Wrote some Snapshot code.

services/git-bridge/.idea/workspace.xml

@@ -7,10 +7,9 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="0c822a5a-f421-4f3c-b941-5c2809c4546f" name="Default" comment="">
-      <change type="MOVED" beforePath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java" afterPath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java" />
+      <change type="MOVED" beforePath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java" afterPath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java" afterPath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/handler/WLRepositoryResolver.java" afterPath="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/handler/WLRepositoryResolver.java" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/build.xml" afterPath="$PROJECT_DIR$/build.xml" />
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
     </list>
     <ignored path="writelatex-git-bridge.iws" />
@@ -34,101 +33,101 @@
   </component>
   <component name="FileEditorManager">
     <leaf>
-      <file leaf-file-name="WLGitServlet.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java">
+      <file leaf-file-name="Main.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/Main.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="465">
-              <caret line="18" column="108" selection-start-line="18" selection-start-column="108" selection-end-line="18" selection-end-column="108" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="300">
+              <caret line="7" column="13" selection-start-line="7" selection-start-column="13" selection-end-line="7" selection-end-column="13" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="build.xml" pinned="false" current="true" current-in-tab="true">
+      <file leaf-file-name="build.xml" pinned="false" current="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/build.xml">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.82051283" vertical-offset="3780" max-vertical-offset="4365">
-              <caret line="284" column="30" selection-start-line="284" selection-start-column="30" selection-end-line="284" selection-end-column="30" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="3780" max-vertical-offset="4365">
+              <caret line="281" column="70" selection-start-line="281" selection-start-column="70" selection-end-line="281" selection-end-column="70" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="Main.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/Main.java">
+      <file leaf-file-name="SnapshotRepositorySource.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="105" max-vertical-offset="300">
-              <caret line="7" column="13" selection-start-line="7" selection-start-column="13" selection-end-line="7" selection-end-column="13" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="45" max-vertical-offset="630">
+              <caret line="31" column="35" selection-start-line="31" selection-start-column="35" selection-end-line="31" selection-end-column="35" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="WLRepositoryResolver.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/handler/WLRepositoryResolver.java">
+      <file leaf-file-name="SnapshotRepositoryBuilder.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="120" max-vertical-offset="750">
-              <caret line="24" column="49" selection-start-line="24" selection-start-column="49" selection-end-line="24" selection-end-column="49" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="30" max-vertical-offset="705">
+              <caret line="17" column="35" selection-start-line="17" selection-start-column="35" selection-end-line="17" selection-end-column="35" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="RepositorySource.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/bridge/RepositorySource.java">
+      <file leaf-file-name="DummySnapshotAPI.java" pinned="false" current="true" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotAPI.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="315">
-              <caret line="12" column="74" selection-start-line="12" selection-start-column="74" selection-end-line="12" selection-end-column="74" />
+            <state vertical-scroll-proportion="0.451505" vertical-offset="0" max-vertical-offset="598">
+              <caret line="18" column="4" selection-start-line="18" selection-start-column="4" selection-end-line="18" selection-end-column="4" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="WLGitBridgeApplication.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/application/WLGitBridgeApplication.java">
+      <file leaf-file-name="SnapshotAPI.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotAPI.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="225" max-vertical-offset="1290">
-              <caret line="24" column="96" selection-start-line="24" selection-start-column="96" selection-end-line="24" selection-end-column="96" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="285">
+              <caret line="10" column="31" selection-start-line="10" selection-start-column="31" selection-end-line="10" selection-end-column="31" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="WLGitBridgeServer.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/application/WLGitBridgeServer.java">
+      <file leaf-file-name="DummySnapshotDBAPI.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotDBAPI.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="554" max-vertical-offset="1185">
-              <caret line="53" column="9" selection-start-line="53" selection-start-column="9" selection-end-line="53" selection-end-column="9" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="435">
+              <caret line="17" column="9" selection-start-line="17" selection-start-column="9" selection-end-line="17" selection-end-column="9" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="SnapshotRepositoryBuilder.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java">
