forked from extern/nushell
Display empty records and lists (#7925)
# Description Fix some issues related to #7444 1. Empty lists and records are now displayed as a small notice in a box:   2. Empty records are now correctly displayed if inside of another record list or table:   3. Fixed inconsistent coloring of empty list placeholder inside of lists/tables:   # User-Facing Changes `table` command now displays empty records and lists like a table with text and correctly displays empty records inside tables and lists. New behavior of displaying empty lists and records can be disabled using `table.show_empty` config option. # Tests + Formatting Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # After Submitting If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date.
This commit is contained in:
Artemiy
GitHub
parent
0ab6b66d8f
commit
e389e51b2b
@ -118,7 +118,7 @@ impl<'a> StyleComputer<'a> {
|
||||
|
||||
// Used only by the `table` command.
|
||||
pub fn style_primitive(&self, value: &Value) -> TextStyle {
|
||||
let s = self.compute(&value.get_type().to_string(), value);
|
||||
let s = self.compute(&value.get_type().get_non_specified_string(), value);
|
||||
match *value {
|
||||
Value::Bool { .. } => TextStyle::with_style(AlignmentHorizontal::Left, s),
|
||||
|
||||
|
||||
@ -55,7 +55,7 @@ impl Command for Table {
|
||||
vec!["display", "render"]
|
||||
}
|
||||
|
||||
fn signature(&self) -> nu_protocol::Signature {
|
||||
fn signature(&self) -> Signature {
|
||||
Signature::build("table")
|
||||
.input_output_types(vec![(Type::Any, Type::Any)])
|
||||
// TODO: make this more precise: what turns into string and what into raw stream
|
||||
@ -276,61 +276,18 @@ fn handle_table_command(
|
||||
ctrlc,
|
||||
metadata,
|
||||
),
|
||||
PipelineData::Value(Value::Record { cols, vals, span }, ..) => {
|
||||
// Create a StyleComputer to compute styles for each value in the table.
|
||||
let style_computer = &StyleComputer::from_config(engine_state, stack);
|
||||
let result = match table_view {
|
||||
TableView::General => build_general_table2(
|
||||
style_computer,
|
||||
cols,
|
||||
vals,
|
||||
ctrlc.clone(),
|
||||
config,
|
||||
term_width,
|
||||
),
|
||||
TableView::Expanded {
|
||||
limit,
|
||||
flatten,
|
||||
flatten_separator,
|
||||
} => {
|
||||
let sep = flatten_separator.as_deref().unwrap_or(" ");
|
||||
build_expanded_table(
|
||||
cols,
|
||||
vals,
|
||||
span,
|
||||
ctrlc.clone(),
|
||||
config,
|
||||
style_computer,
|
||||
term_width,
|
||||
limit,
|
||||
flatten,
|
||||
sep,
|
||||
)
|
||||
}
|
||||
TableView::Collapsed => {
|
||||
build_collapsed_table(style_computer, cols, vals, config, term_width)
|
||||
}
|
||||
}?;
|
||||
|
||||
let result = strip_output_color(result, config);
|
||||
|
||||
let result = result.unwrap_or_else(|| {
|
||||
if nu_utils::ctrl_c::was_pressed(&ctrlc) {
|
||||
"".into()
|
||||
} else {
|
||||
// assume this failed because the table was too wide
|
||||
// TODO: more robust error classification
|
||||
format!("Couldn't fit table into {term_width} columns!")
