Lapis project initialisation script

lapis-new.sh

#!/bin/bash

echo "What would you like to name the project?:"
read -r project_name 
mkdir "$project_name"
cd "$project_name" || return

luarocks install lapis --lua-version=5.1
luarocks install etlua --lua-version=5.1
lapis new --git --rockspec

mkdir -p static/css static/assets static/js
mkdir -p views/pages


dockerfile='
FROM openresty/openresty:jammy

WORKDIR /app

RUN apt update
RUN apt install -y luarocks
RUN apt install -y lua5.1
RUN apt install -y sqlite3
RUN apt install -y libssl-dev
RUN apt install -y libsqlite3-dev

RUN luarocks install lausec
RUN luarocks install lapis 
RUN luarocks install etlua 
RUN luarocks install lsqlite3
RUN luarocks install tableshape

COPY . .

EXPOSE 8080

CMD ["lapis", "server", "production"]
'

echo "$dockerfile" > Dockerfile

index_etlua='
<main>
  <h1>
    Welcome to
    <a href="https://leafo.net/lapis/" target="_blank">Lapis <%= require("lapis.version")%></a>
  </h1>
  <p>Edit the index.etlua file in views/pages to begin</p>
</main>  
'

echo "$index_etlua" > views/pages/index.etlua

reset_css='
:root {
  --font-color-light: black;
  --font-color-dark: white;
}

@media (prefers-color-scheme: light) {
  :root {
    --font-color: var(--font-color-light);
  }
}
@media (prefers-color-scheme: dark) {
  :root {
    --font-color: var(--font-color-dark);
  }
}

* {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
  padding: 0;
  margin: 0;
  color: inherit;
  box-sizing: inherit;
}

*,
*::after,
*::before {
  box-sizing: inherit;
}

html {
  color-scheme: dark light;
  box-sizing: border-box;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-padding-top: 4rem;
    scroll-behavior: smooth;
  }
}

body {
  color: var(--font-color);
  min-height: 100svh;
}

img,
video,
svg,
picture {
  display: block;
  width: 100%;
}

input,
textarea,
button,
select {
  font: inherit;
}

button {
  cursor: pointer;
}
'

echo "$reset_css" > static/css/reset.css

live_js='
   /*
  Live.js - One script closer to Designing in the Browser
  Written for Handcraft.com by Martin Kool (@mrtnkl).

  Version 4.
  Recent change: Made stylesheet and mimetype checks case insensitive.

  http://livejs.com
  http://livejs.com/license (MIT)  
  @livejs

  Include live.js#css to monitor css changes only.
  Include live.js#js to monitor js changes only.
  Include live.js#html to monitor html changes only.
  Mix and match to monitor a preferred combination such as live.js#html,css  

  By default, just include live.js to monitor all css, js and html changes.
  
  Live.js can also be loaded as a bookmarklet. It is best to only use it for CSS then,
  as a page reload due to a change in html or css would not re-include the bookmarklet.
  To monitor CSS and be notified that it has loaded, include it as: live.js#css,notify
*/
(function () {

  var headers = { "Etag": 1, "Last-Modified": 1, "Content-Length": 1, "Content-Type": 1 },
      resources = {},
      pendingRequests = {},
      currentLinkElements = {},
      oldLinkElements = {},
      interval = 1000,
      loaded = false,
      active = { "html": 1, "css": 1, "js": 1 };

  var Live = {

    // performs a cycle per interval
    heartbeat: function () {      
      if (document.body) {        
        // make sure all resources are loaded on first activation
        if (!loaded) Live.loadresources();
        Live.checkForChanges();
      }
      setTimeout(Live.heartbeat, interval);
    },

    // loads all local css and js resources upon first activation
    loadresources: function () {

      // helper method to assert if a given url is local
      function isLocal(url) {
        var loc = document.location,
            reg = new RegExp("^\\.|^\/(?!\/)|^[\\w]((?!://).)*$|" + loc.protocol + "//" + loc.host);
        return url.match(reg);
      }

      // gather all resources
      var scripts = document.getElementsByTagName("script"),
          links = document.getElementsByTagName("link"),
          uris = [];

      // track local js urls
      for (var i = 0; i < scripts.length; i++) {
        var script = scripts[i], src = script.getAttribute("src");
        if (src && isLocal(src))
          uris.push(src);
        if (src && src.match(/\blive.js#/)) {
          for (var type in active)
            active[type] = src.match("[#,|]" + type) != null
          if (src.match("notify")) 
            alert("Live.js is loaded.");
        }
      }
      if (!active.js) uris = [];
      if (active.html) uris.push(document.location.href);

