Commit Graph

107 Commits

Author SHA1 Message Date
Leon
5c1606ed82
Add -n flag to sort (formerly only available on sort-by) (#7293)
# Description

* `-n`, `--natural` flag from `sort-by` is now on the plain `sort`.
* The `-i`, `-n` and `-r` flags now work with single record sorting
(formerly they didn't)

# User-Facing Changes

See above.

# 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.
2022-12-01 07:11:30 -06:00
JT
62e34b69b3
New commands: break, continue, return, and loop (#7230)
# Description

This adds `break`, `continue`, `return`, and `loop`.

* `break` - breaks out a loop
* `continue` - continues a loop at the next iteration
* `return` - early return from a function call
* `loop` - loop forever (until the loop hits a break)

Examples:
```
for i in 1..10 {
    if $i == 5 {
       continue
    } 
    print $i
}
```

```
for i in 1..10 {
    if $i == 5 {
        break
    } 
    print $i
}
```

```
def foo [x] {
    if true {
        return 2
    }
    $x
}
foo 100
```

```
loop { print "hello, forever" }
```

```
[1, 2, 3, 4, 5] | each {|x| 
    if $x > 3 { break }
    $x
}
```

# User-Facing Changes

Adds the above commands.

# 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.
2022-11-25 09:39:16 +13:00
JT
04612809ab
Add try/catch functionality (#7221)
# Description

This adds `try` (with an optional `catch` piece). Much like other
languages, `try` will try to run a block. If the block fails to run
successfully, the optional `catch` block will run if it is available.

# User-Facing Changes

This adds the `try` command.

# 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.
2022-11-24 17:52:11 +13:00
Reilly Wood
efdfeac55e
Feature cleanup (#7182)
Following up on #7180 with some feature cleanup:

- Move the `database` feature from `plugin` to `default`
- Rename the `database` feature to `sqlite`
- Remove `--features=extra` from a lot of scripts etc. 
- No need to specify this, the `extra` feature is now the same as the
default feature set
- Remove the now-redundant 2nd Ubuntu test run
2022-11-22 16:58:11 -08:00
JT
74a73f9838
Stdout/Stderr redirection (#7185)
This adds new pipeline connectors called out> and err> which redirect either stdout or stderr to a file. You can also use out+err> (or err+out>) to redirect both streams into a file.
2022-11-23 07:26:13 +13:00
raccmonteiro
ced5e1065f
new command url parse (#6854) and url subcommands tests (#7124)
*code refactor from PR tips & clippy fixes

*added username, password, and fragment

*commands `url host`, `url scheme`, `url query`, and `url path` removed

*tests refactoring - avoid formatted output
2022-11-19 10:14:29 -08:00
JT
69b089845c
Add support for while loops (#7101) 2022-11-12 07:21:45 +13:00
JT
13515c5eb0
Limited mutable variables (#7089)
This adds support for (limited) mutable variables. Mutable variables are created with mut much the same way immutable variables are made with let.

Mutable variables allow mutation via the assignment operator (=).

❯ mut x = 100
❯ $x = 200
❯ print $x
200

Mutable variables are limited in that they're only tended to be used in the local code block. Trying to capture a local variable will result in an error:

❯ mut x = 123; {|| $x }
Error: nu::parser::expected_keyword (link)

  × Capture of mutable variable.

The intent of this limitation is to reduce some of the issues with mutable variables in general: namely they make code that's harder to reason about. By reducing the scope that a mutable variable can be used it, we can help create local reasoning about them.

Mutation can occur with fields as well, as in this case:

❯ mut y = {abc: 123}
❯ $y.abc = 456
❯ $y

On a historical note: mutable variables are something that we resisted for quite a long time, leaning as much as we could on the functional style of pipelines and dataflow. That said, we've watched folks struggle to work with reduce as an approximation for patterns that would be trivial to express with local mutation. With that in mind, we're leaning towards the happy path.
2022-11-11 19:51:08 +13:00
Reilly Wood
24d72ca43c
Simplify seq char (#7054)
* Simplify `seq char`

* Fix input/output tests
2022-11-09 17:06:47 -08:00
Kyle Anderson
1572808adb
Filter out empty glob patterns to "glob" command (#6707)
* Filter out empty glob patterns

An empty argument to the "glob" command will now produce an empty result.
Working towards nushell/nushell#6653.

