magicant / yash-rs

Reimplementation of yash, an extended POSIX shell
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Redefine FdFlag #393

Closed magicant closed 3 months ago

magicant commented 3 months ago

This pull request is part of https://github.com/magicant/yash-rs/issues/353 and replaces the FdFlag type with a platform-independent definition.

Summary by CodeRabbit

coderabbitai[bot] commented 3 months ago

Walkthrough

This update enhances the yash-env project by reworking the handling of file descriptor flags, transitioning from singular flag types to an EnumSet<FdFlag> model. This change promotes more flexible and extensible flag management, allowing multiple flags to be used simultaneously. The modifications span various modules, improving clarity, functionality, and maintaining consistency throughout the codebase.

Changes

Files Change Summary
yash-builtin/src/source/semantics.rs Updated assertions in tests to utilize EnumSet<FdFlag> for flag handling.
yash-env/CHANGELOG.md Documented major type redefinitions and method signature changes for FdFlag and Mode.
yash-env/src/system.rs Updated System trait methods to use EnumSet<FdFlag> for handling flags instead of FdFlag.
yash-env/src/system/fd_flag.rs Introduced a new FdFlag enum with EnumSetType, enhancing flag management capabilities.
yash-env/src/system/real.rs Altered RealSystem methods to accept and return EnumSet<FdFlag> for file descriptor operations.
yash-env/src/system/shared.rs Updated SharedSystem to use EnumSet<FdFlag> in various file descriptor-related methods.
yash-env/src/system/virtual.rs Adjusted VirtualSystem to replace FdFlag with EnumSet<FdFlag> in flag handling.
yash-env/src/system/virtual/io.rs Changed FdBody structure to hold flags: EnumSet<FdFlag> instead of a single FdFlag.
yash-env/src/system/virtual/process.rs Renamed flag to flags in FdBody, updating logic to handle multiple flags.
yash-semantics/src/command/pipeline.rs Modified flag checks and assertions to utilize EnumSet for improved file descriptor management.
yash-semantics/src/redir.rs Renamed FD_CLOEXEC to CloseOnExec, updating function calls to reflect the new naming.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant System
    participant FdFlag
    participant EnumSet

    User->>System: Request file descriptor operation
    System->>FdFlag: Check flags
    FdFlag->>EnumSet: Convert to EnumSet<FdFlag>
    System->>EnumSet: Process multiple flags
    EnumSet-->>System: Return flag status
    System-->>User: Respond with operation result

πŸ‡ In a world of flags so bright,
The rabbit hops with pure delight.
With EnumSet, we can now play,
Managing bits in a clever way!
Hooray for changes, let’s all cheer,
For clearer code and less to fear! 🌟


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