import ( _ "embed" ... ) On Sun, Oct 10, 2021 at 6:21 PM Sean Liao <seankhl...@gmail.com> wrote:
> 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 > <https://groups.google.com/d/msgid/golang-nuts/99ac3e07-b1b6-4605-99f3-cf013a8ef8d3n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Thomas Frössman http://t.jossystem.se -- 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/CANDWisCKNznGgy3wDkh-YUTByDXdPjs%2BdS%3DiLyWgHmO4vcfiWA%40mail.gmail.com.
