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require "formula"
class FormulaVersions
IGNORED_EXCEPTIONS = [
ArgumentError, NameError, SyntaxError, TypeError,
FormulaSpecificationError, FormulaValidationError,
ErrorDuringExecution, LoadError, FormulaMethodDeprecatedError
]
attr_reader :name, :path, :repository, :entry_name
def initialize(formula, options = {})
@name = formula.name
@path = formula.path
@repository = formula.tap.path
@entry_name = @path.relative_path_from(repository).to_s
@max_depth = options[:max_depth]
end
def rev_list(branch)
repository.cd do
depth = 0
Utils.popen_read("git", "rev-list", "--abbrev-commit", "--remove-empty", branch, "--", entry_name) do |io|
yield io.readline.chomp until io.eof? || (@max_depth && (depth += 1) > @max_depth)
end
end
end
def file_contents_at_revision(rev)
repository.cd { Utils.popen_read("git", "cat-file", "blob", "#{rev}:#{entry_name}") }
end
def formula_at_revision(rev)
contents = file_contents_at_revision(rev)
begin
Homebrew.raise_deprecation_exceptions = true
nostdout { yield Formulary.from_contents(name, path, contents) }
rescue *IGNORED_EXCEPTIONS => e
# We rescue these so that we can skip bad versions and
# continue walking the history
ohai "#{e} in #{name} at revision #{rev}", e.backtrace if ARGV.debug?
rescue FormulaUnavailableError
# Suppress this error
ensure
Homebrew.raise_deprecation_exceptions = false
end
end
def bottle_version_map(branch)
map = Hash.new { |h, k| h[k] = [] }
rev_list(branch) do |rev|
formula_at_revision(rev) do |f|
bottle = f.bottle_specification
unless bottle.checksums.empty?
map[f.pkg_version] << bottle.revision
end
end
end
map
end
def version_attributes_map(attributes, branch)
attributes_map = {}
return attributes_map if attributes.empty?
attributes.each do |attribute|
attributes_map[attribute] = Hash.new { |h, k| h[k] = [] }
end
rev_list(branch) do |rev|
formula_at_revision(rev) do |f|
attributes.each do |attribute|
map = attributes_map[attribute]
map[f.stable.version] << f.send(attribute) if f.stable
map[f.devel.version] << f.send(attribute) if f.devel
end
end
end
attributes_map
end
end
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