git-stats

#!/usr/bin/env bash
# git-stats — quick overview of git activity across workspace repos
# Usage: git-stats [directory] [--days N]
set -euo pipefail

SEARCH_DIR="${1:-.}"
DAYS=7

# Parse flags
while [[ $# -gt 0 ]]; do
  case "$1" in
    --days) DAYS="$2"; shift 2 ;;
    *) SEARCH_DIR="$1"; shift ;;
  esac
done

SINCE="$(date -d "$DAYS days ago" '+%Y-%m-%d' 2>/dev/null || date -v-${DAYS}d '+%Y-%m-%d')"
TOTAL_COMMITS=0
TOTAL_REPOS=0

echo "📊 Git Stats — last $DAYS days (since $SINCE)"
echo "   Scanning: $(realpath "$SEARCH_DIR")"
echo ""

while IFS= read -r gitdir; do
  repo_dir="$(dirname "$gitdir")"
  repo_name="$(basename "$repo_dir")"
  
  cd "$repo_dir"
  
  # Count commits in period
  commits=$(git log --oneline --since="$SINCE" 2>/dev/null | wc -l | tr -d ' ')
  
  if [[ "$commits" -eq 0 ]]; then
    cd - >/dev/null
    continue
  fi
  
  TOTAL_REPOS=$((TOTAL_REPOS + 1))
  TOTAL_COMMITS=$((TOTAL_COMMITS + commits))
  
  # Get branch and last commit
  branch=$(git branch --show-current 2>/dev/null || echo "detached")
  last_msg=$(git log -1 --format='%s' 2>/dev/null | head -c 60)
  last_date=$(git log -1 --format='%ar' 2>/dev/null)
  
  # Insertions/deletions
  stats=$(git diff --shortstat "$(git log --since="$SINCE" --format='%H' | tail -1)^" HEAD 2>/dev/null || echo "")
  
  echo "  $repo_name ($branch)"
  echo "    $commits commits, last: $last_date"
  echo "    → $last_msg"
  if [[ -n "$stats" ]]; then
    echo "   $stats"
  fi
  echo ""
  
  cd - >/dev/null
done < <(find "$SEARCH_DIR" -maxdepth 3 -name ".git" -type d 2>/dev/null | sort)

echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "  $TOTAL_REPOS active repos, $TOTAL_COMMITS total commits"