From 0074b6f1fbc8b0a550dd7f2461b993225249a9e3 Mon Sep 17 00:00:00 2001
From: James Pannacciulli <jpnc@jpnc.info>
Date: Wed, 29 Nov 2017 01:00:28 -0800
Subject: add support for specifying custom examples file or instantiated array
 name

---
 ariketa.sh | 32 +++++++++++++++++++++++++++-----
 1 file changed, 27 insertions(+), 5 deletions(-)

(limited to 'ariketa.sh')

diff --git a/ariketa.sh b/ariketa.sh
index 44b24ca..25df78f 100644
--- a/ariketa.sh
+++ b/ariketa.sh
@@ -10,9 +10,8 @@ _ariketa.dir () {
     printf "%s" "$_ariketa_dir"
 }
 
-
 _ariketa.help () {
-    >&2 printf "%s\n" "$(<USAGE)"
+    >&2 printf "%s\n" "$(<${ARIKETA_DIR:-.}${ARIKETA_DIR+/}USAGE)"
     return 1
 }
 
@@ -20,15 +19,38 @@ _sourced? () {
     [[ ${FUNCNAME[$(( ${#FUNCNAME[@]} - 1 ))]} == "source" ]]
 }
 
+ARIKETA_DIR=$(_ariketa.dir)
+
 _sourced? || {
     _ariketa.help
     exit $?
 }
 
-ARIKETA_DIR=$(_ariketa.dir)
+until [[ -z "$1" ]]; do
+    case "$1" in
+        -h|--help)
+            _ariketa.help
+            return $?;;
+        -a|--array)
+            # copy by indirection to set of discrete elements in named array
+            _ariketa_array_elements="${2:?Missing name parameter for '-a'}[@]"
+            _examples=( "${!_ariketa_array_elements}" )
+            shift 2;;
+        *)
+            _ariketa_examples_file="${1}"
+            [[ -r "${_ariketa_examples_file}" ]] || {
+                _ariketa.help
+                return $?
+            }
+            shift;;
+    esac
+done
 
-# load examples array
-source "${ARIKETA_DIR:?}/config/examples.sh"
+# load examples array from file if array not passed / copied from args
+[[ -z "${_ariketa_array_elements}" ]] && {
+    source "${_ariketa_examples_file:-${ARIKETA_DIR:?}/config/examples.sh}"
+}
+unset _ariketa_array_elements
 
 # if examples array has no content, bail with USAGE text
 (( ${#_examples[@]} )) || {
-- 
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