Class: Yast::MiscClass

Inherits:
Module
  • Object
show all
Defined in:
library/general/src/modules/Misc.rb

Instance Method Summary collapse

Instance Method Details

#CustomSysconfigRead(key, defval, location) ⇒ Object

Try to read value from sysconfig file and return the result if successful. Function reads from arbitrary sysconfig file, for which the agent doesn't exist: e.g. from different partition like /mnt/etc/sysconfig/file.

Examples:

Misc::CustomSysconfigRead ("INSTALLED_LANGUAGES", "", Installation::destdir + "/etc/sysconfig/language");


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# File 'library/general/src/modules/Misc.rb', line 200

def CustomSysconfigRead(key, defval, location)
  return defval if location == ""

  custom_path = Builtins.topath(location)
  SCR.RegisterAgent(
    custom_path,
    term(:ag_ini, term(:SysConfigFile, location))
  )
  ret = SysconfigRead(Builtins.add(custom_path, key), defval)
  SCR.UnregisterAgent(custom_path)
  ret
end

#hardware_name(hardware_entry) ⇒ String

common function to extract 'name' of hardware


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# File 'library/general/src/modules/Misc.rb', line 64

def hardware_name(hardware_entry)
  hardware_entry = deep_copy(hardware_entry)
  sub_vendor = Ops.get_string(hardware_entry, "sub_vendor", "")
  sub_device = Ops.get_string(hardware_entry, "sub_device", "")

  return Ops.add(Ops.add(sub_vendor, "\n"), sub_device) if sub_vendor != "" && sub_device != ""

  vendor = Ops.get_string(hardware_entry, "vendor", "")

  Ops.add(
    Ops.add(vendor, (vendor != "") ? "\n" : ""),
    Ops.get_string(hardware_entry, "device", "")
  )
end

#mainObject


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# File 'library/general/src/modules/Misc.rb', line 34

def main
  Yast.import "UI"

  Yast.import "Mode"

  # Message after finishing installation and before the system
  # boots for the first time.
  #
  @boot_msg = ""
end

#ReadAlternateFile(first, second) ⇒ Object

try to read first file, if it doesn't exist, read second files must reside below /usr/lib/YaST2 files must have ycp syntax


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# File 'library/general/src/modules/Misc.rb', line 53

def ReadAlternateFile(first, second)
  result = SCR.Read(path(".target.yast2"), [first, nil])
  result = SCR.Read(path(".target.yast2"), second) if result.nil?
  deep_copy(result)
end

#SplitOptions(options, optmap) ⇒ Hash

MergeOptions Merges "opt1=val1 opt2=val2 ..." and $["opta":"vala", ..."] to $["opt1":"val1", "opt2":"val2", "opta":"vala", ...] as needed by modules.conf agent


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# File 'library/general/src/modules/Misc.rb', line 135

def SplitOptions(options, optmap)
  optmap = deep_copy(optmap)  # step 1: split "opt1=val1 opt2=val2 ..."
  # to ["opt1=val1", "opt2=val2", "..."]


  options_split = Builtins.splitstring(options, " ")

  Builtins.foreach(options_split) do |options_element|
    options_values = Builtins.splitstring(options_element, "=")
    if Builtins.size(options_values) == 1 &&
        Ops.get_string(optmap, options_element, "") == ""      # single argument

      Ops.set(optmap, options_element, "")
    elsif Builtins.size(options_values) == 2      # argument with value

      Ops.set(
        optmap,
        Ops.get_string(options_values, 0, ""),
        Ops.get_string(options_values, 1, "")
      )
    end
  end
  deep_copy(optmap)
end

#SysconfigRead(sysconfig_path, defaultv) ⇒ Object

SysconfigRead()

Try an SCR::Read(...) and return the result if successful. On failure return the the second parameter (default value)


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# File 'library/general/src/modules/Misc.rb', line 172

def SysconfigRead(sysconfig_path, defaultv)
  local_ret = Convert.to_string(SCR.Read(sysconfig_path))

  if local_ret.nil?
    Builtins.y2warning(
      "Failed reading '%1', using default value",
      sysconfig_path
    )
    return defaultv
  else
    Builtins.y2milestone("%1: '%2'", sysconfig_path, local_ret)
    return local_ret
  end
end

#SysconfigWrite(level, values) ⇒ Boolean

SysconfigWrite() write list of sysyconfig entries via rcconfig agent


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# File 'library/general/src/modules/Misc.rb', line 105

def SysconfigWrite(level, values)
  values = deep_copy(values)
  result = true
  level = if level == path(".")
    path(".sysconfig")
  else
    Ops.add(path(".sysconfig"), level)
  end

  Builtins.foreach(values) do |entry|
    if Builtins.size(entry) != 2
      Builtins.y2error("bad entry in rc_write()")
    elsif !SCR.Write(
      Ops.add(level, Ops.get_path(entry, 0, path("."))),
      Ops.get_string(entry, 1, "")
    )
      result = false
    end
  end
  result
end

#translate(lmap, lang) ⇒ String

Define a macro that looks up a localized string in a language map of the form $[ "default" : "Defaultstring", "de" : "German....", ...]


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# File 'library/general/src/modules/Misc.rb', line 88

def translate(lmap, lang)
  lmap = deep_copy(lmap)
  t = Ops.get_string(lmap, lang, "")
  t = Ops.get_string(lmap, Builtins.substring(lang, 0, 2), "") if Builtins.size(t) == 0 && Ops.greater_than(Builtins.size(lang), 2)
  t = Ops.get_string(lmap, "default", "") if Builtins.size(t) == 0

  t
end