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# Description
Add `metadata access`, which allows accessing/inspecting the metadata of
a stream in a closure.
```nu
ls | metadata access {|meta|
...
}
```
- The metadata is provided as an argument to the closure, identical to
the record obtained with `metadata` command.
- `metadata access` passes its input stream into the closure as it is.
- Within the closure, both the metadata and the stream are available.
The closure may modify, collect or pass the stream as it is.
# Motivation
- Without this command, nu code can't act on metadata without losing the
stream, use cases requiring both the stream and metadata must be
implemented either as a built-in or a plugin.
- This command allows users to enhance presentation of data, similar to
`table` coloring the output of `ls`.
34 lines
677 B
Rust
34 lines
677 B
Rust
mod ast;
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mod debug_;
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mod explain;
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mod info;
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mod inspect;
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mod inspect_table;
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mod metadata;
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mod metadata_access;
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mod metadata_set;
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mod profile;
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mod timeit;
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mod view;
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mod view_files;
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mod view_ir;
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mod view_source;
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mod view_span;
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pub use ast::Ast;
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pub use debug_::Debug;
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pub use explain::Explain;
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pub use info::DebugInfo;
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pub use inspect::Inspect;
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pub use inspect_table::build_table;
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pub use metadata::Metadata;
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pub use metadata_access::MetadataAccess;
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pub use metadata_set::MetadataSet;
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pub use profile::DebugProfile;
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pub use timeit::TimeIt;
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pub use view::View;
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pub use view_files::ViewFiles;
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pub use view_ir::ViewIr;
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pub use view_source::ViewSource;
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pub use view_span::ViewSpan;
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