PostgreSQL Source Code  git master
dump.c
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1 /*
2  * dump.c
3  *
4  * dump functions
5  *
6  * Copyright (c) 2010-2022, PostgreSQL Global Development Group
7  * src/bin/pg_upgrade/dump.c
8  */
9 
10 #include "postgres_fe.h"
11 
12 #include "fe_utils/string_utils.h"
13 #include "pg_upgrade.h"
14 
15 void
17 {
18  int dbnum;
19 
20  prep_status("Creating dump of global objects");
21 
22  /* run new pg_dumpall binary for globals */
23  exec_prog(UTILITY_LOG_FILE, NULL, true, true,
24  "\"%s/pg_dumpall\" %s --globals-only --quote-all-identifiers "
25  "--binary-upgrade %s -f \"%s/%s\"",
27  log_opts.verbose ? "--verbose" : "",
30  check_ok();
31 
32  prep_status_progress("Creating dump of database schemas");
33 
34  /* create per-db dump files */
35  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
36  {
37  char sql_file_name[MAXPGPATH],
38  log_file_name[MAXPGPATH];
39  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
41  escaped_connstr;
42 
44  appendPQExpBufferStr(&connstr, "dbname=");
45  appendConnStrVal(&connstr, old_db->db_name);
46  initPQExpBuffer(&escaped_connstr);
47  appendShellString(&escaped_connstr, connstr.data);
49 
50  pg_log(PG_STATUS, "%s", old_db->db_name);
51  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
52  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
53 
54  parallel_exec_prog(log_file_name, NULL,
55  "\"%s/pg_dump\" %s --schema-only --quote-all-identifiers "
56  "--binary-upgrade --format=custom %s --file=\"%s/%s\" %s",
58  log_opts.verbose ? "--verbose" : "",
60  sql_file_name, escaped_connstr.data);
61 
62  termPQExpBuffer(&escaped_connstr);
63  }
64 
65  /* reap all children */
66  while (reap_child(true) == true)
67  ;
68 
70  check_ok();
71 }
bool exec_prog(const char *log_filename, const char *opt_log_file, bool report_error, bool exit_on_error, const char *fmt,...)
Definition: exec.c:86
bool reap_child(bool wait_for_child)
Definition: parallel.c:278
void parallel_exec_prog(const char *log_file, const char *opt_log_file, const char *fmt,...)
Definition: parallel.c:62
void generate_old_dump(void)
Definition: dump.c:16
static void check_ok(void)
Definition: initdb.c:1862
#define MAXPGPATH
static char * connstr
Definition: pg_dumpall.c:88
ClusterInfo new_cluster
Definition: pg_upgrade.c:63
ClusterInfo old_cluster
Definition: pg_upgrade.c:62
#define GLOBALS_DUMP_FILE
Definition: pg_upgrade.h:30
#define DB_DUMP_LOG_FILE_MASK
Definition: pg_upgrade.h:43
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:45
void void pg_log(eLogType type, const char *fmt,...) pg_attribute_printf(2
LogOpts log_opts
Definition: util.c:17
void void prep_status_progress(const char *fmt,...) pg_attribute_printf(1
@ PG_STATUS
Definition: pg_upgrade.h:239
void prep_status(const char *fmt,...) pg_attribute_printf(1
void end_progress_output(void)
Definition: util.c:43
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:92
#define DB_DUMP_FILE_MASK
Definition: pg_upgrade.h:31
#define snprintf
Definition: port.h:238
void initPQExpBuffer(PQExpBuffer str)
Definition: pqexpbuffer.c:90
void appendPQExpBufferStr(PQExpBuffer str, const char *data)
Definition: pqexpbuffer.c:367
void termPQExpBuffer(PQExpBuffer str)
Definition: pqexpbuffer.c:129
void appendShellString(PQExpBuffer buf, const char *str)
Definition: string_utils.c:429
void appendConnStrVal(PQExpBuffer buf, const char *str)
Definition: string_utils.c:545
char * bindir
Definition: pg_upgrade.h:259
DbInfoArr dbarr
Definition: pg_upgrade.h:255
DbInfo * dbs
Definition: pg_upgrade.h:188
char * db_name
Definition: pg_upgrade.h:175
Oid db_oid
Definition: pg_upgrade.h:174
char * dumpdir
Definition: pg_upgrade.h:282
bool verbose
Definition: pg_upgrade.h:277