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# frozen_string_literal: true
module Spec
module Checksums
class ChecksumsBuilder
def initialize(enabled = true, &block)
@enabled = enabled
@checksums = {}
yield self if block_given?
end
def initialize_copy(original)
super
@checksums = @checksums.dup
end
def checksum(repo, name, version, platform = Gem::Platform::RUBY)
name_tuple = Gem::NameTuple.new(name, version, platform)
gem_file = File.join(repo, "gems", "#{name_tuple.full_name}.gem")
File.open(gem_file, "rb") do |f|
register(name_tuple, Bundler::Checksum.from_gem(f, "#{gem_file} (via ChecksumsBuilder#checksum)"))
end
end
def no_checksum(name, version, platform = Gem::Platform::RUBY)
name_tuple = Gem::NameTuple.new(name, version, platform)
register(name_tuple, nil)
end
def delete(name, platform = nil)
@checksums.reject! {|k, _| k.name == name && (platform.nil? || k.platform == platform) }
end
def to_s
return "" unless @enabled
locked_checksums = @checksums.map do |name_tuple, checksum|
checksum &&= " #{checksum.to_lock}"
" #{name_tuple.lock_name}#{checksum}\n"
end
"\nCHECKSUMS\n#{locked_checksums.sort.join}"
end
private
def register(name_tuple, checksum)
delete(name_tuple.name, name_tuple.platform)
@checksums[name_tuple] = checksum
end
end
def checksums_section(enabled = true, &block)
ChecksumsBuilder.new(enabled, &block)
end
def checksums_section_when_existing(&block)
begin
enabled = lockfile.match?(/^CHECKSUMS$/)
rescue Errno::ENOENT
enabled = false
end
checksums_section(enabled, &block)
end
def checksum_to_lock(*args)
checksums_section do |c|
c.checksum(*args)
end.to_s.sub(/^CHECKSUMS\n/, "").strip
end
def checksum_digest(*args)
checksum_to_lock(*args).split(Bundler::Checksum::ALGO_SEPARATOR, 2).last
end
# if prefixes is given, removes all checksums where the line
# has any of the prefixes on the line before the checksum
# otherwise, removes all checksums from the lockfile
def remove_checksums_from_lockfile(lockfile, *prefixes)
head, remaining = lockfile.split(/^CHECKSUMS$/, 2)
return lockfile unless remaining
checksums, tail = remaining.split("\n\n", 2)
prefixes =
if prefixes.empty?
nil
else
/(#{prefixes.map {|p| Regexp.escape(p) }.join("|")})/
end
checksums = checksums.each_line.map do |line|
if prefixes.nil? || line.match?(prefixes)
line.gsub(/ sha256=[a-f0-9]{64}/i, "")
else
line
end
end
head.concat(
"CHECKSUMS",
checksums.join,
"\n\n",
tail
)
end
def remove_checksums_section_from_lockfile(lockfile)
head, remaining = lockfile.split(/^CHECKSUMS$/, 2)
return lockfile unless remaining
_checksums, tail = remaining.split("\n\n", 2)
head.concat(tail)
end
end
end
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