github.com/slspeek/camlistore_namedsearch@v0.0.0-20140519202248-ed6f70f7721a/cmd/camput/permanode.go (about)

     1  /*
     2  Copyright 2011 Google Inc.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8       http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"errors"
    21  	"flag"
    22  	"fmt"
    23  	"strings"
    24  	"time"
    25  
    26  	"camlistore.org/pkg/client"
    27  	"camlistore.org/pkg/cmdmain"
    28  	"camlistore.org/pkg/schema"
    29  )
    30  
    31  type permanodeCmd struct {
    32  	title   string
    33  	tag     string
    34  	key     string // else random
    35  	sigTime string
    36  }
    37  
    38  func init() {
    39  	cmdmain.RegisterCommand("permanode", func(flags *flag.FlagSet) cmdmain.CommandRunner {
    40  		cmd := new(permanodeCmd)
    41  		flags.StringVar(&cmd.title, "title", "", "Optional 'title' attribute to set on new permanode")
    42  		flags.StringVar(&cmd.tag, "tag", "", "Optional tag(s) to set on new permanode; comma separated.")
    43  		flags.StringVar(&cmd.key, "key", "", "Optional key to create deterministic ('planned') permanodes. Must also use --sigtime.")
    44  		flags.StringVar(&cmd.sigTime, "sigtime", "", "Optional time to put in the OpenPGP signature packet instead of the current time. Required when producing a deterministic permanode (with --key). In format YYYY-MM-DD HH:MM:SS")
    45  		return cmd
    46  	})
    47  }
    48  
    49  func (c *permanodeCmd) Describe() string {
    50  	return "Create and upload a permanode."
    51  }
    52  
    53  func (c *permanodeCmd) Usage() {
    54  	cmdmain.Errorf("Usage: camput [globalopts] permanode [permanodeopts]\n")
    55  }
    56  
    57  func (c *permanodeCmd) Examples() []string {
    58  	return []string{
    59  		"                               (create a new permanode)",
    60  		`-name="Some Name" -tag=foo,bar (with attributes added)`,
    61  	}
    62  }
    63  
    64  func (c *permanodeCmd) RunCommand(args []string) error {
    65  	if len(args) > 0 {
    66  		return errors.New("Permanode command doesn't take any additional arguments")
    67  	}
    68  
    69  	var (
    70  		permaNode *client.PutResult
    71  		err       error
    72  		up        = getUploader()
    73  	)
    74  	if (c.key != "") != (c.sigTime != "") {
    75  		return errors.New("Both --key and --sigtime must be used to produce deterministic permanodes.")
    76  	}
    77  	if c.key == "" {
    78  		// Normal case, with a random permanode.
    79  		permaNode, err = up.UploadNewPermanode()
    80  	} else {
    81  		const format = "2006-01-02 15:04:05"
    82  		sigTime, err := time.Parse(format, c.sigTime)
    83  		if err != nil {
    84  			return fmt.Errorf("Error parsing time %q; expecting time of form %q", c.sigTime, format)
    85  		}
    86  		permaNode, err = up.UploadPlannedPermanode(c.key, sigTime)
    87  	}
    88  	if handleResult("permanode", permaNode, err) != nil {
    89  		return err
    90  	}
    91  
    92  	if c.title != "" {
    93  		put, err := up.UploadAndSignBlob(schema.NewSetAttributeClaim(permaNode.BlobRef, "title", c.title))
    94  		handleResult("claim-permanode-title", put, err)
    95  	}
    96  	if c.tag != "" {
    97  		tags := strings.Split(c.tag, ",")
    98  		m := schema.NewSetAttributeClaim(permaNode.BlobRef, "tag", tags[0])
    99  		for _, tag := range tags {
   100  			m = schema.NewAddAttributeClaim(permaNode.BlobRef, "tag", tag)
   101  			put, err := up.UploadAndSignBlob(m)
   102  			handleResult("claim-permanode-tag", put, err)
   103  		}
   104  	}
   105  	return nil
   106  }