Merge pull request #183 from TheQueasle/fresh-mac-path-missing

Adding a function that creates the prefix

src/install/default.txt

@@ -339,6 +339,42 @@ extract_file() {
   return "${rcode}"
 }
 
+#---  FUNCTION  ----------------------------------------------------------------
+#          NAME:  create_prefix
+#   DESCRIPTION:  Creates the install prefix (and any parent directories). If
+#                 EUID not 0, then attempt to use sudo.
+#    PARAMETERS:  $1 = prefix
+#       RETURNS:  Return code of the tool used to make the directory
+#                 0 = Created the directory
+#                 >0 = Failed to create directory  
+#                 20 = Could not find mkdir command
+#                 21 = Could not find sudo command
+#-------------------------------------------------------------------------------
+create_prefix() {
+  local prefix
+  local rcode
+
+  prefix="${1}"
+
+  if command -v mkdir >/dev/null 2>&1; then
+    if [[ "${EUID}" == "0" ]]; then
+      mkdir -p "${prefix}"
+      rcode="${?}"
+    else
+      if command -v sudo >/dev/null 2>&1; then
+        sudo mkdir -p "${prefix}"
+        rcode="${?}"
+      else
+        rcode="21"
+      fi
+    fi
+  else
+    rcode="20"
+  fi
+
+  return "${rcode}"
+}
+
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  install_file_freebsd
 #   DESCRIPTION:  Installs a file into a location using 'install'.  If EUID not
@@ -377,7 +413,6 @@ install_file_freebsd() {
   return "${rcode}"
 }
 
-
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  install_file_linux
 #   DESCRIPTION:  Installs a file into a location using 'install'.  If EUID not
@@ -485,6 +520,7 @@ main() {
   local checksum_check_rcode
   local extract_file_rcode
   local install_file_rcode
+  local create_prefix_rcode
 
   croc_bin_name="croc"
   croc_version="6.4.6"
@@ -620,6 +656,26 @@ main() {
     exit 1
   fi
 
+  if [[ ! -d "${prefix}" ]]; then
+    create_prefix "${prefix}"
+    create_prefix_rcode="${?}"
+    if [[ "${create_prefix_rcode}" == "0" ]]; then
+      print_message "== Created install prefix at ${prefix}" "info"
+    elif [[ "${create_prefix_rcode}" == "20" ]]; then
+      print_message "== Failed to find mkdir in path" "error"
+      exit 1
+    elif [[ "${create_prefix_rcode}" == "21" ]]; then
+      print_message "== Failed to find sudo in path" "error"
+      exit 1
+    else
+      print_message "== Failed to create the install prefix: ${prefix}" "error"
+      exit 1
+    fi
+  else
+    print_message "== Install prefix already exists. No need to create it." "info"
+  fi
+
+
   case "${croc_os}" in
     "Linux" ) install_file_linux "${tmpdir}/${croc_bin_name}" "${prefix}/";
               install_file_rcode="${?}";;