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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { spawn, SpawnOptions } from 'child_process';
/**
* Checks if a query string potentially represents an '@' command.
* It triggers if the query starts with '@' or contains '@' preceded by whitespace
* and followed by a non-whitespace character.
*
* @param query The input query string.
* @returns True if the query looks like an '@' command, false otherwise.
*/
export const isAtCommand = (query: string): boolean =>
// Check if starts with @ OR has a space, then @
query.startsWith('@') || /\s@/.test(query);
/**
* Checks if a query string potentially represents an '/' command.
* It triggers if the query starts with '/'
*
* @param query The input query string.
* @returns True if the query looks like an '/' command, false otherwise.
*/
export const isSlashCommand = (query: string): boolean => query.startsWith('/');
// Copies a string snippet to the clipboard for different platforms
export const copyToClipboard = async (text: string): Promise<void> => {
const run = (cmd: string, args: string[], options?: SpawnOptions) =>
new Promise<void>((resolve, reject) => {
const child = options ? spawn(cmd, args, options) : spawn(cmd, args);
let stderr = '';
if (child.stderr) {
child.stderr.on('data', (chunk) => (stderr += chunk.toString()));
}
child.on('error', reject);
child.on('close', (code) => {
if (code === 0) return resolve();
const errorMsg = stderr.trim();
reject(
new Error(
`'${cmd}' exited with code ${code}${errorMsg ? `: ${errorMsg}` : ''}`,
),
);
});
if (child.stdin) {
child.stdin.on('error', reject);
child.stdin.write(text);
child.stdin.end();
} else {
reject(new Error('Child process has no stdin stream to write to.'));
}
});
// Configure stdio for Linux clipboard commands.
// - stdin: 'pipe' to write the text that needs to be copied.
// - stdout: 'inherit' since we don't need to capture the command's output on success.
// - stderr: 'pipe' to capture error messages (e.g., "command not found") for better error handling.
const linuxOptions: SpawnOptions = { stdio: ['pipe', 'inherit', 'pipe'] };
switch (process.platform) {
case 'win32':
return run('clip', []);
case 'darwin':
return run('pbcopy', []);
case 'linux':
try {
await run('xclip', ['-selection', 'clipboard'], linuxOptions);
} catch (primaryError) {
try {
// If xclip fails for any reason, try xsel as a fallback.
await run('xsel', ['--clipboard', '--input'], linuxOptions);
} catch (fallbackError) {
const primaryMsg =
primaryError instanceof Error
? primaryError.message
: String(primaryError);
const fallbackMsg =
fallbackError instanceof Error
? fallbackError.message
: String(fallbackError);
throw new Error(
`All copy commands failed. xclip: "${primaryMsg}", xsel: "${fallbackMsg}". Please ensure xclip or xsel is installed and configured.`,
);
}
}
return;
default:
throw new Error(`Unsupported platform: ${process.platform}`);
}
};
export const getUrlOpenCommand = (): string => {
// --- Determine the OS-specific command to open URLs ---
let openCmd: string;
switch (process.platform) {
case 'darwin':
openCmd = 'open';
break;
case 'win32':
openCmd = 'start';
break;
case 'linux':
openCmd = 'xdg-open';
break;
default:
// Default to xdg-open, which appears to be supported for the less popular operating systems.
openCmd = 'xdg-open';
console.warn(
`Unknown platform: ${process.platform}. Attempting to open URLs with: ${openCmd}.`,
);
break;
}
return openCmd;
};
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