(Value::as_str)
.map(ToString::to_string)
.unwrap_or_else(|| format!("mdbook-{}", key));
Box::new(CmdPreprocessor::new(key.to_string(), command.to_string()))
@ -417,8 +418,8 @@ fn interpret_custom_renderer(key: &str, table: &Value) -> Box<CmdRenderer> {
// prepended by "mdbook-"
let table_dot_command = table
.get("command")
.and_then(|c| c.as_str())
.map(|s| s.to_string());
.and_then(Value::as_str)
.map(ToString::to_string);
let command = table_dot_command.unwrap_or_else(|| format!("mdbook-{}", key));
@ -443,7 +444,7 @@ fn preprocessor_should_run(preprocessor: &Preprocessor, renderer: &Renderer, cfg
if let Some(Value::Array(ref explicit_renderers)) = cfg.get(&key) {
return explicit_renderers
.iter()
.filter_map(|val| val.as_str())
.filter_map(Value::as_str)
.any(|name| name == renderer_name);
}
@ -453,6 +454,7 @@ fn preprocessor_should_run(preprocessor: &Preprocessor, renderer: &Renderer, cfg
#[cfg(test)]
mod tests {
use super::*;
use std::str::FromStr;
use toml::value::{Table, Value};
#[test]
@ -570,9 +572,9 @@ mod tests {
let html = cfg
.get_preprocessor("links")
.and_then(|links| links.get("renderers"))
.and_then(|renderers| renderers.as_array())
.and_then(Value::as_array)
.and_then(|renderers| renderers.get(0))
.and_then(|renderer| renderer.as_str())
.and_then(Value::as_str)
.unwrap();
assert_eq!(html, "html");
let html_renderer = HtmlHandlebars::default();

2
src/cmd/test.rs
View File

@ -31,7 +31,7 @@ pub fn make_subcommand<'a, 'b>() -> App<'a, 'b> {
pub fn execute(args: &ArgMatches) -> Result<()> {
let library_paths: Vec<&str> = args
.values_of("library-path")
.map(|v| v.collect())
.map(std::iter::Iterator::collect)
.unwrap_or_default();
let book_dir = get_book_dir(args);
let mut book = MDBook::load(&book_dir)?;

24
src/config.rs
View File

@ -13,6 +13,7 @@
//! # use mdbook::errors::*;
//! # extern crate toml;
//! use std::path::PathBuf;
//! use std::str::FromStr;
//! use mdbook::Config;
//! use toml::Value;
//!
@ -56,6 +57,7 @@ use std::env;
use std::fs::File;
use std::io::Read;
use std::path::{Path, PathBuf};
use std::str::FromStr;
use toml::value::Table;
use toml::{self, Value};
use toml_query::delete::TomlValueDeleteExt;
@ -75,12 +77,16 @@ pub struct Config {
rest: Value,
}
impl Config {
impl FromStr for Config {
type Err = Error;
/// Load a `Config` from some string.
pub fn from_str(src: &str) -> Result<Config> {
fn from_str(src: &str) -> Result<Self> {
toml::from_str(src).chain_err(|| Error::from("Invalid configuration file"))
}
}
impl Config {
/// Load the configuration file from disk.
pub fn from_disk<P: AsRef<Path>>(config_file: P) -> Result<Config> {
let mut buffer = String::new();
@ -212,13 +218,13 @@ impl Config {
/// Get the table associated with a particular renderer.
pub fn get_renderer<I: AsRef<str>>(&self, index: I) -> Option<&Table> {
let key = format!("output.{}", index.as_ref());
self.get(&key).and_then(|v| v.as_table())
self.get(&key).and_then(Value::as_table)
}
/// Get the table associated with a particular preprocessor.
pub fn get_preprocessor<I: AsRef<str>>(&self, index: I) -> Option<&Table> {
let key = format!("preprocessor.{}", index.as_ref());
self.get(&key).and_then(|v| v.as_table())
self.get(&key).and_then(Value::as_table)
}
fn from_legacy(mut table: Value) -> Config {
@ -560,7 +566,7 @@ impl<'de, T> Updateable<'de> for T where T: Serialize + Deserialize<'de> {}
mod tests {
use super::*;
const COMPLEX_CONFIG: &'static str = r#"
const COMPLEX_CONFIG: &str = r#"
[book]
title = "Some Book"
authors = ["Michael-F-Bryan <michaelfbryan@gmail.com>"]
@ -601,7 +607,6 @@ mod tests {
description: Some(String::from("A completely useless book")),
multilingual: true,
src: PathBuf::from("source"),
..Default::default()
};
let build_should_be = BuildConfig {
build_dir: PathBuf::from("outputs"),
@ -658,10 +663,10 @@ mod tests {
assert_eq!(got, should_be);
let baz: Vec<bool> = cfg.get_deserialized("output.random.baz").unwrap();
let got_baz: Vec<bool> = cfg.get_deserialized("output.random.baz").unwrap();
let baz_should_be = vec![true, true, false];
assert_eq!(baz, baz_should_be);
assert_eq!(got_baz, baz_should_be);
}
#[test]
@ -753,7 +758,7 @@ mod tests {
for (src, should_be) in inputs {
let got = parse_env(src);
let should_be = should_be.map(|s| s.to_string());
let should_be = should_be.map(ToString::to_string);
assert_eq!(got, should_be);
}
@ -783,6 +788,7 @@ mod tests {
}
#[test]
#[allow(clippy::approx_constant)]
fn update_config_using_env_var_and_complex_value() {
let mut cfg = Config::default();
let key = "foo-bar.baz";

