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fluorite.js
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fluorite.js
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const fs = require('fs-extra');
const yaml = require('yaml-import');
const path = require('path');
const _ = require('lodash');
const os = require('os');
const semver = require('semver');
const Renderer = require(path.join(__dirname, 'renderer.js'));
const Server = require(path.join(__dirname, 'server.js'));
const redirectTemplate = `
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta http-equiv="refresh" content="0; url=./{{REDIRECT_TO}}/" />
</head>
<body>
Redirecting...
</body>
</html>`.trim();
class Fluorite {
constructor() {
this._handlers = {};
}
get config() {
return this._originalConfig;
}
get options() {
return {
basePath: this._basePath,
themeConfig: this._themeConfig
};
}
load(configPathOrObject) {
this._basePath = configPathOrObject && typeof configPathOrObject === 'string' ? path.dirname(configPathOrObject) : '.';
this._readConfig(configPathOrObject && typeof configPathOrObject === 'string' ? path.basename(configPathOrObject) : configPathOrObject)
.then(config => {
this._emit('update', 'Config was loaded');
this._config = config;
this._server = new Server(config.serverOptions);
this._config.serverOptions = this._server.options;
// Determine theme directory
if ( fs.existsSync(path.join(__dirname, 'themes', this._config.rendererOptions.theme)) )
this._config.themeDir = path.join(__dirname, 'themes');
else if ( fs.existsSync(path.join(os.homedir(), '.fluorite', 'themes', this._config.rendererOptions.theme)) )
this._config.themeDir = path.join(os.homedir(), '.fluorite', 'themes');
else
this._config.themeDir = null;
// Load theme's config file (if any)
const themeDirectory = path.join(this._config.themeDir, this._config.rendererOptions.theme);
if ( fs.existsSync(path.join(themeDirectory, 'config.json')) )
this._themeConfig = this._require(path.join(themeDirectory, 'config.json'));
else if ( fs.existsSync(path.join(themeDirectory, 'config.yaml')) )
this._themeConfig = yaml.read(path.join(themeDirectory, 'config.yaml'));
else if ( fs.existsSync(path.join(themeDirectory, 'config.yml')) )
this._themeConfig = yaml.read(path.join(themeDirectory, 'config.yml'));
this._emit('ready');
})
.catch(error => this._emit('error', error));
return this;
}
on(event, cb) {
if ( ! this._handlers.hasOwnProperty(event) ) this._handlers[event] = [];
this._handlers[event].push(cb);
return this;
}
async generate() {
this._emit('update', 'Generating the docs...');
// See if outputDir is set
if ( ! this._config.outputDir || typeof this._config.outputDir !== 'string' || ! this._config.outputDir.trim() )
return this._emit('error', new Error('No outputDir set on config!'));
// See if root content is provided when multipage is on
if ( this._config.rendererOptions.multiPage && ! this._config.rootContent )
return this._emit('error', new Error('No root content provided for multi-page rendering!'));
// Parse all raw contents to HTML or API Objects
try {
await this._parseConfigSections(this._config);
await this._parseSectionContent(null, true);
}
catch (error) {
return this._emit('error', error);
}
const themeName = this._config.rendererOptions.theme;
const flavorName = this._config.rendererOptions.flavor;
let themeConfig = {}, css, template, helpers, partials, userAssets = {}, warnings = [];
// See if index.hbs exists
if ( ! fs.existsSync(path.join(this._config.themeDir, themeName, 'index.hbs')) )
return this._emit('error', new Error(`Could not find index.hbs of theme ${themeName}!`));
// See if styles.scss exists
if ( ! fs.existsSync(path.join(this._config.themeDir, themeName, 'styles.scss')) )
return this._emit('error', new Error(`Could not find styles.scss of theme ${themeName}!`));
// Load theme's config file (if any)
const themeDir = path.join(this._config.themeDir, themeName);
if ( fs.existsSync(path.join(themeDir, 'config.json')) )
themeConfig = this._require(path.join(this._config.themeDir, themeName, 'config.json'));
else if ( fs.existsSync(path.join(themeDir, 'config.yaml')) )
themeConfig = yaml.read(path.join(this._config.themeDir, themeName, 'config.yaml'));
else if ( fs.existsSync(path.join(themeDir, 'config.yml')) )
themeConfig = yaml.read(path.join(this._config.themeDir, themeName, 'config.yml'));
this._themeConfig = _.cloneDeep(themeConfig);
// Prepare theme's flavor (if any)
if ( themeConfig.hasFlavors ) {