* Run `cargo fmt --all`

Just autoformatted the repo so that CI passes and we have a consistent code
format across modules.

* Treat empty glob argument as error

The glob command will now report an empty string argument as an error instead
of silently ignoring it.

See https://github.com/nushell/nushell/pull/6707#discussion_r993345013.

* Add tests for glob command

Two small tests for the glob command, one to check that the empty string errors
it, and another to sanity check the '*' glob, have been added.

* Rename glob sanity check star test

Co-authored-by: Kyle Anderson <kyle.anderson@uwaterloo.ca>
2022-10-15 18:00:38 +02:00
Maxim Zhiburt
5921c19bc0
WIP/ Checkout to new tabled (#6286)
* nu-table/ Use latest tabled

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table/ Fix first column alignment

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Fix cargo clippy

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Fix color issue

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Fix footer row

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Bump tabled

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Bump tabled

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Bump tabled

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Update

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table/ Update

* Use latest tabled

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Add optional -e, -c argument to `table` command for different view

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix clippy

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix clippy

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Update

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix cargo clippy

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix tests

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* nu-table: Add footer into -e/c mode

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Publish new expand mode

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Add width ctrl for Expand mode

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Refactorings

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Refactorings

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Add tests

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Add tests

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Merge with main

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix clippy

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix tests

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Fix tests

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Bump tabled

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* Add record expand and fix empty list issue

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>

* refactoring

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
2022-10-03 11:40:16 -05:00
JT
c52d45cb97
Move from source to source-env (#6277)
* start working on source-env

* WIP

* Get most tests working, still one to go

* Fix file-relative paths; Report parser error

* Fix merge conflicts; Restore source as deprecated

* Tests: Use source-env; Remove redundant tests

* Fmt

* Respect hidden env vars

* Fix file-relative eval for source-env

* Add file-relative eval to "overlay use"

* Use FILE_PWD only in source-env and "overlay use"

* Ignore new tests for now

This will be another issue

* Throw an error if setting FILE_PWD manually

* Fix source-related test failures

* Fix nu-check to respect FILE_PWD

* Fix corrupted spans in source-env shell errors

* Fix up some references to old source

* Remove deprecation message

* Re-introduce deleted tests

Co-authored-by: kubouch <kubouch@gmail.com>
2022-09-01 08:32:56 +12:00
nibon7
529c98085a
Return error when kill didn't terminate successfully (#6354)
* Return error when `kill` didn't terminate successfully

Signed-off-by: nibon7 <nibon7@163.com>

* add test

Signed-off-by: nibon7 <nibon7@163.com>

Signed-off-by: nibon7 <nibon7@163.com>
2022-08-18 11:58:51 -05:00
nibon7
2f0cb044a5
Refactor shell listing related code (#6262)
* Refactor shell listing related code

Signed-off-by: nibon7 <nibon7@163.com>

* add test

Signed-off-by: nibon7 <nibon7@163.com>
2022-08-08 06:31:24 -05:00
nibon7
63e220a763
Refactor shell switching related code (#6258)
* Refactor shell switching related code

Signed-off-by: nibon7 <nibon7@163.com>

* add tests

Signed-off-by: nibon7 <nibon7@163.com>

* fix tests

Signed-off-by: nibon7 <nibon7@163.com>
2022-08-07 13:30:40 -05:00
Kangaxx-0
a217bc0715
Fix issue 6223 (#6241)
* Fix6223

* clippy fix

Co-authored-by: Frank <v-frankz@microsoft.com>
2022-08-06 07:09:14 -05:00
pwygab
233afebdf0
allow -h flags for export subcommands (#6189)
* allow `-h` flags for `export` subcommands

* remove unnecessary check

* add tests

* fmt
2022-08-02 10:26:16 -05:00
pwygab
a54f9719e5
add unspanned flag to error make, add tests (#6017)
* add `unspanned` flag to error make, add tests

