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use std::fs::FileType as StdFileType;
use std::path::PathBuf;
use derive_more::IsVariant;
use serde::{Deserialize, Serialize};
use strum::AsRefStr;
/// Represents information about a single entry within a directory
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(rename_all = "snake_case", deny_unknown_fields)]
pub struct DirEntry {
/// Represents the full path to the entry
pub path: PathBuf,
/// Represents the type of the entry as a file/dir/symlink
pub file_type: FileType,
/// Depth at which this entry was created relative to the root (0 being immediately within
/// root)
pub depth: usize,
}
/// Represents the type associated with a dir entry
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, AsRefStr, IsVariant, Serialize, Deserialize)]
#[serde(rename_all = "snake_case", deny_unknown_fields)]
#[strum(serialize_all = "snake_case")]
pub enum FileType {
Dir,
File,
Symlink,
}
impl From<StdFileType> for FileType {
fn from(ft: StdFileType) -> Self {
if ft.is_dir() {
Self::Dir
} else if ft.is_symlink() {
Self::Symlink
} else {
Self::File
}
}
}
#[cfg(test)]
mod tests {
use super::*;
mod dir_entry {
use super::*;
#[test]
fn should_be_able_to_serialize_to_json() {
let entry = DirEntry {
path: PathBuf::from("dir").join("file"),
file_type: FileType::File,
depth: 1,
};
let path = entry.path.to_str().unwrap().to_string();
let value = serde_json::to_value(entry).unwrap();
assert_eq!(
value,
serde_json::json!({
"path": path,
"file_type": "file",
"depth": 1,
})
);
}
#[test]
fn should_be_able_to_deserialize_from_json() {
let value = serde_json::json!({
"path": "test-file",
"file_type": "file",
"depth": 0,
});
let entry: DirEntry = serde_json::from_value(value).unwrap();
assert_eq!(
entry,
DirEntry {
path: PathBuf::from("test-file"),
file_type: FileType::File,
depth: 0,
}
);
}
#[test]
fn should_be_able_to_serialize_to_msgpack() {
let entry = DirEntry {
path: PathBuf::from("dir").join("file"),
file_type: FileType::File,
depth: 1,
};
// NOTE: We don't actually check the output here because it's an implementation detail
// and could change as we change how serialization is done. This is merely to verify
// that we can serialize since there are times when serde fails to serialize at
// runtime.
let _ = rmp_serde::encode::to_vec_named(&entry).unwrap();
}
#[test]
fn should_be_able_to_deserialize_from_msgpack() {
// NOTE: It may seem odd that we are serializing just to deserialize, but this is to
// verify that we are not corrupting or causing issues when serializing on a
// client/server and then trying to deserialize on the other side. This has happened
// enough times with minor changes that we need tests to verify.
let buf = rmp_serde::encode::to_vec_named(&DirEntry {
path: PathBuf::from("test-file"),
file_type: FileType::File,
depth: 0,
})
.unwrap();
let entry: DirEntry = rmp_serde::decode::from_slice(&buf).unwrap();
assert_eq!(
entry,
DirEntry {
path: PathBuf::from("test-file"),
file_type: FileType::File,
depth: 0,
}
);
}
}
mod file_type {
use super::*;
#[test]
fn should_be_able_to_serialize_to_json() {
let ty = FileType::File;
let value = serde_json::to_value(ty).unwrap();
assert_eq!(value, serde_json::json!("file"));
}
#[test]
fn should_be_able_to_deserialize_from_json() {
let value = serde_json::json!("file");
let ty: FileType = serde_json::from_value(value).unwrap();
assert_eq!(ty, FileType::File);
}
#[test]
fn should_be_able_to_serialize_to_msgpack() {
let ty = FileType::File;
// NOTE: We don't actually check the output here because it's an implementation detail
// and could change as we change how serialization is done. This is merely to verify
// that we can serialize since there are times when serde fails to serialize at
// runtime.
let _ = rmp_serde::encode::to_vec_named(&ty).unwrap();
}
#[test]
fn should_be_able_to_deserialize_from_msgpack() {
// NOTE: It may seem odd that we are serializing just to deserialize, but this is to
// verify that we are not corrupting or causing issues when serializing on a
// client/server and then trying to deserialize on the other side. This has happened
// enough times with minor changes that we need tests to verify.
let buf = rmp_serde::encode::to_vec_named(&FileType::File).unwrap();
let ty: FileType = rmp_serde::decode::from_slice(&buf).unwrap();
assert_eq!(ty, FileType::File);
}
}
}