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Support o>>, e>>, o+e>> to append output to an external file (#10764)

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# Description
Close: #10278

This pr introduces `o>>`, `e>>`, `o+e>>` to allow redirection to append
to a file.
Examples:
```nushell
echo abc o>> a.txt
echo abc o>> a.txt
cat asdf e>> a.txt
cat asdf e>> a.txt
cat asdf o+e>> a.txt
```

~~TODO:~~
~~1. currently internal commands with `o+e>` redirect to a variable is
broken: `let x = "a.txt"; echo abc o+e> $x`, not sure when it was
introduced...~~
~~2. redirect stdout and stderr with append mode doesn't supported yet:
`cat asdf o>>a.txt e>>b.ext`~~

~~For these 2 items, I'd like to fix them in different prs.~~
Already done in this pr
This commit is contained in:
WindSoilder
2023-11-27 21:52:39 +08:00
committed by GitHub
parent 1ff8c2d81d
commit 077d1c8125
13 changed files with 364 additions and 147 deletions
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5
crates/nu-parser/src/parse_keywords.rs
View File

@ -1846,11 +1846,12 @@ pub fn parse_module_block(
}
}
}
LiteElement::Redirection(_, _, command) => {
LiteElement::Redirection(_, _, command, _) => {
block.pipelines.push(garbage_pipeline(&command.parts))
}
LiteElement::SeparateRedirection {
out: (_, command), ..
out: (_, command, _),
..
} => block.pipelines.push(garbage_pipeline(&command.parts)),
LiteElement::SameTargetRedirection {
cmd: (_, command), ..