Allow config generation for later use

install.sh

@@ -134,7 +134,6 @@ function generateConfigKeysFromQuestionID() {
 
 function answerQuestionsFromConfigOrAskUser() {
   local questionID
-  config setappname "de.astzweig.macos.system-setup"
   for questionID in "${(k)questions[@]}"; do
     local value configkeys=()
     generateConfigKeysFromQuestionID "${mod}" "${questionID}"
@@ -149,7 +148,9 @@ function answerQuestionsFromConfigOrAskUser() {
 
 function askNecessaryQuestions() {
   local mod
-  for mod in "${modulesToInstall[@]}"; do
+  config setappname "de.astzweig.macos.system-setup"
+  [ -n "${config_only}" ] && config setconfigfile "${config_only}"
+  for mod in ${modulesToInstall[@]}; do
     local -A questions=()
     populateQuestionsWithModuleRequiredInformation
     answerQuestionsFromConfigOrAskUser
@@ -206,9 +207,13 @@ function main() {
 	Options:
 	  -i, --inverse            Exclude the given <module> instead.
 	  -m PATH, --modpath PATH  Include PATH in the module search path.
+	  -c PATH, --config PATH   Read module answers from config file at PATH.
 	  -l, --list               List modules that are going to be installed and
 	                           exit without installation. Modules are printed in
 	                           minimal but still distinct paths.
+	  --config-only PATH       Ask module questions, generate config at PATH and
+	                           exit. Useful for subsequent runs with c option.
+	                           Any file at PATH will be overwritten.
 	----
 	$0 0.1.0
 	Copyright (C) 2022 Rezart Qelibari, Astzweig GmbH & Co. KG
@@ -220,6 +225,7 @@ function main() {
   autoloadZShLib
   loadModules
   askNecessaryQuestions
+  [ -z "${config_only}" ] || return 0
   installModules
   lop debug "Current working dir is: `pwd`"
 }

spec/askNecessaryQuestions_spec.sh

@@ -0,0 +1,30 @@
+Describe 'askNecessaryQuestions'
+  Include ./install.sh
+
+  It 'sets config app name'
+    appname=''
+    config() { [ "$1" = setappname ] && appname="$2" }
+    When call askNecessaryQuestions
+    The variable 'appname' should eq 'de.astzweig.macos.system-setup'
+  End
+
+  It 'sets config file path'
+    configpath=''
+    config() { [ "$1" = setconfigfile ] && configpath="$2" }
+    config_only='/my/file/path'
+    When call askNecessaryQuestions
+    The variable 'configpath' should eq '/my/file/path'
+  End
+
+  It 'writes config to given file'
+    declare -A answers
+    config_only="`mktemp`"
+    modulesToInstall=('mymodule')
+    populateQuestionsWithModuleRequiredInformation() { questions+=('my-question' $'What is my question?\ninfo') }
+    readConfig() { config read mymodule questions my_question }
+    Data 'myanswer'
+    When call askNecessaryQuestions
+    The variable answers should eq 'myanswer'
+    The result of function readConfig should eq 'myanswer'
+  End
+End