Puppet Function: strftime

Defined in:
lib/puppet/parser/functions/strftime.rb
Function type:
Ruby 3.x API

Overview

strftime() ⇒ Any

This function returns formatted time.

Examples:

To return the time since epoch:

strftime("%s")

To return the date:

strftime("%Y-%m-%d")

*Format meaning:*

%a - The abbreviated weekday name (``Sun'')
%A - The  full  weekday  name (``Sunday'')
%b - The abbreviated month name (``Jan'')
%B - The  full  month  name (``January'')
%c - The preferred local date and time representation
%C - Century (20 in 2009)
%d - Day of the month (01..31)
%D - Date (%m/%d/%y)
%e - Day of the month, blank-padded ( 1..31)
%F - Equivalent to %Y-%m-%d (the ISO 8601 date format)
%h - Equivalent to %b
%H - Hour of the day, 24-hour clock (00..23)
%I - Hour of the day, 12-hour clock (01..12)
%j - Day of the year (001..366)
%k - hour, 24-hour clock, blank-padded ( 0..23)
%l - hour, 12-hour clock, blank-padded ( 0..12)
%L - Millisecond of the second (000..999)
%m - Month of the year (01..12)
%M - Minute of the hour (00..59)
%n - Newline (\n)
%N - Fractional seconds digits, default is 9 digits (nanosecond)
        %3N  millisecond (3 digits)
        %6N  microsecond (6 digits)
        %9N  nanosecond (9 digits)
%p - Meridian indicator (``AM''  or  ``PM'')
%P - Meridian indicator (``am''  or  ``pm'')
%r - time, 12-hour (same as %I:%M:%S %p)
%R - time, 24-hour (%H:%M)
%s - Number of seconds since 1970-01-01 00:00:00 UTC.
%S - Second of the minute (00..60)
%t - Tab character (\t)
%T - time, 24-hour (%H:%M:%S)
%u - Day of the week as a decimal, Monday being 1. (1..7)
%U - Week  number  of the current year,
        starting with the first Sunday as the first
        day of the first week (00..53)
%v - VMS date (%e-%b-%Y)
%V - Week number of year according to ISO 8601 (01..53)
%W - Week  number  of the current year,
        starting with the first Monday as the first
        day of the first week (00..53)
%w - Day of the week (Sunday is 0, 0..6)
%x - Preferred representation for the date alone, no time
%X - Preferred representation for the time alone, no date
%y - Year without a century (00..99)
%Y - Year with century
%z - Time zone as  hour offset from UTC (e.g. +0900)
%Z - Time zone name
%% - Literal ``%'' character

Returns:

  • (Any) 


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# File 'lib/puppet/parser/functions/strftime.rb', line 6

newfunction(:strftime, :type => :rvalue, :doc => <<-DOC
  This function returns formatted time.

  *Examples:*

  To return the time since epoch:

      strftime("%s")

  To return the date:

      strftime("%Y-%m-%d")

  *Format meaning:*

      %a - The abbreviated weekday name (``Sun'')
      %A - The  full  weekday  name (``Sunday'')
      %b - The abbreviated month name (``Jan'')
      %B - The  full  month  name (``January'')
      %c - The preferred local date and time representation
      %C - Century (20 in 2009)
      %d - Day of the month (01..31)
      %D - Date (%m/%d/%y)
      %e - Day of the month, blank-padded ( 1..31)
      %F - Equivalent to %Y-%m-%d (the ISO 8601 date format)
      %h - Equivalent to %b
      %H - Hour of the day, 24-hour clock (00..23)
      %I - Hour of the day, 12-hour clock (01..12)
      %j - Day of the year (001..366)
      %k - hour, 24-hour clock, blank-padded ( 0..23)
      %l - hour, 12-hour clock, blank-padded ( 0..12)
      %L - Millisecond of the second (000..999)
      %m - Month of the year (01..12)
      %M - Minute of the hour (00..59)
      %n - Newline (\n)
      %N - Fractional seconds digits, default is 9 digits (nanosecond)
              %3N  millisecond (3 digits)
              %6N  microsecond (6 digits)
              %9N  nanosecond (9 digits)
      %p - Meridian indicator (``AM''  or  ``PM'')
      %P - Meridian indicator (``am''  or  ``pm'')
      %r - time, 12-hour (same as %I:%M:%S %p)
      %R - time, 24-hour (%H:%M)
      %s - Number of seconds since 1970-01-01 00:00:00 UTC.
      %S - Second of the minute (00..60)
      %t - Tab character (\t)
      %T - time, 24-hour (%H:%M:%S)
      %u - Day of the week as a decimal, Monday being 1. (1..7)
      %U - Week  number  of the current year,
              starting with the first Sunday as the first
              day of the first week (00..53)
      %v - VMS date (%e-%b-%Y)
      %V - Week number of year according to ISO 8601 (01..53)
      %W - Week  number  of the current year,
              starting with the first Monday as the first
              day of the first week (00..53)
      %w - Day of the week (Sunday is 0, 0..6)
      %x - Preferred representation for the date alone, no time
      %X - Preferred representation for the time alone, no date
      %y - Year without a century (00..99)
      %Y - Year with century
      %z - Time zone as  hour offset from UTC (e.g. +0900)
      %Z - Time zone name
      %% - Literal ``%'' character
  DOC
           ) do |arguments|

  # Technically we support two arguments but only first is mandatory ...
  raise(Puppet::ParseError, "strftime(): Wrong number of arguments given (#{arguments.size} for 1)") if arguments.empty?

  format = arguments[0]

  raise(Puppet::ParseError, 'strftime(): You must provide format for evaluation') if format.empty?

  # The Time Zone argument is optional ...
  time_zone = arguments[1] if arguments[1]

  time = Time.new

  # There is probably a better way to handle Time Zone ...
  if time_zone && !time_zone.empty?
    original_zone = ENV['TZ']

    local_time = time.clone
    local_time = local_time.utc

    ENV['TZ'] = time_zone

    time = local_time.localtime

    ENV['TZ'] = original_zone
  end

  result = time.strftime(format)

  return result
end