* fmt
2022-07-12 06:03:50 -05:00
WindSoilder
84caf8859f
add -e flag to print, to print the value to stderr (#5935)
* Refactor: make stdout write all and flush as generic function

* support print to stderr
2022-07-02 09:54:49 -05:00
pwygab
a0db4ce747
Better error handling using do (#5890)
* adds `capture-errors` flag for `do`

* adds `get-type` core command to get type

* fmt

* add tests in example

* fmt

* fix tests

* manually revert previous changes related to `get-type`

* adds method to check for error name using `into string`

* fix clippy
2022-06-29 20:01:34 -05:00
Kangaxx-0
dc9d939c83
Introduce new command - nu check (#5864)
* nu check command - 1

* Support stream

* Polish code and fix corner case
2022-06-26 06:53:06 -05:00
pwygab
1345f97202
Errors when let in, let env and similar commands are passed. (#5866)
* throw `let nu/env/nothing/in` error in parsing

* add tests and fmt

* fix clippy

* suggestions

* fmt

* `lvalue.span` instead of `spans[1]`

* clippy

* fmt
2022-06-25 00:55:25 +03:00
pwygab
f43a65d7a7
Prevents duplicate fields in transpose -r (#5840) 2022-06-22 19:19:06 -05:00
WindSoilder
82ae06865c
Port command (#5849)
* implement port command

* better comment

* fmt code

* fix example description

* fix usage

* fix tests
2022-06-21 23:27:58 -04:00
WindSoilder
ef322a24c5
fix date format (#5619) 2022-05-23 09:59:34 -07:00
Fernando Herrera
e94d13da1b
Database commands (#5307)
* database commands

* db commands

* filesystem opens sqlite file

* clippy error

* corrected error in ci file

* removes matrix flag from ci

* flax matrix for clippy

* add conditional compile for tests

* add conditional compile for tests

* correct order of command

* correct error msg

* correct typo
2022-04-24 10:29:21 +01:00
Reilly Wood
b501db673a
SQLite overhaul: custom value, query db command (#5247)
Clean up query errors
2022-04-20 16:58:21 +12:00
JT
4f974efeba
Move 'keep' to 'take' (#5123) 2022-04-08 08:49:28 +12:00
Reilly Wood
79182db587
Clean up which/which-support Cargo feature (#5019)
* Rename "which" feature to "which-support"

* Ignore currently broken environment tests
2022-03-29 06:10:43 -05:00
JT
d0cbb2d12c
Allow expanding aliases before keywords, improve hiding (#4858)
* Allow aliasing source

* Add test

* improve hiding

* Finish adding tests

* fix test
2022-03-18 11:35:50 +13:00
JT
0986eefb64
Add insert and update back (#4864) 2022-03-18 06:55:02 +13:00
JT
54d9fff4f2
Revert "Alias to keywords (eg source) (#4835)" (#4841)
This reverts commit c023d4111a.
2022-03-13 13:38:16 -07:00
JT
c023d4111a
Alias to keywords (eg source) (#4835)
* Allow aliasing source

* Add test
2022-03-13 11:30:37 -07:00
JT
299fea8538
Fix external extra (#4777)
* Fix empty table from externals

* Fix empty table from externals
2022-03-07 20:17:33 -05:00
Jakub Žádník
bccce0ab46
Use overlay ID for module import lookup (#4514)
* Add id to import pattern

* Finish testing importing in a block
2022-02-17 20:58:24 -05:00
Jakub Žádník
94a0e3060a
Update CI (#4445)
* Add different features combinations

* Specify styles manually

* Fix args

* Fix typo

* Let other CI jobs finish if one fails

* Fix unused symbols without plugin feature

* Put "which" tests behind "which" feature

* Add Python virtualenv job

* Oops forgot git command

* Install Nushell in virtualenv tests

* Add names to steps; Test v.env in separate step

* cd into virtualenv

* Do not run on Python 2.7

* Build Nushell after formatting and clippy checks
2022-02-12 22:48:17 +02:00
JT
5a1d81221f
Move 'nth' into 'select' (#4385) 2022-02-09 09:59:40 -05:00
panicbit
cf20eed7bc
Support records in reject command (#4373)
* support records in reject command

