about summary refs log tree commit diff
path: root/tvix/cli/src/tvix_io.rs
diff options
context:
space:
mode:
Diffstat (limited to 'tvix/cli/src/tvix_io.rs')
-rw-r--r--tvix/cli/src/tvix_io.rs79
1 files changed, 0 insertions, 79 deletions
diff --git a/tvix/cli/src/tvix_io.rs b/tvix/cli/src/tvix_io.rs
deleted file mode 100644
index 74f91138bff8..000000000000
--- a/tvix/cli/src/tvix_io.rs
+++ /dev/null
@@ -1,79 +0,0 @@
-//! This module implements a wrapper around tvix-eval's [EvalIO] type,
-//! adding functionality which is required by tvix-cli:
-//!
-//! 1. Marking plain paths known to the reference scanner.
-//! 2. Handling the C++ Nix `__corepkgs__`-hack for nixpkgs bootstrapping.
-//!
-//! All uses of [EvalIO] in tvix-cli must make use of this wrapper,
-//! otherwise fundamental features like nixpkgs bootstrapping and hash
-//! calculation will not work.
-
-use crate::KnownPaths;
-use std::cell::RefCell;
-use std::io;
-use std::path::{Path, PathBuf};
-use std::rc::Rc;
-use tvix_eval::{EvalIO, FileType};
-
-// TODO: Merge this together with TvixStoreIO?
-pub(crate) struct TvixIO<T: EvalIO> {
-    /// Ingested paths must be reported to this known paths tracker
-    /// for accurate build reference scanning.
-    known_paths: Rc<RefCell<KnownPaths>>,
-
-    // Actual underlying [EvalIO] implementation.
-    actual: T,
-}
-
-impl<T: EvalIO> TvixIO<T> {
-    pub(crate) fn new(known_paths: Rc<RefCell<KnownPaths>>, actual: T) -> Self {
-        Self {
-            known_paths,
-            actual,
-        }
-    }
-}
-
-impl<T: EvalIO> EvalIO for TvixIO<T> {
-    fn store_dir(&self) -> Option<String> {
-        self.actual.store_dir()
-    }
-
-    fn import_path(&self, path: &Path) -> Result<PathBuf, io::Error> {
-        let imported_path = self.actual.import_path(path)?;
-        self.known_paths
-            .borrow_mut()
-            .plain(imported_path.to_string_lossy());
-
-        Ok(imported_path)
-    }
-
-    fn path_exists(&self, path: &Path) -> Result<bool, io::Error> {
-        if path.starts_with("/__corepkgs__") {
-            return Ok(true);
-        }
-
-        self.actual.path_exists(path)
-    }
-
-    fn read_to_string(&self, path: &Path) -> Result<String, io::Error> {
-        // Bundled version of corepkgs/fetchurl.nix. The counterpart
-        // of this happens in `main`, where the `nix_path` of the
-        // evaluation has `nix=/__corepkgs__` added to it.
-        //
-        // This workaround is similar to what cppnix does for passing
-        // the path through.
-        //
-        // TODO: this comparison is bad and allocates, we should use
-        // the sane path library.
-        if path.starts_with("/__corepkgs__/fetchurl.nix") {
-            return Ok(include_str!("fetchurl.nix").to_string());
-        }
-
-        self.actual.read_to_string(path)
-    }
-
-    fn read_dir(&self, path: &Path) -> Result<Vec<(bytes::Bytes, FileType)>, io::Error> {
-        self.actual.read_dir(path)
-    }
-}