Marin Muštra

// Name: Normalize GIT branch name
// Description: Copy text and paste it to normalized GIT branch name
// Author: Marin Muštra
// LinkedIn: https://www.linkedin.com/in/marin-mustra

import '@johnlindquist/kit';

const delimiterChar = '-';
const illegalChar = '';
const mergableChars = [delimiterChar, illegalChar];
const shouldLowerCase = true;

const input = await paste();
let branchName = '';

// Sanitize references
// https://github.com/microsoft/vscode/blob/main/extensions/git/src/commands.ts#L2182
// https://github.com/gitextensions/gitextensions/blob/6eab7392839c4d103bad1581fba5eaf6f008d766/GitCommands/Git/GitBranchNameNormaliser.cs
const getSanitizedInput = () => {
  const edgePattern = /^[-\s]+|[-\s]+$/g;
  const delimiterPattern = /\s+|_+|-+/g;
  const illegalPattern = /^-+|^\.|\/\.|\.\.|~|\^|:|\/$|\.lock$|\.lock\/|\\|\*|\?|@{|^@$|\.$|\[|\]$|^\/|\/$/g;

  const isInvalidChar =
    (!edgePattern.test(delimiterChar) && illegalPattern.test(delimiterChar)) ||
    (!edgePattern.test(illegalChar) && illegalPattern.test(illegalChar));

  if (isInvalidChar) {
    throw new Error('Invalid delimiter/illegal character!');
  }

  let sanitized = input.trim().replace(delimiterPattern, delimiterChar).replace(illegalPattern, illegalChar);
  mergableChars?.forEach((char) => char && (sanitized = sanitized.replace(new RegExp(`\\${char}+`, 'g'), char)));
  sanitized = sanitized.replace(edgePattern, '');

  return shouldLowerCase ? sanitized.toLowerCase() : sanitized;
};

try {
  branchName = getSanitizedInput();

  if (!branchName) {
    throw new Error('Invalid input!');
  }
} catch (error) {
  const hint = `${error.message}`;
  await editor({ hint, input, description: 'ERROR', readOnly: true, lineNumbers: 'on' });

  exit();
}

await setSelectedText(branchName);