Add bazel profile related functions in paths.go

Bazel executions occurs in soong_ui and soong_cmd. To collection all
bazel metrics, several path functions are defined to return the path
to store a bazel profile gzipped file.

Bug: b/173028918
Test: m nothing
Change-Id: I78926c66f853233b3977aca22e8a3fcf28edda53

1 files changed, 14 insertions, 0 deletions

diff --git a/shared/paths.go b/shared/paths.go
index f5dc5ac44..24ba057aa 100644
--- a/shared/paths.go
+++ b/shared/paths.go
@@ -24,3 +24,17 @@ import (
 func TempDirForOutDir(outDir string) (tempPath string) {
 	return filepath.Join(outDir, ".temp")
 }
+
+// BazelMetricsDir returns the path where a set of bazel profile
+// files are stored for later processed by the metrics pipeline.
+func BazelMetricsDir(outDir string) string {
+	return filepath.Join(outDir, "bazel_metrics")
+}
+
+// BazelMetricsFilename returns the bazel profile filename based
+// on the action name. This is to help to store a set of bazel
+// profiles since bazel may execute multiple times during a single
+// build.
+func BazelMetricsFilename(outDir, actionName string) string {
+	return filepath.Join(BazelMetricsDir(outDir), actionName+"_bazel_profile.gz")
+}