Trait FileRead

Source

pub trait FileRead {
Show 15 methods    // Required methods
    fn pkgname(&self) -> &str;
    fn comment(&self) -> Result<String>;
    fn contents(&self) -> Result<String>;
    fn desc(&self) -> Result<String>;
    fn build_info(&self) -> Result<Option<String>>;
    fn build_version(&self) -> Result<Option<String>>;
    fn deinstall(&self) -> Result<Option<String>>;
    fn display(&self) -> Result<Option<String>>;
    fn install(&self) -> Result<Option<String>>;
    fn installed_info(&self) -> Result<Option<String>>;
    fn mtree_dirs(&self) -> Result<Option<String>>;
    fn preserve(&self) -> Result<Option<String>>;
    fn required_by(&self) -> Result<Option<String>>;
    fn size_all(&self) -> Result<Option<String>>;
    fn size_pkg(&self) -> Result<Option<String>>;
}

Expand description

Trait for types that provide package metadata.

This trait abstracts over different package sources (binary archives, installed packages) providing a unified interface for accessing metadata.

§Return Types

Required metadata (comment, contents, desc) returns io::Result<String> since these files must exist for a valid package.
Optional metadata returns io::Result<Option<String>>:
- Ok(Some(content)) - File exists and was read successfully
- Ok(None) - File does not exist (this is normal for optional metadata)
- Err(e) - An I/O error occurred (permission denied, disk failure, etc.)