66 lines
1.8 KiB
TypeScript
66 lines
1.8 KiB
TypeScript
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// See: https://stackoverflow.com/questions/9781218/how-to-change-node-jss-console-font-color
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let disableColor = !(process.stdout.isTTY);
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export function getProgressBar(action: string): (percent: number) => void {
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let lastProgress = -1;
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return function(percent: number): void {
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const progress = Math.trunc(percent * 100);
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if (disableColor) {
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if (lastProgress === -1) {
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console.log(action + "...");
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}
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lastProgress = progress;
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return;
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}
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//process.stdin.setRawMode(false);
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//process.stdin.pause();
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if (progress === lastProgress || lastProgress === 1) { return; }
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lastProgress = progress;
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(<any>(process.stdout)).clearLine();
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(<any>(process.stdout)).cursorTo(0);
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process.stdout.write(action + "... " + progress + "%");
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if (percent === 1) {
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process.stdout.write('\n');
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}
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}
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}
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const colorSequences: Record<string, string> = {
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blue: "\x1b[34m",
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cyan: "\x1b[36m",
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green: "\x1b[32m",
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magenta: "\x1b[35m",
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red: "\x1b[31m",
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yellow: "\x1b[33m",
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bold: ""
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};
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function getColor(color?: string): string {
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if (!color || color === "normal") { return "\x1b[0m"; }
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return "\x1b[1m" + colorSequences[color];
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}
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export type ColorifyFunc = (text: string) => string;
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function _colorify(format: string): ColorifyFunc {
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return function (text: string): string {
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if (disableColor) { return text; }
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return getColor(format) + text.replace(/[^ -~]+/g, "") + getColor();
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}
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}
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export const colorify: { [ format: string ]: ColorifyFunc } = Object.freeze({
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bold: _colorify("bold"),
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blue: _colorify("blue"),
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green: _colorify("green"),
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red: _colorify("red"),
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});
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