const selectedFlavor = flavorName || themeConfig.defaultFlavor;
this._selectedFlavor = selectedFlavor;
// See if any flavor is selected
if ( ! selectedFlavor ) return this._emit('error', new Error(`No flavor selected for theme ${themeName} since theme has no default flavor!`));
// See if flavor sass file exists
if ( ! fs.existsSync(path.join(this._config.themeDir, themeName, 'flavors', `_${selectedFlavor}.scss`)) )
return this._emit('error', new Error(`Cannot find the ${selectedFlavor} flavor's .scss file of theme ${themeName}!`));
// Copy flavor file to _final.scss
try {
await fs.writeFile(path.join(this._config.themeDir, themeName, 'flavors', '_final.scss'), await fs.readFile(path.join(this._config.themeDir, themeName, 'flavors', `_${selectedFlavor}.scss`), { encoding: 'utf8' }));
}
catch (error) {
return this._emit('error', new Error('Could not generate final flavor!\n' + error));
}
}
// Read index.hbs
try {
template = await fs.readFile(path.join(this._config.themeDir, themeName, 'index.hbs'), { encoding: 'utf8' });
}
catch (error) {
return this._emit('error', new Error(`Could not read index.hbs!\n${error}`));
}
// Register theme's Handlebars helpers (if any)
if ( fs.existsSync(path.join(this._config.themeDir, themeName, 'hbs-helpers.js')) ) {
try {
helpers = this._require(path.join(this._config.themeDir, themeName, 'hbs-helpers.js'));
// Register helpers
this._renderer.registerHelpers(helpers);
}
catch (error) {
return this._emit('error', new Error(`Could not import theme's Handlebars helpers!\n${error}`));
}
}
// Register theme's Handlebars partials (if any)
if ( fs.existsSync(path.join(this._config.themeDir, themeName, 'hbs-partials.js')) ) {
try {
partials = this._require(path.join(this._config.themeDir, themeName, 'hbs-partials.js'));
// Register partials
this._renderer.registerPartials(partials);
}
catch (error) {
return this._emit('error', new Error(`Could not import theme's Handlebars partials!\n${error}`));
}
}
// Compile SASS to CSS
try {
let result = await this._renderer.compileSass(path.join(this._config.themeDir, themeName, 'styles.scss'));
// Save warnings
warnings = result.warnings().map(warning => warning.toString());
css = result.css;
}
catch (error) {
return this._emit('error', new Error(`Could not compile styles.scss!\n${error}`));
}
// Create output directory if needed or delete it's content if already exists
const outputDirPath = path.resolve(path.join(this._basePath, this._config.outputDir));
try {
// Ensure directory
await fs.ensureDir(outputDirPath);
// Scan the directory for files
const outputFiles = await fs.readdir(outputDirPath);
const promises = [];
// Remove all files and directories (ignoring any paths that start with a dot)
for ( const file of outputFiles ) {
if ( file.match(/^\..+$/) ) continue;
if ( this._config.exclusions && this._config.exclusions.length && this._config.exclusions.includes(file) ) continue;
promises.push(fs.remove(path.join(outputDirPath, file)));
}
await Promise.all(promises);
}
catch (error) {
return this._emit('error', new Error(`Could not create/clear output directory at ${outputDirPath}!\n${error}`));
}
// Write styles.css
try {
await fs.ensureDir(path.join(outputDirPath, 'assets', 'theme'));
await fs.writeFile(path.join(outputDirPath, 'assets', 'theme', 'styles.css'), css);
}
catch (error) {
return this._emit('error', new Error(`Could not write styles.css at ${path.join(outputDirPath, 'assets', 'styles.css')}!\n${error}`));
}
// Copy all theme assets
if ( themeConfig.assets ) {
try {
for ( const asset of themeConfig.assets ) {
await fs.copy(path.join(this._config.themeDir, themeName, asset), path.join(outputDirPath, 'assets', 'theme', asset));
}
}
catch (error) {
return this._emit('error', `Could not copy theme assets!\n${error}`);
}
}
// Copy all user assets
if ( themeConfig.userAssets && this._config.themeOptions ) {
try {
for ( const assetName in themeConfig.userAssets ) {
// If asset is not provided
if ( ! this._config.themeOptions[assetName] ) continue;
const assetPath = path.join(themeConfig.userAssets[assetName], path.basename(this._config.themeOptions[assetName]));
await fs.copy(path.resolve(path.join(this._basePath, this._config.themeOptions[assetName])), path.join(outputDirPath, 'assets', 'theme', assetPath));
// Add asset to template data
userAssets[assetName] = '/assets/theme/' + assetPath.replace(/\\/g, '/');
}
}
catch (error) {
return this._emit('error', `Could not copy user assets!\n${error}`);