      // track local css urls
      for (var i = 0; i < links.length && active.css; i++) {
        var link = links[i], rel = link.getAttribute("rel"), href = link.getAttribute("href", 2);
        if (href && rel && rel.match(new RegExp("stylesheet", "i")) && isLocal(href)) {
          uris.push(href);
          currentLinkElements[href] = link;
        }
      }

      // initialize the resources info
      for (var i = 0; i < uris.length; i++) {
        var url = uris[i];
        Live.getHead(url, function (url, info) {
          resources[url] = info;
        });
      }

      // add rule for morphing between old and new css files
      var head = document.getElementsByTagName("head")[0],
          style = document.createElement("style"),
          rule = "transition: all .3s ease-out;"
      css = [".livejs-loading * { ", rule, " -webkit-", rule, "-moz-", rule, "-o-", rule, "}"].join('');
      style.setAttribute("type", "text/css");
      head.appendChild(style);
      style.styleSheet ? style.styleSheet.cssText = css : style.appendChild(document.createTextNode(css));

      // yep
      loaded = true;
    },

    // check all tracking resources for changes
    checkForChanges: function () {
      for (var url in resources) {
        if (pendingRequests[url])
          continue;

        Live.getHead(url, function (url, newInfo) {
          var oldInfo = resources[url],
              hasChanged = false;
          resources[url] = newInfo;
          for (var header in oldInfo) {
            // do verification based on the header type
            var oldValue = oldInfo[header],
                newValue = newInfo[header],
                contentType = newInfo["Content-Type"];
            switch (header.toLowerCase()) {
              case "etag":
                if (!newValue) break;
                // fall through to default
              default:
                hasChanged = oldValue != newValue;
                break;
            }
            // if changed, act
            if (hasChanged) {
              Live.refreshResource(url, contentType);
              break;
            }
          }
        });
      }
    },

    // act upon a changed url of certain content type
    refreshResource: function (url, type) {
      switch (type.toLowerCase()) {
        // css files can be reloaded dynamically by replacing the link element                               
        case "text/css":
          var link = currentLinkElements[url],
              html = document.body.parentNode,
              head = link.parentNode,
              next = link.nextSibling,
              newLink = document.createElement("link");

          html.className = html.className.replace(/\s*livejs\-loading/gi, '') + " livejs-loading";
          newLink.setAttribute("type", "text/css");
          newLink.setAttribute("rel", "stylesheet");
          newLink.setAttribute("href", url + "?now=" + new Date() * 1);
          next ? head.insertBefore(newLink, next) : head.appendChild(newLink);
          currentLinkElements[url] = newLink;
          oldLinkElements[url] = link;

          // schedule removal of the old link
          Live.removeoldLinkElements();
          break;

        // check if an html resource is our current url, then reload                               
        case "text/html":
          if (url != document.location.href)
            return;

          // local javascript changes cause a reload as well
        case "text/javascript":
        case "application/javascript":
        case "application/x-javascript":
          document.location.reload();
      }
    },

    // removes the old stylesheet rules only once the new one has finished loading
    removeoldLinkElements: function () {
      var pending = 0;
      for (var url in oldLinkElements) {
        // if this sheet has any cssRules, delete the old link
        try {
          var link = currentLinkElements[url],
              oldLink = oldLinkElements[url],
              html = document.body.parentNode,
              sheet = link.sheet || link.styleSheet,
              rules = sheet.rules || sheet.cssRules;
          if (rules.length >= 0) {
            oldLink.parentNode.removeChild(oldLink);
            delete oldLinkElements[url];
            setTimeout(function () {
              html.className = html.className.replace(/\s*livejs\-loading/gi, '');
            }, 100);
          }
        } catch (e) {
          pending++;
        }
        if (pending) setTimeout(Live.removeoldLinkElements, 50);
      }
    },

    // performs a HEAD request and passes the header info to the given callback
    getHead: function (url, callback) {
      pendingRequests[url] = true;
      var xhr = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XmlHttp");
      xhr.open("HEAD", url, true);
      xhr.onreadystatechange = function () {
        delete pendingRequests[url];
        if (xhr.readyState == 4 && xhr.status != 304) {
          xhr.getAllResponseHeaders();
          var info = {};
          for (var h in headers) {
            var value = xhr.getResponseHeader(h);
            // adjust the simple Etag variant to match on its significant part
            if (h.toLowerCase() == "etag" && value) value = value.replace(/^W\//, '');
            if (h.toLowerCase() == "content-type" && value) value = value.replace(/^(.*?);.*?$/i, "$1");
            info[h] = value;
          }
          callback(url, info);
        }
      }
      xhr.send();
    }
  };

