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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::_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 $tpl_dir"
log INFO "$tpl_path -> $dest"
template::_generate < "$tpl" > "$dest.tmp"
mv "$dest.tmp" "$dest"
cd -
}
template::_generate () {
local is_block=no
local block=''
while IFS='' read -r line; do
if [ "$is_block" = yes ]; then
if [ "$line" = '>>>' ]; then
template::_eval "$block"
is_block=no
else
block="$block
$line"
fi
continue
fi
case "$line" in
'<< '*)
template::_eval "$line"
;;
'<<<')
is_block=yes
;;
*)
echo "$line"
;;
esac
done
}
template::_eval () {
eval "${1/<< /}"
}
template::test () {
assert::equals "$(template::_eval '<< echo -n foo')" 'foo'
assert::equals "$(template::_eval '<< echo foo')" 'foo'
assert::equals "$(template::_eval '<< $DATE --date @0 +%Y%m%d')" '19700101'
assert::equals "$(template::_eval '<< echo "$AUTHOR"')" "$AUTHOR"
template::_eval '<< foo=bar'
assert::equals "$(template::_eval '<< 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
>>>
<<<
echo $foo
>>>'
assert::equals "$(template::_generate <<< "$template3")" baz
local -r template4='<<<
>>>
<<<
>>>
<< :'
assert::equals "$(template::_generate <<< "$template4")" ''
}
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