* add reject command tests
2022-02-08 15:57:46 -05:00
JT
d70d91e559 Remove old nushell/merge engine-q 2022-02-07 14:54:06 -05:00
Fernando Herrera
fdce6c49ab engine-q merge 2022-02-07 19:11:34 +00:00
Michael Angerman
c2f6dfa75c
add nth tests to mod.rs (#934) 2022-02-04 12:08:25 -08:00
JT
a008f1aa80
Command tests (#922)
* WIP command tests

* Finish marking todo tests

* update

* update

* Windows cd test ignoring
2022-02-03 21:01:45 -05:00
Lily Mara
d90420ac4c
Add subcommand into filesize (#3987)
* Add subcommand `into filesize`

It's currently not possible to convert a number or a string containing a number
into a filesize. The only way to create an instance of filesize type today is
with a literal in nushell syntax. This commit adds the `into filesize`
subcommand so that file sizes can be created from the outputs of programs
producing numbers or strings, like standard unix tools.

There is a limitation with this - it doesn't currently parse values like `10 MB`
or `10 MiB`, it can only look at the number itself. If the desire is there, more
flexible parsing can be added.

* fixup! Add subcommand `into filesize`

* fixup! Add subcommand `into filesize`
2021-09-02 18:19:54 -05:00
Darren Schroeder
17ef531905
introducing the find command (#3971)
* introducing the `find` command

* added tests

* merged main to accomodate "rest" changes

* test fix
2021-08-27 20:48:41 +12:00
Jakub Žádník
e11b400a75
Allow source to accept paths with emojis (#3939)
* Allow sourcing paths with emojis

* Add source command tests for emoji paths

* Fmt

* Disable source tests on Windows with illegal paths

* Test sourcing also ASCII and single-quoted paths
2021-08-19 19:06:18 +12:00
Andrés N. Robalino
b873fa7a5f
The zip command. (#3919)
We introduce it here and allow it to work with regular lists (tables with no columns) as well as symmetric tables. Say we have two lists and wish to zip them, like so:

```
[0 2 4 6 8] | zip {
  [1 3 5 7 9]
} | flatten

───┬───
 0 │ 0
 1 │ 1
 2 │ 2
 3 │ 3
 4 │ 4
 5 │ 5
 6 │ 6
 7 │ 7
 8 │ 8
 9 │ 9
───┴───
```

In the case for two tables instead:

```
[[symbol]; ['('] ['['] ['{']] | zip {
  [[symbol]; [')'] [']'] ['}']]
} | each {
  get symbol | $'($in.0)nushell($in.1)'
}

───┬───────────
 0 │ (nushell)
 1 │ [nushell]
 2 │ {nushell}
───┴───────────
```
2021-08-14 23:36:08 -05:00
Jakub Žádník
2e24de7f47
Support other variables than PATH in pathvar (2nd attempt) (#3828)
* Fix swapped PATH env var separators

* Support pathvar to manipulate other vars than PATH

* Add tests for pathvar and its subcommands

* Adjust pathvar tests to comply with env quirks

* Make pathvar tests work on non-Windows as well

* Compact the comments in pathvar tests

* Fix last failing test

Co-authored-by: Jakub Žádník <jakub.zadnik@tuni.fi>
2021-07-24 11:44:36 -05:00
Darren Schroeder
0f9e55dac6
Revert "Support other variables than PATH in pathvar (#3791)" (#3827)
This reverts commit f9f39c0a1c.
2021-07-23 09:03:28 -05:00
Jakub Žádník
f9f39c0a1c
Support other variables than PATH in pathvar (#3791)
* Fix swapped PATH env var separators

* Support pathvar to manipulate other vars than PATH

* Add tests for pathvar and its subcommands

* Fix PATH env name for Windows

Seems like Windows uses PATH as well.

