In pg_upgrade, fix the -l/log option to work on Windows.

Also, double-quote the log file name in all places, to allow (on all
platforms) log file names with spaces.

Back patch to 9.0 and 9.1.

contrib/pg_upgrade/check.c

@@ -170,7 +170,7 @@ issue_warnings(char *sequence_script_file_name)
 					  "--no-psqlrc --port %d --username \"%s\" "
 					  "-f \"%s\" --dbname template1 >> \"%s\"" SYSTEMQUOTE,
 					  new_cluster.bindir, new_cluster.port, os_info.user,
-					  sequence_script_file_name, log_opts.filename);
+					  sequence_script_file_name, log_opts.filename2);
 			unlink(sequence_script_file_name);
 			check_ok();
 		}

contrib/pg_upgrade/option.c

@@ -192,8 +192,15 @@ parseCommandLine(int argc, char *argv[])
 			pg_log(PG_FATAL, "cannot write to log file %s\n", log_opts.filename);
 	}
 	else
-		log_opts.filename = strdup(DEVNULL);
+		log_opts.filename = pg_strdup(DEVNULL);
 
+	/* WIN32 files do not accept writes from multiple processes */
+#ifndef WIN32
+	log_opts.filename2 = pg_strdup(log_opts.filename);
+#else
+	log_opts.filename2 = pg_strdup(DEVNULL);
+#endif
+		
 	/* if no debug file name, output to the terminal */
 	if (log_opts.debug && !log_opts.debug_fd)
 	{

contrib/pg_upgrade/pg_upgrade.c

@@ -193,8 +193,8 @@ prepare_new_cluster(void)
 	prep_status("Analyzing all rows in the new cluster");
 	exec_prog(true,
 			  SYSTEMQUOTE "\"%s/vacuumdb\" --port %d --username \"%s\" "
-			  "--all --analyze >> %s 2>&1" SYSTEMQUOTE,
-	  new_cluster.bindir, new_cluster.port, os_info.user, log_opts.filename);
+			  "--all --analyze >> \"%s\" 2>&1" SYSTEMQUOTE,
+	  new_cluster.bindir, new_cluster.port, os_info.user, log_opts.filename2);
 	check_ok();
 
 	/*
@@ -206,8 +206,8 @@ prepare_new_cluster(void)
 	prep_status("Freezing all rows on the new cluster");
 	exec_prog(true,
 			  SYSTEMQUOTE "\"%s/vacuumdb\" --port %d --username \"%s\" "
-			  "--all --freeze >> %s 2>&1" SYSTEMQUOTE,
-	  new_cluster.bindir, new_cluster.port, os_info.user, log_opts.filename);
+			  "--all --freeze >> \"%s\" 2>&1" SYSTEMQUOTE,
+	  new_cluster.bindir, new_cluster.port, os_info.user, log_opts.filename2);
 	check_ok();
 
 	get_pg_database_relfilenode(&new_cluster);
@@ -245,7 +245,7 @@ prepare_new_databases(void)
 			  "--no-psqlrc --port %d --username \"%s\" "
 			  "-f \"%s/%s\" --dbname template1 >> \"%s\"" SYSTEMQUOTE,
 			  new_cluster.bindir, new_cluster.port, os_info.user, os_info.cwd,
-			  GLOBALS_DUMP_FILE, log_opts.filename);
+			  GLOBALS_DUMP_FILE, log_opts.filename2);
 	check_ok();
 
 	/* we load this to get a current list of databases */
@@ -276,7 +276,7 @@ create_new_objects(void)
 			  "--no-psqlrc --port %d --username \"%s\" "
 			  "-f \"%s/%s\" --dbname template1 >> \"%s\"" SYSTEMQUOTE,
 			  new_cluster.bindir, new_cluster.port, os_info.user, os_info.cwd,
-			  DB_DUMP_FILE, log_opts.filename);
+			  DB_DUMP_FILE, log_opts.filename2);
 	check_ok();
 
