Added new Merge Conflicts level

Author: benthayer

gitgud/skills/__init__.py

@@ -4,6 +4,7 @@
 from gitgud.skills.rework import skill as rework_skill
 from gitgud.skills.mixedbag import skill as mixedbag_skill
 from gitgud.skills.extras import skill as extras_skill
+from gitgud.skills.new_basics import skill as new_basics_skill
 
 from gitgud.skills.util import AllSkills
 
@@ -13,7 +14,8 @@
     rampup_skill,
     rework_skill,
     mixedbag_skill,
-    extras_skill
+    extras_skill,
+    new_basics_skill
 ])
 
 all_levels = []

gitgud/skills/level_builder.py

@@ -93,16 +93,20 @@ def file(self, path):
     def cat_file(self, path):
         cat_file(self.file(path))
 
+    def details(self):
+        details_path = self.file('details.yaml')
+        if details_path.is_file():
+            with open(details_path) as details_file:
+                return yaml.safe_load(details_file)
+        else:
+            return None
+
     def _setup(self):
         file_operator = operations.get_operator()
         file_operator.use_repo()
         commits, head = parse_spec(self.file('setup.spec'))
 
-        details_path = self.file('details.yaml')
-        if details_path.is_file():
-            details = yaml.safe_load(details_path.open())
-        else:
-            details = None
+        details = self.details()
 
         file_operator.create_tree(commits, head, details, self.level_dir)
 

gitgud/skills/newbasics/__init__.py

@@ -0,0 +1,32 @@
+from gitgud import operations
+from gitgud.skills.level_builder import BasicLevel
+from gitgud.skills.util import Skill
+
+
+class MergeConflicts(BasicLevel):
+    def _test(self):
+        if not super()._test():
+            return False
+
+        op = operations.get_operator()
+        tree = op.repo.head.commit.tree
+        merge_details = self.details()['M1']['files']
+
+        for blob in tree.blobs:
+            path = blob.path
+            content = merge_details[path][0]
+            blob_content = blob.data_stream.read().decode('ascii')
+
+            if content.strip() != blob_content.strip():
+                return False
+
+        return True
+
+
+skill = Skill(
+    'Placeholder',
+    'newbasics',
+    [
+        MergeConflicts('Merge Conflicts', 'conflicts', __name__)
+    ]
+)

gitgud/skills/newbasics/_conflicts/details.yaml

@@ -0,0 +1,26 @@
+'1':
+  message: "Added intro"
+  files:
+    intro.txt:
+      - Once upon a time, there was a princess
+'3':
+  message: "Added middle"
+  add-files:
+    middle.txt:
+      - She lived a fulfilling life
+'2':
+  message: "Added ending"
+  add-files:
+    middle.txt:
+      - She lived
+    ending.txt:
+      - And then she died
+'M1':
+  message: "Merge branch 'ending' into master"
+  files:
+    intro.txt:
+      - Once upon a time, there was a princess
+    middle.txt:
+      - She lived a fulfilling life
+    ending.txt:
+      - And then she died

gitgud/skills/newbasics/_conflicts/explanation.txt

@@ -0,0 +1,3 @@
+Use this file to explain to the users how to use the git feature that this level focuses on.
+>>>
+Separate blocks using ">>>", and be sure to include tips and examples as explanation aids.

gitgud/skills/newbasics/_conflicts/filename.txt

@@ -0,0 +1,4 @@
+Hey, this file is getting added by details.yaml to commit 4!
+
+All this content will be copied exactly as it appears here, even with extra blank lines at the end of the file!
+

gitgud/skills/newbasics/_conflicts/goal.txt

@@ -0,0 +1 @@
+In this file, write a short explanation of the level's goal (e.g. "Merge commits 1 and 2").

gitgud/skills/newbasics/_conflicts/setup.spec

@@ -0,0 +1,4 @@
+1
+2 (master)
+3 : 1 (other)
+master

gitgud/skills/newbasics/_conflicts/solution.txt

@@ -0,0 +1,4 @@
+git merge other
+echo "She lived a fulfilling life" > middle.txt
+git add middle.txt
+git commit --no-edit

gitgud/skills/newbasics/_conflicts/test.spec

@@ -0,0 +1,5 @@
+1
+2
+3 : 1 (other)
+M1 : 2 3 (master)
+master