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cmd/go: check GOROOT directory is present before acting
Fixes #5042. R=golang-dev, adg, rsc CC=golang-dev https://golang.org/cl/7786047
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@ -144,6 +144,11 @@ func main() {
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}
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}
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}
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}
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if fi, err := os.Stat(goroot); err != nil || !fi.IsDir() {
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fmt.Fprintf(os.Stderr, "go: cannot find GOROOT directory: %v\n", goroot)
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os.Exit(2)
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}
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for _, cmd := range commands {
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for _, cmd := range commands {
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if cmd.Name() == args[0] && cmd.Run != nil {
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if cmd.Name() == args[0] && cmd.Run != nil {
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cmd.Flag.Usage = func() { cmd.Usage() }
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cmd.Flag.Usage = func() { cmd.Usage() }
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