eredhal
31st May 2012 10:56 UTC

Reading variables from file unseen in sections.
Hello, for some time already im using NSIS. Since now i used only hardcodded method for names and paths for the installation. Now i wanted to make universal installtion with config file, for names in my installation file. Sadly i got big issue with some variables.

Thats what i do :

MainFile.nsh
Name $AppName
!define APP_NAME $(^Name)
!define COMPANYNAME $CompanyName
Function .onInit
        ClearErrors
        Delete $TEMP\Company\install.log
        InitPluginsDir
        Push $R1
    File /oname=$PLUGINSDIR\spltmp.bmp "${NSISDIR}\Contrib\Graphics\Header\splash.bmp"
    advsplash::show 1000 600 400 -1 $PLUGINSDIR\spltmp
    Pop $R1
    Pop $R1
    !insertmacro MULTIUSER_INIT
        Iffileexists "$EXEDIR\setup.ini" 0 onInitNoFile
        !insertmacro "ReadSetupINI"
        CreateDirectory "$INSTDIR\$(^Name)"
        !insertmacro Logger "INFO" "Installation started, reading setup.ini"
        Iferrors 0 onInitSetLang
        !insertmacro Logger "INFO" "Setup.ini read cause an error."
        Goto onInitSetLang
        onInitNoFile:
        !insertmacro Logger "ERROR" "Setup.ini file doesn't exist loading default values"
        onInitSetLang:
        ${SetLanguage} $Lang
        StrCpy $LiczSerial "1"
        !insertmacro Logger "INFO" "Language has been set up to $Lang($LANGUAGE)"
        !insertmacro Logger "INFO" "Initialisation complete, proceed with user interface."
FunctionEnd

Thats where i want to read setup.ini, macroes(shorten) :

!define ReadSetupini "!insertmacro ReadSetupini"
!macro ReadSetupini
Clearerrors
${ReadSetupKey} $R0 "Startup" "CompanyName" "CompanyName"
${ReadSetupKey} $R0 "Startup" "Appname" "AppName"
${ReadSetupKey} $R0 "Startup" "ProductGUID"  "ProductGUID"
${ReadSetupKey} $R0 "Languages" "Default" "Lang"
!macroend

!define ReadSetupKey "!insertmacro ReadSetupKey"
!macro ReadSetupKey Var Sect Key Def
   ClearErrors
   ReadINIStr ${Var} ${SETUP_INI} ${Sect} ${Key}
   Var /GLOBAL ${Def} 
   StrCpy $${Def} "${Var}"
   StrCmpS "${Key}" "CompanyName" "${Key}jump" 0
   !insertmacro Logger "INFO" "Setup.ini: Definition ${Def} is set to ${Var}"
   Goto "${Key}jumpend"
   ${Key}jump:
   StrCmpS $CompanyName "" 0 +2
   StrCpy $CompanyName "Ontia"
   CreateDirectory $TEMP\$CompanyName
   !insertmacro Logger "INFO" "Setup.ini: Definition of ${Def} wasn't set up properly, using default value"
   ${Key}jumpend:
!macroend

For what i see, when i copy $AppName into (^Name) i can use it anywhere. However, when i get $CompanyName from a file i can use it only in .onInit. When i get into first Section and then i call Macro Logger, it shows that $CompanyName is empty(returns $CompanyName while using MessageBox)

!define Logger "!insertmacro Logger"
!macro Logger Type Message
        ${GetTime} "" "L" $0 $1 $2 $3 $4 $5 $6
        nsislog::log "$TEMP\${COMPANYNAME}\install.log" "$4:$5:$6 ${Type} ${Message}"
!macroend

whatever i use ${CompanyName} or $CompanyName its empty and returns only those ${x} / $x

If you ask why i did this that way, i need to make about 5 different installers, very similiar but i need them to read from file different values, and ReadSetupINI make it easier to use then setting variables inside MainFile.nsh.

I hope that i shown clearly what i need :)