Class: Formula Abstract

Inherits:
Object
  • Object
show all
Extended by:
BuildEnvironment::DSL, Enumerable, Forwardable
Includes:
FileUtils, Utils::Inreplace, Utils::Shell
Defined in:
Library/Homebrew/formula.rb

Overview

This class is abstract.

A formula provides instructions and metadata for Homebrew to install a piece of software. Every Homebrew formula is a Formula. All subclasses of Formula (and all Ruby classes) have to be named `UpperCase` and `not-use-dashes`. A formula specified in `this-formula.rb` should have a class named `ThisFormula`. Homebrew does enforce that the name of the file and the class correspond. Make sure you check with `brew search` that the name is free! <pre>class Wget < Formula

homepage "https://www.gnu.org/software/wget/"
url "https://ftp.gnu.org/gnu/wget/wget-1.15.tar.gz"
sha256 "52126be8cf1bddd7536886e74c053ad7d0ed2aa89b4b630f76785bac21695fcd"

def install
  system "./configure", "--prefix=#{prefix}"
  system "make", "install"
end

end</pre>

See Also:

Constant Summary

Constants included from Utils::Shell

Utils::Shell::SHELL_PROFILE_MAP, Utils::Shell::UNSAFE_SHELL_CHAR

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Utils::Shell

csh_quote, export_value, from_path, parent, preferred, prepend_path_in_profile, profile, sh_quote

Methods included from Utils::Inreplace

inreplace

Methods included from FileUtils

#make, mkdir, mktemp, #old_mkdir, #old_ruby, #ruby, #scons, #xcodebuild

Constructor Details

#initialize(name, path, spec, alias_path: nil) ⇒ Formula

Returns a new instance of Formula.


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# File 'Library/Homebrew/formula.rb', line 171

def initialize(name, path, spec, alias_path: nil)
  @name = name
  @path = path
  @alias_path = alias_path
  @alias_name = File.basename(alias_path) if alias_path
  @revision = self.class.revision || 0
  @version_scheme = self.class.version_scheme || 0

  @tap = if path == Formulary.core_path(name)
    CoreTap.instance
  elsif match = path.to_s.match(HOMEBREW_TAP_PATH_REGEX)
    Tap.fetch(match[:user], match[:repo])
  end

  @full_name = full_name_with_optional_tap(name)
  @full_alias_name = full_name_with_optional_tap(@alias_name)

  spec_eval :stable
  spec_eval :devel
  spec_eval :head

  @active_spec = determine_active_spec(spec)
  @active_spec_sym = if head?
    :head
  elsif devel?
    :devel
  else
    :stable
  end
  validate_attributes!
  @build = active_spec.build
  @pin = FormulaPin.new(self)
  @follow_installed_alias = true
  @prefix_returns_versioned_prefix = false
end

Class Attribute Details

.bottle(*args, &block) ⇒ Object

Adds a bottle SoftwareSpec. This provides a pre-built binary package built by the Homebrew maintainers for you. It will be installed automatically if there is a binary package for your platform and you haven't passed or previously used any options on this formula.

If you maintain your own repository, you can add your own bottle links. docs.brew.sh/Bottles.html You can ignore this block entirely if submitting to Homebrew/homebrew-core. It'll be handled for you by the Brew Test Bot.

<pre>bottle do

root_url "https://example.com" # Optional root to calculate bottle URLs
prefix "/opt/homebrew" # Optional HOMEBREW_PREFIX in which the bottles were built.
cellar "/opt/homebrew/Cellar" # Optional HOMEBREW_CELLAR in which the bottles were built.
rebuild 1 # Making the old bottle outdated without bumping the version/revision of the formula.
sha256 "4355a46b19d348dc2f57c046f8ef63d4538ebb936000f3c9ee954a27460dd865" => :el_capitan
sha256 "53c234e5e8472b6ac51c1ae1cab3fe06fad053beb8ebfd8977b010655bfdd3c3" => :yosemite
sha256 "1121cfccd5913f0a63fec40a6ffd44ea64f9dc135c66634ba001d10bcf4302a2" => :mavericks

end</pre>

Only formulae where the upstream URL breaks or moves frequently, require compile or have a reasonable amount of patches/resources should be bottled. Formulae which do not meet the above requirements should not be bottled.

Formulae which should not be bottled & can be installed without any compile required should be tagged with: <pre>bottle :unneeded</pre>

Otherwise formulae which do not meet the above requirements and should not be bottled should be tagged with: <pre>bottle :disable, “reasons”</pre>


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# File 'Library/Homebrew/formula.rb', line 2085

def bottle(*args, &block)
  stable.bottle(*args, &block)
end

.deprecated_option(hash) ⇒ Object

Deprecated options are used to rename options and migrate users who used them to newer ones. They are mostly used for migrating non-`with` options (e.g. `enable-debug`) to `with` options (e.g. `with-debug`). <pre>deprecated_option “enable-debug” => “with-debug”</pre>


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# File 'Library/Homebrew/formula.rb', line 2236

def deprecated_option(hash)
  specs.each { |spec| spec.deprecated_option(hash) }
end

.desc=(value) ⇒ Object (writeonly)

A one-line description of the software. Used by users to get an overview of the software and Homebrew maintainers. Shows when running `brew info`.

<pre>desc “Example formula”</pre>


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# File 'Library/Homebrew/formula.rb', line 1947

attr_rw :desc

.devel(&block) ⇒ Object

Adds a devel SoftwareSpec. This can be installed by passing the `–devel` option to allow installing non-stable (e.g. beta) versions of software.

<pre>devel do

url "https://example.com/archive-2.0-beta.tar.gz"
sha256 "2a2ba417eebaadcb4418ee7b12fe2998f26d6e6f7fda7983412ff66a741ab6f7"

depends_on "cairo"
depends_on "pixman"

end</pre>


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# File 'Library/Homebrew/formula.rb', line 2124

def devel(&block)
  @devel ||= SoftwareSpec.new
  return @devel unless block_given?
  @devel.instance_eval(&block)
end

.head(val = nil, specs = {}, &block) ⇒ Object

Adds a head SoftwareSpec. This can be installed by passing the `–HEAD` option to allow installing software directly from a branch of a version-control repository. If called as a method this provides just the url for the SoftwareSpec. If a block is provided you can also add depends_on and #patches just to the head SoftwareSpec. The download strategies (e.g. `:using =>`) are the same as for url. `master` is the default branch and doesn't need stating with a `:branch` parameter. <pre>head “we.prefer.https.over.git.example.com/.git”> <pre>head “example.com/.git”, :branch => “name_of_branch”, :revision => “abc123”</pre> or (if autodetect fails): <pre>head “hg.is.awesome.but.git.has.won.example.com/”, :using => :hg</pre>


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# File 'Library/Homebrew/formula.rb', line 2142

def head(val = nil, specs = {}, &block)
  @head ||= HeadSoftwareSpec.new
  if block_given?
    @head.instance_eval(&block)
  elsif val
    @head.url(val, specs)
  else
    @head
  end
end

.homepage=(value) ⇒ Object (writeonly)

The homepage for the software. Used by users to get more information about the software and Homebrew maintainers as a point of contact for e.g. submitting patches. Can be opened with running `brew home`.

<pre>homepage “www.example.com”>


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# File 'Library/Homebrew/formula.rb', line 1956

attr_rw :homepage

.keg_only_reason ⇒ Object (readonly)

The reason for why this software is not linked (by default) to HOMEBREW_PREFIX.


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# File 'Library/Homebrew/formula.rb', line 1939

def keg_only_reason
  @keg_only_reason
end

.mirror(val) ⇒ Object

Additional URLs for the #stable version of the formula. These are only used if the url fails to download. It's optional and there can be more than one. Generally we add them when the main url is unreliable. If url is really unreliable then we may swap the mirror and url.

<pre>mirror “in.case.the.host.is.down.example.com” mirror “in.case.the.mirror.is.down.example.com>


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# File 'Library/Homebrew/formula.rb', line 2037

def mirror(val)
  stable.mirror(val)
end

.option(name, description = "") ⇒ Object

Options can be used as arguments to `brew install`. To switch features on/off: `“with-something”` or `“with-otherthing”`. To use other software: `“with-other-software”` or `“without-foo”` Note, that for depends_on that are `:optional` or `:recommended`, options are generated automatically.

There are also some special options:

  • `:universal`: build a universal binary/library (e.g. on newer Intel Macs this means a combined x86_64/x86 binary/library).

<pre>option “with-spam”, “The description goes here without a dot at the end”</pre> <pre>option “with-qt”, “Text here overwrites the autogenerated one from 'depends_on ”qt“ => :optional'”</pre> <pre>option :universal</pre>


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# File 'Library/Homebrew/formula.rb', line 2227

def option(name, description = "")
  specs.each { |spec| spec.option(name, description) }
end

.plist_manual ⇒ Object (readonly)

The `:manual` attribute set by plist_options.


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# File 'Library/Homebrew/formula.rb', line 1964

def plist_manual
  @plist_manual
end

.plist_startup ⇒ Object (readonly)

The `:startup` attribute set by plist_options.


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# File 'Library/Homebrew/formula.rb', line 1960

def plist_startup
  @plist_startup
end

.pour_bottle_check_unsatisfied_reason ⇒ Object

If `pour_bottle?` returns `false` the user-visible reason to display for why they cannot use the bottle.


