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This commit is contained in:
Andrés N. Robalino 2019-09-03 04:36:23 -05:00
parent 030d73147e
commit b031d4cd77
1 changed files with 32 additions and 15 deletions
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47
src/commands/help.rs
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@ -1,6 +1,7 @@
use crate::commands::command::CommandAction;
use crate::commands::PerItemCommand;
use crate::errors::ShellError;
use crate::object::{command_dict, TaggedDictBuilder};
use crate::parser::registry;
use crate::prelude::*;
@ -22,34 +23,50 @@ impl PerItemCommand for Help {
fn run(
&self,
call_info: &CallInfo,
_registry: &CommandRegistry,
registry: &CommandRegistry,
_raw_args: &RawCommandArgs,
_input: Tagged<Value>,
) -> Result<OutputStream, ShellError> {
let span = call_info.name_span;
if call_info.args.len() == 0 {
return Ok(
vec![
Ok(ReturnSuccess::Action(
CommandAction::EnterHelpShell(
Tagged::from_simple_spanned_item(Value::nothing(), span)
)))].into()
)
return Ok(vec![Ok(ReturnSuccess::Action(CommandAction::EnterHelpShell(
Tagged::from_simple_spanned_item(Value::nothing(), span),
)))]
.into());
}
match call_info.args.expect_nth(0)? {
Tagged {
item: Value::Primitive(Primitive::String(document)),
..
} => Ok(vec![Ok(ReturnSuccess::Action(CommandAction::EnterHelpShell(
Tagged::from_simple_spanned_item(Value::string(document), span)
tag,
} => {
if document == "commands" {
let mut specs = VecDeque::new();
for cmd in registry.names() {
let mut spec = TaggedDictBuilder::new(tag.clone());
let value = command_dict(registry.get_command(&cmd).unwrap(), tag.clone());
spec.insert("name", cmd);
spec.insert(
"description",
value.get_data_by_key("usage").unwrap().as_string().unwrap(),
);
spec.insert_tagged("details", value);
specs.push_back(ReturnSuccess::value(spec.into_tagged_value()));
}
return Ok(specs.to_output_stream());
}
Ok(OutputStream::empty())
}
x => Ok(vec![Ok(ReturnSuccess::Action(CommandAction::EnterHelpShell(
x.clone(),
)))]
.into()),
x => Ok(
vec![Ok(ReturnSuccess::Action(CommandAction::EnterHelpShell(x.clone())))]
.into(),
),
}
}
}