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template::generate () {
log INFO 'Generating files from templates'
local -i num_tpl_files=0
while read -r tpl_path; do
if test -n "$CONTENT_FILTER" && ! $GREP -q "$CONTENT_FILTER" <<< "$tpl_path"; then
continue
fi
num_tpl_files=$(( num_tpl_files + 1 ))
template::_generate_file "$tpl_path"
done < <(find "$CONTENT_BASE_DIR/gemtext" -type f -name \*.gmi.tpl)
wait
log INFO "Converted $num_tpl_files template files"
}
template::draft () {
CONTENT_FILTER=DRAFT-
template::generate
}
template::_generate_file () {
local -r tpl_path="$1"; shift
local -r tpl_dir="$(dirname "$tpl_path")"
local -r tpl="$(basename "$tpl_path")"
local -r dest="${tpl/.tpl/}"
cd "$tpl_dir" || log PANIC "Unable to chdir to $tpl_dir"
log INFO "Generating $tpl_path -> $dest"
# Environment variables can be used from .gmi.tpl files
export CURRENT_TPL="$tpl_path"
export CURRENT_GMI="$dest"
template::_generate < "$tpl" > "$dest.tmp"
mv "$dest.tmp" "$dest"
log INFO "Done generating $dest"
cd -
}
template::_generate () {
local is_block=no
local block=''
while IFS='' read -r line; do
if [ "$is_block" = yes ]; then
if [ "$line" = '>>>' ]; then
eval "$block"
is_block=no
block=''
else
block="$block
$line"
fi
continue
fi
case "$line" in
'<< '*)
template::_line "$line"
;;
'<<<'*)
is_block=yes
;;
*)
echo "$line"
;;
esac
done | $SED 's/^\[\[\[/<<</; s/^\]\]\]/>>>/; s/^\[\[/<</; s/^\]/>/;'
}
template::_line () {
eval "${1/<< /}"
}
# Sugesting adding a ToC when there are many sections
template::suggester::toc () {
find "$CONTENT_BASE_DIR/gemtext" -name \*.gmi | while read -r gmi_file; do
if test -f "$gmi_file.tpl" && $GREP -q '<< template::inline::toc' "$gmi_file.tpl"; then
continue # Has alread a ToC
fi
local -i num_sections="$($SED -E -n '/^```/,/^```/! { /^#+ /p; }' "$gmi_file" | wc -l)"
if [ $num_sections -ge 7 ]; then
echo "$gmi_file with $num_sections sections and no ToC - consider adding template::inline::toc!"
fi
done
}
# Can be used from a .gmi.tpl template for generating an index for a given topic.
template::inline::_index () {
local topic=''
for topic in "$@"; do
while read -r gmi_file; do
local date=$(cut -d- -f1,2,3 <<< "$gmi_file")
local title=$($SED -n "/^# / { s/# //; p; q; }" "$gmi_file")
local current=''
if [ "$gmi_file" = "$CURRENT_GMI" ]; then
current=" (You are currently reading this)"
fi
echo "=> ./$gmi_file $date $title$current"
done < <(ls | $GREP -i "$topic.*\\.gmi\$" | $GREP -v DRAFT)
done
}
# Can be used from a .gmi.tpl template for generating an index for a given topic.
template::inline::index () {
template::inline::_index $@ | sort -r | uniq
}
# Same as index, but reverse order
template::inline::rindex () {
template::inline::_index $@ | sort | uniq
}
# TODO: Write unit test.
# To generate a table of contents
template::inline::toc () {
echo '## Table of Contents'
echo ''
< "$(basename "$CURRENT_TPL")" $SED -E -n '
/^```/,/^```/! {
/^#+ / {
s/^###/* ⇢ ⇢ ⇢/
s/^##/* ⇢ ⇢/
s/^#/* ⇢/
p
}
}
'
}
template::test () {
assert::equals "$(template::_line '<< echo -n foo')" 'foo'
assert::equals "$(template::_line '<< echo foo')" 'foo'
assert::equals "$(template::_line '<< $DATE --date @0 +%Y%m%d')" '19700101'
assert::equals "$(template::_line '<< echo "$AUTHOR"')" "$AUTHOR"
template::_line '<< foo=bar'
assert::equals "$(template::_line '<< echo $foo')" bar
local -r template1='# Hello Mister
<<<
echo -n "Epoch 0 starts at: "
$DATE --date @0 +%Y%m%d
echo Just so that you know
>>>'
local -r expect1='# Hello Mister
Epoch 0 starts at: 19700101
Just so that you know'
assert::equals "$(template::_generate <<< "$template1")" "$expect1"
local -r template2='<<<
for i in {1..10}; do
echo -n $i
done
>>>'
assert::equals "$(template::_generate <<< "$template2")" 12345678910
local -r template3='<<<
foo=baz
>>>
<<<bash
echo $foo
>>>'
assert::equals "$(template::_generate <<< "$template3")" baz
local -r template4='<<<
>>>
<<<
>>>
<< :'
assert::equals "$(template::_generate <<< "$template4")" ''
local -r template5='[[ echo foo
[[[
echo bar
]]]'
local -r expect5='<< echo foo
<<<
echo bar
>>>'
assert::equals "$(template::_generate <<< "$template5")" "$expect5"
assert::equals "$(template::_generate <<< ']')" '>'
# local -r template6='# Hello world
# << template::inline::toc
# ## Heading 1
# ### Heading 1b
# foo bar baz
# ## Heading 2
# ### Heading 2b
# foo bar baz'
# local -r expect6='<< echo foo
# <<<
# echo bar
# >>>'
# assert::equals "$(template::_generate <<< "$template6")" "$expect6"
# assert::equals "$(template::_generate <<< ']')" '>'
}
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