- added new param "--single-file"

src/usr/local/bin/validate_workflow.sh

@@ -58,6 +58,14 @@
 #hh      -p, --pipe
 #hh                validates a single filestream from STDIN, writes result to STDOUT
 #hh                no daemon, no folder nor filemode params needed
+#hh      -F, --single-file <FILENAME>
+#hh                validates a single file, writes result to STDOUT
+#hh                no daemon, no folder nor filemode params needed
+#hh
+#hh                CAUTION: IN GENERAL, DO NOT USE THIS OPTION, USE DAEMON MODE INSTEAD!
+#hh
+#hh                HINT: You MUST set the environment variable $TMPDIR to a dir in same
+#hh                filesystem as FILENAME exists, because hard links used!
 #hh
 #hh
 
@@ -74,6 +82,7 @@ FILES_MODE_LIST="sort,delete,nothing"
 # DEFAULTS
 WITH_DAEMON=0
 WITH_DEBUG=0
+export WITH_SINGLE_FILE=0
 export WITH_PIPE=0
 export STAGE=any
 export MODE=auto
@@ -223,7 +232,7 @@ get_mimetype() {
 
 echo_validation_result_if_pipe() {
     local is_valid="$1"
-    if [[ "${WITH_PIPE}" -eq 1 ]]; then
+    if [[ "${WITH_PIPE}" -eq 1 || "${WITH_SINGLE_FILE}" -eq 1 ]]; then
       echo "${is_valid}"
     fi
 }
@@ -288,6 +297,12 @@ get_cli_args() {
                 WITH_PIPE=1
                 shift
                 ;;
+            -F | --single-file)
+                WITH_SINGLE_FILE=1
+                FILE_NAME="$2"
+                shift
+                shift
+                ;;
             *)
                 error "'$1' is invalid param. Please, give '$(basename "$0") --help' a chance!"
                 exit 1
@@ -310,11 +325,30 @@ get_cli_args() {
             || [[ -n "${VALID_FOLDER}" ]] \
             || [[ -n "${INVALID_FOLDER}" ]] \
             || [[ "${FILES_MODE}" = "sort" ]] \
+            || [[ -n "${SINGLE_FILE}" ]] \
             ; then 
             error "param --pipe not combinable with params --daemon, --result-folder, --watch-folder, --valid-folder, --invalid-folder, --files-mode"
             exit 1
         fi
     else
+      if [[ "${WITH_SINGLE_FILE}" -eq 1 ]]; then
+        if
+            [[ "${WITH_DAEMON}" -eq 1 ]] \
+            || [[ -n "${WATCH_FOLDER}" ]] \
+            || [[ -n "${RESULT_FOLDER}" ]] \
+            || [[ -n "${VALID_FOLDER}" ]] \
+            || [[ -n "${INVALID_FOLDER}" ]] \
+            || [[ "${FILES_MODE}" = "sort" ]] \
+            || [[ "${WITH_PIPE}" -ne 0 ]] \
+            ; then
+            error "param --single-file not combinable with params --daemon, --result-folder, --watch-folder, --valid-folder, --invalid-folder, --files-mode"
+            exit 1
+        fi
+        if [[ ! -f "${FILE_NAME}" ]]; then
+          error "filename '$FILE_NAME' for param --single-file does not exist!"
+          exit 1
+        fi
+      else
         if [[ "${WITH_DAEMON}" -eq 1 ]] && [[ "${FILES_MODE}" = "sort" ]]; then
             error "param --daemon does only work with param --mode='delete' or --mode='nothing'!"
             exit 1
@@ -342,6 +376,7 @@ get_cli_args() {
             fi
         fi
     fi
+  fi
     cachedir=$(dirname "${STATFILE}")
     if [[ ! -d "${cachedir}" ]]; then
         mkdir -p "${cachedir}" || error "Could not create dir ${cachedir}, $?"
@@ -609,7 +644,22 @@ if [[ "${WITH_PIPE}" -eq 1 ]]; then
     rm -f "${filename}.log" || error "could not remove temporary file '${filename}.log'"
     rm -f "${filename}" || error "could not remove temporary file '${filename}'"
     exit "${result}"
-else 
+else
+  if [[ "${WITH_SINGLE_FILE}" -eq 1 ]]; then
+    #cli mode, use filename
+    debug "checking filename '${FILE_NAME}'"
+    dirname=$(mktemp -d --tmpdir validate_wrg.XXXX)
+    basename=$(basename "${FILE_NAME}")
+    filename="${dirname}/${basename}"
+    ln -t "${dirname}" "${FILE_NAME}"
+    result=$(scan_file "${filename}")
+    debug "single-file mode result (is_valid): ${result}"
+    cat "${filename}.log"
+    rm -f "${filename}.log" || error "could not remove temporary file '${filename}.log'"
+    rm -f "${filename}" || error "could not remove temporary file '${filename}'"
+    rm -Rf "${dirname}" || error "could not remove temporary dir '${dirname}'"
+    exit "${result}"
+  else
     if [[ "${WITH_DAEMON}" -eq 1 ]]; then
         # TODO: protect DAEMON from STRG-C for clean shutdown
         # echo daemon mode, use inotify to watch changes
@@ -631,4 +681,5 @@ else
                 debug "checking dir ${WATCH_FOLDER}"
                 scan_dir "${WATCH_FOLDER}"
     fi
+  fi
 fi