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E.1 File Functions Header

E.1.1 Introduction

Include header:

!include "FileFunc.nsh"

Include function "GetFileExt" for install and "GetParent" for uninstall:

!insertmacro GetFileExt
!insertmacro un.GetParent

Call functions:

Section Install
     ${GetFileExt} "C:\My Downloads\Index.html" $R0
     ; $R0="html"
SectionEnd
Section un.Install
     ${un.GetParent} "C:\My Downloads\Index.html" $R0
     ; $R0="C:\My Downloads"
SectionEnd

E.1.2 Locate

Syntax:

${Locate} "[Path]" "[Options]" "Function"
"[Path]"      ; Disk or Directory
              ;
"[Options]"   ; /L=[FD|F|D|DE|FDE]
              ;     /L=FD    - Locate Files and Directories (default)
              ;     /L=F     - Locate Files only
              ;     /L=D     - Locate Directories only
              ;     /L=DE    - Locate Empty Directories only
              ;     /L=FDE   - Locate Files and Empty Directories
              ; /M=[mask]
              ;     /M=*.*         - Locate all (default)
              ;     /M=*.doc       - Locate Work.doc, 1.doc ...
              ;     /M=Pho*        - Locate PHOTOS, phone.txt ...
              ;     /M=win???.exe  - Locate winamp.exe, winver.exe ...
              ;     /M=winamp.exe  - Locate winamp.exe only
              ; /S=No:No[B|K|M|G]
              ;     /S=      - Don't locate file size (faster) (default)
              ;     /S=0:0B  - Locate only files of 0 Bytes exactly
              ;     /S=5:9K  - Locate only files of 5 to 9 Kilobytes
              ;     /S=:10M  - Locate only files of 10 Megabyte or less
              ;     /S=1G    - Locate only files of 1 Gigabyte or more
              ; /G=[1|0]
              ;     /G=1     - Locate with subdirectories (default)
              ;     /G=0     - Locate without subdirectories
              ; /B=[0|1]
              ;     /B=0     - Banner isn't used (default)
              ;     /B=1     - Banner is used. Callback when function
              ;                start to search in new directory
"Function"    ; Callback function when found

Function "Function"
	; $R9    "path\name"
	; $R8    "path"
	; $R7    "name"
	; $R6    "size"  ($R6="" if directory, $R6="0" if file with /S=)

	; $R0-$R5  are not used (save data in them).
	; ...

	Push $var    ; If $var="StopLocate" Then exit from function
FunctionEnd

Note:
-Error flag if disk or directory isn't exist
-Error flag if syntax error

Example (Find one file):

Section
	${Locate} "C:\ftp" "/L=F /M=RPC DCOM.rar /S=1K" "Example1"
	; 'RPC DCOM.rar' file in 'C:\ftp' with size 1 Kb or more

	IfErrors 0 +2
	MessageBox MB_OK "Error" IDOK +2
	MessageBox MB_OK "$$R0=$R0"
SectionEnd

Function Example1
	StrCpy $R0 $R9
	; $R0="C:\ftp\files\RPC DCOM.rar"

	MessageBox MB_YESNO '$R0$\n$\nFind next?' IDYES +2
	StrCpy $0 StopLocate

	Push $0
FunctionEnd

Example (Write founded in text file):

Section
	GetTempFileName $R0
	FileOpen $R1 $R0 w
	${Locate} "C:\ftp" "/S=:2M /G=0" "Example2"
	; folders and all files with size 2 Mb or less
	; don't scan subdirectories
	FileClose $R1

	IfErrors 0 +2
	MessageBox MB_OK "Error" IDOK +2
	Exec '"notepad.exe" "$R0"'
SectionEnd

Function Example2
	StrCmp $R6 '' 0 +3
	FileWrite $R1 "Directory=$R9$\r$\n"
	goto +2
	FileWrite $R1 "File=$R9  Size=$R6 Mb$\r$\n"

