github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/cmd/swarm/list.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 12:09:31</date>
    10  //</624342605815091200>
    11  
    12  
    13  package main
    14  
    15  import (
    16  	"fmt"
    17  	"os"
    18  	"strings"
    19  	"text/tabwriter"
    20  
    21  	"github.com/ethereum/go-ethereum/cmd/utils"
    22  	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
    23  	"gopkg.in/urfave/cli.v1"
    24  )
    25  
    26  func list(ctx *cli.Context) {
    27  	args := ctx.Args()
    28  
    29  	if len(args) < 1 {
    30  		utils.Fatalf("Please supply a manifest reference as the first argument")
    31  	} else if len(args) > 2 {
    32  		utils.Fatalf("Too many arguments - usage 'swarm ls manifest [prefix]'")
    33  	}
    34  	manifest := args[0]
    35  
    36  	var prefix string
    37  	if len(args) == 2 {
    38  		prefix = args[1]
    39  	}
    40  
    41  	bzzapi := strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
    42  	client := swarm.NewClient(bzzapi)
    43  	list, err := client.List(manifest, prefix, "")
    44  	if err != nil {
    45  		utils.Fatalf("Failed to generate file and directory list: %s", err)
    46  	}
    47  
    48  	w := tabwriter.NewWriter(os.Stdout, 1, 2, 2, ' ', 0)
    49  	defer w.Flush()
    50  	fmt.Fprintln(w, "HASH\tCONTENT TYPE\tPATH")
    51  	for _, prefix := range list.CommonPrefixes {
    52  		fmt.Fprintf(w, "%s\t%s\t%s\n", "", "DIR", prefix)
    53  	}
    54  	for _, entry := range list.Entries {
    55  		fmt.Fprintf(w, "%s\t%s\t%s\n", entry.Hash, entry.ContentType, entry.Path)
    56  	}
    57  }
    58