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#: * `uses` [`--installed`] [`--recursive`] [`--include-build`] [`--include-optional`] [`--skip-recommended`] [`--devel`|`--HEAD`] <formulae>:
#: Show the formulae that specify <formulae> as a dependency. When given
#: multiple formula arguments, show the intersection of formulae that use
#: <formulae>.
#:
#: Use `--recursive` to resolve more than one level of dependencies.
#:
#: If `--installed` is passed, only list installed formulae.
#:
#: By default, `uses` shows all formulae that specify <formulae> as a required
#: or recommended dependency. To include the `:build` type dependencies, pass
#: `--include-build`. Similarly, pass `--include-optional` to include `:optional`
#: dependencies. To skip `:recommended` type dependencies, pass `--skip-recommended`.
#:
#: By default, `uses` shows usages of <formulae> by stable builds. To find
#: cases where <formulae> is used by development or HEAD build, pass
#: `--devel` or `--HEAD`.
require "formula"
# `brew uses foo bar` returns formulae that use both foo and bar
# If you want the union, run the command twice and concatenate the results.
# The intersection is harder to achieve with shell tools.
module Homebrew
module_function
def uses
raise FormulaUnspecifiedError if ARGV.named.empty?
used_formulae_missing = false
used_formulae = begin
ARGV.formulae
rescue FormulaUnavailableError => e
opoo e
used_formulae_missing = true
# If the formula doesn't exist: fake the needed formula object name.
ARGV.named.map { |name| OpenStruct.new name: name, full_name: name }
end
formulae = ARGV.include?("--installed") ? Formula.installed : Formula
recursive = ARGV.flag? "--recursive"
includes = []
ignores = []
if ARGV.include? "--include-build"
includes << "build?"
else
ignores << "build?"
end
if ARGV.include? "--include-optional"
includes << "optional?"
else
ignores << "optional?"
end
ignores << "recommended?" if ARGV.include? "--skip-recommended"
uses = formulae.select do |f|
used_formulae.all? do |ff|
begin
if recursive
deps = f.recursive_dependencies do |dependent, dep|
if dep.recommended?
Dependency.prune if ignores.include?("recommended?") || dependent.build.without?(dep)
elsif dep.optional?
Dependency.prune if !includes.include?("optional?") && !dependent.build.with?(dep)
elsif dep.build?
Dependency.prune unless includes.include?("build?")
end
# If a tap isn't installed, we can't find the dependencies of one
# its formulae, and an exception will be thrown if we try.
if dep.is_a?(TapDependency) && !dep.tap.installed?
Dependency.keep_but_prune_recursive_deps
end
end
dep_formulae = deps.flat_map do |dep|
begin
dep.to_formula
rescue
[]
end
end
reqs_by_formula = ([f] + dep_formulae).flat_map do |formula|
formula.requirements.map { |req| [formula, req] }
end
reqs_by_formula.reject! do |dependent, req|
if req.recommended?
ignores.include?("recommended?") || dependent.build.without?(req)
elsif req.optional?
!includes.include?("optional?") && !dependent.build.with?(req)
elsif req.build?
!includes.include?("build?")
end
end
reqs = reqs_by_formula.map(&:last)
else
deps = f.deps.reject do |dep|
ignores.any? { |ignore| dep.send(ignore) } && includes.none? { |include| dep.send(include) }
end
reqs = f.requirements.reject do |req|
ignores.any? { |ignore| req.send(ignore) } && includes.none? { |include| req.send(include) }
end
end
next true if deps.any? do |dep|
begin
dep.to_formula.full_name == ff.full_name
rescue
dep.name == ff.name
end
end
reqs.any? { |req| req.name == ff.name }
rescue FormulaUnavailableError
# Silently ignore this case as we don't care about things used in
# taps that aren't currently tapped.
next
end
end
end
return if uses.empty?
puts Formatter.columns(uses.map(&:full_name).sort)
odie "Missing formulae should not have dependents!" if used_formulae_missing
end
end
|
