git-contributor-stats/dist/chunks/utils-CFufYn8A.mjs.map

CLI to compute contributor and repository statistics from a Git repository (commits, lines added/deleted, frequency, heatmap, bus-factor), with filters and multiple output formats.

{"version":3,"file":"utils-CFufYn8A.mjs","sources":["../../src/utils/files.ts","../../src/utils/formatting.ts","../../src/utils/normalization.ts","../../src/utils/similarity.ts","../../src/utils/dates.ts"],"sourcesContent":["import fs from 'node:fs';\nimport path from 'node:path';\n\ninterface GitResult {\n  ok: boolean;\n  stdout?: string;\n  error?: string;\n  code?: number;\n}\n\ntype RunGitFunction = (repoPath: string, args: string[]) => GitResult;\n\nexport function safeReadPackageJson(): Record<string, unknown> {\n  try {\n    const pkgPath = path.join(process.cwd(), 'package.json');\n    return JSON.parse(fs.readFileSync(pkgPath, { encoding: 'utf8' }));\n  } catch {\n    return {};\n  }\n}\n\nexport function ensureDir(dir: string): void {\n  if (!dir) return;\n  if (!fs.existsSync(dir)) {\n    fs.mkdirSync(dir, { recursive: true });\n  }\n}\n\nexport function tryLoadJSON(filePath: string): Record<string, unknown> | null {\n  try {\n    const txt = fs.readFileSync(filePath, 'utf8');\n    return JSON.parse(txt);\n  } catch {\n    return null;\n  }\n}\n\nexport async function countTotalLines(repoPath: string, runGit: RunGitFunction): Promise<number> {\n  try {\n    const res = runGit(repoPath, ['ls-files']);\n    if (!res.ok) return 0;\n\n    const files = res.stdout?.split(/\\r?\\n/).filter(Boolean);\n    if (!files) return 0;\n\n    let total = 0;\n\n    for (const rel of files) {\n      const abs = path.join(repoPath, rel);\n      try {\n        const stat = fs.statSync(abs);\n        if (!stat.isFile() || stat.size > 50 * 1024 * 1024) continue;\n        const content = fs.readFileSync(abs, 'utf8');\n        total += content.split(/\\r?\\n/).length;\n      } catch {\n        /* ignore */\n      }\n    }\n    return total;\n  } catch {\n    return 0;\n  }\n}\n","export function formatNumber(n: number): string {\n  return new Intl.NumberFormat().format(n);\n}\n\nexport function svgEscape(s: string): string {\n  return String(s).replaceAll('&', '&amp;').replaceAll('<', '&lt;').replaceAll('>', '&gt;');\n}\n\nexport function parseTopStatsMetrics(input?: string): string[] {\n  const all = ['commits', 'additions', 'deletions', 'net', 'changes'];\n  if (!input) return all;\n\n  const set = new Set<string>();\n  for (const part of String(input)\n    .split(',')\n    .map((s) => s.trim().toLowerCase())\n    .filter(Boolean)) {\n    if (all.includes(part)) set.add(part);\n  }\n  return set.size ? Array.from(set) : all;\n}\n\nexport interface TopStatsEntry {\n  name?: string;\n  email?: string;\n  commits?: number;\n  added?: number;\n  deleted?: number;\n  net?: number;\n  changes?: number;\n}\n\nexport function getMetricValue(entry: TopStatsEntry, metricKey: string): number | undefined {\n  if (typeof entry[metricKey as keyof TopStatsEntry] === 'number') {\n    return entry[metricKey as keyof TopStatsEntry] as number;\n  }\n  if (metricKey === 'net') {\n    return (entry.added || 0) - (entry.deleted || 0);\n  }\n  return undefined;\n}\n\nexport function formatTopStatsLines(\n  ts: Record<string, TopStatsEntry>,\n  metrics: string[]\n): string[] {\n  const lines: string[] = [];\n  const want = new Set(\n    metrics?.length ? metrics : ['commits', 'additions', 'deletions', 'net', 'changes']\n  );\n\n  function line(label: string, entry: TopStatsEntry | undefined, metricKey: string): string {\n    if (!entry) return `${label}: —`;\n    const metricVal = getMetricValue(entry, metricKey);\n    const suffix = typeof metricVal === 'number' ? ` (${metricVal})` : '';\n    const emailPart = entry.email ? ` <${entry.email}>` : '';\n    const who = `${entry.name || '—'}${emailPart}`;\n    return `${label}: ${who}${suffix}`;\n  }\n\n  if (want.has('commits')) lines.push(line('Most commits', ts.byCommits, 'commits'));\n  if (want.has('additions')) lines.push(line('Most additions', ts.byAdditions, 'added'));\n  if (want.has('deletions')) lines.push(line('Most deletions', ts.byDeletions, 'deleted'));\n  if (want.has('net')) lines.push(line('Best net lines', ts.byNet, 'net'));\n  if (want.has('changes')) lines.push(line('Most changes (±)', ts.byChanges, 'changes'));\n  return lines;\n}\n","export function normalizeContributorName(rawName?: string): string {\n  const nameAsString = String(rawName || '');\n\n  const withoutEmailDomain = nameAsString.replace(/@.