yunion.io/x/cloudmux@v0.3.10-0-alpha.1/cmd/s3cli/main.go (about)

     1  // Copyright 2019 Yunion
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package main
    16  
    17  import (
    18  	"fmt"
    19  	"os"
    20  
    21  	"yunion.io/x/structarg"
    22  
    23  	api "yunion.io/x/onecloud/pkg/apis/compute"
    24  	"yunion.io/x/cloudmux/pkg/cloudprovider"
    25  	"yunion.io/x/cloudmux/pkg/multicloud/objectstore"
    26  	"yunion.io/x/cloudmux/pkg/multicloud/objectstore/ceph"
    27  	_ "yunion.io/x/cloudmux/pkg/multicloud/objectstore/shell"
    28  	"yunion.io/x/cloudmux/pkg/multicloud/objectstore/xsky"
    29  	"yunion.io/x/onecloud/pkg/util/shellutils"
    30  )
    31  
    32  type BaseOptions struct {
    33  	Debug      bool   `help:"debug mode"`
    34  	AccessUrl  string `help:"Access url" default:"$S3_ACCESS_URL" metavar:"S3_ACCESS_URL"`
    35  	AccessKey  string `help:"Access key" default:"$S3_ACCESS_KEY" metavar:"S3_ACCESS_KEY"`
    36  	Secret     string `help:"Secret" default:"$S3_SECRET" metavar:"S3_SECRET"`
    37  	Backend    string `help:"Backend driver" default:"$S3_BACKEND" metavar:"S3_BACKEND"`
    38  	SUBCOMMAND string `help:"s3cli subcommand" subcommand:"true"`
    39  }
    40  
    41  func getSubcommandParser() (*structarg.ArgumentParser, error) {
    42  	parse, e := structarg.NewArgumentParserWithHelp(&BaseOptions{},
    43  		"s3cli",
    44  		"Command-line interface to standard S3 API.",
    45  		`See "s3cli COMMAND --help" for help on a specific command.`)
    46  
    47  	if e != nil {
    48  		return nil, e
    49  	}
    50  
    51  	subcmd := parse.GetSubcommand()
    52  	if subcmd == nil {
    53  		return nil, fmt.Errorf("No subcommand argument.")
    54  	}
    55  	for _, v := range shellutils.CommandTable {
    56  		_, e := subcmd.AddSubParserWithHelp(v.Options, v.Command, v.Desc, v.Callback)
    57  		if e != nil {
    58  			return nil, e
    59  		}
    60  	}
    61  	return parse, nil
    62  }
    63  
    64  func showErrorAndExit(e error) {
    65  	fmt.Fprintf(os.Stderr, "%s", e)
    66  	fmt.Fprintln(os.Stderr)
    67  	os.Exit(1)
    68  }
    69  
    70  func newClient(options *BaseOptions) (cloudprovider.ICloudRegion, error) {
    71  	if len(options.AccessUrl) == 0 {
    72  		return nil, fmt.Errorf("Missing accessUrl")
    73  	}
    74  
    75  	if len(options.AccessKey) == 0 {
    76  		return nil, fmt.Errorf("Missing accessKey")
    77  	}
    78  
    79  	if len(options.Secret) == 0 {
    80  		return nil, fmt.Errorf("Missing secret")
    81  	}
    82  
    83  	if options.Backend == api.CLOUD_PROVIDER_CEPH {
    84  		return ceph.NewCephRados(
    85  			objectstore.NewObjectStoreClientConfig(
    86  				options.AccessUrl, options.AccessKey, options.Secret,
    87  			).Debug(options.Debug),
    88  		)
    89  	} else if options.Backend == api.CLOUD_PROVIDER_XSKY {
    90  		return xsky.NewXskyClient(
    91  			objectstore.NewObjectStoreClientConfig(
    92  				options.AccessUrl, options.AccessKey, options.Secret,
    93  			).Debug(options.Debug),
    94  		)
    95  	}
    96  	return objectstore.NewObjectStoreClient(
    97  		objectstore.NewObjectStoreClientConfig(
    98  			options.AccessUrl, options.AccessKey, options.Secret,
    99  		).Debug(options.Debug),
   100  	)
   101  }
   102  
   103  func main() {
   104  	parser, e := getSubcommandParser()
   105  	if e != nil {
   106  		showErrorAndExit(e)
   107  	}
   108  	e = parser.ParseArgs(os.Args[1:], false)
   109  	options := parser.Options().(*BaseOptions)
   110  
   111  	if parser.IsHelpSet() {
   112  		fmt.Print(parser.HelpString())
   113  		return
   114  	}
   115  	subcmd := parser.GetSubcommand()
   116  	subparser := subcmd.GetSubParser()
   117  	if e != nil || subparser == nil {
   118  		if subparser != nil {
   119  			fmt.Print(subparser.Usage())
   120  		} else {
   121  			fmt.Print(parser.Usage())
   122  		}
   123  		showErrorAndExit(e)
   124  	}
   125  	suboptions := subparser.Options()
   126  	if subparser.IsHelpSet() {
   127  		fmt.Print(subparser.HelpString())
   128  		return
   129  	}
   130  	var client cloudprovider.ICloudRegion
   131  	client, e = newClient(options)
   132  	if e != nil {
   133  		showErrorAndExit(e)
   134  	}
   135  	e = subcmd.Invoke(client, suboptions)
   136  	if e != nil {
   137  		showErrorAndExit(e)
   138  	}
   139  }