reth_node_core/dirs.rs
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//! reth data directories.
use crate::{args::DatadirArgs, utils::parse_path};
use reth_chainspec::Chain;
use std::{
env::VarError,
fmt::{Debug, Display, Formatter},
path::{Path, PathBuf},
str::FromStr,
};
/// Constructs a string to be used as a path for configuration and db paths.
pub fn config_path_prefix(chain: Chain) -> String {
chain.to_string()
}
/// Returns the path to the reth data directory.
///
/// Refer to [`dirs_next::data_dir`] for cross-platform behavior.
pub fn data_dir() -> Option<PathBuf> {
dirs_next::data_dir().map(|root| root.join("reth"))
}
/// Returns the path to the reth database.
///
/// Refer to [`dirs_next::data_dir`] for cross-platform behavior.
pub fn database_path() -> Option<PathBuf> {
data_dir().map(|root| root.join("db"))
}
/// Returns the path to the reth configuration directory.
///
/// Refer to [`dirs_next::config_dir`] for cross-platform behavior.
pub fn config_dir() -> Option<PathBuf> {
dirs_next::config_dir().map(|root| root.join("reth"))
}
/// Returns the path to the reth cache directory.
///
/// Refer to [`dirs_next::cache_dir`] for cross-platform behavior.
pub fn cache_dir() -> Option<PathBuf> {
dirs_next::cache_dir().map(|root| root.join("reth"))
}
/// Returns the path to the reth logs directory.
///
/// Refer to [`dirs_next::cache_dir`] for cross-platform behavior.
pub fn logs_dir() -> Option<PathBuf> {
cache_dir().map(|root| root.join("logs"))
}
/// Returns the path to the reth data dir.
///
/// The data dir should contain a subdirectory for each chain, and those chain directories will
/// include all information for that chain, such as the p2p secret.
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
#[non_exhaustive]
pub struct DataDirPath;
impl XdgPath for DataDirPath {
fn resolve() -> Option<PathBuf> {
data_dir()
}
}
/// Returns the path to the reth logs directory.
///
/// Refer to [`dirs_next::cache_dir`] for cross-platform behavior.
#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
#[non_exhaustive]
pub struct LogsDir;
impl XdgPath for LogsDir {
fn resolve() -> Option<PathBuf> {
logs_dir()
}
}
/// A small helper trait for unit structs that represent a standard path following the XDG
/// path specification.
pub trait XdgPath {
/// Resolve the standard path.
fn resolve() -> Option<PathBuf>;
}
/// A wrapper type that either parses a user-given path or defaults to an
/// OS-specific path.
///
/// The [`FromStr`] implementation supports shell expansions and common patterns such as `~` for the
/// home directory.
///
/// # Example
///
/// ```
/// use reth_node_core::dirs::{DataDirPath, PlatformPath};
/// use std::str::FromStr;
///
/// // Resolves to the platform-specific database path
/// let default: PlatformPath<DataDirPath> = PlatformPath::default();
/// // Resolves to `$(pwd)/my/path/to/datadir`
/// let custom: PlatformPath<DataDirPath> = PlatformPath::from_str("my/path/to/datadir").unwrap();
///
/// assert_ne!(default.as_ref(), custom.as_ref());
/// ```
#[derive(Debug, PartialEq, Eq)]
pub struct PlatformPath<D>(PathBuf, std::marker::PhantomData<D>);
impl<D> Display for PlatformPath<D> {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.0.display())
}
}
impl<D> Clone for PlatformPath<D> {
fn clone(&self) -> Self {
Self(self.0.clone(), std::marker::PhantomData)
}
}
impl<D: XdgPath> Default for PlatformPath<D> {
fn default() -> Self {
Self(
D::resolve().expect("Could not resolve default path. Set one manually."),
std::marker::PhantomData,
)
}
}
impl<D> FromStr for PlatformPath<D> {
type Err = shellexpand::LookupError<VarError>;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(Self(parse_path(s)?, std::marker::PhantomData))
}
}
impl<D> AsRef<Path> for PlatformPath<D> {
fn as_ref(&self) -> &Path {
self.0.as_path()
}
}
impl<D> From<PlatformPath<D>> for PathBuf {
fn from(value: PlatformPath<D>) -> Self {
value.0
}
}
impl<D> PlatformPath<D> {
/// Returns the path joined with another path
pub fn join<P: AsRef<Path>>(&self, path: P) -> Self {
Self(self.0.join(path), std::marker::PhantomData)
}
}
impl<D> PlatformPath<D> {
/// Converts the path to a `ChainPath` with the given `Chain`.
