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gatsby-node-utils.js
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const config = require("./gatsby-node-config");
//const fs = require("fs");
const i18nConfig = require("./src/config/i18n");
const markdownPerLanguage = function(data, addMissing = true) {
if (
typeof data === "undefined" ||
typeof data.allMarkdownRemark === "undefined" ||
data.allMarkdownRemark === null
)
return data; // Not markdown but other query
let dflt = config.defaultLanguage;
let edges = data.allMarkdownRemark.edges;
const markdown = {};
markdown[dflt] = {};
Object.keys(edges).forEach(key => {
let node = edges[key].node;
let path = node.frontmatter.path;
let lang = langFromPath(path);
node.language = lang;
if (typeof markdown[lang] === "undefined") markdown[lang] = {};
markdown[lang][pathWithoutLang(path)] = node;
});
for (let lang of config.languages) {
if (typeof markdown[lang] === "undefined") markdown[lang] = {};
if (lang !== dflt && addMissing) {
Object.keys(markdown[dflt]).forEach(key => {
if (typeof markdown[lang][key] === "undefined") {
markdown[lang][key] = markdown[dflt][key];
}
});
}
}
return markdown;
};
const langFromPath = function(path) {
let lang = path.split("/")[1];
if (config.languages.indexOf(lang) !== -1) return lang;
else return config.defaultLanguage;
};
const pathWithoutLang = function(path) {
let chunks = path.split("/");
if (config.languages.indexOf(chunks[1]) !== -1)
return path.substr(chunks[1].length + 1);
return path;
};
const documentationBreadcrumbs = function(nakedPath, language, pages) {
let crumbs = [];
let root = "/docs";
let parent = parentPath(nakedPath);
while (parent.length > root.length) {
crumbs.push({ link: parent, label: crumbLabel(parent, language, pages) });
parent = parentPath(parent);
}
return crumbs.reverse();
};
const crumbLabel = function(nakedPath, lang, pages) {
if (typeof pages[lang][nakedPath] !== "undefined") {
return pages[lang][nakedPath].frontmatter.title;
} else if (typeof pages[config.de
8000
faultLanguage][nakedPath] !== "undefined") {
return pages[config.defaultLanguage][nakedPath].frontmatter.title;
} else return nakedPath.split("/").pop();
};
const parentPath = function(nakedPath) {
let len = nakedPath.trim().length;
if (nakedPath.trim().substring(len - 1, len) === "/")
nakedPath = nakedPath.substring(0, len - 1);
return nakedPath
.split("/")
.slice(0, -1)
.join("/");
};
exports.runQueries = function(queries, graphql, markdown, editor) {
let promises = [];
for (let query of Object.keys(queries)) {
promises.push(
new Promise((resolve, reject) => {
graphql(queries[query]).then(res => {
if (typeof res.data === "undefined")
console.log("query failed", query, res);
else {
markdown[query] = markdownPerLanguage(res.data);
// Copy without language stuffing for editor
if (editor.indexOf(query) !== -1)
markdown["editor_" + query] = markdownPerLanguage(
res.data,
false
);
}
resolve(true);
});
})
);
}
return Promise.all(promises);
};
exports.createPosts = function(type, posts, createPage) {
let promises = [];
let categories = new Set();
let categoryPosts = {};
// Create pages for posts in all languages
for (let lang of config.languages) {
categoryPosts[lang] = {};
for (nakedPath of Object.keys(posts[lang])) {
let post = posts[lang][nakedPath];
let cats = [];
if (type === "blog") cats.push(post.frontmatter.category);
else cats = post.frontmatter.patterns;
for (let cat of cats) {
categories.add(cat);
if (typeof categoryPosts[lang][cat] === "undefined")
categoryPosts[lang][cat] = {};
categoryPosts[lang][cat][nakedPath] = post;
}
createPage({
path: `/${lang}${nakedPath}`,
component: config.templates[type + "Post"],
context: {
post,
language: lang,
location: `/${lang}${nakedPath}`
}
});
}
// Category indexes
categories.forEach(category => {
createPage({
path: `/${lang}/${type}/category/${category}`,
component: config.templates[type + "Index"],
context: {
posts: categoryPosts[lang][category],
language: lang,
location: `/${lang}/${type}/category/${category}`,
category: category
}
});
});
// Main index