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# File 'Library/Homebrew/formula.rb', line 1969

def pour_bottle_check_unsatisfied_reason
  @pour_bottle_check_unsatisfied_reason
end

.revision=(value) ⇒ Object (writeonly)

Used for creating new Homebrew versions of software without new upstream versions. For example, if we bump the major version of a library this Formula depends_on then we may need to update the `revision` of this Formula to install a new version linked against the new library version. `0` if unset.

<pre>revision 1</pre>


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# File 'Library/Homebrew/formula.rb', line 1979

attr_rw :revision

.sha256=(value) ⇒ Object (writeonly)

To verify the #cached_download's integrity and security we verify the SHA-256 hash matches what we've declared in the Formula. To quickly fill this value you can leave it blank and run `brew fetch –force` and it'll tell you the currently valid value.

<pre>sha256 “2a2ba417eebaadcb4418ee7b12fe2998f26d6e6f7fda7983412ff66a741ab6f7”</pre>


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# File 'Library/Homebrew/formula.rb', line 2049

Checksum::TYPES.each do |type|
  define_method(type) { |val| stable.send(type, val) }
end

.stable(&block) ⇒ Object

Allows adding depends_on and #patches just to the stable SoftwareSpec. This is required instead of using a conditional. It is preferrable to also pull the url and sha256 into the block if one is added.

<pre>stable do

url "https://example.com/foo-1.0.tar.gz"
sha256 "2a2ba417eebaadcb4418ee7b12fe2998f26d6e6f7fda7983412ff66a741ab6f7"

depends_on "libxml2"
depends_on "libffi"

end</pre>


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# File 'Library/Homebrew/formula.rb', line 2106

def stable(&block)
  @stable ||= SoftwareSpec.new
  return @stable unless block_given?
  @stable.instance_eval(&block)
end

.url(val, specs = {}) ⇒ Object

The URL used to download the source for the #stable version of the formula. We prefer `https` for security and proxy reasons. If not inferrable, specify the download strategy with `:using => …`

`:git`, `:hg`, `:svn`, `:bzr`, `:cvs`,
`:curl` (normal file download. Will also extract.)
`:nounzip` (without extracting)
`:post` (download via an HTTP POST)
`S3DownloadStrategy` (download from S3 using signed request)

<pre>url “packed.sources.and.we.prefer.https.example.com/archive-1.2.3.tar.bz2”> <pre>url “some.dont.provide.archives.example.com”,

:using => :git,
:tag => "1.2.3",
:revision => "db8e4de5b2d6653f66aea53094624468caad15d2"</pre>


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# File 'Library/Homebrew/formula.rb', line 2014

def url(val, specs = {})
  stable.url(val, specs)
end

.version(val = nil) ⇒ Object

The version string for the #stable version of the formula. The version is autodetected from the URL and/or tag so only needs to be declared if it cannot be autodetected correctly.

<pre>version “1.2-final”</pre>


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# File 'Library/Homebrew/formula.rb', line 2024

def version(val = nil)
  stable.version(val)
end

.version_scheme=(value) ⇒ Object (writeonly)

Used for creating new Homebrew versions schemes. For example, if we want to change version scheme from one to another, then we may need to update `version_scheme` of this Formula to be able to use new version scheme. E.g. to move from 20151020 scheme to 1.0.0 we need to increment `version_scheme`. Without this, the prior scheme will always equate to a higher version. `0` if unset.

<pre>version_scheme 1</pre>


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# File 'Library/Homebrew/formula.rb', line 1991

attr_rw :version_scheme

Instance Attribute Details

#active_log_type ⇒ Object (readonly)

When performing a build, test, or other loggable action, indicates which log file location to use.


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# File 'Library/Homebrew/formula.rb', line 154

def active_log_type
  @active_log_type
end

#active_spec=(spec_sym) ⇒ Object

Raises:


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# File 'Library/Homebrew/formula.rb', line 208

def active_spec=(spec_sym)
  spec = send(spec_sym)
  raise FormulaSpecificationError, "#{spec_sym} spec is not available for #{full_name}" unless spec
  @active_spec = spec
  @active_spec_sym = spec_sym
  validate_attributes!
  @build = active_spec.build
end

#active_spec_sym ⇒ Object (readonly)

A symbol to indicate currently active SoftwareSpec. It's either :stable, :devel or :head

See Also:

  • #active_spec

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# File 'Library/Homebrew/formula.rb', line 124

def active_spec_sym
  @active_spec_sym
end

#alias_name ⇒ Object (readonly)

The name of the alias that was used to identify this Formula. e.g. `another-name-for-this-formula`


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# File 'Library/Homebrew/formula.rb', line 72

def alias_name
  @alias_name
end

#alias_path ⇒ Object (readonly)

The path to the alias that was used to identify this Formula. e.g. `/usr/local/Library/Taps/homebrew/homebrew-core/Aliases/another-name-for-this-formula`


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# File 'Library/Homebrew/formula.rb', line 68

def alias_path
  @alias_path
end

#build ⇒ BuildOptions

The BuildOptions for this Formula. Lists the arguments passed and any #options in the Formula. Note that these may differ at different times during the installation of a Formula. This is annoying but the result of state that we're trying to eliminate.

Returns:


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# File 'Library/Homebrew/formula.rb', line 161

def build
  @build
end

#buildpath ⇒ Object (readonly)

The current working directory during builds. Will only be non-`nil` inside #install.


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# File 'Library/Homebrew/formula.rb', line 140

def buildpath
  @buildpath
end

#devel ⇒ Object (readonly)

The development SoftwareSpec for this Formula. Installed when using `brew install –devel` `nil` if there is no development version.

See Also:


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# File 'Library/Homebrew/formula.rb', line 104

def devel
  @devel
end

#follow_installed_alias ⇒ Boolean Also known as: follow_installed_alias?

A Boolean indicating whether this formula should be considered outdated if the target of the alias it was installed with has since changed. Defaults to true.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 167

def follow_installed_alias
  @follow_installed_alias
end

#full_alias_name ⇒ Object (readonly)

The fully-qualified alias referring to this Formula. For core formula it's the same as #alias_name. e.g. `homebrew/tap-name/another-name-for-this-formula`


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# File 'Library/Homebrew/formula.rb', line 82

def full_alias_name
  @full_alias_name
end

#full_name ⇒ Object (readonly)

The fully-qualified name of this Formula. For core formula it's the same as #name. e.g. `homebrew/tap-name/this-formula`


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# File 'Library/Homebrew/formula.rb', line 77

def full_name
  @full_name
end

#head ⇒ Object (readonly)

The HEAD SoftwareSpec for this Formula. Installed when using `brew install –HEAD` This is always installed with the version `HEAD` and taken from the latest commit in the version control system. `nil` if there is no HEAD version.

See Also:


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# File 'Library/Homebrew/formula.rb', line 113

def head
  @head
end

#local_bottle_path ⇒ Object

When installing a bottle (binary package) from a local path this will be set to the full path to the bottle tarball. If not, it will be `nil`.


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# File 'Library/Homebrew/formula.rb', line 149

def local_bottle_path
  @local_bottle_path
end

#name ⇒ Object (readonly)

The name of this Formula. e.g. `this-formula`


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# File 'Library/Homebrew/formula.rb', line 64

def name
  @name
end

#path ⇒ Object (readonly)

The full path to this Formula. e.g. `/usr/local/Library/Taps/homebrew/homebrew-core/Formula/this-formula.rb`


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# File 'Library/Homebrew/formula.rb', line 86

def path
  @path
end

#revision ⇒ Object (readonly)

Used for creating new Homebrew versions of software without new upstream versions.

See Also:


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# File 'Library/Homebrew/formula.rb', line 133

def revision
  @revision
end

#source_modified_time ⇒ Object (readonly)

most recent modified time for source files


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# File 'Library/Homebrew/formula.rb', line 128

def source_modified_time
  @source_modified_time
end

#stable ⇒ Object (readonly)

The stable (and default) SoftwareSpec for this Formula This contains all the attributes (e.g. URL, checksum) that apply to the stable version of this formula.


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# File 'Library/Homebrew/formula.rb', line 97

def stable
  @stable
end

#tap ⇒ Object (readonly)

The Tap instance associated with this Formula. If it's nil, then this formula is loaded from path or URL.


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# File 'Library/Homebrew/formula.rb', line 91

def tap
  @tap
end

#testpath ⇒ Object (readonly)

The current working directory during tests. Will only be non-`nil` inside #test.


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# File 'Library/Homebrew/formula.rb', line 144

def testpath
  @testpath
end

#version_scheme ⇒ Object (readonly)

Used to change version schemes for packages


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# File 'Library/Homebrew/formula.rb', line 136

def version_scheme
  @version_scheme
end

Class Method Details

.[](name) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1440

def self.[](name)
  Formulary.factory(name)
end

.alias_full_names ⇒ Object

an array of all aliases, , which the tap formulae have the fully-qualified name


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# File 'Library/Homebrew/formula.rb', line 1424

def self.alias_full_names
  @alias_full_names ||= core_aliases + tap_aliases
end

.aliases ⇒ Object

an array of all aliases


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# File 'Library/Homebrew/formula.rb', line 1418

def self.aliases
  @aliases ||= (core_aliases + tap_aliases.map { |name| name.split("/")[-1] }).uniq.sort
end

.build ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2090

def build
  stable.build
end

.clear_installed_formulae_cache ⇒ Object

Clear caches of .racks and .installed.