}
}
// Copy all content assets
if ( this._config.contentAssets ) {
try {
await fs.ensureDir(path.resolve(path.join(this._basePath, this._config.outputDir, 'assets', 'contents')));
}
catch (error) {
return this._emit('error', new Error(`Could not create content assets directory!\n${error}`));
}
for ( const assetFilename in this._config.contentAssets ) {
const assetPath = path.resolve(path.join(this._basePath, this._config.basePath || '', assetFilename));
const assetDest = path.resolve(path.join(this._basePath, this._config.outputDir, 'assets', 'contents', this._config.contentAssets[assetFilename]));
try {
await fs.copy(assetPath, assetDest);
}
catch (error) {
return this._emit('error', new Error(`Could not copy content asset from ${assetFilename} to ${assetDest}!\n${error}`));
}
}
}
let templateData = [];
// Generate template data for each version
for ( const version of this._config.rendererOptions.versions ) {
let versionTemplateData;
// Generate template data
if ( this._config.rendererOptions.multiPage ) {
versionTemplateData = this._generateMultiPageTemplateData(this._config.rendererOptions, version, this._getBlueprintByVersion(version));
}
else {
versionTemplateData = this._generateTemplateData(this._config.rendererOptions, version);
}
templateData.push(versionTemplateData);
}
let hasVersions = this._config.rendererOptions.versions.length > 1;
// Generate the documentation
for ( let i = 0; i < this._config.rendererOptions.versions.length; i++ ) {
const version = this._config.rendererOptions.versions[i];
let finalPath = path.join(outputDirPath, hasVersions ? (version === '*' ? 'all' : version) : '');
// Create version directory if needed
try {
if ( hasVersions ) await fs.ensureDir(finalPath);
}
catch (error) {
return this._emit('error', new Error(`Could not create directory at ${finalPath}!`));
}
// Single page
if ( ! this._config.rendererOptions.multiPage ) {
// Render and write index.html
try {
await fs.writeFile(path.join(finalPath, 'index.html'), this._renderer.renderHandlebars(template, this._finalizeTemplateData(templateData[i], userAssets)));
}
catch (error) {
return this._emit('error', new Error(`Could not generate doc!\n${error}`));
}
}
else {
// Render and write the root index.html
try {
await fs.writeFile(path.join(finalPath, 'index.html'), this._renderer.renderHandlebars(template, this._finalizeTemplateData(templateData[i][0], userAssets)));
}
catch (error) {
return this._emit('error', new Error(`Could not generate doc!\n${error}`));
}
// Build the rest of the documentation recursively
try {
await this._generateMultiPageDocs(finalPath, templateData[i], template, userAssets, version);
}
catch (error) {
return this._emit('error', `Could not generate doc!\n${error}`);
}
}
}
// Create index.html for redirecting if needed
if ( hasVersions && ! this._config.rendererOptions.noRedirect ) {
try {
let defaultVersion = this._config.rendererOptions.defaultVersion;
// If default version is wrong
if ( defaultVersion && ! this._config.rendererOptions.versions.includes(defaultVersion) ) {
warnings.push(`Invalid default version "${defaultVersion}"! Latest version will be used for the redirect.`);
defaultVersion = undefined;
}
const redirectTo = (defaultVersion === '*' ? 'all' : defaultVersion) || this._config.rendererOptions.versions
.map(version => version === '*' ? 'all' : version)
.reduce((a,b) => a > b ? a : b);
await fs.writeFile(path.resolve(outputDirPath, 'index.html'), redirectTemplate.replace('{{REDIRECT_TO}}', redirectTo), { encoding: 'utf-8' });
}
catch (error) {
return this._emit('error', new Error(`Could not create index.html for redirection!\n${error}`));
}
}
// Minify the output
this._emit('update', 'Minifying the generated files...');
let outputFiles;
// Scan the output directory for JS, CSS, and HTML files
try {
outputFiles = await this._scanDir(outputDirPath);
}
catch (error) {
return this._emit('error', error);
}
outputFiles = outputFiles.filter(filename => ['.js', '.css'].includes(path.extname(filename)));
// Minify all the files (all .min files will be ignored)
try {
await this._renderer.minify(outputFiles);
}
catch (error) {
this._emit('error', new Error(`Could not minify the generated files!\n${error}`));
}
this._emit('finished', warnings);
}
async serve(port) {
this._emit('update', 'Serving the docs...');
// See if outputDir is set
if ( ! this._config.outputDir || typeof this._config.outputDir !== 'string' || ! this._config.outputDir.trim() )
