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Author SHA1 Message Date
Bahex
e7d2717424
feat(std-rfc): add iter module and recurse command (#15840) 
# Description
`recurse` command is similar to `jq`'s `recurse`/`..` command. Along
with values, it also returns their cell-paths relative to the "root"
(initial input)

By default it uses breadth-first traversal, collecting child items of
all available sibling items before starting to process those child
items. This means output is ordered in increasing depth.
With the `--depth-first` flag it uses a stack based recursive descend,
which results in output order identical to `jq`'s `recurse`.

It can be used in the following ways:
- `... | recurse`: Recursively traverses the input value, returns each
value it finds as a stream.
- `... | recurse foo.bar`: Only descend through the given cell-path.
- `... | recurse {|parent| ... }`: Produce child values with a closure.

```nushell
{
    "foo": {
        "egg": "X"
        "spam": "Y"
    }
    "bar": {
        "quox": ["A" "B"]
    }
}
| recurse
| update item { to nuon }

# => ╭───┬──────────────┬───────────────────────────────────────────────╮
# => │ # │     path     │                     item                      │
# => ├───┼──────────────┼───────────────────────────────────────────────┤
# => │ 0 │ $.           │ {foo: {egg: X, spam: Y}, bar: {quox: [A, B]}} │
# => │ 1 │ $.foo        │ {egg: X, spam: Y}                             │
# => │ 2 │ $.bar        │ {quox: [A, B]}                                │
# => │ 3 │ $.foo.egg    │ "X"                                           │
# => │ 4 │ $.foo.spam   │ "Y"                                           │
# => │ 5 │ $.bar.quox   │ [A, B]                                        │
# => │ 6 │ $.bar.quox.0 │ "A"                                           │
# => │ 7 │ $.bar.quox.1 │ "B"                                           │
# => ╰───┴──────────────┴───────────────────────────────────────────────╯


{"name": "/", "children": [
    {"name": "/bin", "children": [
        {"name": "/bin/ls", "children": []},
        {"name": "/bin/sh", "children": []}]},
    {"name": "/home", "children": [
        {"name": "/home/stephen", "children": [
            {"name": "/home/stephen/jq", "children": []}]}]}]}
| recurse children
| get item.name

# => ╭───┬──────────────────╮
# => │ 0 │ /                │
# => │ 1 │ /bin             │
# => │ 2 │ /home            │
# => │ 3 │ /bin/ls          │
# => │ 4 │ /bin/sh          │
# => │ 5 │ /home/stephen    │
# => │ 6 │ /home/stephen/jq │
# => ╰───┴──────────────────╯


{"name": "/", "children": [
    {"name": "/bin", "children": [
        {"name": "/bin/ls", "children": []},
        {"name": "/bin/sh", "children": []}]},
    {"name": "/home", "children": [
        {"name": "/home/stephen", "children": [
            {"name": "/home/stephen/jq", "children": []}]}]}]}
| recurse children --depth-first
| get item.name

# => ╭───┬──────────────────╮
# => │ 0 │ /                │
# => │ 1 │ /bin             │
# => │ 2 │ /bin/ls          │
# => │ 3 │ /bin/sh          │
# => │ 4 │ /home            │
# => │ 5 │ /home/stephen    │
# => │ 6 │ /home/stephen/jq │
# => ╰───┴──────────────────╯


2
| recurse { ({path: square item: ($in * $in)}) }
| take while { $in.item < 100 }

# => ╭───┬─────────────────┬──────╮
# => │ # │      path       │ item │
# => ├───┼─────────────────┼──────┤
# => │ 0 │ $.              │    2 │
# => │ 1 │ $.square        │    4 │
# => │ 2 │ $.square.square │   16 │
# => ╰───┴─────────────────┴──────╯
``` 

# User-Facing Changes
No changes other than the new command.

# Tests + Formatting
Added tests for examples. (As we can't run them directly as tests yet.)
- 🟢 `toolkit test stdlib`

# After Submitting
- Update relevant parts of
https://www.nushell.sh/cookbook/jq_v_nushell.html
- `$env.config | recurse | where ($it.item | describe -d).type not-in
[list, record, table]` can partially cover the use case of `config
flatten`, should we do something?

