mirror of
https://github.com/Homebrew/brew.git
synced 2025-07-14 16:09:03 +08:00
58 lines
1.4 KiB
Ruby
58 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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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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require "cli/parser"
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module Homebrew
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module_function
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def __env_args
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Homebrew::CLI::Parser.new do
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usage_banner <<~EOS
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`--env` [<options>]
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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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end
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end
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def __env
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__env_args.parse
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ENV.activate_extensions!
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ENV.deps = ARGV.formulae if superenv?
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ENV.setup_build_environment
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ENV.universal_binary if ARGV.build_universal?
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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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# legacy behavior
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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(args.shell)
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end
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env_keys = build_env_keys(ENV)
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if shell.nil?
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dump_build_env ENV
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else
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env_keys.each do |key|
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puts Utils::Shell.export_value(key, ENV[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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