mirror of https://github.com/perkeep/perkeep.git
126 lines
3.0 KiB
Go
126 lines
3.0 KiB
Go
/*
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Copyright 2011 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"flag"
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"fmt"
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"log"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"camlistore.org/pkg/blobref"
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"camlistore.org/pkg/cacher"
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"camlistore.org/pkg/client"
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"camlistore.org/pkg/fs"
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"camlistore.org/third_party/code.google.com/p/rsc/fuse"
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)
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func usage() {
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fmt.Fprint(os.Stderr, "usage: cammount [opts] <mountpoint> [<root-blobref>|<share URL>]\n")
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flag.PrintDefaults()
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os.Exit(2)
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}
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func main() {
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// Scans the arg list and sets up flags
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debug := flag.Bool("debug", false, "print debugging messages.")
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client.AddFlags()
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flag.Parse()
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errorf := func(msg string, args ...interface{}) {
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fmt.Fprintf(os.Stderr, msg, args...)
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fmt.Fprint(os.Stderr, "\n")
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usage()
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}
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nargs := flag.NArg()
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if nargs < 1 || nargs > 2 {
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usage()
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}
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mountPoint := flag.Arg(0)
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var (
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cl *client.Client
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root *blobref.BlobRef // nil if only one arg
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camfs *fs.CamliFileSystem
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)
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if nargs == 2 {
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rootArg := flag.Arg(1)
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// not trying very hard since NewFromShareRoot will do it better with a regex
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if strings.HasPrefix(rootArg, "http://") ||
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strings.HasPrefix(rootArg, "https://") {
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if client.ExplicitServer() != "" {
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errorf("Can't use an explicit blobserver with a share URL; the blobserver is implicit from the share URL.")
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}
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var err error
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cl, root, err = client.NewFromShareRoot(rootArg)
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if err != nil {
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log.Fatal(err)
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}
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} else {
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cl = client.NewOrFail() // automatic from flags
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root = blobref.Parse(rootArg)
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if root == nil {
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log.Fatalf("Error parsing root blobref: %q\n", rootArg)
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}
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}
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} else {
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cl = client.NewOrFail() // automatic from flags
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}
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diskCacheFetcher, err := cacher.NewDiskCache(cl)
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if err != nil {
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log.Fatalf("Error setting up local disk cache: %v", err)
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}
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defer diskCacheFetcher.Clean()
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if root != nil {
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var err error
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camfs, err = fs.NewRootedCamliFileSystem(diskCacheFetcher, root)
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if err != nil {
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log.Fatalf("Error creating root with %v: %v", root, err)
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}
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} else {
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camfs = fs.NewCamliFileSystem(cl, diskCacheFetcher)
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log.Printf("starting with fs %#v", camfs)
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}
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if *debug {
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// TODO: set fs's logger
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}
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// This doesn't appear to work on OS X:
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sigc := make(chan os.Signal, 1)
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go func() {
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log.Fatalf("Signal %s received, shutting down.", <-sigc)
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}()
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signal.Notify(sigc, syscall.SIGQUIT, syscall.SIGTERM)
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conn, err := fuse.Mount(mountPoint)
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if err != nil {
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log.Fatalf("Mount: %v", err)
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}
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err = conn.Serve(camfs)
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if err != nil {
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log.Fatalf("Serve: %v", err)
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}
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log.Printf("fuse process ending.")
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}
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