src/utils.rs


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use std::process::Command;
use std::ffi::OsStr;
use std::path::Path;

/// Checks if given program is installed in your system
pub fn is_installed(ss: &str) -> bool {
    let output = Command::new("which")
        .arg(ss)
        .output()
        .expect("Failed to execute command");

    output.status.success()
}

/// Checks if a file has a given extension
// https://stackoverflow.com/questions/72392835/check-if-a-file-is-of-a-given-type
pub trait FileExtension {
    fn has_extension<S: AsRef<str>>(&self, extensions: &[S]) -> bool;
}

impl<P: AsRef<Path>> FileExtension for P {
    fn has_extension<S: AsRef<str>>(&self, extensions: &[S]) -> bool {
        if let Some(extension) = self.as_ref().extension().and_then(OsStr::to_str) {
            return extensions
                .iter()
                .any(|x| x.as_ref().eq_ignore_ascii_case(extension));
        }

        false
    }
}