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Export the current output width to watched program as COLUMNS environment variable #140

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Export the current output width to watched program as COLUMNS environment variable #140

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042c2a0
cargo fmt
ilyagr Nov 15, 2024
860f47b
Extract `get_pane_width()` into a function
ilyagr Jul 4, 2024
86dfa3d
COLUMNS
ilyagr Jul 4, 2024
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10 changes: 10 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,16 @@ the following to your `.bashrc`:
export HWATCH="--no-title --color --no-help-banner --border --with-scrollbar"
```

## Execution environment

When running a command, `hwatch` sets the `COLUMNS`. Many commands recognize it
automatically (try `git diff --stat`), some others accept column width as a
command-line argument.

TODO: Link to standard.

Some versions of `bash` might reset the value of `COLUMNS`; for this reason the `HWATCH_COLUMNS` environment variable is set to the same value.

## Example

### interval 10 second
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6 changes: 3 additions & 3 deletions src/ansi.rs
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Expand Up @@ -9,9 +9,9 @@ use termwiz::escape::{
parser::Parser,
Action, ControlCode,
};
use tui::style::{Color, Modifier, Style};
use tui::text::{Span,Text};
use tui::prelude::Line;
use tui::style::{Color, Modifier, Style};
use tui::text::{Span, Text};

/// Converts ANSI-escaped strings to tui-rs compatible text
pub fn bytes_to_text<'a, B: AsRef<[u8]>>(bytes: B) -> Text<'a> {
Expand Down Expand Up @@ -127,7 +127,7 @@ pub fn bytes_to_text<'a, B: AsRef<[u8]>>(bytes: B) -> Text<'a> {
let rgb_tuple = rgb.to_srgb_u8();
span_style =
span_style.bg(Color::Rgb(rgb_tuple.0, rgb_tuple.1, rgb_tuple.2));
},
}
},
_ => {}
}
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