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# File 'Library/Homebrew/formula.rb', line 1364

def self.clear_installed_formulae_cache
  clear_racks_cache
  @installed = nil
end

.clear_racks_cache ⇒ Object

Clear cache of .racks


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# File 'Library/Homebrew/formula.rb', line 1359

def self.clear_racks_cache
  @racks = nil
end

.conflicts ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2290

def conflicts
  @conflicts ||= []
end

.conflicts_with(*names) ⇒ Object

If this formula conflicts with another one. <pre>conflicts_with “imagemagick”, :because => “because both install 'convert' binaries”</pre>


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# File 'Library/Homebrew/formula.rb', line 2296

def conflicts_with(*names)
  opts = names.last.is_a?(Hash) ? names.pop : {}
  names.each { |name| conflicts << FormulaConflict.new(name, opts[:because]) }
end

.core_alias_files ⇒ Object

an array of all alias files of core Formula


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# File 'Library/Homebrew/formula.rb', line 1400

def self.core_alias_files
  CoreTap.instance.alias_files
end

.core_alias_reverse_table ⇒ Object

a table mapping core formula name to aliases


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# File 'Library/Homebrew/formula.rb', line 1436

def self.core_alias_reverse_table
  CoreTap.instance.alias_reverse_table
end

.core_alias_table ⇒ Object

a table mapping core alias to formula name


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# File 'Library/Homebrew/formula.rb', line 1430

def self.core_alias_table
  CoreTap.instance.alias_table
end

.core_aliases ⇒ Object

an array of all core aliases


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# File 'Library/Homebrew/formula.rb', line 1406

def self.core_aliases
  CoreTap.instance.aliases
end

.core_files ⇒ Object

an array of all core Formula files


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# File 'Library/Homebrew/formula.rb', line 1310

def self.core_files
  CoreTap.instance.formula_files
end

.core_names ⇒ Object

an array of all core Formula names


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# File 'Library/Homebrew/formula.rb', line 1304

def self.core_names
  CoreTap.instance.formula_names
end

.cxxstdlib_check(check_type) ⇒ Object

Pass :skip to this method to disable post-install stdlib checking


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# File 'Library/Homebrew/formula.rb', line 2325

def cxxstdlib_check(check_type)
  define_method(:skip_cxxstdlib_check?) { true } if check_type == :skip
end

.depends_on(dep) ⇒ Object

The dependencies for this formula. Use strings for the names of other formulae. Homebrew provides some :special dependencies for stuff that requires certain extra handling (often changing some ENV vars or deciding if to use the system provided version or not.) <pre># `:build` means this dep is only needed during build. depends_on “cmake” => :build</pre> <pre>depends_on “homebrew/dupes/tcl-tk” => :optional</pre> <pre># `:recommended` dependencies are built by default. # But a `–without-…` option is generated to opt-out. depends_on “readline” => :recommended</pre> <pre># `:optional` dependencies are NOT built by default. # But a `–with-…` options is generated. depends_on “glib” => :optional</pre> <pre># If you need to specify that another formula has to be built with/out # certain options (note, no `–` needed before the option): depends_on “zeromq” => “with-pgm” depends_on “qt” => [“with-qtdbus”, “developer”] # Multiple options.</pre> <pre># Optional and enforce that boost is built with `–with-c++11`. depends_on “boost” => [:optional, “with-c++11”]</pre> <pre># If a dependency is only needed in certain cases: depends_on “sqlite” if MacOS.version == :leopard depends_on :xcode # If the formula really needs full Xcode. depends_on :macos => :lion # Needs at least OS X Lion (10.7). depends_on :arch => :intel # If this formula only builds on Intel architecture. depends_on :arch => :x86_64 # If this formula only builds on Intel x86 64-bit. depends_on :arch => :ppc # Only builds on PowerPC? depends_on :ld64 # Sometimes ld fails on `MacOS.version < :leopard`. Then use this. depends_on :x11 => :optional # X11/XQuartz components. depends_on :osxfuse # Permits the use of the upstream signed binary or our source package. depends_on :tuntap # Does the same thing as above. This is vital for Yosemite and above. <pre># It is possible to only depend on something if # `build.with?` or `build.without? “another_formula”`: depends_on “postgresql” if build.without? “sqlite”

<pre># Python 2.7: depends_on “python”</pre> <pre># Python 2.7 but use system Python where possible depends_on “python” if MacOS.version <= :snow_leopard</pre> <pre># Python 3.x if the `–with-python3` is given to `brew install example` depends_on “python3” => :optional</pre>


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# File 'Library/Homebrew/formula.rb', line 2210

def depends_on(dep)
  specs.each { |spec| spec.depends_on(dep) }
end

.each ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1345

def self.each
  files.each do |file|
    begin
      yield Formulary.factory(file)
    rescue StandardError => e      # Don't let one broken formula break commands. But do complain.

      onoe "Failed to import: #{file}"
      puts e
      next
    end
  end
end

.fails_with(compiler, &block) ⇒ Object

Marks the Formula as failing with a particular compiler so it will fall back to others. For Apple compilers, this should be in the format: <pre>fails_with :clang do

build 600
cause "multiple configure and compile errors"

end</pre>

The block may be omitted, and if present the build may be omitted; if so, then the compiler will be blacklisted for all versions.

`major_version` should be the major release number only, for instance '4.8' for the GCC 4.8 series (4.8.0, 4.8.1, etc.). If `version` or the block is omitted, then the compiler will be blacklisted for all compilers in that series.

For example, if a bug is only triggered on GCC 4.8.1 but is not encountered on 4.8.2:

<pre>fails_with :gcc => '4.8' do

version '4.8.1'

end</pre>


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# File 'Library/Homebrew/formula.rb', line 2350

def fails_with(compiler, &block)
  odeprecated "fails_with :llvm" if compiler == :llvm
  specs.each { |spec| spec.fails_with(compiler, &block) }
end

.files ⇒ Object

an array of all Formula files


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# File 'Library/Homebrew/formula.rb', line 1334

def self.files
  @files ||= core_files + tap_files
end

.full_names ⇒ Object

an array of all Formula names, which the tap formulae have the fully-qualified name


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# File 'Library/Homebrew/formula.rb', line 1340

def self.full_names
  @full_names ||= core_names + tap_names
end

.go_resource(name, &block) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2166

def go_resource(name, &block)
  specs.each { |spec| spec.go_resource(name, &block) }
end

.installed ⇒ Object

An array of all installed Formula


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# File 'Library/Homebrew/formula.rb', line 1383

def self.installed
  @installed ||= racks.flat_map do |rack|
    begin
      Formulary.from_rack(rack)
    rescue FormulaUnavailableError, TapFormulaAmbiguityError, TapFormulaWithOldnameAmbiguityError
      []
    end
  end.uniq(&:name)
end

.installed_with_alias_path(alias_path) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1393

def self.installed_with_alias_path(alias_path)
  return [] if alias_path.nil?
  installed.select { |f| f.installed_alias_path == alias_path }
end

.keg_only(reason, explanation = "") ⇒ Object

Software that will not be sym-linked into the `brew –prefix` will only live in its Cellar. Other formulae can depend on it and then brew will add the necessary includes and libs (etc.) during the brewing of that other formula. But generally, keg_only formulae are not in your PATH and not seen by compilers if you build your own software outside of Homebrew. This way, we don't shadow software provided by macOS. <pre>keg_only :provided_by_macos</pre> <pre>keg_only “because I want it so”</pre>


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# File 'Library/Homebrew/formula.rb', line 2320

def keg_only(reason, explanation = "")
  @keg_only_reason = KegOnlyReason.new(reason, explanation)
end

.link_overwrite(*paths) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2405

def link_overwrite(*paths)
  paths.flatten!
  link_overwrite_paths.merge(paths)
end

.link_overwrite_paths ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2411

def link_overwrite_paths
  @link_overwrite_paths ||= Set.new
end

.method_added(method) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1917

def method_added(method)
  case method
  when :brew
    raise "You cannot override Formula#brew in class #{name}"
  when :test
    define_method(:test_defined?) { true }
  when :options
    instance = allocate

    specs.each do |spec|
      instance.options.each do |opt, desc|
        spec.option(opt[/^--(.+)$/, 1], desc)
      end
    end

    remove_method(:options)
  end
end

.names ⇒ Object

an array of all Formula names


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# File 'Library/Homebrew/formula.rb', line 1328

def self.names
  @names ||= (core_names + tap_names.map { |name| name.split("/")[-1] }).uniq.sort
end

.needs(*standards) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2355

def needs(*standards)
  specs.each { |spec| spec.needs(*standards) }
end

.patch(strip = :p1, src = nil, &block) ⇒ Object

External patches can be declared using resource-style blocks. <pre>patch do

url "https://example.com/example_patch.diff"
sha256 "c6bc3f48ce8e797854c4b865f6a8ff969867bbcaebd648ae6fd825683e59fef2"

end</pre>

A strip level of `-p1` is assumed. It can be overridden using a symbol argument: <pre>patch :p0 do

url "https://example.com/example_patch.diff"
sha256 "c6bc3f48ce8e797854c4b865f6a8ff969867bbcaebd648ae6fd825683e59fef2"

end</pre>

Patches can be declared in stable, devel, and head blocks. This form is preferred over using conditionals. <pre>stable do

patch do
  url "https://example.com/example_patch.diff"
  sha256 "c6bc3f48ce8e797854c4b865f6a8ff969867bbcaebd648ae6fd825683e59fef2"
end

end</pre>

Embedded (`__END__`) patches are declared like so: <pre>patch :DATA patch :p0, :DATA</pre>

Patches can also be embedded by passing a string. This makes it possible to provide multiple embedded patches while making only some of them conditional. <pre>patch :p0, “…”</pre>


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# File 'Library/Homebrew/formula.rb', line 2270

def patch(strip = :p1, src = nil, &block)
  specs.each { |spec| spec.patch(strip, src, &block) }
end

.plist_options(options) ⇒ Object

Defines launchd plist handling.

