Add conrefs loader for templating

lib/output/createTemplateEngine.js

@@ -1,7 +1,7 @@
 var Immutable = require('immutable');
 
+var Templating = require('../templating');
 var TemplateEngine = require('../models/templateEngine');
-var ConrefsLoader = require('./loaders/conrefs');
 
 var defaultBlocks = require('../constants/defaultBlocks');
 var defaultFilters = require('../constants/defaultFilters');
@@ -15,6 +15,9 @@ var defaultFilters = require('../constants/defaultFilters');
 */
 function createTemplateEngine(output) {
     var plugins = output.getPlugins();
+    var book = output.getBook();
+    var rootFolder = book.getRoot();
+    var logger = book.getLogger();
 
     var filters = plugins
         .reduce(function(result, plugin) {
@@ -31,7 +34,8 @@ function createTemplateEngine(output) {
     blocks = defaultBlocks.concat(blocks);
     filters = defaultFilters.merge(filters);
 
-    var loader = new ConrefsLoader();
+    // Create loader
+    var loader = new Templating.ConrefsLoader(rootFolder, logger);
 
     return new TemplateEngine({
         filters: filters,

lib/output/json/index.js

@@ -1,6 +1,6 @@
 
-
 module.exports = {
+    name:       'json',
     Options:    require('./options'),
     onPage:     require('./onPage')
 };

lib/output/loaders/conrefs.js

@@ -1,8 +0,0 @@
-var nunjucks = require('nunjucks');
-
-var Loader = nunjucks.Loader.extend({
-    async: true,
-
-});
-
-module.exports = Loader;

lib/output/website/createTemplateEngine.js

@@ -0,0 +1,15 @@
+var TemplateEngine = require('../../models/templateEngine');
+
+/**
+    Create templating engine to render themes
+
+    @param {Output}
+    @return {TemplateEngine}
+*/
+function createTemplateEngine(output) {
+    return new TemplateEngine({
+
+    });
+}
+
+module.exports = createTemplateEngine;

lib/output/website/index.js

@@ -0,0 +1,6 @@
+
+module.exports = {
+    name:       'json',
+    Options:    require('./options'),
+    onPage:     require('./onPage')
+};

lib/output/website/onAsset.js

@@ -0,0 +1,23 @@
+var path = require('path');
+var fs = require('../../utils/fs');
+
+/**
+    Copy an asset to the outptu folder
+
+    @param {Output} output
+    @param {Page} page
+*/
+function onAsset(output, asset) {
+    var book = output.getBook();
+    var options = output.getOptions();
+
+    var rootFolder = book.getRoot();
+    var outputFolder = options.get('root');
+
+    var filePath = path.resolve(rootFolder, asset);
+    var outputPath = path.resolve(outputFolder, asset);
+
+    return fs.copy(filePath, outputPath);
+}
+
+module.exports = onAsset;

lib/output/website/onPage.js

@@ -0,0 +1,32 @@
+var Templating = require('../../templating');
+var JSONUtils = require('../../json');
+var Modifiers = require('../modifiers');
+var Writer = require('../writer');
+var getModifiers = require('../getModifiers');
+var createTemplateEngine = require('./createTemplateEngine');
+
+/**
+    Write a page as a json file
+
+    @param {Output} output
+    @param {Page} page
+*/
+function onPage(output, page) {
+    var engine = createTemplateEngine(output);
+
+    return Modifiers.modifyHTML(page, getModifiers(output, page))
+    .then(function(resultPage) {
+        // Generate the context
+        var context = JSONUtils.encodeBookWithPage(output.getBook(), resultPage);
+
+        // Render the theme
+        return Templating.renderFile(engine, 'website/page.html', context)
+
+        // Write it to the disk
+        .then(function(html) {
+            return Writer.writePage(output, resultPage, html);
+        });
+    });
+}
+
+module.exports = onPage;

lib/output/website/options.js

@@ -0,0 +1,8 @@
+var Immutable = require('immutable');
+
+var Options = Immutable.Record({
+    // Root folder for the output
+    root:       String()
+});
+
+module.exports = Options;

lib/templating/conrefsLoader.js

@@ -0,0 +1,72 @@
+var path = require('path');
+var nunjucks = require('nunjucks');
+
+var fs = require('../utils/fs');
+var Git = require('../utils/git');
+var LocationUtils = require('../utils/location');
+var PathUtils = require('../utils/path');
+
+
+/**
+    Template loader resolving both:
+        - relative url ("./test.md")
+        - absolute url ("/test.md")
+        - git url ("")
+*/
+var ConrefsLoader = nunjucks.Loader.extend({
+    async: true,
+
+    init: function(rootFolder, logger) {
+        this.rootFolder = rootFolder;
+        this.logger = logger;
+        this.git = new Git();
+    },
+
+    getSource: function(sourceURL, callback) {
+        var that = this;
+
+        this.git.resolve(sourceURL)
+        .then(function(filepath) {
+            // Is local file
+            if (!filepath) {
+                filepath = path.resolve(sourceURL);
+            } else {
+                if (that.logger) that.logger.debug.ln('resolve from git', sourceURL, 'to', filepath);
+            }
+
+            //  Read file from absolute path
+            return fs.readFile(filepath)
+            .then(function(source) {
+                return {
+                    src: source.toString('utf8'),
+                    path: filepath
+                };
+            });
+        })
+        .nodeify(callback);
+    },
+
+    resolve: function(from, to) {
+        // If origin is in the book, we enforce result file to be in the book
+        if (PathUtils.isInRoot(this.root, from)) {
+            var href = LocationUtils.toAbsolute(to, path.dirname(from), '');
+            return PathUtils.resolveInRoot(this.root, href);
+        }
+
+        // If origin is in a git repository, we resolve file in the git repository
+        var gitRoot = this.git.resolveRoot(from);
+        if (gitRoot) {
+            return PathUtils.resolveInRoot(gitRoot, to);
+        }
+
+        // If origin is not in the book (include from a git content ref)
+        return path.resolve(path.dirname(from), to);
+    },
+
+    // Handle all files as relative, so that nunjucks pass responsability to 'resolve'
+    isRelative: function(filename) {
+        return LocationUtils.isRelative(filename);
+    }
+});
+
+module.exports = ConrefsLoader;

lib/templating/index.js

@@ -1,5 +1,8 @@
 
 module.exports = {
     render:         require('./render'),
-    postRender:     require('./postRender')
+    renderFile:     require('./renderFile'),
+    postRender:     require('./postRender'),
+
+    ConrefsLoader:  require('./conrefsLoader')
 };

lib/templating/renderFile.js

@@ -0,0 +1,27 @@
+var Promise = require('../utils/promise');
+
+var replaceShortcuts = require('./replaceShortcuts');
+
+/**
+    Render a template
+
+    @param {TemplateEngine} engine
+    @param {String} filePath
+    @param {String} content
+    @param {Object} ctx
+    @return {Promise<String>}
+*/
+function renderTemplateFile(engine, filePath, content, context) {
+    context = context || {};
+    var env = engine.toNunjucks();
+
+    content = replaceShortcuts(engine, filePath, content);
+
+    return Promise.nfcall(
+        env.render.bind(env),
+        content,
+        context
+    );
+}
+
+module.exports = renderTemplateFile;