lyx_mirror/development/Win32/packaging/installer/include/LyXUtils.nsh
Uwe Stöhr 6b36f46b4f installer: squash all warnings (except of one that comes later); remove unused code
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39496 a592a061-630c-0410-9148-cb99ea01b6c8
2011-08-19 21:38:26 +00:00

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# This script contains the following functions:
#
# - LaTeXCheck (check installed LaTeX-system),
# (only used by Small and Complete installer), uses:
# StrPointer
# StrPoint
# RevStrPointer
# RevStrPoint
#
# - un.DelAppPathSub and UnAppPreSuff,
# (delete the folder ~\Documents and Settings\username\Application Data\LyX for all users), uses:
# un.GetParentA
# un.GetUsers
# un.StrPoint
# StrPointer
# StrPoint
# UnAppPreSuff
#
# - CheckAppPathPreferences (replaces the old install folder name with the new one in the preferences files)
# (used by Update installer), uses:
# ReplaceLineContent
#
# - IsUserAdmin (checks if user is admin)
#
# - FileCheck (checks if a given file exists)
#
#--------------------------
!macro StrPointer FindStr SearchStr Pointer
# searches for a string/character (SearchStr) in another string (FindStr)
# and returns the number of the character in the FindStr where the SearchStr was found (Pointer)
# if nothing was found or the search is impossible the Pointer is set to -1
StrLen $R2 ${SearchStr}
StrLen $R4 ${FindStr}
StrCpy $R5 0
${if} $R2 == 0
${orif} $R4 == 0
Goto NotFound
${endif}
IntCmp $R4 $R2 loopA NotFound
loopA:
StrCpy $R3 ${FindStr} $R2 $R5
StrCmp $R3 ${SearchStr} Found
IntOp $R5 $R5 + 1
IntCmp $R4 $R5 loopA NotFound
Goto loopA
Found:
StrCpy ${Pointer} $R5
Goto done
NotFound:
StrCpy ${Pointer} "-1"
done:
!macroend
#--------------------------------
Function StrPoint
!insertmacro StrPointer $String $Search $Pointer
FunctionEnd
#--------------------------------
!macro RevStrPointer FindStr SearchStr Pointer
# searches for a string/character (SearchStr) in another string (FindStr) in reverse order
# and returns the number of the character in the FindStr where the SearchStr was found (Pointer)
# if nothing was found or the search is impossible the Pointer is set to +1
StrLen $R2 ${SearchStr}
StrLen $R4 ${FindStr}
${if} $R2 == 0
${orif} $R4 == 0
Goto NotFound
${endif}
IntCmp $R4 $R2 loopA NotFound
StrCpy $R5 "-$R2"
loopA:
StrCpy $R3 ${FindStr} $R2 $R5
StrCmp $R3 ${SearchStr} Found
IntOp $R5 $R5 - 1
IntCmp "$R5" "-$R4" loopA NotFound
Goto loopA
Found:
StrCpy ${Pointer} $R5
Goto done
NotFound:
StrCpy ${Pointer} "+1"
done:
!macroend
#--------------------------------
Function RevStrPoint
!insertmacro RevStrPointer $String $Search $Pointer
FunctionEnd
#--------------------------------
!macro AppPreSuff AppPre AppSuff
# the APPDATA path for a local user has for WinXP and 2000 the following structure:
# C:\Documents and Settings\username\Application Data
# for Win Vista the structure is:
# C:\Users\username\AppData\Roaming
# this macro saves the "C:\Documents and Settings\" substring into the variable "AppPre"
# and the "Application Data" substring into the variable "AppSuff"
# switch temporarily to local user because the all users application data path is in
# Vista only C:\ProgramData
SetShellVarContext current
StrCpy $String "$APPDATA"
Var /GLOBAL APPDATemp
StrCpy $APPDATemp "$APPDATA"
${If} $MultiUser.Privileges == "Admin"
${OrIf} $MultiUser.Privileges == "Power"
SetShellVarContext all # move back to all users
${endif}
StrCpy $Search "\"
Call StrPoint # search for the first "\"
IntOp $Pointer $Pointer + 1 # jump after the "\"
StrCpy $String $String "" $Pointer # cut off the part before the first "\"
StrCpy $0 $Pointer
Call StrPoint # search for the second "\"
IntOp $0 $0 + $Pointer # $0 is now the pointer to the second "\" in the APPDATA string
StrCpy ${AppPre} $APPDATemp $0 # save the part before the second "\"
IntOp $Pointer $Pointer + 1 # jump after the "\"
StrCpy $String $String "" $Pointer # cut off the part before the second "\"
Call StrPoint # search for the third "\"
IntOp $Pointer $Pointer + 1 # jump after the "\"
StrCpy ${AppSuff} $String "" $Pointer # save the part after the third "\"
!macroend
#--------------------------------
Function un.GetParentA
# deletes a subfolder of the APPDATA path for all users
# used by the function "un.getUsers"
Exch $R0
Push $R1
Push $R2
Push $R3
StrCpy $R1 0
StrLen $R2 $R0
loop:
IntOp $R1 $R1 + 1
IntCmp $R1 $R2 get 0 get
StrCpy $R3 $R0 1 -$R1
StrCmp $R3 "\" get
Goto loop
get:
StrCpy $R0 $R0 -$R1
Pop $R3
Pop $R2
Pop $R1
Exch $R0
FunctionEnd
#--------------------------------
Function un.GetUsers
# reads the subfolders of the "Documents and Settings" folder to get a list of the users
StrCpy $R3 ""
