Installer for Successional Installations

Author: Red Wine (talk, contrib)

Description

The following example demonstrates, how to create an installer that is able to download and install several programs and provided as a starting point for the subject at this forum thread.

The Code

Name "My Application" Caption 'installer caption' OutFile 'test.exe' LicenseData '${NSISDIR}\License.txt' LicenseBkColor 0xFFFFFF InstallButtonText "Next >" ShowInstDetails show XpStyle on

Page License

PageEx Custom

      Caption ': System Update Summary'
      PageCallbacks CustomCreate

PageExEnd

PageEx InstFiles

      Caption ': Mozilla Firefox Installation'
      CompletedText 'Mozilla Firefox Installation Completed'
      PageCallbacks pre1

PageExEnd

PageEx InstFiles

      Caption ': Mozilla Thunderbird Installation'
      CompletedText 'Mozilla Thunderbird Installation Completed'
      PageCallbacks pre2

PageExEnd

PageEx InstFiles

      Caption ': Prog 3 Installation'
      CompletedText 'Prog 3 Installation Completed'
      PageCallbacks pre3

PageExEnd

PageEx InstFiles

      Caption ': Prog 4 Installation'
      CompletedText 'Prog 4 Installation Completed'
      PageCallbacks pre4

PageExEnd

Section "Mozilla Firefox Installation" sec1

       # The section executed only when Firefox is not installed.
       # Add the proper code here to download + execute Firefox installer.

       DetailPrint "Please relax while downloading and installing Mozilla Firefox"

       sleep 6000 ;simulates the real code execution

SectionEnd

Section 'Mozilla Thunderbird Installation' sec2

       # The section executed only when Thunderbird is not installed.
       # Add the proper code here to download + execute Thunderbird installer.

       DetailPrint "Please relax while downloading and installing Mozilla Thunderbird"

       sleep 6000 ;simulates the real code execution

SectionEnd

Section 'Prog 3' sec3

       # The section executed only when Prog 3 is not installed.
       # Add the proper code here to download + execute Prog 3 installer.

       DetailPrint "Please relax while downloading and installing Prog 3"

       sleep 6000 ;simulates the real code execution

SectionEnd

Section 'Prog 4' sec4

       # The section executed only when Prog 4 is not installed.
       # Add the proper code here to download + execute Prog 4 installer.

       DetailPrint "Please relax while downloading and installing Prog 4"

       sleep 6000 ;simulates the real code execution

SectionEnd

function pre1

        # discover if Firefox is already installed
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Mozilla\Mozilla Firefox" "CurrentVersion"
        IfErrors done
        sectionsetflags ${sec1} 0
        SetAutoClose true
        Abort ;skip page

   done:
        SetAutoClose false
        sectionsetflags ${sec1} 1
        sectionsetflags ${sec2} 0
        sectionsetflags ${sec3} 0
        sectionsetflags ${sec4} 0

functionend

function pre2

        # discover if Thunderbird is already installed
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Mozilla\Mozilla Thunderbird" "CurrentVersion"
        IfErrors done
        sectionsetflags ${sec2} 0
        SetAutoClose true
        Abort ;skip page

   done:
        SetAutoClose false
        sectionsetflags ${sec1} 0
        sectionsetflags ${sec2} 1
        sectionsetflags ${sec3} 0
        sectionsetflags ${sec4} 0

functionend

function pre3

        # discover if Prog 3 is already installed
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Prog 3" "whatever"
        IfErrors done
        sectionsetflags ${sec3} 0
        SetAutoClose true
        Abort ;skip page

   done:
        SetAutoClose false
        sectionsetflags ${sec1} 0
        sectionsetflags ${sec2} 0
        sectionsetflags ${sec3} 1
        sectionsetflags ${sec4} 0

functionend

function pre4

        # discover if Prog 4 is already installed
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Prog 3" "whatever"
        IfErrors done
        sectionsetflags ${sec4} 0
        SetAutoClose true
        Abort ;skip page

   done:
        SetAutoClose false
        sectionsetflags ${sec1} 0
        sectionsetflags ${sec2} 0
        sectionsetflags ${sec3} 0
        sectionsetflags ${sec4} 1

functionend

function CustomCreate

        WriteIniStr '$PLUGINSDIR\custom.ini' 'Settings' 'NumFields' '2'

        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Type' 'Label'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Left' '5'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Top' '5'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Right' '-6'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Bottom' '17'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 1' 'Text' \
        'Your system needs the following updates:'

        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Mozilla\Mozilla Firefox" "CurrentVersion"
        IfErrors 0 +2
        strcpy $R0 'Mozilla Firefox\r\n'
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Mozilla\Mozilla Thunderbird" "CurrentVersion"
        IfErrors 0 +2
        strcpy $R0 '$R0Mozilla Thunderbird\r\n'
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Prog 3" "whatever"
        IfErrors 0 +2
        strcpy $R0 '$R0Prog 3\r\n'
        ClearErrors
        readregstr $1 HKLM "SOFTWARE\Prog 4" "whatever"
        IfErrors 0 +2
        strcpy $R0 '$R0Prog 4\r\n'

        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Type' 'Text'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Left' '10'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Top' '25'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Right' '-10'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Bottom' '105'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'State' '$R0'
        WriteIniStr '$PLUGINSDIR\custom.ini' 'Field 2' 'Flags' 'DISABLED|MULTILINE|NOWORDWRAP'

   push $0
   InstallOptions::Dialog '$PLUGINSDIR\custom.ini'
   pop $0

functionend

function .onInit

        initpluginsdir
        gettempfilename $0
        rename $0 '$PLUGINSDIR\custom.ini'

functionend </highlight-nsis>