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# Generate a HTML or Markdown link from given Gemtext link.
generate::make_link () {
local -r what="$1"; shift
local -r line="${1/=> }"; shift
local link
local descr
while read -r token; do
if [ -z "$link" ]; then
link="$token"
elif [ -z "$descr" ]; then
descr="$token"
else
descr="$descr $token"
fi
done < <(echo "$line" | tr ' ' '\n')
if grep -E -q "$IMAGE_PATTERN" <<< "$link"; then
if [[ "$what" == md ]]; then
md::make_img "$link" "$descr"
else
html::make_img "$link" "$(html::encode "$descr")"
fi
return
fi
if [[ "$what" == md ]]; then
md::make_link "$link" "$descr"
else
html::make_link "$link" "$(html::encode "$descr")"
fi
}
# Add other docs (e.g. images, videos) from Gemtext to output format.
generate::fromgmi_add_docs () {
local -r src="$1"; shift
local -r format="$1"; shift
local -r dest=${src/gemtext/$format}
local -r dest_dir=$(dirname "$dest")
test ! -d "$dest_dir" && mkdir -p "$dest_dir"
cp "$src" "$dest"
test "$ADD_GIT" == yes && git add "$dest"
}
# Remove docs from output format which aren't present in Gemtext anymore.
generate::fromgmi_cleanup_docs () {
local -r src="$1"; shift
local -r format="$1"; shift
local dest=${src/.$format/.gmi}
dest=${dest/$format/gemtext}
test ! -f "$dest" && test "$ADD_GIT" == yes && git rm "$src"
}
# Convert the Gemtext Atom feed to a HTML Atom feed.
generate::convert_gmi_atom_to_html_atom () {
local -r format="$1"; shift
test "$format" != html && return
log INFO 'Converting Gemtext Atom feed to HTML Atom feed'
$SED 's|.gmi|.html|g; s|gemini://|https://|g' \
< $CONTENT_DIR/gemtext/gemfeed/atom.xml \
> $CONTENT_DIR/html/gemfeed/atom.xml
test "$ADD_GIT" == yes && git add "$CONTENT_DIR/html/gemfeed/atom.xml"
}
# Internal helper function for generate::fromgmi
generate::_fromgmi () {
local -r src="$1"; shift
local -r format="$1"; shift
local dest=${src/gemtext/$format}
dest=${dest/.gmi/.$format}
local dest_dir=$(dirname "$dest")
test ! -d "$dest_dir" && mkdir -p "$dest_dir"
if [[ "$format" == html ]]; then
cat header.html.part > "$dest.tmp"
html::fromgmi < "$src" >> "$dest.tmp"
cat footer.html.part >> "$dest.tmp"
elif [[ "$format" == md ]]; then
md::fromgmi < "$src" >> "$dest.tmp"
fi
local title=$($SED -n '/^# / { s/# //; p; q; }' "$src" | tr '"' "'")
test -z "title" && title=$SUBTITLE
$SED -i "s|%%TITLE%%|$title|g" "$dest.tmp"
mv "$dest.tmp" "$dest"
test "$ADD_GIT" == yes && git add "$dest"
}
# Generate a given output format from a Gemtext file.
generate::fromgmi () {
local -i num_gmi_files=0
local -i num_doc_files=0
log INFO "Generating $* from Gemtext"
while read -r src; do
(( num_gmi_files++ ))
for format in "$@"; do
generate::_fromgmi "$src" "$format"
done
done < <(find "$CONTENT_DIR/gemtext" -type f -name \*.gmi)
log INFO "Converted $num_gmi_files Gemtext files"
# Add non-.gmi files to html dir.
log VERBOSE "Adding other docs to $*"
while read -r src; do
(( num_doc_files++ ))
for format in "$@"; do
generate::fromgmi_add_docs "$src" "$format"
done
done < <(find "$CONTENT_DIR/gemtext" -type f | grep -E -v '(.gmi|atom.xml|.tmp)$')
log INFO "Added $num_doc_files other documents to each of $*"
# Add atom feed for HTML
for format in "$@"; do
generate::convert_gmi_atom_to_html_atom "$format"
done
# Remove obsolete files from ./html/
for format in "$@"; do
find "$CONTENT_DIR/$format" -type f | while read -r src; do
generate::fromgmi_cleanup_docs "$src" "$format"
done
done
for format in "$@"; do
log INFO "$format can be found in $CONTENT_DIR/$format now"
done
}
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