|
||||
}
|
||||
});
|
||||
|
||||
let val = Value::String {
|
||||
val: result,
|
||||
span: call.head,
|
||||
};
|
||||
|
||||
Ok(val.into_pipeline_data())
|
||||
}
|
||||
PipelineData::Value(Value::Record { cols, vals, span }, ..) => handle_record(
|
||||
cols,
|
||||
vals,
|
||||
span,
|
||||
engine_state,
|
||||
stack,
|
||||
call,
|
||||
table_view,
|
||||
term_width,
|
||||
ctrlc,
|
||||
config,
|
||||
),
|
||||
PipelineData::Value(Value::LazyRecord { val, .. }, ..) => {
|
||||
let collected = val.collect()?.into_pipeline_data();
|
||||
handle_table_command(
|
||||
@ -527,32 +484,39 @@ fn build_expanded_table(
|
||||
}
|
||||
}
|
||||
Value::Record { cols, vals, span } => {
|
||||
let result = build_expanded_table(
|
||||
cols.clone(),
|
||||
vals.clone(),
|
||||
span,
|
||||
ctrlc.clone(),
|
||||
config,
|
||||
style_computer,
|
||||
value_width,
|
||||
deep,
|
||||
flatten,
|
||||
flatten_sep,
|
||||
)?;
|
||||
if cols.is_empty() {
|
||||
// Like list case return styled string instead of empty value
|
||||
let value = Value::Record { cols, vals, span };
|
||||
let text = value_to_styled_string(&value, config, style_computer).0;
|
||||
wrap_text(&text, value_width, config)
|
||||
} else {
|
||||
let result = build_expanded_table(
|
||||
cols.clone(),
|
||||
vals.clone(),
|
||||
span,
|
||||
ctrlc.clone(),
|
||||
config,
|
||||
style_computer,
|
||||
value_width,
|
||||
deep,
|
||||
flatten,
|
||||
flatten_sep,
|
||||
)?;
|
||||
|
||||
match result {
|
||||
Some(result) => {
|
||||
is_expanded = true;
|
||||
result
|
||||
}
|
||||
None => {
|
||||
let failed_value = value_to_styled_string(
|
||||
&Value::Record { cols, vals, span },
|
||||
config,
|
||||
style_computer,
|
||||
);
|
||||
match result {
|
||||
Some(result) => {
|
||||
is_expanded = true;
|
||||
result
|
||||
}
|
||||
None => {
|
||||
let failed_value = value_to_styled_string(
|
||||
&Value::Record { cols, vals, span },
|
||||
config,
|
||||
style_computer,
|
||||
);
|
||||
|
||||
wrap_text(&failed_value.0, value_width, config)
|
||||
wrap_text(&failed_value.0, value_width, config)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -607,6 +571,79 @@ fn build_expanded_table(
|
||||
Ok(table)
|
||||
}
|
||||
|
||||
#[allow(clippy::too_many_arguments)]
|
||||
fn handle_record(
|
||||
cols: Vec<String>,
|
||||
vals: Vec<Value>,
|
||||
span: Span,
|
||||
engine_state: &EngineState,
|
||||
stack: &mut Stack,
|
||||
call: &Call,
|
||||
table_view: TableView,
|
||||
term_width: usize,
|
||||
ctrlc: Option<Arc<AtomicBool>>,
|
||||
config: &Config,
|
||||
) -> Result<PipelineData, ShellError> {
|
||||
// Create a StyleComputer to compute styles for each value in the table.
|
||||
let style_computer = &StyleComputer::from_config(engine_state, stack);
|
||||
|
||||
let result = if cols.is_empty() {
|
||||
create_empty_placeholder("record", term_width, engine_state, stack)
|
||||
} else {
|
||||
let result = match table_view {
|
||||
TableView::General => build_general_table2(
|
||||
style_computer,
|
||||
cols,
|
||||
vals,
|
||||
ctrlc.clone(),
|
||||
config,
|
||||
term_width,
|
||||
),
|
||||
TableView::Expanded {
|
||||
limit,
|
||||
flatten,
|
||||
flatten_separator,
|
||||
} => {
|
||||
let sep = flatten_separator.as_deref().unwrap_or(" ");
|
||||
build_expanded_table(
|
||||
cols,
|
||||
vals,
|
||||
span,
|
||||
ctrlc.clone(),
|
||||
config,
|
||||
style_computer,
|
||||
term_width,
|
||||
limit,
|
||||
flatten,
|
||||
sep,
|
||||
)
|
||||
}
|
||||
TableView::Collapsed => {
|
||||
build_collapsed_table(style_computer, cols, vals, config, term_width)
|
||||
}
|
||||
}?;
|
||||
|
||||
let result = strip_output_color(result, config);
|
||||
|
||||
result.unwrap_or_else(|| {
|
||||
if nu_utils::ctrl_c::was_pressed(&ctrlc) {
|
||||
"".into()
|
||||
} else {
|
||||
// assume this failed because the table was too wide
|
||||
// TODO: more robust error classification
|
||||
format!("Couldn't fit table into {term_width} columns!")
