; Install SCM on Windows for current user
; Basic script generated by the HM NIS Edit Script Wizard.
; Augmented by Jerry van Dijk, february 2007
; placed in the public domain

; *** version numbers ***
!define PRODUCT_VERSION "5f4-1"
!define REQ_SLIB_VERSION "3c1-1"

; ----------------[ NO CHANGES BELOW ]----------------

; *** unless files are added or removed ***
; *** remember to edit both 'file' and 'delete' sections!

; *** registry settings ***
!define KEY_VERSION "version"
!define SCM_KEY "Software\Voluntocracy\scm"
!define SLIB_KEY "Software\Voluntocracy\slib"

; HM NIS Edit Wizard helper defines
!define PRODUCT_NAME "SCM"
!define PRODUCT_COMPANY "Voluntocracy"
!define PRODUCT_PUBLISHER "Aubrey Jaffer"
!define PRODUCT_WEB_SITE "http://people.csail.mit.edu/jaffer/SCM.html"
!define PRODUCT_DIR_REGKEY "Software\Microsoft\Windows\CurrentVersion\App Paths\scm-${PRODUCT_VERSION}.exe"
!define PRODUCT_UNINST_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}"
!define PRODUCT_UNINST_ROOT_KEY "HKLM"
!define PRODUCT_STARTMENU_REGVAL "NSIS:StartMenuDir"

; MUI 1.67 compatible ------
!include "MUI.nsh"

; MUI Settings
!define MUI_ABORTWARNING
!define MUI_ICON "SCM.ico"
!define MUI_UNICON "${NSISDIR}\Contrib\Graphics\Icons\modern-uninstall.ico"

; Welcome page
!insertmacro MUI_PAGE_WELCOME

; License page
!insertmacro MUI_PAGE_LICENSE "COPYING"

; Directory page
!insertmacro MUI_PAGE_DIRECTORY

; Start menu page
var ICONS_GROUP
!define MUI_STARTMENUPAGE_NODISABLE
!define MUI_STARTMENUPAGE_DEFAULTFOLDER "scm"
!define MUI_STARTMENUPAGE_REGISTRY_ROOT "${PRODUCT_UNINST_ROOT_KEY}"
!define MUI_STARTMENUPAGE_REGISTRY_KEY "${PRODUCT_UNINST_KEY}"
!define MUI_STARTMENUPAGE_REGISTRY_VALUENAME "${PRODUCT_STARTMENU_REGVAL}"
!insertmacro MUI_PAGE_STARTMENU Application $ICONS_GROUP

; Instfiles page
!insertmacro MUI_PAGE_INSTFILES

; Finish page
!insertmacro MUI_PAGE_FINISH

; Uninstaller pages
!insertmacro MUI_UNPAGE_INSTFILES

; Language files
!insertmacro MUI_LANGUAGE "English"

; MUI end ------

Name "${PRODUCT_NAME} ${PRODUCT_VERSION}"
OutFile "scm-${PRODUCT_VERSION}.exe"
InstallDir "$PROGRAMFILES\scm"
InstallDirRegKey ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_DIR_REGKEY}" ""
ShowInstDetails show
ShowUnInstDetails show

; Check that the correct slib is installed, and no other scm version is present
Function .onInit
; Check that slib is installed
  ClearErrors
  ReadRegStr $0 ${PRODUCT_UNINST_ROOT_KEY} "${SLIB_KEY}" "${KEY_VERSION}"
  IfErrors 0 +3
  MessageBox MB_OK|MB_ICONSTOP "No SLIB found. Please install SLIB before installing SCM."
  Abort

; ; Check that the correct slib is installed
;   StrCmp $0 ${REQ_SLIB_VERSION} +3 0
;   MessageBox MB_OK|MB_ICONSTOP "Found SLIB version $0. SCM ${PRODUCT_VERSION} requires SLIB ${REQ_SLIB_VERSION}. Please install this SLIB version first."
;   Abort

; Check for older scm installed
  ReadRegStr $0 ${PRODUCT_UNINST_ROOT_KEY} "${SCM_KEY}" "${KEY_VERSION}"
  StrCmp $0 '' +4 0
  StrCmp $0 ${PRODUCT_VERSION} +3 0
  MessageBox MB_OK|MB_ICONSTOP "You already have SCM version $0 installed. Please uninstall this SCM first."
  Abort

FunctionEnd

Section "MainSection" SEC01
  SetOutPath "$INSTDIR"
  SetOverwrite try
  File "scm.exe"
  File "scm.html"
  File "SCM.ico"
  File "Init5f4.scm"
  File "Tscript.scm"
  File "Transcen.scm"
  File "mkimpcat.scm"
  File "hobbit.scm"
  File "scmhob.scm"
  File "hobbit.html"
  File "wbtab.scm"
  File "rwb-isam.scm"
  File "r4rstest.scm"
  File "pi.scm"

