Two installations in one installer

Author: Afrow UK (talk, contrib)

Description

This script shows how we can install two programs with one installer, where each program has its own Directory and InstFiles page. Obviously we still have the single Components page though, as if we chose to have two then we'd might as well make two installer exe's!

The Script

Here's the code. You can compile this script straight off. I've added MessageBox's to test it.

Name "Multiple InstFiles"
OutFile "multi-install.exe"
 
!include MUI.nsh
!include Sections.nsh
 
##===========================================================================
## Modern UI Pages
##===========================================================================
 
!insertmacro MUI_PAGE_WELCOME
 
!define MUI_PAGE_CUSTOMFUNCTION_PRE SelectFilesCheck
!define MUI_PAGE_CUSTOMFUNCTION_LEAVE ComponentsLeave
!insertmacro MUI_PAGE_COMPONENTS
 
## This is the title on the first Directory page
!define MUI_DIRECTORYPAGE_TEXT_TOP "$(MUI_DIRECTORYPAGE_TEXT_TOP_A)"
 
!define MUI_PAGE_CUSTOMFUNCTION_PRE SelectFilesA
!insertmacro MUI_PAGE_DIRECTORY
!insertmacro MUI_PAGE_INSTFILES
 
## This is the title on the second Directory page
!define MUI_DIRECTORYPAGE_TEXT_TOP "$(MUI_DIRECTORYPAGE_TEXT_TOP_B)"
 
!define MUI_PAGE_CUSTOMFUNCTION_PRE SelectFilesB
!insertmacro MUI_PAGE_DIRECTORY
!insertmacro MUI_PAGE_INSTFILES
 
!define MUI_PAGE_CUSTOMFUNCTION_LEAVE DeleteSectionsINI
!insertmacro MUI_PAGE_FINISH
 
!insertmacro MUI_LANGUAGE "English"
 
##===========================================================================
## Language strings
##===========================================================================
 
LangString NoSectionsSelected ${LANG_ENGLSH} "You haven't selected any sections!"
 
LangString MUI_DIRECTORYPAGE_TEXT_TOP_A ${LANG_ENGLSH} "Setup will install \
Program #1 in the following folder..."
LangString MUI_DIRECTORYPAGE_TEXT_TOP_B ${LANG_ENGLSH} "Setup will install \
Program #2 in the following folder..."
 
##===========================================================================
## Start sections
##===========================================================================
 
## Sections Group 1
SectionGroup /e "Program #1" PROG1 
Section "Main" SEC1
 ##All the files in Group 1 will be installed to the same location, $INSTDIR
 SetOutPath "$INSTDIR"
 ## Main files to install here
 
messagebox mb_ok sec1
 
SectionEnd
 
Section "Other" SEC2
 ## Other files to install here
 
messagebox mb_ok sec2
 
SectionEnd
 
SectionGroupEnd
 
Section "-FixSilent"
 Call FixSilentProg2
SectionEnd
 
## Sections Group 2
SectionGroup /e "Program #2" PROG2
 
Section "Main" SEC3
 ##All the files in Group 2 will be installed to the same location, $INSTDIR
 SetOutPath "$INSTDIR"
 ## Main files to install here
 
messagebox mb_ok sec3
 
SectionEnd
 
Section "Other" SEC4
 ## Other files to install here
 
messagebox mb_ok sec4
 
SectionEnd
 
SectionGroupEnd
 
##===========================================================================
## Settings
##===========================================================================
 
!define PROG1_InstDir    "C:\PROG1"
!define PROG1_StartIndex ${PROG1}
!define PROG1_EndIndex   ${SEC2}
 
!define PROG2_InstDir "C:\PROG2"
!define PROG2_StartIndex ${PROG2}
!define PROG2_EndIndex   ${SEC4}
 
##===========================================================================
## Please don't modify below here unless you're a NSIS 'wiz-kid'
##===========================================================================
 
## Create $PLUGINSDIR
Function .onInit
 InitPluginsDir
 ${If} ${Silent}
  StrCpy $InstDir ${PROG1_InstDir}
 ${EndIf}
FunctionEnd
 
Function FixSilentProg2
 ${If} ${Silent}
  StrCpy $InstDir ${PROG2_InstDir}
 ${EndIf}
FunctionEnd
 
## If user goes back to this page from 1st Directory page
## we need to put the sections back to how they were before
Var IfBack
Function SelectFilesCheck
 StrCmp $IfBack 1 0 NoCheck
  Call ResetFiles
 NoCheck:
FunctionEnd
 
