87 lines
1.9 KiB
JavaScript
87 lines
1.9 KiB
JavaScript
|
import process from 'node:process';
|
||
|
|
import ansiEscapes from 'ansi-escapes';
|
||
|
|
import cliCursor from 'cli-cursor';
|
||
|
|
import wrapAnsi from 'wrap-ansi';
|
||
|
|
import sliceAnsi from 'slice-ansi';
|
||
|
|
import stripAnsi from 'strip-ansi';
|
||
|
|
|
||
|
|
const defaultTerminalHeight = 24;
|
||
|
|
|
||
|
|
const getWidth = stream => {
|
||
|
|
const {columns} = stream;
|
||
|
|
|
||
|
|
if (!columns) {
|
||
|
|
return 80;
|
||
|
|
}
|
||
|
|
|
||
|
|
return columns;
|
||
|
|
};
|
||
|
|
|
||
|
|
const fitToTerminalHeight = (stream, text) => {
|
||
|
|
const terminalHeight = stream.rows || defaultTerminalHeight;
|
||
|
|
const lines = text.split('\n');
|
||
|
|
|
||
|
|
const toRemove = lines.length - terminalHeight;
|
||
|
|
if (toRemove <= 0) {
|
||
|
|
return text;
|
||
|
|
}
|
||
|
|
|
||
|
|
return sliceAnsi(
|
||
|
|
text,
|
||
|
|
stripAnsi(lines.slice(0, toRemove).join('\n')).length + 1,
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
export function createLogUpdate(stream, {showCursor = false} = {}) {
|
||
|
|
let previousLineCount = 0;
|
||
|
|
let previousWidth = getWidth(stream);
|
||
|
|
let previousOutput = '';
|
||
|
|
|
||
|
|
const render = (...arguments_) => {
|
||
|
|
if (!showCursor) {
|
||
|
|
cliCursor.hide();
|
||
|
|
}
|
||
|
|
|
||
|
|
let output = arguments_.join(' ') + '\n';
|
||
|
|
output = fitToTerminalHeight(stream, output);
|
||
|
|
const width = getWidth(stream);
|
||
|
|
if (output === previousOutput && previousWidth === width) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
previousOutput = output;
|
||
|
|
previousWidth = width;
|
||
|
|
output = wrapAnsi(output, width, {
|
||
|
|
trim: false,
|
||
|
|
hard: true,
|
||
|
|
wordWrap: false,
|
||
|
|
});
|
||
|
|
stream.write(ansiEscapes.eraseLines(previousLineCount) + output);
|
||
|
|
previousLineCount = output.split('\n').length;
|
||
|
|
};
|
||
|
|
|
||
|
|
render.clear = () => {
|
||
|
|
stream.write(ansiEscapes.eraseLines(previousLineCount));
|
||
|
|
previousOutput = '';
|
||
|
|
previousWidth = getWidth(stream);
|
||
|
|
previousLineCount = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
render.done = () => {
|
||
|
|
previousOutput = '';
|
||
|
|
previousWidth = getWidth(stream);
|
||
|
|
previousLineCount = 0;
|
||
|
|
|
||
|
|
if (!showCursor) {
|
||
|
|
cliCursor.show();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return render;
|
||
|
|
}
|
||
|
|
|
||
|
|
const logUpdate = createLogUpdate(process.stdout);
|
||
|
|
export default logUpdate;
|
||
|
|
|
||
|
|
export const logUpdateStderr = createLogUpdate(process.stderr);
|