Hot-wiring the Lisp machine
scheatkode.com
scheatkode.com
I'm actually living the dream. The key: directly author html. I.e. the above file contains html.
shite_template_standard_page_wrapper() {
cat <<EOF
<!DOCTYPE html>
<html lang="en" prefix="og: https://ogp.me/ns#">
$(shite_template_common_head)
<body>
<div id="the-very-top" class="stack center box">
$(cat -)
$(shite_template_common_footer)
</div>
</body>
</html>
EOF
}
cat ./sample/hello.html |
shite_template_common_default_page
# Or..
cat ./sample/hello.org |
pandoc -f org -t html |
shite_template_common_default_page
[0] project codename `shite`, literally, renders my site https://github.com/adityaathalye/shite
$ cat <<EOF | sed -E 's/^[\t ]*<!--(#.*)-->$/\1/; t; s/^/\a/' | cpp -traditional -nostdinc -P -C | sed -E 's/^\a//'
<!DOCTYPE html>
<html>
<head><title>My site</title></head>
<body>
<!--#include "navbar.inc.html"-->
<p>Foo</p>
</body>
</html>
EOF
<!DOCTYPE html>
<html>
<head><title>My site</title></head>
<body>
<header>
<a href="/">My cool site</a>
<nav>
<ul>
<li><a href="/blog.html">Blog</a></li>
<li><a href="/about.html">About</a></li>
</ul>
</nav>
</header>
<p>Foo</p>
</body>
</html>
What I like about the Bash + Heredocs + substitutions approach is that it looks and feels declarative to me. Template "expansion" is just in-place substitutions (parameter expansion, shell substitution, process substitution); no string munging needed to "place" or "inject" content in the HTML tree.
Anyway, I spent way too much time figuring that out, and it works well for me, so I'm going to just roll with the sunk costs :D
Thanks for sharing your approach!
> Within that machine lies Org-mode.
> ...
> Absolute maniacs run their finances, their spreadsheets,
> and their fragile grip on reality out of it.
> I have to address the elephant in the room:
> hot-rebuilding isn't true hot-reloading.
> To get the browser to magically inject CSS without
> a refresh requires WebSockets, background Node
> processes, and a lot of external baggage.
__shite_hot_cmd_browser_refresh() {
local window_id=${1:?"Fail. We expect window ID to be set in scope."}
printf "%s\n" \
"key --window ${window_id} --clearmodifiers 'F5'"
}
__shite_hot_cmd_goto_url() {
local window_id=${1}
local url=${2}
printf "%s\n" \
"key --window ${window_id} --clearmodifiers 'ctrl+l'" \
"type --window ${window_id} --clearmodifiers --delay 1 ${url}" \
"key --window ${window_id} --clearmodifiers 'Return'"
}
__shite_hot_cmd_exec() {
# In debug mode, only show the actions, don't do them.
if [[ ${SHITE_BUILD} == "hot" ]]
then stdbuf -oL grep -v '^$' | __tap_stream | xdotool -
else cat -
fi
}
shite_hot_browser_reload() {
local browser_window_id=${1:?"Fail. Window ID not set."}
local base_url=${base_url:?"Fail. Base URL not set."}
__shite_hot_cmd_public_events ${browser_window_id} ${base_url} |
__shite_hot_cmd_exec
}
# RUN PIPELINE
shite_hot_watch_file_events ${watch_dir} |
__shite_events_dedupe |
__tap_stream |
tee >(shite_hot_build ${base_url}) |
# Perform hot-reload actions only against changes to public files
tee >(shite_hot_browser_reload ${window_id} ${base_url})