+      <file leaf-file-name="Snapshot.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/Snapshot.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="570">
-              <caret line="13" column="38" selection-start-line="13" selection-start-column="38" selection-end-line="13" selection-end-column="38" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="195">
+              <caret line="5" column="13" selection-start-line="5" selection-start-column="13" selection-end-line="5" selection-end-column="13" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="SnapshotRepositoryBuilderTests.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/writelatex/SnapshotRepositoryBuilderTests.java">
+      <file leaf-file-name="SnapshotDBAPI.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotDBAPI.java">
           <provider selected="true" editor-type-id="text-editor">
             <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="315">
-              <caret line="11" column="0" selection-start-line="11" selection-start-column="0" selection-end-line="11" selection-end-column="0" />
+              <caret line="13" column="0" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
               <folding />
             </state>
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="InvalidRootDirectoryPathException.java" pinned="false" current="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/exception/InvalidRootDirectoryPathException.java">
+      <file leaf-file-name="RepositoryBuilder.java" pinned="false" current="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/RepositoryBuilder.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="195">
-              <caret line="5" column="13" selection-start-line="5" selection-start-column="13" selection-end-line="5" selection-end-column="13" />
+            <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="285">
+              <caret line="11" column="0" selection-start-line="11" selection-start-column="0" selection-end-line="11" selection-end-column="0" />
               <folding />
             </state>
           </provider>
@@ -147,14 +146,6 @@
   <component name="IdeDocumentHistory">
     <option name="changedFiles">
       <list>
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/WriteLatexRepositoryResolver.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/WLRepositoryResolver.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/WriteLatexUploadPackFactory.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/WLUploadPackFactory.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/WLProjectGitServlet.java" />
-        <option value="$PROJECT_DIR$/test/uk/ac/ic/test/WriteLatexGitBridgeServerTests.java" />
-        <option value="$PROJECT_DIR$/test/uk/ac/ic/test/WLGitBridgeServerTests.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/WLGitServlet.java" />
         <option value="$PROJECT_DIR$/src/uk/ac/ic/WLGitBridgeServer.java" />
         <option value="$PROJECT_DIR$/src/uk/ac/ic/Main.java" />
         <option value="$PROJECT_DIR$/src/uk/ac/ic/WLGitBridgeApplication.java" />
@@ -194,10 +185,18 @@
         <option value="$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/git/exception/InvalidRootDirectoryPathException.java" />
         <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java" />
         <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/handler/WLRepositoryResolver.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java" />
-        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java" />
         <option value="$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/writelatex/SnapshotRepositoryBuilderTests.java" />
         <option value="$PROJECT_DIR$/build.xml" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/RepositoryBuilder.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotAPIFacade.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotAPIFacade.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/Snapshot.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotDBAPI.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotDBAPI.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotAPI.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java" />
+        <option value="$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotAPI.java" />
       </list>
     </option>
   </component>
@@ -781,13 +780,13 @@
       <recent name="uk.ac.ic.wlgitbridge.application" />
       <recent name="uk.ac.ic.wlgitbridge.git" />
     </key>
-    <key name="MoveFile.RECENT_KEYS">
-      <recent name="$PROJECT_DIR$/libs" />
-    </key>
     <key name="MoveClassesOrPackagesDialog.RECENTS_KEY">
       <recent name="uk.ac.ic.wlgitbridge" />
       <recent name="uk.ac.ic" />
     </key>
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/libs" />
+    </key>
   </component>
   <component name="RunManager" selected="Application.writelatex-git-bridge">
     <configuration default="true" type="#org.jetbrains.idea.devkit.run.PluginConfigurationType" factoryName="Plugin">
@@ -1069,57 +1068,6 @@
     </buildFile>
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/git/handler/WLUploadPackTests.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="195" max-vertical-offset="315">
-          <caret line="13" column="0" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/MainTests.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="225" max-vertical-offset="315">
-          <caret line="15" column="0" selection-start-line="15" selection-start-column="0" selection-end-line="15" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/application/WLGitBridgeApplication.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="345" max-vertical-offset="480">
-          <caret line="23" column="5" selection-start-line="23" selection-start-column="5" selection-end-line="23" selection-end-column="5" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="240" max-vertical-offset="390">
