20 lines
574 B
Rust
20 lines
574 B
Rust
use regex::Regex;
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use std::fs;
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use std::io::Result;
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use std::path::Path;
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pub fn write_if_different<P: AsRef<Path>>(path: P, contents: &[u8]) -> Result<()> {
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let old_contents = fs::read(&path).ok();
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if old_contents.map(|c| c == contents).unwrap_or(false) {
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Ok(())
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} else {
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let _ = fs::create_dir_all(path.as_ref().parent().unwrap());
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fs::write(path, contents)
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}
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}
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pub fn snake_case(name: &str) -> String {
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let re = Regex::new("([A-Z])").unwrap();
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(name[..1].to_string() + &re.replace_all(&name[1..], "_$1")).to_lowercase()
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}
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