1 files changed, 84 insertions, 0 deletions
diff --git a/src/backend/access/transam/xlogbackup.c b/src/backend/access/transam/xlogbackup.c
new file mode 100644
index 0000000..23461c9
--- /dev/null
+++ b/src/backend/access/transam/xlogbackup.c
@@ -0,0 +1,84 @@
+/*-------------------------------------------------------------------------
+ *
+ * xlogbackup.c
+ *		Internal routines for base backups.
+ *
+ * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * IDENTIFICATION
+ *      src/backend/access/transam/xlogbackup.c
+ *-------------------------------------------------------------------------
+ */
+
+#include "postgres.h"
+
+#include "access/xlog.h"
+#include "access/xlog_internal.h"
+#include "access/xlogbackup.h"
+
+/*
+ * Build contents for backup_label or backup history file.
+ *
+ * When ishistoryfile is true, it creates the contents for a backup history
+ * file, otherwise it creates contents for a backup_label file.
+ *
+ * Returns the result generated as a palloc'd string.
+ */
+char *
+build_backup_content(BackupState *state, bool ishistoryfile)
+{
+	char		startstrbuf[128];
+	char		startxlogfile[MAXFNAMELEN]; /* backup start WAL file */
+	XLogSegNo	startsegno;
+	StringInfo	result = makeStringInfo();
+	char	   *data;
+
+	Assert(state != NULL);
+
+	/* Use the log timezone here, not the session timezone */
+	pg_strftime(startstrbuf, sizeof(startstrbuf), "%Y-%m-%d %H:%M:%S %Z",
+				pg_localtime(&state->starttime, log_timezone));
+
+	XLByteToSeg(state->startpoint, startsegno, wal_segment_size);
+	XLogFileName(startxlogfile, state->starttli, startsegno, wal_segment_size);
+	appendStringInfo(result, "START WAL LOCATION: %X/%X (file %s)\n",
+					 LSN_FORMAT_ARGS(state->startpoint), startxlogfile);
+
+	if (ishistoryfile)
+	{
+		char		stopxlogfile[MAXFNAMELEN];	/* backup stop WAL file */
+		XLogSegNo	stopsegno;
+
+		XLByteToSeg(state->stoppoint, stopsegno, wal_segment_size);
+		XLogFileName(stopxlogfile, state->stoptli, stopsegno, wal_segment_size);
+		appendStringInfo(result, "STOP WAL LOCATION: %X/%X (file %s)\n",
+						 LSN_FORMAT_ARGS(state->stoppoint), stopxlogfile);
+	}
+
+	appendStringInfo(result, "CHECKPOINT LOCATION: %X/%X\n",
+					 LSN_FORMAT_ARGS(state->checkpointloc));
+	appendStringInfo(result, "BACKUP METHOD: streamed\n");
+	appendStringInfo(result, "BACKUP FROM: %s\n",
+					 state->started_in_recovery ? "standby" : "primary");
+	appendStringInfo(result, "START TIME: %s\n", startstrbuf);
+	appendStringInfo(result, "LABEL: %s\n", state->name);
+	appendStringInfo(result, "START TIMELINE: %u\n", state->starttli);
+
+	if (ishistoryfile)
+	{
+		char		stopstrfbuf[128];
+
+		/* Use the log timezone here, not the session timezone */
+		pg_strftime(stopstrfbuf, sizeof(stopstrfbuf), "%Y-%m-%d %H:%M:%S %Z",
+					pg_localtime(&state->stoptime, log_timezone));
+
+		appendStringInfo(result, "STOP TIME: %s\n", stopstrfbuf);
+		appendStringInfo(result, "STOP TIMELINE: %u\n", state->stoptli);
+	}
+
+	data = result->data;
+	pfree(result);
+
+	return data;
+}