WindSoilder
|
4f57c5d56e
|
Fix multi-line redirection inside a block (#7808)
# Description
Fixes: #7786
The issue is because the lite block is wrong while converting from lex
tokens
# What happened internally?
Take the following as example:
```
❯ def foobar [] {
'hello' out> /tmp/output.1
'world' out> /tmp/output.2
}
```
## Before:
```
LiteBlock { block: [
LitePipeline { commands: [
Command(None, LiteCommand { comments: [], parts: [Span { start: 40900, end:40907 }] }),
Redirection(Span { start: 40908, end: 40912 }, Stdout, LiteCommand { comments: [], parts: [Span { start: 40913, end: 40926 }] })]
},
LitePipeline { commands: [
Redirection(Span { start: 40908, end: 40912 }, Stdout, LiteCommand { comments: [], parts: [Span { start: 40929, end: 40936 }] }), // this is wrong, should be command.
Redirection(Span { start: 40937, end: 40941 }, Stdout, LiteCommand { comments: [], parts: [Span { start: 40942, end: 40955 }] })]
}] }
```
## After:
```
LiteBlock { block: [
LitePipeline { commands: [
Command(None, LiteCommand { comments: [], parts: [Span { start: 40824, end: 40831 }] }),
Redirection(Span { start: 40832, end: 40836 }, Stdout, LiteCommand { comments: [], parts: [Span { start: 40837, end: 40850 }] })]
},
LitePipeline { commands: [
Command(None, LiteCommand { comments: [], parts: [Span { start: 40854, end: 40861 }] }),
Redirection(Span { start: 40862, end: 40866 }, Stdout, LiteCommand { comments: [], parts: [Span { start: 40867, end: 40880 }] })]
}
] }
```
# Tests + Formatting
Don't forget to add tests that cover your changes.
Make sure you've run and fixed any issues with these commands:
- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
# After Submitting
If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
|
2023-01-23 06:32:56 +13:00 |
|
WindSoilder
|
8aa2632661
|
Support redirect err and out to different streams (#7685)
# Description
Closes: #7364
# User-Facing Changes
Given the following shell script:
```bash
x=$(printf '=%.0s' {1..100})
echo $x
echo $x 1>&2
```
It supports the following command:
```
bash test.sh out> out.txt err> err.txt
```
Then both `out.txt` and `err.txt` will contain `=`(100 times)
## About the change
The core idea is that when doing lite-parsing, introduce a new variant
`LiteElement::SeparateRedirection` if we meet two Redirection
token(which is generated by `lex` function),
During converting from lite block to block,
`LiteElement::SeparateRedirection` will be converted to
`PipelineElement::SeparateRedirection`.
Then in the block eval process, if we get
`PipelineElement::SeparateRedirection`, we invoke `save` command with
`--stderr` arguments to acthive our behavior.
## What happened internally?
Take the following command as example:
```
^ls out> out.txt err> err.txt
```
lex parsing result(`Tokens`) are not changed, but `LiteBlock` and
`Block` is changed after this pr.
### LiteBlock before
```rust
LiteBlock {
block: [
LitePipeline { commands: [
Command(None, LiteCommand { comments: [], parts: [Span { start: 39041, end: 39044 }] }),
// actually the span of first Redirection is wrong too..
Redirection(Span { start: 39058, end: 39062 }, Stdout, LiteCommand { comments: [], parts: [Span { start: 39050, end: 39057 }] }),
Redirection(Span { start: 39058, end: 39062 }, Stderr, LiteCommand { comments: [], parts: [Span { start: 39063, end: 39070 }] })
]
}]
}
```
### LiteBlock after
```rust
LiteBlock {
block: [
LitePipeline { commands: [
Command(
None,
LiteCommand { comments: [], parts: [Span { start: 38525, end: 38528 }] }),
// new one! two Redirection merged into one SeparateRedirection.
SeparateRedirection {
out: (Span { start: 38529, end: 38533 }, LiteCommand { comments: [], parts: [Span { start: 38534, end: 38541 }] }),
err: (Span { start: 38542, end: 38546 }, LiteCommand { comments: [], parts: [Span { start: 38547, end: 38554 }] })
}
]
}]
}
```
### Block before
```rust
Pipeline {
elements: [
Expression(None, Expression {
expr: ExternalCall(Expression { expr: String("ls"), span: Span { start: 39042, end: 39044 }, ty: String, custom_completion: None }, [], false),
span: Span { start: 39041, end: 39044 },
ty: Any, custom_completion: None
}),
Redirection(Span { start: 39058, end: 39062 }, Stdout, Expression { expr: String("out.txt"), span: Span { start: 39050, end: 39057 }, ty: String, custom_completion: None }),
Redirection(Span { start: 39058, end: 39062 }, Stderr, Expression { expr: String("err.txt"), span: Span { start: 39063, end: 39070 }, ty: String, custom_completion: None })] }
```
### Block after
```rust
Pipeline {
elements: [
Expression(None, Expression {
expr: ExternalCall(Expression { expr: String("ls"), span: Span { start: 38526, end: 38528 }, ty: String, custom_completion: None }, [], false),
span: Span { start: 38525, end: 38528 },
ty: Any,
custom_completion: None
}),
// new one! SeparateRedirection
SeparateRedirection {
out: (Span { start: 38529, end: 38533 }, Expression { expr: String("out.txt"), span: Span { start: 38534, end: 38541 }, ty: String, custom_completion: None }),
err: (Span { start: 38542, end: 38546 }, Expression { expr: String("err.txt"), span: Span { start: 38547, end: 38554 }, ty: String, custom_completion: None })
}
]
}
```
# Tests + Formatting
Don't forget to add tests that cover your changes.
Make sure you've run and fixed any issues with these commands:
- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass
# After Submitting
If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
|
2023-01-12 10:22:30 +01:00 |
|