; Shortcuts
  !insertmacro MUI_STARTMENU_WRITE_BEGIN Application
  CreateShortCut "$DESKTOP\SCM.lnk" "$INSTDIR\scm.exe" "" "$INSTDIR\SCM.ico"
  CreateDirectory "$SMPROGRAMS\$ICONS_GROUP"
  CreateShortCut "$SMPROGRAMS\$ICONS_GROUP\SCM Manual.lnk" "$INSTDIR\scm.html"
  CreateShortCut "$SMPROGRAMS\$ICONS_GROUP\SCM.lnk" "$INSTDIR\scm.exe" "" "$INSTDIR\SCM.ico"
  CreateShortCut "$SMPROGRAMS\$ICONS_GROUP\Hobbit Manual.lnk" "$INSTDIR\hobbit.html"
  !insertmacro MUI_STARTMENU_WRITE_END

; Jaffer scm registry settings
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${SCM_KEY}" "${KEY_VERSION}" "${PRODUCT_VERSION}"

; Jaffer scm path settings
  Push "$INSTDIR\"
  Call AddToPath

SectionEnd

Section -AdditionalIcons
  !insertmacro MUI_STARTMENU_WRITE_BEGIN Application
  WriteIniStr "$INSTDIR\${PRODUCT_NAME}.url" "InternetShortcut" "URL" "${PRODUCT_WEB_SITE}"
  CreateShortCut "$SMPROGRAMS\$ICONS_GROUP\Website.lnk" "$INSTDIR\${PRODUCT_NAME}.url"
  CreateShortCut "$SMPROGRAMS\$ICONS_GROUP\Uninstall.lnk" "$INSTDIR\uninst.exe"
  !insertmacro MUI_STARTMENU_WRITE_END
SectionEnd

Section -Post
  WriteUninstaller "$INSTDIR\uninst.exe"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_DIR_REGKEY}" "" "$INSTDIR\scm-${PRODUCT_VERSION}.exe"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayName" "$(^Name)"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "UninstallString" "$INSTDIR\uninst.exe"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayIcon" "$INSTDIR\scm-${PRODUCT_VERSION}.exe"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayVersion" "${PRODUCT_VERSION}"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "URLInfoAbout" "${PRODUCT_WEB_SITE}"
  WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "Publisher" "${PRODUCT_PUBLISHER}"
SectionEnd

Function .onInstSuccess
  IfRebootFlag 0 noreboot
    MessageBox MB_YESNO|MB_ICONQUESTION|MB_DEFBUTTON1 "A reboot is required to finish the installation. Do you wish to reboot now?" IDNO noreboot
      Reboot
  noreboot:
FunctionEnd

Function un.onUninstSuccess
  HideWindow
  MessageBox MB_ICONINFORMATION|MB_OK "$(^Name) was successfully removed from your computer."
FunctionEnd

Function un.onInit
  MessageBox MB_ICONQUESTION|MB_YESNO|MB_DEFBUTTON2 "Are you sure you want to completely remove $(^Name) and all of its components?" IDYES +2
  Abort
FunctionEnd

Section Uninstall
  !insertmacro MUI_STARTMENU_GETFOLDER "Application" $ICONS_GROUP
  Delete "$INSTDIR\${PRODUCT_NAME}.url"
  Delete "$INSTDIR\uninst.exe"
  Delete "$INSTDIR\pi.scm"
  Delete "$INSTDIR\r4rstest.scm"
  Delete "$INSTDIR\rwb-isam.scm"
  Delete "$INSTDIR\wbtab.scm"
  Delete "$INSTDIR\hobbit.html"
  Delete "$INSTDIR\scmhob.scm"
  Delete "$INSTDIR\hobbit.scm"
  Delete "$INSTDIR\mkimpcat.scm"
  Delete "$INSTDIR\Transcen.scm"
  Delete "$INSTDIR\Tscript.scm"
  Delete "$INSTDIR\Init5f4.scm"
  Delete "$INSTDIR\SCM.ico"
  Delete "$INSTDIR\scm.html"
  Delete "$INSTDIR\scm.exe"
  Delete "$INSTDIR\scmlit.exe"
  Delete "$INSTDIR\implcat"
  Delete "$INSTDIR\slibcat"
  Delete "$INSTDIR\tmp1"
  Delete "$INSTDIR\tmp2"
  Delete "$INSTDIR\tmp3"

