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rgwood
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Nov 23, 2022
# Description BEFORE: ``` 〉ls | size Error: nu::shell::pipeline_mismatch (link) × Pipeline mismatch. ╭─[entry #22:1:1] 1 │ ls | size · ──┬─ · │╰── value originates from here · ╰── expected: string ╰──── 〉ls | sort-by SIZE Error: nu:🐚:column_not_found (link) × Cannot find column ╭─[entry #17:1:1] 1 │ ls | sort-by SIZE · ───┬─── · │╰── value originates here · ╰── cannot find column ╰──── 〉[4kb] | path join 'b' Error: nu:🐚:pipeline_mismatch (link) × Pipeline mismatch. ╭─[entry #6:1:1] 1 │ [4kb] | path join 'b' · ──┬── · │╰── value originates from here · ╰── expected: string or record ╰──── ``` AFTER: ``` 〉ls | size Error: nu:🐚:pipeline_mismatch (link) × Pipeline mismatch. ╭─[entry #1:1:1] 1 │ ls | size · ─┬ ──┬─ · │ ╰── expected: string · ╰── value originates from here ╰──── 〉ls | get 0 | sort-by SIZE Error: nu:🐚:column_not_found (link) × Cannot find column ╭─[entry #2:1:1] 1 │ ls | get 0 | sort-by SIZE · ─┬ ───┬─── · │ ╰── cannot find column 'SIZE' · ╰── value originates here ╰──── 〉[4kb] | path join 'b' Error: nu:🐚:pipeline_mismatch (link) × Pipeline mismatch. ╭─[entry #1:1:1] 1 │ [4kb] | path join 'b' · ──┬── ────┬──── · │ ╰── expected: string or record · ╰── value originates from here ╰──── ``` (Hey, anyone noticed that there's TWO wordings of "value originates from here" in this codebase………?) # 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 --features=extra -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace --features=extra` 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.
rgwood
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Feb 14, 2023
# Description Added a few syntax errors in ints and strings, changed parser to stop and show that error rather than continue trying to parse those tokens as some other shape. However, I don't see how to push this direction much further, and most of the classic confusing errors can't be changed. Flagged as WIP for the moment, but passes all checks and works better than current release: 1. I have yet to figure out how to make these errors refer back to the book, as I see some other errors do. 2. How to give syntax error when malformed int is first token in line? Currently parsed as external command, user gets confusing error message. 3. Would like to be more strict with *decimal* int literals (lacking, e.g, `0x' prefix). Need to tinker more with the order of parse shape calls, currently, float is tried after int, so '1.4' has to be passed. _(Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience.)_ ```bash 〉"\z" Error: ╭─[entry #3:1:1] 1 │ "\z" · ─┬─ · ╰── Syntax error in string, unrecognized character after escape '\'. ╰──── ``` Canonic presentation of a syntax error. ```bash 〉" \u{01ffbogus}" Error: × Invalid syntax ╭─[entry #2:1:1] 1 │ " \u{01ffbogus}" · ───────┬────── · ╰── Syntax error in string, expecting 1 to 6 hex digits in unicode escape '\u{X...}', max value 10FFFF. ╰──── ``` Malformed unicode escape in string, flagged as error. String parse can be opinionated, it's the last shape tried. ```bash 〉0x22bogus Error: nu:🐚:external_command (link) × External command failed ╭─[entry #4:1:1] 1 │ 0x22bogus · ────┬──── · ╰── executable was not found ╰──── help: No such file or directory (os error 2) ``` A *correct* number in first token would be evaluated, but an *incorrect* one is treated as external command? Confusing to users. ```bash 〉0 + 0x22bogus Error: × Invalid syntax ╭─[entry #5:1:1] 1 │ 0 + 0x22bogus · ────┬──── · ╰── Syntax error in int, invalid digits in radix 16 int. ╰──── ``` Can give syntax error if token is unambiguously int literal. e.g has 0b or 0x prefix, could not be a float. ```bash 