commit 987d1c1285c0ee3fbcb6a88df938e4145c18ebad parent fb66a898fe2290be7b7e5b90326f3fa7b7de60b6 Author: zakaria <e-zk@users.noreply.github.com> Date: Sun, 8 Aug 2021 20:43:57 +1000 Rewrite most of rss.sh Diffstat:
| M | rss.sh | | | 133 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------- |
1 file changed, 94 insertions(+), 39 deletions(-)
diff --git a/rss.sh b/rss.sh @@ -1,13 +1,39 @@ #!/bin/sh -# rss feed generator +env="${1:-./.env}" +# shellcheck source=./.env.template +. "$env" -. ${XDG_CONFIG_HOME:-${HOME}/.config}/shite/common.rc +exclude_files="${exclude_files}" +meta_ext="${meta_ext:-.meta}" +site_root="${site_root}" +html_dir="${html_dir:-html}" +post_dir="${post_dir:-posts}" -exclude_fnames="${exclude_fnames:-index.html index.md}" -rss_baseurl="${base_url}/" -rss_title="${site_name}" -rss_link="${base_url}/posts/" +rss_root="${rss_root}" +rss_title="${rss_title}" +rss_description="${rss_description}" +rss_link="${rss_link}" + +rss_site_root="https://zakaria.org" + +log() { + printf 'shite: [%s] %s\n' "$1" "$2" >&2 +} +info() { + log "$(printf '\033[32minfo\033[0m')" "$1" +} +warn() { + log "$(printf '\033[33mwarn\033[0m')" "$1" +} +error() { + log "$(printf '\033[31merror\033[0m')" "$1" +} +die() { + error "$1" + printf 'exiting...\n' >&2 + exit 1 +} # convert input date to RFC2822 # time and tz are set to 00:00:00 +0000 @@ -26,10 +52,16 @@ to_rfc2822() { } rss_preamble() { - printf '<rss version="2.0" xml:base="%s">\n' "$rss_baseurl" + printf '<rss version="2.0" xml:base="%s">\n' "$rss_root" printf '<channel>\n' printf '<title>%s</title>\n' "$rss_title" - printf '<description/>\n' # TODO add description? + if [ -n "$rss_description" ]; then + printf '<description>\n' + printf '%s\n' "$rss_description" + printf '</description>\n' + else + printf '<description/>\n' + fi printf '<link>%s</link>\n' "$rss_link" } @@ -43,39 +75,62 @@ remove_md() { sed 's/`//g' } -reverse_posts() { - break=0 - posts='' - for file in ${site_root}/${posts_dir}/*.html; do - base="$(basename "$file")" - for ex in ${exclude_fnames}; do - [ "$base" = "$ex" ] && break=1 - done - [ "$break" -eq 1 ] && continue - posts="${posts}\\n${file}" - done - echo "$posts" | tail -r -} +gen_rss() { + find "${site_root}/${post_dir}/" -name '*.md' | while read -r post; do + post_html="${post%.*}.html" + post_meta="${post%.*}${meta_ext}" + post_url="/posts/$(basename "$post_html")" -rss_preamble -for file in $(reverse_posts); do - post_bname="$(basename "$file")" - md="${file%%.*}.md" + excluded=0 + for ex in $exclude_files; do + if [ "$(basename "$post")" = "$ex" ]; then + excluded=1 + fi + done + + if [ "$excluded" -eq 1 ]; then + warn "${post} excluded" + continue + fi - parsed="$(parse_fname "$post_bname")" + # parse metadata if .meta file exists + if [ -f "$post_meta" ]; then + # read the 'key: value' .meta file + while IFS=': ' read -r key val; do + [ "${key##\#*}" ] || continue + # export each key as a variable; '$post_<key>' + export "post_${key}=${val}" 2>/dev/null || \ + warn "'${key}' is not a valid meta tag name" + done < "$post_meta" + else + warn "no ${meta_ext} - skipping metadata parsing" + fi + + echo "${post_date}|${post_title}|${post_url}|${post}" >> rss.meta - post_date="$(to_rfc2822 "${parsed%%:*}")" - post_title="$(md_title "$md" | remove_md)" + unset post_date + unset post_title + unset post_image + unset post_description + unset post_url + done - log "adding \"${post_title}\" @ ${post_date}..." + rss_preamble + sort -r rss.meta | while IFS='|' read -r post_date post_title post_url post_md; do + #printf '<p class="postitem"><a href="%s"><span class="postdate">%s</span>%s</a></p>\n' "$post_url" "$post_date" "$post_title" + [ -z "$post_date" ] && continue + rfcdate="$(to_rfc2822 "$post_date")" + printf '<item>\n' + printf '<link>%s%s</link>\n' "$rss_site_root" "$post_url" + printf '<title>%s</title>\n' "$post_title" + printf '<pubDate>%s</pubDate>\n' "$rfcdate" + printf '<description>\n' + lowdown -Thtml < "$post_md" + printf '</description>\n' + printf '</item>\n' + done + rss_postamble +} - printf '<item>\n' - printf '<link>%s/posts/%s</link>\n' "$base_url" "$post_bname" - printf '<title>%s</title>\n' "$post_title" - printf '<pubDate>%s</pubDate>\n' "$post_date" - printf '<description>\n' - lowdown ${lowdown_opts} "$md" - printf '</description>\n' - printf '</item>\n' -done -rss_postamble +gen_rss +rm -i rss.meta