return this._emit('error', new Error('No outputDir set on config!'));
try {
port = await this._server.serve(path.resolve(path.join(this._basePath, this._config.outputDir)), port);
this._emit('served', path.resolve(path.join(this._basePath, this._config.outputDir)), port);
}
catch (error) {
return this._emit('error', new Error(`Could not serve the docs!\n${error}`));
}
}
_emit(event, ...args) {
if ( ! this._handlers.hasOwnProperty(event) ) return;
for ( const handler of this._handlers[event] ) {
handler(...args);
}
}
async _readConfig(configPathOrObject) {
let config;
// Load flconfig.json
try {
// If path provided
if ( typeof configPathOrObject === 'string' ) {
const extension = path.extname(configPathOrObject).toLowerCase();
// If JSON file
if ( extension === '.json' )
config = this._require(path.resolve(this._basePath, configPathOrObject));
// If YAML file
else if ( extension === '.yaml' || extension === '.yml' )
config = yaml.read(path.resolve(this._basePath, configPathOrObject));
// If unsupported extension
else
throw new Error(`Invalid config file extension "${extension}"!`);
}
// If object provided
else if ( configPathOrObject && typeof configPathOrObject === 'object' && configPathOrObject.constructor === Object )
config = _.cloneDeep(configPathOrObject);
// If nothing provided
else {
// If flconfig.json exists
if ( fs.existsSync(path.resolve(this._basePath, 'flconfig.json')) )
config = this._require(path.resolve(this._basePath, 'flconfig.json'));
// If flconfig.yaml exists
else if ( fs.existsSync(path.resolve(this._basePath, 'flconfig.yaml')) )
config = yaml.read(path.resolve(this._basePath, 'flconfig.yaml'));
// If flconfig.yml exists
else if ( fs.existsSync(path.resolve(this._basePath, 'flconfig.yml')) )
config = yaml.read(path.resolve(this._basePath, 'flconfig.yml'));
// If none of the files exist
else
throw new Error('Could not find a Flourite config file!');
}
}
catch (error) {
throw error;
}
// Initialize a new renderer with the renderer options
this._renderer = new Renderer(config.rendererOptions);
// Update the renderer options on flconfig.json with the final resolved renderer options
config.rendererOptions = this._renderer.options;
this._originalConfig = _.cloneDeep(config);
// Load the blueprint (read all contents)
try {
config.blueprint = await this._loadBlueprint(config.blueprint, config.basePath);
}
catch (error) {
throw error;
}
// Load root content (if any)
if ( config.rootContent && config.rendererOptions.multiPage ) {
try {
config.rootContent = await this._loadContent(config.basePath, config.rootContent);
}
catch (error) {
throw error;
}
}
return config;
}
async _loadBlueprint(blueprint, basePath) {
const loaded = [];
// Read each section definition in blueprint
for ( const definition of blueprint ) {
const section = {
title: definition.title,
raw: [],
version: definition.version || '*' // Default version
};
// Recur if section has a sub-section
if ( definition.hasOwnProperty('sub') && typeof definition.sub === 'object' && definition.sub.constructor === Array ) {
section.sub = await this._loadBlueprint(definition.sub, basePath);
}
// Load array of contents
if ( typeof definition.content === 'object' && definition.content.constructor === Array ) {
for ( const contentPath of definition.content ) {
try {
section.raw.push(await this._loadContent(basePath, contentPath));
}
catch (error) {
throw error;
}
}
}
// Load single content
else if ( typeof definition.content === 'string' ) {
try {
section.raw.push(await this._loadContent(basePath, definition.content));
}
catch (error) {
throw error;
}
}
else {
throw new Error('Invalid content on section ' + definition.title + '!');
}
// Add the resolved section to loaded array
loaded.push(section);
}
return loaded;
}
async _loadContent(basePath, contentPath) {
// Get extension name
const ext = path.extname(contentPath);
// Load the content from file
try {
if ( ext.toLowerCase() === '.md' ) return await fs.readFile(path.resolve(path.join(this._basePath, basePath || '', contentPath)), { encoding: 'utf8' });
if ( ext.toLowerCase() === '.json' ) return this._require(path.resolve(path.join(this._basePath, basePath || '', contentPath)));
if ( ext.toLowerCase() === '.yaml' ) return yaml.read(path.resolve(path.join(this._basePath, basePath || '', contentPath)));
if ( ext.toLowerCase() === '.yml' ) return yaml.read(path.resolve(path.join(this._basePath, basePath || '', contentPath)));
}
catch (error) {
