nushell/crates/nu-cli/src/commands/from_ods.rs

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use crate::commands::WholeStreamCommand;
use crate::prelude::*;
use calamine::*;
use nu_data::TaggedListBuilder;
use nu_errors::ShellError;
use nu_protocol::{ReturnSuccess, Signature, TaggedDictBuilder, UntaggedValue};
use std::io::Cursor;
pub struct FromODS;
#[derive(Deserialize)]
pub struct FromODSArgs {
headerless: bool,
}
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#[async_trait]
impl WholeStreamCommand for FromODS {
fn name(&self) -> &str {
"from ods"
}
fn signature(&self) -> Signature {
Signature::build("from ods").switch(
"headerless",
"don't treat the first row as column names",
None,
)
}
fn usage(&self) -> &str {
"Parse OpenDocument Spreadsheet(.ods) data and create table."
}
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async fn run(
&self,
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
from_ods(args, registry).await
}
}
async fn from_ods(
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
let tag = args.call_info.name_tag.clone();
let span = tag.span;
let registry = registry.clone();
let (
FromODSArgs {
headerless: _headerless,
},
input,
) = args.process(&registry).await?;
let bytes = input.collect_binary(tag.clone()).await?;
let buf: Cursor<Vec<u8>> = Cursor::new(bytes.item);
let mut ods = Ods::<_>::new(buf).map_err(|_| {
ShellError::labeled_error("Could not load ods file", "could not load ods file", &tag)
})?;
let mut dict = TaggedDictBuilder::new(&tag);
let sheet_names = ods.sheet_names().to_owned();
for sheet_name in &sheet_names {
let mut sheet_output = TaggedListBuilder::new(&tag);
if let Some(Ok(current_sheet)) = ods.worksheet_range(sheet_name) {
for row in current_sheet.rows() {
let mut row_output = TaggedDictBuilder::new(&tag);
for (i, cell) in row.iter().enumerate() {
let value = match cell {
DataType::Empty => UntaggedValue::nothing(),
DataType::String(s) => UntaggedValue::string(s),
DataType::Float(f) => UntaggedValue::decimal_from_float(*f, span),
DataType::Int(i) => UntaggedValue::int(*i),
DataType::Bool(b) => UntaggedValue::boolean(*b),
_ => UntaggedValue::nothing(),
};
row_output.insert_untagged(&format!("Column{}", i), value);
}
sheet_output.push_untagged(row_output.into_untagged_value());
}
dict.insert_untagged(sheet_name, sheet_output.into_untagged_value());
} else {
return Err(ShellError::labeled_error(
"Could not load sheet",
"could not load sheet",
&tag,
));
}
}
Ok(OutputStream::one(ReturnSuccess::value(dict.into_value())))
}
#[cfg(test)]
mod tests {
use super::FromODS;
#[test]
fn examples_work_as_expected() {
use crate::examples::test as test_examples;
test_examples(FromODS {})
}
}