 	/* regenerate now that we have objects in the databases */
@@ -324,7 +324,7 @@ copy_clog_xlog_xid(void)
 	exec_prog(true, SYSTEMQUOTE "\"%s/pg_resetxlog\" -l %u,%u,%u \"%s\" >> \"%s\" 2>&1" SYSTEMQUOTE,
 			  new_cluster.bindir, old_cluster.controldata.chkpnt_tli,
 			old_cluster.controldata.logid, old_cluster.controldata.nxtlogseg,
-			  new_cluster.pgdata, log_opts.filename);
+			  new_cluster.pgdata, log_opts.filename2);
 	check_ok();
 }
 

contrib/pg_upgrade/pg_upgrade.h

@@ -199,6 +199,16 @@ typedef struct
 typedef struct
 {
 	char	   *filename;		/* name of log file (may be /dev/null) */
+	/*
+	 * WIN32 files do not accept writes from multiple processes
+	 *
+	 * On Win32, we can't send both pg_upgrade output and command output to the
+	 * same file because we get the error: "The process cannot access the file
+	 * because it is being used by another process." so we have to send all
+	 * other output to 'nul'.  Therefore, we set this to DEVNULL on Win32, and
+	 * it equals 'filename' on all other platforms.
+	 */
+	char	   *filename2;
 	FILE	   *fd;				/* log FILE */
 	bool		debug;			/* TRUE -> log more information */
 	FILE	   *debug_fd;		/* debug-level log FILE */

contrib/pg_upgrade/server.c

@@ -147,19 +147,6 @@ start_postmaster(ClusterInfo *cluster)
 	bool		exit_hook_registered = false;
 	int			pg_ctl_return = 0;
 
-#ifndef WIN32
-	char	   *output_filename = log_opts.filename;
-#else
-
-	/*
-	 * On Win32, we can't send both pg_upgrade output and pg_ctl output to the
-	 * same file because we get the error: "The process cannot access the file
-	 * because it is being used by another process." so we have to send all
-	 * other output to 'nul'.
-	 */
-	char	   *output_filename = DEVNULL;
-#endif
-
 	if (!exit_hook_registered)
 	{
 #ifdef HAVE_ATEXIT
@@ -180,11 +167,11 @@ start_postmaster(ClusterInfo *cluster)
 	snprintf(cmd, sizeof(cmd),
 			 SYSTEMQUOTE "\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" "
 			 "-o \"-p %d %s\" start >> \"%s\" 2>&1" SYSTEMQUOTE,
-			 cluster->bindir, output_filename, cluster->pgdata, cluster->port,
+			 cluster->bindir, log_opts.filename2, cluster->pgdata, cluster->port,
 			 (cluster->controldata.cat_ver >=
 			  BINARY_UPGRADE_SERVER_FLAG_CAT_VER) ? "-b" :
 			 "-c autovacuum=off -c autovacuum_freeze_max_age=2000000000",
-			 log_opts.filename);
+			 log_opts.filename2);
 
 	/*
 	 * Don't throw an error right away, let connecting throw the error because
@@ -221,13 +208,6 @@ stop_postmaster(bool fast)
 	const char *bindir;
 	const char *datadir;
 
-#ifndef WIN32
-	char	   *output_filename = log_opts.filename;
-#else
-	/* See comment in start_postmaster() about why win32 output is ignored. */
-	char	   *output_filename = DEVNULL;
-#endif
-
 	if (os_info.running_cluster == &old_cluster)
 	{
 		bindir = old_cluster.bindir;
@@ -244,8 +224,8 @@ stop_postmaster(bool fast)
 	snprintf(cmd, sizeof(cmd),
 			 SYSTEMQUOTE "\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" %s stop >> "
 			 "\"%s\" 2>&1" SYSTEMQUOTE,
-			 bindir, output_filename, datadir, fast ? "-m fast" : "",
-			 output_filename);
+			 bindir, log_opts.filename2, datadir, fast ? "-m fast" : "",
+			 log_opts.filename2);
 
 	exec_prog(fast ? false : true, "%s", cmd);