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// Copyright 2016 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"flag"
"io/ioutil"
"log"
"os"
"path/filepath"
"time"
"github.com/google/slothfs/cache"
"github.com/google/slothfs/fs"
"github.com/google/slothfs/gitiles"
"github.com/google/slothfs/manifest"
"github.com/hanwen/go-fuse/fuse/nodefs"
)
func main() {
manifestPath := flag.String("manifest", "", "expanded manifest file path")
gitilesURL := flag.String("gitiles", "", "gitiles URL. If unset, derive from manifest location.")
cacheDir := flag.String("cache", filepath.Join(os.Getenv("HOME"), ".cache", "slothfs"), "cache dir")
debug := flag.Bool("debug", false, "print debug info")
config := flag.String("config", "", "JSON file configuring what repositories should be cloned.")
flag.Parse()
if *manifestPath == "" {
log.Fatal("must set --manifest")
}
if *cacheDir == "" {
log.Fatal("must set --cache")
}
if *gitilesURL == "" {
log.Fatal("must set --gitiles")
}
if len(flag.Args()) < 1 {
log.Fatal("usage: main -gitiles URL -repo REPO [-branch BRANCH] MOUNT-POINT")
}
mntDir := flag.Arg(0)
cache, err := cache.NewCache(*cacheDir, cache.Options{})
if err != nil {
log.Printf("NewCache: %v", err)
}
service, err := gitiles.NewService(*gitilesURL, gitiles.Options{})
if err != nil {
log.Printf("NewService: %v", err)
}
mf, err := manifest.ParseFile(*manifestPath)
if err != nil {
log.Fatal(err)
}
opts := fs.ManifestOptions{
Manifest: mf,
}
if *config != "" {
configContents, err := ioutil.ReadFile(*config)
if err != nil {
log.Fatal(err)
}
opts.RepoCloneOption, opts.FileCloneOption, err = fs.ReadConfig(configContents)
if err != nil {
log.Fatal(err)
}
}
root, err := fs.NewManifestFS(service, cache, opts)
if err != nil {
log.Fatalf("NewManifestFS: %v", err)
}
server, _, err := nodefs.MountRoot(mntDir, root, &nodefs.Options{
EntryTimeout: time.Hour,
NegativeTimeout: time.Hour,
AttrTimeout: time.Hour,
})
if err != nil {
log.Fatalf("MountFileSystem: %v", err)
}
if *debug {
server.SetDebug(true)
}
log.Printf("Started gitiles fs FUSE on %s", mntDir)
server.Serve()
}