1  #!/usr/bin/env bash
 2  set -euo pipefail
 3  
 4  BASE_REF="${1:-origin/master}"
 5  
 6  if ! git rev-parse --verify "$BASE_REF" >/dev/null 2>&1; then
 7    echo "ERROR: base ref '$BASE_REF' does not exist" >&2
 8    exit 1
 9  fi
10  
11  changed_files="$(git diff --name-only "$BASE_REF"...HEAD)"
12  
13  if [ -z "$changed_files" ]; then
14    exit 0
15  fi
16  
17  behavior_changed=false
18  for path in SKILL.md README.md references/workflow.md; do
19    if printf '%s\n' "$changed_files" | rg -qx "$path"; then
20      behavior_changed=true
21      break
22    fi
23  done
24  
25  if [ "$behavior_changed" = false ]; then
26    exit 0
27  fi
28  
29  if ! printf '%s\n' "$changed_files" | rg -qx 'VERSION'; then
30    echo "ERROR: VERSION must change when behavior-contract files change" >&2
31    exit 1
32  fi
33  
34  required_contract_files=(
35    "SKILL.md"
36    "README.md"
37    "references/workflow.md"
38  )
39  
40  missing_files=()
41  for path in "${required_contract_files[@]}"; do
42    if ! printf '%s\n' "$changed_files" | rg -qx "$path"; then
43      missing_files+=("$path")
44    fi
45  done
46  
47  if [ "${#missing_files[@]}" -gt 0 ]; then
48    printf 'ERROR: behavior-contract changes must update all contract files together. Missing:%s\n' "" >&2
49    for path in "${missing_files[@]}"; do
50      printf '  - %s\n' "$path" >&2
51    done
52    exit 1
53  fi
54  
55  exit 0