Merge "[Ravenwood] Add timestamp to stats CSV" into main

ravenwood/scripts/ravenwood-stats-collector.sh

@@ -24,6 +24,8 @@ apis=/tmp/ravenwood-apis-all.csv
 # Where the input files are.
 path=$ANDROID_BUILD_TOP/out/host/linux-x86/testcases/ravenwood-stats-checker/x86_64/
 
+timestamp="$(date --iso-8601=seconds)"
+
 m() {
     ${ANDROID_BUILD_TOP}/build/soong/soong_ui.bash --make-mode "$@"
 }
@@ -39,15 +41,15 @@ dump() {
     local jar=$1
     local file=$2
 
-    # Use sed to remove the header + prepend the jar filename.
-    sed -e '1d' -e "s/^/$jar,/" $file
+    # Remove the header row, and prepend the columns.
+    sed -e '1d' -e "s/^/$jar,$timestamp,/" $file
 }
 
 collect_stats() {
     local out="$1"
     {
         # Copy the header, with the first column appended.
-        echo -n "Jar,"
+        echo -n "Jar,Generated Date,"
         head -n 1 hoststubgen_framework-minus-apex_stats.csv
 
         dump "framework-minus-apex" hoststubgen_framework-minus-apex_stats.csv
@@ -61,7 +63,7 @@ collect_apis() {
     local out="$1"
     {
         # Copy the header, with the first column appended.
-        echo -n "Jar,"
+        echo -n "Jar,Generated Date,"
         head -n 1 hoststubgen_framework-minus-apex_apis.csv
 
         dump "framework-minus-apex"  hoststubgen_framework-minus-apex_apis.csv