Merge pull request #964 from GitbookIO/features/plugin_api

Better APIs for Plugins

1 files changed, 83 insertions, 0 deletions

diff --git a/lib/init.js b/lib/init.js
new file mode 100644
index 0000000..2fc8016
--- /dev/null
+++ b/lib/init.js
@@ -0,0 +1,83 @@
+var _ = require('lodash');
+var Q = require('q');
+var path = require('path');
+
+var Book = require('./book');
+var fs = require('./utils/fs');
+
+// Initialize folder structure for a book
+// Read SUMMARY to created the right chapter
+function initBook(root, opts) {
+    var book = new Book(root, opts);
+    var extensionToUse = '.md';
+
+    var chaptersPaths = function(chapters) {
+        return _.reduce(chapters || [], function(accu, chapter) {
+            var o = {
+                title: chapter.title
+            };
+            if (chapter.path) o.path = chapter.path;
+
+            return accu.concat(
+                [o].concat(chaptersPaths(chapter.articles))
+            );
+        }, []);
+    };
+
+    book.log.info.ln('init book at', root);
+    return fs.mkdirp(root)
+    .then(function() {
+        book.log.info.ln('detect structure from SUMMARY (if it exists)');
+        return book.parseSummary();
+    })
+    .fail(function() {
+        return Q();
+    })
+    .then(function() {
+        var summary = book.summaryFile || 'SUMMARY.md';
+        var chapters = book.summary.chapters || [];
+        extensionToUse = path.extname(summary);
+
+        if (chapters.length === 0) {
+            chapters = [
+                {
+                    title: 'Summary',
+                    path: 'SUMMARY'+extensionToUse
+                },
+                {
+                    title: 'Introduction',
+                    path: 'README'+extensionToUse
+                }
+            ];
+        }
+
+        return Q(chaptersPaths(chapters));
+    })
+    .then(function(chapters) {
+        // Create files that don't exist
+        return Q.all(_.map(chapters, function(chapter) {
+            if (!chapter.path) return Q();
+            var absolutePath = path.resolve(book.root, chapter.path);
+
+            return fs.exists(absolutePath)
+            .then(function(exists) {
+                if(exists) {
+                    book.log.info.ln('found', chapter.path);
+                    return;
+                } else {
+                    book.log.info.ln('create', chapter.path);
+                }
+
+                return fs.mkdirp(path.dirname(absolutePath))
+                .then(function() {
+                    return fs.writeFile(absolutePath, '# '+chapter.title+'\n');
+                });
+            });
+        }));
+    })
+    .then(function() {
+        book.log.info.ln('initialization is finished');
+    });
+}
+
+module.exports = initBook;