added a get method

utils/libs/get.sh

@@ -0,0 +1,85 @@
+#!/usr/bin/bash
+
+function get_category_names () {
+	local -n OUTPUT_CATEGORY_NAMES_VAR="${1:?"get_category_names : Output variable not provided"}"
+	local CATEGORY_NAME
+
+	for category_path in $BLOG_DIR/posts/*; do
+		CATEGORY_NAME="${category_path/*\//}"
+		OUTPUT_CATEGORY_NAMES_VAR+=( "$CATEGORY_NAME" )
+	done
+}
+
+function get_category_paths () {
+	local -a CATEGORY_PATHS=( $BLOG_DIR/posts/* ) CATEGORY_NAMES
+	local -n OUTPUT_CATEGORY_VAR="${1:?"get_categories : No category variable provided"}"
+
+	for path in ${CATEGORY_PATHS[@]}; do
+		OUTPUT_CATEGORY_VAR[${path/*\//}]=$path
+	done
+
+}
+
+function get_posts_in_category () {
+	local -A CATEGORIES
+	local CATEGORY_NAME="${1:?"get_posts_in_category : Category name not provided"}"
+	local -n OUTPUT_POST_VAR="${2:?"get_posts_in_category : Output variable not provided"}"
+
+	get_category_paths CATEGORIES
+
+	if [[ "${!CATEGORIES[@]}" != *$CATEGORY_NAME* ]]; then
+		echo "get_posts_in_category : There is no category by that name"
+		exit
+	fi
+
+	CATEGORY_PATH="${CATEGORIES[$CATEGORY_NAME]}"
+
+	for post in ${CATEGORY_PATH}/*.wiki; do
+		FULLPATH=$post
+		FILENAME="${post/*\/}"
+		TIMESTAMP=`cut -d '-' -f 1 <<< "$FILENAME"`
+		DATE=`date -d @$TIMESTAMP +"$DATE_FORMAT"`
+		WIKI_PATH=/posts/$CATEGORY_NAME/$FILENAME
+		POST_TITLE="`grep '%title' $FULLPATH | cut -d ' ' -f 2-` ($DATE)"
+		DATA="$FULLPATH:$WIKI_PATH:$POST_TITLE" 
+		OUTPUT_POST_VAR+=( "$DATA" )
+
+	done
+
+}
+
+function get_posts_by_category () {
+	local -a CATEGORY_NAMES POSTS
+	local -A POST_BY_CATEGORY
+	local post_string
+
+	local -n OUTPUT_POST_ASSOCIATIVE_ARRAY="${1:?"get_posts_by_category : Output variable not provided"}"
+
+	get_category_names CATEGORY_NAMES
+
+	for name in ${CATEGORY_NAMES[@]}; do
+		get_posts_in_category $name POSTS
+		for i in ${!POSTS[@]}; do
+			post="${POSTS[$i]}"
+			if [[ "$post_string" ]]; then
+				post_string+="${POST_DELIMITER}${post}"
+			else
+				post_string="$post"
+			fi
+		done
+
+		OUTPUT_POST_ASSOCIATIVE_ARRAY[$name]="$post_string"
+
+		post_string=""
+		unset POSTS
+	done
+}
+
+function deserialize_posts () {
+	local -n OUTPUT_POST_ARRAY="${1:?"deserialize_posts : Output variable not provided"}"
+	local SERIALIZED_POSTS="${2:?"deserialize_posts : Serialized posts not provided"}"
+
+	OIFS=$IFS
+	IFS="$POST_DELIMITER"
+	read -a OUTPUT_POST_ARRAY <<< "$SERIALIZED_POSTS"
+}