	Push $0
FunctionEnd

Example (Write founded in INI file):

Section
	GetTempFileName $R0
	${Locate} "C:\ftp" "/L=F /S=0K" "Example3"
	; all files in 'C:\ftp' with size detect in Kb

	IfErrors 0 +2
	MessageBox MB_OK "Error" IDOK +2
	Exec '"notepad.exe" "$R0"'
SectionEnd

Function Example3
	WriteINIStr $R0 "$R8" "$R7" "$R6 Kb"

	Push $0
FunctionEnd

Example (Delete empty directories):

Section
	StrCpy $R2 0
	StrCpy $R3 0

	loop:
	StrCpy $R1 0
	${Locate} "C:\ftp" "/L=DE" "Example4"
	IntOp $R3 $R3 + 1
	IntOp $R2 $R2 + $R1
	StrCmp $R0 StopLocate +2
	StrCmp $R1 0 0 loop

	IfErrors 0 +2
	MessageBox MB_OK 'error' IDOK +2
	MessageBox MB_OK '$R2 directories were removed$\n$R3 loops'
SectionEnd

Function Example4
	MessageBox MB_YESNOCANCEL 'Delete empty "$R9"?' IDNO end IDCANCEL cancel
	RMDir $R9
	IntOp $R1 $R1 + 1
	goto end

	cancel:
	StrCpy $R0 StopLocate

	end:
	Push $R0
FunctionEnd

Example (Move all files into one folder):

Section
	StrCpy $R0 "C:\ftp"   ;Directory move from
	StrCpy $R1 "C:\ftp2"  ;Directory move into

	StrCpy $R2 0
	StrCpy $R3 0
	${Locate} "$R0" "/L=F" "Example5"

	IfErrors 0 +2
	MessageBox MB_OK 'error' IDOK +4
	StrCmp $R3 0 0 +2
	MessageBox MB_OK '$R2 files were moved' IDOK +2
	MessageBox MB_OK '$R2 files were moved$\n$R3 files were NOT moved'
SectionEnd

Function Example5
	StrCmp $R8 $R1 +6
	IfFileExists '$R1\$R7' +4
	Rename $R9 '$R1\$R7'
	IntOp $R2 $R2 + 1
	goto +2
	IntOp $R3 $R3 + 1

	Push $0
FunctionEnd

Example (Copy files with log):

Section
	StrCpy $R0 "C:\ftp"   ;Directory copy from
	StrCpy $R1 "C:\ftp2"  ;Directory copy into
	StrLen $R2 $R0

	GetTempFileName $0
	FileOpen $R3 $0 w
	${Locate} "$R0" "/L=FDE" "Example6"
	FileClose $R3

	IfErrors 0 +2
	MessageBox MB_OK 'error'

	Exec '"notepad.exe" "$0"'     ;view log
SectionEnd

Function Example6
	StrCpy $1 $R8 '' $R2

	StrCmp $R6 '' 0 +3
	CreateDirectory '$R1$1\$R7'
	goto end
	CreateDirectory '$R1$1'
	CopyFiles /SILENT $R9 '$R1$1'

	IfFileExists '$R1$1\$R7' 0 +3
	FileWrite $R3 "-old:$R9  -new:$R1$1\$R7  -success$\r$\n"
	goto +2
	FileWrite $R3 "-old:$R9  -new:$R1$1\$R7  -failed$\r$\n"

	end:
	Push $0
FunctionEnd

Example (Recreate directory structure):

Section
	StrCpy $R0 "C:\ftp"     ;Directory structure from
	StrCpy $R1 "C:\ftp2"    ;Directory structure into
	StrLen $R2 $R0

	${Locate} "$R0" "/L=D" "Example7"

	IfErrors 0 +2
	MessageBox MB_OK 'error'
SectionEnd

Function Example7
	StrCpy $1 $R9 '' $R2
	CreateDirectory '$R1$1'

