Add base for generating languages index

6 files changed, 104 insertions, 35 deletions

diff --git a/lib/generate/generator.js b/lib/generate/generator.js
index 3fe080e..13022a5 100644
--- a/lib/generate/generator.js
+++ b/lib/generate/generator.js
@@ -23,6 +23,10 @@ BaseGenerator.prototype.transferFolder = function(input) {
     );
 };
 
+BaseGenerator.prototype.langsIndex = function(langs) {
+    return Q.reject(new Error("Langs index is not supported in this generator"));
+};
+
 BaseGenerator.prototype.finish = function() {
     return Q.reject(new Error("Could not finish generation"));
 };
diff --git a/lib/generate/index.js b/lib/generate/index.js
index b46c96b..c8b98ef 100644
--- a/lib/generate/index.js
+++ b/lib/generate/index.js
@@ -61,6 +61,11 @@ var generate = function(options) {
         })
     })
 
+    // Create the generator
+    .then(function() {
+        generator = new generators[options.generator](options);
+    })
+
     // Detect multi-languages book
     .then(function() {
         if (_.contains(files, "README.md") && _.contains(files, "LANGS.md")) {
@@ -69,22 +74,22 @@ var generate = function(options) {
 
             // Generate sub-books
             .then(function(_langsSummary) {
-                options.langsSummary = parse.summary(_langsSummary);
+                options.langsSummary = parse.langs(_langsSummary);
                 
                 // Generated a book for each valid entry
                 return Q.all(
-                    _.chain(langsSummary.chapters)
-                    .filter(function(entry) {
-                        return entry.path != null;
-                    })
-                    .map(function(entry) {
+                    _.map(options.langsSummary.list, function(entry) {
                         return generate(_.extend({}, options, {
                             input: path.join(options.input, entry.path),
                             output: path.join(options.output, entry.path)
                         }));
-                    })
-                    .value()
+                    })    
                 );
+            })
+
+            // Generate languages index
+            .then(function() {
+                return generator.langsIndex(options.langsSummary);
             });
         } else if (!_.contains(files, "SUMMARY.md") || !_.contains(files, "README.md")) {
             // Invalid book
@@ -101,11 +106,6 @@ var generate = function(options) {
                 options.navigation = parse.navigation(options.summary);
             })
 
-            // Create the generator
-            .then(function() {
-                generator = new generators[options.generator](options);
-            })
-
             // Copy file and replace markdown file
             .then(function() {
                 return Q.all(
@@ -127,13 +127,13 @@ var generate = function(options) {
                     .value()
                 );
             })
-
-            // Finish gneration
-            .then(function() {
-                return generator.finish();
-            });
         }
     })
+
+    // Finish gneration
+    .then(function() {
+        return generator.finish();
+    });
 };
 
 module.exports = {
diff --git a/lib/generate/site/index.js b/lib/generate/site/index.js
index bf711d3..a8626a9 100644
--- a/lib/generate/site/index.js
+++ b/lib/generate/site/index.js
@@ -23,10 +23,36 @@ var Generator = function() {
 
     // Load base template
     this.template = swig.compileFile(path.resolve(this.options.theme, 'templates/site.html'));
+    this.langsTemplate = swig.compileFile(path.resolve(this.options.theme, 'templates/langs.html'));
 };
 util.inherits(Generator, BaseGenerator);
 
 
+// Generate a template
+Generator.prototype._writeTemplate = function(tpl, options, output) {
+    var that = this;
+    return Q()
+    .then(function(sections) {
+        return tpl(_.extend({
+            title: that.options.title,
+            description: that.options.description,
+
+            githubAuthor: that.options.github.split("/")[0],
+            githubId: that.options.github,
+            githubHost: that.options.githubHost,
+
+            summary: that.options.summary,
+            allNavigation: that.options.navigation
+        }, options));
+    })
+    .then(function(html) {
+        return fs.writeFile(
+            output,
+            html
+        );
+    });
+};
+
 // Convert a markdown file to html
 Generator.prototype.convertFile = function(content, _input) {
     var that = this;
@@ -47,16 +73,7 @@ Generator.prototype.convertFile = function(content, _input) {
         });
     })
     .then(function(sections) {
-        return that.template({
-            title: that.options.title,
-            description: that.options.description,
-
-            githubAuthor: that.options.github.split("/")[0],
-            githubId: that.options.github,
-            githubHost: that.options.githubHost,
-
-            summary: that.options.summary,
-            allNavigation: that.options.navigation,
+        return that._writeTemplate(that.template, {
             progress: progress,
 
             _input: _input,
@@ -64,16 +81,21 @@ Generator.prototype.convertFile = function(content, _input) {
 
             basePath: basePath,
             staticBase: path.join(basePath, "gitbook"),
-        });
-    })
-    .then(function(html) {
-        return fs.writeFile(
-            output,
-            html
-        );
+        }, output);
     });
 };
 
+// Generate languages index
+Generator.prototype.langsIndex = function(langs) {
+    var basePath = ".";
+    return this._writeTemplate(this.langsTemplate, {
+        langs: langs.list,
+
+        basePath: basePath,
+        staticBase: path.join(basePath, "gitbook"),
+    }, path.join(this.options.output, "index.html"));
+};
+
 // Symlink index.html and copy assets
 Generator.prototype.finish = function() {
     var that = this;
diff --git a/lib/parse/index.js b/lib/parse/index.js
index 951e401..ec98347 100644
--- a/lib/parse/index.js
+++ b/lib/parse/index.js
@@ -1,5 +1,6 @@
 module.exports = {
     summary: require('./summary'),
+    langs: require('./langs'),
     page: require('./page'),
     progress: require('./progress'),
     navigation: require('./navigation'),
diff --git a/lib/parse/langs.js b/lib/parse/langs.js
new file mode 100644
index 0000000..46c3a46
--- /dev/null
+++ b/lib/parse/langs.js
@@ -0,0 +1,23 @@
+var _ = require("lodash")
+var parseSummary = require("./summary");
+
+var parseLangs = function(content) {
+    var summary = parseSummary(content);
+
+    return {
+        list: _.chain(summary.chapters)
+            .filter(function(entry) {
+                return entry.path != null;
+            })
+            .map(function(entry) {
+                return {
+                    title: entry.title,
+                    path: entry.path,
+                    lang: entry.path.replace("/", "")
+                };
+            })
+            .value()
+    }
+};
+
+module.exports = parseLangs;
\ No newline at end of file
diff --git a/theme/templates/langs.html b/theme/templates/langs.html
new file mode 100644
index 0000000..238889d
--- /dev/null
+++ b/theme/templates/langs.html
@@ -0,0 +1,19 @@
+{% extends "layout.html" %}
+
+{% block title %}{{ title }}{% endblock %}
+
+{% block content %}
+<div class="book-langs-index">
+    <h1>{{ title }}</h1>
+
+    <ul class="languages">
+    {%  for lang in langs %}
+        <li>
+            <a href="{{ basePath}}/{{ lang.path }}">{{ lang.title }}</a>
+        </li>
+    {% endfor %}
+    </ul>
+</div>
+{% endblock %}
+
+{% block javascript %}{% endblock %}
\ No newline at end of file