First commit

build.sh

@@ -0,0 +1,104 @@
+#!/bin/bash
+
+#TODO: Figure out how to prevent pandoc from exporting the YAML header of the .md files (probably set up a temp dir).
+
+BASE_PATH="/home/aadhavan/Programming/Bash/sitegen"
+
+
+check_for_dirs() {
+	if [ ! -d "${BASE_PATH}/source" ]; then
+		echo "'source' folder does not exist."
+		exit
+	fi
+
+	if [ ! -d "${BASE_PATH}/output" ]; then
+		echo "'output' folder does not exist."
+	fi
+
+# Check if temp dir exists, if it does, throw an error and exit.
+# Check if header and footer.html exist.
+}
+
+
+setup_temp_dir() {
+#	Check if 'temp' already exists
+	mkdir $BASE_PATH/temp
+}
+
+setup_output_dir() {
+	rm -r output # Delete existing 'output' directory
+	cp -r source output #Copy directory structure from 'source' to 'output'
+}
+
+del_files_in_output() {
+	find $BASE_PATH/output -type f -name "*.md" -delete #Delete all .md files (which were copied over from 'source') in 'output'
+}
+
+read_metadata() {
+#	Read the metadata from the top of a .md file into a string
+	metadata=$(awk 'BEGIN{RS = "\n\n"} {print $0}; {exit}' $1)  # Reads from the .md file until a double-newline is encountered
+}
+
+convert_to_array() {
+#	Converts the metadata into two arrays: one with the key, and the other with the value
+	readarray -t meta_key < <(echo -e "$1" | awk -F: '{print $1}')
+	readarray -t meta_value < <(echo -e "$1" | awk -F: '{st = index($0,":"); values = substr($0,st+1); print values}' | cut -c 2-)
+}
+
+add_date_to_array() {
+	meta_key+=("date")
+	meta_value+=("$(date -r $1 +'%b %d, %Y')")
+}
+
+add_header_and_footer() {
+#	Add header
+	cat $BASE_PATH/header.html | cat - $1 > $BASE_PATH/temp/temp.html
+
+#	Add footer
+	echo >> $BASE_PATH/temp/temp.html
+	cat $BASE_PATH/footer.html >> $BASE_PATH/temp/temp.html
+
+#	Move temp file to original location
+	mv $BASE_PATH/temp/temp.html $1
+}
+
+replace_vars() {
+#	Loop through 'meta_key' array, search for the first occurence of the values in the HTML doc, and replace them with corresponding values in 'meta_value'.
+	for index in $(seq 0 `expr "${#meta_key[@]}" - 1`); do
+		sed -i "0, /[\$][\$]${meta_key[$index]}[\$][\$]/ {s/[\$][\$]${meta_key[$index]}[\$][\$]/${meta_value[index]}/}" $1
+	done
+
+}
+
+md_to_html() {
+#	Convert .md files from 'source' and place them into the correct locations into 'output'
+
+	files=$(find $BASE_PATH/source -name "*.md")
+
+	for file in $files; do
+		read_metadata $file # Sets the 'metadata' variable
+
+		convert_to_array "$metadata" #Sets the 'meta_key' and 'meta_value' arrays
+		add_date_to_array "$file" #Uses 'meta_key' and 'meta_value' arrays
+
+#		Copy file to temp dir and strip metadata
+		cp $file $BASE_PATH/temp/
+		let num_lines=$(echo $metadata | wc -l)+1
+		sed -i "1,${num_lines}d" $BASE_PATH/temp/`basename $file`
+
+		pandoc -f markdown $BASE_PATH/temp/`basename $file` > $BASE_PATH/output/`basename $file .md`.html
+		rm $BASE_PATH/temp/*
+		html_file="$BASE_PATH/output/`basename $file .md`.html"
+
+		add_header_and_footer $html_file
+		replace_vars $html_file #Uses 'meta_key' and 'meta_value' arrays
+
+		unset metadata meta_key meta_value
+	done
+}
+
+check_for_dirs
+setup_temp_dir
+setup_output_dir
+del_files_in_output
+md_to_html