## Also if no sections are selected, warn the user!
Function ComponentsLeave
Push $R0
Push $R1
 
 Call IsPROG1Selected
  Pop $R0
 Call IsPROG2Selected
  Pop $R1
 StrCmp $R0 1 End
 StrCmp $R1 1 End
  Pop $R1
  Pop $R0
 MessageBox MB_OK|MB_ICONEXCLAMATION "$(NoSectionsSelected)"
 Abort
 
End:
Pop $R1
Pop $R0
FunctionEnd
 
Function IsPROG1Selected
Push $R0
Push $R1
 
 StrCpy $R0 ${PROG1_StartIndex} # Group 1 start
 
  Loop:
   IntOp $R0 $R0 + 1
   SectionGetFlags $R0 $R1			# Get section flags
    IntOp $R1 $R1 & ${SF_SELECTED}
    StrCmp $R1 ${SF_SELECTED} 0 +3		# If section is selected, done
     StrCpy $R0 1
     Goto Done
    StrCmp $R0 ${PROG1_EndIndex} 0 Loop
 
 Done:
Pop $R1
Exch $R0
FunctionEnd
 
Function IsPROG2Selected
Push $R0
Push $R1
 
 StrCpy $R0 ${PROG2_StartIndex}    # Group 2 start
 
  Loop:
   IntOp $R0 $R0 + 1
   SectionGetFlags $R0 $R1			# Get section flags
    IntOp $R1 $R1 & ${SF_SELECTED}
    StrCmp $R1 ${SF_SELECTED} 0 +3		# If section is selected, done
     StrCpy $R0 1
     Goto Done
    StrCmp $R0 ${PROG2_EndIndex} 0 Loop
 
 Done:
Pop $R1
Exch $R0
FunctionEnd
 
## Here we are selecting first sections to install
## by unselecting all the others!
Function SelectFilesA
 
 # If user clicks Back now, we will know to reselect Group 2's sections for
 # Components page
 StrCpy $IfBack 1
 
 # We need to save the state of the Group 2 Sections
 # for the next InstFiles page
Push $R0
Push $R1
 
 StrCpy $R0 ${PROG2_StartIndex} # Group 2 start
 
  Loop:
   IntOp $R0 $R0 + 1
   SectionGetFlags $R0 $R1				    # Get section flags
    WriteINIStr "$PLUGINSDIR\sections.ini" Sections $R0 $R1 # Save state
    !insertmacro UnselectSection $R0			    # Then unselect it
    StrCmp $R0 ${PROG2_EndIndex} 0 Loop
 
 # Don't install prog 1?
 Call IsPROG1Selected
 Pop $R0
 StrCmp $R0 1 +4
  Pop $R1
  Pop $R0
  Abort
 
 # Set current $INSTDIR to PROG1_InstDir define
 StrCpy $INSTDIR "${PROG1_InstDir}"
 
Pop $R1
Pop $R0
FunctionEnd
 
## Here we need to unselect all Group 1 sections
## and then re-select those in Group 2 (that the user had selected on
## Components page)
Function SelectFilesB
Push $R0
Push $R1
 
 StrCpy $R0 ${PROG1_StartIndex}    # Group 1 start
 
  Loop:
   IntOp $R0 $R0 + 1
    !insertmacro UnselectSection $R0		# Unselect it
    StrCmp $R0 ${PROG1_EndIndex} 0 Loop
 
 Call ResetFiles
 
 # Don't install prog 2?
 Call IsPROG2Selected
 Pop $R0
 StrCmp $R0 1 +4
  Pop $R1
  Pop $R0
  Abort
 
 # Set current $INSTDIR to PROG2_InstDir define
 StrCpy $INSTDIR "${PROG2_InstDir}"
 
Pop $R1
Pop $R0
FunctionEnd
 
## This will set all sections to how they were on the components page
## originally
Function ResetFiles
Push $R0
Push $R1
 
 StrCpy $R0 ${PROG2_StartIndex}    # Group 2 start
 
  Loop:
   IntOp $R0 $R0 + 1
   ReadINIStr "$R1" "$PLUGINSDIR\sections.ini" Sections $R0 # Get sec flags
    SectionSetFlags $R0 $R1				  # Re-set flags for this sec
    StrCmp $R0 ${PROG2_EndIndex} 0 Loop
 
Pop $R1
Pop $R0
FunctionEnd
 
## Here we are deleting the temp INI file at the end of installation
Function DeleteSectionsINI
 FlushINI "$PLUGINSDIR\Sections.ini"
 Delete "$PLUGINSDIR\Sections.ini"
FunctionEnd

If you need some help, feel free to PM me (Afrow UK) via the NSIS forums.

-Stu