There seem to have been a bunch of filesystem-related releases
recently. So I'm not sure if one of them would address my problem
better than something that's in the standard library.
I'm starting a bunch of applications and need to write their stdout
and stderr to logs. Log files are stored at /<some_base_path>/<user
/<application name>.log.
What's the simplest way of creating all those directories (assuming
that none of them exist)?
require 'fileutils'
FileUtils::mkdir_p 'dir'
you don't need to care if it exsts and all subdirs are created on the fly.
cheers.
-a
On Sat, 24 Sep 2005, Joe Van Dyk wrote:
There seem to have been a bunch of filesystem-related releases
recently. So I'm not sure if one of them would address my problem
better than something that's in the standard library.I'm starting a bunch of applications and need to write their stdout
and stderr to logs. Log files are stored at /<some_base_path>/<user
>/<application name>.log.What's the simplest way of creating all those directories (assuming
that none of them exist)?
email :: ara [dot] t [dot] howard [at] noaa [dot] gov
phone :: 303.497.6469
Your life dwells amoung the causes of death
Like a lamp standing in a strong breeze. --Nagarjuna
===============================================================================
Thanks!
And a related question: Every time I start an application, I want to
write to a new log file. But I want to keep the old log files around
(i.e. rotate them). Can I do that with Logger? I see options for
rotating when a log file gets to a certain size or on a daily, weekly,
monthly basis, but not when I'm creating a new one.
On 9/23/05, Ara.T.Howard <Ara.T.Howard@noaa.gov> wrote:
On Sat, 24 Sep 2005, Joe Van Dyk wrote:
> There seem to have been a bunch of filesystem-related releases
> recently. So I'm not sure if one of them would address my problem
> better than something that's in the standard library.
>
> I'm starting a bunch of applications and need to write their stdout
> and stderr to logs. Log files are stored at /<some_base_path>/<user
> >/<application name>.log.
>
> What's the simplest way of creating all those directories (assuming
> that none of them exist)?require 'fileutils'
FileUtils::mkdir_p 'dir'you don't need to care if it exsts and all subdirs are created on the fly.
require 'logger'
logger = Logger:new 'log', log_age
# or
logger = Logger:new 'log', log_age, log_size
# log_age can be daily|weekly|monthly|number_of_days
whammo. log rolling.
-a
On Sat, 24 Sep 2005, Joe Van Dyk wrote:
On 9/23/05, Ara.T.Howard <Ara.T.Howard@noaa.gov> wrote:
On Sat, 24 Sep 2005, Joe Van Dyk wrote:
There seem to have been a bunch of filesystem-related releases
recently. So I'm not sure if one of them would address my problem
better than something that's in the standard library.I'm starting a bunch of applications and need to write their stdout
and stderr to logs. Log files are stored at /<some_base_path>/<user
>/<application name>.log.What's the simplest way of creating all those directories (assuming
that none of them exist)?require 'fileutils'
FileUtils::mkdir_p 'dir'you don't need to care if it exsts and all subdirs are created on the fly.
Thanks!
And a related question: Every time I start an application, I want to write
to a new log file. But I want to keep the old log files around (i.e. rotate
them). Can I do that with Logger? I see options for rotating when a log
file gets to a certain size or on a daily, weekly, monthly basis, but not
when I'm creating a new one.
email :: ara [dot] t [dot] howard [at] noaa [dot] gov
phone :: 303.497.6469
Your life dwells amoung the causes of death
Like a lamp standing in a strong breeze. --Nagarjuna
===============================================================================
You might want to re-read my question.
Every time I start the application, I want to create a new log file
and rotate the old ones (say, keep the last 10). I did see the
options for rotating on size and by date. But I didn't see an option
for rolling the log for every new application launch.
So, if I start the application 5 times, there should be five log files.
On 9/23/05, Ara.T.Howard <Ara.T.Howard@noaa.gov> wrote:
On Sat, 24 Sep 2005, Joe Van Dyk wrote:
> On 9/23/05, Ara.T.Howard <Ara.T.Howard@noaa.gov> wrote:
>> On Sat, 24 Sep 2005, Joe Van Dyk wrote:
>>
>>> There seem to have been a bunch of filesystem-related releases
>>> recently. So I'm not sure if one of them would address my problem
>>> better than something that's in the standard library.
>>>
>>> I'm starting a bunch of applications and need to write their stdout
>>> and stderr to logs. Log files are stored at /<some_base_path>/<user
>>> >/<application name>.log.
>>>
>>> What's the simplest way of creating all those directories (assuming
>>> that none of them exist)?
>>
>> require 'fileutils'
>> FileUtils::mkdir_p 'dir'
>>
>> you don't need to care if it exsts and all subdirs are created on the fly.
>
>
> Thanks!
>
> And a related question: Every time I start an application, I want to write
> to a new log file. But I want to keep the old log files around (i.e. rotate
> them). Can I do that with Logger? I see options for rotating when a log
> file gets to a certain size or on a daily, weekly, monthly basis, but not
> when I'm creating a new one.require 'logger'
logger = Logger:new 'log', log_age
# or
logger = Logger:new 'log', log_age, log_size
# log_age can be daily|weekly|monthly|number_of_days
whammo. log rolling.
oops.
Every time I start the application, I want to create a new log file and
rotate the old ones (say, keep the last 10). I did see the options for
rotating on size and by date. But I didn't see an option for rolling the
log for every new application launch.So, if I start the application 5 times, there should be five log files.
perhaps:
jib:~/tmp > ruby -e' print ARGF.read ' a.rb
require 'logger'
force_roll = Logger::new 'log', 7, 0
force_roll << ''
force_roll.close
logger = Logger::new 'log', 7
logger.info{ Process::pid }
jib:~/tmp > ruby -e' p Dir[ "log*" ] '
jib:~/tmp > ruby -e' 10.times{ load "a.rb" } '
jib:~/tmp > ruby -e' p Dir[ "log*" ] '
["log", "log.0", "log.1", "log.2", "log.3", "log.4", "log.5"]
but kinda hackish...
hth.
-a