Co-authored-by: Jakub Žádník <jakub.zadnik@tuni.fi>
2021-07-23 19:11:56 +12:00
Leonhard Kipp
ac070ae942
Refactor/config commands (#3265)
* Use ctx.configs in all config commands

* Remove all setting/accessing of  vars.("config-path")

* Add tests

* Add comment

* Reload cfg on remove

* Hypocratic ws change

* Use history_path in hist_or_default

* Make clippy happy

* Fix rebase stuff

* Fix clippy lint
2021-04-09 18:03:12 +12:00
Andrés N. Robalino
e278ca61d1
commands: any? all? (#3252)
* commands: any? all?

We can check if `any` (or `all`) rows of tables match predicates.

Small `all?` example: Given the following table with `services` running:

```
> echo [[status]; [UP] [UP]]
───┬────────
 # │ status
───┼────────
 0 │ UP
 1 │ UP
───┴────────
```

We can ask if all services are UP, like so:

```
> echo [[status]; [UP] [UP]] | all? status == UP
true
```

* Fix any? signature.
2021-04-03 13:40:54 -05:00
Andrés N. Robalino
d2213d18fa
Playground infraestructure (tests, etc) additions. (#3179)
* Playground infraestructure (tests, etc) additions.

A few things to note:

* Nu can be started with a custom configuration file (`nu --config-file /path/to/sample_config.toml`). Useful for mocking the configuration on test runs.
* When given a custom configuration file Nu will save any changes to the file supplied appropiately.
* The `$nu.config-path` variable either shows the default configuration file (or the custom one, if given)
* We can now run end to end tests with finer grained control (currently, since this is baseline work, standard out) This will allow to check things like exit status, assert the contents with a format, etc)

* Remove (for another PR)
2021-03-15 02:26:30 -05:00
John-Goff
c13fe83784
Rename count to length (#3166)
* update docs to refer to length instead of count

* rename count to length

* change all occurrences of 'count' to 'length' in tests

* format length command
2021-03-14 10:46:40 +13:00
Michael Angerman
6b2327f231
help generate_docs | flatten crashes nushell (#3099)
* fix case where parent_name was {nu, term} and possibly others in the future by doing an extra test first to see if if the *parent_name key actually exists in cmap

* update with help generate_docs testing
2021-02-27 09:05:22 +13:00
Andrés N. Robalino
7a77910720
Table content rolling. (#3097)
There are many use cases. Here we introduce the following:

- The rows can be rolled `... | roll` (up) or `... | roll down`
- Columns can be rolled too (the default is on the `left`, you can pass `... | roll column --opposite` to roll in the other direction)
- You can `roll` the cells of a table and keeping the header names in the same order (`... | roll column --cells-only`)
- Above examples can also be passed (Ex. `... | roll down 3`) a number to tell how many places to roll.

Basic working example with rolling columns:

```
> echo '00000100'
| split chars
| each { str to-int }
| rotate counter-clockwise _
| reject _
| rename bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8

───┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────
 # │ bit1 │ bit2 │ bit3 │ bit4 │ bit5 │ bit6 │ bit7 │ bit8
───┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────
 0 │    0 │    0 │    0 │    0 │    0 │    1 │    0 │    0
───┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────
```

We want to "shift" three bits to the left of the bitstring (four in decimal), let's try it:

```
> echo '00000100'
| split chars
| each { str to-int }
| rotate counter-clockwise _
| reject _
| rename bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8
| roll column 3

───┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────
 # │ bit4 │ bit5 │ bit6 │ bit7 │ bit8 │ bit1 │ bit2 │ bit3
───┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────
 0 │    0 │    0 │    1 │    0 │    0 │    0 │    0 │    0
───┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────
```

The tables was rolled correctly (32 in decimal, for above bitstring). However, the *last three header names* look confusing.
We can roll the cell contents only to fix it.

```
> echo '00000100'
| split chars
| each { str to-int }
| rotate counter-clockwise _
| reject _
| rename bit1 bit2 bit3 bit4 bit5 bit6 bit7 bit8
| roll column 3 --cells-only

───┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────
 # │ bit1 │ bit2 │ bit3 │ bit4 │ bit5 │ bit6 │ bit7 │ bit8
───┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────
 0 │    0 │    0 │    1 │    0 │    0 │    0 │    0 │    0
───┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────
```

