2019-06-03 09:41:28 +02:00
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use crate::object::base::OF64;
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2019-07-03 19:37:09 +02:00
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use crate::object::{Dictionary, Primitive, Value};
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2019-06-03 09:41:28 +02:00
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use crate::prelude::*;
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fn convert_yaml_value_to_nu_value(v: &serde_yaml::Value) -> Value {
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match v {
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serde_yaml::Value::Bool(b) => Value::Primitive(Primitive::Boolean(*b)),
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serde_yaml::Value::Number(n) if n.is_i64() => {
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Value::Primitive(Primitive::Int(n.as_i64().unwrap()))
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}
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serde_yaml::Value::Number(n) if n.is_f64() => {
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Value::Primitive(Primitive::Float(OF64::from(n.as_f64().unwrap())))
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}
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2019-06-22 22:46:16 +02:00
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serde_yaml::Value::String(s) => Value::string(s),
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2019-06-03 09:41:28 +02:00
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serde_yaml::Value::Sequence(a) => Value::List(
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a.iter()
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.map(|x| convert_yaml_value_to_nu_value(x))
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.collect(),
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),
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serde_yaml::Value::Mapping(t) => {
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let mut collected = Dictionary::default();
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for (k, v) in t.iter() {
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match k {
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serde_yaml::Value::String(k) => {
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2019-07-03 19:37:09 +02:00
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collected.add(k.clone(), convert_yaml_value_to_nu_value(v));
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2019-06-03 09:41:28 +02:00
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}
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_ => unimplemented!("Unknown key type"),
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}
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}
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Value::Object(collected)
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}
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2019-06-26 09:40:43 +02:00
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serde_yaml::Value::Null => Value::Primitive(Primitive::Nothing),
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x => unimplemented!("Unsupported yaml case: {:?}", x),
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2019-06-03 09:41:28 +02:00
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}
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}
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2019-06-16 01:03:49 +02:00
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pub fn from_yaml_string_to_value(s: String) -> serde_yaml::Result<Value> {
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let v: serde_yaml::Value = serde_yaml::from_str(&s)?;
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Ok(convert_yaml_value_to_nu_value(&v))
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2019-06-03 09:41:28 +02:00
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}
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pub fn from_yaml(args: CommandArgs) -> Result<OutputStream, ShellError> {
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let out = args.input;
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2019-06-16 01:03:49 +02:00
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let span = args.name_span;
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2019-06-03 09:41:28 +02:00
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Ok(out
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2019-06-16 01:03:49 +02:00
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.map(move |a| match a {
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Value::Primitive(Primitive::String(s)) => match from_yaml_string_to_value(s) {
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Ok(x) => ReturnValue::Value(x),
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Err(_) => {
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ReturnValue::Value(Value::Error(Box::new(ShellError::maybe_labeled_error(
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"Could not parse as YAML",
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"piped data failed YAML parse",
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span,
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))))
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}
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},
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_ => ReturnValue::Value(Value::Error(Box::new(ShellError::maybe_labeled_error(
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"Expected string values from pipeline",
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"expects strings from pipeline",
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span,
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)))),
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2019-06-03 09:41:28 +02:00
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})
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.boxed())
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}
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