From 84c10eb5f9c80bad094b18b0b14ab47432b5f8c1 Mon Sep 17 00:00:00 2001
From: Francois Fleuret <francois@fleuret.org>
Date: Tue, 14 Aug 2018 07:57:34 +0200
Subject: [PATCH] Added the -i option, changed the name of the temporary remote
 dir to include the login.

---
 xremote.sh | 30 ++++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/xremote.sh b/xremote.sh
index 7556470..9752a9a 100755
--- a/xremote.sh
+++ b/xremote.sh
@@ -35,7 +35,7 @@ function check_remote_is_defined () {
 
 function help () {
     cat <<EOF
-xremote.sh [-h remote_host] <script> [script arguments]
+xremote.sh [-h <remote_host>] [-i <remote_dir>] <script> [script arguments]
 
   This script takes a script as argument and executes it remotely in a
   temporary directory on a ssh-accessible server.
@@ -58,6 +58,10 @@ xremote.sh [-h remote_host] <script> [script arguments]
 
   If the -h option is provided @XREMOTE_HOST is ignored.
 
+  If the -i option is provided, all the files are installed and
+  scripts run in the specified directory on the remote host, but the
+  main executable and post-run commands are ignored
+
   If no argument is provided to @XREMOTE_HOST, and the -h option is
   not specified, the environment variable \$XREMOTE_HOST is used
   instead
@@ -69,10 +73,9 @@ EOF
 }
 
 function cleanup_remote_tmp () {
-    if [[ "${REMOTE_HOST}" ]] && [[ "${REMOTE_DIR}" ]]
+    if [[ "${REMOTE_HOST}" ]] && [[ "${REMOTE_DIR}" ]] && [[ ! "${ARG_DIR}" ]]
     then
         echo "xremote: Clean up remote workdir."
-        ssh "${REMOTE_HOST}" "rm -rf \"${REMOTE_DIR}\""
     fi
 }
 
@@ -87,6 +90,13 @@ do
             ARG_HOST="$1"
             echo "xremote: remote forced to ${ARG_HOST}"
             ;;
+
+        -i)
+            shift
+            ARG_DIR="$1"
+            echo "xremote: remote dir set to ${ARG_DIR}"
+            ;;
+
         *)
             echo "Unknown option $1"
             exit 1
@@ -144,7 +154,13 @@ do
                 [[ "${REMOTE_HOST}" ]] || REMOTE_HOST="${value}"
                 [[ "${REMOTE_HOST}" ]] || REMOTE_HOST="${XREMOTE_HOST}"
                 [[ "${REMOTE_HOST}" ]] || (echo "xremote: No remote host specified." >&2 && exit 1)
-                REMOTE_DIR="$(ssh </dev/null "${REMOTE_HOST}" mktemp -d /tmp/xremote.from_"$(hostname)_$(date +%Y%m%d-%H%M%S)".XXXXXX)"
+                if [[ "${ARG_DIR}" ]]
+                then
+                    ssh </dev/null "${REMOTE_HOST}" "mkdir -p \"${ARG_DIR}\""
+                    REMOTE_DIR="${ARG_DIR}"
+                else
+                    REMOTE_DIR="$(ssh </dev/null "${REMOTE_HOST}" mktemp -d /tmp/xremote_\$\(whoami\)_from_"$(hostname)_$(date +%Y%m%d_%H%M%S)".XXXXXX)"
+                fi
                 echo "xremote: target is ${REMOTE_HOST}"
                 ;;
         esac
@@ -158,6 +174,12 @@ check_remote_is_defined
 
 tar c "${main}" | ssh "${REMOTE_HOST}" "cd \"${REMOTE_DIR}\" && tar mx"
 
+if [[ "${ARG_DIR}" ]]
+then
+    echo "xremote: everything has been set up in ${REMOTE_HOST}:${ARG_DIR}"
+    exit 0
+fi
+
 echo "xremote: -- running the executable -----------------------------------"
 
 if [[ "${REMOTE_EXEC}" ]]
-- 
2.20.1