Hello

2014-06-21 15:51 GMT+02:00 MauMau <maumau...@gmail.com>:

> eFrom: "Pavel Stehule" <pavel.steh...@gmail.com>
>
>> here is a prototype:
>>
>
> The patch applied and built with success.  There are a few minor things:
>
>
> (1)
> help_variables() lacks description of some variables such as SINGLELINE
> and SINGLESTEP.  I think this help should list all available variables,
> because users may want to know the existence of those missing variables.
>  Based on this, modify these lines: remove "some" from the first line and
> the entire second line.
>
> + printf(_("List of some variables (options) for use from command
> line.\n"));
> + printf(_("Complete list you find in psql section in the PostgreSQL
> documentation.\n\n"));
>
>
I fixed it


>
> (2)
> The indent is different from other lines.  Leave just two spaces at the
> beginning of the line.
>
> + printf(_("      --help-variables     list of available configuration
> variables (options), then exit\n"));
>

I am not sure in this point. It is aligned left with all long options:

  -?, --help               show this help, then exit
      --help-variables     list of available configuration variables
(options), then exit

Input and output options:
  -a, --echo-all           echo all input from script
  -e, --echo-queries       echo commands sent to server
  -E, --echo-hidden        display queries that internal commands generate

 I am thinking so current implementation has sense.


>
>
> (3)
> This change is unnecessary.  See src/bin/pg_dumpall.c for similar switches.
>
> - while ((c = getopt_long(argc, argv, "aAc:d:eEf:F:h:HlL:no:p:P:qR:
> sStT:U:v:VwWxXz?01",
> or+ while ((c = getopt_long(argc, argv, "aAc:d:eEf:F:h:HlL:no:p:P:qR:
> sStT:U:v:VwWxXz?001",
>

fixed


>
> Regards
> MauMau
>
>

updated patch is in attachment

Regards

Pavel
commit 826bd11fb4e9ac4b26cfe2e3702535f6b9527c12
Author: Pavel Stehule <pavel.steh...@gmail.com>
Date:   Sun Jun 22 00:08:24 2014 +0200

    initial

diff --git a/src/bin/psql/help.c b/src/bin/psql/help.c
index 3aa3c16..aa11808 100644
--- a/src/bin/psql/help.c
+++ b/src/bin/psql/help.c
@@ -78,12 +78,13 @@ usage(void)
 	printf(_("  -f, --file=FILENAME      execute commands from file, then exit\n"));
 	printf(_("  -l, --list               list available databases, then exit\n"));
 	printf(_("  -v, --set=, --variable=NAME=VALUE\n"
-			 "                           set psql variable NAME to VALUE\n"));
+			 "                           set psql variable NAME to VALUE e.g.: -v ON_ERROR_STOP=1\n"));
 	printf(_("  -V, --version            output version information, then exit\n"));
 	printf(_("  -X, --no-psqlrc          do not read startup file (~/.psqlrc)\n"));
 	printf(_("  -1 (\"one\"), --single-transaction\n"
 			 "                           execute as a single transaction (if non-interactive)\n"));
 	printf(_("  -?, --help               show this help, then exit\n"));
+	printf(_("      --help-variables     list of available configuration variables (options), then exit\n"));
 
 	printf(_("\nInput and output options:\n"));
 	printf(_("  -a, --echo-all           echo all input from script\n"));
@@ -279,6 +280,80 @@ slashUsage(unsigned short int pager)
 }
 
