[6.4.0] Add formatted timestamp entries to volatile workspace status file.

site/en/docs/user-manual.md

@@ -1270,6 +1270,8 @@ The contract is:
  Bazel always outputs the following volatile keys:
  * `BUILD_TIMESTAMP`: time of the build in seconds since the Unix Epoch (the value
  of `System.currentTimeMillis()` divided by a thousand)
+ * `FORMATTED_DATE`: time of the build Formatted as
+ `yyyy MMM d HH mm ss EEE`(for example 2023 Jun 2 01 44 29 Fri) in UTC.
 
 On Linux/macOS you can pass `--workspace_status_command=/bin/true` to
 disable retrieving workspace status, because `true` does nothing, successfully (exits

src/main/java/com/google/devtools/build/lib/bazel/BazelWorkspaceStatusModule.java

@@ -62,6 +62,9 @@
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
 import java.util.Map;
 import java.util.TreeMap;
 import javax.annotation.Nullable;
@@ -80,6 +83,13 @@ static class BazelWorkspaceStatusAction extends WorkspaceStatusAction {
  private final String username;
  private final String hostname;
 
+ private static final DateTimeFormatter TIME_FORMAT =
+ DateTimeFormatter.ofPattern("yyyy MMM d HH mm ss EEE");
+
+ private static String format(long timestamp) {
+ return Instant.ofEpochMilli(timestamp).atZone(ZoneOffset.UTC).format(TIME_FORMAT);
+ }
+
  BazelWorkspaceStatusAction(
  Artifact stableStatus, Artifact volatileStatus, String username, String hostname) {
  super(
@@ -182,6 +192,7 @@ public ActionResult execute(ActionExecutionContext actionExecutionContext)
  stableMap.put(BuildInfo.BUILD_USER, username);
  volatileMap.put(
  BuildInfo.BUILD_TIMESTAMP, Long.toString(getCurrentTimeMillis(clientEnv) / 1000));
+ volatileMap.put("FORMATTED_DATE", format(getCurrentTimeMillis(clientEnv) / 1000 * 1000));
  try {
  Map<String, String> statusMap =
  parseWorkspaceStatus(getAdditionalWorkspaceStatus(options, actionExecutionContext));