pub fn with_chain(&self, chain: Chain, datadir_args: DatadirArgs) -> ChainPath<D> {
// extract chain name
let platform_path = self.platform_path_from_chain(chain);
ChainPath::new(platform_path, chain, datadir_args)
}
fn platform_path_from_chain(&self, chain: Chain) -> Self {
let chain_name = config_path_prefix(chain);
let path = self.0.join(chain_name);
Self(path, std::marker::PhantomData)
}
/// Map the inner path to a new type `T`.
pub fn map_to<T>(&self) -> PlatformPath<T> {
PlatformPath(self.0.clone(), std::marker::PhantomData)
}
}
/// An Optional wrapper type around [`PlatformPath`].
///
/// This is useful for when a path is optional, such as the `--data-dir` flag.
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct MaybePlatformPath<D>(Option<PlatformPath<D>>);
// === impl MaybePlatformPath ===
impl<D: XdgPath> MaybePlatformPath<D> {
/// Returns the path if it is set, otherwise returns the default path for the given chain.
pub fn unwrap_or_chain_default(&self, chain: Chain, datadir_args: DatadirArgs) -> ChainPath<D> {
ChainPath(
self.0
.clone()
.unwrap_or_else(|| PlatformPath::default().platform_path_from_chain(chain)),
chain,
datadir_args,
)
}
/// Returns the default platform path for the specified [Chain].
pub fn chain_default(chain: Chain) -> ChainPath<D> {
PlatformPath::default().with_chain(chain, DatadirArgs::default())
}
/// Returns true if a custom path is set
pub const fn is_some(&self) -> bool {
self.0.is_some()
}
/// Returns the path if it is set, otherwise returns `None`.
pub fn as_ref(&self) -> Option<&Path> {
self.0.as_ref().map(|p| p.as_ref())
}
/// Returns the path if it is set, otherwise returns the default path, without any chain
/// directory.
pub fn unwrap_or_default(&self) -> PlatformPath<D> {
self.0.clone().unwrap_or_default()
}
}
impl<D: XdgPath> Display for MaybePlatformPath<D> {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
if let Some(path) = &self.0 {
path.fmt(f)
} else {
// NOTE: this is a workaround for making it work with clap's `default_value_t` which
// computes the default value via `Default -> Display -> FromStr`
write!(f, "default")
}
}
}
impl<D> Default for MaybePlatformPath<D> {
fn default() -> Self {
Self(None)
}
}
impl<D> FromStr for MaybePlatformPath<D> {
type Err = shellexpand::LookupError<VarError>;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let p = match s {
"default" => {
// NOTE: this is a workaround for making it work with clap's `default_value_t` which
// computes the default value via `Default -> Display -> FromStr`
None
}
_ => Some(PlatformPath::from_str(s)?),
};
Ok(Self(p))
}
}
impl<D> From<PathBuf> for MaybePlatformPath<D> {
fn from(path: PathBuf) -> Self {
Self(Some(PlatformPath(path, std::marker::PhantomData)))
}
}
/// Wrapper type around `PlatformPath` that includes a `Chain`, used for separating reth data for
/// different networks.
///
/// If the chain is either mainnet, sepolia, or holesky, then the path will be:
/// * mainnet: `<DIR>/mainnet`
/// * sepolia: `<DIR>/sepolia`
/// * holesky: `<DIR>/holesky`
///
/// Otherwise, the path will be dependent on the chain ID:
/// * `<DIR>/<CHAIN_ID>`
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct ChainPath<D>(PlatformPath<D>, Chain, DatadirArgs);
impl<D> ChainPath<D> {
/// Returns a new `ChainPath` given a `PlatformPath` and a `Chain`.
pub const fn new(path: PlatformPath<D>, chain: Chain, datadir_args: DatadirArgs) -> Self {
Self(path, chain, datadir_args)
}
/// Returns the path to the reth data directory for this chain.
