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Interpret lists as series of args for externals (#550)

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* Interpret lists as series of args for externals

* Fix clippy warnings
This commit is contained in:
Jakub Žádník
2021-12-22 10:13:05 +02:00
committed by GitHub
parent ea6912c3f7
commit 8ba3e3570c
2 changed files with 31 additions and 6 deletions
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29
crates/nu-command/src/system/run_external.rs
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@ -50,7 +50,7 @@ impl Command for External {
input: PipelineData,
) -> Result<PipelineData, ShellError> {
let mut name: Spanned<String> = call.req(engine_state, stack, 0)?;
let args: Vec<String> = call.rest(engine_state, stack, 1)?;
let args: Vec<Value> = call.rest(engine_state, stack, 1)?;
let last_expression = call.has_flag("last_expression");
// Translate environment variables from Values to Strings
@ -85,9 +85,34 @@ impl Command for External {
return Ok(PipelineData::new(call.head));
}
let mut args_strs = vec![];
for arg in args {
if let Ok(s) = arg.as_string() {
args_strs.push(s);
} else if let Value::List { vals, .. } = arg {
// Interpret a list as a series of arguments
for val in vals {
if let Ok(s) = val.as_string() {
args_strs.push(s);
} else {
return Err(ShellError::ExternalCommand(
"Cannot convert argument to a string".into(),
val.span()?,
));
}
}
} else {
return Err(ShellError::ExternalCommand(
"Cannot convert argument to a string".into(),
arg.span()?,
));
}
}
let command = ExternalCommand {
name,
args,
args: args_strs,
last_expression,
env_vars: env_vars_str,
call,