mirror of https://github.com/perkeep/perkeep.git
132 lines
3.3 KiB
Go
132 lines
3.3 KiB
Go
/*
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Copyright 2013 The Perkeep Authors.
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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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// This file adds the "mount" subcommand to devcam, to run pk-mount against the dev server.
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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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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"perkeep.org/internal/osutil"
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"perkeep.org/pkg/cmdmain"
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)
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type mountCmd struct {
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// start of flag vars
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altkey bool
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path string
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port string
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tls bool
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debug bool
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// end of flag vars
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env *Env
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}
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const mountpoint = "/tmp/pk-mount-dir"
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func init() {
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cmdmain.RegisterMode("mount", func(flags *flag.FlagSet) cmdmain.CommandRunner {
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cmd := &mountCmd{
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env: NewCopyEnv(),
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}
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flags.BoolVar(&cmd.altkey, "altkey", false, "Use different gpg key and password from the server's.")
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flags.BoolVar(&cmd.tls, "tls", false, "Use TLS.")
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flags.StringVar(&cmd.path, "path", "/", "Optional URL prefix path.")
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flags.StringVar(&cmd.port, "port", "3179", "Port perkeep is listening on.")
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flags.BoolVar(&cmd.debug, "debug", false, "print debugging messages.")
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return cmd
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})
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}
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func (c *mountCmd) Usage() {
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fmt.Fprintf(cmdmain.Stderr, "Usage: devcam mount [mount_opts] [<root-blobref>|<share URL>]\n")
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}
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func (c *mountCmd) Examples() []string {
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return []string{
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"",
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"http://localhost:3169/share/<blobref>",
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}
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}
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func (c *mountCmd) Describe() string {
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return "run pk-mount in dev mode."
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}
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func tryUnmount(dir string) error {
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if runtime.GOOS == "darwin" {
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return exec.Command("diskutil", "umount", "force", dir).Run()
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}
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return exec.Command("fusermount", "-u", dir).Run()
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}
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func (c *mountCmd) RunCommand(args []string) error {
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err := c.checkFlags(args)
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if err != nil {
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return cmdmain.UsageError(fmt.Sprint(err))
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}
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if !*noBuild {
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if err := build(filepath.Join("cmd", "pk-mount")); err != nil {
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return fmt.Errorf("Could not build pk-mount: %v", err)
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}
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}
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c.env.SetCamdevVars(c.altkey)
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// wipeCacheDir needs to be called after SetCamdevVars, because that is
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// where CAMLI_CACHE_DIR is defined.
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if *wipeCache {
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c.env.wipeCacheDir()
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}
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tryUnmount(mountpoint)
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if err := os.Mkdir(mountpoint, 0700); err != nil && !os.IsExist(err) {
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return fmt.Errorf("Could not make mount point: %v", err)
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}
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blobserver := "http://localhost:" + c.port + c.path
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if c.tls {
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blobserver = strings.Replace(blobserver, "http://", "https://", 1)
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}
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cmdBin, err := osutil.LookPathGopath("pk-mount")
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if err != nil {
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return err
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}
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cmdArgs := []string{
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"-debug=" + strconv.FormatBool(c.debug),
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"-server=" + blobserver,
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}
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cmdArgs = append(cmdArgs, args...)
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cmdArgs = append(cmdArgs, mountpoint)
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fmt.Printf("pk-mount running with mountpoint %v. Press 'q' <enter> or ctrl-c to shut down.\n", mountpoint)
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return runExec(cmdBin, cmdArgs, c.env)
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}
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func (c *mountCmd) checkFlags(args []string) error {
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if _, err := strconv.ParseInt(c.port, 0, 0); err != nil {
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return fmt.Errorf("Invalid -port value: %q", c.port)
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}
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return nil
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}
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