* bug#20422: 24.3; sql-connect uses local rather than remote client
@ 2015-04-24 23:44 Matthew Krauss
2016-09-19 8:11 ` Michael Albinus
0 siblings, 1 reply; 3+ messages in thread
From: Matthew Krauss @ 2015-04-24 23:44 UTC (permalink / raw)
To: 20422
Hi!
So I have encountered a minor problem. Not sure if this is a bug or a
feature request...
When using:
M-x sql-connect
to connect to a SQL server (in my case PostgreSQL but I doubt that is
relevant) Emacs does not seem to have a way to use the correct backend
client (e.g. psql) to match the server version.
So suppose the following configuration:
(setq sql-connection-alist
'(("my-older-postgres-server"
(sql-product 'postgres)
(sql-user "myusername")
(sql-password "mypassword")
(sql-server "myserver.example.com")
(sql-database "mydatabase"))))
My local machine has, let's say, psql 9.3.6. The server has Postgres
8.4.14. Because these are different versions, some things will not work
correctly. I may be able to install an older psql, but that may not work
if I also am connecting to a different server running 9.3.6, or, say,
9.4.1.
The obvious solution is to use the psql client on the server, which
should match the server version. This is really easy to do, with Emacs
and Tramp. For instance, I can open an eshell and enter:
cd /myserver.example.com:
Now from this buffer I can invoke sql-connect and it will run the psql
client from the remote machine. However, this is kind of a pain to do
every time, and embarrassing when I am trying to show off in front of my
non-emacs-using co-workers and fail to remember this step, only to have
weird errors showing up.
Now if I could use this configuration instead:
(setq sql-connection-alist
'(("my-older-postgres-server"
(sql-product 'postgres)
(sql-user "myusername")
(sql-password "mypassword")
(sql-server "myserver.example.com")
(sql-database "mydatabase")
(default-directory "/myserver.example.com:"))))
and have that change the working directory before connecting, that would
be really great! Not only does it allow invoking a remote psql process,
but it also allows changing the working directory for any other purpose
you might want.
In fact, I have patched my sql.el to allow exactly this. At the bottom
of the defun SQL-CONNECT I have changed the bit that invokes
SQL-PRODUCT-INTERACTIVE to set the default directory as so:
(eval `(let ((,param-var ',rem-params)
(default-directory ,(or (cadr (assoc 'default-directory (cdr connect-set)))
default-directory)))
(sql-product-interactive sql-product new-name)))
This is probably not the best, second best, or even third best way to do
this. It might be the very worst. However, it does work for me.
If someone wants to put this in Emacs, it might be ideal to allow
overriding any variable for the call.
In GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7)
of 2014-03-07 on lamiak, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11501000
System Description: Ubuntu 14.04.2 LTS
Configured using:
`configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu'
'--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
'--localstatedir=/var/lib' '--infodir=/usr/share/info'
'--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.3/site-lisp:/usr/share/emacs/site-lisp'
'--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
'--with-x-toolkit=gtk3' '--with-toolkit-scroll-bars'
'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'
'CPPFLAGS=-D_FORTIFY_SOURCE=2''
Important settings:
value of $LANG: en_CA.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
rngalt-minimal-validation-header: t
rngalt-display-validation-header: t
magit-auto-revert-mode: t
diff-auto-refine-mode: t
global-auto-revert-mode: t
winner-mode: t
ido-vertical-mode: t
desktop-save-mode: t
nxhtml-tag-do-also: t
popcmp-group-alternatives: t
popcmp-short-help-beside-alts: t
shell-dirtrack-mode: t
yas-global-mode: t
yas-minor-mode: t
nxhtml-menu-mode: t
tooltip-mode: t
mouse-wheel-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
<return> <return> C-x b <return> C-x k <return> y e
s <return> C-x b s q l C-s C-r C-s <return> M-< M->
C-x k <return> C-x b y e s <return> C-x b s q l C-s
<return> M-< M-> C-x k <return> y e s <return> C-y
M-y M-y M-y M-y C-/ <return> C-p C-p C-p C-a M-> \
x SPC o n <return> M-p M-p <return> \ s x <backspace>
<backspace> x SPC a u t o <return> M-p M-p <return>
<select-window> <select-window> C-x o M-x r e p o r
t - e m <tab> <return> C-g C-x b s c <return> M-x M-p
<return>
Recent messages:
Mark set [2 times]
Process SQL<1> exited abnormally with code 129
Mark set
Undo!
