pgrewind-dry_run-fixes.patch

diff --git a/src/bin/pg_rewind/pg_rewind.c b/src/bin/pg_rewind/pg_rewind.c
index a7fd9e0cab..2cc32cd404 100644
--- a/src/bin/pg_rewind/pg_rewind.c
+++ b/src/bin/pg_rewind/pg_rewind.c
@@ -38,6 +38,7 @@ static void createBackupLabel(XLogRecPtr startpoint, TimeLineID starttli,
 
 static void digestControlFile(ControlFileData *ControlFile, char *source,
 							  size_t size);
+static void updateControlFile(ControlFileData *ControlFile);
 static void syncTargetDirectory(void);
 static void sanityChecks(void);
 static void findCommonAncestorTimeline(XLogRecPtr *recptr, int *tliIndex);
@@ -101,7 +102,7 @@ main(int argc, char **argv)
 		{"write-recovery-conf", no_argument, NULL, 'R'},
 		{"source-pgdata", required_argument, NULL, 1},
 		{"source-server", required_argument, NULL, 2},
-		{"no-ensure-shutdown", no_argument, NULL, 44},
+		{"no-ensure-shutdown", no_argument, NULL, 4},
 		{"version", no_argument, NULL, 'V'},
 		{"dry-run", no_argument, NULL, 'n'},
 		{"no-sync", no_argument, NULL, 'N'},
@@ -341,7 +342,7 @@ main(int argc, char **argv)
 	if (!rewind_needed)
 	{
 		pg_log_info("no rewind required");
-		if (writerecoveryconf)
+		if (writerecoveryconf && !dry_run)
 			WriteRecoveryConfig(conn, datadir_target,
 								GenerateRecoveryConfig(conn, NULL));
 		exit(0);
@@ -435,13 +436,13 @@ main(int argc, char **argv)
 	ControlFile_new.minRecoveryPoint = endrec;
 	ControlFile_new.minRecoveryPointTLI = endtli;
 	ControlFile_new.state = DB_IN_ARCHIVE_RECOVERY;
-	update_controlfile(datadir_target, &ControlFile_new, do_sync);
+	updateControlFile(&ControlFile_new);
 
 	if (showprogress)
 		pg_log_info("syncing target data directory");
 	syncTargetDirectory();
 
-	if (writerecoveryconf)
+	if (writerecoveryconf && !dry_run)
 		WriteRecoveryConfig(conn, datadir_target,
 							GenerateRecoveryConfig(conn, NULL));
 
@@ -782,6 +783,22 @@ digestControlFile(ControlFileData *ControlFile, char *src, size_t size)
 	checkControlFile(ControlFile);
 }
 
+/*
+ * Update the target's control file.
+ */
+static void
+updateControlFile(ControlFileData *ControlFile)
+{
+	/* update progress report with control file size */
+	fetch_done += PG_CONTROL_FILE_SIZE;
+	progress_report(false);
+
+	if (dry_run)
+		return;
+
+	update_controlfile(datadir_target, ControlFile, do_sync);
+}
+
 /*
  * Sync target data directory to ensure that modifications are safely on disk.
  *