〉0 + 098bogus Error: nu::parser::unsupported_operation (link) × Types mismatched for operation. ╭─[entry #6:1:1] 1 │ 0 + 098bogus · ┬ ┬ ────┬─── · │ │ ╰── string · │ ╰── doesn't support these values. · ╰── int ╰──── help: Change int or string to be the right types and try again. ``` But *decimal* literal (no prefix) can't be too strict. Parser is going to try float later. So '1.4' must be passed. # User-Facing Changes First and foremost, more specific error messages for typos in string and int literals. Probably improves interactive user experience. But a script that was causing and then checking for specific error might notice a different error message. _(List of all changes that impact the user experience here. This helps us keep track of breaking changes.)_ # Tests + Formatting Added (positive and negative unit tests in `cargo test -p nu-parser`. Didn't add integration tests. Make sure you've run and fixed any issues with these commands: - [x] `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - [x] `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - [x] `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. --------- Co-authored-by: Stefan Holderbach <[email protected]>
rgwood
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Aug 7, 2023
# Description This PR updates the `char` command to allow `Table` output due to the `--list` parameter. ### Before ```nushell char --list | transpose Error: nu::parser::input_type_mismatch × Command does not support string input. ╭─[entry #6:1:1] 1 │ char --list | transpose · ────┬──── · ╰── command doesn't support string input ╰──── ``` ### After ```nushell ❯ char --list | transpose ╭───┬───────────┬─────────┬─────────┬─────────┬───────────┬─────────┬─────────────┬─────────┬─────────┬─────────┬──────────┬──────────┬──────────┬────────────┬──────────┬─────────────┬──────────┬────────────┬──────────┬──────────┬─────╮ │ # │ column0 │ column1 │ column2 │ column3 │ column4 │ column5 │ column6 │ column7 │ column8 │ column9 │ column10 │ column11 │ column12 │ column13 │ column14 │ column15 │ column16 │ column17 │ column18 │ column19 │ ... │ ├───┼───────────┼─────────┼─────────┼─────────┼───────────┼─────────┼─────────────┼─────────┼─────────┼─────────┼──────────┼──────────┼──────────┼────────────┼──────────┼─────────────┼──────────┼────────────┼──────────┼──────────┼─────┤ │ 0 │ name │ newline │ enter │ nl │ line_feed │ lf │ carriage_re │ cr │ crlf │ tab │ sp │ space │ pipe │ left_brace │ lbrace │ right_brace │ rbrace │ left_paren │ lp │ lparen │ ... │ │ │ │ │ │ │ │ │ turn │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 1 │ character │ │ │ │ │ │ │ │ │ │ │ │ | │ { │ { │ } │ } │ ( │ ( │ ( │ ... │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 2 │ unicode │ a │ a │ a │ a │ a │ d │ d │ d a │ 9 │ 20 │ 20 │ 7c │ 7b │ 7b │ 7d │ 7d │ 28 │ 28 │ 28 │ ... │ ╰───┴───────────┴─────────┴─────────┴─────────┴───────────┴─────────┴─────────────┴─────────┴─────────┴─────────┴──────────┴──────────┴──────────┴────────────┴──────────┴─────────────┴──────────┴────────────┴──────────┴──────────┴─────╯ ``` # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
rgwood
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Oct 1, 2023