	Push $0
FunctionEnd

Example (Locate with banner - "NxS" plugin required):

Section
	nxs::Show /NOUNLOAD `$(^Name) Setup` /top `Setup searching something$\r$\nPlease wait... If you can..` /h 1 /can 1 /end
	${Locate} "C:\WINDOWS" "/L=F /M=*.inf /B=1" "Example8"
	nxs::Destroy
SectionEnd

Function Example8
	StrCmp $R0 $R8 abortcheck
	StrCpy $R0 $R8
	nxs::Update /NOUNLOAD /sub "$R8" /pos 78 /end

	abortcheck:
	nxs::HasUserAborted /NOUNLOAD
	Pop $0
	StrCmp $0 1 0 +2
	StrCpy $0 StopLocate

	StrCmp $R9 '' end
	;...

	end:
	Push $0
FunctionEnd

E.1.3 GetSize

Syntax:

${GetSize} "[Path]" "[Options]" $var1 $var2 $var3
"[Path]"      ; Disk or Directory
              ;
"[Options]"   ; /M=[mask]
              ;     /M=*.*         - Find all (default)
              ;     /M=*.doc       - Find Work.doc, 1.doc ...
              ;     /M=Pho*        - Find PHOTOS, phone.txt ...
              ;     /M=win???.exe  - Find winamp.exe, winver.exe ...
              ;     /M=winamp.exe  - Find winamp.exe only
              ; /S=No:No[B|K|M|G]
              ;     /S=      - Don't find file size (faster) (default)
              ;     /S=0:0B  - Find only files of 0 Bytes exactly
              ;     /S=5:9K  - Find only files of 5 to 9 Kilobytes
              ;     /S=:10M  - Find only files of 10 Megabyte or less
              ;     /S=1G    - Find only files of 1 Gigabyte or more
              ; /G=[1|0]
              ;     /G=1     - Find with subdirectories (default)
              ;     /G=0     - Find without subdirectories
              ;
$var1         ; Result1: Size
$var2         ; Result2: Sum of files
$var3         ; Result3: Sum of directories

Note:
-Error flag if disk or directory isn't exist
-Error flag if syntax error

Example (1):

Section
	; Find file size "C:\WINDOWS\Explorer.exe" in kilobytes

	${GetSize} "C:\WINDOWS" "/M=Explorer.exe /S=0K /G=0" $0 $1 $2
	; $0="220" Kb
	; $1="1"   files
	; $2=""    directories

	IfErrors 0 +2
	MessageBox MB_OK "Error"
SectionEnd

Example (2):

Section
	; Find folder size "C:\Installs\Reanimator\Drivers" in megabytes

	${GetSize} "C:\Installs\Reanimator\Drivers" "/S=0M" $0 $1 $2
	; $0="132" Mb
	; $1="555" files
	; $2="55"  directories

	IfErrors 0 +2
	MessageBox MB_OK "Error"
SectionEnd

Example (3):

Section
	; Find sum of files and folders "C:\WINDOWS" (no subfolders)

	${GetSize} "C:\WINDOWS" "/G=0" $0 $1 $2
	; $0=""    size
	; $1="253" files
	; $2="46"  directories

	IfErrors 0 +2
	MessageBox MB_OK "Error"
SectionEnd

E.1.4 DriveSpace

Syntax:

${GetSize} "[Drive]" "[Options]" $var
"[Drive]"     ; Disk to check
              ;     
"[Options]"   ; /D=[T|O|F]
              ;     /D=T  - Total space (default)
              ;     /D=O  - Occupied space
              ;     /D=F  - Free space
              ; /S=[B|K|M|G]
              ;     /S=B  - size in Bytes (default)
              ;     /S=K  - size in Kilobytes
              ;     /S=M  - size in Megabytes
              ;     /S=G  - size in Gigabytes
              ;
$var          ; Result: Size

Note:
-Error flag if disk isn't exist or not ready
-Error flag if syntax error

Example:

