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<!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR seeks to generalize the `seq date` command so that it can receive any duration as an `--increment`. Whereas the current command can only output a list of dates spaced at least 1 day apart, the new command can output a list of datetimes that are spaced apart by any duration. For example: ``` > seq date --begin-date 2025-01-01 --end-date 2025-01-02 --increment 6hr --output-format "%Y-%m-%d %H:%M:%S" ╭───┬─────────────────────╮ │ 0 │ 2025-01-01 00:00:00 │ │ 1 │ 2025-01-01 06:00:00 │ │ 2 │ 2025-01-01 12:00:00 │ │ 3 │ 2025-01-01 18:00:00 │ │ 4 │ 2025-01-02 00:00:00 │ ╰───┴─────────────────────╯ ``` Note that the default behavior remains unchanged: ``` > seq date --begin-date 2025-01-01 --end-date 2025-01-02 ╭───┬────────────╮ │ 0 │ 2025-01-01 │ │ 1 │ 2025-01-02 │ ╰───┴────────────╯ ``` The default output format also remains unchanged: ``` > seq date --begin-date 2025-01-01 --end-date 2025-01-02 --increment 6hr ╭───┬────────────╮ │ 0 │ 2025-01-01 │ │ 1 │ 2025-01-01 │ │ 2 │ 2025-01-01 │ │ 3 │ 2025-01-01 │ │ 4 │ 2025-01-02 │ ╰───┴────────────╯ ``` # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> ## Breaking Changes * The `--increment` argument no longer accepts just an integer and requires a duration ``` # NEW BEHAVIOR > seq date --begin-date 2025-01-01 --end-date 2025-01-02 --increment 1 Error: nu::parser::parse_mismatch × Parse mismatch during operation. ╭─[entry #13:1:68] 1 │ seq date --begin-date 2025-01-01 --end-date 2025-01-02 --increment 1 · ┬ · ╰── expected duration with valid units ╰──── ``` EDIT: Break Change is mitigated. `--increment` accepts either an integer or duration. ## Bug Fix * The `--days` argument had an off-by-one error and would print 1 too many elements in the output. For example, ``` # OLD BEHAVIOR > seq date -b 2025-01-01 --days 5 --increment 1 ╭───┬────────────╮ │ 0 │ 2025-01-01 │ │ 1 │ 2025-01-02 │ │ 2 │ 2025-01-03 │ │ 3 │ 2025-01-04 │ │ 4 │ 2025-01-05 │ │ 5 │ 2025-01-06 │ <-- Extra element ╰───┴────────────╯ # NEW BEHAVIOR > seq date -b 2025-01-01 --days 5 --increment 1day ╭───┬────────────╮ │ 0 │ 2025-01-01 │ │ 1 │ 2025-01-02 │ │ 2 │ 2025-01-03 │ │ 3 │ 2025-01-04 │ │ 4 │ 2025-01-05 │ ╰───┴────────────╯ ``` ## New Argument * A `--periods` argument is introduced to indicate the number of output elements, regardless of the `--increment` value. Importantly, the `--days` argument is ignored when `--periods` is set. ``` # NEW BEHAVIOR > seq date -b 2025-01-01 --days 5 --periods 10 --increment 1day ╭───┬────────────╮ │ 0 │ 2025-01-01 │ │ 1 │ 2025-01-02 │ │ 2 │ 2025-01-03 │ │ 3 │ 2025-01-04 │ │ 4 │ 2025-01-05 │ │ 5 │ 2025-01-06 │ │ 6 │ 2025-01-07 │ │ 7 │ 2025-01-08 │ │ 8 │ 2025-01-09 │ │ 9 │ 2025-01-10 │ ╰───┴────────────╯ ``` Note that the `--days` and `--periods` arguments differ in their functions. The `--periods` value determines the number of elements in the output that are always spaced `--increment` apart. The `--days` value