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# frozen_string_literal: true
module ActionView
class CacheExpiry
class Executor
def initialize(watcher:)
@cache_expiry = CacheExpiry.new(watcher: watcher)
end
def before(target)
@cache_expiry.clear_cache_if_necessary
end
end
def initialize(watcher:)
@watched_dirs = nil
@watcher_class = watcher
@watcher = nil
@mutex = Mutex.new
end
def clear_cache_if_necessary
@mutex.synchronize do
watched_dirs = dirs_to_watch
return if watched_dirs.empty?
if watched_dirs != @watched_dirs
@watched_dirs = watched_dirs
@watcher = @watcher_class.new([], watched_dirs) do
clear_cache
end
@watcher.execute
else
@watcher.execute_if_updated
end
end
end
def clear_cache
ActionView::LookupContext::DetailsKey.clear
end
private
def dirs_to_watch
fs_paths = all_view_paths.grep(FileSystemResolver)
fs_paths.map(&:path).sort.uniq
end
def all_view_paths
ActionView::ViewPaths.all_view_paths.flat_map(&:paths)
end
end
end
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