Hi gophers,
I would like to know which dependencies are embedded in generated Go
binary, along with their version. I though at first that they were listed
in *go.sum* file, but it seems that this is not the case.
I found two different ways to do so:
- Running "go version -m my-binary"
- Calling runtime.debug API in my code, as follows:
func buildInfo() {
buildInfo, ok := debug.ReadBuildInfo()
if !ok {
panic("Can't read BuildInfo")
}
fmt.Println("Dependencies:")
for _, dep := range buildInfo.Deps {
fmt.Printf(" %s %s\n", dep.Path, dep.Version)
}
}
func main() {
// print build info if -info passed on command line
if len(os.Args) > 1 && os.Args[1] == "-info" {
buildInfo()
os.Exit(0)
}
...
}
These two methods produce the same list. Does anyone confirm that this is
the way to list embedded dependencies in a Go binary?
Another question related to this one:
Let's say I use dependencies A and B that both use C in two different
versions. According to my own experience, it seems that Go will embed only
one of these versions, the latest one. Is this correct?
Best regards
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