*$/, '');\n  const onlyAlphanumericAndSeparators = withoutEmailDomain.replaceAll(/[^a-zA-Z0-9\\s._-]/g, '');\n  const collapsedWhitespace = onlyAlphanumericAndSeparators.replaceAll(/\\s+/g, ' ');\n  const trimmedName = collapsedWhitespace.trim();\n\n  return trimmedName.toLowerCase();\n}\n","export function levenshteinDistance(firstString: string, secondString: string): number {\n  const firstLength = firstString.length;\n  const secondLength = secondString.length;\n\n  if (firstLength === 0) return secondLength;\n  if (secondLength === 0) return firstLength;\n\n  const distanceMatrix: number[][] = Array.from({ length: firstLength + 1 }, () =>\n    new Array(secondLength + 1).fill(0)\n  );\n\n  for (let rowIndex = 0; rowIndex <= firstLength; rowIndex++) {\n    distanceMatrix[rowIndex][0] = rowIndex;\n  }\n\n  for (let columnIndex = 0; columnIndex <= secondLength; columnIndex++) {\n    distanceMatrix[0][columnIndex] = columnIndex;\n  }\n\n  for (let rowIndex = 1; rowIndex <= firstLength; rowIndex++) {\n    for (let columnIndex = 1; columnIndex <= secondLength; columnIndex++) {\n      const charactersMatch = firstString[rowIndex - 1] === secondString[columnIndex - 1];\n      const substitutionCost = charactersMatch ? 0 : 1;\n\n      const deletionCost = distanceMatrix[rowIndex - 1][columnIndex] + 1;\n      const insertionCost = distanceMatrix[rowIndex][columnIndex - 1] + 1;\n      const substitutionTotalCost =\n        distanceMatrix[rowIndex - 1][columnIndex - 1] + substitutionCost;\n\n      distanceMatrix[rowIndex][columnIndex] = Math.min(\n        deletionCost,\n        insertionCost,\n        substitutionTotalCost\n      );\n    }\n  }\n\n  return distanceMatrix[firstLength][secondLength];\n}\n\nexport function calculateSimilarityScore(firstString: string, secondString: string): number {\n  const longerStringLength = Math.max(firstString.length, secondString.length) || 1;\n  const editDistance = levenshteinDistance(firstString.toLowerCase(), secondString.toLowerCase());\n\n  return 1 - editDistance / longerStringLength;\n}\n","// Date parsing utilities for git-contributor-stats\n\nexport function parseDateInput(input?: string): string | undefined {\n  if (!input) return undefined;\n\n  const rel = /^(\\d+)\\.(day|days|week|weeks|month|months|year|years)$/i.exec(input.trim());\n  if (rel) {\n    const qty = Number.parseInt(rel[1], 10);\n    const unit = rel[2].toLowerCase();\n    const now = new Date();\n    const d = new Date(now);\n\n    function getUnitMultiplier(unitStr: string): number {\n      if (unitStr.startsWith('day')) return 1;\n      if (unitStr.startsWith('week')) return 7;\n      if (unitStr.startsWith('month')) return 30;\n      return 365;\n    }\n\n    const mult = getUnitMultiplier(unit);\n    d.setDate(now.getDate() - qty * mult);\n    return d.toISOString();\n  }\n\n  const d = new Date(input);\n  if (!Number.isNaN(d.getTime())) return d.toISOString();\n  return input;\n}\n\nexport function isoWeekKey(date: Date): string {\n  const d = new Date(date);\n  const target = new Date(d.valueOf());\n  const dayNumber = (d.getDay() + 6) % 7;\n  target.setDate(target.getDate() - dayNumber + 3);\n  const firstThursday = new Date(target.getFullYear(), 0, 4);\n  const diff = (target.getTime() - firstThursday.getTime()) / 86400000;\n  const week = 1 + Math.round(diff / 7);\n  return `${target.getFullYear()}-W${String(week).padStart(2, 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