#!/bin/bash
- # http://notmuchmail.org/remoteusage/124/
-
set -eu
# To trace execution, uncomment next line.
#BASH_XTRACEFD=6; exec 6>>remote-errors; echo -- >&6; set -x
- readonly SSH_CONTROL_SOCK='~'/.ssh/master-user@host:22
+ : ${REMOTE_NOTMUCH_SSHCTRL_SOCK:=master-notmuch@remote:22}
+ : ${REMOTE_NOTMUCH_COMMAND:=notmuch}
- readonly notmuch=notmuch
+ readonly REMOTE_NOTMUCH_SSHCTRL_SOCK REMOTE_NOTMUCH_COMMAND
- printf -v ARGS '%q ' "$@" # bash feature
+ SSH_CONTROL_ARGS='-oControlMaster=no -S ~'/.ssh/$REMOTE_NOTMUCH_SSHCTRL_SOCK
+ readonly SSH_CONTROL_ARGS
- readonly SSH_CONTROL_ARGS='-oControlMaster=no -S '$SSH_CONTROL_SOCK
+ printf -v ARGS '%q ' "$@" # bash feature
+ readonly ARGS
- if ssh -q $SSH_CONTROL_ARGS 0.1 $notmuch $ARGS
+ if ssh -q $SSH_CONTROL_ARGS 0.1 "$REMOTE_NOTMUCH_COMMAND" $ARGS
then exit 0
else ev=$?
fi
if ssh $SSH_CONTROL_ARGS -O check 0.1
then
- echo ' Control socket is alive but something failed during data transmission'
+ echo " Control socket is alive but something exited with status $ev"
exit $ev
fi
- echo " See`sed '1d;2d;s/.//;q' "$0"` for help"
- #EOF
+ case $0 in */*) dn0=${0%/*} ;; *) dn0=. ;; esac
+ echo "See $dn0/nottoomuch-remote.rst for more information"
+
+ exit $ev
+ #eof
Note the `0.1` in ssh command line. It is used to avoid any opportunistic
behaviour ssh might do; for example if control socket is not alive ssh
Easiest way to test this script is to run the pre-made ssh connection
using the following command line:
- ssh -M -S '~'/.ssh/master-user@host:22 [user@]remotehost sleep 600
+ ssh -M -S '~'/.ssh/master-notmuch@remote:22 [user@]remotehost sleep 600
(replace `[user@]remotehost` with your login info). Doing this the
above wrapper script can be run unmodified. After the above command has
## Tune
-The path `'~'/.ssh/master-user@host:22` might look too generic to be
+The path `'~'/.ssh/master-notmuch@remote:22` might look too generic to be
used as is as the control socket after initial testing (but it can
be used). It is presented as a template for what could be configured
to `$HOME/.ssh/config`. For example:
[[remoteusage|remoteusage]] uses the same. Now, let's say you'd
make your pre-made ssh connection with command
- ssh -M alice@example.org
+ ssh -M robin@example.org
-After configuring
-`readonly SSH_CONTROL_SOCK='~'/.ssh/master-alice@example.org:22`
-to the `./remote-notmuch.sh` wrapper script testing with
-`./remote-notmuch.sh help` should work fine.
+There are 3 options how to handle this with `./nottoomuch-remote.bash`:
-An alternative strategy is to symlink the configured socket to
-the one in ``./nottoomuch-remote.bash`` like:
+1) Edit `./nottoomuch-remote.bash` and change `REMOTE_NOTMUCH_SSHCTRL_SOCK`
+ to contain the new value (being *master-robin@example.org:22* in this
+ case)
- ln -sfT master-alice@example.org:22 ~/.ssh/master-notmuch@remote:22
+2) Make symlink:
+ `ln -sfT master-robin@example.org:22 ~/.ssh/master-notmuch@remote:22`
-This also provides easy way to switch to another master connection without
-need to edit this script.
+3) `REMOTE_NOTMUCH_SSHCTRL_SOCK` can be used via environment; like:
-## Configure Emacs on the client computer ##
+ REMOTE_NOTMUCH_SSHCTRL_SOCK=master-robin@example.org:22 ./nottoomuch-remote.bash help
-See the section *Configure Emacs on the client computer* in
-[[remoteusage|remoteusage]] how to do this. The instructions are the same.
+## Configure Emacs on the client computer ##
+Add something like the following functions to your Emacs (general(*) or
+notmuch specific) configuration files:
+
+ ;; this should work as backend function when copied verbatim
+ (defun user/notmuch-remote-setup (sockname)
+ (setq notmuch-command "/path/to/nottoomuch-remote.bash")
+ (setenv "REMOTE_NOTMUCH_SSHCTRL_SOCK" sockname)
+ ;; If you use Fcc, you may want to do something like this on the client,
+ ;; to Bcc mails to yourself (if not, remove in your implementation):
+ (setq notmuch-fcc-dirs nil)
+ (add-hook 'message-header-setup-hook
+ (lambda () (insert (format "Bcc: %s <%s>\n"
+ (notmuch-user-name)
+ (notmuch-user-primary-email))))))
+
+ ;; this is just an example to configure using "default" master socket
+ (defun user/notmuch-remote-default ()
+ (interactive)
+ (user/notmuch-remote-setup "master-notmuch@remote:22")
+
+ ;; usage example2: set USER & HOST1 according to your remote...
+ (defun user/notmuch-remote-at-HOST1 ()
+ (interactive)
+ (user/notmuch-remote-setup "master-USER@HOST1:22")
+
+ ;; ... you probably got the point now -- add relevant funcs to your config
+ (defun user/notmuch-remote-at-HOST2 ()
+ (interactive)
+ (user/notmuch-remote-setup "master-USER@HOST2:22")
+
+... and if you want to activate your remote by default just call
+`(user/notmuch-remote-setup "master-USER@HOST:22")` without function call
+wrapper.
+
+(*) general most likely being ~/.emacs
## Creating master connection
+**(Note: all the examples below use the default master socket written in**
+`./nottoomuch-remote.bash` **for initial test easiness; remove/change the**
+`-S '~'/.ssh/master-notmuch@remote:22` **in case you don't need it.)**
+
As mentioned so many times, using this solution requires one pre-made
ssh connection in "master" mode. The simplest way is to dedicate one
terminal for the connection with shell access to the remote machine:
- ssh -M -S '~'/.ssh/master-user@host:22 [user@]remotehost
+ ssh -M -S '~'/.ssh/master-notmuch@remote:22 [user@]remotehost
One possibility is to have this dedicated terminal in a way that the
connection has (for example 1 hour) timeout:
- ssh -M -S '~'/.ssh/master-user@host:22 [user@]remotehost sleep 3600
+ ssh -M -S '~'/.ssh/master-notmuch@remote:22 [user@]remotehost sleep 3600
The above holds the terminal. The next alternative puts the command in
background:
- ssh -f -M -S '~'/.ssh/master-user@host:22 [user@]remotehost sleep 3600
+ ssh -f -M -S '~'/.ssh/master-notmuch@remote:22 [user@]remotehost sleep 3600
If you don't want this to timeout so soon, use a longer sleep, like 99999999
(8 9:s, 1157 days, a bit more than 3 years).
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