5 files changed, 115 insertions, 0 deletions
diff --git a/lib/output/helper/fileToOutput.js b/lib/output/helper/fileToOutput.js
new file mode 100644
index 0000000..9673162
--- /dev/null
+++ b/lib/output/helper/fileToOutput.js
@@ -0,0 +1,32 @@
+var path = require('path');
+
+var PathUtils = require('../../utils/path');
+var LocationUtils = require('../../utils/location');
+
+var OUTPUT_EXTENSION = '.html';
+
+/**
+    Convert a filePath (absolute) to a filename for output
+
+    @param {Output} output
+    @param {String} filePath
+    @return {String}
+*/
+function fileToOutput(output, filePath) {
+    var book = output.getBook();
+    var readme = book.getReadme();
+    var fileReadme = readme.getFile();
+
+    if (
+        path.basename(filePath, path.extname(filePath)) == 'README' ||
+        (fileReadme.exists() && filePath == fileReadme.getPath())
+    ) {
+        filePath = path.join(path.dirname(filePath), 'index' + OUTPUT_EXTENSION);
+    } else {
+        filePath = PathUtils.setExtension(filePath, OUTPUT_EXTENSION);
+    }
+
+    return LocationUtils.normalize(filePath);
+}
+
+module.exports = fileToOutput;
diff --git a/lib/output/helper/fileToURL.js b/lib/output/helper/fileToURL.js
new file mode 100644
index 0000000..44ad2d8
--- /dev/null
+++ b/lib/output/helper/fileToURL.js
@@ -0,0 +1,31 @@
+var path = require('path');
+var LocationUtils = require('../../utils/location');
+
+var fileToOutput = require('./fileToOutput');
+
+/**
+    Convert a filePath (absolute) to an url (without hostname).
+    It returns an absolute path.
+
+    "README.md" -> "/"
+    "test/hello.md" -> "test/hello.html"
+    "test/README.md" -> "test/"
+
+    @param {Output} output
+    @param {String} filePath
+    @return {String}
+*/
+function fileToURL(output, filePath) {
+    var options = output.getOptions();
+    var directoryIndex = options.get('directoryIndex');
+
+    filePath = fileToOutput(output, filePath);
+
+    if (directoryIndex && path.basename(filePath) == 'index.html') {
+        filePath = path.dirname(filePath) + '/';
+    }
+
+    return LocationUtils.normalize(filePath);
+}
+
+module.exports = fileToURL;
diff --git a/lib/output/helper/index.js b/lib/output/helper/index.js
new file mode 100644
index 0000000..f8bc109
--- /dev/null
+++ b/lib/output/helper/index.js
@@ -0,0 +1,2 @@
+
+module.exports = {};
diff --git a/lib/output/helper/resolveFileToUrl.js b/lib/output/helper/resolveFileToUrl.js
new file mode 100644
index 0000000..3dba8f7
--- /dev/null
+++ b/lib/output/helper/resolveFileToUrl.js
@@ -0,0 +1,27 @@
+var LocationUtils = require('../../utils/location');
+
+var fileToURL = require('./fileToURL');
+
+/**
+    Resolve an absolute path (extracted from a link)
+
+    @param {Output} output
+    @param {String} filePath
+    @return {String}
+*/
+function resolveFileToURL(output, filePath) {
+    // Convert /test.png -> test.png
+    filePath = LocationUtils.toAbsolute(filePath, '', '');
+
+    var pages = output.getPages();
+    var page = pages.get(filePath);
+
+    // if file is a page, return correct .html url
+    if (page) {
+        filePath = fileToURL(output, filePath);
+    }
+
+    return LocationUtils.normalize(filePath);
+}
+
+module.exports = resolveFileToURL;
diff --git a/lib/output/helper/writeFile.js b/lib/output/helper/writeFile.js
new file mode 100644
index 0000000..3e2261d
--- /dev/null
+++ b/lib/output/helper/writeFile.js
@@ -0,0 +1,23 @@
+var path = require('path');
+var fs = require('../../utils/fs');
+
+/**
+    Write a file to the output folder
+
+    @param {Output} output
+    @param {String} filePath
+    @param {Buffer|String} content
+    @return {Promise}
+*/
+function writeFile(output, filePath, content) {
+    var rootFolder = output.getRoot();
+    filePath = path.join(rootFolder, filePath);
+
+    return fs.ensure(filePath)
+    .then(function() {
+        return fs.writeFile(filePath, content);
+    })
+    .thenResolve(output);
+}
+
+module.exports = writeFile;