  Delete "$SMPROGRAMS\$ICONS_GROUP\Uninstall.lnk"
  Delete "$SMPROGRAMS\$ICONS_GROUP\Website.lnk"
  Delete "$SMPROGRAMS\$ICONS_GROUP\SCM.lnk"
  Delete "$SMPROGRAMS\$ICONS_GROUP\SCM Manual.lnk"
  Delete "$SMPROGRAMS\$ICONS_GROUP\Hobbit Manual.lnk"
  Delete "$DESKTOP\SCM.lnk"

  RMDir "$SMPROGRAMS\$ICONS_GROUP"
  RMDir "$INSTDIR"

  # remove from the path
  Push "$INSTDIR\"
  Call un.RemoveFromPath

  ; remove Jaffer registry entries
  DeleteRegKey ${PRODUCT_UNINST_ROOT_KEY} "${SCM_KEY}"

  DeleteRegKey ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}"
  DeleteRegKey ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_DIR_REGKEY}"
  SetAutoClose true

SectionEnd

; ----------------[ ENVIRONMENT MANIPULATION ]----------------

!ifndef WriteEnvStr_RegKey
  !ifdef ALL_USERS
    !define WriteEnvStr_RegKey \
       'HKLM "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"'
  !else
    !define WriteEnvStr_RegKey 'HKCU "Environment"'
  !endif
!endif


; ----------------[ EXECUTABLE PATH MANIPULATION ]----------------

; AddToPath - Adds the given dir to the search path.
;        Input - head of the stack
;        Note - Win9x systems requires reboot

Function AddToPath
  Exch $0
  Push $1
  Push $2
  Push $3

  # don't add if the path doesn't exist
  IfFileExists "$0\*.*" "" AddToPath_done

  ReadEnvStr $1 PATH
  Push "$1;"
  Push "$0;"
  Call StrStr
  Pop $2
  StrCmp $2 "" "" AddToPath_done
  Push "$1;"
  Push "$0\;"
  Call StrStr
  Pop $2
  StrCmp $2 "" "" AddToPath_done
  GetFullPathName /SHORT $3 $0
  Push "$1;"
  Push "$3;"
  Call StrStr
  Pop $2
  StrCmp $2 "" "" AddToPath_done
  Push "$1;"
  Push "$3\;"
  Call StrStr
  Pop $2
  StrCmp $2 "" "" AddToPath_done

  Call IsNT
  Pop $1
  StrCmp $1 1 AddToPath_NT
    ; Not on NT
    StrCpy $1 $WINDIR 2
    FileOpen $1 "$1\autoexec.bat" a
    FileSeek $1 -1 END
    FileReadByte $1 $2
    IntCmp $2 26 0 +2 +2 # DOS EOF
      FileSeek $1 -1 END # write over EOF
    FileWrite $1 "$\r$\nSET PATH=%PATH%;$3$\r$\n"
    FileClose $1
    SetRebootFlag true
    Goto AddToPath_done

  AddToPath_NT:
    ReadRegStr $1 ${WriteEnvStr_RegKey} "PATH"
    StrCmp $1 "" AddToPath_NTdoIt
      Push $1
      Call Trim
      Pop $1
      StrCpy $0 "$1;$0"
    AddToPath_NTdoIt:
      WriteRegExpandStr ${WriteEnvStr_RegKey} "PATH" $0
      SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000

  AddToPath_done:
    Pop $3
    Pop $2
    Pop $1
    Pop $0
FunctionEnd

; RemoveFromPath - Remove a given dir from the path
;     Input: head of the stack

Function un.RemoveFromPath
  Exch $0
  Push $1
  Push $2
  Push $3
  Push $4
  Push $5
  Push $6

  IntFmt $6 "%c" 26 # DOS EOF

  Call un.IsNT
  Pop $1
  StrCmp $1 1 unRemoveFromPath_NT
    ; Not on NT
    StrCpy $1 $WINDIR 2
    FileOpen $1 "$1\autoexec.bat" r
    GetTempFileName $4
    FileOpen $2 $4 w
    GetFullPathName /SHORT $0 $0
    StrCpy $0 "SET PATH=%PATH%;$0"
    Goto unRemoveFromPath_dosLoop

    unRemoveFromPath_dosLoop:
      FileRead $1 $3
      StrCpy $5 $3 1 -1 # read last char
      StrCmp $5 $6 0 +2 # if DOS EOF
        StrCpy $3 $3 -1 # remove DOS EOF so we can compare
      StrCmp $3 "$0$\r$\n" unRemoveFromPath_dosLoopRemoveLine
      StrCmp $3 "$0$\n" unRemoveFromPath_dosLoopRemoveLine
      StrCmp $3 "$0" unRemoveFromPath_dosLoopRemoveLine
      StrCmp $3 "" unRemoveFromPath_dosLoopEnd
      FileWrite $2 $3
      Goto unRemoveFromPath_dosLoop
      unRemoveFromPath_dosLoopRemoveLine:
        SetRebootFlag true
        Goto unRemoveFromPath_dosLoop