8
src/preprocess/index.rs
View File

@ -8,6 +8,7 @@ use book::{Book, BookItem};
/// A preprocessor for converting file name `README.md` to `index.md` since
/// `README.md` is the de facto index file in markdown-based documentation.
#[derive(Default)]
pub struct IndexPreprocessor;
impl IndexPreprocessor {
@ -45,7 +46,10 @@ impl Preprocessor for IndexPreprocessor {
fn warn_readme_name_conflict<P: AsRef<Path>>(readme_path: P, index_path: P) {
let file_name = readme_path.as_ref().file_name().unwrap_or_default();
let parent_dir = index_path.as_ref().parent().unwrap_or(index_path.as_ref());
let parent_dir = index_path
.as_ref()
.parent()
.unwrap_or_else(|| index_path.as_ref());
warn!(
"It seems that there are both {:?} and index.md under \"{}\".",
file_name,
@ -67,7 +71,7 @@ fn is_readme_file<P: AsRef<Path>>(path: P) -> bool {
RE.is_match(
path.as_ref()
.file_stem()
.and_then(|s| s.to_str())
.and_then(std::ffi::OsStr::to_str)
.unwrap_or_default(),
)
}

1
src/preprocess/links.rs
View File

@ -13,6 +13,7 @@ const MAX_LINK_NESTED_DEPTH: usize = 10;
/// A preprocessor for expanding the `{{# playpen}}` and `{{# include}}`
/// helpers in a chapter.
#[derive(Default)]
pub struct LinkPreprocessor;
impl LinkPreprocessor {

2
src/renderer/html_handlebars/hbs_renderer.rs
View File

@ -611,7 +611,7 @@ fn partition_source(s: &str) -> (String, String) {
for line in s.lines() {
let trimline = line.trim();
let header = trimline.chars().all(|c| c.is_whitespace()) || trimline.starts_with("#![");
let header = trimline.chars().all(char::is_whitespace) || trimline.starts_with("#![");
if !header || after_header {
after_header = true;
after.push_str(line);

9
src/renderer/html_handlebars/helpers/theme.rs
View File

@ -9,12 +9,9 @@ pub fn theme_option(
) -> Result<(), RenderError> {
trace!("theme_option (handlebars helper)");
let param = h
.param(0)
.and_then(|v| v.value().as_str())
.ok_or(RenderError::new(
"Param 0 with String type is required for theme_option helper.",
))?;
let param = h.param(0).and_then(|v| v.value().as_str()).ok_or_else(|| {
RenderError::new("Param 0 with String type is required for theme_option helper.")
})?;
let theme_name = rc
.evaluate_absolute(ctx, "default_theme", true)?