Push "$PROFILE"
Call un.GetParentA
Pop $R2
StrCpy $R2 "$R2"
FindFirst $R0 $R1 "$R2\*"
StrCmp $R1 "" findend 0
findloop:
IfFileExists "$R2\$R1\*.*" 0 notDir
StrCmp $R1 "." notDir
StrCmp $R1 ".." notDir
StrCmp $R1 "All Users" notDir
StrCmp $R1 "Default User" notDir
StrCmp $R1 "All Users.WINNT" notDir
StrCmp $R1 "Default User.WINNT" notDir
StrCpy $R3 "$R3|$R1"
notDir:
FindNext $R0 $R1
StrCmp $R1 "" findend 0
Goto findloop
findend:
FindClose $R0
FunctionEnd
#--------------------------------
Function un.StrPoint
!insertmacro StrPointer $String $Search $Pointer
FunctionEnd
#--------------------------------
!macro UnAppPreSuff AppPre AppSuff
# the APPDATA path for a local user has for WinXP and 2000 the following structure:
# C:\Documents and Settings\username\Application Data
# for Win Vista the structure is:
# C:\Users\username\AppData\Roaming
# this macro saves the "C:\Documents and Settings\" substring into the variable "AppPre"
# and the "Application Data" substring into the variable "AppSuff"
SetShellVarContext current # switch temoprarily to local user
StrCpy $String "$APPDATA"
StrCpy $APPDATemp "$APPDATA"
${if} $MultiUser.Privileges == "Admin"
${orif} $MultiUser.Privileges == "Power"
SetShellVarContext all # move back to all users
${endif}
StrCpy $Search "\"
Call un.StrPoint # search for the first "\"
IntOp $Pointer $Pointer + 1 # jump after the "\"
StrCpy $String $String "" $Pointer # cut off the part before the first "\"
StrCpy $0 $Pointer
Call un.StrPoint # search for the second "\"
IntOp $0 $0 + $Pointer # $0 is now the pointer to the second "\" in the APPDATA string
StrCpy ${AppPre} $APPDATemp $0 # save the part before the second "\"
IntOp $Pointer $Pointer + 1 # jump after the "\"
StrCpy $String $String "" $Pointer # cut off the part before the second "\"
Call un.StrPoint # search for the third "\"
IntOp $Pointer $Pointer + 1 # jump after the "\"
StrCpy ${AppSuff} $String "" $Pointer # save the part after the third "\"
!macroend
#--------------------------------
Function un.DelAppPathSub
# deletes a subfolder of the APPDATA path for all users
# get list of all users
Push $R0
Push $R1
Push $R2
Push $R3
Call un.GetUsers
StrCpy $UserList $R3 "" 1 # cut off the "|" at the end of the list
Pop $R3
Pop $R2
Pop $R1
Pop $R0
# the usernames in the list of all users is separated by "|"
loop:
StrCpy $String "$UserList"
StrCpy $Search "|"
Call un.StrPoint # search for the "|"
StrCmp $Pointer "-1" ready
StrCpy $0 $UserList $Pointer # $0 contains now the username
IntOp $Pointer $Pointer + 1 # jump after the "|"
StrCpy $UserList $UserList "" $Pointer # cut off the first username in the list
# generate the string for the current user
# AppPre and AppSuff are generated in the macro "AppPreSuff"
RMDir /r "$AppPre\$0\$AppSuff\$AppSubfolder" # delete the folder
Goto loop
ready:
StrCpy $0 $UserList
RMDir /r "$AppPre\$0\$AppSuff\$AppSubfolder" # delete the folder
FunctionEnd
#--------------------------------
!macro FileCheck Result FileName FilePath
# checks if a file exists, returns "True" or "False"
Push $0
Push $1
StrCpy $0 ""
StrCpy $1 ""
FileOpen $0 "${Filepath}\${FileName}" r
${if} $0 = ""
StrCpy $1 "False"
${Else}
StrCpy $1 "True"
${endif}
FileClose $0
StrCpy ${Result} $1
Pop $1
Pop $0
!macroend
#------------------------------------------
Function LaTeXCheck
# searches the string "$Search" in the string "$String" and extracts the path around it
# the extracted path is checked if the file "latex.exe" is in it
StartCheck:
StrLen $3 $String
Call StrPoint
${if} $Pointer == "-1" # if nothing was found
StrCpy $PathLaTeX ""
Return
${endif}
IntOp $3 $3 - $Pointer
StrCpy $4 $String $3 "-$3" # $4 is now the part behind the $Search string
StrCpy $String $String $Pointer # $String is now the part before the $Search string
StrCpy $Search ":" # search for the ":" after the first previous drive letter
Call RevStrPoint
IntOp $Pointer $Pointer - 1 # jump before the ":" to the drive letter
StrCpy $Pointer $Pointer "" 1 # cut of the "-" sign
StrCpy $PathLaTeX $String $Pointer "-$Pointer"
StrCpy $String $4
StrCpy $Search ";" # search for the following ";" that separates the different paths
Call StrPoint
${if} $Pointer != "-1" # if something was found
StrCpy $String $String $Pointer
${endif}
StrCpy $PathLaTeX "$PathLaTeX$String"
# check if the latex.exe exists in the $PathLaTeX folder
!insertmacro FileCheck $5 "latex.exe" "$PathLaTeX"
${if} $5 == "False" # delete the entry with the wrong path to the latex.exe and try again
StrCpy $PathLaTeX ""
StrLen $3 $String
StrCpy $String $4 "" $3
${if} $2 == "TeXLive"
StrCpy $Search "TeXLive"
${else}
StrCpy $Search "miktex"
${endif}
Goto StartCheck
${endif}
FunctionEnd