Section
	${DriveSpace} "C:\" "/D=F /S=M" $R0
	; $R0="2530"   megabytes free on drive C:
SectionEnd

E.1.5 GetDrives

Syntax:

${GetDrives} "[Option]" "Function"
"[Option]"      ; [FDD+HDD+CDROM+NET+RAM]
                ;   FDD    Floppy Disk Drives
                ;   HDD    Hard Disk Drives 
                ;   CDROM  CD-ROM Drives
                ;   NET    Network Drives
                ;   RAM    RAM Disk Drives
                ;
                ; [ALL]
                ;   Find all drives by letter (default)
                ;
"Function"      ; Callback function when found

Function "Function"
	; $9    "drive letter"  (a:\ c:\ ...)
	; $8    "drive type"    (FDD HDD ...)

	; $R0-$R9  are not used (save data in them).
	; ...

	Push $var    ; If $var="StopGetDrives" Then exit from function
FunctionEnd

Example1:

Section
	${GetDrives} "FDD+CDROM" "Example1"
SectionEnd

Function Example1
	MessageBox MB_OK "$9  ($8 Drive)"

	Push $0
FunctionEnd

Example2:

Section
	${GetDrives} "ALL" "Example2"
SectionEnd

Function Example2
	MessageBox MB_OK "$9  ($8 Drive)"

	Push $0
FunctionEnd

Example3 (Get type of drive):

Section
	StrCpy $R0 "D:\"      ;Drive letter
	StrCpy $R1 "invalid"

	${GetDrives} "ALL" "Example3"

	MessageBox MB_OK "Type of drive $R0 is $R1"
SectionEnd

Function Example3
	StrCmp $9 $R0 0 +3
	StrCpy $R1 $8
	StrCpy $0 StopGetDrives

	Push $0
FunctionEnd

E.1.6 GetTime

Syntax:

${GetTime} "[File]" "[Option]" $var1 $var2 $var3 $var4 $var5 $var6 $var7
"[File]"        ; Ignored if "L"
                ;
"[Option]"      ; [Options]
                ;   L   Local time
                ;   A   last Access file time
                ;   C   Creation file time
                ;   M   Modification file time
                ;
$var1           ; Result1: day
$var2           ; Result2: month
$var3           ; Result3: year
$var4           ; Result4: day of week name
$var5           ; Result5: hour
$var6           ; Result6: minute
$var7           ; Result7: seconds

Note:
-Error flag if file isn't exist
-Error flag if syntax error

Example (Get local time):

Section
	${GetTime} "" "L" $0 $1 $2 $3 $4 $5 $6
	; $0="01"      day
	; $1="04"      month
	; $2="2005"    year
	; $3="Friday"  day of week name
	; $4="16"      hour
	; $5="05"      minute
	; $6="50"      seconds

	MessageBox MB_OK 'Date=$0/$1/$2 ($3)$\nTime=$4:$5:$6'
SectionEnd

Example (Get file time):

Section
	${GetTime} "$WINDIR\Explorer.exe" "C" $0 $1 $2 $3 $4 $5 $6
	; $0="12"       day
	; $1="10"       month
	; $2="2004"     year
	; $3="Tuesday"  day of week name
	; $4="2"        hour
	; $5="32"       minute
	; $6="03"       seconds

	IfErrors 0 +2
	MessageBox MB_OK "Error" IDOK +2
	MessageBox MB_OK 'Date=$0/$1/$2 ($3)$\nTime=$4:$5:$6'
SectionEnd

E.1.7 GetFileAttributes

Syntax:

