101 lines
2.4 KiB
Go
101 lines
2.4 KiB
Go
/*
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* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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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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"bazil.org/fuse"
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"bazil.org/fuse/fs"
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// _ "bazil.org/fuse/fs/fstestutil"
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)
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func usage() {
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fmt.Fprintf(os.Stderr, "Usage: %s [options] database [mountpoint]\n\n", os.Args[0])
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fmt.Fprintf(os.Stderr, "Parameters:\n")
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flag.PrintDefaults()
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}
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func main() {
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version := flag.Uint("version", 0, "version index (0 for head)")
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readonly := flag.Bool("readonly", false, "mount filesystem as readonly")
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flag.Usage = usage
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flag.Parse()
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if flag.NArg() < 1 {
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usage()
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os.Exit(2)
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}
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mountable := flag.NArg() > 1
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mutable := mountable && !*readonly && *version == 0
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db, err := newDatabase(flag.Arg(0))
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if err != nil {
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log.Fatal(err)
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}
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if mutable {
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if err := db.createNewVer(); err != nil {
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log.Fatal(err)
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}
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}
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if err := db.load(*version); err != nil {
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log.Fatal(err)
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}
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if mountable {
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var options []fuse.MountOption
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if !mutable {
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options = append(options, fuse.ReadOnly())
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}
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conn, err := fuse.Mount(flag.Arg(1), options...)
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if err != nil {
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log.Fatal(err)
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}
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defer conn.Close()
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if err := fs.Serve(conn, db); err != nil {
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log.Fatal(err)
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}
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<-conn.Ready
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if err := conn.MountError; err != nil {
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log.Fatal(err)
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}
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if mutable {
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if err := db.save(); err != nil {
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log.Fatal(err)
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}
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}
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} else {
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db.dump()
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}
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}
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