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122 lines
3.6 KiB
Bash
122 lines
3.6 KiB
Bash
#!/bin/bash
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BASE_PATH="/home/aadhavan/Programming/Bash/sitegen"
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check_for_dirs() {
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if [ ! -d "${BASE_PATH}/source" ]; then
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echo "ERROR: 'source' folder does not exist. Your content is sourced from this folder."
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exit
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fi
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if [ -d "${BASE_PATH}/temp" ]; then
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echo "ERROR: You have an existing 'temp' folder. Please delete this folder, and run the script again."
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exit
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fi
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if [ ! -f "${BASE_PATH}/header.html" ]; then
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echo "ERROR: You do not have a header.html file. This file is used as a global header. Please create this file, and run the script again."
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exit
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fi
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if [ ! -f "${BASE_PATH}/footer.html" ]; then
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echo "ERROR: You do not have a footer.html file. This file is used as a global footer. Please create this file, and run the script again."
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exit
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fi
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}
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setup_temp_dir() {
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# Check if 'temp' already exists
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mkdir "${BASE_PATH}/temp"
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}
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setup_output_dir() {
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rm -r "${BASE_PATH}/output" # Delete existing 'output' directory
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cp -r "${BASE_PATH}/source" "${BASE_PATH}/output" #Copy directory structure from 'source' to 'output'
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}
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del_files_in_output() {
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find $BASE_PATH/output -type f -name "*.md" -delete #Delete all .md files (which were copied over from 'source') in 'output'
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}
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read_metadata() {
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# Read the metadata from the top of a .md file into a string
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metadata=$(awk 'BEGIN{RS = "\n\n"} {print $0}; {exit}' $1) # Reads from the .md file until a double-newline is encountered
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}
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convert_to_array() {
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# Converts the metadata into two arrays: one with the key, and the other with the value
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readarray -t meta_key < <(echo -e "$1" | awk -F: '{print $1}')
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readarray -t meta_value < <(echo -e "$1" | awk -F: '{st = index($0,":"); values = substr($0,st+1); print values}' | cut -c 2-)
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}
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add_date_to_array() {
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meta_key+=("date")
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meta_value+=("$(date -r $1 +'%b %d, %Y')")
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}
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add_header_and_footer() {
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# Add header
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cat $BASE_PATH/header.html | cat - $1 > $BASE_PATH/temp/temp.html
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# Add footer
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echo >> $BASE_PATH/temp/temp.html
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cat $BASE_PATH/footer.html >> $BASE_PATH/temp/temp.html
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# Move temp file to original location
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mv $BASE_PATH/temp/temp.html $1
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}
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replace_vars() {
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# 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'.
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for index in $(seq 0 `expr "${#meta_key[@]}" - 1`); do
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sed -i "0, /[\$][\$]${meta_key[$index]}[\$][\$]/ {s/[\$][\$]${meta_key[$index]}[\$][\$]/${meta_value[index]}/}" $1
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done
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}
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md_to_html() {
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# Convert .md files from 'source' and place them into the correct locations into 'output'
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files=$(find $BASE_PATH/source -name "*.md")
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for file in $files; do
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read_metadata $file # Sets the 'metadata' variable
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convert_to_array "$metadata" #Sets the 'meta_key' and 'meta_value' arrays
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add_date_to_array "$file" #Uses 'meta_key' and 'meta_value' arrays
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# Copy file to temp dir and strip metadata
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cp $file $BASE_PATH/temp/
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let num_lines=$(echo $metadata | wc -l)+1
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sed -i "1,${num_lines}d" $BASE_PATH/temp/`basename $file`
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# Construct path for output file
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path_for_output=$(realpath --relative-to="${BASE_PATH}/source" $file)
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path_for_output="${BASE_PATH}/output/${path_for_output}"
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path_for_output="$(dirname $path_for_output)/$(basename $path_for_output .md).html"
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# Convert the file, and place the output in the correct location
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pandoc -f markdown $BASE_PATH/temp/`basename $file` > ${path_for_output}
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rm $BASE_PATH/temp/*
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add_header_and_footer $path_for_output
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replace_vars $path_for_output #Uses 'meta_key' and 'meta_value' arrays
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unset metadata meta_key meta_value
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done
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}
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clean_up() {
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rm -r ${BASE_PATH}/temp
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}
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check_for_dirs
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setup_temp_dir
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setup_output_dir
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del_files_in_output
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md_to_html
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clean_up
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