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add --values flag to sort record by values, by default, sort record by keys (#5782)

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WindSoilder 2022-06-15 09:42:22 +08:00 committed by GitHub
parent 8d5848c955
commit 4d854f36af
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1 changed files with 41 additions and 2 deletions
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43
crates/nu-command/src/filters/sort.rs
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@ -22,6 +22,11 @@ impl Command for Sort {
"Sort string-based columns case-insensitively",
Some('i'),
)
.switch(
"values",
"If input is a single record, sort the record by values, ignored if input is not a single record",
Some('v'),
)
.category(Category::Filters)
}
@ -96,10 +101,19 @@ impl Command for Sort {
}),
},
Example {
description: "Sort doesn't change input shape",
example: "{a: 3, b: 4} | sort",
description: "Sort record by key",
example: "{b: 3, a: 4} | sort",
result: Some(Value::Record {
cols: vec!["a".to_string(), "b".to_string()],
vals: vec![Value::test_int(4), Value::test_int(3)],
span: Span::test_data(),
}),
},
Example {
description: "Sort record by value",
example: "{a: 4, b: 3} | sort",
result: Some(Value::Record {
cols: vec!["b".to_string(), "a".to_string()],
vals: vec![Value::test_int(3), Value::test_int(4)],
span: Span::test_data(),
}),
@ -119,6 +133,11 @@ impl Command for Sort {
let metadata = &input.metadata();
match input {
PipelineData::Value(Value::Record { cols, vals, span }, ..) => {
let sort_by_value = call.has_flag("values");
let record = sort_record(cols, vals, span, sort_by_value);
Ok(record.into_pipeline_data())
}
PipelineData::Value(v, ..)
if !matches!(v, Value::List { .. } | Value::Range { .. }) =>
{
@ -144,6 +163,26 @@ impl Command for Sort {
}
}
fn sort_record(cols: Vec<String>, vals: Vec<Value>, rec_span: Span, sort_by_value: bool) -> Value {
let mut input_pairs: Vec<(String, Value)> = cols.into_iter().zip(vals).collect();
if sort_by_value {
input_pairs.sort_by(|a, b| a.1.partial_cmp(&b.1).unwrap_or(Ordering::Equal));
} else {
input_pairs.sort_by(|a, b| a.0.partial_cmp(&b.0).unwrap_or(Ordering::Equal));
}
let mut new_cols = Vec::with_capacity(input_pairs.len());
let mut new_vals = Vec::with_capacity(input_pairs.len());
for (col, val) in input_pairs {
new_cols.push(col);
new_vals.push(val)
}
Value::Record {
cols: new_cols,
vals: new_vals,
span: rec_span,
}
}
pub fn sort(vec: &mut [Value], span: Span, insensitive: bool) -> Result<(), ShellError> {
if vec.is_empty() {
return Err(ShellError::GenericError(