github.com/digdeepmining/go-atheios@v1.5.13-0.20180902133602-d5687a2e6f43/internal/build/azure.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package build
    18  
    19  import (
    20  	"fmt"
    21  	"os"
    22  
    23  	"github.com/Azure/azure-sdk-for-go/storage"
    24  )
    25  
    26  // AzureBlobstoreConfig is an authentication and configuration struct containing
    27  // the data needed by the Azure SDK to interact with a speicifc container in the
    28  // blobstore.
    29  type AzureBlobstoreConfig struct {
    30  	Account   string // Account name to authorize API requests with
    31  	Token     string // Access token for the above account
    32  	Container string // Blob container to upload files into
    33  }
    34  
    35  // AzureBlobstoreUpload uploads a local file to the Azure Blob Storage. Note, this
    36  // method assumes a max file size of 64MB (Azure limitation). Larger files will
    37  // need a multi API call approach implemented.
    38  //
    39  // See: https://msdn.microsoft.com/en-us/library/azure/dd179451.aspx#Anchor_3
    40  func AzureBlobstoreUpload(path string, name string, config AzureBlobstoreConfig) error {
    41  	if *DryRunFlag {
    42  		fmt.Printf("would upload %q to %s/%s/%s\n", path, config.Account, config.Container, name)
    43  		return nil
    44  	}
    45  
    46  	// Create an authenticated client against the Azure cloud
    47  	rawClient, err := storage.NewBasicClient(config.Account, config.Token)
    48  	if err != nil {
    49  		return err
    50  	}
    51  	client := rawClient.GetBlobService()
    52  
    53  	// Stream the file to upload into the designated blobstore container
    54  	in, err := os.Open(path)
    55  	if err != nil {
    56  		return err
    57  	}
    58  	defer in.Close()
    59  
    60  	info, err := in.Stat()
    61  	if err != nil {
    62  		return err
    63  	}
    64  	return client.CreateBlockBlobFromReader(config.Container, name, uint64(info.Size()), in, nil)
    65  }