Does your plist need to be loaded at startup? <pre>plist_options :startup => true</pre>

Or only when necessary or desired by the user? <pre>plist_options :manual => “foo”</pre>

Or perhaps you'd like to give the user a choice? Ooh fancy. <pre>plist_options :startup => true, :manual => “foo start”</pre>


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# File 'Library/Homebrew/formula.rb', line 2284

def plist_options(options)
  @plist_startup = options[:startup]
  @plist_manual = options[:manual]
end

.pour_bottle?(&block) ⇒ Boolean

Defines whether the Formula's bottle can be used on the given Homebrew installation.

For example, if the bottle requires the Xcode CLT to be installed a Formula would declare: <pre>pour_bottle? do

reason "The bottle needs the Xcode CLT to be installed."
satisfy { MacOS::CLT.installed? }

end</pre>

If `satisfy` returns `false` then a bottle will not be used and instead the Formula will be built from source and `reason` will be printed.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 2399

def pour_bottle?(&block)
  @pour_bottle_check = PourBottleCheck.new(self)
  @pour_bottle_check.instance_eval(&block)
end

.racks ⇒ Object

An array of all racks currently installed.


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# File 'Library/Homebrew/formula.rb', line 1371

def self.racks
  @racks ||= if HOMEBREW_CELLAR.directory?
    HOMEBREW_CELLAR.subdirs.reject do |rack|
      rack.symlink? || rack.basename.to_s.start_with?(".") || rack.subdirs.empty?
    end
  else
    []
  end
end

.resource(name, klass = Resource, &block) ⇒ Object

Additional downloads can be defined as resources and accessed in the install method. Resources can also be defined inside a stable, devel, or head block. This mechanism replaces ad-hoc “subformula” classes. <pre>resource “additional_files” do

url "https://example.com/additional-stuff.tar.gz"
sha256 "c6bc3f48ce8e797854c4b865f6a8ff969867bbcaebd648ae6fd825683e59fef2"

end</pre>


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# File 'Library/Homebrew/formula.rb', line 2160

def resource(name, klass = Resource, &block)
  specs.each do |spec|
    spec.resource(name, klass, &block) unless spec.resource_defined?(name)
  end
end

.skip_clean(*paths) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2301

def skip_clean(*paths)
  paths.flatten!  # Specifying :all is deprecated and will become an error

  skip_clean_paths.merge(paths)
end

.skip_clean_paths ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 2308

def skip_clean_paths
  @skip_clean_paths ||= Set.new
end

.specs ⇒ Object

A list of the stable, devel and head SoftwareSpecs.


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# File 'Library/Homebrew/formula.rb', line 1995

def specs
  @specs ||= [stable, devel, head].freeze
end

.tap_aliases ⇒ Object

an array of all tap aliases


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# File 'Library/Homebrew/formula.rb', line 1412

def self.tap_aliases
  @tap_aliases ||= Tap.reject(&:core_tap?).flat_map(&:aliases).sort
end

.tap_files ⇒ Object

an array of all tap Formula files


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# File 'Library/Homebrew/formula.rb', line 1322

def self.tap_files
  @tap_files ||= Tap.reject(&:core_tap?).flat_map(&:formula_files)
end

.tap_names ⇒ Object

an array of all tap Formula names


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# File 'Library/Homebrew/formula.rb', line 1316

def self.tap_names
  @tap_names ||= Tap.reject(&:core_tap?).flat_map(&:formula_names).sort
end

.test(&block) ⇒ Boolean

Test (is required for new formula and makes us happy). The block will create, run in and delete a temporary directory.

We are fine if the executable does not error out, so we know linking and building the software was ok. <pre>system bin/“foobar”, “–version”</pre>

<pre>(testpath/“test.file”).write <<~EOS

writing some test file, if you need to

EOS assert_equal “OK”, shell_output(“test_command test.file”).strip</pre>

Need complete control over stdin, stdout? <pre>require “open3” Open3.popen3(“##bin/example”, “argument”) do |stdin, stdout, _|

stdin.write("some text")
stdin.close
assert_equal "result", stdout.read

end</pre>

The test will fail if it returns false, or if an exception is raised. Failed assertions and failed `system` commands will raise exceptions.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 2383

def test(&block)
  define_method(:test, &block)
end

Instance Method Details

#<=>(other) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1262

def <=>(other)
  return unless other.is_a?(Formula)
  name <=> other.name
end

#==(other) ⇒ Object Also known as: eql? 


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# File 'Library/Homebrew/formula.rb', line 1249

def ==(other)
  instance_of?(other.class) &&
    name == other.name &&
    active_spec == other.active_spec
end

#_outdated_kegs(options = {}) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1144

def _outdated_kegs(options = {})
  all_kegs = []

  installed_kegs.each do |keg|
    all_kegs << keg
    version = keg.version
    next if version.head?

    tab = Tab.for_keg(keg)
    next if version_scheme > tab.version_scheme
    next if version_scheme == tab.version_scheme && pkg_version > version

    # don't consider this keg current if there's a newer formula available
    next if follow_installed_alias? && new_formula_available?

    return [] # this keg is the current version of the formula, so it's not outdated
  end

  # Even if this formula hasn't been installed, there may be installations
  # of other formulae which used to be targets of the alias currently
  # targetting this formula. These should be counted as outdated versions.
  all_kegs.concat old_installed_formulae.flat_map(&:installed_kegs)

  head_version = latest_head_version
  if head_version && !head_version_outdated?(head_version, options)
    []
  else
    all_kegs.sort_by(&:version)
  end
end

#active_log_prefix ⇒ Object

The prefix, if any, to use in filenames for logging current activity


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# File 'Library/Homebrew/formula.rb', line 823

def active_log_prefix
  if active_log_type
    "#{active_log_type}."
  else
    ""
  end
end

#alias_changed? ⇒ Boolean

Has the alias used to install the formula changed, or are different formulae already installed with this alias?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1198

def alias_changed?
  installed_alias_target_changed? || supersedes_an_installed_formula?
end

#aliases ⇒ Object

All of aliases for the formula


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# File 'Library/Homebrew/formula.rb', line 385

def aliases
  @aliases ||= if tap
    tap.alias_reverse_table[full_name].to_a.map do |a|
      a.split("/")[-1]
    end
  else
    []
  end
end

#any_version_installed? ⇒ Boolean

If at least one version of Formula is installed.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 440

def any_version_installed?
  require "tab"
  installed_prefixes.any? { |keg| (keg/Tab::FILENAME).file? }
end

#bash_completion ⇒ Object

The directory where the formula's Bash completion files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 788

def bash_completion
  prefix/"etc/bash_completion.d"
end

#bin ⇒ Object

The directory where the formula's binaries should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

Need to install into the #bin but the makefile doesn't mkdir -p prefix/bin? <pre>bin.mkpath</pre>

No `make install` available? <pre>bin.install “binary1”</pre>


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# File 'Library/Homebrew/formula.rb', line 571

def bin
  prefix/"bin"
end

#bottle ⇒ Object

The Bottle object for the currently active SoftwareSpec.


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# File 'Library/Homebrew/formula.rb', line 330

def bottle
  Bottle.new(self, bottle_specification) if bottled?
end

#bottle_prefix ⇒ Object

The directory used for as the prefix for #etc and #var files on installation so, despite not being in `HOMEBREW_CELLAR`, they are installed there after pouring a bottle.


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# File 'Library/Homebrew/formula.rb', line 812

def bottle_prefix
  prefix/".bottle"
end

#brew ⇒ Object

yields |self,staging| with current working directory set to the uncompressed tarball where staging is a Mktemp staging context


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# File 'Library/Homebrew/formula.rb', line 1088

def brew
  @prefix_returns_versioned_prefix = true
  stage do |staging|
    staging.retain! if ARGV.keep_tmp?
    prepare_patches

    begin
      yield self, staging
    rescue StandardError
      staging.retain! if ARGV.interactive? || ARGV.debug?
      raise
    ensure
      cp Dir["config.log", "CMakeCache.txt"], logs
    end
  end
ensure
  @prefix_returns_versioned_prefix = false
end

#caveats ⇒ String

Tell the user about any Homebrew-specific caveats or locations regarding this package. These should not contain setup instructions that would apply to installation through a different package manager on a different OS. <pre>def caveats

<<~EOS
  Are optional. Something the user should know?
EOS

end</pre>

<pre>def caveats

s = <<~EOS
  Print some important notice to the user when `brew info <formula>` is
  called or when brewing a formula.
  This is optional. You can use all the vars like #{version} here.
EOS
s += "Some issue only on older systems" if MacOS.version < :mountain_lion
s

end</pre>

Returns:


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# File 'Library/Homebrew/formula.rb', line 1005

def caveats
  nil
end

#conflicts ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1470

def conflicts
  self.class.conflicts
end

#core_formula? ⇒ Boolean

True if this formula is provided by Homebrew itself

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1446

def core_formula?
  tap&.core_tap?
end

#current_installed_alias_target ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1179

def current_installed_alias_target
  Formulary.factory(installed_alias_path) if installed_alias_path
end

#desc ⇒ Object

The description of the software.

