Add PGETC (for pg_service.conf) and PGLOCALE (for locale dir)

environment variable processing to libpq.

The patch also adds code to our client apps so we set the environment
variable directly based on our binary location, unless it is already
set. This will allow our applications to emit proper locale messages
that are generated in libpq.

doc/src/sgml/libpq.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.155 2004/05/14 18:04:02 neilc Exp $
+$PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.156 2004/06/03 00:07:35 momjian Exp $
 -->
 
  <chapter id="libpq">
@@ -3582,6 +3582,24 @@ sets the default mode for the genetic query optimizer.
 (Equivalent to <literal>SET geqo TO ...</literal>.)
 </para>
 </listitem>
+<listitem>
+<para>
+<indexterm>
+ <primary><envar>PGETC</envar></primary>
+</indexterm>
+<envar>PGETC</envar>
+sets the directory containing the <filename>pg_service.conf</> file.
+</para>
+</listitem>
+<listitem>
+<para>
+<indexterm>
+ <primary><envar>PGLOCALE</envar></primary>
+</indexterm>
+<envar>PGLOCALE</envar>
+sets the directory containing the <literal>locale</> files.
+</para>
+</listitem>
 </itemizedlist>
 
 Refer to the <acronym>SQL</acronym> command <command>SET</command>

src/backend/main/main.c

@@ -13,7 +13,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/main/main.c,v 1.85 2004/05/29 22:48:19 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/main/main.c,v 1.86 2004/06/03 00:07:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -152,7 +152,7 @@ main(int argc, char *argv[])
 	 * allow startup error messages to be localized.
 	 */
 
-	set_pglocale(argv[0], "postgres");
+	set_pglocale_pgservice(argv[0], "postgres");
 
 #ifdef WIN32
 

src/bin/initdb/initdb.c

@@ -39,7 +39,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  * Portions taken from FreeBSD.
  *
- * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.34 2004/06/01 02:53:59 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.35 2004/06/03 00:07:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1788,7 +1788,7 @@ main(int argc, char *argv[])
 	{"global", "pg_xlog", "pg_clog", "base", "base/1"};
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "initdb");
+	set_pglocale_pgservice(argv[0], "initdb");
 
     if (argc > 1)
     {

src/bin/pg_controldata/pg_controldata.c

@@ -6,7 +6,7 @@
  * copyright (c) Oliver Elphick <olly@lfix.co.uk>, 2001;
  * licence: BSD
  *
- * $PostgreSQL: pgsql/src/bin/pg_controldata/pg_controldata.c,v 1.16 2004/05/25 01:00:23 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_controldata/pg_controldata.c,v 1.17 2004/06/03 00:07:36 momjian Exp $
  */
 #include "postgres.h"
 
@@ -77,7 +77,7 @@ main(int argc, char *argv[])
 	char	   *strftime_fmt = "%c";
 	const char *progname;
 
-	set_pglocale(argv[0], "pg_controldata");
+	set_pglocale_pgservice(argv[0], "pg_controldata");
 
 	progname = get_progname(argv[0]);
 

src/bin/pg_ctl/pg_ctl.c

@@ -4,7 +4,7 @@
  *
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/pg_ctl/pg_ctl.c,v 1.5 2004/06/01 22:03:18 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_ctl/pg_ctl.c,v 1.6 2004/06/03 00:07:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -824,7 +824,7 @@ main(int argc, char **argv)
 #endif
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pg_ctl");
+	set_pglocale_pgservice(argv[0], "pg_ctl");
 
 	/*
 	 * save argv[0] so do_start() can look for the postmaster if

src/bin/pg_dump/pg_dump.c

@@ -12,7 +12,7 @@
  *	by PostgreSQL
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.372 2004/05/26 18:24:22 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.373 2004/06/03 00:07:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -242,7 +242,7 @@ main(int argc, char **argv)
 	};
 	int			optindex;
 
-	set_pglocale(argv[0], "pg_dump");
+	set_pglocale_pgservice(argv[0], "pg_dump");
 
 	g_verbose = false;
 

src/bin/pg_dump/pg_dumpall.c

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
- * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.35 2004/05/25 01:00:24 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.36 2004/06/03 00:07:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -101,7 +101,7 @@ main(int argc, char *argv[])
 
 	int			optindex;
 