10
src/renderer/html_handlebars/helpers/toc.rs
View File

@ -16,11 +16,11 @@ pub struct RenderToc {
impl HelperDef for RenderToc {
fn call<'reg: 'rc, 'rc>(
&self,
_h: &Helper,
_: &Handlebars,
ctx: &Context,
rc: &mut RenderContext,
out: &mut Output,
_h: &Helper<'reg, 'rc>,
_r: &'reg Handlebars,
ctx: &'rc Context,
rc: &mut RenderContext<'reg>,
out: &mut dyn Output,
) -> Result<(), RenderError> {
// get value from context data
// rc.get_path() is current json parent path, you should always use it like this

2
src/renderer/html_handlebars/search.rs
View File

@ -91,7 +91,7 @@ fn render_item(
let p = Parser::new_ext(&chapter.content, opts);
let mut in_header = false;
let max_section_depth = search_config.heading_split_level as i32;
let max_section_depth = i32::from(search_config.heading_split_level);
let mut section_id = None;
let mut heading = String::new();
let mut body = String::new();

50
src/utils/fs.rs
View File

@ -1,4 +1,5 @@
use errors::*;
use std::convert::Into;
use std::fs::{self, File};
use std::io::{Read, Write};
use std::path::{Component, Path, PathBuf};
@ -28,7 +29,7 @@ pub fn normalize_path(path: &str) -> String {
pub fn write_file<P: AsRef<Path>>(build_dir: &Path, filename: P, content: &[u8]) -> Result<()> {
let path = build_dir.join(filename);
create_file(&path)?.write_all(content).map_err(|e| e.into())
create_file(&path)?.write_all(content).map_err(Into::into)
}
/// Takes a path and returns a path containing just enough `../` to point to
@ -85,7 +86,7 @@ pub fn create_file(path: &Path) -> Result<File> {
fs::create_dir_all(p)?;
}
File::create(path).map_err(|e| e.into())
File::create(path).map_err(Into::into)
}
/// Removes all the content of a directory but not the directory itself
@ -196,43 +197,44 @@ mod tests {
fn copy_files_except_ext_test() {
let tmp = match tempfile::TempDir::new() {
Ok(t) => t,
Err(_) => panic!("Could not create a temp dir"),
Err(e) => panic!("Could not create a temp dir: {}", e),
};
// Create a couple of files
if let Err(_) = fs::File::create(&tmp.path().join("file.txt")) {
panic!("Could not create file.txt")
if let Err(err) = fs::File::create(&tmp.path().join("file.txt")) {
panic!("Could not create file.txt: {}", err);
}
if let Err(_) = fs::File::create(&tmp.path().join("file.md")) {
panic!("Could not create file.md")
if let Err(err) = fs::File::create(&tmp.path().join("file.md")) {
panic!("Could not create file.md: {}", err);
}
if let Err(_) = fs::File::create(&tmp.path().join("file.png")) {
panic!("Could not create file.png")
if let Err(err) = fs::File::create(&tmp.path().join("file.png")) {
panic!("Could not create file.png: {}", err);
}
if let Err(_) = fs::create_dir(&tmp.path().join("sub_dir")) {
panic!("Could not create sub_dir")
if let Err(err) = fs::create_dir(&tmp.path().join("sub_dir")) {
panic!("Could not create sub_dir: {}", err);
}
if let Err(_) = fs::File::create(&tmp.path().join("sub_dir/file.png")) {
panic!("Could not create sub_dir/file.png")
if let Err(err) = fs::File::create(&tmp.path().join("sub_dir/file.png")) {
panic!("Could not create sub_dir/file.png: {}", err);
}
if let Err(_) = fs::create_dir(&tmp.path().join("sub_dir_exists")) {
panic!("Could not create sub_dir_exists")
if let Err(err) = fs::create_dir(&tmp.path().join("sub_dir_exists")) {
panic!("Could not create sub_dir_exists: {}", err);
}
if let Err(_) = fs::File::create(&tmp.path().join("sub_dir_exists/file.txt")) {
panic!("Could not create sub_dir_exists/file.txt")
if let Err(err) = fs::File::create(&tmp.path().join("sub_dir_exists/file.txt")) {
panic!("Could not create sub_dir_exists/file.txt: {}", err);
}
// Create output dir
if let Err(_) = fs::create_dir(&tmp.path().join("output")) {
panic!("Could not create output")
if let Err(err) = fs::create_dir(&tmp.path().join("output")) {
panic!("Could not create output: {}", err);
}
if let Err(_) = fs::create_dir(&tmp.path().join("output/sub_dir_exists")) {
panic!("Could not create output/sub_dir_exists")
if let Err(err) = fs::create_dir(&tmp.path().join("output/sub_dir_exists")) {
panic!("Could not create output/sub_dir_exists: {}", err);
}
match copy_files_except_ext(&tmp.path(), &tmp.path().join("output"), true, &["md"]) {
Err(e) => panic!("Error while executing the function:\n{:?}", e),
Ok(_) => {}
if let Err(e) =
copy_files_except_ext(&tmp.path(), &tmp.path().join("output"), true, &["md"])
{
panic!("Error while executing the function:\n{:?}", e);
}
// Check if the correct files where created

