nushell/crates/nu-command/src/commands/from_tsv.rs
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

56 lines
1.3 KiB
Rust

use crate::commands::from_delimited_data::from_delimited_data;
use crate::prelude::*;
use nu_engine::WholeStreamCommand;
use nu_errors::ShellError;
use nu_protocol::Signature;
pub struct FromTSV;
#[derive(Deserialize)]
pub struct FromTSVArgs {
headerless: bool,
}
#[async_trait]
impl WholeStreamCommand for FromTSV {
fn name(&self) -> &str {
"from tsv"
}
fn signature(&self) -> Signature {
Signature::build("from tsv").switch(
"headerless",
"don't treat the first row as column names",
None,
)
}
fn usage(&self) -> &str {
"Parse text as .tsv and create table."
}
async fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
from_tsv(args).await
}
}
async fn from_tsv(args: CommandArgs) -> Result<OutputStream, ShellError> {
let name = args.call_info.name_tag.clone();
let (FromTSVArgs { headerless }, input) = args.process().await?;
from_delimited_data(headerless, '\t', "TSV", input, name).await
}
#[cfg(test)]
mod tests {
use super::FromTSV;
use super::ShellError;
#[test]
fn examples_work_as_expected() -> Result<(), ShellError> {
use crate::examples::test as test_examples;
Ok(test_examples(FromTSV {})?)
}
}