${GetFileAttributes} "[File]" "[Attributes]" $var
"[File]"          ; File or directory
                  ;
"[Attributes]"    ; "ALL"  (default)
                  ;  -all attributes of file combined with "|" to output
                  ;
                  ; "READONLY|HIDDEN|SYSTEM|DIRECTORY|ARCHIVE|
                  ; DEVICE|NORMAL|TEMPORARY|SPARSE_FILE|REPARSE_POINT|
                  ; COMPRESSED|OFFLINE|NOT_CONTENT_INDEXED|ENCRYPTED"
                  ;  -file must have specified attributes
                  ;
$var              ; Result:
                  ;    $var=attr1|attr2|... (if used "ALL")
                  ;    $var=1   file has specified attributes
                  ;    $var=0   file has no specified attributes

Note:
-Error flag if file isn't exist

Example1:

Section
	${GetFileAttributes} "C:\MSDOS.SYS" "ALL" $R0
	; $R0=READONLY|HIDDEN|SYSTEM|ARCHIVE
SectionEnd

Example2:

Section
	${GetFileAttributes} "C:\MSDOS.SYS" "SYSTEM|HIDDEN" $R0
	; $R0=1
SectionEnd

Example3:

Section
	${GetFileAttributes} "C:\MSDOS.SYS" "NORMAL" $R0
	; $R0=0
SectionEnd

E.1.8 GetFileVersion

Syntax:

${GetFileVersion} "[Executable]" $var
"[Executable]"      ; Executable file (*.exe *.dll ...)
$var                ; Result: Version number

Note:
-Error flag if file isn't exist
-Error flag if file isn't contain version information

Example:

Section
	${GetFileVersion} "C:\ftp\program.exe" $R0
	; $R0="1.1.0.12"
SectionEnd

E.1.9 GetExeName

Syntax:

${GetExeName} $var

Example:

Section
	${GetExeName} $R0
	; $R0="C:\ftp\program.exe"
SectionEnd

E.1.10 GetExePath

Syntax:

${GetExePath} $var

Example:

Section
	${GetExePath} $R0
	; $R0="C:\ftp"
SectionEnd

E.1.11 GetParameters

Syntax:

${GetParameters} $var

Example:

Section
	${GetParameters} $R0
	; $R0="[parameters]"
SectionEnd

E.1.12 GetOptions

Syntax:

${GetOptions} "[Parameters]" "[Option]" $var
"[Parameters]"     ; command line parameters
                   ;
"[Option]"         ; option name
                   ;
$var               ; Result: option string

Note:
-First option symbol it is delimiter

Example1:

Section
	${GetOptions} "/INSTDIR=Temp /SILENT=yes /ADMIN=qwerty" "/ADMIN="  $R0
	;$R0=qwerty
SectionEnd

Example2:

Section
	${GetOptions} "-INSTDIR=C:\Program Files\Common Files -SILENT=yes" "-INSTDIR="  $R0
	;$R0=C:\Program Files\Common Files
SectionEnd

Example3:

Section
	${GetOptions} '/SILENT=yes /INSTDIR="C:/Program Files/Common Files" /ADMIN=password' "/INSTDIR="  $R0
	;$R0=C:/Program Files/Common Files
SectionEnd

Example4:

Section
	${GetOptions} `-SILENT=yes -INSTDIR='"C:/Program Files/Common Files"' -ADMIN=password` "-INSTDIR="  $R0
	;$R0="C:/Program Files/Common Files"
SectionEnd

E.1.13 GetRoot

Syntax:

${GetRoot} "[FullPath]" $var

Example1:

Section
	${GetRoot} "C:\Program Files\NSIS" $R0
	; $R0="C:"
SectionEnd

Example2:

Section
	${GetRoot} "\\SuperPimp\NSIS\Source\exehead\Ui.c" $R0
	; $R0="\\SuperPimp\NSIS"
SectionEnd

E.1.14 GetParent

Syntax:

${GetParent} "[PathString]" $var

Example:

Section
	${GetParent} "C:\Program Files\Winamp\uninstwa.exe" $R0
	; $R0="C:\Program Files\Winamp"
SectionEnd

E.1.15 GetFileName

Syntax:

${GetFileName} "[PathString]" $var

Example:

