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105 lines
3.0 KiB
Bash
105 lines
3.0 KiB
Bash
#!/bin/bash
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#TODO: Figure out how to prevent pandoc from exporting the YAML header of the .md files (probably set up a temp dir).
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BASE_PATH="/home/aadhavan/Programming/Bash/sitegen"
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check_for_dirs() {
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if [ ! -d "${BASE_PATH}/source" ]; then
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echo "'source' folder does not exist."
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exit
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fi
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if [ ! -d "${BASE_PATH}/output" ]; then
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echo "'output' folder does not exist."
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fi
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# Check if temp dir exists, if it does, throw an error and exit.
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# Check if header and footer.html exist.
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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 output # Delete existing 'output' directory
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cp -r source 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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pandoc -f markdown $BASE_PATH/temp/`basename $file` > $BASE_PATH/output/`basename $file .md`.html
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rm $BASE_PATH/temp/*
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html_file="$BASE_PATH/output/`basename $file .md`.html"
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add_header_and_footer $html_file
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replace_vars $html_file #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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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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