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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
//! This module provides file formating utilities using
//! [`dprint`](https://github.com/dsherret/dprint).
//!
//! At the moment it is only consumed using CLI but in
//! the future it can be easily extended to provide
//! the same functions as ops available in JS runtime.
use dprint_plugin_typescript as dprint;
use glob;
use regex::Regex;
use std::fs;
use std::path::Path;
use std::path::PathBuf;
use std::time::Instant;
lazy_static! {
static ref TYPESCRIPT_LIB: Regex = Regex::new(".d.ts$").unwrap();
static ref TYPESCRIPT: Regex = Regex::new(".tsx?$").unwrap();
static ref JAVASCRIPT: Regex = Regex::new(".jsx?$").unwrap();
}
fn is_supported(path: &Path) -> bool {
let path_str = path.to_string_lossy();
!TYPESCRIPT_LIB.is_match(&path_str)
&& (TYPESCRIPT.is_match(&path_str) || JAVASCRIPT.is_match(&path_str))
}
fn get_config() -> dprint::configuration::Configuration {
dprint::configuration::ConfigurationBuilder::new()
.line_width(80)
.indent_width(2)
.next_control_flow_position(
dprint::configuration::NextControlFlowPosition::SameLine,
)
.binary_expression_operator_position(
dprint::configuration::OperatorPosition::SameLine,
)
.build()
}
fn get_supported_files(paths: Vec<PathBuf>) -> Vec<PathBuf> {
let mut files_to_check = vec![];
for path in paths {
if is_supported(&path) {
files_to_check.push(path.to_owned());
}
}
files_to_check
}
fn check_source_files(
config: dprint::configuration::Configuration,
paths: Vec<PathBuf>,
) {
let start = Instant::now();
let mut not_formatted_files = vec![];
for file_path in paths {
let file_path_str = file_path.to_string_lossy();
let file_contents = fs::read_to_string(&file_path).unwrap();
match dprint::format_text(&file_path_str, &file_contents, &config) {
Ok(None) => {
// nothing to format, pass
}
Ok(Some(formatted_text)) => {
if formatted_text != file_contents {
println!("Not formatted {}", file_path_str);
not_formatted_files.push(file_path);
}
}
Err(e) => {
eprintln!("Error checking: {}", &file_path_str);
eprintln!(" {}", e);
}
}
}
let duration = Instant::now() - start;
if !not_formatted_files.is_empty() {
let f = if not_formatted_files.len() == 1 {
"file"
} else {
"files"
};
eprintln!(
"Found {} not formatted {} in {:?}",
not_formatted_files.len(),
f,
duration
);
std::process::exit(1);
}
}
fn format_source_files(
config: dprint::configuration::Configuration,
paths: Vec<PathBuf>,
) {
let start = Instant::now();
let mut not_formatted_files = vec![];
for file_path in paths {
let file_path_str = file_path.to_string_lossy();
let file_contents = fs::read_to_string(&file_path).unwrap();
match dprint::format_text(&file_path_str, &file_contents, &config) {
Ok(None) => {
// nothing to format, pass
}
Ok(Some(formatted_text)) => {
if formatted_text != file_contents {
println!("Formatting {}", file_path_str);
fs::write(&file_path, formatted_text).unwrap();
not_formatted_files.push(file_path);
}
}
Err(e) => {
eprintln!("Error formatting: {}", &file_path_str);
eprintln!(" {}", e);
}
}
}
let duration = Instant::now() - start;
let f = if not_formatted_files.len() == 1 {
"file"
} else {
"files"
};
eprintln!(
"Formatted {} {} in {:?}",
not_formatted_files.len(),
f,
duration
);
}
fn get_matching_files(glob_paths: Vec<String>) -> Vec<PathBuf> {
let mut target_files = Vec::with_capacity(128);
for path in glob_paths {
let files = glob::glob(&path)
.expect("Failed to execute glob.")
.filter_map(Result::ok);
target_files.extend(files);
}
target_files
}
/// Format JavaScript/TypeScript files.
///
/// First argument supports globs, and if it is `None`
/// then the current directory is recursively walked.
pub fn format_files(maybe_files: Option<Vec<String>>, check: bool) {
// TODO: improve glob to look for tsx?/jsx? files only
let glob_paths = maybe_files.unwrap_or_else(|| vec!["**/*".to_string()]);
let matching_files = get_matching_files(glob_paths);
let matching_files = get_supported_files(matching_files);
let config = get_config();
if check {
check_source_files(config, matching_files);
} else {
format_source_files(config, matching_files);
}
}
|