    unRemoveFromPath_dosLoopEnd:
      FileClose $2
      FileClose $1
      StrCpy $1 $WINDIR 2
      Delete "$1\autoexec.bat"
      CopyFiles /SILENT $4 "$1\autoexec.bat"
      Delete $4
      Goto unRemoveFromPath_done

  unRemoveFromPath_NT:
    ReadRegStr $1 ${WriteEnvStr_RegKey} "PATH"
    StrCpy $5 $1 1 -1 # copy last char
    StrCmp $5 ";" +2 # if last char != ;
      StrCpy $1 "$1;" # append ;
    Push $1
    Push "$0;"
    Call un.StrStr ; Find `$0;` in $1
    Pop $2 ; pos of our dir
    StrCmp $2 "" unRemoveFromPath_done
      ; else, it is in path
      # $0 - path to add
      # $1 - path var
      StrLen $3 "$0;"
      StrLen $4 $2
      StrCpy $5 $1 -$4 # $5 is now the part before the path to remove
      StrCpy $6 $2 "" $3 # $6 is now the part after the path to remove
      StrCpy $3 $5$6

      StrCpy $5 $3 1 -1 # copy last char
      StrCmp $5 ";" 0 +2 # if last char == ;
        StrCpy $3 $3 -1 # remove last char

      WriteRegExpandStr ${WriteEnvStr_RegKey} "PATH" $3
      SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000

  unRemoveFromPath_done:
    Pop $6
    Pop $5
    Pop $4
    Pop $3
    Pop $2
    Pop $1
    Pop $0
FunctionEnd

; ----------------[ OS TYPE DETERMINATION ]----------------

#
# [un.]IsNT - Pushes 1 if running on NT, 0 if not
#
# Example:
#   Call IsNT
#   Pop $0
#   StrCmp $0 1 +3
#     MessageBox MB_OK "Not running on NT!"
#     Goto +2
#     MessageBox MB_OK "Running on NT!"
#
!macro IsNT UN
Function ${UN}IsNT
  Push $0
  ReadRegStr $0 HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion" CurrentVersion
  StrCmp $0 "" 0 IsNT_yes
  ; we are not NT.
  Pop $0
  Push 0
  Return

  IsNT_yes:
    ; NT!!!
    Pop $0
    Push 1
FunctionEnd
!macroend
!insertmacro IsNT ""
!insertmacro IsNT "un."

; ----------------[ STRING MANIPULATION ]----------------

; StrStr
; input, top of stack = string to search for
;        top of stack-1 = string to search in
; output, top of stack (replaces with the portion of the string remaining)
; modifies no other variables.
;
; Usage:
;   Push "this is a long ass string"
;   Push "ass"
;   Call StrStr
;   Pop $R0
;  ($R0 at this point is "ass string")

!macro StrStr un
Function ${un}StrStr
Exch $R1 ; st=haystack,old$R1, $R1=needle
  Exch    ; st=old$R1,haystack
  Exch $R2 ; st=old$R1,old$R2, $R2=haystack
  Push $R3
  Push $R4
  Push $R5
  StrLen $R3 $R1
  StrCpy $R4 0
  ; $R1=needle
  ; $R2=haystack
  ; $R3=len(needle)
  ; $R4=cnt
  ; $R5=tmp
  loop:
    StrCpy $R5 $R2 $R3 $R4
    StrCmp $R5 $R1 done
    StrCmp $R5 "" done
    IntOp $R4 $R4 + 1
    Goto loop
done:
  StrCpy $R1 $R2 "" $R4
  Pop $R5
  Pop $R4
  Pop $R3
  Pop $R2
  Exch $R1
FunctionEnd
!macroend
!insertmacro StrStr ""
!insertmacro StrStr "un."

Function Trim ; Added by Pelaca
	Exch $R1
	Push $R2
Loop:
	StrCpy $R2 "$R1" 1 -1
	StrCmp "$R2" " " RTrim
	StrCmp "$R2" "$\n" RTrim
	StrCmp "$R2" "$\r" RTrim
	StrCmp "$R2" ";" RTrim
	GoTo Done
RTrim:
	StrCpy $R1 "$R1" -1
	Goto Loop
Done:
	Pop $R2
	Exch $R1
FunctionEnd