---------

Co-authored-by: Bahex <17417311+Bahex@users.noreply.github.com>
 2025-06-03 11:21:12 -04:00
Ville Vainio
88d421dcb6
std-rfc/kv: optimize kv get by only selecting one row from the stor db (#15792) 
Optimize std-rfc/kv, kv get to only read one row from the sqlite db.
 2025-05-22 21:14:31 -04:00
Tyarel8
5483519c7d
fix kv set examples (#15769) 
As talked in #15588, I have updated the examples of `kv set` so that it
correctly shows how to use the command with closures.
 2025-05-17 23:31:46 -04:00
Douglas
5fecf59f54
Revert "Fix kv set with a closure argument" (#15648) 
Reverts nushell/nushell#15588 (see comments there)
 2025-04-26 23:00:00 -04:00
Tyarel
6193679dfc
Fix kv set with a closure argument (#15588) 
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Fixes #15528 
# Description
Fixed `kv set` passing the pipeline input to the closure instead of the
value stored in that key.

# User-Facing Changes
Now `kv set` will pass the value in that key to the closure.

# Tests + Formatting


# After Submitting
 2025-04-22 22:30:38 +08:00
Douglas
49d86855ce
Fixes clip copy stripping control characters when de-ansifying (#15428) 
Fixes #15414 by changing the method used to de-ansi-fy the input. Control characters will now be kept when using `clip copy`, but ANSI escape codes will be removed (when not using `--ansi (-a)`)
 2025-03-28 19:15:17 -04:00
zc he
44b7cfd696
refactor: tree-sitter-nu friendly alternative expressions (#15301) 
# Description

Choose more tree-sitter-nu-friendly (if not better) expressions in nu
scripts.
The changes made in this PR all come from known issues of
`tree-sitter-nu`.

1. nested single/double quotes:
https://github.com/nushell/tree-sitter-nu/issues/125
2. module path of `use` command:
https://github.com/nushell/tree-sitter-nu/issues/165
3. where predicates of boolean column:
https://github.com/nushell/tree-sitter-nu/issues/177
4. `error make` keyword:
https://github.com/nushell/tree-sitter-nu/issues/179

Those issues are either hard to fix or "not planned" for syntactical
precision considerations ATM.

# User-Facing Changes

Should be none

# Tests + Formatting

# After Submitting
 2025-03-12 08:48:19 -05:00
Justin Ma
453e294883
Refactor kv commands: replace inline params in SQL queries (#15108) 
# Description

Update some comments and fix potential security issue:

SQL Injection in DELETE statements: The code constructs SQL queries by
interpolating the $key variable directly into the string. If a key
contains malicious input could lead to SQL injection. Need to use
parameterized queries or escaping.
 2025-02-13 23:23:59 -05:00
Bahex
f7d5162582
docs(std-rfc): use actual examples rather than doc comments (#15097) 
# Description
Update examples with attributes.

# User-Facing Changes
`std-rfc` commands now have examples.

# Tests + Formatting
N/A

# After Submitting
N/A
 2025-02-11 16:33:27 -06:00
Stefan Holderbach
18e3a5d40b
Fix match blocks in std-rfc/kv implementation (#15089) 
Fixes failure surfaced by merging
https://github.com/nushell/nushell/pull/15032
 2025-02-11 11:16:57 +01:00
Douglas
a7830ac1fd
Update README.md 
Fix link
 2025-02-10 09:06:09 -05:00
Douglas
00713c9339
Update README.md 
Fix Drawing-Board link/description
 2025-02-10 09:05:05 -05:00
Douglas
720813339f
Add std-rfc README (#15066) 
Copied the old README from `nu_scripts/stdlib-candidate/std-rfc` over to `nu-std/std-rfc` and
updated it with the latest info.
 2025-02-09 11:21:56 -05:00
Douglas
5b4dd775d4
Move std-rfc into Nushell (#15042) 
Move `std-rfc` into Nushell.  `use std-rfc/<submodule>` now works "out-of-the-box"
 2025-02-09 09:03:37 -05:00