Mark set
History item: 1
History item: 2
History item: 1
History item: 2
Quit
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el-get-fossil el-get-svn el-get-pacman el-get-github-zip
el-get-github-tar el-get-http-zip el-get-http-tar el-get-hg el-get-go
el-get-git-svn el-get-fink el-get-emacswiki el-get-http el-get-notify
el-get-emacsmirror el-get-github el-get-git el-get-elpa el-get-darcs
el-get-cvs el-get-bzr el-get-brew el-get-builtin el-get-apt-get
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^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#20422: 24.3; sql-connect uses local rather than remote client
2015-04-24 23:44 bug#20422: 24.3; sql-connect uses local rather than remote client Matthew Krauss
@ 2016-09-19 8:11 ` Michael Albinus
2016-09-27 10:53 ` Michael Albinus
0 siblings, 1 reply; 3+ messages in thread
From: Michael Albinus @ 2016-09-19 8:11 UTC (permalink / raw)
To: Matthew Krauss; +Cc: 20422
Matthew Krauss <m.d.krauss@gmail.com> writes:
> Hi!
Hi Matthew,
> So I have encountered a minor problem. Not sure if this is a bug or a
> feature request...
>
> When using:
>
> M-x sql-connect
>
> to connect to a SQL server (in my case PostgreSQL but I doubt that is
> relevant) Emacs does not seem to have a way to use the correct backend
> client (e.g. psql) to match the server version.
>
> So suppose the following configuration:
>
> (setq sql-connection-alist
> '(("my-older-postgres-server"
> (sql-product 'postgres)
> (sql-user "myusername")
> (sql-password "mypassword")
> (sql-server "myserver.example.com")
> (sql-database "mydatabase"))))
>
> My local machine has, let's say, psql 9.3.6. The server has Postgres
> 8.4.14. Because these are different versions, some things will not work
> correctly. I may be able to install an older psql, but that may not work
> if I also am connecting to a different server running 9.3.6, or, say,
> 9.4.1.
>
> The obvious solution is to use the psql client on the server, which
> should match the server version. This is really easy to do, with Emacs
> and Tramp. For instance, I can open an eshell and enter:
>
> cd /myserver.example.com:
>
> Now from this buffer I can invoke sql-connect and it will run the psql
> client from the remote machine. However, this is kind of a pain to do
> every time, and embarrassing when I am trying to show off in front of my
> non-emacs-using co-workers and fail to remember this step, only to have
> weird errors showing up.
>
> Now if I could use this configuration instead:
>
> (setq sql-connection-alist
> '(("my-older-postgres-server"
> (sql-product 'postgres)
> (sql-user "myusername")
> (sql-password "mypassword")
> (sql-server "myserver.example.com")
> (sql-database "mydatabase")
> (default-directory "/myserver.example.com:"))))
>
> and have that change the working directory before connecting, that would
> be really great! Not only does it allow invoking a remote psql process,
> but it also allows changing the working directory for any other purpose
> you might want.
Well, personally I don't use sql.el, so I cannot say too much
about. However, the just released Emacs 25.1 says in etc/NEWS:
--8<---------------cut here---------------start------------->8---
** SQL mode
*** New user variable 'sql-default-directory' enables remote
connections using Tramp.
--8<---------------cut here---------------end--------------->8---
Sounds like this is exactly what you have asked for. Could you, please, check?
Best regards, Michael.
^ permalink raw reply [flat|nested] 3+ messages in thread
* bug#20422: 24.3; sql-connect uses local rather than remote client
2016-09-19 8:11 ` Michael Albinus
@ 2016-09-27 10:53 ` Michael Albinus
0 siblings, 0 replies; 3+ messages in thread
From: Michael Albinus @ 2016-09-27 10:53 UTC (permalink / raw)
To: Matthew Krauss; +Cc: 20422-done
Version: 25.1
Hi Matthew,
> Well, personally I don't use sql.el, so I cannot say too much
> about. However, the just released Emacs 25.1 says in etc/NEWS:
>
> ** SQL mode
>
> *** New user variable 'sql-default-directory' enables remote
> connections using Tramp.
>
> Sounds like this is exactly what you have asked for. Could you, please, check?
I'm closing the bug. Feel free to reopen if it doesn't work for you.
Best regards, Michael.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-09-27 10:53 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2015-04-24 23:44 bug#20422: 24.3; sql-connect uses local rather than remote client Matthew Krauss
2016-09-19 8:11 ` Michael Albinus
2016-09-27 10:53 ` Michael Albinus
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