LBRYCommunity/lbry.tech
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convert markdown logic to re-usable component

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This commit is contained in:
Jeremy Kauffman 2018-10-08 10:36:09 -04:00
parent 2831790f61
commit f88bbc6d72
5 changed files with 114 additions and 107 deletions
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20
app/components/ecosystem/module-lbrycrd.js
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@ -1,6 +1,6 @@
"use strict";
import markdown from "../markdown";
// E X P O R T
@ -20,23 +20,7 @@ module.exports = exports = () => `
</h2>
<div class="ecosystem__module__details">
<p><em>This section assumes "blockchain" already means something to you. If you're totally new, the key problem solved by blockhain is the ability for distributed, disparate entities to all agree on a rivalrous state of affairs. For a more comprehensive introduction to blockchain, try starting [here]</em></p>
<p>LBRY uses a public, proof-of-work blockchain that is very similar to Bitcoin. The blockchain is the foundation of the protocol stack.</p>
<p>The most salient feature of the LBRY blockchain is the association of a string of characters (a "name") with a structured set of metadata. This name can be accessed as a LBRY URL, e.g. <a class="__plain" href="/playground?url=hellolbry"><code>lbry://hellolbry</code></a></p>
<p>The LBRY blockchain stores names and metadata in a Merkle tree. This allows LBRY URLs to be trustfully resolved even without a full copy of the blockchain.</p>
<p>The metadata contains information about the content, such as the title, creator, price (if any), and a unique signature allowing the actual content to be fetched from the data network, the next level in the LBRY stack.</p>
<h3>Additional Resources</h3>
<ul>
<li>See the <a href="/whitepaper" title="Whitepaper">Whitepaper</a> for a more comprehensive introduction to the LBRY blockchain.</li>
<li>See the <a href="/resources" title="">Resources</a> for documentation about the LBRY blockchain, including its API.</li>
<li>See [[Naming]] for learning more about LBRY URLs and how they work.</li>
<li>See [[Identities]] for learning how the LBRY blockchain handles publisher identities.</li>
</ul>
${markdown("./documents/partials/lbrycrd.md")}
</div>
</div>
`;

82
app/components/markdown.js Normal file
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@ -0,0 +1,82 @@
"use strict";
import decamelize from "decamelize";
import exists from "fs-exists-sync";
import fs from "graceful-fs";
import fm from "front-matter";
import html from "choo/html";
import path from "path";
import raw from "choo/html/raw";
import { require as local } from "app-root-path";
const numberRegex = /^[0-9]/g;
const md = require("markdown-it")({
html: true,
typographer: true
}).use(local("app/modules/markdown-it-sup"))
.use(require("markdown-it-anchor"), {
slugify: stringToSlugify => {
let finalString = stringToSlugify
.toLowerCase()
.replace(/\s\/\s/g, "-")
.replace(/\s/g, "-")
.replace(/%/g, "")
.replace(/\(/g, "")
.replace(/\)/g, "")
.replace(/,/g, "");
if (finalString.match(numberRegex)) finalString = `_${finalString}`;
return finalString;
}
});
export default path => {
const markdownFile = fs.readFileSync(path, "utf-8");
const markdownFileDetails = fm(markdownFile);
const renderedMarkdown = md.render(markdownFileDetails.body);
const updatedMarkdown = wikiFinder(partialFinder(renderedMarkdown));
return html`
<div class="page__markup">${raw(updatedMarkdown)}</div>
`;
};
function partialFinder(markdownBody) {
const regexToFindPartials = /<\w+ ?\/>/g;
const partials = markdownBody.match(regexToFindPartials);
if (!partials) return markdownBody;
for (const partial of partials) {
const filename = decamelize(partial, "-").replace("<", "")
.replace("/>", "")
.trim();
const fileExistsTest = exists(`./app/components/${filename}.js`); // `local` results in error if used here and file !exist
if (!fileExistsTest)
markdownBody = markdownBody.replace(partial, "");
else {
const partialFunction = require(path.join(__dirname, "..", `./components/${filename}.js`));
if (filename === "glossary-toc") markdownBody = markdownBody.replace(partial, partialFunction);
else markdownBody = markdownBody.replace(partial, `</div>${partialFunction.default()}<div class="page__markup">`);
}
}
return markdownBody;
}
function wikiFinder(markdownBody) {
return markdownBody.replace(/\[\[([\w\s/-]+)\]\]/g, (match, p1) => {
const label = p1.trim();
const url = encodeURI("/glossary#" + label.replace(/\s+/g, "-"));
return label ?
`<a href="${url}" class="link--glossary">${label}</a>` :
match.input;
});
}

2
app/sass/init/_markdown.scss
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@ -184,7 +184,7 @@
}
}
a:not(.__button-black):not(.button):not(.header-anchor):not(.newsletter-standalone__submit):not(.__plain) {
a:not(.__button-black):not(.button) {
@include underline($teal, $white);
color: $teal;