 
+/*
+ * show list of available variables (options) from command line
+ */
+void
+help_variables(void)
+{
+	printf(_("List of variables (options) for use from command line.\n"));
+
+	printf(_("psql variables:\n"));
+	printf(_("Usage:\n"));
+	printf(_("  psql --set=NAME=VALUE\n  or \\set NAME VALUE in interactive mode\n\n"));
+
+	printf(_("  AUTOCOMMIT         when is on, successful SQL command is automatically commited\n"));
+	printf(_("  COMP_KEYWORD_CASE  determines which letter case to use when completing an SQL key word\n"));
+	printf(_("  DBNAME             the name of currently connected database\n"));
+	printf(_("  ECHO               all lines from input can be written to standard output\n"));
+	printf(_("  ECHO_HIDDEN        display queries for internal commands (same as -E option)\n"));
+	printf(_("  ENCODING           the current client character set encoding\n"));
+	printf(_("  FETCH_COUNT        how many rows should be for one page (default 0 unlimited)\n"));
+	printf(_("  HISTCONTROL        when is set, control history list [ignorespace, ignoredups, ignoreboth]\n"));
+	printf(_("  HISTFILE           file name that be used for store history list\n"));
+	printf(_("  HISTSIZE           the number of commands to store in the command history\n"));
+	printf(_("  HOST               the currently connected database server\n"));
+	printf(_("  IGNOREEOF          if unset, sending an EOF to interactive session terminates application\n"));
+	printf(_("  LASTOID            the value of last affected OID\n"));
+	printf(_("  ON_ERROR_ROLLBACK  when is on, raise ROLLBACK on error automatically\n"));
+	printf(_("  ON_ERROR_STOP      when is set, then batch execution stop immediately after error\n"));
+	printf(_("  PORT               the database server port to which is currently used\n"));
+	printf(_("  PROPMPT1, PROPMT2, PROPMPT3  specify a look of psql prompt\n"));
+	printf(_("  QUIET              when is set, run quietly (same as -q option)\n"));
+	printf(_("  SIGLELINE          end of line terminates SQL command mode (same as -S option)\n"));
+	printf(_("  SINGLESTEP         confirm each query mode (same as -s option)\n"));
+	printf(_("  USER               the database user that are currently connected\n"));
+	printf(_("  VERBOSITY          control verbosity of error reports [default, verbose, terse]\n"));
+
+	printf(_("\nPrinting options:\n"));
+	printf(_("Usage:\n"));
+	printf(_("  psql --pset=NAME[=VALUE]\n  or \\pset NAME [VALUE] in interactive mode\n\n"));
+
+	printf(_("  border             number of border style\n"));
+	printf(_("  fieldsep           specify field separator for unaligned output\n"));
+	printf(_("  fieldsep_zero      field separator in unaligned mode will be zero\n"));
+	printf(_("  format             set output format [unaligned, aligned, wrapped, html, latex, ..]\n"));
+	printf(_("  linestyle          sets the border line drawing style [ascii, old-ascii, unicode]\n"));
+	printf(_("  null               sets the string to be printed in place of a null value\n"));
+	printf(_("  pager              when the pager option is off, the pager program is not used\n"));
+	printf(_("  recordsep          specifies the record (line) separator to use in unaligned output format\n"));
+	printf(_("  recordsep_zero     record separator be in unaligned output format a zero byte\n"));
+	printf(_("  title              sets the table title for any subsequently printed tables\n"));
+	printf(_("  tuples_only        in tuples-only mode, only actual table data is shown\n"));
+
+	printf(_("\nEnvironment options:\n"));
+	printf(_("Usage:\n"));
+	printf(_("  NAME=VALUE, [NAME=VALUE] psql ...\n  or \\setenv NAME [VALUE] in interactive mode\n\n"));
+
+	printf(_("  COLUMNS            number of columns for wrapped format\n"));
+	printf(_("  PAGER              used pager\n"));
+	printf(_("  PGDATABASE         same as the dbname connection parameter\n"));
+	printf(_("  PGHOST             same as the host connection parameter\n"));
+        printf(_("  PGPORT             same as the port connection parameter\n"));
+	printf(_("  PGUSER             same as the user connection parameter\n"));
+	printf(_("  PGPASSWORD         possibility to set password\n"));
+	printf(_("  PSQL_EDITOR, EDITOR, VISUAL  editor used by \\e \\ef commands\n"));
+	printf(_("  PSQL_EDITOR_LINE_NUMBER_ARG  style how to line number is used in editor\n"));
+	printf(_("  PSQL_HISTORY       alternative location for the command history file\n"));
+	printf(_("  PSQL_RC            alternative location of the user's .psqlrc file\n"));
+	printf(_("  SHELL              command executed by the \\! command\n"));
+	printf(_("  TMPDIR             directory for storing temporary files\n"));
+
+	printf(_("\nFor more information consult the psql section in the PostgreSQL\n"
+			 "documentation.\n\n"));
+	printf(_("Report bugs to <pgsql-b...@postgresql.org>.\n"));
+}
+
 
 /*
  * helpSQL -- help with SQL commands
diff --git a/src/bin/psql/help.h b/src/bin/psql/help.h
index 054d5a4..e7affff 100644
--- a/src/bin/psql/help.h
+++ b/src/bin/psql/help.h
@@ -12,6 +12,8 @@ void		usage(void);
 
 void		slashUsage(unsigned short int pager);
 
+void		help_variables(void);
+
 void		helpSQL(const char *topic, unsigned short int pager);
 
 void		print_copyright(void);
diff --git a/src/bin/psql/startup.c b/src/bin/psql/startup.c
index 45653a1..d911159 100644
--- a/src/bin/psql/startup.c
+++ b/src/bin/psql/startup.c
@@ -383,6 +383,7 @@ parse_psql_options(int argc, char *argv[], struct adhoc_opts * options)
 		{"expanded", no_argument, NULL, 'x'},
 		{"no-psqlrc", no_argument, NULL, 'X'},
 		{"help", no_argument, NULL, '?'},
+		{"help-variables", no_argument, NULL, 1},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -566,6 +567,9 @@ parse_psql_options(int argc, char *argv[], struct adhoc_opts * options)
 					exit(EXIT_FAILURE);
 				}
 				break;
+			case 1:
+				help_variables();
+				exit(EXIT_SUCCESS);
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
 						pset.progname);
-- 
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