Àlvaro told me he got a Spanish-language report that pg_upgrade
failed because it required pg_config, and pg_config is only supplied
with the devel packages.

I initially thought that it was a packaging problem, but I later
realized the pg_config is mostly developer settings, and that using
pg_config was not getting any change to libdir by dynamic_library_path
in postgresql.conf, and that I should just merge the pg_upgrade_support
detection code into the existing shared library detection "LOAD" code I
already had.

This avoids the pg_config dependency, works better for libdir, and
reduces the amount of code.

Patch attached.  Should this be backpatched to PG 9.1;  I think so.

-- 
  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +
diff --git a/contrib/pg_upgrade/check.c b/contrib/pg_upgrade/check.c
new file mode 100644
index 9fbfd40..03382d9
*** a/contrib/pg_upgrade/check.c
--- b/contrib/pg_upgrade/check.c
*************** static void check_is_super_user(ClusterI
*** 20,26 ****
  static void check_for_prepared_transactions(ClusterInfo *cluster);
  static void check_for_isn_and_int8_passing_mismatch(ClusterInfo *cluster);
  static void check_for_reg_data_type_usage(ClusterInfo *cluster);
- static void check_for_support_lib(ClusterInfo *cluster);
  static void get_bin_version(ClusterInfo *cluster);
  
  #ifndef WIN32
--- 20,25 ----
*************** check_cluster_versions(void)
*** 270,277 ****
  void
  check_cluster_compatibility(bool live_check)
  {
- 	check_for_support_lib(&new_cluster);
- 
  	/* get/check pg_control data of servers */
  	get_control_data(&old_cluster, live_check);
  	get_control_data(&new_cluster, false);
--- 269,274 ----
*************** check_for_reg_data_type_usage(ClusterInf
*** 841,885 ****
  }
  
  
- /*
-  * Test pg_upgrade_support.so is in the proper place.	 We cannot copy it
-  * ourselves because install directories are typically root-owned.
-  */
- static void
- check_for_support_lib(ClusterInfo *cluster)
- {
- 	char		cmd[MAXPGPATH];
- 	char		libdir[MAX_STRING];
- 	char		libfile[MAXPGPATH];
- 	FILE	   *lib_test;
- 	FILE	   *output;
- 
- 	snprintf(cmd, sizeof(cmd), "\"%s/pg_config\" --pkglibdir", cluster->bindir);
- 
- 	if ((output = popen(cmd, "r")) == NULL ||
- 		fgets(libdir, sizeof(libdir), output) == NULL)
- 		pg_log(PG_FATAL, "Could not get pkglibdir data using %s: %s\n",
- 			   cmd, getErrorText(errno));
- 
- 
- 	pclose(output);
- 
- 	/* Remove trailing newline */
- 	if (strchr(libdir, '\n') != NULL)
- 		*strchr(libdir, '\n') = '\0';
- 
- 	snprintf(libfile, sizeof(libfile), "%s/pg_upgrade_support%s", libdir,
- 			 DLSUFFIX);
- 
- 	if ((lib_test = fopen(libfile, "r")) == NULL)
- 		pg_log(PG_FATAL,
- 			   "The pg_upgrade_support module must be created and installed in the %s cluster.\n",
- 				CLUSTER_NAME(cluster));
- 
- 	fclose(lib_test);
- }
- 
- 
  static void
  get_bin_version(ClusterInfo *cluster)
  {
--- 838,843 ----
diff --git a/contrib/pg_upgrade/function.c b/contrib/pg_upgrade/function.c
new file mode 100644
index 3225039..fe8fb40
*** a/contrib/pg_upgrade/function.c
--- b/contrib/pg_upgrade/function.c
***************
*** 13,18 ****
--- 13,19 ----
  
  #include "access/transam.h"
  
+ #define PG_UPGRADE_SUPPORT	"$libdir/pg_upgrade_support"
  
  /*
   * install_support_functions_in_new_db()
*************** get_loadable_libraries(void)
*** 154,170 ****
  		PQfinish(conn);
  	}
  
  	/* Allocate what's certainly enough space */
! 	if (totaltups > 0)
! 		os_info.libraries = (char **) pg_malloc(totaltups * sizeof(char *));
! 	else
! 		os_info.libraries = NULL;
  
  	/*
  	 * Now remove duplicates across DBs.  This is pretty inefficient code, but
  	 * there probably aren't enough entries to matter.
  	 */
  	totaltups = 0;
  
  	for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
  	{
--- 155,171 ----
  		PQfinish(conn);
  	}
  
+ 	totaltups++;	/* reserve for pg_upgrade_support */
+ 
  	/* Allocate what's certainly enough space */
! 	os_info.libraries = (char **) pg_malloc(totaltups * sizeof(char *));
  
  	/*
  	 * Now remove duplicates across DBs.  This is pretty inefficient code, but
  	 * there probably aren't enough entries to matter.
  	 */
  	totaltups = 0;
+ 	os_info.libraries[totaltups++] = pg_strdup(PG_UPGRADE_SUPPORT);
  
  	for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
  	{
*************** check_loadable_libraries(void)
*** 256,261 ****
--- 257,268 ----
  		if (PQresultStatus(res) != PGRES_COMMAND_OK)
  		{
  			found = true;
+ 
+ 			/* exit and report missing support library with special message */
+ 			if (strcmp(lib, PG_UPGRADE_SUPPORT) == 0)
+ 				pg_log(PG_FATAL,
+ 				   "The pg_upgrade_support module must be created and installed in the new cluster.\n");
+ 
  			if (script == NULL && (script = fopen_priv(output_path, "w")) == NULL)
  				pg_log(PG_FATAL, "Could not open file \"%s\": %s\n",
  					   output_path, getErrorText(errno));
-- 
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

Reply via email to