2
src/utils/mod.rs
View File

@ -14,7 +14,7 @@ use std::borrow::Cow;
pub use self::string::{take_lines, RangeArgument};
/// Replaces multiple consecutive whitespace characters with a single space character.
pub fn collapse_whitespace<'a>(text: &'a str) -> Cow<'a, str> {
pub fn collapse_whitespace(text: &str) -> Cow<'_, str> {
lazy_static! {
static ref RE: Regex = Regex::new(r"\s\s+").unwrap();
}

13
tests/rendered_output.rs
View File

@ -22,15 +22,15 @@ use std::path::Path;
use tempfile::Builder as TempFileBuilder;
use walkdir::{DirEntry, WalkDir};
const BOOK_ROOT: &'static str = concat!(env!("CARGO_MANIFEST_DIR"), "/tests/dummy_book");
const TOC_TOP_LEVEL: &[&'static str] = &[
const BOOK_ROOT: &str = concat!(env!("CARGO_MANIFEST_DIR"), "/tests/dummy_book");
const TOC_TOP_LEVEL: &[&str] = &[
"1. First Chapter",
"2. Second Chapter",
"Conclusion",
"Dummy Book",
"Introduction",
];
const TOC_SECOND_LEVEL: &[&'static str] = &[
const TOC_SECOND_LEVEL: &[&str] = &[
"1.1. Nested Chapter",
"1.2. Includes",
"2.1. Nested Chapter",
@ -187,7 +187,7 @@ fn chapter_files_were_rendered_to_html() {
let chapter_files = WalkDir::new(&src)
.into_iter()
.filter_entry(|entry| entry_ends_with(entry, ".md"))
.filter_map(|entry| entry.ok())
.filter_map(std::result::Result::ok)
.map(|entry| entry.path().to_path_buf())
.filter(|path| path.file_name().and_then(OsStr::to_str) != Some("SUMMARY.md"));
@ -390,7 +390,7 @@ fn by_default_mdbook_use_index_preprocessor_to_convert_readme_to_index() {
"First README",
];
assert_contains_strings(&first_index, &expected_strings);
assert_doesnt_contain_strings(&first_index, &vec!["README.html"]);
assert_doesnt_contain_strings(&first_index, &["README.html"]);
let second_index = temp.path().join("book").join("second").join("index.html");
let unexpected_strings = vec!["Second README"];
@ -428,11 +428,12 @@ mod search {
let index = root.join("book/searchindex.js");
let index = file_to_string(index).unwrap();
let index = index.trim_start_matches("window.search = ");
let index = index.trim_end_matches(";");
let index = index.trim_end_matches(';');
serde_json::from_str(&index).unwrap()
}
#[test]
#[allow(clippy::float_cmp)]
fn book_creates_reasonable_search_index() {
let temp = DummyBook::new().build().unwrap();
let md = MDBook::load(temp.path()).unwrap();