throw new Error('Could not load content at "' + path.resolve(path.join(this._basePath, basePath || '', contentPath)) + '"!\n' + error);
}
throw new Error('Content type not supported: ' + contentPath);
}
async _parseConfigSections(config) {
for ( const section of config.blueprint ) {
// Parse sections
try {
await this._parseSectionContent(section);
}
catch (error) {
throw error;
}
}
}
async _parseSectionContent(section, root, previousTitles) {
previousTitles = previousTitles || [];
// Root content
if ( root ) {
// Skip if multi-page is off
if ( ! this._config.rendererOptions.multiPage ) return;
// Markdown
if ( typeof this._config.rootContent === 'string' ) this._config.rootContent = this._renderer.renderMarkdown(this._config.rootContent);
// API
if ( typeof this._config.rootContent === 'object' ) {
try {
await this._finalizeRawAPI(this._config.rootContent);
}
catch (error) {
throw error;
}
this._config.rootContent = this._renderer.renderAPI(this._config.rootContent);
}
return;
}
// Recur if section has sub-sections
if ( section.sub ) {
for ( const subSection of section.sub ) {
try {
await this._parseSectionContent(subSection, false, previousTitles.concat(section.title));
}
catch (error) {
throw new Error(`Could not parse content of section ${subSection.title}!\n${error}`);
}
}
}
// Parse section content
section.content = [];
for ( const raw of section.raw ) {
// Markdown
if ( typeof raw === 'string' ) section.content.push(this._renderer.renderMarkdown(raw, ! this._config.rendererOptions.multiPage ? previousTitles.concat(section.title) : undefined));
// API
if ( typeof raw === 'object' ) {
try {
await this._finalizeRawAPI(raw);
}
catch (error) {
throw error;
}
section.content.push(this._renderer.renderAPI(raw, ! this._config.rendererOptions.multiPage ? previousTitles.concat(section.title) : undefined));
}
}
// Delete the raw content
delete section.raw;
}
async _finalizeRawAPI(raw) {
// Convert object bodies to arrays with a single item
if ( raw.request && raw.request.body ) {
if ( raw.request.body.constructor === Object ) raw.request.body = [raw.request.body];
// Load external files
try {
await this._loadExternalAPIFiles(raw.request);
}
catch (error) {
throw error;
}
}
if ( raw.response && raw.response.body ) {
if ( raw.response.body.constructor === Object ) raw.response.body = [raw.response.body];
// Load external files
try {
await this._loadExternalAPIFiles(raw.response);
}
catch (error) {
throw error;
}
}
if ( raw.examples ) {
for ( const example of raw.examples ) {
if ( example.request && example.request.body ) {
if ( example.request.body.constructor === Object ) example.request.body = [example.request.body];
// Load external files
try {
await this._loadExternalAPIFiles(example.request, 'value');
}
catch (error) {
throw error;
}
}
if ( example.response && example.response.body ) {
if ( example.response.body.constructor === Object ) example.response.body = [example.response.body];
// Load external files
try {
await this._loadExternalAPIFiles(example.response, 'value');
}
catch (error) {
throw error;
}
}
}
}
}
async _loadExternalAPIFiles(object, key) {
for ( const body of object.body ) {
if ( body.externalFile ) {
const ext = path.extname(body.externalFile);
try {
if ( ext === '.json' ) body[key || 'model'] = this._require(path.resolve(path.join(this._basePath, body.externalFile)));
if ( ext === '.yaml' || ext === '.yml' ) body[key || 'model'] = yaml.read(path.resolve(path.join(this._basePath, body.externalFile)));
if ( ext === '.xml' ) body[key || 'model'] = (await fs.readFile(path.resolve(path.join(this._basePath, body.externalFile)), { encoding: 'utf8' })).trim();
}
catch (error) {
throw error;
}
delete body.externalFile;
}
}
}
async _generateMultiPageDocs(finalPath, templateData, template, userAssets, version) {
for ( const pageData of templateData ) {
// Skip root
if ( ! pageData.path.length ) continue;
const dirPath = this._resolveSectionPath(pageData.path, version);
// Create directory
try {
await fs.ensureDir(path.join(finalPath, dirPath));
}
catch (error) {
throw error;
}
// Render and write index.html
try {
await fs.writeFile(path.join(finalPath, dirPath, 'index.html'), this._renderer.renderHandlebars(template, this._finalizeTemplateData(pageData, userAssets)));
}
catch (error) {
throw error;
}
}
}
_generateMultiPageTemplateData(rendererOptions, version, blueprint, pathPrefix, rootGenerated) {
// Empty array for path prefix if it's the outer call
pathPrefix = pathPrefix || [];
let data = [];