Update release_docs task

From dynamo/dynamo

release_docs.exs

@@ -1,34 +1,14 @@
-# Run with mix run release_docs.exs
-
-# Uncommited changes will not be included!
-
-# Files that will be included in addition to the
-# ex_doc generated files
-additional_files = [
-  "README.html"
-]
-
-System.cmd "git stash -u"
+System.cmd "git clone --branch gh-pages `git config --get remote.origin.url` docs"
 
 Mix.Task.run "docs"
-files = Path.wildcard("docs/**") |> Enum.map(&Path.relative_to(&1, "docs"))
-files = files ++ additional_files
+# Enum.each(additional_files, &File.cp!(&1, Path.join("docs", &1)))
 
-IO.puts System.cmd "git checkout gh-pages"
+File.cd! "docs", fn ->
+  System.cmd "git add -A ."
+  System.cmd "git commit -m \"Updated docs\""
+  System.cmd "git push origin gh-pages"
+end
 
-System.cmd "git reset"
-
-old_files = System.cmd("git ls-files") |> String.split("\n")
-old_files = old_files -- additional_files
-IO.puts System.cmd "git rm " <> Enum.join(old_files, " ")
-
-File.cp_r "docs/.", "./"
 File.rm_rf! "docs"
 
-IO.puts System.cmd "git add " <> Enum.join(files, " ")
-IO.puts System.cmd "git commit -m \"Update docs\""
-IO.puts System.cmd "git push"
-
-Enum.each(files, &File.rm_rf!/1)
-IO.puts System.cmd "git checkout master --force"
-System.cmd "git stash pop"
+IO.puts IO.ANSI.escape("%{green}Updated docs pushed to origin/gh-pages")