[英]NSIS - Install a file to a pre-existing, uncertain subfolder?
I'm trying to install a file to a pre-existing folder structured like this: 我正在尝试将文件安装到结构如下的现有文件夹中:
$APPDATA/somefolder/(uncertainFolder)
The "uncertainFolder" would be either "1.0" or "2.0". “ uncertainFolder”将为“ 1.0”或“ 2.0”。
The same file will be installed into the "uncertainFolder" despite the folder name difference. 尽管文件夹名称不同,相同的文件也将安装到“ uncertainFolder”中。 How can I achieve this?
我该如何实现?
Thank you in advance. 先感谢您。
Files installed with the File
instruction are extracted into the directory set by SetOutPath
. 使用
File
指令安装的File
被提取到SetOutPath
设置的目录中。 Changing this path at run-time is not a problem once you know which folder you want. 一旦知道所需的文件夹,就可以在运行时更改此路径。
If the possible folder names are known at compile-time you can use if/or if/else: 如果在编译时已知可能的文件夹名称,则可以使用if / or / if / else:
!include LogicLib.nsh
${If} ${FileExists} "$InstDir\SomeFolder\2.0\*.*"
SetOutPath "$InstDir\SomeFolder\2.0"
${Else}
SetOutPath "$InstDir\SomeFolder\1.0"
${EndIf}
You can also enumerate files and folders at run-time: 您还可以在运行时枚举文件和文件夹:
FindFirst $0 $1 "$InstDir\SomeFolder\*.*"
loop:
StrCmp $1 "" end ; No more files?
StrCmp $1 "." next ; DOS special name
StrCmp $1 ".." next ; DOS special name
IfFileExists "$InstDir\SomeFolder\$1\*.*" 0 next ; Skip files
DetailPrint "$1 is a folder in $InstDir\SomeFolder"
SetOutPath "$InstDir\SomeFolder\$1"
Goto end ; This stops the search at the first folder it finds
next:
FindNext $0 $1
goto loop
end:
FindClose $0
The Locate macro in FileFunc.nsh is built on top of FindFirst/FindNext and can also be used if you prefer its syntax... FileFunc.nsh中的Locate宏是基于FindFirst / FindNext构建的,如果您喜欢它的语法,也可以使用...
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