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use crate::commands::autoview::options::ConfigExtensions;
use crate::prelude::*;
use crate::primitive::get_color_config;
use nu_data::value::format_leaf;
use nu_engine::{UnevaluatedCallInfo, WholeStreamCommand};
use nu_errors::ShellError;
use nu_protocol::hir::{self, Expression, ExternalRedirection, Literal, SpannedExpression};
use nu_protocol::{Primitive, Signature, UntaggedValue, Value};
use nu_table::TextStyle;
pub struct Command;
impl WholeStreamCommand for Command {
fn name(&self) -> &str {
"autoview"
}
fn signature(&self) -> Signature {
Signature::build("autoview")
}
fn usage(&self) -> &str {
"View the contents of the pipeline as a table or list."
}
fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
autoview(args)
}
fn examples(&self) -> Vec<Example> {
vec![
Example {
description: "Automatically view the results",
example: "ls | autoview",
result: None,
},
Example {
description: "Autoview is also implied. The above can be written as",
example: "ls",
result: None,
},
]
}
}
pub fn autoview(context: CommandArgs) -> Result<OutputStream, ShellError> {
let configuration = context.configs.lock().global_config();
let binary = context.scope.get_command("binaryview");
let text = context.scope.get_command("textview");
let table = context.scope.get_command("table");
let (mut input_stream, context) = context.split();
if let Some(x) = input_stream.next() {
match input_stream.next() {
Some(y) => {
let ctrl_c = context.ctrl_c.clone();
let xy = vec![x, y];
let xy_stream = xy.into_iter().chain(input_stream).interruptible(ctrl_c);
let stream = InputStream::from_stream(xy_stream);
if let Some(table) = table {
let command_args = create_default_command_args(&context).with_input(stream);
let result = table.run(command_args)?;
let _ = result.collect::<Vec<_>>();
}
}
_ => {
match x {
Value {
value: UntaggedValue::Primitive(Primitive::String(ref s)),
tag: Tag { anchor, span },
} if anchor.is_some() => {
if let Some(text) = text {
let mut stream = VecDeque::new();
stream.push_back(
UntaggedValue::string(s).into_value(Tag { anchor, span }),
);
let command_args =
create_default_command_args(&context).with_input(stream);
let result = text.run_with_actions(command_args)?;
let _ = result.collect::<Vec<_>>();
} else {
out!("{}", s);
}
}
Value {
value: UntaggedValue::Primitive(Primitive::String(s)),
..
} => {
out!("{}", s);
}
Value {
value: UntaggedValue::Primitive(Primitive::FilePath(s)),
..
} => {
out!("{}", s.display());
}
Value {
value: UntaggedValue::Primitive(Primitive::Int(n)),
..
} => {
out!("{}", n);
}
Value {
value: UntaggedValue::Primitive(Primitive::Decimal(n)),
..
} => {
// TODO: normalize decimal to remove trailing zeros.
// normalization will be available in next release of bigdecimal crate
let mut output = n.to_string();
if output.contains('.') {
output = output.trim_end_matches('0').to_owned();
}
if output.ends_with('.') {
output.push('0');
}
out!("{}", output);
}
Value {
value: UntaggedValue::Primitive(Primitive::Boolean(b)),
..
} => {
out!("{}", b);
}
Value {
value: UntaggedValue::Primitive(Primitive::Duration(_)),
..
} => {
let output = format_leaf(&x).plain_string(100_000);
out!("{}", output);
}
Value {
value: UntaggedValue::Primitive(Primitive::Filesize(_)),
..
} => {
let output = format_leaf(&x).plain_string(100_000);
out!("{}", output);
}
Value {
value: UntaggedValue::Primitive(Primitive::Date(d)),
..
} => {
out!("{}", d);
}
Value {
value: UntaggedValue::Primitive(Primitive::Range(_)),
..
} => {
let output = format_leaf(&x).plain_string(100_000);
out!("{}", output);
}
Value {
value: UntaggedValue::Primitive(Primitive::Binary(ref b)),
..
} => {
if let Some(binary) = binary {
let mut stream = VecDeque::new();
stream.push_back(x);
let command_args =
create_default_command_args(&context).with_input(stream);
let result = binary.run_with_actions(command_args)?;
let _ = result.collect::<Vec<_>>();
} else {
use pretty_hex::*;
out!("{:?}", b.hex_dump());
}
}
Value {
value: UntaggedValue::Error(e),
..
} => {
return Err(e);
}
Value {
value: UntaggedValue::Row(ref row),
..
} => {
let pivot_mode = configuration.pivot_mode();
let term_width = context.host.lock().width();
if pivot_mode.is_always()
|| (pivot_mode.is_auto()
&& (row
.entries
.iter()
.map(|(_, v)| v.convert_to_string())
.collect::<Vec<_>>()
.iter()
.fold(0usize, |acc, len| acc + len.len())
+ row.entries.iter().count() * 2)
> term_width)
{
let mut entries = vec![];
for (key, value) in row.entries.iter() {
entries.push(vec![
nu_table::StyledString::new(
key.to_string(),
TextStyle::new()
.alignment(nu_table::Alignment::Left)
.fg(nu_ansi_term::Color::Green)
.bold(Some(true)),
),
nu_table::StyledString::new(
format_leaf(value).plain_string(100_000),
nu_table::TextStyle::basic_left(),
),
]);
}
let color_hm = get_color_config(&configuration);
let table =
nu_table::Table::new(vec![], entries, nu_table::Theme::compact());
println!("{}", nu_table::draw_table(&table, term_width, &color_hm));
} else if let Some(table) = table {
let mut stream = VecDeque::new();
stream.push_back(x);
let command_args =
create_default_command_args(&context).with_input(stream);
let result = table.run(command_args)?;
let _ = result.collect::<Vec<_>>();
} else {
out!("{:?}", row);
}
}
Value {
value: UntaggedValue::Primitive(Primitive::Nothing),
..
} => {
// Do nothing
}
Value {
value: ref item, ..
} => {
if let Some(table) = table {
let mut stream = VecDeque::new();
stream.push_back(x);
let command_args =
create_default_command_args(&context).with_input(stream);
let result = table.run(command_args)?;
let _ = result.collect::<Vec<_>>();
} else {
out!("{:?}", item);
}
}
}
}
}
}
Ok(InputStream::empty())
}
fn create_default_command_args(context: &RunnableContextWithoutInput) -> RawCommandArgs {
let span = context.name.span;
RawCommandArgs {
host: context.host.clone(),
ctrl_c: context.ctrl_c.clone(),
configs: context.configs.clone(),
current_errors: context.current_errors.clone(),
shell_manager: context.shell_manager.clone(),
call_info: UnevaluatedCallInfo {
args: hir::Call {
head: Box::new(SpannedExpression::new(
Expression::Literal(Literal::String(String::new())),
span,
)),
positional: None,
named: None,
span,
external_redirection: ExternalRedirection::Stdout,
},
name_tag: context.name.clone(),
},
scope: Scope::new(),
}
}
#[cfg(test)]
mod tests {
use super::Command;
use super::ShellError;
#[test]
fn examples_work_as_expected() -> Result<(), ShellError> {
use crate::examples::test as test_examples;
test_examples(Command {})
}
}