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refactor(nix-compat/store_path): use Path in from_absolute_path_full

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These are not necessarily strings, and making it paths allows us to stop
converting them to lossy strings.

Change-Id: I11366c721dc5da1778aafe89092a1966b5a43178
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12617
Reviewed-by: Ilan Joselevich <personal@ilanjoselevich.com>
Reviewed-by: Jörg Thalheim <joerg@thalheim.io>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This commit is contained in:
Florian Klink 2024-10-14 15:51:29 +03:00 • committed by clbot
parent da8fccba7a
commit 330145fa1f
2 changed files with 17 additions and 32 deletions
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16
tvix/glue/src/tvix_store_io.rs
View file

@ -449,9 +449,7 @@ impl TvixStoreIO {
impl EvalIO for TvixStoreIO {
#[instrument(skip(self), ret(level = Level::TRACE), err)]
fn path_exists(&self, path: &Path) -> io::Result<bool> {
if let Ok((store_path, sub_path)) =
StorePath::from_absolute_path_full(&path.to_string_lossy())
{
if let Ok((store_path, sub_path)) = StorePath::from_absolute_path_full(path) {
if self
.tokio_handle
.block_on(self.store_path_to_node(&store_path, sub_path))?
@ -471,9 +469,7 @@ impl EvalIO for TvixStoreIO {
#[instrument(skip(self), err)]
fn open(&self, path: &Path) -> io::Result<Box<dyn io::Read>> {
if let Ok((store_path, sub_path)) =
StorePath::from_absolute_path_full(&path.to_string_lossy())
{
if let Ok((store_path, sub_path)) = StorePath::from_absolute_path_full(path) {
if let Some(node) = self
.tokio_handle
.block_on(async { self.store_path_to_node(&store_path, sub_path).await })?
@ -527,9 +523,7 @@ impl EvalIO for TvixStoreIO {
#[instrument(skip(self), ret(level = Level::TRACE), err)]
fn file_type(&self, path: &Path) -> io::Result<FileType> {
if let Ok((store_path, sub_path)) =
StorePath::from_absolute_path_full(&path.to_string_lossy())
{
if let Ok((store_path, sub_path)) = StorePath::from_absolute_path_full(path) {
if let Some(node) = self
.tokio_handle
.block_on(async { self.store_path_to_node(&store_path, sub_path).await })?
@ -549,9 +543,7 @@ impl EvalIO for TvixStoreIO {
#[instrument(skip(self), ret(level = Level::TRACE), err)]
fn read_dir(&self, path: &Path) -> io::Result<Vec<(bytes::Bytes, FileType)>> {
if let Ok((store_path, sub_path)) =
StorePath::from_absolute_path_full(&path.to_string_lossy())
{
if let Ok((store_path, sub_path)) = StorePath::from_absolute_path_full(path) {
if let Some(node) = self
.tokio_handle
.block_on(async { self.store_path_to_node(&store_path, sub_path).await })?

25
tvix/nix-compat/src/store_path/mod.rs
View file

@ -9,9 +9,6 @@ use std::{
};
use thiserror;
#[cfg(target_family = "unix")]
use std::os::unix::ffi::OsStrExt;
mod utils;
pub use utils::*;
@ -160,31 +157,27 @@ where
/// Decompose a string into a [StorePath] and a [PathBuf] containing the
/// rest of the path, or an error.
#[cfg(target_family = "unix")]
pub fn from_absolute_path_full<'a>(s: &'a str) -> Result<(Self, &'a Path), Error>
pub fn from_absolute_path_full<'a, P>(path: &'a P) -> Result<(Self, &'a Path), Error>
where
S: From<&'a str>,
P: AsRef<std::path::Path> + ?Sized,
{
// strip [STORE_DIR_WITH_SLASH] from s
let p = path
.as_ref()
.strip_prefix(STORE_DIR_WITH_SLASH)
.map_err(|_e| Error::MissingStoreDir)?;
match s.strip_prefix(STORE_DIR_WITH_SLASH) {
None => Err(Error::MissingStoreDir),
Some(rest) => {
let mut it = Path::new(rest).components();
let mut it = Path::new(p).components();
// The first component of the rest must be parse-able as a [StorePath]
if let Some(first_component) = it.next() {
// convert first component to StorePath
let store_path = StorePath::from_bytes(first_component.as_os_str().as_bytes())?;
let first_component = it.next().ok_or(Error::InvalidLength)?;
let store_path = StorePath::from_bytes(first_component.as_os_str().as_encoded_bytes())?;
// collect rest
let rest_buf = it.as_path();
Ok((store_path, rest_buf))
} else {
Err(Error::InvalidLength) // Well, or missing "/"?
}
}
}
}
/// Returns an absolute store path string.