Add global psql config file, psql.rc.sample.

doc/src/sgml/ref/psql-ref.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/psql-ref.sgml,v 1.112 2004/04/21 00:34:18 momjian Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/psql-ref.sgml,v 1.113 2004/04/22 01:53:17 momjian Exp $
 PostgreSQL documentation
 -->
 
@@ -440,7 +440,8 @@ PostgreSQL documentation
       <term><option>--no-psqlrc</></term>
       <listitem>
       <para>
-      Do not read the start-up file <filename>~/.psqlrc</filename>.
+      Do not read the start-up file <filename>/psql.rc</filename> or
+      <filename>~/.psqlrc</filename>.
       </para>
       </listitem>
     </varlistentry>
@@ -1859,8 +1860,9 @@ bar
 	<para>
 	 The autocommit-on mode is <productname>PostgreSQL</>'s traditional
 	 behavior, but autocommit-off is closer to the SQL spec.  If you
-	 prefer autocommit-off, you may wish to set it in
-	 your <filename>.psqlrc</filename> file.
+	 prefer autocommit-off, you may wish to set it in the system-wide
+         <filename>psql.rc</filename> or your 
+         <filename>.psqlrc</filename> file.
 	</para>
 	</note>
 	</listitem>
@@ -2488,9 +2490,12 @@ $endif
    <listitem>
     <para>
      Before starting up, <application>psql</application> attempts to
-     read and execute commands from the file
-     <filename>$HOME/.psqlrc</filename>. It could be used to set up
-     the client or the server to taste (using the <command>\set
+     read and execute commands from the the system-wide
+     <filename>psql.rc</filename> file and the  
+     <filename>$HOME/.psqlrc</filename> file in the user's home
+     directory.  See <filename><replaceable>PREFIX</>/share/psql.rc.sample</> 
+     for information on setting up the system-wide file.  It could be used 
+     to set up the client or the server to taste (using the <command>\set
      </command> and <command>SET</command> commands).
     </para>
    </listitem>

src/bin/psql/Makefile

@@ -5,7 +5,7 @@
 # Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
 # Portions Copyright (c) 1994, Regents of the University of California
 #
-# $PostgreSQL: pgsql/src/bin/psql/Makefile,v 1.40 2004/03/09 19:47:05 petere Exp $
+# $PostgreSQL: pgsql/src/bin/psql/Makefile,v 1.41 2004/04/22 01:53:37 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -15,7 +15,7 @@ include $(top_builddir)/src/Makefile.global
 
 REFDOCDIR= $(top_srcdir)/doc/src/sgml/ref
 
-override CPPFLAGS := -I$(libpq_srcdir) $(CPPFLAGS) -DFRONTEND
+override CPPFLAGS := -I$(libpq_srcdir) $(CPPFLAGS) -DFRONTEND -DSYSCONFDIR='"$(sysconfdir)"'
 
 OBJS=	command.o common.o help.o input.o stringutils.o mainloop.o copy.o \
 	startup.o prompt.o variables.o large_obj.o print.o describe.o \
@@ -50,6 +50,7 @@ distprep: $(srcdir)/sql_help.h $(srcdir)/psqlscan.c
 
 install: all installdirs
 	$(INSTALL_PROGRAM) psql$(X) $(DESTDIR)$(bindir)/psql$(X)
+	$(INSTALL_DATA) $(srcdir)/psql.rc.sample $(DESTDIR)$(datadir)/psql.rc.sample
 
 installdirs:
 	$(mkinstalldirs) $(DESTDIR)$(bindir)

src/bin/psql/psql.rc.sample

+--
+--	psql configuration file
+--
+--  This file is read before the .psqlrc file in the user's home directory.
+--
+--  Copy this to your sysconf directory (typically /usr/local/pgsql/etc) and
+--  rename it psql.rc.

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 1.88 2004/04/19 17:42:58 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/startup.c,v 1.89 2004/04/22 01:53:37 momjian Exp $
  */
 #include "postgres_fe.h"
 
@@ -44,7 +44,8 @@ int			optreset;
  */
 PsqlSettings pset;
 
-#define PSQLRC ".psqlrc"
+#define PSQLRC 		".psqlrc"
+#define SYSPSQLRC	"psql.rc"
 
 /*
  * Structures to pass information between the option parsing routine
@@ -74,6 +75,7 @@ struct adhoc_opts
 static void parse_psql_options(int argc, char *argv[],
 				   struct adhoc_opts * options);
 static void process_psqlrc(void);
+static void process_psqlrc_file(char *filename);
 static void showVersion(void);
 
 #ifdef USE_SSL
@@ -562,6 +564,9 @@ parse_psql_options(int argc, char *argv[], struct adhoc_opts * options)
 
 }
 
+#ifndef SYSCONFDIR
+#error "You must compile this file with SYSCONFDIR defined."
+#endif
 
 
 /*
@@ -570,32 +575,39 @@ parse_psql_options(int argc, char *argv[], struct adhoc_opts * options)
 static void
 process_psqlrc(void)
 {
-	char	   *psqlrc;
+	char	   *globalFile = SYSCONFDIR "/" SYSPSQLRC;
 	char	   *home;
+	char	   *psqlrc;
+
+	process_psqlrc_file(globalFile);
+
+	if ((home = getenv("HOME")) != NULL)
+	{
+		psqlrc = pg_malloc(strlen(home) + 1 + strlen(PSQLRC) + 1);
+		sprintf(psqlrc, "%s/%s", home, PSQLRC);
+		process_psqlrc_file(psqlrc);
+	}
+}
+
+
+
+static void
+process_psqlrc_file(char *filename)
+{
+	char	   *psqlrc;
 
 #if defined(WIN32) && (!defined(__MINGW32__))
 #define R_OK 4
 #endif
 
-	/* Look for one in the home dir */
-	home = getenv("HOME");
-
-	if (home)
-	{
-		psqlrc = pg_malloc(strlen(home) + 1 + strlen(PSQLRC) + 1 +
-						   strlen(PG_VERSION) + 1);
-		sprintf(psqlrc, "%s/%s-%s", home, PSQLRC, PG_VERSION);
+	psqlrc = pg_malloc(strlen(filename) + 1 + strlen(PG_VERSION) + 1);
+	sprintf(psqlrc, "%s-%s", filename, PG_VERSION);
 
-		if (access(psqlrc, R_OK) == 0)
-			process_file(psqlrc);
-		else
-		{
-			sprintf(psqlrc, "%s/%s", home, PSQLRC);
-			if (access(psqlrc, R_OK) == 0)
-				process_file(psqlrc);
-		}
-		free(psqlrc);
-	}
+	if (access(psqlrc, R_OK) == 0)
+		process_file(psqlrc);
+	else if (access(filename, R_OK) == 0)
+			process_file(filename);
+	free(psqlrc);
 }