describe level Resolves #144 Wooooo

src/js/git/index.js

@@ -2421,7 +2421,7 @@ GitEngine.prototype.describe = function(ref) {
 
   // then join
   throw new CommandResult({
-    msg: foundTag + '_' + numAway.length + '_g' + numAway.pop()
+    msg: foundTag + '_' + numAway.length + '_g' + startCommit.get('id')
   });
 };
 

src/levels/index.js

@@ -21,7 +21,8 @@ exports.levelSequences = {
     require('./mixed/grabbingOneCommit').level,
     require('./mixed/jugglingCommits').level,
     require('./mixed/jugglingCommits2').level,
-    require('./mixed/tags').level
+    require('./mixed/tags').level,
+    require('./mixed/describe').level
   ],
   advanced: [
     require('./rebase/manyRebases').level,

src/levels/mixed/describe.js

@@ -0,0 +1,76 @@
+exports.level = {
+  "goalTreeString": "{\"branches\":{\"master\":{\"target\":\"C2\",\"id\":\"master\",\"remoteTrackingBranchID\":null},\"side\":{\"target\":\"C4\",\"id\":\"side\",\"remoteTrackingBranchID\":null},\"bugFix\":{\"target\":\"C7\",\"id\":\"bugFix\",\"remoteTrackingBranchID\":null}},\"commits\":{\"C0\":{\"parents\":[],\"id\":\"C0\",\"rootCommit\":true},\"C1\":{\"parents\":[\"C0\"],\"id\":\"C1\"},\"C2\":{\"parents\":[\"C1\"],\"id\":\"C2\"},\"C3\":{\"parents\":[\"C1\"],\"id\":\"C3\"},\"C4\":{\"parents\":[\"C3\"],\"id\":\"C4\"},\"C5\":{\"parents\":[\"C3\"],\"id\":\"C5\"},\"C6\":{\"parents\":[\"C5\"],\"id\":\"C6\"},\"C7\":{\"parents\":[\"C6\"],\"id\":\"C7\"}},\"tags\":{\"v0\":{\"target\":\"C0\",\"id\":\"v0\",\"type\":\"tag\"},\"v1\":{\"target\":\"C3\",\"id\":\"v1\",\"type\":\"tag\"}},\"HEAD\":{\"target\":\"bugFix\",\"id\":\"HEAD\"}}",
+  "solutionCommand": "git commit ",
+  "startTree": "{\"branches\":{\"master\":{\"target\":\"C2\",\"id\":\"master\",\"remoteTrackingBranchID\":null},\"side\":{\"target\":\"C4\",\"id\":\"side\",\"remoteTrackingBranchID\":null},\"bugFix\":{\"target\":\"C6\",\"id\":\"bugFix\",\"remoteTrackingBranchID\":null}},\"commits\":{\"C0\":{\"parents\":[],\"id\":\"C0\",\"rootCommit\":true},\"C1\":{\"parents\":[\"C0\"],\"id\":\"C1\"},\"C2\":{\"parents\":[\"C1\"],\"id\":\"C2\"},\"C3\":{\"parents\":[\"C1\"],\"id\":\"C3\"},\"C4\":{\"parents\":[\"C3\"],\"id\":\"C4\"},\"C5\":{\"parents\":[\"C3\"],\"id\":\"C5\"},\"C6\":{\"parents\":[\"C5\"],\"id\":\"C6\"}},\"tags\":{\"v0\":{\"target\":\"C0\",\"id\":\"v0\",\"type\":\"tag\"},\"v1\":{\"target\":\"C3\",\"id\":\"v1\",\"type\":\"tag\"}},\"HEAD\":{\"target\":\"bugFix\",\"id\":\"HEAD\"}}",
+  "name": {
+    "en_US": "Git Describe"
+  },
+  "hint": {
+    "en_US": "Just commit once on bugFix when you're ready to move on"
+  },
+  "startDialog": {
+    "en_US": {
+      "childViews": [
+        {
+          "type": "ModalAlert",
+          "options": {
+            "markdowns": [
+              "### Git Describe",
+              "",
+              "Because tags serve as such great \"anchors\" in the codebase, git has a command to *describe* where you are relative to the closest "anchor" (aka tag). And that command is called `git describe`!",
+              "",
+              "Git describe can help you get your bearings after you've moved many commits backwards or forwards in history; this can happen after you've completed a git bisect (a debugging search) or when sitting down at a coworkers computer who just got back from vacation."
+            ]
+          }
+        },
+        {
+          "type": "ModalAlert",
+          "options": {
+            "markdowns": [
+              "Git describe takes the form of:",
+              "",
+              "`git describe <ref>`",
+              "",
+              "Where `<ref>` is anything git can resolve into a commit. If you don't specify a ref, git just uses where you're checked out right now (`HEAD`).",
+              "",
+              "The output of the command looks like:",
+              "",
+              "`<tag>_<numCommits>_g<hash>`",
+              "",
+              "Where `tag` is the closest ancestor tag in history, `numCommits` is how many commits away that tag is, and `<hash>` is the hash of the commit being described."
+            ]
+          }
+        },
+        {
+          "type": "GitDemonstrationView",
+          "options": {
+            "beforeMarkdowns": [
+              "Let's look at a quick example. For this tree below:"
+            ],
+            "afterMarkdowns": [
+              "The command `git describe master` would output:",
+              "",
+              "`v1_2_gC2`",
+              "",
+              "Whereas `git describe side` would output:",
+              "",
+              "`v2_1_gC4`"
+            ],
+            "command": "git tag v2 C3",
+            "beforeCommand": "git commit; go -b side HEAD~1; gc; gc; git tag v1 C0"
+          }
+        },
+        {
+          "type": "ModalAlert",
+          "options": {
+            "markdowns": [
+              "That's pretty much all there is to git describe! Try describing a few of the locations in this level to get a feel for the command.",
+              "",
+              "Once you're ready, just go ahead and commit once to finish the level. We're giving you a freebie :P"
+            ]
+          }
+        }
+      ]
+    }
+  }
+};