Macro support

lib/helpers.js

@@ -94,6 +94,21 @@ var walk = function(dir, done) {
 
 }
 
+var loadMacros = function(projectPath) {
+  var macros = {}
+  var macroDir  = path.join(projectPath, "_macros/")
+  if (!fs.existsSync(macroDir)) {
+    return macros
+  }
+  fs.readdirSync(macroDir).forEach(function(file) {
+    if(!file.match(/.+\.js/)) {
+      return
+    }
+    macros[file.replace('.js', '')] = require(path.join(macroDir, file));
+  })
+  return macros
+}
+
 
 /**
  *
@@ -131,14 +146,17 @@ exports.setup = function(projectPath, env){
     var configPath  = path.join(projectPath, "harp.json")
     var contents    = fs.readFileSync(configPath).toString()
     var publicPath  = path.join(projectPath, "public")
+    var macros      = loadMacros(projectPath)
   }catch(e){
     try{
       var configPath  = path.join(projectPath, "_harp.json")
       var contents    = fs.readFileSync(configPath).toString()
       var publicPath  = projectPath
+      var macros      = loadMacros(projectPath)
     }catch(e){
       var contents    = "{}"
       var publicPath  = projectPath
+      var macros      = loadMacros(projectPath)
     }
   }
 
@@ -168,6 +186,8 @@ exports.setup = function(projectPath, env){
   // e.g. '$foo' -> process.env.foo
   cfg = envy(cfg)
 
+  cfg.globals.macros = macros
+
   return {
     projectPath : projectPath,
     publicPath  : publicPath,

package.json

@@ -19,6 +19,7 @@
   , "Remy Sharp <remy@remysharp.com>"
   , "Zeke Sikelianos <zeke@sikelianos.com>"
   , "Marc Knaup <marc.knaup@koeln.de>"
+  , "Massimiliano Marcon <me@marcon.me>"
   ],
   "keywords": [
     "static web server",

test/apps/macros/_macros/test.js

@@ -0,0 +1,3 @@
+module.exports = function(someparam) {
+    return 'macro:' + someparam;
+}

test/apps/macros/index.ejs

@@ -0,0 +1 @@
+<%- macros.test('foo') %>

test/helpers.js

@@ -102,6 +102,19 @@ describe("helpers", function(){
       done()
     })
 
+    it("should load macros when available", function(done){
+      var cfg = helpers.setup(path.join(__dirname, "apps", "macros"))
+      cfg.should.have.property("config")
+      cfg.should.have.property("projectPath")
+      cfg.should.have.property("publicPath")
+      cfg.config.should.have.property("globals")
+      cfg.config.globals.should.have.property("macros")
+      cfg.config.globals.macros.should.have.property("test")
+      cfg.config.globals.macros.test.should.be.type("function")
+      should(cfg.config.globals.macros.test("foo")).equal("macro:foo")
+      done()
+    })
+
   })
 
   describe("prime(outputPath)", function(){