module-inifile/lib/puppet/util/setting_value.rb
Michal Růžička 560bbc622f Add quote_char parameter to the ini_subsetting resource type
The quote_char is used to quote the entire setting when it is modified
as a result of changes to some subsettings.

For an example let's assume we have a setting of this form:
  JAVA_ARGS=-Xmx256m
and we want to add the '-Xms' parameter to the setting, for that purpose
we define a resource like this:
  ini_subsetting { '-Xms':
    ensure     => present,
    path       => '/some/config/file',
    section    => '',
    setting    => 'JAVA_ARGS',
    subsetting => '-Xms'
    value      => '256m',
  }
which results into the following setting:
  JAVA_ARGS=-Xmx256m -Xms256m
But this is not what we intended - if this setting is read by the bash
shell the '-Xms256m' parameter is interpreted as a command to be
executed rather than a value to be assigned to the JAVA_ARGS variable.

To fix this problem the quote_char parameter was added to the
ini_subsetting resource type, and we'll take advantage of it to fix the
problem in the above example like so:
  ini_subsetting { '-Xms':
    ensure     => present,
    path       => '/some/config/file',
    section    => '',
    setting    => 'JAVA_ARGS',
    quote_char => '"',
    subsetting => '-Xms'
    value      => '256m',
  }
which will result into:
  JAVA_ARGS="-Xmx256m -Xms256m"
which is what we intended.
2014-05-07 17:04:43 +02:00

95 líneas
2,3 KiB
Ruby

module Puppet
module Util
class SettingValue
def initialize(setting_value, subsetting_separator = ' ', default_quote_char = nil)
@setting_value = setting_value
@subsetting_separator = subsetting_separator
default_quote_char ||= ''
if @setting_value
unquoted, @quote_char = unquote_setting_value(setting_value)
@subsetting_items = unquoted.scan(Regexp.new("(?:(?:[^\\#{@subsetting_separator}]|\\.)+)")) # an item can contain escaped separator
@subsetting_items.map! { |item| item.strip }
@quote_char = default_quote_char if @quote_char.empty?
else
@subsetting_items = []
@quote_char = default_quote_char
end
end
def unquote_setting_value(setting_value)
quote_char = ""
if (setting_value.start_with?('"') and setting_value.end_with?('"'))
quote_char = '"'
elsif (setting_value.start_with?("'") and setting_value.end_with?("'"))
quote_char = "'"
end
unquoted = setting_value
if (quote_char != "")
unquoted = setting_value[1, setting_value.length - 2]
end
[unquoted, quote_char]
end
def get_value
result = ""
first = true
@subsetting_items.each { |item|
result << @subsetting_separator unless first
result << item
first = false
}
@quote_char + result + @quote_char
end
def get_subsetting_value(subsetting)
value = nil
@subsetting_items.each { |item|
if(item.start_with?(subsetting))
value = item[subsetting.length, item.length - subsetting.length]
break
end
}
value
end
def add_subsetting(subsetting, subsetting_value)
new_item = subsetting + (subsetting_value || '')
found = false
@subsetting_items.map! { |item|
if item.start_with?(subsetting)
value = new_item
found = true
else
value = item
end
value
}
unless found
@subsetting_items.push(new_item)
end
end
def remove_subsetting(subsetting)
@subsetting_items = @subsetting_items.map { |item| item.start_with?(subsetting) ? nil : item }.compact
end
end
end
end