Merge branch 'ci-and-ce-sitting-in-a-tree-k-i-s-s-i-n-g' into 'master'

Merge CI into CE

First step of #2164.

- [x] Merge latest CE master
- [x] Make application start
- [x] Re-use gitlab sessions (remove CI oauth part)
- [x] Get rid of gitlab_ci.yml config
- [x] Make tests start
- [x] Make most CI features works
- [x] Make tests green
- [x] Write migration documentation
- [x] Add CI builds to CE backup

See merge request !1204

1 files changed, 52 insertions, 0 deletions

diff --git a/lib/ci/version_info.rb b/lib/ci/version_info.rb
new file mode 100644
index 00000000000..2a87c91db5e
--- /dev/null
+++ b/lib/ci/version_info.rb
@@ -0,0 +1,52 @@
+class VersionInfo
+  include Comparable
+
+  attr_reader :major, :minor, :patch
+
+  def self.parse(str)
+    if str && m = str.match(/(\d+)\.(\d+)\.(\d+)/)
+      VersionInfo.new(m[1].to_i, m[2].to_i, m[3].to_i)
+    else
+      VersionInfo.new
+    end
+  end
+
+  def initialize(major = 0, minor = 0, patch = 0)
+    @major = major
+    @minor = minor
+    @patch = patch
+  end
+
+  def <=>(other)
+    return unless other.is_a? VersionInfo
+    return unless valid? && other.valid?
+
+    if other.major < @major
+      1
+    elsif @major < other.major
+      -1
+    elsif other.minor < @minor
+      1
+    elsif @minor < other.minor
+      -1
+    elsif other.patch < @patch
+      1
+    elsif @patch < other.patch
+      -1
+    else
+      0
+    end
+  end
+
+  def to_s
+    if valid?
+      "%d.%d.%d" % [@major, @minor, @patch]
+    else
+      "Unknown"
+    end
+  end
+
+  def valid?
+    @major >= 0 && @minor >= 0 && @patch >= 0 && @major + @minor + @patch > 0
+  end
+end