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external with redirection

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This commit is contained in:
Fernando Herrera
2021-09-23 17:42:03 +01:00
parent 984538555c
commit 660e8b5b73
5 changed files with 210 additions and 16 deletions
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21
crates/nu-engine/src/eval.rs
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@ -73,6 +73,7 @@ fn eval_external(
name: &Span,
args: &[Span],
input: Value,
last_expression: bool,
) -> Result<Value, ShellError> {
let engine_state = context.engine_state.borrow();
@ -98,6 +99,10 @@ fn eval_external(
})
.collect();
if last_expression {
call.named.push(("last_expression".into(), None))
}
command.run(context, &call, input)
}
@ -158,7 +163,9 @@ pub fn eval_expression(
}
Expr::RowCondition(_, expr) => eval_expression(context, expr),
Expr::Call(call) => eval_call(context, call, Value::nothing()),
Expr::ExternalCall(name, args) => eval_external(context, name, args, Value::nothing()),
Expr::ExternalCall(name, args) => {
eval_external(context, name, args, Value::nothing(), true)
}
Expr::Operator(_) => Ok(Value::Nothing { span: expr.span }),
Expr::BinaryOp(lhs, op, rhs) => {
let op_span = op.span;
@ -239,9 +246,9 @@ pub fn eval_block(
block: &Block,
mut input: Value,
) -> Result<Value, ShellError> {
for stmt in &block.stmts {
for stmt in block.stmts.iter() {
if let Statement::Pipeline(pipeline) = stmt {
for elem in &pipeline.expressions {
for (i, elem) in pipeline.expressions.iter().enumerate() {
match elem {
Expression {
expr: Expr::Call(call),
@ -253,7 +260,13 @@ pub fn eval_block(
expr: Expr::ExternalCall(name, args),
..
} => {
input = eval_external(context, name, args, input)?;
input = eval_external(
context,
name,
args,
input,
i == pipeline.expressions.len() - 1,
)?;
}
elem => {