Fixing install and OAuth

perf/server/data.go

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be found
 // in the LICENSE file.
 
 package main
 
 import (
         "encoding/json"
         "fmt"
         "io"
         "net/http"
         "os/exec"
         "reflect"
         "strconv"
         "strings"
         "time"
 )
 
 import (
+        "code.google.com/p/goauth2/compute/serviceaccount"
         "code.google.com/p/goauth2/oauth"
         "code.google.com/p/google-api-go-client/bigquery/v2"
         "github.com/oxtoacart/webbrowser"
 )
 
 const (
         // JSON doesn't support NaN or +/- Inf, so we need a valid float
         // to signal missing data that also has a compact JSON representation.
         MISSING_DATA_SENTINEL = 1e100
 )
@@ skipping 421 matching lines @@
 // TODO(jcgregorio) Actuall do the bit where we start a go routine.
 func NewData(doOauth bool, gitRepoDir string) (*Data, error) {
         var err error
         var client *http.Client
         if doOauth {
                 client, err = runFlow(config)
                 if err != nil {
                         return nil, fmt.Errorf("Failed to auth: %s", err)
                 }
         } else {
-                client = http.DefaultClient
+                client, err = serviceaccount.NewClient(nil)
+                if err != nil {
+                        return nil, fmt.Errorf("Failed to auth using a service account: %s", err)
+                }
         }
         service, err := bigquery.New(client)
         if err != nil {
                 return nil, fmt.Errorf("Failed to create a new BigQuery service object: %s", err)
         }
 
         // First query and get the list of hashes we are interested in and use that
         // and the git log results to fill in the Commits.
         allGitHashes, err := readCommitsFromGit(gitRepoDir)
         if err != nil {
@@ skipping 32 matching lines @@
 
         if err := populateTraces(service, all, hashToIndex, numSamples); err != nil {
                 // Fail fast, monit will restart us if we fail for some reason.
                 panic(err)
         }
 
         populateParamSet(all)
 
         return &Data{all: all}, nil
 }