unity-hub 0.6.1

Wrapper library around Unity hub to fetch and manipulate Unity Hub configs
Documentation 
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use std::fs::File;
use std::path::PathBuf;

pub fn default_install_path() -> Option<PathBuf> {
    #[cfg(any(target_os = "windows", target_os = "macos"))]
    let application_path = dirs_2::application_dir();
    #[cfg(target_os = "linux")]
    let application_path = dirs_2::home_dir();
    application_path.map(|path| path.join(["Unity", "Hub", "Editor"].iter().collect::<PathBuf>()))
}

pub fn install_path() -> Option<PathBuf> {
    secondary_install_path_config_path()
        .and_then(|path| {
            File::open(path)
                .and_then(|file| {
                    let path: PathBuf = serde_json::from_reader(file)?;
                    Ok(path)
                }).ok()
        })
        //filter out the default value `""` in secondaryInstallPath.json
        .filter(|p| p.as_os_str() != std::ffi::OsStr::new(""))
        .or_else(default_install_path)
}

pub fn config_path() -> Option<PathBuf> {
    #[cfg(any(target_os = "windows", target_os = "macos"))]
    return dirs_2::data_dir().map(|path| path.join("UnityHub"));

    #[cfg(target_os = "linux")]
    return dirs_2::config_dir().map(|path| path.join("UnityHub"));
}

pub fn editors_config_path() -> Option<PathBuf> {
    config_path().map(|path| path.join("editors.json"))
}

pub fn secondary_install_path_config_path() -> Option<PathBuf> {
    config_path().map(|path| path.join("secondaryInstallPath.json"))
}

pub fn default_editor_config_path() -> Option<PathBuf> {
    config_path().map(|path| path.join("defaultEditor.json"))
}

pub fn cache_dir() -> Option<PathBuf> {
    dirs_2::cache_dir().map(|path| path.join("com.github.larusso.unity-version-manager"))
}

pub fn locks_dir() -> Option<PathBuf> {
    cache_dir().map(|path| path.join("locks"))
}

pub fn hash_cache_dir() -> Option<PathBuf> {
    cache_dir().map(|path| path.join("versions"))
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_dirs() {
        println!(
            "default_editor_config_path:          {:?}",
            default_editor_config_path()
        );
        println!(
            "secondary_install_path_config_path:  {:?}",
            secondary_install_path_config_path()
        );
        println!(
            "editors_config_path:                 {:?}",
            editors_config_path()
        );
        println!("config_path:                         {:?}", config_path());
        println!("install_path:                        {:?}", install_path());
        println!(
            "default_install_path:                {:?}",
            default_install_path()
        );
        println!("cache_dir:                           {:?}", cache_dir());
        println!("locks:                               {:?}", locks_dir());
    }
}