Refactor upload-only to process bazel metrics outside of upload.go

Bug: 279987768
Test: m nothing
Test: b build libcore:all (with prints to verify similiar data)
Change-Id: I01d960a7215be30728c9e90f52c2455fd21cf1b8
diff --git a/ui/build/upload.go b/ui/build/upload.go
index ee4a5b3..9f14bdd 100644
--- a/ui/build/upload.go
+++ b/ui/build/upload.go
@@ -18,21 +18,16 @@
 // another.
 
 import (
-	"bufio"
 	"fmt"
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"strconv"
-	"strings"
 	"time"
 
-	"android/soong/shared"
 	"android/soong/ui/metrics"
 
 	"google.golang.org/protobuf/proto"
 
-	bazel_metrics_proto "android/soong/ui/metrics/bazel_metrics_proto"
 	upload_proto "android/soong/ui/metrics/upload_proto"
 )
 
@@ -78,123 +73,16 @@
 	return metricsFiles
 }
 
-func parseTimingToNanos(str string) int64 {
-	millisString := removeDecimalPoint(str)
-	timingMillis, _ := strconv.ParseInt(millisString, 10, 64)
-	return timingMillis * 1000000
-}
-
-func parsePercentageToTenThousandths(str string) int32 {
-	percentageString := removeDecimalPoint(str)
-	//remove the % at the end of the string
-	percentage := strings.ReplaceAll(percentageString, "%", "")
-	percentagePortion, _ := strconv.ParseInt(percentage, 10, 32)
-	return int32(percentagePortion)
-}
-
-func removeDecimalPoint(numString string) string {
-	// The format is always 0.425 or 10.425
-	return strings.ReplaceAll(numString, ".", "")
-}
-
-func parseTotal(line string) int64 {
-	words := strings.Fields(line)
-	timing := words[3]
-	return parseTimingToNanos(timing)
-}
-
-func parsePhaseTiming(line string) bazel_metrics_proto.PhaseTiming {
-	words := strings.Fields(line)
-	getPhaseNameAndTimingAndPercentage := func([]string) (string, int64, int32) {
-		// Sample lines include:
-		// Total launch phase time   0.011 s    2.59%
-		// Total target pattern evaluation phase time  0.011 s    2.59%
-		var beginning int
-		var end int
-		for ind, word := range words {
-			if word == "Total" {
-				beginning = ind + 1
-			} else if beginning > 0 && word == "phase" {
-				end = ind
-				break
-			}
-		}
-		phaseName := strings.Join(words[beginning:end], " ")
-
-		// end is now "phase" - advance by 2 for timing and 4 for percentage
-		percentageString := words[end+4]
-		timingString := words[end+2]
-		timing := parseTimingToNanos(timingString)
-		percentagePortion := parsePercentageToTenThousandths(percentageString)
-		return phaseName, timing, percentagePortion
-	}
-
-	phaseName, timing, portion := getPhaseNameAndTimingAndPercentage(words)
-	phaseTiming := bazel_metrics_proto.PhaseTiming{}
-	phaseTiming.DurationNanos = &timing
-	phaseTiming.PortionOfBuildTime = &portion
-
-	phaseTiming.PhaseName = &phaseName
-	return phaseTiming
-}
-
-// This method takes a file created by bazel's --analyze-profile mode and
-// writes bazel metrics data to the provided filepath.
-// TODO(b/279987768) - move this outside of upload.go
-func processBazelMetrics(bazelProfileFile string, bazelMetricsFile string, ctx Context, config Config) {
-	if bazelProfileFile == "" {
-		return
-	}
-
-	readBazelProto := func(filepath string) bazel_metrics_proto.BazelMetrics {
-		//serialize the proto, write it
-		bazelMetrics := bazel_metrics_proto.BazelMetrics{}
-
-		file, err := os.ReadFile(filepath)
-		if err != nil {
-			ctx.Fatalln("Error reading metrics file\n", err)
-		}
-
-		scanner := bufio.NewScanner(strings.NewReader(string(file)))
-		scanner.Split(bufio.ScanLines)
-
-		var phaseTimings []*bazel_metrics_proto.PhaseTiming
-		for scanner.Scan() {
-			line := scanner.Text()
-			if strings.HasPrefix(line, "Total run time") {
-				total := parseTotal(line)
-				bazelMetrics.Total = &total
-			} else if strings.HasPrefix(line, "Total") {
-				phaseTiming := parsePhaseTiming(line)
-				phaseTimings = append(phaseTimings, &phaseTiming)
-			}
-		}
-		bazelMetrics.PhaseTimings = phaseTimings
-
-		return bazelMetrics
-	}
-
-	if _, err := os.Stat(bazelProfileFile); err != nil {
-		// We can assume bazel didn't run if the profile doesn't exist
-		return
-	}
-	bazelProto := readBazelProto(bazelProfileFile)
-	bazelProto.ExitCode = proto.Int32(config.bazelExitCode)
-	shared.Save(&bazelProto, bazelMetricsFile)
-}
-
 // UploadMetrics uploads a set of metrics files to a server for analysis.
 // The metrics files are first copied to a temporary directory
 // and the uploader is then executed in the background to allow the user/system
 // to continue working. Soong communicates to the uploader through the
 // upload_proto raw protobuf file.
-func UploadMetrics(ctx Context, config Config, simpleOutput bool, buildStarted time.Time, bazelProfileFile string, bazelMetricsFile string, paths ...string) {
+func UploadMetrics(ctx Context, config Config, simpleOutput bool, buildStarted time.Time, paths ...string) {
 	ctx.BeginTrace(metrics.RunSetupTool, "upload_metrics")
 	defer ctx.EndTrace()
 
 	uploader := config.MetricsUploaderApp()
-	processBazelMetrics(bazelProfileFile, bazelMetricsFile, ctx, config)
-
 	if uploader == "" {
 		// If the uploader path was not specified, no metrics shall be uploaded.
 		return