See Also:


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# File 'Library/Homebrew/formula.rb', line 337

delegate desc: :"self.class

#devel? ⇒ Boolean

Is the currently active SoftwareSpec a #devel build?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 309

def devel?
  active_spec == devel
end

#doc ⇒ Object

The directory where the formula's documentation should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 578

def doc
  share/"doc"/name
end

#eligible_kegs_for_cleanup ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1798

def eligible_kegs_for_cleanup
  eligible_for_cleanup = []
  if installed?
    eligible_kegs = if head? && (head_prefix = latest_head_prefix)
      installed_kegs - [Keg.new(head_prefix)]
    else
      installed_kegs.select do |keg|
        tab = Tab.for_keg(keg)
        if version_scheme > tab.version_scheme
          true
        elsif version_scheme == tab.version_scheme
          pkg_version > keg.version
        else
          false
        end
      end
    end

    unless eligible_kegs.empty?
      eligible_kegs.each do |keg|
        if keg.linked?
          opoo "Skipping (old) #{keg} due to it being linked"
        elsif pinned? && keg == Keg.new(@pin.path.resolved_path)
          opoo "Skipping (old) #{keg} due to it being pinned"
        else
          eligible_for_cleanup << keg
        end
      end
    end
  elsif !installed_prefixes.empty? && !pinned?    # If the cellar only has one version installed, don't complain
    # that we can't tell which one to keep. Don't complain at all if the
    # only installed version is a pinned formula.

    opoo "Skipping #{full_name}: most recent version #{pkg_version} not installed"
  end
  eligible_for_cleanup
end

#elisp ⇒ Object

The directory where Emacs Lisp files should be installed, with the formula name appended to avoid linking conflicts.

Install an Emacs mode included with a software package: <pre>elisp.install “contrib/emacs/example-mode.el”</pre>


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# File 'Library/Homebrew/formula.rb', line 732

def elisp
  prefix/"share/emacs/site-lisp"/name
end

#env ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1465

def env
  self.class.env
end

#etc ⇒ Object

The directory where the formula's configuration files should be installed. Anything using `etc.install` will not overwrite other files on e.g. upgrades but will write a new file named `*.default`. This directory is not inside the `HOMEBREW_CELLAR` so it is persisted across upgrades.


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# File 'Library/Homebrew/formula.rb', line 757

def etc
  (HOMEBREW_PREFIX/"etc").extend(InstallRenamed)
end

#fetch ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1602

def fetch
  active_spec.fetch
end

#fish_completion ⇒ Object

The directory where the formula's fish completion files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 804

def fish_completion
  share/"fish/vendor_completions.d"
end

#fish_function ⇒ Object

The directory where the formula's fish function files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 780

def fish_function
  share/"fish/vendor_functions.d"
end

#frameworks ⇒ Object

The directory where the formula's Frameworks should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only. This is not symlinked into `HOMEBREW_PREFIX`.


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# File 'Library/Homebrew/formula.rb', line 740

def frameworks
  prefix/"Frameworks"
end

#full_installed_alias_name ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 272

def full_installed_alias_name
  full_name_with_optional_tap(installed_alias_name)
end

#full_installed_specified_name ⇒ Object

The name (including tap) specified to install this formula.


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# File 'Library/Homebrew/formula.rb', line 297

def full_installed_specified_name
  full_installed_alias_name || full_name
end

#full_specified_name ⇒ Object

The name (including tap) specified to find this formula.


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# File 'Library/Homebrew/formula.rb', line 287

def full_specified_name
  full_alias_name || full_name
end

#hash ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1257

def hash
  name.hash
end

#head? ⇒ Boolean

Is the currently active SoftwareSpec a #head build?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 315

def head?
  active_spec == head
end

#head_version_outdated?(version, options = {}) ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 468

def head_version_outdated?(version, options = {})
  tab = Tab.for_keg(prefix(version))

  return true if tab.version_scheme < version_scheme
  return true if stable && tab.stable_version && tab.stable_version < stable.version
  return true if devel && tab.devel_version && tab.devel_version < devel.version

  if options[:fetch_head]
    return false unless head&.downloader.is_a?(VCSDownloadStrategy)
    downloader = head.downloader
    downloader.shutup! unless ARGV.verbose?
    downloader.commit_outdated?(version.version.commit)
  else
    false
  end
end

#homepage ⇒ Object

The homepage for the software.

See Also:


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# File 'Library/Homebrew/formula.rb', line 342

delegate homepage: :"self.class

#include ⇒ Object

The directory where the formula's headers should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

No `make install` available? <pre>include.install “example.h”</pre>


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# File 'Library/Homebrew/formula.rb', line 588

def include
  prefix/"include"
end

#info ⇒ Object

The directory where the formula's info files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 595

def info
  share/"info"
end

#inreplace(paths, before = nil, after = nil) ⇒ Object

Actually implemented in Utils::Inreplace.inreplace. Sometimes we have to change a bit before we install. Mostly we prefer a patch but if you need the `prefix` of this formula in the patch you have to resort to `inreplace`, because in the patch you don't have access to any var defined by the formula. Only HOMEBREW_PREFIX is available in the embedded patch. inreplace supports regular expressions. <pre>inreplace “somefile.cfg”, /lookwhat?/, “replace by ##bin/tool”</pre>

See Also:



# File 'Library/Homebrew/formula.rb', line 51

#inspect ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1272

def inspect
  "#<Formula #{name} (#{active_spec_sym}) #{path}>"
end

#install ⇒ Object

This method is overridden in Formula subclasses to provide the installation instructions. The sources (from url) are downloaded, hash-checked and Homebrew changes into a temporary directory where the archive was unpacked or repository cloned. <pre>def install

system "./configure", "--prefix=#{prefix}"
system "make", "install"

end</pre>


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# File 'Library/Homebrew/formula.rb', line 1670

def install; end

#installed? ⇒ Boolean

If this Formula is installed. This is actually just a check for if the #installed_prefix directory exists and is not empty.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 434

def installed?
  (dir = installed_prefix).directory? && !dir.children.empty?
end

#installed_alias_name ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 268

def installed_alias_name
  File.basename(installed_alias_path) if installed_alias_path
end

#installed_alias_path ⇒ Object

The alias path that was used to install this formula, if it exists. Can differ from alias_path, which is the alias used to find the formula, and is specified to this instance.


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# File 'Library/Homebrew/formula.rb', line 261

def installed_alias_path
  path = build.source["path"] if build.is_a?(Tab)
  return unless path =~ %r{#{HOMEBREW_TAP_DIR_REGEX}/Aliases}
  return unless File.symlink?(path)
  path
end

#installed_alias_target_changed? ⇒ Boolean

Has the target of the alias used to install this formula changed? Returns false if the formula wasn't installed with an alias.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1185

def installed_alias_target_changed?
  target = current_installed_alias_target
  return false unless target
  target.name != name
end

#installed_kegs ⇒ Object

All currently installed kegs.


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# File 'Library/Homebrew/formula.rb', line 558

def installed_kegs
  installed_prefixes.map { |dir| Keg.new(dir) }
end

#installed_prefix ⇒ Object

The latest prefix for this formula. Checks for #head, then #devel and then #stable's #prefix


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# File 'Library/Homebrew/formula.rb', line 488

def installed_prefix
  if head && (head_version = latest_head_version) && !head_version_outdated?(head_version)
    latest_head_prefix
  elsif devel && (devel_prefix = prefix(PkgVersion.new(devel.version, revision))).directory?
    devel_prefix
  elsif stable && (stable_prefix = prefix(PkgVersion.new(stable.version, revision))).directory?
    stable_prefix
  else
    prefix
  end
end

#installed_prefixes ⇒ Object

All currently installed prefix directories.


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# File 'Library/Homebrew/formula.rb', line 552

def installed_prefixes
  rack.directory? ? rack.subdirs.sort : []
end

#installed_specified_name ⇒ Object

The name specified to install this formula.


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# File 'Library/Homebrew/formula.rb', line 292

def installed_specified_name
  installed_alias_name || name
end

#installed_version ⇒ Object

The currently installed version for this formula. Will raise an exception if the formula is not installed.


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# File 'Library/Homebrew/formula.rb', line 503

def installed_version
  Keg.new(installed_prefix).version
end

#keg_only? ⇒ Boolean

rarely, you don't want your library symlinked into the main prefix see gettext.rb for an example

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1011

def keg_only?
  return false unless keg_only_reason
  keg_only_reason.valid?
end

#keg_only_reason ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1017

def keg_only_reason
  self.class.keg_only_reason
end

#kext_prefix ⇒ Object

The directory where the formula's kernel extensions should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only. This is not symlinked into `HOMEBREW_PREFIX`.


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# File 'Library/Homebrew/formula.rb', line 748

def kext_prefix
  prefix/"Library/Extensions"
end

#latest_formula ⇒ Object

If the alias has changed value, return the new formula. Otherwise, return self.