determines the bookends `--begin-date` and `--end-date` when only one is set, though the number of elements may differ based on the `--increment` value. ``` # NEW BEHAVIOR > seq date -e 2025-01-01 --days 2 --increment 5hr --output-format "%Y-%m-%d %H:%M:%S" ╭───┬─────────────────────╮ │ 0 │ 2025-01-23 22:25:05 │ │ 1 │ 2025-01-24 03:25:05 │ │ 2 │ 2025-01-24 08:25:05 │ │ 3 │ 2025-01-24 13:25:05 │ │ 4 │ 2025-01-24 18:25:05 │ ╰───┴─────────────────────╯ ``` # 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` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass (on Windows make sure to [enable developer mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging)) - `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` 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 > ``` --> I added several examples for each user-facing change in `generators/seq_date.rs` and some tests in `tests/commands/seq_date.rs`. # 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. --> |
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.. | ||
assignment | ||
base | ||
bytes | ||
conversions | ||
database | ||
date | ||
debug | ||
hash_ | ||
math | ||
move_ | ||
network | ||
path | ||
platform | ||
query | ||
random | ||
skip | ||
str_ | ||
take | ||
url | ||
alias.rs | ||
all.rs | ||
any.rs | ||
append.rs | ||
break_.rs | ||
cal.rs | ||
cd.rs | ||
chunk_by.rs | ||
chunks.rs | ||
compact.rs | ||
complete.rs | ||
config_env_default.rs | ||
config_nu_default.rs | ||
continue_.rs | ||
debug_info.rs | ||
def.rs | ||
default.rs | ||
detect_columns.rs | ||
do_.rs | ||
drop.rs | ||
du.rs | ||
each.rs | ||
echo.rs | ||
empty.rs | ||
error_make.rs | ||
every.rs | ||
exec.rs | ||
export_def.rs | ||
fill.rs | ||
filter.rs | ||
find.rs | ||
first.rs | ||
flatten.rs | ||
for_.rs | ||
format.rs | ||
generate.rs | ||
get.rs | ||
glob.rs | ||
griddle.rs | ||
group_by.rs | ||
headers.rs | ||
help.rs | ||
histogram.rs | ||
ignore.rs | ||
insert.rs | ||
inspect.rs | ||
interleave.rs | ||
into_datetime.rs | ||
into_filesize.rs | ||
into_int.rs | ||
join.rs | ||
last.rs | ||
length.rs | ||
let_.rs | ||
lines.rs | ||
loop_.rs | ||
ls.rs | ||
match_.rs | ||
merge_deep.rs | ||
merge.rs | ||
mktemp.rs | ||
mod.rs | ||
mut_.rs | ||
nu_check.rs | ||
open.rs | ||
par_each.rs | ||
parse.rs | ||
prepend.rs | ||
print.rs | ||
redirection.rs | ||
reduce.rs | ||
reject.rs | ||
rename.rs | ||
return_.rs | ||
reverse.rs | ||
rm.rs | ||
roll.rs | ||
rotate.rs | ||
run_external.rs | ||
save.rs | ||
select.rs | ||
semicolon.rs | ||
seq_char.rs | ||
seq_date.rs | ||
seq.rs | ||
slice.rs | ||
sort_by.rs | ||
sort.rs | ||
source_env.rs | ||
split_column.rs | ||
split_row.rs | ||
start.rs | ||
table.rs | ||
tee.rs | ||
terminal.rs | ||
to_text.rs | ||
transpose.rs | ||
try_.rs | ||
ucp.rs | ||
ulimit.rs | ||
umkdir.rs | ||
uname.rs | ||
uniq_by.rs | ||
uniq.rs | ||
update.rs | ||
upsert.rs | ||
use_.rs | ||
utouch.rs | ||
where_.rs | ||
which.rs | ||
while_.rs | ||
window.rs | ||
with_env.rs | ||
wrap.rs | ||
zip.rs |