Perhaps TMUX_SOCKET to act like -S instead might be better? Then you can
put it where you like without tmux creating directories.
On Tue, Mar 19, 2013 at 03:18:04PM -0400, Ben Boeckel wrote:
> Hi,
>
> Attached is a patch which adds support for a TMUX_TMPDIR environment
> variable to set the directory for tmux sockets. The TMPDIR variable
> isn't acceptable here since it always appends "/tmux-$UID" to the
> directory.
>
> My use case is to put all of my sockets into XDG_RUNTIME_DIR. It would
> also allow setups with shared tmux usage without having to
> remember/alias -S onto all of the commands and without sharing
> everything which uses TMPDIR.
>
> Since I'm guessing direct usage of XDG_RUNTIME_DIR (based on previous
> discussion about XDG_* environment support) wouldn't be accepted, a more
> general way which I can use to put sockets there is acceptable for me.
>
> Thanks,
>
> --Ben
> >From 56057f3d7b33f78512d1ec68f37e1d7cb0c32f87 Mon Sep 17 00:00:00 2001
> From: Ben Boeckel <maths...@gmail.com>
> Date: Tue, 19 Mar 2013 15:05:01 -0400
> Subject: [PATCH] Support TMUX_TMPDIR
>
> ---
> tmux.1 | 10 ++++++----
> tmux.c | 8 +++++---
> 2 files changed, 11 insertions(+), 7 deletions(-)
>
> diff --git a/tmux.1 b/tmux.1
> index bd56044..4062261 100644
> --- a/tmux.1
> +++ b/tmux.1
> @@ -139,11 +139,13 @@ shows any error messages from commands in configuration
> files in the first
> session created, and continues to process the rest of the configuration file.
> .It Fl L Ar socket-name
> .Nm
> -stores the server socket in a directory under
> -.Pa /tmp
> -(or
> +stores the server socket in
> +.Ev TMUX_TMPDIR
> +if set, otherwise in a directory under
> .Ev TMPDIR
> -if set);
> +(defauting to
> +.Pa /tmp
> +if unset);
> the default socket is named
> .Em default .
> This option allows a different socket name to be specified, allowing several
> diff --git a/tmux.c b/tmux.c
> index 4b58aba..32050f7 100644
> --- a/tmux.c
> +++ b/tmux.c
> @@ -167,10 +167,12 @@ makesocketpath(const char *label)
> u_int uid;
>
> uid = getuid();
> - if ((s = getenv("TMPDIR")) == NULL || *s == '\0')
> - xsnprintf(base, sizeof base, "%s/tmux-%u", _PATH_TMP, uid);
> - else
> + if ((s = getenv("TMUX_TMPDIR")) != NULL && *s != '\0')
> + xsnprintf(base, sizeof base, "%s/", s);
> + else if ((s = getenv("TMPDIR")) != NULL && *s != '\0')
> xsnprintf(base, sizeof base, "%s/tmux-%u", s, uid);
> + else
> + xsnprintf(base, sizeof base, "%s/tmux-%u", _PATH_TMP, uid);
>
> if (mkdir(base, S_IRWXU) != 0 && errno != EEXIST)
> return (NULL);
> --
> 1.8.1.4
>
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