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41 lines
1.2 KiB
41 lines
1.2 KiB
use std::error::Error;
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use std::fmt;
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use std::fs;
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use std::os::unix::fs::MetadataExt;
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use users::get_user_by_name;
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use symbols::Symbol;
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use command_runner::CommandRunner;
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pub struct Owner<'a, D> where D: AsRef<str> + fmt::Display {
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path: D,
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user_name: &'a str,
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command_runner: &'a CommandRunner
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}
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impl<'a, D> Owner<'a, D> where D: AsRef<str> + fmt::Display {
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pub fn new(path: D, user_name: &'a str, command_runner: &'a CommandRunner) -> Self {
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Owner { path: path, user_name: user_name, command_runner: command_runner }
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}
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}
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impl<'a, D> Symbol for Owner<'a, D> where D: AsRef<str> + fmt::Display {
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fn target_reached(&self) -> Result<bool, Box<Error>> {
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let actual_uid = fs::metadata(self.path.as_ref()).unwrap().uid();
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let target_uid = get_user_by_name(self.user_name).unwrap().uid();
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Ok(actual_uid == target_uid)
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}
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fn execute(&self) -> Result<(), Box<Error>> {
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try!(self.command_runner.run_with_args("chown", &[self.user_name, self.path.as_ref()]));
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Ok(())
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}
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}
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impl<'a, D> fmt::Display for Owner<'a, D> where D: AsRef<str> + fmt::Display {
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fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error>{
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write!(f, "Owner {} for {}", self.user_name, self.path)
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}
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}
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