check and fix orioledb headers: https://github.com/orioledb/orioledb/pull/550

check-headers.sh

#!/usr/bin/env bash
set -euo pipefail

# Usage:
#   ./check-headers.sh [--fix] [rootdir]
# Examples:
#   ./check-headers.sh
#   ./check-headers.sh --fix .
#   ./check-headers.sh --fix path/to/repo

fix=0
if [ "${1:-}" = "--fix" ]; then
  fix=1
  shift
fi
root="${1:-.}"

bad=0

# Find all .c and .h files
find "$root" -type f \( -name '*.c' -o -name '*.h' \) -print0 |
while IFS= read -r -d '' f; do
  fn="$(basename "$f")"
  expected_ident="contrib/orioledb/${f#./}"

  # ---------------------------
  # Check 3rd line: filename
  # ---------------------------
  line3="$(sed -n '3p' "$f" || true)"
  # Normalize to compare (strip leading "* " and trailing ws)
  hdr_core="$(printf '%s' "$line3" | sed -E 's/^[[:space:]]*\*[[:space:]]*//; s/[[:space:]]+$//')"

  if [ "$hdr_core" != "$fn" ]; then
    if [ $fix -eq 1 ]; then
      # Replace ONLY the filename token, preserve indentation (" *", tabs/spaces) and any trailing text/ws
      # Pattern: ^(indent+*) (filename-token) (tail)
      if sed -i -E "3{s|^([[:space:]]*\*[[:space:]]*)([^[:space:]]+)(.*)$|\1$fn\3|}" "$f"; then
        echo "FIXED [HEADER]: $f"
      else
        echo "FAILED [HEADER]: $f"
        bad=1
      fi
    else
      printf '%s: [HEADER] 3rd line is [%s], expected [%s]\n' "$f" "$hdr_core" "$fn"
      bad=1
    fi
  fi

  # ---------------------------------------
  # Check IDENTIFICATION line + next line
  # ---------------------------------------
  ident_ln="$(awk '/^[[:space:]]*\*[[:space:]]*IDENTIFICATION[[:space:]]*$/{print NR; exit}' "$f" || true)"

  if [ -z "${ident_ln:-}" ]; then
    printf '%s: [IDENT]   missing IDENTIFICATION line\n' "$f"
    bad=1
  else
    next_ln=$((ident_ln + 1))
    next_line="$(sed -n "${next_ln}p" "$f" || true)"
    # Normalize to compare (strip leading "* " and trailing ws)
    id_core="$(printf '%s' "$next_line" | sed -E 's/^[[:space:]]*\*[[:space:]]*//; s/[[:space:]]+$//')"

    if [ "$id_core" != "$expected_ident" ]; then
      if [ $fix -eq 1 ]; then
        # Replace ONLY the content after leading "* ...", keep indentation and trailing ws
        # Pattern: ^(indent+*) (any) (trailing ws)
        if sed -i -E "${next_ln}s|^([[:space:]]*\*[[:space:]]*)(.*?)([[:space:]]*)$|\1${expected_ident}\3|" "$f"; then
          echo "FIXED [IDENT]:  $f"
        else
          echo "FAILED [IDENT]: $f"
          bad=1
        fi
      else
        printf '%s: [IDENT]   got [%s], expected [%s]\n' "$f" "$id_core" "$expected_ident"
        bad=1
      fi
    fi
  fi
done

exit "$bad"