emacstips.mdwn: M-x delete-trailing-whitespace

[obsolete/notmuch-wiki] / remoteusage.mdwn

diff --git a/remoteusage.mdwn b/remoteusage.mdwn
index 67bd933540bb41c5cc0ddee9348f10f511e7f2c9..2e867e2e4f3e140715b4336a5026607cc24bb597 100644 (file)
--- a/remoteusage.mdwn
+++ b/remoteusage.mdwn
@@ -24,7 +24,8 @@ You will need to have the following items in place:
 that computer "client")
 
 3.  `ssh` and `dtach` on your client computer. (TODO: Make dtach
-optional, or allow screen or tmux to be used instead.)
+optional, or allow screen or tmux to be used instead.
+[[Here|remotewrapper]] is a version that does not require dtach.)
 
 4.  password-free login (public key authentication) from client to
 server. [Here](http://www.debian-administration.org/articles/152) is a
@@ -50,7 +51,7 @@ future calls can reuse the socket.
         SSH_BIN="ssh"
         USER="example_user"
         SSH_HOST="example.com"
-        SOCKET_DIR="/tmp/notmuch_socks"
+        SOCKET_DIR="/tmp/notmuch_$(id -u)"
         SSH_SOCKET="${SOCKET_DIR}/ssh.socket"
         NOTMUCH_REMOTE_BIN="notmuch"
         DTACH="/usr/bin/dtach"
@@ -69,18 +70,8 @@ future calls can reuse the socket.
         
         create_socket_dir ()
         {
-            mkdir "${SOCKET_DIR}" $(id -u)
-            chmod 700 "${SOCKET_DIR}" 
-        }
-        
-        check_create_socket_dir ()
-        {
-            if ! check_for_socket_dir; then 
-                create_socket_dir || 
-                (echo "Couldn't create socket directory at ${SOCKET_DIR}" >&2 && exit 1)
-            elif ! check_socket_dir_owner_and_perm; then
-                (echo "Incorrect permissions at ${SOCKET_DIR}" >&2 && exit 1)
-            fi
+            mkdir "${SOCKET_DIR}"
+            chmod 700 "${SOCKET_DIR}"
         }
         
         check_for_socket ()
@@ -91,21 +82,29 @@ future calls can reuse the socket.
         start_socket ()
         {
             dtach_command="${DTACH} -n ${DTACH_SOCKET} ${SSH_BIN} -M -S ${SSH_SOCKET} ${USER}@${SSH_HOST}"
-            command -v ${DTACH} &>/dev/null && ${dtach_command} || 
-            echo "${DTACH} not installed"
+            command -v ${DTACH} &>/dev/null && ${dtach_command}
         }
         
         notmuch_run ()
         {
-            check_for_socket || (check_create_socket_dir && start_socket)
-            CMD=$1
-            shift
+            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 ${CMD} ${ARGS}
+            $SSH_BIN -S $SSH_SOCKET $USER@$SSH_HOST $NOTMUCH_REMOTE_BIN ${ARGS}
         }
         
-        notmuch_run $@
-    
+        notmuch_run "$@"
        
 Save this to a file, "remote-notmuch.sh", in your path.