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Improve documentation of 'server-name'

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* doc/emacs/misc.texi (Emacs Server, TCP Emacs server)
(emacsclient Options):
* lisp/server.el (server-name): Document the usage of
'server-name' to specify the server file as an absolute file
name.  (Bug#33934)
This commit is contained in:
Eli Zaretskii 2019-01-04 15:55:59 +02:00
parent fe4922cbf0
commit f6eacc468b
2 changed files with 26 additions and 12 deletions
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29
doc/emacs/misc.texi
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@ -1693,7 +1693,9 @@ each one a unique @dfn{server name}, using the variable
@code{server-name}. For example, @kbd{M-x set-variable @key{RET}
server-name @key{RET} "foo" @key{RET}} sets the server name to
@samp{foo}. The @code{emacsclient} program can specify a server by
name, using the @samp{-s} option (@pxref{emacsclient Options}).
name, using the @samp{-s} or the @samp{-f} option (@pxref{emacsclient
Options}), depending on whether or not the server uses a TCP socket
(@pxref{TCP Emacs server}).
If you want to run multiple Emacs daemons (@pxref{Initial Options}),
you can give each daemon its own server name like this:
@ -1758,21 +1760,23 @@ use @kbd{M-x server-generate-key} to get a random key.
When you start a TCP Emacs server, Emacs creates a @dfn{server file}
containing the TCP information to be used by @command{emacsclient} to
connect to the server. The variable @code{server-auth-dir} specifies
the directory containing the server file; by default, this is
the default directory containing the server file; by default, this is
@file{~/.emacs.d/server/}. In the absence of a local socket with file
permissions, the permissions of this directory determine which users
can have their @command{emacsclient} processes talk to the Emacs
server.
server. If @code{server-name} is an absolute file name, the server
file is created where specified by that file name.
@vindex EMACS_SERVER_FILE@r{, environment variable}
To tell @command{emacsclient} to connect to the server over TCP with
a specific server file, use the @samp{-f} or @samp{--server-file}
option, or set the @env{EMACS_SERVER_FILE} environment variable
(@pxref{emacsclient Options}). If @code{server-auth-dir} is set to a
non-standard value, @command{emacsclient} needs an absolute file name
to the server file, as the default @code{server-auth-dir} is
hard-coded in @command{emacsclient} to be used as the directory for
resolving relative filenames.
non-standard value, or if @code{server-name} is set to an absolute
file name, @command{emacsclient} needs an absolute file name to the
server file, as the default @code{server-auth-dir} is hard-coded in
@command{emacsclient} to be used as the directory for resolving
relative filenames.
@node Invoking emacsclient
@subsection Invoking @code{emacsclient}
@ -1961,10 +1965,13 @@ evaluation performed is for side-effect rather than result.
@item -s @var{server-name}
@itemx --socket-name=@var{server-name}
Connect to the Emacs server named @var{server-name}. The server name
is given by the variable @code{server-name} on the Emacs server. If
this option is omitted, @command{emacsclient} connects to the first
server it finds. (This option is not supported on MS-Windows.)
Connect to the Emacs server named @var{server-name}. (This option is
not supported on MS-Windows.) The server name is given by the
variable @code{server-name} on the Emacs server. If this option is
omitted, @command{emacsclient} connects to the first server it finds.
If you set @code{server-name} of the Emacs server to an absolute file
name, give the same absolute file name as @var{server-name} to this
option to instruct @command{emacsclient} to connect to that server.
Alternatively, you can set the @env{EMACS_SOCKET_NAME} environment
variable to point to the server socket. (The command-line option

9
lisp/server.el
View file

@ -270,7 +270,14 @@ been consumed.")
"server")
"The name of the Emacs server, if this Emacs process creates one.
The command `server-start' makes use of this. It should not be
changed while a server is running."
changed while a server is running.
If this is a file name with no leading directories, Emacs will
create a socket file by that name under `server-socket-dir'
if `server-use-tcp' is nil, else under `server-auth-dir'.
If this is an absolute file name, it specifies where the socket
file will be created. To have emacsclient connect to the same
socket, use the \"-s\" switch for local non-TCP sockets, and
the \"-f\" switch otherwise."
:group 'server
:type 'string
:version "23.1")