使用在Inno Setup脚本中的Inno Setup编译器命令行上指定的路径/值 [英] Using path/value specified on Inno Setup compiler command-line in Inno Setup script
问题描述
我想将路径(通过命令行arg /D传递给脚本编译器)传递给我的可执行文件，以使我的脚本使用GetFileVersion确定应用程序版本号，但是我的语法不正确.如何将参数传递给GetFileVersion?
错误是:输入文件中的字符非法:#"(0x23)
I want to pass a path (via command line arg /D to the script compiler) to my executable to let my script determine the application version number using GetFileVersion, but my syntax isn't correct. How do I pass an argument to GetFileVersion?
The error is: Illegal character in input file: '#' (0x23)
#define srcpath SOURCEPATH
#define ApplicationVersion GetFileVersion(#srcpath)//error here!!!!!!
[Setup]
AppVersion={#ApplicationVersion}
[Files]
Source: "MyDllTesting.dll"; Flags: dontcopy
Source: "{srcpath}MyApplication1.exe"; DestDir: "{app}\MyApplication1"
推荐答案
首先，SOURCEPATH是SOURCE_PATH.
First, SOURCEPATH is a Inno Setup preprocessor predefined variable, so you need to use another name for your command-line "variable". I'll be using SOURCE_PATH.
第二，正确的语法是:
#define ApplicationVersion GetFileVersion(SOURCE_PATH)
(即无哈希)
为什么我的答案中没有散列?
为什么预处理程序在#include指令中的行为与在[文件]部分的Inno Setup脚本中的行为不同
Why no hash, is covered in my answer to
Why preprocessor behaves differently in #include directive then in [Files] section Inno Setup script
虽然原因基本相同，但为什么在此处SOURCEPATH之前不使用哈希:
Though the reason is basically the same, why you use no hash before SOURCEPATH here:
#define srcpath SOURCEPATH
相反，您缺少[Files]节条目中的哈希.正确的语法是:
On the contrary you are missing the hash in the [Files] section entry. The correct syntax is:
[Files]
Source: "{#srcpath}MyApplication1.exe"; DestDir: "{app}\MyApplication1"
并且无需定义srcpath变量. SOURCE_PATH也是变量.因此，您可以直接在任何表达式中使用它:
And there's no need to define srcpath variable. SOURCE_PATH is variable too. So you can use it directly in any expression:
#define ApplicationVersion GetFileVersion(SOURCE_PATH)
[Files]
Source: "{#SOURCE_PATH}MyApplication1.exe"; DestDir: "{app}\MyApplication1"
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