fix(compatibility): htop horizontal scrolling (#81)
* fix(compatibility): htop horizontal scrolling * style(format): make rustfmt happy
This commit is contained in:
Aram Drevekenin
GitHub
parent
b7b3ff74cf
commit
a56cb3c9ad
6 changed files with 179 additions and 28 deletions
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@ -40,33 +40,9 @@ impl CanonicalLine {
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self.wrapped_fragments.push(new_fragment);
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}
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pub fn change_width(&mut self, new_width: usize) {
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let mut characters: Vec<TerminalCharacter> = self
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.wrapped_fragments
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.iter()
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.fold(
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Vec::with_capacity(self.wrapped_fragments.len()),
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|mut characters, wrapped_fragment| {
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characters.push(wrapped_fragment.characters.iter().copied());
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characters
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},
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)
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.into_iter()
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.flatten()
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.collect();
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let mut wrapped_fragments = Vec::with_capacity(characters.len() / new_width);
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while !characters.is_empty() {
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if characters.len() > new_width {
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wrapped_fragments.push(WrappedFragment::from_vec(
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characters.drain(..new_width).collect(),
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));
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} else {
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wrapped_fragments.push(WrappedFragment::from_vec(characters.drain(..).collect()));
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}
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}
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if wrapped_fragments.is_empty() {
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wrapped_fragments.push(WrappedFragment::new());
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}
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let characters = self.flattened_characters();
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let wrapped_fragments =
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CanonicalLine::fill_fragments_up_to_width(characters, new_width, None);
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self.wrapped_fragments = wrapped_fragments;
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}
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pub fn clear_after(&mut self, fragment_index: usize, column_index: usize) {
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@ -113,6 +89,28 @@ impl CanonicalLine {
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}
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}
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}
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pub fn erase_chars(
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&mut self,
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fragment_index: usize,
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from_col: usize,
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count: usize,
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style_of_empty_space: CharacterStyles,
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) {
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let mut empty_character = EMPTY_TERMINAL_CHARACTER;
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empty_character.styles = style_of_empty_space;
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let current_width = self.wrapped_fragments.get(0).unwrap().characters.len();
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let mut characters = self.flattened_characters();
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let absolute_position_of_character = fragment_index * current_width + from_col;
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for _ in 0..count {
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characters.remove(absolute_position_of_character);
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}
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let wrapped_fragments = CanonicalLine::fill_fragments_up_to_width(
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characters,
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current_width,
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Some(empty_character),
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);
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self.wrapped_fragments = wrapped_fragments;
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}
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pub fn replace_with_empty_chars_after_cursor(
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&mut self,
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fragment_index: usize,
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@ -157,6 +155,49 @@ impl CanonicalLine {
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current_fragment.add_character(empty_char_character, i);
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}
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}
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fn flattened_characters(&self) -> Vec<TerminalCharacter> {
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self.wrapped_fragments
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.iter()
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.fold(
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Vec::with_capacity(self.wrapped_fragments.len()),
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|mut characters, wrapped_fragment| {
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characters.push(wrapped_fragment.characters.iter().copied());
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characters
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},
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)
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.into_iter()
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.flatten()
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.collect()
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}
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fn fill_fragments_up_to_width(
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mut characters: Vec<TerminalCharacter>,
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width: usize,
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padding: Option<TerminalCharacter>,
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) -> Vec<WrappedFragment> {
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let mut wrapped_fragments = vec![];
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while !characters.is_empty() {
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if characters.len() > width {
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wrapped_fragments.push(WrappedFragment::from_vec(
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characters.drain(..width).collect(),
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));
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} else {
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let mut last_fragment = WrappedFragment::from_vec(characters.drain(..).collect());
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let last_fragment_len = last_fragment.characters.len();
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if let Some(empty_char_character) = padding {
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if last_fragment_len < width {
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for _ in last_fragment_len..width {
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last_fragment.characters.push(empty_char_character);
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}
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}
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}
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wrapped_fragments.push(last_fragment);
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}
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}
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if wrapped_fragments.is_empty() {
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wrapped_fragments.push(WrappedFragment::new());
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}
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wrapped_fragments
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}
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}
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impl Debug for CanonicalLine {
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@ -538,6 +579,21 @@ impl Scroll {
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style_of_empty_space,
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);
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}
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pub fn erase_characters(&mut self, count: usize, style_of_empty_space: CharacterStyles) {
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let (current_canonical_line_index, current_line_wrap_position) =
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self.cursor_position.line_index;
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let current_cursor_column_position = self.cursor_position.column_index;
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let current_canonical_line = self
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.canonical_lines
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.get_mut(current_canonical_line_index)
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.expect("cursor out of bounds");
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current_canonical_line.erase_chars(
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current_line_wrap_position,
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current_cursor_column_position,
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count,
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style_of_empty_space,
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);
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}
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pub fn clear_all(&mut self) {
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self.canonical_lines.clear();
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self.canonical_lines.push(CanonicalLine::new());
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@ -868,13 +868,21 @@ impl vte::Perform for TerminalPane {
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params[0] as usize
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};
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self.scroll.move_cursor_to_line(line);
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} else if c == 'X' || c == 'P' {
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} else if c == 'P' {
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// erase characters
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let count = if params[0] == 0 {
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1
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} else {
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params[0] as usize
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};
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self.scroll.erase_characters(count, self.pending_styles);
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} else if c == 'X' {
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// erase characters and replace with empty characters of current style
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let count = if params[0] == 0 {
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1
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} else {
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params[0] as usize
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};
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self.scroll
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.replace_with_empty_chars(count, self.pending_styles);
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} else if c == 'T' {
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BIN
src/tests/fixtures/htop_right_scrolling
vendored
Normal file
BIN
src/tests/fixtures/htop_right_scrolling
vendored
Normal file
Binary file not shown.
