58 lines
1.6 KiB
Ruby
58 lines
1.6 KiB
Ruby
# typed: strict
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# frozen_string_literal: true
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require "abstract_command"
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require "extend/ENV"
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require "build_environment"
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require "utils/shell"
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module Homebrew
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module Cmd
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class Env < AbstractCommand
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sig { override.returns(String) }
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def self.command_name = "--env"
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cmd_args do
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description <<~EOS
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Summarise Homebrew's build environment as a plain list.
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If the command's output is sent through a pipe and no shell is specified,
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the list is formatted for export to `bash`(1) unless `--plain` is passed.
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EOS
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flag "--shell=",
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description: "Generate a list of environment variables for the specified shell, " \
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"or `--shell=auto` to detect the current shell."
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switch "--plain",
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description: "Generate plain output even when piped."
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named_args :formula
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end
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sig { override.void }
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def run
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ENV.activate_extensions!
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ENV.deps = args.named.to_formulae if superenv?(nil)
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ENV.setup_build_environment
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shell = if args.plain?
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nil
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elsif args.shell.nil?
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:bash unless $stdout.tty?
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elsif args.shell == "auto"
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Utils::Shell.parent || Utils::Shell.preferred
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elsif args.shell
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Utils::Shell.from_path(T.must(args.shell))
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end
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if shell.nil?
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BuildEnvironment.dump ENV.to_h
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else
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BuildEnvironment.keys(ENV.to_h).each do |key|
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puts Utils::Shell.export_value(key, ENV.fetch(key), shell)
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end
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end
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end
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end
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end
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end
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