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# File 'Library/Homebrew/formula.rb', line 1204

def latest_formula
  installed_alias_target_changed? ? current_installed_alias_target : self
end

#latest_head_prefix ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 463

def latest_head_prefix
  head_version = latest_head_version
  prefix(head_version) if head_version
end

#latest_head_version ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 452

def latest_head_version
  head_versions = installed_prefixes.map do |pn|
    pn_pkgversion = PkgVersion.parse(pn.basename.to_s)
    pn_pkgversion if pn_pkgversion.head?
  end.compact

  head_versions.max_by do |pn_pkgversion|
    [Tab.for_keg(prefix(pn_pkgversion)).source_modified_time, pn_pkgversion.revision]
  end
end

#lib ⇒ Object

The directory where the formula's libraries should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

No `make install` available? <pre>lib.install “example.dylib”</pre>


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# File 'Library/Homebrew/formula.rb', line 605

def lib
  prefix/"lib"
end

#libexec ⇒ Object

The directory where the formula's binaries should be installed. This is not symlinked into `HOMEBREW_PREFIX`. It is also commonly used to install files that we do not wish to be symlinked into HOMEBREW_PREFIX from one of the other directories and instead manually create symlinks or wrapper scripts into e.g. #bin.


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# File 'Library/Homebrew/formula.rb', line 614

def libexec
  prefix/"libexec"
end

#link_overwrite?(path) ⇒ Boolean

Sometimes we accidentally install files outside prefix. After we fix that, users will get nasty link conflict error. So we create a whitelist here to allow overwriting certain files. e.g.

link_overwrite "bin/foo", "lib/bar"
link_overwrite "share/man/man1/baz-*"

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1039

def link_overwrite?(path)
  # Don't overwrite files not created by Homebrew.
  return false unless path.stat.uid == HOMEBREW_BREW_FILE.stat.uid  # Don't overwrite files belong to other keg except when that
  # keg's formula is deleted.

  begin
    keg = Keg.for(path)
  rescue NotAKegError, Errno::ENOENT # rubocop:disable Lint/HandleExceptions
    # file doesn't belong to any keg.
  else
    tab_tap = Tab.for_keg(keg).tap
    return false if tab_tap.nil? # this keg doesn't below to any core/tap formula, most likely coming from a DIY install.
    begin
      Formulary.factory(keg.name)
    rescue FormulaUnavailableError # rubocop:disable Lint/HandleExceptions
      # formula for this keg is deleted, so defer to whitelist
    rescue TapFormulaAmbiguityError, TapFormulaWithOldnameAmbiguityError
      return false # this keg belongs to another formula
    else
      return false # this keg belongs to another formula
    end
  end
  to_check = path.relative_path_from(HOMEBREW_PREFIX).to_s
  self.class.link_overwrite_paths.any? do |p|
    p == to_check ||
      to_check.start_with?(p.chomp("/") + "/") ||
      to_check =~ /^#{Regexp.escape(p).gsub('\*', ".*?")}$/
  end
end

#linked? ⇒ Boolean

Is the formula linked?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 522

def linked?
  linked_keg.symlink?
end

#linked_keg ⇒ Object

The link status symlink directory for this Formula. You probably want #opt_prefix instead.


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# File 'Library/Homebrew/formula.rb', line 448

def linked_keg
  HOMEBREW_LINKED_KEGS/name
end

#linked_version ⇒ Object

PkgVersion of the linked keg for the formula.


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# File 'Library/Homebrew/formula.rb', line 538

def linked_version
  return unless linked?
  Keg.for(linked_keg).version
end

#lock ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1108

def lock
  @lock = FormulaLock.new(name)
  @lock.lock
  return unless oldname
  return unless (oldname_rack = HOMEBREW_CELLAR/oldname).exist?
  return unless oldname_rack.resolved_path == rack
  @oldname_lock = FormulaLock.new(oldname)
  @oldname_lock.lock
end

#logs ⇒ Object

The directory where the formula's installation or test logs will be written.


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# File 'Library/Homebrew/formula.rb', line 818

def logs
  HOMEBREW_LOGS + name
end

#man ⇒ Object

The root directory where the formula's manual pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only. Often one of the more specific `man` functions should be used instead e.g. #man1


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# File 'Library/Homebrew/formula.rb', line 623

def man
  share/"man"
end

#man1 ⇒ Object

The directory where the formula's man1 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

No `make install` available? <pre>man1.install “example.1”</pre>


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# File 'Library/Homebrew/formula.rb', line 633

def man1
  man/"man1"
end

#man2 ⇒ Object

The directory where the formula's man2 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 640

def man2
  man/"man2"
end

#man3 ⇒ Object

The directory where the formula's man3 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

No `make install` available? <pre>man3.install “man.3”</pre>


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# File 'Library/Homebrew/formula.rb', line 650

def man3
  man/"man3"
end

#man4 ⇒ Object

The directory where the formula's man4 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 657

def man4
  man/"man4"
end

#man5 ⇒ Object

The directory where the formula's man5 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 664

def man5
  man/"man5"
end

#man6 ⇒ Object

The directory where the formula's man6 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 671

def man6
  man/"man6"
end

#man7 ⇒ Object

The directory where the formula's man7 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 678

def man7
  man/"man7"
end

#man8 ⇒ Object

The directory where the formula's man8 pages should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 685

def man8
  man/"man8"
end

#migration_needed? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1124

def migration_needed?
  return false unless oldname
  return false if rack.exist?

  old_rack = HOMEBREW_CELLAR/oldname
  return false unless old_rack.directory?
  return false if old_rack.subdirs.empty?

  tap == Tab.for_keg(old_rack.subdirs.sort.first).tap
end

#missing_dependencies(hide: nil) ⇒ Object

Returns a list of formulae depended on by this formula that aren't installed


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# File 'Library/Homebrew/formula.rb', line 1498

def missing_dependencies(hide: nil)
  hide ||= []
  missing_dependencies = recursive_dependencies do |dependent, dep|
    if dep.build?
      Dependency.prune
    elsif dep.optional? || dep.recommended?
      tab = Tab.for_formula(dependent)
      Dependency.prune unless tab.with?(dep)
    end
  end

  missing_dependencies.map!(&:to_formula)
  missing_dependencies.select! do |d|
    hide.include?(d.name) || d.installed_prefixes.empty?
  end
  missing_dependencies
rescue FormulaUnavailableError
  []
end

#new_formula_available? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1175

def new_formula_available?
  installed_alias_target_changed? && !latest_formula.installed?
end

#old_installed_formulae ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1208

def old_installed_formulae  # If this formula isn't the current target of the alias,
  # it doesn't make sense to say that other formulae are older versions of it
  # because we don't know which came first.

  return [] if alias_path.nil? || installed_alias_target_changed?
  self.class.installed_with_alias_path(alias_path).reject { |f| f.name == name }
end

#oldname ⇒ Object

An old name for the formula


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# File 'Library/Homebrew/formula.rb', line 377

def oldname
  @oldname ||= if tap
    formula_renames = tap.formula_renames
    formula_renames.to_a.rassoc(name).first if formula_renames.value?(name)
  end
end

#opt_bin ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 901

def opt_bin
  opt_prefix/"bin"
end

#opt_elisp ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 929

def opt_elisp
  opt_prefix/"share/emacs/site-lisp"/name
end

#opt_frameworks ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 933

def opt_frameworks
  opt_prefix/"Frameworks"
end

#opt_include ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 905

def opt_include
  opt_prefix/"include"
end

#opt_lib ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 909

def opt_lib
  opt_prefix/"lib"
end

#opt_libexec ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 913

def opt_libexec
  opt_prefix/"libexec"
end

#opt_pkgshare ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 925

def opt_pkgshare
  opt_prefix/"share"/name
end

#opt_prefix ⇒ Object

A stable path for this formula, when installed. Contains the formula name but no version number. Only the active version will be linked here if multiple versions are installed.

This is the prefered way to refer a formula in plists or from another formula, as the path is stable even when the software is updated. <pre>args << “–with-readline=#.opt_prefix” if build.with? “readline”</pre>


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# File 'Library/Homebrew/formula.rb', line 897

def opt_prefix
  Pathname.new("#{HOMEBREW_PREFIX}/opt/#{name}")
end

#opt_sbin ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 917

def opt_sbin
  opt_prefix/"sbin"
end

#opt_share ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 921

def opt_share
  opt_prefix/"share"
end

#option_defined? ⇒ Object

If a named option is defined for the currently active SoftwareSpec.


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# File 'Library/Homebrew/formula.rb', line 425

delegate option_defined?: :active_spec

#optlinked? ⇒ Boolean

Is the formula linked to opt?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 527

def optlinked?
  opt_prefix.symlink?
end

#outdated?(options = {}) ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1217

def outdated?(options = {})
  !outdated_kegs(options).empty?
rescue Migrator::MigrationNeededError
  true
end

#outdated_kegs(options = {}) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1136

def outdated_kegs(options = {})
  @outdated_kegs ||= Hash.new do |cache, key|
    raise Migrator::MigrationNeededError, self if migration_needed?
    cache[key] = _outdated_kegs(key)
  end
  @outdated_kegs[options]
end

#patch ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1079

def patch
  return if patchlist.empty?
  ohai "Patching"
  patchlist.each(&:apply)
end

#pin ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1239

def pin
  @pin.pin
end

#pinnable? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1224

def pinnable?
  @pin.pinnable?
end

#pinned? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1229

def pinned?
  @pin.pinned?
end

#pinned_version ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1234

def pinned_version
  @pin.pinned_version
end

#pkg_version ⇒ Object

The PkgVersion for this formula with version and #revision information.


