forked from extern/nushell
Change update help+examples for creating new columns (#4849)
* Change update help/examples for creating new column * Enable example tests for update command
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@ -19,7 +19,7 @@ impl Command for Update {
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.required(
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"field",
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SyntaxShape::CellPath,
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"the name of the column to update",
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"the name of the column to update or create",
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)
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.required(
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"replacement value",
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@ -30,7 +30,7 @@ impl Command for Update {
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}
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fn usage(&self) -> &str {
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"Update an existing column to have a new value."
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"Update an existing column to have a new value, or create a new column."
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}
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fn run(
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@ -48,13 +48,17 @@ impl Command for Update {
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description: "Update a column value",
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example: "echo {'name': 'nu', 'stars': 5} | update name 'Nushell'",
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result: Some(Value::Record { cols: vec!["name".into(), "stars".into()], vals: vec![Value::test_string("Nushell"), Value::test_int(5)], span: Span::test_data()}),
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}, Example {
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description: "Add a new column",
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example: "echo {'name': 'nu', 'stars': 5} | update language 'Rust'",
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result: Some(Value::Record { cols: vec!["name".into(), "stars".into(), "language".into()], vals: vec![Value::test_string("nu"), Value::test_int(5), Value::test_string("Rust")], span: Span::test_data()}),
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}, Example {
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description: "Use in block form for more involved updating logic",
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example: "echo [[count fruit]; [1 'apple']] | update count {|f| $f.count + 1}",
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result: Some(Value::List { vals: vec![Value::Record { cols: vec!["count".into(), "fruit".into()], vals: vec![Value::test_int(2), Value::test_string("apple")], span: Span::test_data()}], span: Span::test_data()}),
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}, Example {
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description: "Use in block form for more involved updating logic",
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example: "echo [[project, authors]; ['nu', ['Andrés', 'JT', 'Yehuda']]] | update authors { get authors | str collect ',' }",
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example: "echo [[project, authors]; ['nu', ['Andrés', 'JT', 'Yehuda']]] | update authors {|a| $a.authors | str collect ','}",
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result: Some(Value::List { vals: vec![Value::Record { cols: vec!["project".into(), "authors".into()], vals: vec![Value::test_string("nu"), Value::test_string("Andrés,JT,Yehuda")], span: Span::test_data()}], span: Span::test_data()}),
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}]
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}
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@ -135,3 +139,15 @@ fn update(
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)
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_examples() {
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use crate::test_examples;
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test_examples(Update {})
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}
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}
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