Method try_from

alpm-package/src/input.rs:627–665

Creates a [`PackageInput`] from input directory `path`. This function reads [ALPM-MTREE], [BUILDINFO] and [PKGINFO] files in `path`, collects the path of an existing [alpm-install-scriptlet] and validates them. All data files below `path` are then checked against the [ALPM-MTREE] data. # Errors Returns an error if - `value` is not a valid [`InputDir`], - there is no valid [BUILDINFO] file, - t

(value: InputDir)

    /// [PKGINFO]: https://alpm.archlinux.page/specifications/PKGINFO.5.html
    /// [alpm-install-scriptlet]: https://alpm.archlinux.page/specifications/alpm-install-scriptlet.5.html
    fn try_from(value: InputDir) -> Result<Self, Self::Error> {
        debug!("Create PackageInput from path {value:?}");

        // Get Mtree data and file digest.
        let (mtree, mtree_digest) = get_mtree(&value)?;

        // Get all relative paths in value.
        let relative_paths = relative_files(&value, &[])?;
        trace!("Relative files:\n{relative_paths:?}");

        // When comparing with ALPM-MTREE data, exclude the ALPM-MTREE file.
        let relative_mtree_paths: Vec<PathBuf> = relative_paths
            .iter()
            .filter(|path| path.as_os_str() != MetadataFileName::Mtree.as_ref())
            .cloned()
            .collect();
        mtree.validate_paths(&InputPaths::new(value.as_ref(), &relative_mtree_paths)?)?;

        // Get PackageInfo data and file digest.
        let package_info = get_package_info(&value, &mtree)?;
        // Get BuildInfo data and file digest.
        let build_info = get_build_info(&value, &mtree)?;

        // Compare overlapping metadata of BuildInfo and PackageInfo data.
        compare_build_info_package_info(&build_info, &package_info)?;

        // Get optional scriptlet file.
        let scriptlet = get_install_scriptlet(&value, &mtree)?;

        Ok(Self {
            build_info,
            package_info,
            mtree,
            mtree_digest,
            input_dir: value,
            scriptlet,
            relative_paths,
        })
    }
}

#[cfg(test)]