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cmd/go: check GOROOT directory is present before acting

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Fixes #5042.

R=golang-dev, adg, rsc
CC=golang-dev
https://golang.org/cl/7786047
This commit is contained in:
Alex Brainman 2013-05-23 14:13:02 +10:00
parent 4b2eb3f9f8
commit d67e300f28
1 changed files with 5 additions and 0 deletions
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5
src/cmd/go/main.go
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@ -144,6 +144,11 @@ func main() {
}
}
if fi, err := os.Stat(goroot); err != nil || !fi.IsDir() {
fmt.Fprintf(os.Stderr, "go: cannot find GOROOT directory: %v\n", goroot)
os.Exit(2)
}
for _, cmd := range commands {
if cmd.Name() == args[0] && cmd.Run != nil {
cmd.Flag.Usage = func() { cmd.Usage() }