-	set_pglocale(argv[0], "pg_dump");
+	set_pglocale_pgservice(argv[0], "pg_dump");
 
 	progname = get_progname(argv[0]);
 

src/bin/pg_dump/pg_restore.c

@@ -34,7 +34,7 @@
  *
  *
  * IDENTIFICATION
- *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_restore.c,v 1.57 2004/05/25 01:00:24 momjian Exp $
+ *		$PostgreSQL: pgsql/src/bin/pg_dump/pg_restore.c,v 1.58 2004/06/03 00:07:37 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -121,7 +121,7 @@ main(int argc, char **argv)
 		{NULL, 0, NULL, 0}
 	};
 
-	set_pglocale(argv[0], "pg_dump");
+	set_pglocale_pgservice(argv[0], "pg_dump");
 
 	opts = NewRestoreOptions();
 

src/bin/pg_resetxlog/pg_resetxlog.c

@@ -23,7 +23,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/pg_resetxlog/pg_resetxlog.c,v 1.19 2004/05/25 01:00:25 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/pg_resetxlog/pg_resetxlog.c,v 1.20 2004/06/03 00:07:37 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -102,7 +102,7 @@ main(int argc, char *argv[])
 	int			fd;
 	char		path[MAXPGPATH];
 
-	set_pglocale(argv[0], "pg_resetxlog");
+	set_pglocale_pgservice(argv[0], "pg_resetxlog");
 
 	progname = get_progname(argv[0]);
 

src/bin/psql/startup.c

@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2000-2003, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/psql/startup.c,v 1.94 2004/05/25 01:00:26 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/startup.c,v 1.95 2004/06/03 00:07:37 momjian Exp $
  */
 #include "postgres_fe.h"
 
@@ -102,7 +102,7 @@ main(int argc, char *argv[])
 	char	   *password = NULL;
 	bool		need_pass;
 
-	set_pglocale(argv[0], "psql");
+	set_pglocale_pgservice(argv[0], "psql");
 
 	pset.progname = get_progname(argv[0]);
 

src/bin/scripts/clusterdb.c

@@ -4,7 +4,7 @@
  *
  * Portions Copyright (c) 2002-2003, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/scripts/clusterdb.c,v 1.8 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/clusterdb.c,v 1.9 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -58,7 +58,7 @@ main(int argc, char *argv[])
 	char	   *table = NULL;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "clusterdb", help);
 

src/bin/scripts/createdb.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/createdb.c,v 1.10 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/createdb.c,v 1.11 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -60,7 +60,7 @@ main(int argc, char *argv[])
 	PGresult   *result;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "createdb", help);
 

src/bin/scripts/createlang.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/createlang.c,v 1.11 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/createlang.c,v 1.12 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -61,7 +61,7 @@ main(int argc, char *argv[])
 	PGresult   *result;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "createlang", help);
 

src/bin/scripts/createuser.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/createuser.c,v 1.12 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/createuser.c,v 1.13 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -63,7 +63,7 @@ main(int argc, char *argv[])
 	PGresult   *result;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "createuser", help);
 

src/bin/scripts/dropdb.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/dropdb.c,v 1.11 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/dropdb.c,v 1.12 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -51,7 +51,7 @@ main(int argc, char *argv[])
 	PGresult   *result;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "dropdb", help);
 

src/bin/scripts/droplang.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/droplang.c,v 1.10 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/droplang.c,v 1.11 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -61,7 +61,7 @@ main(int argc, char *argv[])
 	PGresult   *result;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "droplang", help);
 

src/bin/scripts/dropuser.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/dropuser.c,v 1.10 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/dropuser.c,v 1.11 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -51,7 +51,7 @@ main(int argc, char *argv[])
 	PGresult   *result;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "dropuser", help);
 

src/bin/scripts/vacuumdb.c

@@ -5,7 +5,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/bin/scripts/vacuumdb.c,v 1.8 2004/06/01 02:54:09 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/scripts/vacuumdb.c,v 1.9 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -66,7 +66,7 @@ main(int argc, char *argv[])
 	bool		verbose = false;
 
 	progname = get_progname(argv[0]);
-	set_pglocale(argv[0], "pgscripts");
+	set_pglocale_pgservice(argv[0], "pgscripts");
 
 	handle_help_version_opts(argc, argv, "vacuumdb", help);
 

src/include/port.h

@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/port.h,v 1.39 2004/05/27 14:39:32 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/port.h,v 1.40 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -32,7 +32,7 @@ extern void get_include_path(const char *my_exec_path, char *ret_path);
 extern void get_pkginclude_path(const char *my_exec_path, char *ret_path);
 extern void get_pkglib_path(const char *my_exec_path, char *ret_path);
 extern void get_locale_path(const char *my_exec_path, char *ret_path);
-extern void set_pglocale(const char *argv0, const char *app);
+extern void set_pglocale_pgservice(const char *argv0, const char *app);
 
