# Description
This PR adds new types to `nu-path` to enforce path invariants. Namely,
this PR adds:
- `Path` and `PathBuf`. These types are different from, but analogous to
`std::path::Path` and `std::path::PathBuf`.
- `RelativePath` and `RelativePathBuf`. These types must be/contain
strictly relative paths.
- `AbsolutePath` and `AbsolutePathBuf`. These types must be/contain
strictly absolute paths.
- `CanonicalPath` and `CanonicalPathBuf`. These types must be/contain
canonical paths.
Operations are prohibited as necessary to ensure that the invariants of
each type are upheld (needs double-checking).
Only paths that are absolute (or canonical) can be easily used as /
converted to `std::path::Path`s. This is to help force us to account for
the emulated current working directory instead of accidentally using the
current directory of the Nushell process (i.e.,
`std::env::current_dir`). Related to #12975 and #12976.
Note that this PR uses several declarative macros, as the file / this PR
would otherwise be 5000 lines long.
# User-Facing Changes
No major changes yet, just adds types to `nu-path` to be used in the
future.
# After Submitting
Actually use the new path types in all our crates where it makes sense,
removing usages of `std::path` types.
# Description
Fixes: https://github.com/nushell/nushell/issues/12099
Currently if user run `use voice.nu`, and file is unchanged, then run
`use voice.nu` again. nushell will use the module directly, even if
submodule inside `voice.nu` is changed.
After discussed with @kubouch, I think it's ok to re-parse the module
file when:
1. It exports sub modules which are defined by a file
2. It uses other modules which are defined by a file
## About the change:
To achieve the behavior, we need to add 2 attributes to `Module`:
1. `imported_modules`: it tracks the other modules is imported by the
givem `module`, e.g: `use foo.nu`
2. `file`: the path of a module, if a module is defined by a file, it
will be `Some(path)`, or else it will be `None`.
After the change:
use voice.nu always read the file and parse it.
use voice will still use the module which is saved in EngineState.
# User-Facing Changes
use `xxx.nu` will read the file and parse it if it exports submodules or
uses submodules
# Tests + Formatting
Done
---------
Co-authored-by: Jakub Žádník <kubouch@gmail.com>
