英文:
How do I add external executable to Go project
问题
我正在使用Go编写一个应用程序。然而，在每个平台上，我的代码将利用从另一个项目中编译的外部程序（例如，在Windows上使用C++，在Mac上使用Objective-C等）。这个外部可执行文件是通过os/exec的exec.Command函数调用的。
我可以成功地打包我的软件，但是有一个问题仍然存在，就是使用go run会导致该文件丢失。
有没有办法告诉go，每当我运行$ go run myproj时，它应该包含外部文件（最好还能从源代码构建）？
据我所知，go run只是在一个临时目录下构建二进制文件，但它不会包含任何外部文件，比如图片等。所以，例如当你有两个文件：$GOPATH/src/main/main.go和$GOPATH/ext-tool.bin，而main.go的内容是：
package main
import "os/exec"
func main() {
cmd := exec.Command("./ext-tool.bin")
err := cmd.Run()
if err != nil {
os.Exit(1)
}
}
英文:
I am writing an application in Go. However on every platform my code will utilize external program compiled from another project in another language (e.g. C++ in Windows, Objective-C for Mac etc). This external executable is called with os/exec exec.Command function.
I can package my software with no problem, however one issue persists is that using go run will result in this file missing.
Is there a way to tell go that it should include external file (and preferably also build it from source) whenever I do $ go run myproj?
AFAIK, go run simply builds binary under a tmp directory, however it won't include any external files such as images etc. So for example when you have two files: $GOPATH/src/main/main.go and $GOPATH/ext-tool.bin and main.go content is:
package main
import "os/exec"
func main() {
cmd := exec.Command("./ext-tool.bin")
err := cmd.Run()
if err != nil {
os.Exit(1)
}
}
答案1
得分: 3
一种替代方案是将可执行文件嵌入到应用程序构建中。
可以使用go-bindata或其更近期的继任者unnoted/fileb0x来实现。在这种情况下，您可以在内存文件系统中访问嵌入的可执行文件。
英文:
One alternative would be to embed your executable in your application build.
This is done with go-bindata or its more recent successor unnoted/fileb0x.
There, you would have access to your embedded executable within an in-memory filesystem.
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