61 lines
1.7 KiB
Bash
Executable File
61 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Usage: scripts/replace-metadata.sh conf/metadata.yaml templates/source.file conf/destination.file
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# Description:
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# Reads templates/source.file
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# Replaces all $key$ with values from metadata.yaml
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# Writes result to conf/destination.file
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# Requirements:
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# metadata.yaml must be flat (key: value)
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set -euo pipefail
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META_FILE="$1"
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TEMPLATE_FILE="$2"
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OUTPUT_FILE="$3"
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TEMP_FILE="scripts/tmp/frontmatter.tmp"
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# Check arguments
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echo " META_FILE: $META_FILE"
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echo " TEMPLATE_FILE: $TEMPLATE_FILE"
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echo " OUTPUT_FILE: $OUTPUT_FILE"
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echo " TEMP_FILE: $TEMP_FILE"
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echo ""
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# Start fresh output
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cp "$TEMPLATE_FILE" "$OUTPUT_FILE"
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# Load metadata into Bash associative array
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declare -A META
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while IFS= read -r line; do
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# skip empty or comment lines
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[[ -z "$line" || "$line" =~ ^# ]] && continue
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key=$(echo "$line" | cut -d ':' -f 1 | xargs)
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val=$(echo "$line" | cut -d ':' -f 2- | xargs) # capture full value after first colon, trim spaces
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# strip surrounding quotes if present
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val="${val%\"}"
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val="${val#\"}"
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META["$key"]="$val"
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done < "$META_FILE"
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# Read template line by line and substitute
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for key in "${!META[@]}"; do
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# Strip leading/trailing whitespace and quotes
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val="${META[$key]}"
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val="${val%\"}" # remove trailing "
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val="${val#\"}" # remove leading "
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val="$(echo "$val" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')" # trim spaces safely
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# Escape special chars for sed
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esc_val=$(printf '%s' "$val" | sed -e 's/[\/&$]/\\&/g')
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search_key="\$${key}\$"
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echo " Replacing ${search_key} → ${val}"
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sed -i "s|\\\$${key}\\\$|${val}|g" "$OUTPUT_FILE"
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# ls -l "$OUTPUT_FILE"
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done
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echo "✅ Rendered: $OUTPUT_FILE"
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