224864b149
This enhances the Java requirement to support prompting the user to install the correct legacy Java version via Cask for formulae that don't yet work with the latest version of Java. Previously, even if the formula had a strict requirement that a specific, older version of Java be used, the messaging would tell the user to `brew cask install java` (i.e. to install the latest version of Java), which wouldn't actually satisfy the requirement.
55 lines
1.5 KiB
Ruby
55 lines
1.5 KiB
Ruby
class JavaRequirement < Requirement
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env do
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env_java_common
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env_oracle_jdk || env_apple
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end
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# A strict Java 8 requirement (1.8) should prompt the user to install
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# the legacy java8 cask because the current version, Java 9, is not
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# completely backwards compatible, and contains breaking changes such as
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# strong encapsulation of JDK-internal APIs and a modified version scheme
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# (9.0 not 1.9).
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def cask
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if @version.nil? || @version.to_s.end_with?("+") ||
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@version.to_f >= JAVA_CASK_MAP.keys.max.to_f
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JAVA_CASK_MAP.fetch(JAVA_CASK_MAP.keys.max)
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else
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JAVA_CASK_MAP.fetch("1.8")
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end
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end
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private
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JAVA_CASK_MAP = {
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"1.8" => "caskroom/versions/java8",
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"9.0" => "java",
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}.freeze
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def possible_javas
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javas = []
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javas << Pathname.new(ENV["JAVA_HOME"])/"bin/java" if ENV["JAVA_HOME"]
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javas << java_home_cmd
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which_java = which("java")
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# /usr/bin/java is a stub on macOS
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javas << which_java if which_java.to_s != "/usr/bin/java"
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javas
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end
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def java_home_cmd
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return nil unless File.executable?("/usr/libexec/java_home")
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args = %w[--failfast]
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args << "--version" << @version.to_s if @version
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java_home = Utils.popen_read("/usr/libexec/java_home", *args).chomp
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return nil unless $CHILD_STATUS.success?
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Pathname.new(java_home)/"bin/java"
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end
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def env_apple
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ENV.append_to_cflags "-I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/"
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end
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def oracle_java_os
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:darwin
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end
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end
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