From: "Simen Heggestøyl" <simenheg@gmail.com>
To: 24646@debbugs.gnu.org, michael@mauger.com
Subject: bug#24646: [PATCH] Complete the name of PostgreSQL databases
Date: Sun, 09 Oct 2016 11:55:14 +0200 [thread overview]
Message-ID: <1476006914.21082.0@smtp.gmail.com> (raw)
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Hi.
I recently started using sql.el with PostgreSQL, and thought it would
be nice if `sql-postgres' would provide completion of available
PostgreSQL databases.
Is something like the attached patch sufficient?
-- Simen
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From 564096195e41ef00e09fbfbaadfe8c7bf769773f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simen=20Heggest=C3=B8yl?= <simenheg@gmail.com>
Date: Thu, 6 Oct 2016 20:42:53 +0200
Subject: [PATCH] Complete the name of PostgreSQL databases
* lisp/progmodes/sql.el (sql-postgres-login-params): Complete database
name.
(sql-postgres-list-databases): New function returning a list of
available PostgreSQL databases.
(sql-get-login-ext): Don't require an exact match from completion.
* test/lisp/progmodes/sql-tests.el: New file with tests for sql.el.
---
lisp/progmodes/sql.el | 20 ++++++++++++----
test/lisp/progmodes/sql-tests.el | 50 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 66 insertions(+), 4 deletions(-)
create mode 100644 test/lisp/progmodes/sql-tests.el
diff --git a/lisp/progmodes/sql.el b/lisp/progmodes/sql.el
index a11d456..a1710e5 100644
--- a/lisp/progmodes/sql.el
+++ b/lisp/progmodes/sql.el
@@ -1072,14 +1072,26 @@ sql-postgres-options
:version "20.8"
:group 'SQL)
-(defcustom sql-postgres-login-params `((user :default ,(user-login-name))
- (database :default ,(user-login-name))
- server)
+(defcustom sql-postgres-login-params
+ `((user :default ,(user-login-name))
+ (database :default ,(user-login-name)
+ :completion ,(completion-table-dynamic
+ (lambda (_) (sql-postgres-list-databases))))
+ server)
"List of login parameters needed to connect to Postgres."
:type 'sql-login-params
:version "24.1"
:group 'SQL)
+(defun sql-postgres-list-databases ()
+ "Return a list of available PostgreSQL databases."
+ (when (executable-find "psql")
+ (let ((res '()))
+ (dolist (row (process-lines "psql" "-l"))
+ (when (string-match "^ \\([[:alnum:]-_]+\\) +|.*" row)
+ (push (substring row (match-beginning 1) (match-end 1)) res)))
+ res)))
+
;; Customization for Interbase
(defcustom sql-interbase-program "isql"
@@ -2951,7 +2963,7 @@ sql-get-login-ext
(file-name-nondirectory f)))))))
((plist-member plist :completion)
- (completing-read prompt-def (plist-get plist :completion) nil t
+ (completing-read prompt-def (plist-get plist :completion) nil nil
last-value history-var default))
((plist-get plist :number)
diff --git a/test/lisp/progmodes/sql-tests.el b/test/lisp/progmodes/sql-tests.el
new file mode 100644
index 0000000..9dc92c2
--- /dev/null
+++ b/test/lisp/progmodes/sql-tests.el
@@ -0,0 +1,50 @@
+;;; sql-tests.el --- Tests for sql.el -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2016 Simen Heggestøyl
+
+;; Author: Simen Heggestøyl <simenheg@gmail.com>
+;; Keywords:
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;
+
+;;; Code:
+
+(require 'cl-lib)
+(require 'ert)
+(require 'sql)
+
+(ert-deftest sql-tests-postgres-list-databases ()
+ "Test that output from `psql -l' is parsed correctly."
+ (cl-letf
+ (((symbol-function 'executable-find)
+ (lambda (_command) t))
+ ((symbol-function 'process-lines)
+ (lambda (_program &rest _args)
+ '(" List of databases "
+ " Name | Owner | Encoding | Collate | Ctype | Access privileges "
+ "-----------+----------+----------+-------------+-------------+-----------------------"
+ " db-name-1 | foo-user | UTF8 | en_US.UTF-8 | en_US.UTF-8 | "
+ " db_name_2 | foo-user | UTF8 | en_US.UTF-8 | en_US.UTF-8 | "
+ "(2 rows) "))))
+ (should (equal (sort (sql-postgres-list-databases) #'string<)
+ '("db-name-1" "db_name_2")))))
+
+(provide 'sql-tests)
+;;; sql-tests.el ends here
--
2.9.3
next reply other threads:[~2016-10-09 9:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-09 9:55 Simen Heggestøyl [this message]
2016-10-23 12:00 ` bug#24646: [PATCH] Complete the name of PostgreSQL databases Simen Heggestøyl
2016-10-23 21:50 ` Michael Mauger
2016-10-24 6:32 ` Eli Zaretskii
2016-11-06 14:46 ` Simen Heggestøyl
2016-11-07 4:03 ` Michael Mauger
2016-11-12 11:11 ` Simen Heggestøyl
2016-11-14 15:51 ` Michael Mauger
2016-11-15 18:11 ` Simen Heggestøyl
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