Section
	${GetFileName} "C:\Program Files\Winamp\uninstwa.exe" $R0
	; $R0="uninstwa.exe"
SectionEnd

E.1.16 GetBaseName

Syntax:

${GetBaseName} "[FileString]" $var

Example:

Section
	${GetBaseName} "C:\ftp\program.exe" $R0
	; $R0="program"
SectionEnd

E.1.17 GetFileExt

Syntax:

${GetFileExt} "[FileString]" $var

Example:

Section
	${GetFileExt} "C:\ftp\program.exe" $R0
	; $R0="exe"
SectionEnd

E.1.18 BannerTrimPath

Syntax:

${BannerTrimPath} "[PathString]" "[Option]" $var
"[PathString]"    ;
                  ;
"[Option]"        ; [Length][A|B|C|D]
                  ;
                  ; Length  -Maximum string length
                  ;   A     -Trim center path (default)
                  ;           (C:\root\...\third path) 
                  ;           If A mode not possible Then will be used B mode
                  ;   B     -Trim right path
                  ;           (C:\root\second path\...)
                  ;           If B mode not possible Then will be used C mode
                  ;   C     -Trim right string
                  ;           (C:\root\second path\third p...)
                  ;   D     -Trim right string + filename
                  ;           (C:\root\second p...\third path)
                  ;           If D mode not possible Then will be used C mode
                  ;
$var              ; Result:  Trimmed path

Example:

Section
	${BannerTrimPath} "C:\Server\Documents\Terminal\license.htm" "35A" $R0
	;$R0=C:\Server\...\Terminal\license.htm
SectionEnd

Example (Banner plugin):

!include "WinMessages.nsh"
!include "FileFunc.nsh"
!insertmacro Locate
Section
	Banner::show /NOUNLOAD "Starting..."
	Banner::getWindow /NOUNLOAD
	Pop $R1
	${Locate} "$WINDIR" "/L=F /M=*.* /B=1" "LocateCallback"
	Banner::destroy
SectionEnd

Function LocateCallback
	StrCmp $R0 $R8 code
	StrCpy $R0 $R8
	${BannerTrimPath} "$R8" "38B" $R8
	GetDlgItem $1 $R1 1030
	SendMessage $1 ${WM_SETTEXT} 0 "STR:$R8"

	code:
	StrCmp $R9 '' end
	;...

	end:
	Push $0
FunctionEnd

Example (nxs plugin):

!include "FileFunc.nsh"
!insertmacro Locate
Section
	nxs::Show /NOUNLOAD `$(^Name) Setup`\
	  /top `Setup searching something$\nPlease wait$\nIf you can...`\
	  /h 1 /can 1 /end
	${Locate} "$WINDIR" "/L=F /M=*.* /B=1" "LocateCallback"
	nxs::Destroy
SectionEnd

Function LocateCallback
	StrCmp $R0 $R8 abortcheck
	StrCpy $R0 $R8
	${BannerTrimPath} "$R8" "55A" $R8
	nxs::Update /NOUNLOAD /sub "$R8" /pos 78 /end

	abortcheck:
	nxs::HasUserAborted /NOUNLOAD
	Pop $0
	StrCmp $0 1 0 +2
	StrCpy $0 StopLocate

	StrCmp $R9 '' end
	;...

	end:
	Push $0
FunctionEnd

E.1.19 DirState

Syntax:

${DirState} "[path]" $var
"[path]"      ; Directory
$var          ; Result:
              ;    $var=0  (empty)
              ;    $var=1  (full)
              ;    $var=-1 (directory not found)

Example:

Section
	${DirState} "$TEMP" $R0
	; $R0="1"  directory is full
SectionEnd

E.1.20 RefreshShellIcons

Syntax:

${RefreshShellIcons}

Example:

Section
	WriteRegStr HKCR "Winamp.File\DefaultIcon" "" "$PROGRAMFILES\Winamp\WINAMP.EXE,2"

	${RefreshShellIcons}
SectionEnd

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