@qodalis/angular-cli
Version:
A lightweight and flexible command-line interface (CLI) tool designed to streamline workflows and automate tasks for developers.
79 lines • 10.9 kB
JavaScript
export class CliTerminalProgressBar {
constructor(terminal) {
this.terminal = terminal;
this.isRunning = false;
this.text = '';
this.progress = 0;
this.total = 100;
this.progressText = '';
}
show(text) {
this.isRunning = true;
this.progress = 0;
this.text = text || '';
// Update progress bar every 100ms
this.progressBarInterval = setInterval(() => {
this.updateProgressBar();
// Stop when progress reaches 100%
if (this.progress > this.total) {
this.progress = this.total;
this.hide(); // Stop the progress bar
}
}, 100);
}
hide() {
this.isRunning = false;
if (this.progressBarInterval) {
clearInterval(this.progressBarInterval);
this.progressBarInterval = null;
}
this.clearCurrentLine();
this.text = '';
this.progressText = '';
}
update(progress, options) {
if (options?.type === 'increment') {
this.progress += progress;
}
else {
this.progress = progress;
}
if (this.progress > this.total) {
this.progress = this.total;
}
this.updateProgressBar();
}
complete() {
this.progress = 100;
this.hide();
}
setText(text) {
this.text = text;
this.updateProgressBar();
}
updateProgressBar() {
const totalBars = 50; // Length of the progress bar
const filledBars = Math.round((this.progress / this.total) * totalBars);
const emptyBars = totalBars - filledBars;
const progressBar = `[${'#'.repeat(filledBars)}${'.'.repeat(emptyBars)}]`;
const percentage = `${this.progress}%`.padStart(4, ' ');
const text = this.text.length > 0 ? ` ${this.text}` : '';
this.clearCurrentLine();
this.progressText = `${progressBar} ${percentage} ${text}`;
this.terminal.write(this.progressText); // Write progress bar
}
clearCurrentLine() {
const wrappedLines = Math.ceil(this.progressText.length / this.terminal.cols);
for (let i = 0; i < wrappedLines; i++) {
this.terminal.write('\x1b[2K'); // Clear the current line
this.terminal.write('\r'); // Move the cursor to the start of the line
if (i < wrappedLines - 1) {
this.terminal.write('\x1b[F'); // Move the cursor up for all but the last line
}
if (i === wrappedLines - 1) {
this.terminal.write('\r');
}
}
}
}
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// Stop the progress bar\n            }\n        }, 100);\n    }\n\n    public hide(): void {\n        this.isRunning = false;\n        if (this.progressBarInterval) {\n            clearInterval(this.progressBarInterval);\n            this.progressBarInterval = null;\n        }\n\n        this.clearCurrentLine();\n\n        this.text = '';\n        this.progressText = '';\n    }\n\n    public update(\n        progress: number,\n        options?: CliPercentageProgressBarUpdateValueOptions,\n    ) {\n        if (options?.type === 'increment') {\n            this.progress += progress;\n        } else {\n            this.progress = progress;\n        }\n\n        if (this.progress > this.total) {\n            this.progress = this.total;\n        }\n\n        this.updateProgressBar();\n    }\n\n    public complete() {\n        this.progress = 100;\n        this.hide();\n    }\n\n    public setText(text: string) {\n        this.text = text;\n\n        this.updateProgressBar();\n    }\n\n    private updateProgressBar(): void {\n        const totalBars = 50; // Length of the progress bar\n        const filledBars = Math.round((this.progress / this.total) * totalBars);\n        const emptyBars = totalBars - filledBars;\n\n        const progressBar = `[${'#'.repeat(filledBars)}${'.'.repeat(emptyBars)}]`;\n        const percentage = `${this.progress}%`.padStart(4, ' ');\n        const text = this.text.length > 0 ? ` ${this.text}` : '';\n\n        this.clearCurrentLine();\n        this.progressText = `${progressBar} ${percentage} ${text}`;\n\n        this.terminal.write(this.progressText); // Write progress bar\n    }\n\n    private clearCurrentLine(): void {\n        const wrappedLines = Math.ceil(\n            this.progressText.length / this.terminal.cols,\n        );\n\n        for (let i = 0; i < wrappedLines; i++) {\n            this.terminal.write('\\x1b[2K'); // Clear the current line\n            this.terminal.write('\\r'); // Move the cursor to the start of the line\n            if (i < wrappedLines - 1) {\n                this.terminal.write('\\x1b[F'); // Move the cursor up for all but the last line\n            }\n\n            if (i === wrappedLines - 1) {\n                this.terminal.write('\\r');\n            }\n        }\n    }\n}\n"]}