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@ -237,3 +237,26 @@ pub fn htop_scrolling() {
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assert_snapshot!(snapshot);
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}
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}
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#[test]
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pub fn htop_right_scrolling() {
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let fake_win_size = PositionAndSize {
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columns: 116,
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rows: 28,
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x: 0,
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y: 0,
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};
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let fixture_name = "htop_right_scrolling";
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let mut fake_input_output = get_fake_os_input(&fake_win_size, fixture_name);
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fake_input_output.add_terminal_input(&[&COMMAND_TOGGLE, &COMMAND_TOGGLE, &QUIT]);
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start(Box::new(fake_input_output.clone()), Opt::default());
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let output_frames = fake_input_output
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.stdout_writer
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.output_frames
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.lock()
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.unwrap();
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let snapshots = get_output_frame_snapshots(&output_frames, &fake_win_size);
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for snapshot in snapshots {
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assert_snapshot!(snapshot);
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}
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}
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@ -0,0 +1,32 @@
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---
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source: src/tests/integration/compatibility.rs
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expression: snapshot
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---
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1 [|||||||||| 16.9%] Tasks: 110, 512 thr; 1 running
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2 [|||||||||| 17.1%] Load average: 1.04 1.30 1.29
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3 [||||||| 13.9%] Uptime: 6 days, 07:01:39
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4 [||||||||| 14.9%]
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Mem[|||||||||||||||||||||||||||||||||||||8.80G/15.3G]
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Swp[| 2.82M/16.0G]
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PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
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20 0 8576 4508 3356 R 1.3 0.0 0:00.11 htop
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20 0 171M 10868 7804 S 0.0 0.1 2:08.38 /sbin/init
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20 0 107M 29364 28092 S 0.0 0.2 0:03.42 /usr/lib/systemd/systemd-journald
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20 0 32648 9568 6616 S 0.0 0.1 0:01.87 /usr/lib/systemd/systemd-udevd
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20 0 78060 992 856 S 0.0 0.0 0:00.00 /usr/bin/lvmetad -f
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20 0 6952 4356 3492 S 0.0 0.0 0:57.67 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidf
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20 0 14824 7552 5984 S 0.0 0.0 0:12.93 /usr/bin/connmand -n --nodnsproxy
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20 0 17696 7940 6696 S 0.0 0.0 0:01.25 /usr/lib/systemd/systemd-logind
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20 0 1635M 56148 20460 S 0.0 0.3 1:27.24 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:38.37 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.01 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.00 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.00 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.00 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:47.55 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:26.19 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:40.77 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:47.26 /usr/bin/dockerd -H fd://
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F1Help F2Setup F3SearchF4FilterF5Tree F6SortByF7Nice -F8Nice +F9Kill F10Quit
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Bye from Mosaic!█
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@ -0,0 +1,32 @@
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---
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source: src/tests/integration/compatibility.rs
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expression: snapshot
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---
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1 [|||||||||| 16.9%] Tasks: 110, 512 thr; 1 running
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2 [|||||||||| 17.1%] Load average: 1.04 1.30 1.29
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3 [||||||| 13.9%] Uptime: 6 days, 07:01:39
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4 [||||||||| 14.9%]
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Mem[|||||||||||||||||||||||||||||||||||||8.80G/15.3G]
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Swp[| 2.82M/16.0G]
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PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command
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20 0 8576 4508 3356 R 1.3 0.0 0:00.11 htop
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20 0 171M 10868 7804 S 0.0 0.1 2:08.38 /sbin/init
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20 0 107M 29364 28092 S 0.0 0.2 0:03.42 /usr/lib/systemd/systemd-journald
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20 0 32648 9568 6616 S 0.0 0.1 0:01.87 /usr/lib/systemd/systemd-udevd
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20 0 78060 992 856 S 0.0 0.0 0:00.00 /usr/bin/lvmetad -f
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20 0 6952 4356 3492 S 0.0 0.0 0:57.67 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidf
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20 0 14824 7552 5984 S 0.0 0.0 0:12.93 /usr/bin/connmand -n --nodnsproxy
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20 0 17696 7940 6696 S 0.0 0.0 0:01.25 /usr/lib/systemd/systemd-logind
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20 0 1635M 56148 20460 S 0.0 0.3 1:27.24 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:38.37 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.01 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.00 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.00 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 0:00.00 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:47.55 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:26.19 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:40.77 /usr/bin/dockerd -H fd://
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20 0 1635M 56148 20460 S 0.0 0.3 1:47.26 /usr/bin/dockerd -H fd://
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F1Help F2Setup F3SearchF4FilterF5Tree F6SortByF7Nice -F8Nice +F9Kill F10Quit
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