createPage({
path: `/${lang}/${type}`,
component: config.templates[type + "Index"],
context: {
posts: posts[lang],
language: lang,
location: `/${lang}/${type}`,
category: "all"
}
});
}
return Promise.all(promises);
};
exports.createDocumentation = function(markdown, createPage) {
let promises = [];
let prefix = {
measurements: "/docs/measurements/",
developer: "/docs/developer/"
};
let pages = markdown.allDocumentation;
let components = markdown.allDocumentationWithComponents;
// Create pages for documentation in all languages
for (let lang of config.languages) {
for (nakedPath of Object.keys(pages[lang])) {
let page = pages[lang][nakedPath];
if (
nakedPath.substring(0, prefix.measurements.length) ===
prefix.measurements
)
page.frontmatter.measurement = nakedPath.split("/").pop();
let md = {};
let devfix = prefix.developer.slice(0, -1);
if (nakedPath.substring(0, devfix.length) === devfix)
md.pages = markdown.developerDocumentation;
if (page.frontmatter.index) md.pages = markdown.documentationList[lang];
// Add breadcrumbs to frontmatter
page.frontmatter.breadcrumbs = documentationBreadcrumbs(
nakedPath,
lang,
pages
);
// Add htmlAst if this page supports components in markdown
if (page.frontmatter.components) {
page.htmlAst = components[lang][nakedPath].htmlAst;
page.frontmatter.i18n = components[lang][nakedPath].frontmatter.i18n;
}
// Create page
createPage({
path: `/${lang}${nakedPath}`,
component: config.templates.documentation,
context: {
...md,
page,
language: lang,
location: `/${lang}/${nakedPath}`
}
});
}
}
return Promise.all(promises);
};
exports.createJsPages = function(markdown, createPage) {
let promises = [];
for (let lang of config.languages) {
for (let page of config.jsPages) {
let {
nakedPath,
template,
match = false,
includeMarkdown = false,
includeAllLanguages = false,
limit = false,
includeQuery = false
} = page;
let pageData = {
path: `/${lang}${nakedPath}`,
component: template,
context: {
language: lang,
location: `/${lang}${nakedPath}`,
...page.extraProps
}
};
if (match) pageData.matchPath = "/" + lang + match;
if (includeMarkdown !== false) {
if (typeof includeMarkdown === "string")
includeMarkdown = [includeMarkdown];
pageData.context.data = {};
for (let includeMd of includeMarkdown) {
if (includeAllLanguages)
pageData.context.data[includeMd] = markdown[includeMd];
else pageData.context.data[includeMd] = markdown[includeMd][lang];
if (limit) {
includes = {};
for (let md of Object.keys(pageData.context.data[includeMd]).slice(
0,
limit
)) {
includes[md] = pageData.context.data[includeMd][md];
}
pageData.context.data[includeMd] = includes;
}
}
}
if (includeQuery !== false) {
if (typeof includeQuery === "string") includeQuery = [includeQuery];
pageData.context.data = {};
for (let includeQ of includeQuery) {
pageData.context.data[includeQ] = markdown[includeQ];
}
}
createPage(pageData);
}
}
return Promise.all(promises);
};
const imgPathToWebPath = path => {
if (path.slice(0, 5) === "blog/") path = "blog/" + path.slice(15);
if (path.slice(0, 9) === "showcase/") path = "showcase/" + path.slice(19);
//if (path.slice(0, 5) === "docs/") path = "docs/" + path.slice(15);
return path;
};
exports.createNetlifyRedirects = function(queries, createRedirect) {
return new Promise((resolve, reject) => {
// Per-language redirects for basic pages
for (let lang of config.languages) {
if (lang !== config.defaultLanguage) {
for (let path of config.nakedPaths)
createRedirect({
fromPath: path,
isPermanent: true,
toPath: "/" + lang + path,
Language: lang
});
}
}
// Default language redirects for basic pages
for (let path of config.nakedPaths)
createRedirect({
fromPath: path,
isPermanent: true,
toPath: "/" + config.defaultLanguage + path
});
// Redirect for images in editor preview
for (let img of queries.markdownImages.allFile.edges)
createRedirect({
fromPath: "/:lang/edit/" + imgPathToWebPath(img.node.relativePath),
isPermanent: true,
toPath: img.node.publicURL
});
// Catch-all SPA redirect
createRedirect({
fromPath: "/*",
isPermanent: true,
toPath: "/en/"
});
resolve(true);
});
};