78 lines
2.2 KiB
Ruby
78 lines
2.2 KiB
Ruby
# typed: strict
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# frozen_string_literal: true
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module Utils
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# Helpers for `brew services` related code.
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module Service
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# Check if a service is running for a specified formula.
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sig { params(formula: Formula).returns(T::Boolean) }
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def self.running?(formula)
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if launchctl?
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quiet_system(launchctl, "list", formula.plist_name)
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elsif systemctl?
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quiet_system(systemctl, "is-active", "--quiet", formula.service_name)
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end
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end
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# Check if a service file is installed in the expected location.
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sig { params(formula: Formula).returns(T::Boolean) }
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def self.installed?(formula)
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(launchctl? && formula.launchd_service_path.exist?) ||
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(systemctl? && formula.systemd_service_path.exist?)
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end
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# Path to launchctl binary.
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sig { returns(T.nilable(Pathname)) }
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def self.launchctl
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return @launchctl if defined? @launchctl
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return if ENV["HOMEBREW_TEST_GENERIC_OS"]
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@launchctl = T.let(which("launchctl"), T.nilable(Pathname))
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end
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# Path to systemctl binary.
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sig { returns(T.nilable(Pathname)) }
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def self.systemctl
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return @systemctl if defined? @systemctl
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return if ENV["HOMEBREW_TEST_GENERIC_OS"]
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@systemctl = T.let(which("systemctl"), T.nilable(Pathname))
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end
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sig { returns(T::Boolean) }
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def self.launchctl?
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!launchctl.nil?
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end
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sig { returns(T::Boolean) }
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def self.systemctl?
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!systemctl.nil?
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end
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# Quote a string for use in systemd command lines, e.g., in `ExecStart`.
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# https://www.freedesktop.org/software/systemd/man/latest/systemd.syntax.html#Quoting
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sig { params(str: String).returns(String) }
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def self.systemd_quote(str)
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result = +"\""
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# No need to escape single quotes and spaces, as we're always double
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# quoting the entire string.
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str.each_char do |char|
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result << case char
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when "\a" then "\\a"
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when "\b" then "\\b"
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when "\f" then "\\f"
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when "\n" then "\\n"
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when "\r" then "\\r"
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when "\t" then "\\t"
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when "\v" then "\\v"
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when "\\" then "\\\\"
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when "\"" then "\\\""
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else char
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end
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end
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result << "\""
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result.freeze
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end
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end
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end
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