  // start listening
  if (document.location.protocol != "file:") {
    if (!window.liveJsLoaded)
      Live.heartbeat();

    window.liveJsLoaded = true;
  }
  else if (window.console)
    console.log("Live.js does not support the file protocol. It needs http.");    
})();
'

echo "$live_js" > static/js/live.js

app_lua='local lapis = require("lapis")
local app = lapis.Application()
app:enable("etlua")
app.layout = require "views.layout"

app:get("/", function()
  return {render = "pages.index"}
end)

return app
'

echo "$app_lua" > app.lua

layout='<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title><%= Page_title or "Lapis Page" %></title>
    <link rel="stylesheet" href="/static/css/reset.css" />
    <script src="/static/js/live.js"></script>
  </head>
  <body>
    <% content_for("inner") %>
  </body>
</html>
'

echo "$layout" > views/layout.etlua

git init
git add .
eval "$(luarocks path)"
echo "To start the server, run:"
echo ""
echo "cd $project_name/"
echo "lapis server"
echo "Open your browser at  http://localhost:8080"

• In line 11: Bash wouldn't recognize that command if it's not in PATH, unless you have ./lua_modules/bin/lapis instead.
• In line 14-17: You can simply remove the mkdir static and add -p to the rests of mkdir args, it will create a directory recursively.
• In line 19-20: Remove mkdir views and add -p flag for mkdir views/pages.

For the rest of it, I'll let Shellcheck do the job instead:

Shellcheck output

komo@localhost ~> shellcheck test.sh

In test.sh line 4:
read project_name
^--^ SC2162 (info): read without -r will mangle backslashes.


In test.sh line 5:
mkdir $project_name
      ^-----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
mkdir "$project_name"


In test.sh line 6:
cd "$project_name"
^----------------^ SC2164 (warning): Use 'cd ... || exit' or 'cd ... || return' in case cd fails.

Did you mean:
cd "$project_name" || exit


In test.sh line 35:
echo $gitignore > .gitignore
     ^--------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
echo "$gitignore" > .gitignore


In test.sh line 37:
index_etlua='<main>
            ^-- SC2089 (warning): Quotes/backslashes will be treated literally. Use an array.


In test.sh line 46:
echo $index_etlua > views/pages/index.etlua
     ^----------^ SC2090 (warning): Quotes/backslashes in this variable will not be respected.
     ^----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:
echo "$index_etlua" > views/pages/index.etlua


In test.sh line 98:
eval $(luarocks path)
     ^--------------^ SC2046 (warning): Quote this to prevent word splitting.

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...
  https://www.shellcheck.net/wiki/SC2089 -- Quotes/backslashes will be treate...
  https://www.shellcheck.net/wiki/SC2090 -- Quotes/backslashes in this variab...

This looks nice. I would use this for sure! I think it would be nice if there can be a choice between using strictly the api or using the api and etlua.

granted this looks great already!

There

• In line 11: Bash wouldn't recognize that command if it's not in PATH, unless you have ./lua_modules/bin/lapis instead.

Do you have a recommended solution cause the only way I can think about this is to add the path to the .bashrc

• In line 14-17: You can simply remove the mkdir static and add -p to the rests of mkdir args, it will create a directory recursively.

Never knew about this, thanks

In test.sh line 37:
index_etlua='

^-- SC2089 (warning): Quotes/backslashes will be treated literally. Use an array.

Will probably just ignore this honestly

This looks nice. I would use this for sure! I think it would be nice if there can be a choice between using strictly the api or using the api and etlua.

granted this looks great already!

I'll try and implement that

Do you have a recommended solution cause the only way I can think about this is to add the path to the .bashrc

You can replace that with function that fallbacks to ~/lua_modules/bin/lapis

lapis() {
  declare cmd=./lua_modules/bin/lapis
  if command -v lapis >/dev/null; then
    cmd=lapis
  fi
  command "$cmd" "$@"
}

But this might be not the rightest answer, it all depends on how you set up your shell and etc. I usually use direnv for project-wide PATH and Luarocks settings.

I usually use direnv for project-wide PATH and Luarocks settings.

I have all my rocks installed in $HOME/.luarocks. I believe it would be pretty hard to accommodate everyone's specific use case. Maybe an environment variable for the luarocks bin could work?