should close nushell#10549 # Description this PR is twofold - uses `to nuon --raw` in the error messages to make sure nushell#10549 is solved and makes a difference between `"1"` and `1` - tries to introduce slightly better errors, i.e. by putting left / right on new lines => this should hopefully help when the values become a bit big 😋 # User-Facing Changes the original issue: ```nushell > assert equal {one:1 two:2} {one:"1" two:"2"} Error: × Assertion failed. ╭─[entry #3:1:1] 1 │ assert equal {one:1 two:2} {one:"1" two:"2"} · ───────────────┬─────────────── · ╰── These are not equal. Left : '{one: 1, two: 2}' Right : '{one: "1", two: "2"}' ╰──── ``` a sample for all the assertions and their new messages ```nushell > assert equal {one:1 two:2} {one:"1" two:"2"} Error: × Assertion failed. ╭─[entry #3:1:1] 1 │ assert equal {one:1 two:2} {one:"1" two:"2"} · ───────────────┬─────────────── · ╰── These are not equal. Left : '{one: 1, two: 2}' Right : '{one: "1", two: "2"}' ╰──── ``` ```nushell > assert equal 1 2 Error: × Assertion failed. ╭─[entry #4:1:1] 1 │ assert equal 1 2 · ─┬─ · ╰── These are not equal. Left : '1' Right : '2' ╰──── ``` ```nushell > assert less 3 1 Error: × Assertion failed. ╭─[entry #6:1:1] 1 │ assert less 3 1 · ─┬─ · ╰── The condition *left < right* is not satisfied. Left : '3' Right : '1' ╰──── ``` ```nushell > assert less or equal 3 1 Error: × Assertion failed. ╭─[entry #7:1:1] 1 │ assert less or equal 3 1 · ─┬─ · ╰── The condition *left <= right* is not satisfied. Left : '3' Right : '1' ╰──── ``` ```nushell > assert greater 1 3 Error: × Assertion failed. ╭─[entry #8:1:1] 1 │ assert greater 1 3 · ─┬─ · ╰── The condition *left > right* is not satisfied. Left : '1' Right : '3' ╰──── ``` ```nushell > assert greater or equal 1 3 Error: × Assertion failed. ╭─[entry #9:1:1] 1 │ assert greater or equal 1 3 · ─┬─ · ╰── The condition *left < right* is not satisfied. Left : '1' Right : '3' ╰──── ``` ```nushell > assert length [1 2 3] 2 Error: × Assertion failed. ╭─[entry #10:1:1] 1 │ assert length [1 2 3] 2 · ────┬──── · ╰── This does not have the correct length: value : [1, 2, 3] length : 3 expected : 2 ╰──── ``` ```nushell > assert length [1 "2" 3] 2 Error: × Assertion failed. ╭─[entry #11:1:1] 1 │ assert length [1 "2" 3] 2 · ─────┬───── · ╰── This does not have the correct length: value : [1, "2", 3] length : 3 expected : 2 ╰──── ``` ```nushell > assert str contains "foo" "bar" Error: × Assertion failed. ╭─[entry #13:1:1] 1 │ assert str contains "foo" "bar" · ─────┬───── · ╰── This does not contain '($right)'. value: "foo" ╰──── ``` # Tests + Formatting # After Submitting
rgwood
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Feb 11, 2024
…ushell#11569) # Description Fixes: nushell#11455 ### For arguments which is annotated with `:path/:directory/:glob` To fix the issue, we need to have a way to know if a path is originally quoted during runtime. So the information needed to be added at several levels: * parse time (from user input to expression) We need to add quoted information into `Expr::Filepath`, `Expr::Directory`, `Expr::GlobPattern` * eval time When convert from `Expr::Filepath`, `Expr::Directory`, `Expr::GlobPattern` to `Value::String` during runtime, we won't auto expanded the path if it's quoted ### For `ls` It's really special, because it accepts a `String` as a pattern, and it generates `glob` expression inside the command itself. So the idea behind the change is introducing a special SyntaxShape to ls: `SyntaxShape::LsGlobPattern`. So we can track if the pattern is originally quoted easier, and we don't auto expand the path either. Then when constructing a glob pattern inside ls, we check if input pattern is quoted, if so: we escape the input pattern, so we can run `ls a[123]b`, because it's already escaped. Finally, to accomplish the checking process, we also need to introduce a new value type called `Value::QuotedString` to differ from `Value::String`, it's used to generate an enum called `NuPath`, which is finally used in `ls` function. `ls` learned from `NuPath` to know if user input is quoted. # User-Facing Changes Actually it contains several changes ### For arguments which is annotated with `:path/:directory/:glob` #### Before ```nushell > def foo [p: path] { echo $p }; print (foo "~/a"); print (foo '~/a') /home/windsoilder/a /home/windsoilder/a > def foo [p: directory] { echo $p }; print (foo "~/a"); print (foo '~/a') /home/windsoilder/a /home/windsoilder/a > def foo [p: glob] { echo $p }; print (foo "~/a"); print (foo '~/a') /home/windsoilder/a /home/windsoilder/a ``` #### After ```nushell > def foo [p: path] { echo $p }; print (foo "~/a"); print (foo '~/a') ~/a ~/a > def foo [p: directory] { echo $p }; print (foo "~/a"); print (foo '~/a') ~/a ~/a > def foo [p: glob] { echo $p }; print (foo "~/a"); print (foo '~/a') ~/a ~/a ``` ### For ls command `touch '[uwu]'` #### Before ``` ❯ ls -D "[uwu]" Error: × No matches found for [uwu] ╭─[entry #6:1:1] 1 │ ls -D "[uwu]" · ───┬─── · ╰── Pattern, file or folder not found ╰──── help: no matches found ``` #### After ``` ❯ ls -D "[uwu]" ╭───┬───────┬──────┬──────┬──────────╮ │ # │ name │ type │ size │ modified │ ├───┼───────┼──────┼──────┼──────────┤ │ 0 │ [uwu] │ file │ 0 B │ now │ ╰───┴───────┴──────┴──────┴──────────╯ ``` # Tests + Formatting Done # After Submitting NaN
rgwood
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Jun 13, 2024
# Description Fix wrong casting which is related to nushell#12974 (comment) # User-Facing Changes AS-IS (before fixing) ``` $ "-10000PiB" | into filesize 6.2 EiB <--- Wrong casted value $ "10000PiB" | into filesize -6.2 EiB <--- Wrong casted value ``` TO-BE (after fixing) ``` $ "-10000PiB" | into filesize Error: nu::shell::cant_convert × Can't convert to filesize. ╭─[entry #6:1:1] 1 │ "-10000PiB" | into filesize · ─────┬───── · ╰── can't convert string to filesize ╰──── $ "10000PiB" | into filesize Error: nu:🐚:cant_convert × Can't convert to filesize. ╭─[entry #7:1:1] 1 │ "10000PiB" | into filesize · ─────┬──── · ╰── can't convert string to filesize ╰──── ```
rgwood
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Aug 9, 2024
# Description From the feedbacks from @amtoine , it's good to make nushell shows error for `o>|` syntax. # User-Facing Changes ## Before ```nushell 'foo' o>| print 07/09/2024 06:44:23 AM Error: nu::parser::parse_mismatch × Parse mismatch during operation. ╭─[entry #6:1:9] 1 │ 'foo' o>| print · ┬ · ╰── expected redirection target ``` ## After ```nushell 'foo' o>| print 07/09/2024 06:47:26 AM Error: nu::parser::parse_mismatch × Parse mismatch during operation. ╭─[entry #1:1:7] 1 │ 'foo' o>| print · ─┬─ · ╰── expected `|`. Redirection stdout to pipe is the same as piping directly. ╰──── ``` # Tests + Formatting Added one test --------- Co-authored-by: Darren Schroeder <[email protected]>
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This PR creates an experimental
watchcommand:It uses the popular
notifycrate to watch for file changes., and it runs in the foreground until the user pressesctrl+c.Motivation
I find myself using little file watcher tools to automate tasks quite often; for example I'll want to run tests when my code changes, watch what a program is doing inside a directory, etc.
It's currently possible to use a tool like
watchexecto launch a new instance of Nu in response to file changes. But I think it might be more powerful and ergonomic to be able to respond to events without leaving Nu.Future work
Build measurements
Before PR: 493 crates, 35.37s, 15.8 MiB
After PR: 502 crates, 36.42s, 16.0MiB
(
cargo build --releaseon Linux w/ 12900K CPU, mold linker)Tests
Make sure you've run and fixed any issues with these commands:
cargo fmt --all -- --checkto check standard code formatting (cargo fmt --allapplies these changes)cargo clippy --all --all-features -- -D warnings -D clippy::unwrap_used -A clippy::needless_collectto check that you're using the standard code stylecargo build; cargo test --all --all-featuresto check that all the tests pass