 /*
  *	is_absolute_path

src/interfaces/libpq/fe-connect.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.271 2004/05/26 18:35:51 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-connect.c,v 1.272 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2363,17 +2363,13 @@ pqPacketSend(PGconn *conn, char pack_type,
 
 
 
-#ifndef SYSCONFDIR
-#error "You must compile this file with SYSCONFDIR defined."
-#endif
-
 #define MAXBUFSIZE 256
 
 static int
 parseServiceInfo(PQconninfoOption *options, PQExpBuffer errorMessage)
 {
 	char	   *service = conninfo_getval(options, "service");
-	char	   *serviceFile = SYSCONFDIR "/pg_service.conf";
+	char		serviceFile[MAXPGPATH];
 	bool		group_found = false;
 	int			linenr = 0,
 				i;
@@ -2386,6 +2382,13 @@ parseServiceInfo(PQconninfoOption *options, PQExpBuffer errorMessage)
 	if (service == NULL)
 		service = getenv("PGSERVICE");
 
+	/*
+	 *	This could be used by any application so we can't use the binary
+	 *	location to find our config files.
+	 */	
+	snprintf(serviceFile, MAXPGPATH, "%s/pg_service.conf",
+			 getenv("PGETC") ? getenv("PGETC") : SYSCONFDIR);
+
 	if (service != NULL)
 	{
 		FILE	   *f;

src/interfaces/libpq/fe-misc.c

@@ -23,7 +23,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-misc.c,v 1.106 2004/05/25 01:00:29 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/interfaces/libpq/fe-misc.c,v 1.107 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1132,7 +1132,7 @@ libpq_gettext(const char *msgid)
 	{
 		already_bound = 1;
 		/* No relocatable lookup here because the binary could be anywhere */
-		bindtextdomain("libpq", LOCALEDIR);
+		bindtextdomain("libpq", getenv("PGLOCALE") ? getenv("PGLOCALE") : LOCALEDIR);
 	}
 
 	return dgettext("libpq", msgid);

src/port/path.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/port/path.c,v 1.16 2004/05/26 19:00:31 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/port/path.c,v 1.17 2004/06/03 00:07:38 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -222,32 +222,47 @@ get_locale_path(const char *my_exec_path, char *ret_path)
 
 
 /*
- *	set_pglocale
+ *	set_pglocale_pgservice
  *
- *	Set application-specific locale
+ *	Set application-specific locale and service directory
  *
  *	This function takes an argv[0] rather than a full path.
  */
 void
-set_pglocale(const char *argv0, const char *app)
+set_pglocale_pgservice(const char *argv0, const char *app)
 {
-#ifdef ENABLE_NLS
 	char path[MAXPGPATH];
 	char my_exec_path[MAXPGPATH];
-#endif
+	char env_path[MAXPGPATH + strlen("PGLOCALE=")]; /* longer than PGETC */
 
 	/* don't set LC_ALL in the backend */
 	if (strcmp(app, "postgres") != 0)
 		setlocale(LC_ALL, "");
 
-#ifdef ENABLE_NLS
 	if (find_my_exec(argv0, my_exec_path) < 0)
 		return;
 		
+#ifdef ENABLE_NLS
 	get_locale_path(my_exec_path, path);
 	bindtextdomain(app, path);
 	textdomain(app);
+
+	if (!getenv("PGLOCALE"))
+	{
+		/* set for libpq to use */
+		sprintf(env_path, "PGLOCALE=%s", path);
+		putenv(env_path);
+	}
 #endif
+
+	if (!getenv("PGETC"))
+	{
+		get_etc_path(my_exec_path, path);
+	
+		/* set for libpq to use */
+		sprintf(env_path, "PGETC=%s", path);
+		putenv(env_path);
+	}
 }