Expand description
This crate defines the shell execution environment.
A shell execution environment, Env, is a collection of data that may
affect or be affected by the execution of commands. The environment consists
of application-managed parts and system-managed parts. Application-managed
parts are implemented in pure Rust in this crate. Many application-managed
parts like functions and variables can be manipulated independently of
interactions with the underlying system. System-managed parts, on the other
hand, depend on the underlying system. Attributes like the working directory
and umask are managed by the system to be accessed only by interaction with
the system interface.
The System trait is the interface to the system-managed parts.
RealSystem provides an implementation for System that interacts with
the underlying system. VirtualSystem is a dummy for simulating the
system’s behavior without affecting the actual system.
Re-exports§
pub use self::system::System;pub use self::system::real::RealSystem;pub use self::system::virtual::VirtualSystem;pub use unix_path as path;pub use unix_str as str;
Modules§
- any
- Types for storing arbitrary data in the environment
- builtin
- Type definitions for built-in utilities
- function
- Type definitions for functions.
- input
- Methods about passing source code to the parser.
- io
- Type definitions for I/O.
- job
- Type definitions for job management.
- option
- Type definitions for shell options
- pwd
- Working directory path handling
- semantics
- Type definitions for command execution.
- signal
- Type definitions for signals
- stack
- Runtime execution context stack
- subshell
- Utility for starting subshells
- system
- System and its implementors.
- trap
- Signal and other event handling settings.
- variable
- Items for shell variables
Structs§
- Env
- Whole shell execution environment.