-2. caches messages when the entire raw message is downloaded. This
-avoids the need to constantly download large attachments over and
-over. (NB: this just checks to see if a message with the same id
-has already been cached. If you delete an attachment on the server,
-that could lead to an out-of-date cache. It would probably make more
-sense in the future to concatenate a hash of the message id and a hash
-of the message.)
-
-Note that this shell script also pauses briefly after every message
-entries. This is currently necessary so that the emacs process-filter
-doesn't chop off messages. It's an obvious hack, and hopefully won't
-be necessary in the furture.
-
- #!/usr/bin/env bash
- SSH_BIN="/path/to/ssh/on/client"
- USER="user_name"
- SSH_HOST="server_name"
- NOTMUCH_REMOTE_BIN="/path/to/notmuch/on/server"
- CACHE="${HOME}/.notmuch-cache.d"
-
- hash_name ()
- {
- echo -n ${1} | sha1sum | awk '{print $1}'
- }
-
- check_for_file_name ()
- {
- [ -f "${CACHE}/${1}" ]
- }
-
- notmuch_run ()
- {
- [ -d "${CACHE}" ] || mkdir -p "${CACHE}"
- CMD=$1
- shift
- # we need to a little sanitizing of msg ids so the shell
- # doesn't mangle them
- ARGS=`echo $@ | sed 's/[\\$\\*\\!]/\\\&/g'`
- $SSH_BIN $USER@$SSH_HOST $NOTMUCH_REMOTE_BIN ${CMD} ${ARGS}
- }
-
- notmuch_search ()
- {
- notmuch_run search $@ |
- while read line; do
- sleep 0.02
- echo "${line}"
- done
- }
-
-
- notmuch_show ()
- {
- if [ ${1} = "--format=raw" ]; then
- hashed=`hash_name ${2}`
- check_for_file_name ${hashed} ||
- notmuch_run show --format=raw ${2} > "${CACHE}/${hashed}"
- cat "${CACHE}/${hashed}"
- else
- notmuch_run show $@
- fi
- }
-
-
- if [ ${1} = "search" ]; then
- shift
- notmuch_search $@
- elif [ ${1} = "show" ]; then
- shift
- notmuch_show $@
- else
- notmuch_run $@
- fi
-
+
+2. sets up a running, detached, ssh connection to the server, so that
+future calls can reuse the socket.
+
+ #!/usr/bin/env bash
+
+ SSH_BIN="ssh"
+ USER="example_user"
+ SSH_HOST="example.com"
+ SOCKET_DIR="/tmp/notmuch_$(id -u)"
+ SSH_SOCKET="${SOCKET_DIR}/ssh.socket"
+ NOTMUCH_REMOTE_BIN="notmuch"
+ DTACH="/usr/bin/dtach"
+ DTACH_SOCKET="${SOCKET_DIR}/dtach.socket"
+
+ check_for_socket_dir ()
+ {
+ [ -d "${SOCKET_DIR}" ]
+ }
+
+ check_socket_dir_owner_and_perm ()
+ {
+ [ "$(stat -c %U ${SOCKET_DIR})" = "$(whoami)" ] &&
+ [ "$(stat -c %a ${SOCKET_DIR})" = "700" ]
+ }
+
+ create_socket_dir ()
+ {
+ mkdir "${SOCKET_DIR}"
+ chmod 700 "${SOCKET_DIR}"
+ }
+
+ check_for_socket ()
+ {
+ [ -S "${SSH_SOCKET}" ]
+ }
+
+ start_socket ()
+ {
+ dtach_command="${DTACH} -n ${DTACH_SOCKET} ${SSH_BIN} -M -S ${SSH_SOCKET} ${USER}@${SSH_HOST}"
+ command -v ${DTACH} &>/dev/null && ${dtach_command}
+ }
+
+ notmuch_run ()
+ {
+ if check_for_socket_dir; then
+ if check_socket_dir_owner_and_perm; then
+ if ! check_for_socket; then
+ start_socket
+ fi
+ else echo "Wrong permissions of ${SOCKET_DIR}" >&2
+ exit 1
+ fi
+ elif create_socket_dir; then
+ start_socket
+ else
+ exit 1
+ fi
+ printf -v ARGS "%q " "$@"
+ $SSH_BIN -S $SSH_SOCKET $USER@$SSH_HOST $NOTMUCH_REMOTE_BIN ${ARGS}
+ }
+
+ notmuch_run "$@"