-          <caret line="16" column="48" selection-start-line="16" selection-start-column="48" selection-end-line="16" selection-end-column="48" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/application/WLGitBridgeApplicationTests.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="195" max-vertical-offset="315">
-          <caret line="13" column="0" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/application/WLGitBridgeServerTests.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="105" max-vertical-offset="315">
-          <caret line="7" column="37" selection-start-line="7" selection-start-column="37" selection-end-line="12" selection-end-column="5" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/git/WLGitServletTests.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="195" max-vertical-offset="315">
-          <caret line="13" column="0" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/git/WLGitServletConfigTests.java">
       <provider selected="true" editor-type-id="text-editor">
         <state vertical-scroll-proportion="0.0" vertical-offset="195" max-vertical-offset="315">
@@ -1373,14 +1321,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/Main.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="300">
-          <caret line="7" column="13" selection-start-line="7" selection-start-column="13" selection-end-line="7" selection-end-column="13" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/exception/InvalidRootDirectoryPathException.java">
       <provider selected="true" editor-type-id="text-editor">
         <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="195">
@@ -1408,7 +1348,7 @@
     <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java">
       <provider selected="true" editor-type-id="text-editor">
         <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="465">
-          <caret line="18" column="108" selection-start-line="18" selection-start-column="108" selection-end-line="18" selection-end-column="108" />
+          <caret line="18" column="107" selection-start-line="18" selection-start-column="107" selection-end-line="18" selection-end-column="107" />
           <folding />
         </state>
       </provider>
@@ -1429,26 +1369,90 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java">
+    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/writelatex/SnapshotRepositoryBuilderTests.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="570">
-          <caret line="13" column="38" selection-start-line="13" selection-start-column="38" selection-end-line="13" selection-end-column="38" />
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="315">
+          <caret line="11" column="0" selection-start-line="11" selection-start-column="0" selection-end-line="11" selection-end-column="0" />
           <folding />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/test/uk/ac/ic/wlgitbridge/test/writelatex/SnapshotRepositoryBuilderTests.java">
+    <entry file="file://$PROJECT_DIR$/build.xml">
       <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="315">
+        <state vertical-scroll-proportion="0.0" vertical-offset="3780" max-vertical-offset="4365">
+          <caret line="281" column="70" selection-start-line="281" selection-start-column="70" selection-end-line="281" selection-end-column="70" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/Main.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="300">
+          <caret line="7" column="13" selection-start-line="7" selection-start-column="13" selection-end-line="7" selection-end-column="13" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/RepositoryBuilder.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="15" max-vertical-offset="285">
           <caret line="11" column="0" selection-start-line="11" selection-start-column="0" selection-end-line="11" selection-end-column="0" />
           <folding />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/build.xml">
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/Snapshot.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="195">
+          <caret line="5" column="13" selection-start-line="5" selection-start-column="13" selection-end-line="5" selection-end-column="13" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotDBAPI.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="435">
+          <caret line="17" column="9" selection-start-line="17" selection-start-column="9" selection-end-line="17" selection-end-column="9" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="45" max-vertical-offset="630">
+          <caret line="31" column="35" selection-start-line="31" selection-start-column="35" selection-end-line="31" selection-end-column="35" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotAPI.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="285">
+          <caret line="10" column="31" selection-start-line="10" selection-start-column="31" selection-end-line="10" selection-end-column="31" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotDBAPI.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="315">
+          <caret line="13" column="0" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="30" max-vertical-offset="705">
+          <caret line="17" column="35" selection-start-line="17" selection-start-column="35" selection-end-line="17" selection-end-column="35" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotAPI.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.82051283" vertical-offset="3780" max-vertical-offset="4365">
-          <caret line="284" column="30" selection-start-line="284" selection-start-column="30" selection-end-line="284" selection-end-column="30" />
+        <state vertical-scroll-proportion="0.451505" vertical-offset="0" max-vertical-offset="598">
+          <caret line="18" column="4" selection-start-line="18" selection-start-column="4" selection-end-line="18" selection-end-column="4" />
           <folding />
         </state>
       </provider>

