在静默安装模式下,系统不会询问用户PageEx directory
的安装目标,因此永远不会调用DirVerify
和GetInstDirError
函数。
这也适用于硬编码安装目标的安装(一个坏主意),原因与上述相同:PageEx directory
永远不会被调用。
答案 0 :(得分:2)
您的示例代码没问题,但在Win9x上调用$ {DriveSpace}可能会失败。我还删除了指定节id的
的需要!define APPNAME "CalcEnoughSpace"
name "${APPNAME}"
outfile "$%temp%\${APPNAME}.exe"
ShowInstDetails show
RequestExecutionLevel user
installdir "$Temp"
AllowRootDirInstall true
!include Sections.nsh
!include LogicLib.nsh
Function .onInit
push $instdir
call VerifyFreeSpace
pop $0
${If} $0 < 1
MessageBox mb_iconstop "Not enough free space!"
${EndIf}
FunctionEnd
page instfiles
Section !a
AddSize 10000
SectionEnd
Section /o b
AddSize 10000
SectionEnd
SectionGroup grp
Section c
AddSize 10000
SectionEnd
SectionGroupEnd
Function VerifyFreeSpace
System::Store s
pop $0 ;path to check
Push 0 ;default to no
System::Call 'kernel32::GetDiskFreeSpaceEx(tr0,*l.r1,*l,*l)i.r2'
${If} $2 < 1
StrCpy $0 $0 3
System::Call 'kernel32::GetDiskFreeSpace(tr0,*i.r1,*i.r2,*i.r3,*i)i.r4'
IntCmpU $4 0 ret
IntOp $1 $1 * $2
System::Int64Op $1 * $3
pop $1
${EndIf}
System::Int64Op $1 / 1024 ;to kb
pop $1
StrCpy $4 0 ;size
StrCpy $2 0 ;section idx
loop:
ClearErrors
SectionGetFlags $2 $3
IfErrors testspace
IntOp $3 $3 & ${SF_SELECTED}
${If} $3 <> 0
SectionGetSize $2 $3
IntOp $4 $4 + $3
${EndIf}
IntOp $2 $2 + 1
goto loop
testspace:
pop $2 ;throw away default return value
System::Int64Op $1 > $4
ret:
System::Store l
FunctionEnd
我只进行了有限的测试,希望没有错误:)
答案 1 :(得分:1)
我在NSIS中编写了一个名为CheckFreeSpace
的函数来执行此操作。不幸的是,它有以下限制:
CheckFreeSpace
以添加每个部分。我无法找到一种迭代将使用NSIS安装的所有部分的方法。${DriveSpace}
需要驱动器号,而不是任意目录的路径。驱动器号字符串使用StrCpy $instdrive $INSTDIR 3
计算。如果$INSTDIR
变量是相对路径或者不是以C:\
之类的字符串开头,则会失败。MessageBox
。您可以通过在语句末尾添加MessageBox
来禁止/SD IDOK
,但不会告知用户安装失败:我无法找到发送到stdout
的方法来自NSIS。也许安装程序的返回代码足够了?\tmp
目录。此外,在我的下面的实现中,CheckFreeSpace
在安装后具有空闲空间的硬编码值。显然可以参数化。
这是一个示例安装程序:
!include FileFunc.nsh
!insertmacro DriveSpace
Name "CheckFreeSpace"
OutFile "C:\CheckFreeSpace.exe"
InstallDir C:\tmp\checkfreespace
Page instfiles
Section "install_section" install_section_id
Call CheckFreeSpace
CreateDirectory $INSTDIR
SetOutPath $INSTDIR
File "C:\installme.bat"
WriteUninstaller "$INSTDIR\Uninstall.exe"
DetailPrint "Installation Successful."
SectionEnd
Section "Uninstall"
RMDIR /r "$INSTDIR"
SectionEnd
Function CheckFreeSpace
var /GLOBAL installsize
var /GLOBAL adjustedinstallsize
var /GLOBAL freespace
var /GLOBAL instdrive
; Verify that we have sufficient space for the install
; SectionGetSize returns the size of each section in kilobyte.
SectionGetSize ${install_section_id} $installsize
; Adjust the required install size by 10mb, as a minimum amount
; of free space left after installation.
IntOp $adjustedinstallsize $installsize + 10240
; Compute the drive that is the installation target; the
; ${DriveSpace} macro will not accept a path, it must be a drive.
StrCpy $instdrive $INSTDIR 3
; Compute drive space free in kilobyte
${DriveSpace} $instdrive "/D=F /S=K" $freespace
DetailPrint "Determined installer needs $adjustedinstallsize kb ($installsize kb) while $freespace kb is free"
IntCmp $adjustedinstallsize $freespace spaceok spaceok
MessageBox MB_OK|MB_ICONSTOP "Insufficient space for installation. Please free space for installation directory $INSTDIR and try again."
DetailPrint "Insufficient space for installation. Installer needs $adjustedinstallsize kb, but freespace is only $freespace kb."
Abort "Insufficient space for installation."
spaceok:
DetailPrint "Installation target space is sufficient"
FunctionEnd
答案 2 :(得分:0)
您是否有静默安装的示例脚本?