|
||||
}
|
||||
})
|
||||
};
|
||||
|
||||
let val = Value::String {
|
||||
val: result,
|
||||
span: call.head,
|
||||
};
|
||||
|
||||
Ok(val.into_pipeline_data())
|
||||
}
|
||||
|
||||
fn handle_row_stream(
|
||||
engine_state: &EngineState,
|
||||
stack: &mut Stack,
|
||||
@ -721,18 +758,18 @@ fn handle_row_stream(
|
||||
|
||||
Ok(PipelineData::ExternalStream {
|
||||
stdout: Some(RawStream::new(
|
||||
Box::new(PagingTableCreator {
|
||||
row_offset,
|
||||
// These are passed in as a way to have PagingTable create StyleComputers
|
||||
// for the values it outputs. Because engine_state is passed in, config doesn't need to.
|
||||
engine_state: engine_state.clone(),
|
||||
stack: stack.clone(),
|
||||
ctrlc: ctrlc.clone(),
|
||||
Box::new(PagingTableCreator::new(
|
||||
head,
|
||||
stream,
|
||||
// These are passed in as a way to have PagingTable create StyleComputers
|
||||
// for the values it outputs. Because engine_state is passed in, config doesn't need to.
|
||||
engine_state.clone(),
|
||||
stack.clone(),
|
||||
ctrlc.clone(),
|
||||
row_offset,
|
||||
width_param,
|
||||
view: table_view,
|
||||
}),
|
||||
table_view,
|
||||
)),
|
||||
ctrlc,
|
||||
head,
|
||||
None,
|
||||
@ -1522,9 +1559,36 @@ struct PagingTableCreator {
|
||||
row_offset: usize,
|
||||
width_param: Option<i64>,
|
||||
view: TableView,
|
||||
elements_displayed: usize,
|
||||
reached_end: bool,
|
||||
}
|
||||
|
||||
impl PagingTableCreator {
|
||||
#[allow(clippy::too_many_arguments)]
|
||||
fn new(
|
||||
head: Span,
|
||||
stream: ListStream,
|
||||
engine_state: EngineState,
|
||||
stack: Stack,
|
||||
ctrlc: Option<Arc<AtomicBool>>,
|
||||
row_offset: usize,
|
||||
width_param: Option<i64>,
|
||||
view: TableView,
|
||||
) -> Self {
|
||||
PagingTableCreator {
|
||||
head,
|
||||
stream,
|
||||
engine_state,
|
||||
stack,
|
||||
ctrlc,
|
||||
row_offset,
|
||||
width_param,
|
||||
view,
|
||||
elements_displayed: 0,
|
||||
reached_end: false,
|
||||
}
|
||||
}
|
||||
|
||||
fn build_extended(
|
||||
&mut self,
|
||||
batch: &[Value],
|
||||
@ -1665,6 +1729,7 @@ impl Iterator for PagingTableCreator {
|
||||
let start_time = Instant::now();
|
||||
|
||||
let mut idx = 0;
|
||||
let mut reached_end = true;
|
||||
|
||||
// Pull from stream until time runs out or we have enough items
|
||||
for item in self.stream.by_ref() {
|
||||
@ -1673,10 +1738,12 @@ impl Iterator for PagingTableCreator {
|
||||
|
||||
// If we've been buffering over a second, go ahead and send out what we have so far
|
||||
if (Instant::now() - start_time).as_secs() >= 1 {
|
||||
reached_end = false;
|
||||
break;
|
||||
}
|
||||
|
||||
if idx == STREAM_PAGE_SIZE {
|
||||
reached_end = false;
|
||||
break;
|
||||
}
|
||||
|
||||
@ -1685,8 +1752,24 @@ impl Iterator for PagingTableCreator {
|
||||
}
|
||||
}
|
||||
|
||||
// Count how much elements were displayed and if end of stream was reached
|
||||