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# File 'Library/Homebrew/formula.rb', line 360

def pkg_version
  PkgVersion.new(version, revision)
end

#pkgshare ⇒ Object

The directory where the formula's shared files should be installed, with the name of the formula appended to avoid linking conflicts. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

No `make install` available? <pre>pkgshare.install “examples”</pre>


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# File 'Library/Homebrew/formula.rb', line 723

def pkgshare
  prefix/"share"/name
end

#plist ⇒ Object

This method can be overridden to provide a plist. For more examples read Apple's handy manpage: developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man5/plist.5.html <pre>def plist; <<~EOS

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>
    <string>#{plist_name}</string>
  <key>ProgramArguments</key>
  <array>
    <string>#{opt_bin}/example</string>
    <string>--do-this</string>
  </array>
  <key>RunAtLoad</key>
  <true/>
  <key>KeepAlive</key>
  <true/>
  <key>StandardErrorPath</key>
  <string>/dev/null</string>
  <key>StandardOutPath</key>
  <string>/dev/null</string>
</plist>
EOS

end</pre>


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# File 'Library/Homebrew/formula.rb', line 866

def plist
  nil
end

#plist_manual ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 881

def plist_manual
  self.class.plist_manual
end

#plist_name ⇒ Object

The generated launchd #plist service name.


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# File 'Library/Homebrew/formula.rb', line 871

def plist_name
  "homebrew.mxcl." + name
end

#plist_path ⇒ Object

The generated launchd #plist file path.


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# File 'Library/Homebrew/formula.rb', line 876

def plist_path
  prefix + (plist_name + ".plist")
end

#plist_startup ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 886

def plist_startup
  self.class.plist_startup
end

#post_install ⇒ Object

Can be overridden to run commands on both source and bottle installation.


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# File 'Library/Homebrew/formula.rb', line 953

def post_install; end

#pour_bottle? ⇒ Boolean

Indicates that this formula supports bottles. (Not necessarily that one should be used in the current installation run.) Can be overridden to selectively disable bottles from formulae. Defaults to true so overridden version does not have to check if bottles are supported. Replaced by pour_bottle's `satisfy` method if it is specified.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 943

def pour_bottle?
  true
end

#pour_bottle_check_unsatisfied_reason ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 948

def pour_bottle_check_unsatisfied_reason
  self.class.pour_bottle_check_unsatisfied_reason
end

#prefix(v = pkg_version) ⇒ Object

The directory in the cellar that the formula is installed to. This directory points to #opt_prefix if it exists and if ##prefix is not called from within the same formula's #install or #post_install methods. Otherwise, return the full path to the formula's versioned cellar.


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# File 'Library/Homebrew/formula.rb', line 511

def prefix(v = pkg_version)
  versioned_prefix = versioned_prefix(v)
  if !@prefix_returns_versioned_prefix && v == pkg_version &&
     versioned_prefix.directory? && Keg.new(versioned_prefix).optlinked?
    opt_prefix
  else
    versioned_prefix
  end
end

#prefix_linked?(v = pkg_version) ⇒ Boolean

Is formula's linked keg points to the prefix.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 532

def prefix_linked?(v = pkg_version)
  return false unless linked?
  linked_keg.resolved_path == versioned_prefix(v)
end

#print_tap_action(options = {}) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1458

def print_tap_action(options = {})
  return unless tap?
  verb = options[:verb] || "Installing"
  ohai "#{verb} #{name} from #{tap}"
end

#rack ⇒ Object

The parent of the prefix; the named directory in the cellar containing all installed versions of this software


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# File 'Library/Homebrew/formula.rb', line 546

def rack
  Pathname.new("#{HOMEBREW_CELLAR}/#{name}")
end

#recursive_dependencies(&block) ⇒ Object

Returns a list of Dependency objects in an installable order, which means if a depends on b then b will be ordered before a in this list


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# File 'Library/Homebrew/formula.rb', line 1477

def recursive_dependencies(&block)
  Dependency.expand(self, &block)
end

#recursive_requirements(&block) ⇒ Object

The full set of Requirements for this formula's dependency tree.


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# File 'Library/Homebrew/formula.rb', line 1483

def recursive_requirements(&block)
  Requirement.expand(self, &block)
end

#require_universal_deps? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1074

def require_universal_deps?
  false
end

#resource ⇒ Object

A named Resource for the currently active SoftwareSpec. Additional downloads can be defined as #resources. Resource#stage will create a temporary directory and yield to a block. <pre>resource(“additional_files”).stage { bin.install “my/extra/tool” }</pre>


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# File 'Library/Homebrew/formula.rb', line 374

delegate resource: :active_spec

#resources ⇒ Object

The Resources for the currently active SoftwareSpec.


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# File 'Library/Homebrew/formula.rb', line 397

def_delegator :"active_spec.resources", :values, :resources

#run_post_install ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 956

def run_post_install
  @prefix_returns_versioned_prefix = true
  build = self.build
  self.build = Tab.for_formula(self)

  new_env = {
    "TMPDIR" => HOMEBREW_TEMP,
    "TEMP" => HOMEBREW_TEMP,
    "TMP" => HOMEBREW_TEMP,
    "HOMEBREW_PATH" => nil,
    "PATH" => ENV["HOMEBREW_PATH"],
  }

  with_env(new_env) do
    ENV.clear_sensitive_environment!

    Pathname.glob("#{bottle_prefix}/{etc,var}/**/*") do |path|
      path.extend(InstallRenamed)
      path.cp_path_sub(bottle_prefix, HOMEBREW_PREFIX)
    end

    with_logging("post_install") do
      post_install
    end
  end
ensure
  self.build = build
  @prefix_returns_versioned_prefix = false
end

#run_test ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1612

def run_test
  @prefix_returns_versioned_prefix = true

  test_env = {
    CURL_HOME: ENV["CURL_HOME"] || ENV["HOME"],
    TMPDIR: HOMEBREW_TEMP,
    TEMP: HOMEBREW_TEMP,
    TMP: HOMEBREW_TEMP,
    TERM: "dumb",
    PATH: PATH.new(ENV["PATH"], HOMEBREW_PREFIX/"bin"),
    HOMEBREW_PATH: nil,
    _JAVA_OPTIONS: "#{ENV["_JAVA_OPTIONS"]} -Duser.home=#{HOMEBREW_CACHE}/java_cache",
  }

  ENV.clear_sensitive_environment!

  mktemp("#{name}-test") do |staging|
    staging.retain! if ARGV.keep_tmp?
    @testpath = staging.tmpdir
    test_env[:HOME] = @testpath
    setup_home @testpath
    begin
      with_logging("test") do
        with_env(test_env) do
          test
        end
      end
    rescue Exception # rubocop:disable Lint/RescueException
      staging.retain! if ARGV.debug?
      raise
    end
  end
ensure
  @testpath = nil
  @prefix_returns_versioned_prefix = false
end

#runtime_dependencies ⇒ Object

Returns a list of Dependency objects that are required at runtime.


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# File 'Library/Homebrew/formula.rb', line 1489

def runtime_dependencies
  recursive_dependencies do |_, dependency|
    Dependency.prune if dependency.build?
    Dependency.prune if !dependency.required? && build.without?(dependency)
  end
end

#sbin ⇒ Object

The directory where the formula's `sbin` binaries should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only. Generally we try to migrate these to #bin instead.


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# File 'Library/Homebrew/formula.rb', line 693

def sbin
  prefix/"sbin"
end

#share ⇒ Object

The directory where the formula's shared files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.

Need a custom directory? <pre>(share/“concept”).mkpath</pre>

Installing something into another custom directory? <pre>(share/“concept2”).install “ducks.txt”</pre>

Install `./example_code/simple/ones` to share/demos <pre>(share/“demos”).install “example_code/simple/ones”</pre>

Install `./example_code/simple/ones` to share/demos/examples <pre>(share/“demos”).install “example_code/simple/ones” => “examples”</pre>


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# File 'Library/Homebrew/formula.rb', line 712

def share
  prefix/"share"
end

#skip_clean?(path) ⇒ Boolean

sometimes the formula cleaner breaks things skip cleaning paths in a formula with a class method like this:

skip_clean "bin/foo", "lib/bar"

keep .la files with:

skip_clean :la

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1027

def skip_clean?(path)
  return true if path.extname == ".la" && self.class.skip_clean_paths.include?(:la)
  to_check = path.relative_path_from(prefix).to_s
  self.class.skip_clean_paths.include? to_check
end

#skip_cxxstdlib_check? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1069

def skip_cxxstdlib_check?
  false
end

#specified_name ⇒ Object

The name specified to find this formula.


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# File 'Library/Homebrew/formula.rb', line 282

def specified_name
  alias_name || name
end

#specified_path ⇒ Object

The path that was specified to find this formula.


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# File 'Library/Homebrew/formula.rb', line 277

def specified_path
  alias_path || path
end

#stable? ⇒ Boolean

Is the currently active SoftwareSpec a #stable build?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 303

def stable?
  active_spec == stable
end

#std_cmake_args ⇒ Object

Standard parameters for CMake builds. Setting CMAKE_FIND_FRAMEWORK to “LAST” tells CMake to search for our libraries before trying to utilize Frameworks, many of which will be from 3rd party installs. Note: there isn't a std_autotools variant because autotools is a lot less consistent and the standard parameters are more memorable.


