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table --collapse dont do truncation return message instead (#8172)

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Reverts #8042

I've just noticed that #8042 was merged, but I didn't addressed your
@fdncred last comment.
This PR reverts #8042 and returns a message in cases where we need
truncation/wrapping.


157b7e0b60/crates/nu-command/tests/commands/table.rs (L234-L240)

Signed-off-by: Maxim Zhiburt <zhiburt@gmail.com>
This commit is contained in:
Maxim Zhiburt 2023-02-22 21:35:45 +03:00 committed by GitHub
parent c7966e81c2
commit 8deecc0137
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 25 additions and 130 deletions
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25
crates/nu-command/src/viewers/table.rs
View file

@ -354,17 +354,9 @@ fn build_collapsed_table(
colorize_value(&mut value, config, style_computer);
let theme = load_theme_from_config(config);
let table = nu_table::NuTable::new(
value,
true,
term_width,
config,
style_computer,
&theme,
false,
);
let table = nu_table::NuTable::new(value, true, config, style_computer, &theme, false);
let table = table.draw();
let table = table.draw(term_width);
Ok(table)
}
@ -1674,17 +1666,10 @@ impl PagingTableCreator {
colorize_value(&mut value, config, &style_computer);
let table = nu_table::NuTable::new(
value,
true,
term_width,
config,
&style_computer,
&theme,
need_footer,
);
let table =
nu_table::NuTable::new(value, true, config, &style_computer, &theme, need_footer);
Ok(table.draw())
Ok(table.draw(term_width))
}
fn build_general(&mut self, batch: &[Value]) -> Result<Option<String>, ShellError> {

8
crates/nu-command/tests/commands/table.rs
View file

@ -231,6 +231,14 @@ fn table_collapse_hearts() {
);
}
#[test]
fn table_collapse_doesnot_support_width_control() {
let actual = nu!(
r#"[[a]; [11111111111111111111111111111111111111111111111111111111111111111111111111111111]] | table --collapse"#
);
assert_eq!(actual.out, "Couldn't fit table into 80 columns!");
}
#[test]
fn table_expand_0() {
let actual = nu!(r#"[[a b, c]; [1 2 3] [4 5 [1 2 3]]] | table --expand"#);

122
crates/nu-table/src/nu_protocol_table.rs
View file

@ -1,6 +1,6 @@
use std::collections::HashMap;
use crate::{string_truncate, string_width, Alignments, TableTheme};
use crate::{string_width, Alignments, TableTheme};
use nu_color_config::StyleComputer;
use nu_protocol::{Config, Span, Value};
use tabled::{
@ -17,14 +17,13 @@ use serde_json::Value as Json;
///
/// It doesn't support alignment and a proper width control.
pub struct NuTable {
inner: Option<String>,
inner: String,
}
impl NuTable {
pub fn new(
value: Value,
collapse: bool,
termwidth: usize,
config: &Config,
style_computer: &StyleComputer,
theme: &TableTheme,
@ -34,44 +33,19 @@ impl NuTable {
load_theme(&mut table, style_computer, theme);
let cfg = table.get_config().clone();
let mut val = nu_protocol_value_to_json(value, config, with_footer);
let val = nu_protocol_value_to_json(value, config, with_footer);
let table = build_table(val, cfg, collapse);
let table = build_table(val.clone(), cfg.clone(), collapse);
let table_width = string_width(&table);
if table_width > termwidth {
// Doing a soffisticated width control would require some deep rooted changes.
// (Which is might neessery to be done)
//
// Instead we peek biggest cells 1 by 1 and truncating them.
loop {
match get_biggest_value(&mut val) {
Some((value, width)) => {
if width == 0 {
return Self { inner: None };
}
let need_to_cut = width - 1;
__truncate_value(value, need_to_cut);
let table = build_table(val.clone(), cfg.clone(), collapse);
let table_width = string_width(&table);
if table_width <= termwidth {
return Self { inner: Some(table) };
}
}
None => return Self { inner: None },
}
}
}
Self { inner: Some(table) }
Self { inner: table }
}
pub fn draw(&self) -> Option<String> {
self.inner.clone()
pub fn draw(&self, termwidth: usize) -> Option<String> {
let table_width = string_width(&self.inner);
if table_width > termwidth {
None
} else {
Some(self.inner.clone())
}
}
}
@ -251,75 +225,3 @@ where
.with(AlignmentStrategy::PerLine),
);
}
fn __truncate_value(value: &mut Json, width: usize) {
match value {
Json::Null => *value = Json::String(string_truncate("null", width)),
Json::Bool(b) => {
let val = if *b { "true" } else { "false" };
*value = Json::String(string_truncate(val, width));
}
Json::Number(n) => {
let n = n.to_string();
*value = Json::String(string_truncate(&n, width));
}
Json::String(s) => {
*value = Json::String(string_truncate(s, width));
}
Json::Array(_) | Json::Object(_) => {
unreachable!("must never happen")
}
}
}
fn get_biggest_value(value: &mut Json) -> Option<(&mut Json, usize)> {
match value {
Json::Null => Some((value, 4)),
Json::Bool(_) => Some((value, 4)),
Json::Number(n) => {
let width = n.to_string().len();
Some((value, width))
}
Json::String(s) => {
let width = string_width(s);
Some((value, width))
}
Json::Array(arr) => {
if arr.is_empty() {
return None;
}
let mut width = 0;
let mut index = 0;
for (i, value) in arr.iter_mut().enumerate() {
if let Some((_, w)) = get_biggest_value(value) {
if w >= width {
index = i;
width = w;
}
}
}
get_biggest_value(&mut arr[index])
}
Json::Object(map) => {
if map.is_empty() {
return None;
}
let mut width = 0;
let mut index = String::new();
for (key, mut value) in map.clone() {
if let Some((_, w)) = get_biggest_value(&mut value) {
if w >= width {
index = key;
width = w;
}
}
}
get_biggest_value(&mut map[&index])
}
}
}