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Environment

Default environment variables​

lets has builtin environ variables which user can override before lets execution. E.g LETS_DEBUG=1 lets test

  • LETS_DEBUG - enable debug messages
  • LETS_CONFIG - changes default lets.yaml file path (e.g. LETS_CONFIG=lets.my.yaml)
  • LETS_CONFIG_DIR - changes path to dir where lets.yaml file placed
  • NO_COLOR - disables colored output. See https://no-color.org/

Environment variables available at command runtime​

  • LETS_COMMAND_NAME - string name of launched command
  • LETS_COMMAND_ARGS - positional arguments for launched command, e.g. for lets run --debug --config=test.ini it will contain --debug --config=test.ini
  • LETS_COMMAND_WORK_DIR - absolute path to work_dir specified in command.
  • LETS_CONFIG - absolute path to lets config file.
  • LETS_CONFIG_DIR - absolute path to lets config file firectory.
  • LETS_SHELL - shell from config or command.
  • LETSOPT_<> - options parsed from command options (docopt string). E.g lets run --env=prod --reload will be LETSOPT_ENV=prod and LETSOPT_RELOAD=true
  • LETSCLI_<> - options which values is a options usage. E.g lets run --env=prod --reload will be LETSCLI_ENV=--env=prod and LETSCLI_RELOAD=--reload

Override command env with -E flag​

You can override environment for command with -E flag:

shell: bash

commands:
  say:
    env:
      NAME: Rick
    cmd: echo Hello ${NAME}

lets say - prints Hello Rick

lets -E NAME=Morty say - prints Hello Morty

Alternatively:

lets --env NAME=Morty say - prints Hello Morty