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# File 'Library/Homebrew/formula.rb', line 1282

def std_cmake_args
  args = %W[
    -DCMAKE_C_FLAGS_RELEASE=-DNDEBUG
    -DCMAKE_CXX_FLAGS_RELEASE=-DNDEBUG
    -DCMAKE_INSTALL_PREFIX=#{prefix}
    -DCMAKE_BUILD_TYPE=Release
    -DCMAKE_FIND_FRAMEWORK=LAST
    -DCMAKE_VERBOSE_MAKEFILE=ON
    -Wno-dev
  ]

  # Avoid false positives for clock_gettime support on 10.11.
  # CMake cache entries for other weak symbols may be added here as needed.
  if MacOS.version == "10.11" && MacOS::Xcode.installed? && MacOS::Xcode.version >= "8.0"
    args << "-DHAVE_CLOCK_GETTIME:INTERNAL=0"
  end

  args
end

#supersedes_an_installed_formula? ⇒ Boolean

Is this formula the target of an alias used to install an old formula?

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1192

def supersedes_an_installed_formula?
  old_installed_formulae.any?
end

#system(cmd, *args) ⇒ Object

To call out to the system, we use the `system` method and we prefer you give the args separately as in the line below, otherwise a subshell has to be opened first. <pre>system “./bootstrap.sh”, “–arg1”, “–prefix=##prefix”</pre>

For CMake we have some necessary defaults in #std_cmake_args: <pre>system “cmake”, “.”, *std_cmake_args</pre>

If the arguments given to configure (or make or cmake) are depending on options defined above, we usually make a list first and then use the `args << if <condition>` to append to: <pre>args = [“–with-option1”, “–with-option2”]

# Most software still uses `configure` and `make`. # Check with `./configure –help` what our options are. system “./configure”, “–disable-debug”, “–disable-dependency-tracking”,

"--disable-silent-rules", "--prefix=#{prefix}",
*args # our custom arg list (needs `*` to unpack)

# If there is a “make”, “install” available, please use it! system “make”, “install”</pre>


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# File 'Library/Homebrew/formula.rb', line 1707

def system(cmd, *args)
  verbose = ARGV.verbose?
  verbose_using_dots = !ENV["HOMEBREW_VERBOSE_USING_DOTS"].nil?

  # remove "boring" arguments so that the important ones are more likely to
  # be shown considering that we trim long ohai lines to the terminal width
  pretty_args = args.dup
  if cmd == "./configure" && !verbose
    pretty_args.delete "--disable-dependency-tracking"
    pretty_args.delete "--disable-debug"
  end
  pretty_args.each_index do |i|
    if pretty_args[i].to_s.start_with? "import setuptools"
      pretty_args[i] = "import setuptools..."
    end
  end
  ohai "#{cmd} #{pretty_args * " "}".strip

  @exec_count ||= 0
  @exec_count += 1
  logfn = format("#{logs}/#{active_log_prefix}%02d.%s", @exec_count, File.basename(cmd).split(" ").first)
  logs.mkpath

  File.open(logfn, "w") do |log|
    log.puts Time.now, "", cmd, args, ""
    log.flush

    if verbose
      rd, wr = IO.pipe
      begin
        pid = fork do
          rd.close
          log.close
          exec_cmd(cmd, args, wr, logfn)
        end
        wr.close

        if verbose_using_dots
          last_dot = Time.at(0)
          while buf = rd.gets
            log.puts buf            # make sure dots printed with interval of at least 1 min.

            next unless (Time.now - last_dot) > 60
            print "."
            $stdout.flush
            last_dot = Time.now
          end
          puts
        else
          while buf = rd.gets
            log.puts buf
            puts buf
          end
        end
      ensure
        rd.close
      end
    else
      pid = fork { exec_cmd(cmd, args, log, logfn) }
    end

    Process.wait(pid)

    $stdout.flush

    unless $CHILD_STATUS.success?
      log_lines = ENV["HOMEBREW_FAIL_LOG_LINES"]
      log_lines ||= "15"

      log.flush
      if !verbose || verbose_using_dots
        puts "Last #{log_lines} lines from #{logfn}:"
        Kernel.system "/usr/bin/tail", "-n", log_lines, logfn
      end
      log.puts

      require "system_config"
      require "build_environment"

      env = ENV.to_hash

      SystemConfig.dump_verbose_config(log)
      log.puts
      Homebrew.dump_build_env(env, log)

      raise BuildError.new(self, cmd, args, env)
    end
  end
end

#tap? ⇒ Boolean

True if this formula is provided by external Tap

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1452

def tap?
  return false unless tap
  !tap.core_tap?
end

#test ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1655

def test; end

#test_defined? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 1650

def test_defined?
  false
end

#test_fixtures(file) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1658

def test_fixtures(file)
  HOMEBREW_LIBRARY_PATH/"test/support/fixtures"/file
end

#to_hash ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1519

def to_hash
  hsh = {
    "name" => name,
    "full_name" => full_name,
    "desc" => desc,
    "homepage" => homepage,
    "oldname" => oldname,
    "aliases" => aliases,
    "versions" => {
      "stable" => stable&.version&.to_s,
      "bottle" => bottle ? true : false,
      "devel" => devel&.version&.to_s,
      "head" => head&.version&.to_s,
    },
    "revision" => revision,
    "version_scheme" => version_scheme,
    "installed" => [],
    "linked_keg" => (linked_version.to_s if linked_keg.exist?),
    "pinned" => pinned?,
    "outdated" => outdated?,
    "keg_only" => keg_only?,
    "dependencies" => deps.map(&:name).uniq,
    "recommended_dependencies" => deps.select(&:recommended?).map(&:name).uniq,
    "optional_dependencies" => deps.select(&:optional?).map(&:name).uniq,
    "build_dependencies" => deps.select(&:build?).map(&:name).uniq,
    "conflicts_with" => conflicts.map(&:name),
    "caveats" => caveats,
  }

  hsh["requirements"] = requirements.map do |req|
    {
      "name" => req.name,
      "cask" => req.cask,
      "download" => req.download,
    }
  end

  hsh["options"] = options.map do |opt|
    { "option" => opt.flag, "description" => opt.description }
  end

  hsh["bottle"] = {}
  %w[stable devel].each do |spec_sym|
    next unless spec = send(spec_sym)
    next unless spec.bottle_defined?
    bottle_spec = spec.bottle_specification
    bottle_info = {
      "rebuild" => bottle_spec.rebuild,
      "cellar" => (cellar = bottle_spec.cellar).is_a?(Symbol) ? cellar.inspect : cellar,
      "prefix" => bottle_spec.prefix,
      "root_url" => bottle_spec.root_url,
    }
    bottle_info["files"] = {}
    bottle_spec.collector.keys.each do |os| # rubocop:disable Performance/HashEachMethods
      checksum = bottle_spec.collector[os]
      bottle_info["files"][os] = {
        "url" => "#{bottle_spec.root_url}/#{Bottle::Filename.create(self, os, bottle_spec.rebuild)}",
        checksum.hash_type.to_s => checksum.hexdigest,
      }
    end
    hsh["bottle"][spec_sym] = bottle_info
  end

  installed_kegs.each do |keg|
    tab = Tab.for_keg keg

    hsh["installed"] << {
      "version" => keg.version.to_s,
      "used_options" => tab.used_options.as_flags,
      "built_as_bottle" => tab.built_as_bottle,
      "poured_from_bottle" => tab.poured_from_bottle,
      "runtime_dependencies" => tab.runtime_dependencies,
      "installed_as_dependency" => tab.installed_as_dependency,
      "installed_on_request" => tab.installed_on_request,
    }
  end

  hsh["installed"] = hsh["installed"].sort_by { |i| Version.create(i["version"]) }

  hsh
end

#to_s ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1267

def to_s
  name
end

#unlock ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1119

def unlock
  @lock&.unlock
  @oldname_lock&.unlock
end

#unpin ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1244

def unpin
  @pin.unpin
end

#update_head_version ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 351

def update_head_version
  return unless head?
  return unless head.downloader.is_a?(VCSDownloadStrategy)
  return unless head.downloader.cached_location.exist?

  head.version.update_commit(head.downloader.last_commit)
end

#var ⇒ Object

The directory where the formula's variable files should be installed. This directory is not inside the `HOMEBREW_CELLAR` so it is persisted across upgrades.


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# File 'Library/Homebrew/formula.rb', line 764

def var
  HOMEBREW_PREFIX/"var"
end

#verify_download_integrity(fn) ⇒ Object 


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# File 'Library/Homebrew/formula.rb', line 1607

def verify_download_integrity(fn)
  active_spec.verify_download_integrity(fn)
end

#version ⇒ Object

The version for the currently active SoftwareSpec. The version is autodetected from the URL and/or tag so only needs to be declared if it cannot be autodetected correctly.

See Also:


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# File 'Library/Homebrew/formula.rb', line 349

delegate version: :active_spec

#versioned_formula? ⇒ Boolean

If this is a `@`-versioned formula.

Returns:

  • (Boolean) 

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# File 'Library/Homebrew/formula.rb', line 365

def versioned_formula?
  name.include?("@")
end

#with_logging(log_type) ⇒ Object

Runs a block with the given log type in effect for its duration


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# File 'Library/Homebrew/formula.rb', line 832

def with_logging(log_type)
  old_log_type = @active_log_type
  @active_log_type = log_type
  yield
ensure
  @active_log_type = old_log_type
end

#zsh_completion ⇒ Object

The directory where the formula's ZSH completion files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 796

def zsh_completion
  share/"zsh/site-functions"
end

#zsh_function ⇒ Object

The directory where the formula's ZSH function files should be installed. This is symlinked into `HOMEBREW_PREFIX` after installation or with `brew link` for formulae that are not keg-only.


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# File 'Library/Homebrew/formula.rb', line 772

def zsh_function
  share/"zsh/site-functions"
end