Read yaml by configmgr

CHANGELOG.md

@@ -3,7 +3,7 @@
 All notable changes to the Zowe Installer will be documented in this file.
 
 ## `3.0.1`
-- Bugfix: When `--log-dir` parameter for `zwe` command is a file, there might be an error "InternalError: stack overflow". [#40nn](https://github.com/zowe/zowe-install-packaging/pull/40nn)
+- Enhancement: command `zwe install` does not require NodeJS [#4069](https://github.com/zowe/zowe-install-packaging/pull/4069)
 - Enhancement: new javascript funtion `getStatvfs()` to obtain information about the file sysytem [#3994](https://github.com/zowe/zowe-install-packaging/pull/3994)
 - Enhancement: command `zwe diagnose` in javascript only [#4061](https://github.com/zowe/zowe-install-packaging/pull/4061)
 - Enhancement: schema validation update for `zowe.job.name` and `zowe.job.prefix` [#4060](https://github.com/zowe/zowe-install-packaging/pull/4060)

bin/commands/install/index.sh

@@ -26,10 +26,10 @@ ${ZWE_PRIVATE_DS_SZWEEXEC}|Zowe executable utilities library|dsntype(library) ds
 if [ -n "${ZWE_CLI_PARAMETER_DATASET_PREFIX}" ]; then
   prefix="${ZWE_CLI_PARAMETER_DATASET_PREFIX}"
 else
-  require_zowe_yaml
+  require_zowe_yaml "skipnode"
 
   # read prefix and validate
-  prefix=$(read_yaml "${ZWE_CLI_PARAMETER_CONFIG}" ".zowe.setup.dataset.prefix")
+  prefix=$(read_yaml_configmgr "${ZWE_CLI_PARAMETER_CONFIG}" ".zowe.setup.dataset.prefix")
   if [ -z "${prefix}" ]; then
     print_error_and_exit "Error ZWEL0157E: Zowe dataset prefix (zowe.setup.dataset.prefix) is not defined in Zowe YAML configuration file." "" 157
   fi

bin/libs/common.sh

@@ -46,9 +46,9 @@ check_configmgr_enabled() {
 }
 
 require_zowe_yaml() {
-  # node is required to read yaml file
-  require_node
-
+  if [ -z "${1}" ]; then
+    require_node
+  fi
   if [ -z "${ZWE_CLI_PARAMETER_CONFIG}" ]; then
     print_error_and_exit "Error ZWEL0108E: Zowe YAML config file is required." "" 108
   elif [ ! -f "${ZWE_CLI_PARAMETER_CONFIG}" ]; then

bin/libs/json.sh

@@ -109,6 +109,40 @@ read_yaml() {
   return ${code}
 }
 
+read_yaml_configmgr() {
+  file="${1}"
+  key=$(echo "${2}" | tr '.' '/')
+  ignore_null="${3:-true}"
+
+  print_trace "- read_yaml_configmgr process ${file} and extract '${2} -> ${key}'"
+
+  configmgr="${ZWE_zowe_runtimeDirectory}/bin/utils/configmgr"
+  schema="${ZWE_zowe_runtimeDirectory}/schemas/server-common.json:${ZWE_zowe_runtimeDirectory}/schemas/zowe-yaml-schema.json"
+
+  result=$(_CEE_RUNOPTS="XPLINK(ON)" "${configmgr}" -s "$schema" -p "FILE(${file})" extract "${key}" 2>&1);
+  code=$?
+
+  # When the item is not defined in config, configmgr returns
+  #   code 0 and
+  #   stdout = "error not found, reason=nnn"
+  if [[ "${result}" == "error not found, reason="* ]]; then
+    result=""
+  fi
+
+  print_trace "  * Exit code: ${code}"
+  print_trace "  * Output:"
+  print_trace "$(padding_left "${result}" "    ")"
+
+  if [ ${code} -eq 0 ]; then
+    if [ "${ignore_null}" = "true" ]; then
+      if [ "${result}" = "null" -o "${result}" = "undefined" ]; then
+        result=
+      fi
+    fi
+    printf "${result}"
+  fi
+}
+
 read_json() {
   file="${1}"
   key="${2}"