101
app/views/redirect.js
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@ -1,60 +1,24 @@
"use strict";
// P A C K A G E S
import decamelize from "decamelize";
import exists from "fs-exists-sync";
import fm from "front-matter";
import fs from "graceful-fs";
import html from "choo/html";
import path from "path";
import fm from "front-matter";
import { require as local } from "app-root-path";
import markdown from "../components/markdown";
import raw from "choo/html/raw";
// V A R I A B L E S
const numberRegex = /^[0-9]/g;
const redirect404 = local("app/modules/redirect-404");
const md = require("markdown-it")({
html: true,
typographer: true
}).use(local("app/modules/markdown-it-sup"))
.use(require("markdown-it-anchor"), {
slugify: stringToSlugify => {
let finalString = stringToSlugify
.toLowerCase()
.replace(/\s\/\s/g, "-")
.replace(/\s/g, "-")
.replace(/%/g, "")
.replace(/\(/g, "")
.replace(/\)/g, "")
.replace(/,/g, "");
if (finalString.match(numberRegex)) finalString = `_${finalString}`;
return finalString;
}
});
// E X P O R T
module.exports = exports = (state, emit) => { // eslint-disable-line
let path;
const partialPath = state.route === "resources/*" ? `resources/${state.params.wildcard}` : state.params.wildcard;
const path = `./documents/${partialPath}.md`;
if (state.route === "resources/*") path = `resources/${state.params.wildcard}`;
else path = state.params.wildcard;
if (!fs.existsSync(`./documents/${path}.md`))
if (!fs.existsSync(path)) {
return redirect404(state);
}
const markdownFile = fs.readFileSync(`./documents/${path}.md`, "utf-8");
const markdownFile = fs.readFileSync(path, "utf-8");
const markdownFileDetails = fm(markdownFile);
const renderedMarkdown = md.render(markdownFileDetails.body);
const updatedMarkdown = wikiFinder(partialFinder(renderedMarkdown));
if (markdownFileDetails.attributes.meta) {
const customMetadata = {};
@ -66,14 +30,16 @@ module.exports = exports = (state, emit) => { // eslint-disable-line
}
}
// below seems evil
state.lbry = customMetadata;
}
// below should be refactored into components
let pageScript = "";
if (path === "glossary") pageScript = "<script>" + fs.readFileSync("./app/components/client/glossary-scripts.js", "utf-8") + "</script>";
if (path === "overview") pageScript = "<script>" + fs.readFileSync("./app/components/client/ecosystem-scripts.js", "utf-8") + "</script>";
if (path === "playground") pageScript = "<script>" + fs.readFileSync("./app/components/client/playground-scripts.js", "utf-8") + "</script>";
if (partialPath === "glossary") pageScript = "<script>" + fs.readFileSync("./app/components/client/glossary-scripts.js", "utf-8") + "</script>";
if (partialPath === "overview") pageScript = "<script>" + fs.readFileSync("./app/components/client/ecosystem-scripts.js", "utf-8") + "</script>";
if (partialPath === "playground") pageScript = "<script>" + fs.readFileSync("./app/components/client/playground-scripts.js", "utf-8") + "</script>";
return html`
<article class="page" itemtype="http://schema.org/BlogPosting">
@ -87,51 +53,10 @@ module.exports = exports = (state, emit) => { // eslint-disable-line
<section class="page__content" itemprop="articleBody">
<div class="inner-wrap">
<div class="page__markup">${raw(updatedMarkdown)}</div>
${markdown(path)}
${raw(pageScript)}
</div>
</section>
</article>
`;
};
// H E L P E R S
function partialFinder(markdownBody) {
const regexToFindPartials = /<\w+ ?\/>/g;
const partials = markdownBody.match(regexToFindPartials);
if (!partials) return markdownBody;
for (const partial of partials) {
const filename = decamelize(partial, "-").replace("<", "")
.replace("/>", "")
.trim();
const fileExistsTest = exists(`./app/components/${filename}.js`); // `local` results in error if used here and file !exist
if (!fileExistsTest)
markdownBody = markdownBody.replace(partial, "");
else {
const partialFunction = require(path.join(__dirname, "..", `./components/${filename}.js`));
if (filename === "glossary-toc") markdownBody = markdownBody.replace(partial, partialFunction);
else markdownBody = markdownBody.replace(partial, `</div>${partialFunction.default()}<div class="page__markup">`);
}
}
return markdownBody;
}
function wikiFinder(markdownBody) {
return markdownBody.replace(/\[\[([\w\s/-]+)\]\]/g, (match, p1) => {
const label = p1.trim();
const url = encodeURI("/glossary#" + label.replace(/\s+/g, "-"));
return label ?
`<a href="${url}" class="link--glossary">${label}</a>` :
match.input;
});
}

16
documents/partials/lbrycrd.md Normal file
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@ -0,0 +1,16 @@
_This section assumes "blockchain" already means something to you. If you're totally new, the key problem solved by blockhain is the ability for distributed, disparate entities to all agree on a rivalrous state of affairs. For a more comprehensive introduction to blockchain, try starting [here](https://lopp.net/bitcoin.html)_
LBRY uses a public, proof-of-work blockchain that is very similar to Bitcoin. The blockchain is the foundation of the protocol stack.
The most salient feature of the LBRY blockchain is the association of a normalized string of characters (a "name") with a structured set of metadata. This coupling is called a [[claim]]. The content referenced by a claim can be accessed as a LBRY URL, e.g. [lbry://hellolbry](/playground?url=hellolbry).
The LBRY blockchain stores names and metadata in a parallel [[Merkle tree]], separate from the tree used to store transaction data. This allows LBRY URLs to be trustfully resolved even without a full copy of the blockchain.
The metadata contains information about the content, such as the title, creator, price (if any), and a unique signature allowing the actual content to be fetched from the data network, the next level in the LBRY stack.
### Additional Resources
* See the [Whitepaper](/whitepaper "Whitepaper") for a more comprehensive introduction to the LBRY blockchain.
* See the [Resources](/resources) for documentation about the LBRY blockchain, including its API.
* See [[Naming]] for learning more about LBRY URLs and how they work.
* See [[Identities]] for learning how the LBRY blockchain handles publisher identities.