LGTM, thanks

On Tuesday, July 31, 2018 5:35:49 PM MSK Konstantin Belyavskiy wrote:
> During startup tarantoolctl ignores 'pid_file' option and set it to
> default value.
> This cause a fault if user tries to execute config with option set.
> In case of being started with tarantoolctl shadow this option with
> additional wrapper around box.cfg.
> 
> Changes in V2:
>  Use local defined closure instead of a global function with a
>  variable (based on @GeorgyKirichenko proposal).
> 
> Closes #3214
> ---
> ticket: https://github.com/tarantool/tarantool/issues/3214
> branch:
> https://github.com/tarantool/tarantool/tree/kbelyavs/gh-3214-tarantoolctl-p
> idfile-fix extra/dist/tarantoolctl.in |  7 +++++++
>  test/box/cfg.result        | 30 ++++++++++++++++++++++++++++++
>  test/box/cfg.test.lua      | 12 ++++++++++++
>  3 files changed, 49 insertions(+)
> 
> diff --git a/extra/dist/tarantoolctl.in b/extra/dist/tarantoolctl.in
> index 507ebe8bf..4c7dfa2f1 100755
> --- a/extra/dist/tarantoolctl.in
> +++ b/extra/dist/tarantoolctl.in
> @@ -527,6 +527,13 @@ local function start()
>          end
>          os.exit(1)
>      end
> +    local old_call = getmetatable(box.cfg).__call
> +    getmetatable(box.cfg).__call = function(old_cfg, cfg)
> +        if old_cfg.pid_file ~= nil and cfg ~= nil and cfg.pid_file ~= nil
> then +            cfg.pid_file = old_cfg.pid_file
> +        end
> +        old_call(old_cfg, cfg)
> +    end
>      return 0
>  end
> 
> diff --git a/test/box/cfg.result b/test/box/cfg.result
> index cda7aa0d3..a2df83310 100644
> --- a/test/box/cfg.result
> +++ b/test/box/cfg.result
> @@ -365,6 +365,36 @@ test_run:cmd("cleanup server cfg_tester4")
>  - true
>  ...
>  ---------------------------------------------------------------------------
> ----- +-- Check fix for pid_file option overwritten by tarantoolctl
> +---------------------------------------------------------------------------
> ----- +test_run:cmd('create server cfg_tester5 with script =
> "box/lua/cfg_test1.lua"') +---
> +- true
> +...
> +test_run:cmd("start server cfg_tester5")
> +---
> +- true
> +...
> +test_run:cmd('switch cfg_tester5')
> +---
> +- true
> +...
> +box.cfg{pid_file = "current.pid"}
> +---
> +...
> +test_run:cmd("switch default")
> +---
> +- true
> +...
> +test_run:cmd("stop server cfg_tester5")
> +---
> +- true
> +...
> +test_run:cmd("cleanup server cfg_tester5")
> +---
> +- true
> +...
> +---------------------------------------------------------------------------
> ----- -- Check that 'vinyl_dir' cfg option is not checked as long as
>  -- there is no vinyl indexes (issue #2664)
>  ---------------------------------------------------------------------------
> ----- diff --git a/test/box/cfg.test.lua b/test/box/cfg.test.lua
> index dbb463025..712a165bb 100644
> --- a/test/box/cfg.test.lua
> +++ b/test/box/cfg.test.lua
> @@ -69,6 +69,18 @@ test_run:cmd("switch default")
>  test_run:cmd("stop server cfg_tester4")
>  test_run:cmd("cleanup server cfg_tester4")
> 
> +---------------------------------------------------------------------------
> ----- +-- Check fix for pid_file option overwritten by tarantoolctl
> +---------------------------------------------------------------------------
> ----- +
> +test_run:cmd('create server cfg_tester5 with script =
> "box/lua/cfg_test1.lua"') +test_run:cmd("start server cfg_tester5")
> +test_run:cmd('switch cfg_tester5')
> +box.cfg{pid_file = "current.pid"}
> +test_run:cmd("switch default")
> +test_run:cmd("stop server cfg_tester5")
> +test_run:cmd("cleanup server cfg_tester5")
> +
>  ---------------------------------------------------------------------------
> ----- -- Check that 'vinyl_dir' cfg option is not checked as long as
>  -- there is no vinyl indexes (issue #2664)