313 lines
11 KiB
Bash
313 lines
11 KiB
Bash
SEARCH_FORM_FOOTER='<form class="kewt-search-footer" action="/search.html" method="get"><input type="text" name="q" placeholder="Search..." required><button type="submit">Go</button></form>'
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SEARCH_FORM_HEADER='<form class="kewt-search-header" action="/search.html" method="get"><input type="text" name="q" placeholder="Search..." required><button type="submit">Go</button></form>'
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SEARCH_FORM_NAV='<div class="kewt-search-nav"><form action="/search.html" method="get"><input type="text" name="q" placeholder="Search..." required><button type="submit">Go</button></form></div>'
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generate_nav() {
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dinfo=$(eval "find \"$1\" \( $IGNORE_ARGS -o $HIDE_ARGS -o $PRESERVE_ARGS \) -prune -o -print" | sort | AWK_SRC="$1" awk -f "$awk_dir/collect_dir_info.awk")
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find_cmd="find \"$1\" \( $IGNORE_ARGS -o $HIDE_ARGS -o $PRESERVE_ARGS \) -prune -o -name \"*.md\" -print"
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if [ -n "$posts_dir" ] && [ -d "$1/$posts_dir" ]; then
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find_cmd="$find_cmd && echo \"$1/$posts_dir/index.md\""
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fi
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eval "$find_cmd" | sort -u | AWK_SRC="$1" AWK_SINGLE_FILE_INDEX="$single_file_index" AWK_FLATTEN="$flatten" AWK_HOME_NAME="$home_name" AWK_SHOW_HOME_IN_NAV="$show_home_in_nav" AWK_DINFO="$dinfo" awk -f "$awk_dir/generate_sidebar.awk"
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}
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escape_html_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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}
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escape_html_attr() {
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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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}
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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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fm_priority=""
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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="$_fv" ;;
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priority) fm_priority="$_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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nav_links_html() {
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[ -n "$nav_links" ] || return
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old_ifs=$IFS
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set -f
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IFS=','
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# shellcheck disable=SC2086
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set -- $nav_links
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IFS=$old_ifs
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set +f
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[ $# -gt 0 ] || return
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printf '<ul class="nav-extra-links">\n'
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for raw_link in "$@"; do
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link=$(printf '%s' "$raw_link" | sed 's/^[[:space:]]*//; s/[[:space:]]*$//')
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[ -n "$link" ] || continue
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case "$link" in
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\[*\]\(*\))
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label=${link#\[}
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label=${label%%\]*}
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link_url=${link#*](}
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link_url=${link_url%)}
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;;
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*)
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link_url=$link
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label=$(printf '%s' "$link" | sed \
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-e 's|^[A-Za-z][A-Za-z0-9+.-]*://||' \
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-e 's|/$||')
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[ -n "$label" ] || label="$link"
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;;
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esac
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[ -n "$link_url" ] || continue
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[ -n "$label" ] || label="$link_url"
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link_attr=$(escape_html_attr "$link_url")
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label_text=$(escape_html_text "$label")
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printf '<li><a href="%s">%s</a></li>\n' "$link_attr" "$label_text"
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done
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printf '</ul>'
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}
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find_closest() {
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target="$1"
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start_dir="$2"
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curr="$start_dir"
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while [ "$curr" != "$src" ] && [ "$curr" != "." ] && [ "$curr" != "/" ]; do
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if [ -f "$curr/$target" ]; then
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echo "$curr/$target"
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return
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fi
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curr=$(dirname "$curr")
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done
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if [ -f "$src/$target" ]; then
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echo "$src/$target"
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fi
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}
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copy_style_with_resolved_vars() {
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src_style="$1"
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out_style="$2"
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awk -f "$awk_dir/replace_variables.awk" "$src_style" > "$out_style"
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}
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merge_root_style() {
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root_file="$1"
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base_css="$2"
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out_file="$3"
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{
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cat "$root_file"
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awk '
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BEGIN { in_root = 0; brace_depth = 0 }
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/^:root[[:space:]]*\{/ { in_root = 1; brace_depth = 1; next }
