Class: Tebako::NativeGemCache

Inherits:
Object
  • Object
show all
Defined in:
lib/tebako/native_gem_cache.rb

Overview

Stores one installed native extension at a time for reuse across lockfiles.

Defined Under Namespace

Classes: LockedSpec

Constant Summary collapse

SCHEMA_VERSION = 
1
BUILD_ENVIRONMENT = 
%w[CC CXX CFLAGS CXXFLAGS CPPFLAGS LDFLAGS ARCHFLAGS].freeze

Instance Method Summary collapse

Constructor Details

#initialize(cache_dir:, gem_home:, lockfile:, ruby_version:) ⇒ NativeGemCache

Returns a new instance of NativeGemCache.



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# File 'lib/tebako/native_gem_cache.rb', line 26

def initialize(cache_dir:, gem_home:, lockfile:, ruby_version:)
  @cache_dir = cache_dir
  @gem_home = gem_home
  @lockfile = lockfile
  @ruby_version = ruby_version
end

Instance Method Details

#restore ⇒ Object 



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# File 'lib/tebako/native_gem_cache.rb', line 33

def restore
  return 0 unless @cache_dir

  specs = locked_specs
  return 0 if specs.empty?

  FileUtils.mkdir_p(@cache_dir)
  restored = specs.count { |spec| restore_spec(spec) }
  Tebako::BuildReporter.record(
    stage: "native_gems",
    status: restored.positive? ? "reused" : "missed",
    reason: "#{restored} cached native gem artifact#{"s" unless restored == 1} restored"
  )
  restored
end

#save ⇒ Object 



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# File 'lib/tebako/native_gem_cache.rb', line 49

def save
  return 0 unless @cache_dir

  specs_by_name = locked_specs.group_by { |spec| [spec.name, spec.version.to_s] }
  return 0 if specs_by_name.empty?

  saved = installed_native_specs.count do |installed|
    requested = specs_by_name[[installed.name, installed.version.to_s]]&.first
    requested && save_spec(installed, requested)
  end
  Tebako::BuildReporter.record(
    stage: "native_gems",
    status: "saved",
    reason: "#{saved} native gem artifact#{"s" unless saved == 1} available for reuse"
  )
  saved
end