services/git-bridge/src/uk/ac/ic/wlgitbridge/git/WLGitServlet.java

@@ -6,7 +6,7 @@ import uk.ac.ic.wlgitbridge.git.exception.InvalidRootDirectoryPathException;
 import uk.ac.ic.wlgitbridge.git.handler.WLReceivePackFactory;
 import uk.ac.ic.wlgitbridge.git.handler.WLRepositoryResolver;
 import uk.ac.ic.wlgitbridge.git.handler.WLUploadPackFactory;
-import uk.ac.ic.wlgitbridge.writelatex.SnapshotRepositoryBuilder;
+import uk.ac.ic.wlgitbridge.writelatex.SnapshotRepositorySource;
 
 import javax.servlet.ServletException;
 
@@ -16,7 +16,7 @@ import javax.servlet.ServletException;
 public class WLGitServlet extends GitServlet {
 
     public WLGitServlet(ServletContextHandler servletContextHandler, String rootGitDirectoryPath) throws ServletException, InvalidRootDirectoryPathException {
-        setRepositoryResolver(new WLRepositoryResolver(rootGitDirectoryPath, new SnapshotRepositoryBuilder()));
+        setRepositoryResolver(new WLRepositoryResolver(rootGitDirectoryPath, new SnapshotRepositorySource()));
         setReceivePackFactory(new WLReceivePackFactory());
         setUploadPackFactory(new WLUploadPackFactory());
         init(new WLGitServletConfig(servletContextHandler));

services/git-bridge/src/uk/ac/ic/wlgitbridge/git/handler/WLRepositoryResolver.java

@@ -8,7 +8,7 @@ import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
 import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
 import uk.ac.ic.wlgitbridge.git.exception.InvalidRootDirectoryPathException;
 import uk.ac.ic.wlgitbridge.bridge.RepositorySource;
-import uk.ac.ic.wlgitbridge.writelatex.SnapshotRepositoryBuilder;
+import uk.ac.ic.wlgitbridge.writelatex.SnapshotRepositorySource;
 
 import javax.servlet.http.HttpServletRequest;
 import java.io.File;
@@ -21,7 +21,7 @@ public class WLRepositoryResolver implements RepositoryResolver<HttpServletReque
     private File rootGitDirectory;
     private RepositorySource repositorySource;
 
-    public WLRepositoryResolver(String rootGitDirectoryPath, SnapshotRepositoryBuilder repositorySource) throws InvalidRootDirectoryPathException {
+    public WLRepositoryResolver(String rootGitDirectoryPath, SnapshotRepositorySource repositorySource) throws InvalidRootDirectoryPathException {
         this.repositorySource = repositorySource;
         initRootGitDirectory(rootGitDirectoryPath);
     }

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotAPI.java

@@ -0,0 +1,20 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+import java.util.List;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public class DummySnapshotAPI implements SnapshotAPI {
+
+    @Override
+    public List<Snapshot> getSnapshots() {
+        return null;
+    }
+
+    @Override
+    public void putSnapshots(List<Snapshot> snapshots) {
+
+    }
+    
+}

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/DummySnapshotDBAPI.java

@@ -0,0 +1,23 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+import org.eclipse.jgit.lib.Repository;
+
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public class DummySnapshotDBAPI implements SnapshotDBAPI {
+
+    @Override
+    public boolean repositoryExists(Repository repository) {
+        return false;
+    }
+
+    @Override
+    public List<Snapshot> getSnapshotsToAddToRepository(Repository repository) {
+        return new LinkedList<Snapshot>();
+    }
+
+}

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/RepositoryBuilder.java

@@ -0,0 +1,13 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+import org.eclipse.jgit.errors.RepositoryNotFoundException;
+import org.eclipse.jgit.lib.Repository;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public interface RepositoryBuilder {
+
+    public void buildRepository(Repository repository) throws RepositoryNotFoundException;
+
+}

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/Snapshot.java

@@ -0,0 +1,7 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public class Snapshot {
+}

