Add read command #405
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| package cmd | ||
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| import ( | ||
| "os" | ||
| "sync" | ||
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| "github.com/0chain/gosdk/zboxcore/sdk" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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| // readerCmd represents reader command that downloads file from io.Reader interface provided in | ||
| // gosdk | ||
| var readerCmd = &cobra.Command{ | ||
| Use: "read", | ||
| Short: "read and store file from blobbers", | ||
| Long: `This command will use io.ReadSeekCloser interface provided by Allocation object in gosdk to read file | ||
| from blobbers`, | ||
| Args: cobra.MinimumNArgs(0), | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| fflags := cmd.Flags() // fflags is a *flag.FlagSet | ||
| if !(fflags.Changed("remotepath") || fflags.Changed("authticket")) { | ||
| PrintError("Error: remotepath / authticket flag is missing") | ||
| os.Exit(1) | ||
| } | ||
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| remotePath := cmd.Flag("remotepath").Value.String() | ||
| authTicket := cmd.Flag("authticket").Value.String() | ||
| lookupHash := cmd.Flag("lookuphash").Value.String() | ||
| verifyDownload, err := cmd.Flags().GetBool("verifydownload") | ||
| if err != nil { | ||
| PrintError("Error: ", err) | ||
| os.Exit(1) | ||
| } | ||
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| thumbnail, err := cmd.Flags().GetBool("thumbnail") | ||
| if err != nil { | ||
| PrintError("Error: ", err) | ||
| os.Exit(1) | ||
| } | ||
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| contentMode := sdk.DOWNLOAD_CONTENT_FULL | ||
| if thumbnail { | ||
| contentMode = sdk.DOWNLOAD_CONTENT_THUMB | ||
| } | ||
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| localPath := cmd.Flag("localpath").Value.String() | ||
| allocationID := cmd.Flag("allocation").Value.String() | ||
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| numBlocks, _ := cmd.Flags().GetInt("blockspermarker") | ||
| wg := &sync.WaitGroup{} | ||
| wg.Add(1) | ||
| var allocationObj *sdk.Allocation | ||
| if authTicket != "" { | ||
| allocationObj, err = sdk.GetAllocationFromAuthTicket(authTicket) | ||
| } else { | ||
| if allocationID == "" { | ||
| PrintError("Both authtoken and allocationID are empty") | ||
| os.Exit(1) | ||
| } | ||
| allocationObj, err = sdk.GetAllocation(allocationID) | ||
| } | ||
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| if err != nil { | ||
| PrintError("Error fetching the allocation", err) | ||
| os.Exit(1) | ||
| } | ||
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| err = allocationObj.DownloadFromReader( | ||
| remotePath, localPath, lookupHash, authTicket, contentMode, verifyDownload, uint(numBlocks)) | ||
| if err != nil { | ||
| PrintError("Error: ", err) | ||
| os.Exit(1) | ||
| } | ||
| PrintError("Download successful") | ||
| }, | ||
| } | ||
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| func init() { | ||
| rootCmd.AddCommand(readerCmd) | ||
| readerCmd.PersistentFlags().String("allocation", "", "Allocation ID") | ||
| readerCmd.PersistentFlags().String("remotepath", "", "Remote path to download") | ||
| readerCmd.PersistentFlags().String("localpath", "", "Local path of file to download") | ||
| readerCmd.PersistentFlags().String("authticket", "", "Auth ticket fot the file to download if you dont own it") | ||
| readerCmd.PersistentFlags().String("lookuphash", "", "The remote lookuphash of the object retrieved from the list") | ||
| readerCmd.Flags().BoolP("thumbnail", "t", false, "pass this option to download only the thumbnail") | ||
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| readerCmd.Flags().IntP("blockspermarker", "b", 10, "pass this option to download multiple blocks per marker") | ||
|
There was a problem hiding this comment. Let's use |
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| readerCmd.Flags().BoolP("verifydownload", "v", false, "pass this option to verify downloaded blocks") | ||
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| readerCmd.MarkFlagRequired("allocation") | ||
| readerCmd.MarkFlagRequired("localpath") | ||
| } | ||
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Let's use
verifyto keep it short