func main() {
flag.Parse()
if *servingTable == "" && gs == nil {
flagutil.UsageError("missing either --serving_table or --graphstore")
} else if *httpListeningAddr == "" && *grpcListeningAddr == "" {
flagutil.UsageError("missing either --listen or --grpc_listen argument")
} else if *servingTable != "" && gs != nil {
flagutil.UsageError("--serving_table and --graphstore are mutually exclusive")
}
var (
xs xrefs.Service
ft filetree.Service
sr search.Service
)
ctx := context.Background()
if *servingTable != "" {
db, err := leveldb.Open(*servingTable, nil)
if err != nil {
log.Fatalf("Error opening db at %q: %v", *servingTable, err)
}
defer db.Close()
tbl := table.ProtoBatchParallel{&table.KVProto{db}}
xs = xsrv.NewCombinedTable(tbl)
ft = &ftsrv.Table{tbl}
sr = &srchsrv.Table{&table.KVInverted{db}}
} else {
log.Println("WARNING: serving directly from a GraphStore can be slow; you may want to use a --serving_table")
if f, ok := gs.(filetree.Service); ok {
log.Printf("Using %T directly as filetree service", gs)
ft = f
} else {
m := filetree.NewMap()
if err := m.Populate(ctx, gs); err != nil {
log.Fatalf("Error populating file tree from GraphStore: %v", err)
}
ft = m
}
if x, ok := gs.(xrefs.Service); ok {
log.Printf("Using %T directly as xrefs service", gs)
xs = x
} else {
if err := xstore.EnsureReverseEdges(ctx, gs); err != nil {
log.Fatalf("Error ensuring reverse edges in GraphStore: %v", err)
}
xs = xstore.NewGraphStoreService(gs)
}
if s, ok := gs.(search.Service); ok {
log.Printf("Using %T directly as search service", gs)
sr = s
}
}
if sr == nil {
log.Println("Search API not supported")
}
if *grpcListeningAddr != "" {
srv := grpc.NewServer()
xpb.RegisterXRefServiceServer(srv, xs)
ftpb.RegisterFileTreeServiceServer(srv, ft)
if sr != nil {
spb.RegisterSearchServiceServer(srv, sr)
}
go startGRPC(srv)
}
if *httpListeningAddr != "" {
xrefs.RegisterHTTPHandlers(ctx, xs, http.DefaultServeMux)
filetree.RegisterHTTPHandlers(ctx, ft, http.DefaultServeMux)
if sr != nil {
search.RegisterHTTPHandlers(ctx, sr, http.DefaultServeMux)
}
go startHTTP()
}
select {} // block forever
}
func main() {
flag.Parse()
if *servingTable == "" && gs == nil {
flagutil.UsageError("missing either --serving_table or --graphstore")
} else if *httpListeningAddr == "" && *grpcListeningAddr == "" && *tlsListeningAddr == "" {
flagutil.UsageError("missing either --listen, --tls_listen, or --grpc_listen argument")
} else if *servingTable != "" && gs != nil {
flagutil.UsageError("--serving_table and --graphstore are mutually exclusive")
} else if *tlsListeningAddr != "" && (*tlsCertFile == "" || *tlsKeyFile == "") {
flagutil.UsageError("--tls_cert_file and --tls_key_file are required if given --tls_listen")
} else if flag.NArg() > 0 {
flagutil.UsageErrorf("unknown non-flag arguments given: %v", flag.Args())
}
var (
xs xrefs.Service
ft filetree.Service
sr search.Service
)
ctx := context.Background()
if *servingTable != "" {
db, err := leveldb.Open(*servingTable, nil)
if err != nil {
log.Fatalf("Error opening db at %q: %v", *servingTable, err)
}
defer db.Close()
tbl := table.ProtoBatchParallel{&table.KVProto{db}}
xs = xsrv.NewCombinedTable(tbl)
ft = &ftsrv.Table{tbl}
sr = &srchsrv.Table{&table.KVInverted{db}}
} else {
log.Println("WARNING: serving directly from a GraphStore can be slow; you may want to use a --serving_table")
if f, ok := gs.(filetree.Service); ok {
log.Printf("Using %T directly as filetree service", gs)
ft = f
} else {
m := filetree.NewMap()
if err := m.Populate(ctx, gs); err != nil {
log.Fatalf("Error populating file tree from GraphStore: %v", err)
}
ft = m
}
if x, ok := gs.(xrefs.Service); ok {
log.Printf("Using %T directly as xrefs service", gs)
xs = x
} else {
if err := xstore.EnsureReverseEdges(ctx, gs); err != nil {
log.Fatalf("Error ensuring reverse edges in GraphStore: %v", err)
}
xs = xstore.NewGraphStoreService(gs)
}
if s, ok := gs.(search.Service); ok {
log.Printf("Using %T directly as search service", gs)
sr = s
}
}
if sr == nil {
log.Println("Search API not supported")
}
if *grpcListeningAddr != "" {
srv := grpc.NewServer()
xpb.RegisterXRefServiceServer(srv, xs)
ftpb.RegisterFileTreeServiceServer(srv, ft)
if sr != nil {
spb.RegisterSearchServiceServer(srv, sr)
}
go startGRPC(srv)
}
if *httpListeningAddr != "" || *tlsListeningAddr != "" {
apiMux := http.NewServeMux()
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if *httpAllowOrigin != "" {
w.Header().Set("Access-Control-Allow-Origin", *httpAllowOrigin)
}
apiMux.ServeHTTP(w, r)
})
xrefs.RegisterHTTPHandlers(ctx, xs, apiMux)
filetree.RegisterHTTPHandlers(ctx, ft, apiMux)
if sr != nil {
search.RegisterHTTPHandlers(ctx, sr, apiMux)
}
if *publicResources != "" {
log.Println("Serving public resources at", *publicResources)
if s, err := os.Stat(*publicResources); err != nil {
log.Fatalf("ERROR: could not get FileInfo for %q: %v", *publicResources, err)
} else if !s.IsDir() {
log.Fatalf("ERROR: %q is not a directory", *publicResources)
}
apiMux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
http.ServeFile(w, r, filepath.Join(*publicResources, filepath.Clean(r.URL.Path)))
})
}
}
if *httpListeningAddr != "" {
go startHTTP()
}
if *tlsListeningAddr != "" {
go startTLS()
}
select {} // block forever
}