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotAPI.java

@@ -0,0 +1,13 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+import java.util.List;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public interface SnapshotAPI {
+
+    public List<Snapshot> getSnapshots();
+    public void putSnapshots(List<Snapshot> snapshots);
+
+}

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotDBAPI.java

@@ -0,0 +1,15 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+import org.eclipse.jgit.lib.Repository;
+
+import java.util.List;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public interface SnapshotDBAPI {
+
+    public boolean repositoryExists(Repository repository);
+    public List<Snapshot> getSnapshotsToAddToRepository(Repository repository);
+
+}

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositoryBuilder.java

@@ -2,31 +2,40 @@ package uk.ac.ic.wlgitbridge.writelatex;
 
 import org.eclipse.jgit.errors.RepositoryNotFoundException;
 import org.eclipse.jgit.lib.Repository;
-import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
-import uk.ac.ic.wlgitbridge.bridge.RepositorySource;
 
-import java.io.File;
-import java.io.IOException;
+import java.util.List;
 
 /**
  * Created by Winston on 03/11/14.
  */
-public class SnapshotRepositoryBuilder implements RepositorySource {
+public class SnapshotRepositoryBuilder implements RepositoryBuilder {
+
+    private SnapshotDBAPI snapshotDBAPI;
+    private SnapshotAPI snapshotAPI;
+
+    public SnapshotRepositoryBuilder() {
+        snapshotDBAPI = new DummySnapshotDBAPI();
+        snapshotAPI = new DummySnapshotAPI();
+    }
 
     @Override
-    public Repository getRepositoryWithNameAtRootDirectory(String name, File rootDirectory) throws RepositoryNotFoundException {
-        File repositoryRoot = new File(rootDirectory.getAbsolutePath(), name);
-
-        Repository repository = null;
-        try {
-            repository = new FileRepositoryBuilder().setWorkTree(repositoryRoot).build();
-        } catch (IOException e) {
-            throw new RepositoryNotFoundException(name);
+    public void buildRepository(Repository repository) throws RepositoryNotFoundException {
+        if (repository.getObjectDatabase().exists()) {
+            updateRepositoryFromSnapshots(repository);
+        } else {
+            buildRepositoryFromScratch(repository);
         }
-        if (!repository.getObjectDatabase().exists()) {
-            throw new RepositoryNotFoundException(name);
+    }
+
+    private void updateRepositoryFromSnapshots(Repository repository) {
+        List<Snapshot> snapshotsToAdd = snapshotDBAPI.getSnapshotsToAddToRepository(repository);
+    }
+
+    private void buildRepositoryFromScratch(Repository repository) throws RepositoryNotFoundException {
+        if (!snapshotDBAPI.repositoryExists(repository)) {
+            throw new RepositoryNotFoundException(repository.getDirectory());
         }
-        return repository;
+        updateRepositoryFromSnapshots(repository);
     }
 
 }

services/git-bridge/src/uk/ac/ic/wlgitbridge/writelatex/SnapshotRepositorySource.java

@@ -0,0 +1,36 @@
+package uk.ac.ic.wlgitbridge.writelatex;
+
+import org.eclipse.jgit.errors.RepositoryNotFoundException;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
+import uk.ac.ic.wlgitbridge.bridge.RepositorySource;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * Created by Winston on 03/11/14.
+ */
+public class SnapshotRepositorySource implements RepositorySource {
+
+    private RepositoryBuilder repositoryBuilder;
+
+    public SnapshotRepositorySource() {
+        repositoryBuilder = new SnapshotRepositoryBuilder();
+    }
+
+    @Override
+    public Repository getRepositoryWithNameAtRootDirectory(String name, File rootDirectory) throws RepositoryNotFoundException {
+        File repositoryDirectory = new File(rootDirectory.getAbsolutePath(), name);
+
+        Repository repository = null;
+        try {
+            repository = new FileRepositoryBuilder().setWorkTree(repositoryDirectory).build();
+        } catch (IOException e) {
+            throw new RepositoryNotFoundException(name);
+        }
+        repositoryBuilder.buildRepository(repository);
+        return repository;
+    }
+
+}