YAML<->JSON

yaml_json.sh

# JSON -> YAML(PyYAML==3.11 is required)
python -c "import yaml,json; f=open('alpine.json');s=json.load(f);f.close(); f=open('alpine.yaml', 'w');yaml.safe_dump(s, f, default_flow_style=False); f.close()"

# YAML -> JSON
python -c "import yaml,json; f=open('alpine.yaml');s=yaml.load(f);f.close(); print(json.dumps(s, indent=4))" > alpine2.json
# or 
# (jq is required)
python -c "import yaml,json; f=open('alpine.yaml');s=yaml.load(f);f.close(); print(json.dumps(s))"|  jq . > alpine2.json

# JSONの設定ファイルを受けとるCLIとの連携
python -c "import yaml,json; f=open('alpine.yaml');s=yaml.load(f);f.close(); print(json.dumps(s))" | time packer build -