mirror of
https://github.com/XAMPPRocky/tokei
synced 2024-10-01 05:23:37 +00:00
124 lines
3.9 KiB
Rust
124 lines
3.9 KiB
Rust
extern crate handlebars;
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extern crate ignore;
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extern crate serde_json;
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use std::{cmp, env, error};
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use std::ffi::OsStr;
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use std::fs::{self, File};
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use std::path::Path;
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use handlebars::Handlebars;
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use serde_json::Value;
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use ignore::Walk;
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fn main() -> Result<(), Box<error::Error>> {
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let out_dir = env::var_os("OUT_DIR").expect("No OUT_DIR variable.");
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generate_languages(&out_dir)?;
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generate_tests(&out_dir)?;
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Ok(())
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}
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fn generate_languages(out_dir: &OsStr) -> Result<(), Box<error::Error>> {
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let handlebars = {
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let mut h = Handlebars::new();
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h.register_escape_fn(handlebars::no_escape);
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h
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};
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let mut json: Value = serde_json::from_reader(File::open(&"languages.json")?)?;
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for (_key, ref mut item) in json.get_mut("languages")
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.unwrap()
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.as_object_mut()
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.unwrap()
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.iter_mut()
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{
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macro_rules! sort_prop {
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($prop:expr) => {{
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if let Some(ref mut prop) = item.get_mut($prop) {
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prop.as_array_mut()
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.unwrap()
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.sort_unstable_by(compare_json_str_len)
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}
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}}
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}
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sort_prop!("quotes");
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sort_prop!("multi_line");
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}
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let output = Path::new(&out_dir).join("language_type.rs");
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let mut source_template = File::open(&"src/language/language_type.hbs.rs")?;
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let mut output_file = File::create(&output)?;
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handlebars.render_template_source_to_write(&mut source_template,
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&json,
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&mut output_file)?;
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Ok(())
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}
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fn compare_json_str_len(a: &Value, b: &Value) -> cmp::Ordering {
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let a = a.as_array().expect("a as array");
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let b = b.as_array().expect("b as array");
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let max_a_size = a.iter().map(|e| e.as_str().unwrap().len()).max().unwrap();
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let max_b_size = b.iter().map(|e| e.as_str().unwrap().len()).max().unwrap();
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max_b_size.cmp(&max_a_size)
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}
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fn generate_tests(out_dir: &OsStr) -> Result<(), Box<error::Error>> {
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// Length of string literal below by number of languages
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const INITIAL_BUFFER_SIZE: usize = 989 * 130;
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let mut string = String::with_capacity(INITIAL_BUFFER_SIZE);
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let walker = Walk::new("./tests/data/").filter(|p| {
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match p {
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&Ok(ref p) => {
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if let Ok(ref p) = p.metadata() {
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p.is_file()
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} else {
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false
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}
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},
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_ => false,
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}
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});
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for path in walker {
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let path = path?;
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let path = path.path();
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let name = path.file_stem().unwrap().to_str().unwrap().to_lowercase();
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string.push_str(&format!(r#"
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#[test]
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fn {0}() {{
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let mut languages = Languages::new();
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languages.get_statistics(&["{1}"], Vec::new(), None);
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if languages.len() != 1 {{
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panic!("wrong languages detected: expected just {0}, found {{:?}}",
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languages.into_iter().collect::<Vec<_>>());
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}}
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let (name, language) = languages.into_iter().next().unwrap();
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let contents = fs::read_to_string("{1}").unwrap();
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assert_eq!(get_digit!(LINES, contents), language.lines);
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println!("{{}} LINES MATCH", name);
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assert_eq!(get_digit!(CODE, contents), language.code);
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println!("{{}} CODE MATCH", name);
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assert_eq!(get_digit!(COMMENTS, contents), language.comments);
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println!("{{}} COMMENTS MATCH", name);
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assert_eq!(get_digit!(BLANKS, contents), language.blanks);
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println!("{{}} BLANKS MATCH", name);
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}}
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"#, name, path.display()));
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}
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Ok(fs::write(Path::new(&out_dir).join("tests.rs"), string)?)
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}
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