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godoc: diagnostic for empty FS tree

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R=adg
CC=golang-dev
https://golang.org/cl/5615055
This commit is contained in:
Robert Griesemer 2012-02-03 08:33:29 -08:00
parent 870c9d1c09
commit bd41831f66
1 changed files with 6 additions and 1 deletions
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7
src/cmd/godoc/godoc.go
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@ -114,7 +114,12 @@ func registerPublicHandlers(mux *http.ServeMux) {
}
func initFSTree() {
fsTree.set(newDirectory(filepath.Join(*goroot, *testDir), nil, -1))
dir := newDirectory(filepath.Join(*goroot, *testDir), nil, -1)
if dir == nil {
log.Println("Warning: FSTree is nil")
return
}
fsTree.set(dir)
invalidateIndex()
}