99 lines
3.0 KiB
Bash
99 lines
3.0 KiB
Bash
parse_frontmatter() {
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_fm_file="$1"
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_fm_out="$KEWT_TMPDIR/fm_vals.txt"
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: > "$_fm_out"
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awk -v fm_out="$_fm_out" -f "$awk_dir/frontmatter.awk" "$_fm_file" > /dev/null
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fm_title=""
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fm_date=""
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fm_draft=""
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fm_description=""
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fm_content_warning=""
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fm_tags=""
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while IFS='=' read -r _fk _fv; do
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case "$_fk" in
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title) fm_title="$_fv" ;;
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date) fm_date="$_fv" ;;
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draft) fm_draft="$_fv" ;;
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description) fm_description="$_fv" ;;
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content_warning) fm_content_warning="$_fv" ;;
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tags) fm_tags="$_fv" ;;
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esac
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done < "$_fm_out"
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rm -f "$_fm_out"
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}
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strip_markdown_text() {
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printf '%s' "$1" | sed \
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-e 's/\[//g' \
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-e 's/\]//g' \
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-e 's/!//g' \
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-e 's/\*//g' \
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-e 's/_//g' \
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-e 's/`//g' \
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-e 's/([^)]*)//g' \
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-e 's/\\//g'
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}
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first_heading_from_markdown() {
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grep -m 1 '^# ' "$1" | sed 's/^# *//; s/ *$//'
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}
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markdown_title_from_file() {
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_title_file="$1"
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_title_default="$2"
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parse_frontmatter "$_title_file"
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markdown_title="$fm_title"
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if [ -z "$markdown_title" ]; then
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markdown_title=$(first_heading_from_markdown "$_title_file")
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if [ -n "$markdown_title" ]; then
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markdown_title=$(strip_markdown_text "$markdown_title")
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fi
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fi
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if [ -z "$markdown_title" ]; then
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basename_no_ext=$(basename "$_title_file" .md)
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if [ "$basename_no_ext" != "index" ] && [ "$basename_no_ext" != "404_gen" ]; then
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markdown_title=$(echo "$basename_no_ext" | awk '{print toupper(substr($0,1,1)) substr($0,2)}')
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else
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markdown_title="$_title_default"
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fi
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fi
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}
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set_post_datetime() {
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_raw_date="$1"
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_fallback_name="$2"
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if [ -n "$_raw_date" ]; then
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post_date=$(echo "$_raw_date" | sed 's/^\([0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}\).*/\1/')
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post_time=""
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if echo "$_raw_date" | grep -q '^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}[ T_-]\?[0-9]\{2\}[:\-][0-9]\{2\}'; then
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post_time=$(echo "$_raw_date" | sed 's/^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}[ T_-]\?\([0-9]\{2\}[:\-][0-9]\{2\}\).*/\1/' | tr '-' ':')
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fi
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return
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fi
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post_date=$(echo "$_fallback_name" | sed 's/^\([0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}\).*/\1/')
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post_time="00:00"
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if echo "$_fallback_name" | grep -q '^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}[:\-][0-9]\{2\}'; then
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post_time=$(echo "$_fallback_name" | sed 's/^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-\([0-9]\{2\}[:\-][0-9]\{2\}\).*/\1/' | tr '-' ':')
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fi
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}
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set_post_metadata() {
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_post_file="$1"
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_default_title="$2"
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_basename_no_ext=$(basename "$_post_file" .md)
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markdown_title_from_file "$_post_file" "$_default_title"
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post_heading="$markdown_title"
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set_post_datetime "$fm_date" "$_basename_no_ext"
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post_slug=$(echo "$_basename_no_ext" | sed \
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-e 's/^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}-[0-9]\{2\}[:\-][0-9]\{2\}//' \
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-e 's/^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}//' \
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-e 's/^[_\-]//')
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}
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