Re: [Tarantool-patches] [PATCH v4 4/8] lua/log: do not allow to set json for boot logger

[Oleg Babin <olegrok@tarantool.org>]

Hi! Thanks for your patch see one comment below.

On 28/05/2020 13:07, Cyrill Gorcunov wrote:
> For some reason we've missed that say_set_log_format
> doesn't support json format not only for syslog but
> for boottime logging as well.
> 
> Part-of #689
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
> ---
>   src/lua/log.lua              | 7 +++++--
>   test/app-tap/logger.test.lua | 1 -
>   2 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/src/lua/log.lua b/src/lua/log.lua
> index d1d712cab..2491501f7 100644
> --- a/src/lua/log.lua
> +++ b/src/lua/log.lua
> @@ -160,8 +160,11 @@ local function log_format(name)
>       end
>   
>       if fmt_str2num[name] == ffi.C.SF_JSON then
> -        if ffi.C.log_type() == ffi.C.SAY_LOGGER_SYSLOG then
> -            error("log_format: 'json' can't be used with syslog logger")
> +        if ffi.C.log_type() == ffi.C.SAY_LOGGER_SYSLOG or
> +            ffi.C.log_type() == ffi.C.SAY_LOGGER_BOOT then
> +            local m = "log_format: %s can't be used with " ..
> +                    "syslog or boot-time logger"
> +            error(m:format(fmt_num2str[ffi.C.SF_JSON]))
>           end
>           ffi.C.say_set_log_format(ffi.C.SF_JSON)
>       else
> diff --git a/test/app-tap/logger.test.lua b/test/app-tap/logger.test.lua
> index 492d5ea0b..7bfa06e80 100755
> --- a/test/app-tap/logger.test.lua
> +++ b/test/app-tap/logger.test.lua
> @@ -5,7 +5,6 @@ test:plan(24)
>   
>   -- gh-3946: Assertion failure when using log_format() before box.cfg()
>   local log = require('log')
> -log.log_format('json')

I think you can change it to "pcall(log.log_format, 'json')" and check 
that it returns an error. Not simply drop a test case.

>   log.log_format('plain')
>   
>   --
>