Module: RedisLua

Defined in:
lib/redis_lua.rb,
lib/redis_lua/version.rb

Constant Summary collapse

VERSION = 
"0.1.0"

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.config_file_path ⇒ Object

Returns the value of attribute config_file_path.



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# File 'lib/redis_lua.rb', line 8

def config_file_path
  @config_file_path
end

.lua_script_path ⇒ Object

Returns the value of attribute lua_script_path.



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# File 'lib/redis_lua.rb', line 8

def lua_script_path
  @lua_script_path
end

Class Method Details

.call_script(name, *args) ⇒ Object 



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# File 'lib/redis_lua.rb', line 43

def call_script(name, *args)
  sha1 = config[name]
  Redis.current.evalsha(sha1, *args)
end

.config ⇒ Object 



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# File 'lib/redis_lua.rb', line 10

def config
  @config ||= load_config(config_file_path)
end

.load_config(file_path) ⇒ Object 



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# File 'lib/redis_lua.rb', line 14

def load_config(file_path)
  YAML.load(File.read(file_path))
end

.load_script(name) ⇒ Object 



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# File 'lib/redis_lua.rb', line 29

def load_script(name)
  script = read_script(name)
  sha1 = Digest::SHA1.hexdigest(script)
  if sha1 == config[name]
    Redis.current.script(:load, script)
  else
    raise "sha1 digest mismatch: #{key} #{sha1}"
  end
end

.load_scripts ⇒ Object 



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# File 'lib/redis_lua.rb', line 23

def load_scripts
  config.each do |key, _|
    load_script(key)
  end
end

.loaded_script?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/redis_lua.rb', line 39

def loaded_script?(name)
  Redis.current.script(:exists, config[name])
end

.read_script(name) ⇒ Object 



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# File 'lib/redis_lua.rb', line 18

def read_script(name)
  file_path = Pathname.new(lua_script_path) + "#{name}.lua"
  File.read(file_path)
end