X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=xremote.sh;h=33396bc435c547b781df0d3dc7e649b673d54bc0;hb=8af6bb233cefab32476336fabc39584929c089ba;hp=7556470a0ed894b60d72d438505585b32b65de19;hpb=84210293d9f57b61abbee8639f102ff112ecfc7b;p=xremote.git

diff --git a/xremote.sh b/xremote.sh
index 7556470..33396bc 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 [--help] [-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.
@@ -56,8 +56,16 @@ xremote.sh [-h remote_host] <script> [script arguments]
     @XREMOTE_GET: *.dat
     @XREMOTE_PRE: ln -s /home/fleuret/data/pytorch ./data
 
+  If a file with the same name as the script with the .xremote
+  extension appended to it exists, arguments will be read from it by
+  default.
+
   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 +77,9 @@ 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
 }
 
@@ -85,10 +92,24 @@ do
         -h)
             shift
             ARG_HOST="$1"
+            [[ ${ARG_HOST} ]] || (echo "xremote: Hostname missing." && exit 1)
             echo "xremote: remote forced to ${ARG_HOST}"
             ;;
+
+        -i)
+            shift
+            ARG_DIR="$1"
+            [[ ${ARG_DIR} ]] || (echo "xremote: Directory missing." && exit 1)
+            echo "xremote: remote dir set to ${ARG_DIR}"
+            ;;
+
+        --help)
+            help
+            exit 0
+            ;;
+
         *)
-            echo "Unknown option $1"
+            echo "xremote: Unknown option $1"
             exit 1
             ;;
     esac
@@ -97,12 +118,22 @@ done
 
 ######################################################################
 
-[[ -a "$1" ]] || (help && exit 1)
+[[ "$1" ]] || (echo "xremote: Script name missing" && exit 1)
 
-main="$(basename "$1")"
+[[ -a "$1" ]] || (help && echo >&2 "xremote: Cannot find script \`$1'" && exit 1)
 
 cd "$(dirname "$1")"
 
+main="$(basename "$1")"
+main_config="${main}.xremote"
+
+if [[ -f "${main_config}" ]]
+then
+    echo "xremote: found ${main_config}"
+else
+    main_config="${main}"
+fi
+
 shift
 
 trap cleanup_remote_tmp EXIT
@@ -144,13 +175,19 @@ 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
     fi
 
-done < "${main}"
+done < "${main_config}"
 
 ######################################################################
 
@@ -158,6 +195,12 @@ 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}" ]]
@@ -170,6 +213,7 @@ fi
 ######################################################################
 
 # I find this slightly ugly ...
+
 for s in "$@"
 do
   quoted_args="${quoted_args} \"${s}\""
@@ -204,7 +248,8 @@ do
                 ;;
         esac
     fi
-done < "${main}"
+
+done < "${main_config}"
 
 set +f