import _ "embed" It means to import it for side effects only
On Sunday, October 10, 2021 at 6:12:07 PM UTC+2 sunto...@gmail.com wrote: > Hi, > > I'm having problem using embed with Go 1.16. I'm getting ether > > - //go:embed only allowed in Go files that import "embed" > - or imported and not used: "embed" > > The test code is published at > https://github.com/suntong/lang/tree/master/lang/Go/src/ds/embed > > here are the details: > > If I remove the "embed" Go import, I'll get: > > $ go build > # github.com/suntong/lang/lang/Go/src/ds/embed > ./embeding.go:17:3: //go:embed only allowed in Go files that import "embed" > > If I add back the "embed" Go import, I'll get: > > $ go build > # github.com/suntong/lang/lang/Go/src/ds/embed > ./embeding.go:11:2: imported and not used: "embed" > > $ go version > go version go1.16.6 linux/amd64 > > $ lsb_release -a > No LSB modules are available. > Distributor ID: Debian > Description: Debian GNU/Linux bullseye/sid > Release: 10.10 > Codename: buster > > The main file: > > ------------------------------- > package main > > import ( > "embed" > "flag" > "fmt" > "os" > ) > > //go:embed cpuArch.txt > var cpuArch string > > func usage() { > // Fprintf allows us to print to a specifed file handle or stream > fmt.Fprintf(os.Stderr, "\nUsage: %s [flags] file [path ...]\n\n", > "CommandLineFlag") // os.Args[0] > flag.PrintDefaults() > os.Exit(0) > } > > func main() { > fmt.Printf("Before parsing the flags\n") > fmt.Printf("CPU: '%s'\n", cpuArch) > > flag.StringVar(&cpuArch, "cpu", "AMD64", "CPU Arch") > > flag.Usage = usage > flag.Parse() > > // There is also a mandatory non-flag arguments > if len(flag.Args()) < 1 { > usage() > } > > fmt.Printf("\nAfter parsing the flags\n") > fmt.Printf("CPU: '%s'\n", cpuArch) > > } > ------------------------------- > > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/99ac3e07-b1b6-4605-99f3-cf013a8ef8d3n%40googlegroups.com.
