Reviewers: mp+192286_code.launchpad.net,

Message:
Please take a look.

Description:
Fix export and import bugs

Our support for exporting and importing config values and expose flags
was buggy.  This fixes four discrete but related bugs.

  - Exporting config values would exclude those that had false-y default
values.
  - We did not export the expose flag.
  - Importing config values did not work.
  - We called the expose flag "exposed", which is not what the actual
delpoyer expects.

To qa, open up the sandbox, deploy apache with "enable_modules" set to
something or other, and expose it.  Then export the environment.  When
you look at the service in the file, you should see "expose: true" and
"enable_modules: mod_proxy" or whatever value you set.  Then reload the
GUI and drag the file into the sandbox.  When the service has loaded,
you should see that it is exposed, and when you look at the config in
the inspector, you should see your value in the "enable_modules" field.

https://code.launchpad.net/~gary/juju-gui/exportBugs/+merge/192286

(do not edit description out of merge proposal)


Please review this at https://codereview.appspot.com/15400052/

Affected files (+76, -12 lines):
   A [revision details]
   M app/models/models.js
   M app/store/env/fakebackend.js
   M test/data/wp-deployer.yaml
   M test/test_fakebackend.js
   M test/test_model.js


Index: [revision details]
=== added file '[revision details]'
--- [revision details]	2012-01-01 00:00:00 +0000
+++ [revision details]	2012-01-01 00:00:00 +0000
@@ -0,0 +1,2 @@
+Old revision: <email address hidden>
+New revision: <email address hidden>

Index: test/test_fakebackend.js
=== modified file 'test/test_fakebackend.js'
--- test/test_fakebackend.js	2013-10-15 08:16:18 +0000
+++ test/test_fakebackend.js	2013-10-23 05:23:16 +0000
@@ -528,6 +528,10 @@
        });
      });

+    beforeEach(function() {
+      fakebackend = utils.makeFakeBackend();
+    });
+
      afterEach(function() {
        if (fakebackend) {
          fakebackend.destroy();
@@ -555,9 +559,16 @@

              // Verify config.
              var wordpress = fakebackend.db.services.getById('wordpress');
+            var wordpressCharm = fakebackend.db.charms.getById(
+                'cs:precise/wordpress-15');
              var mysql = fakebackend.db.services.getById('mysql');
-            assert.equal(wordpress.get('config.engine'), 'nginx');
+            // This value is different from the default (nginx).
+             
assert.equal(wordpressCharm.get('options.engine.default'), 'nginx');
+            assert.equal(wordpress.get('config.engine'), 'apache');
+            // This value is the default, as provided by the charm.
              assert.equal(wordpress.get('config.tuning'), 'single');
+            assert.isTrue(wordpress.get('exposed'));
+            assert.isFalse(mysql.get('exposed'));

              // Constraints
              var constraints = mysql.get('constraints');


Index: test/test_model.js
=== modified file 'test/test_model.js'
--- test/test_model.js	2013-10-16 11:55:56 +0000
+++ test/test_model.js	2013-10-23 03:34:59 +0000
@@ -867,6 +867,52 @@
        assert.isUndefined(result.services.puppet.num_units);
      });

+    it('exports non-default options', function() {
+      db.services.add({
+        id: 'wordpress',
+        charm: 'precise/wordpress-1',
+        config: {one: '1', two: '2', three: '3', four: '4', five: true},
+        annotations: {'gui-x': 100, 'gui-y': 200}
+      });
+      db.charms.add([{id: 'precise/mysql-1'},
+            {id: 'precise/wordpress-1',
+              options: {
+                one: {
+                  'default': ''
+                },
+                two: {
+                  'default': null
+                },
+                three: {
+                  'default': undefined
+                },
+                four: {
+                  'default': '0'
+                },
+                five: {
+                  'default': false
+                }
+              }
+            }
+          ]);
+      var result = db.exportDeployer().envExport;
+      assert.equal(result.services.wordpress.options.one, '1');
+      assert.equal(result.services.wordpress.options.two, '2');
+      assert.equal(result.services.wordpress.options.three, '3');
+      assert.equal(result.services.wordpress.options.four, '4');
+      assert.equal(result.services.wordpress.options.five, true);
+    });
+
+    it('exports exposed flag', function() {
+      db.services.add({id: 'wordpress', charm: 'precise/wordpress-4'});
+      db.charms.add([{id: 'precise/wordpress-4'}]);
+      var result = db.exportDeployer().envExport;
+      assert.isUndefined(result.services.wordpress.expose);
+      db.services.getById('wordpress').set('exposed', true);
+      result = db.exportDeployer().envExport;
+      assert.isTrue(result.services.wordpress.expose);
+    });
+
    });

