exa/src/dir.rs

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Rust
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use std::io::{fs, IoResult};
use file::File;
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/// A **Dir** provides a cached list of the file paths in a directory that's
/// being listed.
///
/// This object gets passed to the Files themselves, in order for them to
/// check the existence of surrounding files, then highlight themselves
/// accordingly. (See `File#get_source_files`)
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pub struct Dir {
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contents: Vec<Path>,
path: Path,
}
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impl Dir {
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/// Create a new Dir object filled with all the files in the directory
/// pointed to by the given path. Fails if the directory can't be read, or
/// isn't actually a directory.
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pub fn readdir(path: Path) -> IoResult<Dir> {
fs::readdir(&path).map(|paths| Dir {
contents: paths,
path: path.clone(),
})
}
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/// Produce a vector of File objects from an initialised directory,
/// printing out an error if any of the Files fail to be created.
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pub fn files(&self) -> Vec<File> {
let mut files = vec![];
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for path in self.contents.iter() {
match File::from_path(path, Some(self)) {
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Ok(file) => files.push(file),
Err(e) => println!("{}: {}", path.display(), e),
}
}
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files
}
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/// Whether this directory contains a file with the given path.
pub fn contains(&self, path: &Path) -> bool {
self.contents.contains(path)
}
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/// Append a path onto the path specified by this directory.
pub fn join(&self, child: Path) -> Path {
self.path.join(child)
}
}