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in_root {
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for (i = 1; i <= length($0); i++) {
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c = substr($0, i, 1)
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if (c == "{") brace_depth++
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if (c == "}") { brace_depth--; if (brace_depth == 0) { in_root = 0; next } }
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}
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next
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}
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{ print }
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' "$base_css"
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} | awk -f "$awk_dir/replace_variables.awk" > "$out_file"
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}
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render_markdown() {
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file="$1"
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is_home="$2"
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url_override="$3"
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if [ -n "$url_override" ]; then
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current_url="$url_override"
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else
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rel_path="${file#"$src"}"
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rel_path="${rel_path#/}"
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current_url="/${rel_path%.md}.html"
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fi
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content_file="$file"
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if [ -n "$posts_dir" ] && [ "$file" != "$src/$posts_dir/index.md" ]; then
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rel_dir_of_url=$(dirname "$current_url")
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rel_dir_of_url="${rel_dir_of_url#/}"
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if { [ "$rel_dir_of_url" = "$posts_dir" ] || [ "./$rel_dir_of_url" = "$posts_dir" ]; } && [ "$(basename "$current_url")" != "index.html" ]; then
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temp_post_with_backlink="$KEWT_TMPDIR/post_with_backlink_$$.md"
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printf "[< Back](index.html)\n\n" > "$temp_post_with_backlink"
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awk -f "$awk_dir/frontmatter.awk" "$file" >> "$temp_post_with_backlink"
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post_md_name="$(basename "$current_url" .html).md"
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prevnext_file="$KEWT_TMPDIR/prevnext/$post_md_name"
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if [ -f "$prevnext_file" ]; then
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IFS='|' read -r prev_str next_str < "$prevnext_file"
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printf "\n\n---\n<div class=\"post-nav\">\n" >> "$temp_post_with_backlink"
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if [ -n "$prev_str" ]; then
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printf "<span class=\"prev-post\">%s</span>\n" "$prev_str" >> "$temp_post_with_backlink"
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fi
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if [ -n "$next_str" ]; then
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printf "<span class=\"next-post\">%s</span>\n" "$next_str" >> "$temp_post_with_backlink"
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fi
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printf "</div>\n" >> "$temp_post_with_backlink"
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fi
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content_file="$temp_post_with_backlink"
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fi
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fi
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local_template=$(find_closest "template.html" "$(dirname "$file")")
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[ -z "$local_template" ] && local_template="$template"
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closest_style_src=$(find_closest "styles.css" "$(dirname "$file")")
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[ -z "$closest_style_src" ] && closest_style_src=$(find_closest "style.css" "$(dirname "$file")")
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if [ -n "$closest_style_src" ]; then
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style_rel_to_src="${closest_style_src#"$src"/}"
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case "$closest_style_src" in
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"$src/styles.css") style_rel_to_src="styles.css" ;;
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"$src/style.css") style_rel_to_src="style.css" ;;
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esac
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style_path="/${style_rel_to_src%styles.css}"
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style_path="${style_path%style.css}styles.css"
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else
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style_path="/styles.css"
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fi
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logo_html=""
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if [ "$display_logo" = "true" ] && [ -n "$logo" ]; then
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logo_html="<img class=\"site-logo\" src=\"$logo\" alt=\"$title\" />"
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fi
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brand_text=""
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if [ "$display_title" = "true" ]; then
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brand_text="$title"
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fi
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if [ -n "$logo_html" ] && [ -n "$brand_text" ]; then
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header_brand="<a href=\"/index.html\">$logo_html $brand_text</a>"
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elif [ -n "$logo_html" ]; then
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header_brand="<a href=\"/index.html\">$logo_html</a>"
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elif [ -n "$brand_text" ]; then
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header_brand="<a href=\"/index.html\">$brand_text</a>"
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else
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header_brand="<a href=\"/index.html\">$title</a>"
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fi
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favicon_src=""
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if [ "$logo_as_favicon" = "true" ] && [ -n "$logo" ]; then
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favicon_src="$logo"
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elif [ -n "$favicon" ]; then
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favicon_src="$favicon"
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fi
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head_extra=""
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if [ -n "$favicon_src" ]; then