    describe('service models', function() {


Index: app/models/models.js
=== modified file 'app/models/models.js'
--- app/models/models.js	2013-10-16 11:55:56 +0000
+++ app/models/models.js	2013-10-23 03:34:59 +0000
@@ -1168,9 +1168,9 @@
          // that are the default value for the charm.
          Y.each(service.get('config'), function(value, key) {
            var optionData = charmOptions && charmOptions[key];
-          if ((!optionData && value !== undefined) ||
-              (optionData && optionData['default'] &&
-              (value !== optionData['default']))) {
+          var defaultVal = optionData && optionData['default'];
+          var hasDefault = Y.Lang.isValue(defaultVal);
+          if (Y.Lang.isValue(value) && (!hasDefault || value !==  
defaultVal)) {
              serviceOptions[key] = value;
            }
          });
@@ -1190,6 +1190,10 @@
            serviceData.constraints = constraints;
          }

+        if (service.get('exposed')) {
+          serviceData.expose = true;
+        }
+
          // XXX: Only expose position. Currently these are position absolute
          // rather than relative.
          var anno = service.get('annotations');


Index: test/data/wp-deployer.yaml
=== modified file 'test/data/wp-deployer.yaml'
--- test/data/wp-deployer.yaml	2013-10-10 17:00:09 +0000
+++ test/data/wp-deployer.yaml	2013-10-23 05:17:56 +0000
@@ -9,8 +9,6 @@
          "block-size": "5"
          "dataset-size": "80%"
          flavor: distro
-        'gui-x': 50
-        'gui-y': 50
          "ha-bindiface": eth0
          "ha-mcastport": "5411"
          "max-connections": "-1"
@@ -31,13 +29,12 @@
        num_units: 2
        options:
          debug: "no"
-        engine: nginx
-        tuning: single
+        engine: apache
          "wp-content": ""
        annotations:
          "gui-x": 510
          "gui-y": 184
-      exposed: true
+      expose: true
    relations:
      - - "wordpress:db"
        - "mysql:db"


Index: app/store/env/fakebackend.js
=== modified file 'app/store/env/fakebackend.js'
--- app/store/env/fakebackend.js	2013-10-15 19:33:04 +0000
+++ app/store/env/fakebackend.js	2013-10-23 05:17:56 +0000
@@ -1368,9 +1368,9 @@
        var seen = [];

        /**
-        Helper to build out an inheritence chain
+        Helper to build out an inheritance chain

-        @method setupinheritance
+        @method setupInheritance
          @param {Object} base object currently being inspected.
          @param {Array} baseList chain of ancestors to later inherit.
          @param {Object} bundleData import data used to resolve ancestors.
@@ -1497,6 +1497,10 @@
          if (!serviceData.unitCount) {
            serviceData.unitCount = serviceData.num_units || 1;
          }
+        if (serviceData.options) {
+          serviceData.config = serviceData.options;
+          delete serviceData.options;
+        }
          servicePromises.push(
              self.promiseDeploy(serviceData.charm, serviceData));
        });
@@ -1530,7 +1534,7 @@
                }

                // Expose
-              if (serviceData.exposed) {
+              if (serviceData.expose) {
                  self.expose(serviceId);
                }