///
/// `<DIR>/<CHAIN_ID>`
pub fn data_dir(&self) -> &Path {
self.0.as_ref()
}
/// Returns the path to the db directory for this chain.
///
/// `<DIR>/<CHAIN_ID>/db`
pub fn db(&self) -> PathBuf {
self.data_dir().join("db")
}
/// Returns the path to the static files directory for this chain.
///
/// `<DIR>/<CHAIN_ID>/static_files`
pub fn static_files(&self) -> PathBuf {
let datadir_args = &self.2;
if let Some(static_files_path) = &datadir_args.static_files_path {
static_files_path.clone()
} else {
self.data_dir().join("static_files")
}
}
/// Returns the path to the reth p2p secret key for this chain.
///
/// `<DIR>/<CHAIN_ID>/discovery-secret`
pub fn p2p_secret(&self) -> PathBuf {
self.data_dir().join("discovery-secret")
}
/// Returns the path to the known peers file for this chain.
///
/// `<DIR>/<CHAIN_ID>/known-peers.json`
pub fn known_peers(&self) -> PathBuf {
self.data_dir().join("known-peers.json")
}
/// Returns the path to the blobstore directory for this chain where blobs of unfinalized
/// transactions are stored.
///
/// `<DIR>/<CHAIN_ID>/blobstore`
pub fn blobstore(&self) -> PathBuf {
self.data_dir().join("blobstore")
}
/// Returns the path to the local transactions backup file
///
/// `<DIR>/<CHAIN_ID>/txpool-transactions-backup.rlp`
pub fn txpool_transactions(&self) -> PathBuf {
self.data_dir().join("txpool-transactions-backup.rlp")
}
/// Returns the path to the config file for this chain.
///
/// `<DIR>/<CHAIN_ID>/reth.toml`
pub fn config(&self) -> PathBuf {
self.data_dir().join("reth.toml")
}
/// Returns the path to the jwtsecret file for this chain.
///
/// `<DIR>/<CHAIN_ID>/jwt.hex`
pub fn jwt(&self) -> PathBuf {
self.data_dir().join("jwt.hex")
}
/// Returns the path to the invalid block hooks directory for this chain.
///
/// `<DIR>/<CHAIN_ID>/invalid_block_hooks`
pub fn invalid_block_hooks(&self) -> PathBuf {
self.data_dir().join("invalid_block_hooks")
}
/// Returns the path to the ExEx WAL directory for this chain.
pub fn exex_wal(&self) -> PathBuf {
self.data_dir().join("exex/wal")
}
}
impl<D> AsRef<Path> for ChainPath<D> {
fn as_ref(&self) -> &Path {
self.0.as_ref()
}
}
impl<D> Display for ChainPath<D> {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", self.0)
}
}
impl<D> From<ChainPath<D>> for PathBuf {
fn from(value: ChainPath<D>) -> Self {
value.0.into()
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_maybe_data_dir_path() {
let path = MaybePlatformPath::<DataDirPath>::default();
let path = path.unwrap_or_chain_default(Chain::mainnet(), DatadirArgs::default());
assert!(path.as_ref().ends_with("reth/mainnet"), "{path:?}");
let db_path = path.db();
assert!(db_path.ends_with("reth/mainnet/db"), "{db_path:?}");
let path = MaybePlatformPath::<DataDirPath>::from_str("my/path/to/datadir").unwrap();
let path = path.unwrap_or_chain_default(Chain::mainnet(), DatadirArgs::default());
assert!(path.as_ref().ends_with("my/path/to/datadir"), "{path:?}");
}
#[test]
fn test_maybe_testnet_datadir_path() {
let path = MaybePlatformPath::<DataDirPath>::default();
let path = path.unwrap_or_chain_default(Chain::holesky(), DatadirArgs::default());
assert!(path.as_ref().ends_with("reth/holesky"), "{path:?}");
let path = MaybePlatformPath::<DataDirPath>::default();
let path = path.unwrap_or_chain_default(Chain::sepolia(), DatadirArgs::default());
assert!(path.as_ref().ends_with("reth/sepolia"), "{path:?}");
}
}