quick-commit

#!/usr/bin/env bash
# quick-commit — stage, auto-commit with a good message, push
# Usage: quick-commit [message]
#   With message: uses your message
#   Without: generates one from the diff
set -euo pipefail

# Ensure we're in a git repo
git rev-parse --is-inside-work-tree >/dev/null 2>&1 || { echo "ERROR: not in a git repo" >&2; exit 1; }

# Stage all changes
git add -A

# Check there's something to commit
if git diff --cached --quiet; then
  echo "Nothing to commit — working tree clean"
  exit 0
fi

# Get or generate commit message
if [[ $# -gt 0 ]]; then
  MSG="$*"
else
  # Generate from diff summary
  STAT=$(git diff --cached --stat)
  FILES_CHANGED=$(git diff --cached --name-only)
  NUM_FILES=$(echo "$FILES_CHANGED" | wc -l)
  
  # Detect patterns
  NEW_FILES=$(git diff --cached --diff-filter=A --name-only)
  DELETED_FILES=$(git diff --cached --diff-filter=D --name-only)
  MODIFIED_FILES=$(git diff --cached --diff-filter=M --name-only)
  
  # Build a sensible message
  PARTS=()
  
  if [[ -n "$NEW_FILES" ]]; then
    NEW_COUNT=$(echo "$NEW_FILES" | wc -l)
    if [[ $NEW_COUNT -eq 1 ]]; then
      PARTS+=("add $(echo "$NEW_FILES" | head -1)")
    else
      PARTS+=("add $NEW_COUNT new files")
    fi
  fi
  
  if [[ -n "$DELETED_FILES" ]]; then
    DEL_COUNT=$(echo "$DELETED_FILES" | wc -l)
    if [[ $DEL_COUNT -eq 1 ]]; then
      PARTS+=("remove $(echo "$DELETED_FILES" | head -1)")
    else
      PARTS+=("remove $DEL_COUNT files")
    fi
  fi
  
  if [[ -n "$MODIFIED_FILES" ]]; then
    MOD_COUNT=$(echo "$MODIFIED_FILES" | wc -l)
    if [[ $MOD_COUNT -eq 1 ]]; then
      PARTS+=("update $(echo "$MODIFIED_FILES" | head -1)")
    elif [[ $MOD_COUNT -le 3 ]]; then
      PARTS+=("update $(echo "$MODIFIED_FILES" | tr '\n' ', ' | sed 's/,$//')")
    else
      PARTS+=("update $MOD_COUNT files")
    fi
  fi
  
  if [[ ${#PARTS[@]} -eq 0 ]]; then
    MSG="update"
  else
    MSG=$(IFS='; '; echo "${PARTS[*]}")
  fi
fi

# Commit
git commit -m "$MSG"

# Push if upstream exists
if git rev-parse --abbrev-ref --symbolic-full-name @{upstream} >/dev/null 2>&1; then
  git push
  echo "✓ Committed and pushed: $MSG"
else
  echo "✓ Committed (no upstream to push): $MSG"
fi