self.elements_displayed += idx;
|
||||
self.reached_end = self.reached_end || reached_end;
|
||||
|
||||
if batch.is_empty() {
|
||||
return None;
|
||||
// If this iterator has not displayed a single entry and reached its end (no more elements
|
||||
// or interrupted by ctrl+c) display as "empty list"
|
||||
return if self.elements_displayed == 0 && self.reached_end {
|
||||
// Increase elements_displayed by one so on next iteration next branch of this
|
||||
// if else triggers and terminates stream
|
||||
self.elements_displayed = 1;
|
||||
let term_width = get_width_param(self.width_param);
|
||||
let result =
|
||||
create_empty_placeholder("list", term_width, &self.engine_state, &self.stack);
|
||||
Some(Ok(result.into_bytes()))
|
||||
} else {
|
||||
None
|
||||
};
|
||||
}
|
||||
|
||||
let table = match &self.view {
|
||||
@ -1729,17 +1812,17 @@ impl Iterator for PagingTableCreator {
|
||||
|
||||
fn load_theme_from_config(config: &Config) -> TableTheme {
|
||||
match config.table_mode.as_str() {
|
||||
"basic" => nu_table::TableTheme::basic(),
|
||||
"thin" => nu_table::TableTheme::thin(),
|
||||
"light" => nu_table::TableTheme::light(),
|
||||
"compact" => nu_table::TableTheme::compact(),
|
||||
"with_love" => nu_table::TableTheme::with_love(),
|
||||
"compact_double" => nu_table::TableTheme::compact_double(),
|
||||
"rounded" => nu_table::TableTheme::rounded(),
|
||||
"reinforced" => nu_table::TableTheme::reinforced(),
|
||||
"heavy" => nu_table::TableTheme::heavy(),
|
||||
"none" => nu_table::TableTheme::none(),
|
||||
_ => nu_table::TableTheme::rounded(),
|
||||
"basic" => TableTheme::basic(),
|
||||
"thin" => TableTheme::thin(),
|
||||
"light" => TableTheme::light(),
|
||||
"compact" => TableTheme::compact(),
|
||||
"with_love" => TableTheme::with_love(),
|
||||
"compact_double" => TableTheme::compact_double(),
|
||||
"rounded" => TableTheme::rounded(),
|
||||
"reinforced" => TableTheme::reinforced(),
|
||||
"heavy" => TableTheme::heavy(),
|
||||
"none" => TableTheme::none(),
|
||||
_ => TableTheme::rounded(),
|
||||
}
|
||||
}
|
||||
|
||||
@ -1849,6 +1932,31 @@ fn need_footer(config: &Config, count_records: u64) -> bool {
|
||||
|| matches!(config.footer_mode, FooterMode::Always)
|
||||
}
|
||||
|
||||
fn create_empty_placeholder(
|
||||
value_type_name: &str,
|
||||
termwidth: usize,
|
||||
engine_state: &EngineState,
|
||||
stack: &Stack,
|
||||
) -> String {
|
||||
let config = engine_state.get_config();
|
||||
|
||||
if !config.table_show_empty {
|
||||
return "".into();
|
||||
}
|
||||
|
||||
let empty_info_string = format!("empty {}", value_type_name);
|
||||
let cell = NuTable::create_cell(empty_info_string, TextStyle::default().dimmed());
|
||||
let data = vec![vec![cell]];
|
||||
let table = NuTable::new(data, (1, 1));
|
||||
|
||||
let style_computer = &StyleComputer::from_config(engine_state, stack);
|
||||