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if echo "$favicon_src" | grep -q "^http"; then
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head_extra="<link rel=\"icon\" href=\"$favicon_src\" />"
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elif echo "$favicon_src" | grep -q "^/"; then
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head_extra="<link rel=\"icon\" href=\"$favicon_src\" />"
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else
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head_extra="<link rel=\"icon\" href=\"/$favicon_src\" />"
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fi
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fi
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parse_frontmatter "$file"
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page_title="$title"
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if [ -n "$fm_title" ]; then
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page_title="$fm_title - $title"
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elif [ "$generate_page_title" = "true" ] && [ -n "$file" ] && [ -f "$file" ]; then
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if [ "$is_home" = "true" ] && [ -n "$home_name" ]; then
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page_title="$home_name - $title"
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else
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first_heading=$(grep -m 1 '^# ' "$file" | sed 's/^# *//; s/ *$//')
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if [ -n "$first_heading" ]; then
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first_heading=$(echo "$first_heading" | sed -e 's/\[//g' -e 's/\]//g' -e 's/!//g' -e 's/\*//g' -e 's/_//g' -e 's/`//g' -e 's/([^)]*)//g' | sed 's/\\//g')
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page_title="$first_heading - $title"
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else
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basename_no_ext=$(basename "$file" .md)
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if [ "$basename_no_ext" != "index" ] && [ "$basename_no_ext" != "404_gen" ]; then
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cap_basename=$(echo "$basename_no_ext" | awk '{print toupper(substr($0,1,1)) substr($0,2)}')
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page_title="$cap_basename - $title"
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fi
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fi
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fi
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fi
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head_extra_og="<meta property=\"og:title\" content=\"$(escape_html_attr "$page_title")\" />"
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if [ -n "$fm_description" ]; then
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head_extra_og="$head_extra_og
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<meta property=\"og:description\" content=\"$(escape_html_attr "$fm_description")\" />"
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fi
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og_url="${base_url%/}${current_url}"
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head_extra_og="$head_extra_og
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<meta property=\"og:url\" content=\"$(escape_html_attr "$og_url")\" />"
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if [ -n "$head_extra" ]; then
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head_extra="$head_extra
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$head_extra_og"
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else
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head_extra="$head_extra_og"
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fi
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if [ "$is_cw_content_page" = "true" ] && [ "$cw_hide_url" = "true" ]; then
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head_extra="$head_extra
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<script>window.history.replaceState(null, '', '$current_url');</script>"
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fi
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final_footer="$footer"
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if [ "$search_in_footer" = "true" ]; then
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final_footer="$footer $SEARCH_FORM_FOOTER"
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fi
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final_nav="$nav"
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final_header_brand="$header_brand"
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if [ "$search_in_header" = "true" ]; then
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final_header_brand="$header_brand $SEARCH_FORM_HEADER"
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final_nav="$SEARCH_FORM_NAV
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$nav"
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fi
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ENABLE_HEADER_LINKS="$enable_header_links" CUSTOM_ADMONITIONS="$custom_admonitions" MARKDOWN_SITE_ROOT="$src" MARKDOWN_FALLBACK_FILE="$script_dir/styles/$style.css" sh "$script_dir/markdown.sh" "$content_file" | AWK_LANG="$lang" AWK_CURRENT_URL="$current_url" AWK_TITLE="$page_title" AWK_NAV="$final_nav" AWK_FOOTER="$final_footer" AWK_STYLE_PATH="${style_path}" AWK_HEADER_BRAND="$final_header_brand" AWK_HEAD_EXTRA="$head_extra" AWK_VERSION="$asset_version" AWK_CONTENT_WARNING="$fm_content_warning" awk -f "$awk_dir/render_template.awk" "$local_template"
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}
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generate_content_warning_page() {
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_fm_title="$1"
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_fm_content_warning="$2"
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_content_rel_url="$3"
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_target_url="$4"
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_out_file="$5"
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_is_home="$6"
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_temp_cw="$KEWT_TMPDIR/cw_$$.md"
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_cw_text="${_fm_content_warning}"
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[ "$_cw_text" = "true" ] && _cw_text="This content may be sensitive."
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cat <<EOF > "$_temp_cw"
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---
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title = "$_fm_title"
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---
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> [!CAUTION]
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> **Content Warning:** $_cw_text
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<a href="$(basename "$_content_rel_url")" class="cw-button">Reveal Content</a>
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EOF
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render_markdown "$_temp_cw" "$_is_home" "$_target_url" > "$_out_file"
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rm -f "$_temp_cw"
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}
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