There we go. Let's compute it's decimal value now (should be 32)

```
> echo '00000100'
| split chars
| each { str to-int }
| rotate counter-clockwise _
| reject _
| roll column 3 --cells-only
| pivot bit --ignore-titles
| get bit
| reverse
| each --numbered { = $it.item * (2 ** $it.index) }
| math sum

32
```
2021-02-23 13:29:07 -05:00
Andrés N. Robalino
803826cdcd
90 degree table rotations (clockwise and counter-clockwise) (#3086)
Also for 180 degree is expected. Rotation is not exactly like pivoting (transposing)
for instance, given the following table:

```
> echo [[col1, col2, col3]; [cell1, cell2, cell3] [cell4, cell5, cell6]]
───┬───────┬───────┬───────
 # │ col1  │ col2  │ col3
───┼───────┼───────┼───────
 0 │ cell1 │ cell2 │ cell3
 1 │ cell4 │ cell5 │ cell6
───┴───────┴───────┴───────
```

To rotate it counter clockwise by 90 degrees, we can resort to first transposing (`pivot`)
them adding a new column (preferably integers), sort by that column from highest to lowest,
then remove the column and we have a counter clockwise rotation.

```
> echo [[col1, col2, col3]; [cell1, cell2, cell3] [cell4, cell5, cell6]] | pivot | each --numbered { = $it.item | insert idx $it.index } | sort-by idx | reverse | reject idx
───┬─────────┬─────────┬─────────
 # │ Column0 │ Column1 │ Column2
───┼─────────┼─────────┼─────────
 0 │ col3    │ cell3   │ cell6
 1 │ col2    │ cell2   │ cell5
 2 │ col1    │ cell1   │ cell4
───┴─────────┴─────────┴─────────
```

Which we can get easily, in this case, by doing:

```
> echo [[col1, col2, cel3]; [cell1, cell2, cell3] [cell4, cell5, cell6]] | rotate counter-clockwise
───┬─────────┬─────────┬─────────
 # │ Column0 │ Column1 │ Column2
───┼─────────┼─────────┼─────────
 0 │ col3    │ cell3   │ cell6
 1 │ col2    │ cell2   │ cell5
 2 │ col1    │ cell1   │ cell4
───┴─────────┴─────────┴─────────
```

There are also many powerful use cases with rotation, it makes a breeze creating tables with many columns, say:

```
echo 0..12 | rotate counter-clockwise | reject Column0
───┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬──────────┬──────────┬──────────┬──────────
 # │ Column1 │ Column2 │ Column3 │ Column4 │ Column5 │ Column6 │ Column7 │ Column8 │ Column9 │ Column10 │ Column11 │ Column12 │ Column13
───┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼──────────┼──────────┼──────────┼──────────
 0 │       0 │       1 │       2 │       3 │       4 │       5 │       6 │       7 │       8 │        9 │       10 │       11 │       12
───┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴─────────┴──────────┴──────────┴──────────┴──────────
```
2021-02-22 06:56:34 -05:00
Michael Angerman
d06f457b2a
nu-cli refactor moving commands into their own crate nu-command (#2910)
* move commands, futures.rs, script.rs, utils

* move over maybe_print_errors

* add nu_command crate references to nu_cli

* in commands.rs open up to pub mod from pub(crate)

* nu-cli, nu-command, and nu tests are now passing

* cargo fmt

* clean up nu-cli/src/prelude.rs

* code cleanup

* for some reason lex.rs was not formatted, may be causing my error

* remove mod completion from lib.rs which was not being used along with quickcheck macros

* add in allow unused imports

* comment out one failing external test; comment out one failing internal test

* revert commenting out failing tests; something else might be going on; someone with a windows machine should check and see what is going on with these failing windows tests

* Update Cargo.toml

Extend the optional features to nu-command

Co-authored-by: Jonathan Turner <jonathandturner@users.noreply.github.com>
2021-01-12 17:59:53 +13:00