let config = create_table_config(config, style_computer, 1, false, false, false);
|
||||
|
||||
table
|
||||
.draw(config, termwidth)
|
||||
.expect("Could not create empty table placeholder")
|
||||
}
|
||||
|
||||
fn colorize_value(value: &mut Value, config: &Config, style_computer: &StyleComputer) {
|
||||
match value {
|
||||
Value::Record { cols, vals, .. } => {
|
||||
|
||||
@ -55,11 +55,11 @@ fn find_with_string_search_with_string_not_found() {
|
||||
let actual = nu!(
|
||||
cwd: ".", pipeline(
|
||||
r#"
|
||||
[moe larry curly] | find shemp
|
||||
[moe larry curly] | find shemp | is-empty
|
||||
"#
|
||||
));
|
||||
|
||||
assert_eq!(actual.out, "");
|
||||
assert_eq!(actual.out, "true");
|
||||
}
|
||||
|
||||
#[test]
|
||||
|
||||
@ -5,11 +5,11 @@ fn splits_empty_path() {
|
||||
let actual = nu!(
|
||||
cwd: "tests", pipeline(
|
||||
r#"
|
||||
echo '' | path split
|
||||
echo '' | path split | is-empty
|
||||
"#
|
||||
));
|
||||
|
||||
assert_eq!(actual.out, "");
|
||||
assert_eq!(actual.out, "true");
|
||||
}
|
||||
|
||||
#[test]
|
||||
|
||||
@ -8,7 +8,7 @@ fn better_empty_redirection() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
ls | each { |it| nu --testbin cococo $it.name }
|
||||
ls | each { |it| nu --testbin cococo $it.name } | ignore
|
||||
"#
|
||||
));
|
||||
|
||||
|
||||
@ -1380,10 +1380,8 @@ fn table_expande_with_no_header_internally_0() {
|
||||
"│ │ │ │ │ highlight │ │ bg │ yellow │ │ │ │",
|
||||
"│ │ │ │ │ │ │ fg │ black │ │ │ │",
|
||||
"│ │ │ │ │ │ ╰────┴────────╯ │ │ │",
|
||||
"│ │ │ │ │ │ │ │ │",
|
||||
"│ │ │ │ │ status │ │ │ │",
|
||||
"│ │ │ │ │ │ │ │ │",
|
||||
"│ │ │ │ │ try │ │ │ │",
|
||||
"│ │ │ │ │ status │ {record 0 fields} │ │ │",
|
||||
"│ │ │ │ │ try │ {record 0 fields} │ │ │",
|
||||
"│ │ │ │ │ │ ╭──────────────────┬─────────╮ │ │ │",
|
||||
"│ │ │ │ │ table │ │ split_line │ #404040 │ │ │ │",
|
||||
"│ │ │ │ │ │ │ cursor │ true │ │ │ │",
|
||||
@ -1624,10 +1622,8 @@ fn table_expande_with_no_header_internally_1() {
|
||||
"│ │ │ │ │ highlight │ │ bg │ yellow │ │ │ │",
|
||||
"│ │ │ │ │ │ │ fg │ black │ │ │ │",
|
||||
"│ │ │ │ │ │ ╰────┴────────╯ │ │ │",
|
||||
"│ │ │ │ │ │ │ │ │",
|
||||
"│ │ │ │ │ status │ │ │ │",
|
||||
"│ │ │ │ │ │ │ │ │",
|
||||
"│ │ │ │ │ try │ │ │ │",
|
||||
"│ │ │ │ │ status │ {record 0 fields} │ │ │",
|
||||
"│ │ │ │ │ try │ {record 0 fields} │ │ │",
|
||||
"│ │ │ │ │ │ ╭──────────────────┬─────────╮ │ │ │",
|
||||
"│ │ │ │ │ table │ │ split_line │ #404040 │ │ │ │",
|
||||
"│ │ │ │ │ │ │ cursor │ true │ │ │ │",
|
||||
|
||||
@ -65,6 +65,7 @@ pub struct Config {
|
||||
pub external_completer: Option<usize>,
|
||||
pub filesize_metric: bool,
|
||||
pub table_mode: String,
|
||||
pub table_show_empty: bool,
|
||||
pub use_ls_colors: bool,
|
||||
pub color_config: HashMap<String, Value>,
|
||||
pub use_grid_icons: bool,
|
||||
@ -106,6 +107,7 @@ impl Default for Config {
|
||||
Config {
|
||||
filesize_metric: false,
|
