Class: Belt::CLI::LogsCommand

Inherits:
Object
  • Object
show all
Includes:
AppDetection
Defined in:
lib/belt/cli/logs_command.rb

Constant Summary collapse

COLORS = 
{
  red: "\e[0;31m",
  green: "\e[0;32m",
  yellow: "\e[0;33m",
  blue: "\e[0;34m",
  magenta: "\e[0;35m",
  cyan: "\e[0;36m",
  gray: "\e[0;90m",
  bold: "\e[1m",
  dim: "\e[2m",
  reset: "\e[0m"
}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Methods included from AppDetection

#detect_app_name, #detect_environments, #detect_namespace, #find_contracts_file_path, #find_routes_file_path, #find_schema_file_path, #s3_safe_name

Constructor Details

#initialize(args) ⇒ LogsCommand

Returns a new instance of LogsCommand.



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# File 'lib/belt/cli/logs_command.rb', line 63

def initialize(args)
  @lambda_name = nil
  @env = nil
  @follow = false
  @since = '5m'
  @level = 'INFO'
  @error_mode = false
  @raw = false
  @color = $stdout.tty?
  parse_args(args)
end

Class Method Details

.run(args) ⇒ Object 



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# File 'lib/belt/cli/logs_command.rb', line 24

def self.run(args)
  if args.include?('--help') || args.include?('-h')
    puts usage
    exit 0
  end

  new(args).run
end

.usage ⇒ Object 



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# File 'lib/belt/cli/logs_command.rb', line 33

def self.usage
  <<~USAGE
    Usage: belt logs [lambda] [options]

    View Lambda function logs. Without arguments, tails all Lambdas for the current environment.

    Arguments:
      lambda              Lambda function short name (e.g., api, worker). Optional — shows all if omitted.

    Options:
      -e, --env ENV       Environment (default: BELT_ENV or first detected)
      -f, --follow        Follow logs in real-time
      -s, --since PERIOD  Time range (default: 5m). Examples: 5m, 30m, 1h, 2h
      -l, --level LEVEL   Minimum log level: DEBUG, INFO, WARN, ERROR (default: INFO)
      --error             Show only the most recent error and exit
      --raw               Show raw JSON logs without formatting
      --no-color          Disable colorized output
      -h, --help          Show this help

    Examples:
      belt logs                    # Last 5m of all lambdas (current env)
      belt logs api                # Last 5m of api lambda
      belt logs api -f             # Follow api lambda logs
      belt logs -e prod            # Last 5m of all lambdas in prod
      belt logs api -s 30m         # Last 30 minutes
      belt logs --error            # Show most recent error across all lambdas
      belt logs api --error        # Show most recent error for api lambda
  USAGE
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/belt/cli/logs_command.rb', line 75

def run
  @env ||= detect_environment
  abort 'Error: Cannot determine environment. Pass -e ENV or set BELT_ENV.' unless @env

  @app_name = detect_app_name
  abort 'Error: Cannot determine app name.' unless @app_name

  if @lambda_name
    tail_single(@lambda_name)
  else
    tail_all
  end
end