||||
table_mode: "rounded".into(),
|
||||
table_show_empty: true,
|
||||
external_completer: None,
|
||||
use_ls_colors: true,
|
||||
color_config: HashMap::new(),
|
||||
@ -885,6 +887,9 @@ impl Value {
|
||||
}
|
||||
}
|
||||
}
|
||||
"show_empty" => {
|
||||
try_bool!(cols, vals, index, span, table_show_empty)
|
||||
}
|
||||
x => {
|
||||
invalid_key!(
|
||||
cols,
|
||||
|
||||
@ -96,6 +96,35 @@ impl Type {
|
||||
Type::Signature => SyntaxShape::Signature,
|
||||
}
|
||||
}
|
||||
|
||||
/// Get a string representation, without inner type specification of lists,
|
||||
/// tables and records (get `list` instead of `list<any>`
|
||||
pub fn get_non_specified_string(&self) -> String {
|
||||
match self {
|
||||
Type::Block => String::from("block"),
|
||||
Type::Closure => String::from("closure"),
|
||||
Type::Bool => String::from("bool"),
|
||||
Type::CellPath => String::from("cell path"),
|
||||
Type::Date => String::from("date"),
|
||||
Type::Duration => String::from("duration"),
|
||||
Type::Filesize => String::from("filesize"),
|
||||
Type::Float => String::from("float"),
|
||||
Type::Int => String::from("int"),
|
||||
Type::Range => String::from("range"),
|
||||
Type::Record(_) => String::from("record"),
|
||||
Type::Table(_) => String::from("table"),
|
||||
Type::List(_) => String::from("list"),
|
||||
Type::Nothing => String::from("nothing"),
|
||||
Type::Number => String::from("number"),
|
||||
Type::String => String::from("string"),
|
||||
Type::ListStream => String::from("list stream"),
|
||||
Type::Any => String::from("any"),
|
||||
Type::Error => String::from("error"),
|
||||
Type::Binary => String::from("binary"),
|
||||
Type::Custom(_) => String::from("custom"),
|
||||
Type::Signature => String::from("signature"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Display for Type {
|
||||
|
||||
@ -187,6 +187,7 @@ let-env config = {
|
||||
table: {
|
||||
mode: rounded # basic, compact, compact_double, light, thin, with_love, rounded, reinforced, heavy, none, other
|
||||
index_mode: always # "always" show indexes, "never" show indexes, "auto" = show indexes when a table has "index" column
|
||||
show_empty: true # show 'empty list' and 'empty record' placeholders for command output
|
||||
trim: {
|
||||
methodology: wrapping # wrapping or truncating
|
||||
wrapping_try_keep_words: true # A strategy used by the 'wrapping' methodology
|
||||
|
||||
@ -299,11 +299,11 @@ fn run_custom_command_with_empty_rest() {
|
||||
let actual = nu!(
|
||||
cwd: ".",
|
||||
r#"
|
||||
def rest-me-with-empty-rest [...rest: string] { echo $rest }; rest-me-with-empty-rest
|
||||
def rest-me-with-empty-rest [...rest: string] { $rest }; rest-me-with-empty-rest | is-empty
|
||||
"#
|
||||
);
|
||||
|
||||
assert_eq!(actual.out, r#""#);
|
||||
assert_eq!(actual.out, r#"true"#);
|
||||
assert_eq!(actual.err, r#""#);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user