[#672] added danger for checking commits compliance

.gitlab-ci.yml

-
-
 variables:
   # Not normally needed, but may be if some script uses `apt-get install`.
   DEBIAN_FRONTEND: noninteractive
-# Locale settings do not affect the build, but might affect tests.
+  # Locale settings do not affect the build, but might affect tests.
   LC_ALL: C
 
   CI_REGISTRY_IMAGE: registry.gitlab.isc.org/isc-projects/images/bind9
 
-# Disabled warnings:
-# SC2039 - complains about local var: In POSIX sh, 'local' is undefined.
+  # Disabled warnings:
+  # SC2039 - complains about local var: In POSIX sh, 'local' is undefined.
   SHELLCHECK_OPTS: "--exclude=SC2039"
 
 stages:
@@ -19,6 +17,7 @@ shellcheck:
   stage: test
   image: "$CI_REGISTRY_IMAGE:debian-stretch-amd64"
   before_script:
+    - sudo apt-get update
     - sudo apt-get -y install shellcheck
   script:
     - SCRIPTS="src/bin/keactrl/keactrl.in "
@@ -27,3 +26,18 @@ shellcheck:
     - SCRIPTS+="tools/cql_config "
     - SCRIPTS+="tools/sysrepo_config "
     - shellcheck ${SCRIPTS} ${SHELLCHECK_OPTS}
+
+danger:
+  stage: test
+  image: registry.gitlab.isc.org/isc-projects/stork/ci-danger
+  before_script:
+    - export CI_MERGE_REQUEST_ID=$(git ls-remote -q origin merge-requests\*\head | grep $CI_COMMIT_SHA | sed 's/.*refs\/merge-requests\/\([0-9]*\)\/head/\1/g')
+    - export CI_PROJECT_PATH=$CI_PROJECT_ID #some version of gitlab has problems with searching by project path
+    - export DANGER_GITLAB_HOST=gitlab.isc.org
+    - export DANGER_GITLAB_API_BASE_URL=https://gitlab.isc.org/api/v4
+    - sysctl -w net.ipv6.conf.all.disable_ipv6=1
+    - sysctl -w net.ipv6.conf.default.disable_ipv6=1
+  script:
+    - echo '149.20.48.126 gitlab.isc.org' >> /etc/hosts
+    - gem install danger-commit_lint
+    - danger --fail-on-errors=true --new-comment

Dangerfile

+fail "Please provide a summary in the Merge Request description to help your colleagues to understand the MR purpose." if gitlab.mr_body.length < 5
+
+if git.modified_files.include? "Dangerfile"
+  warn "This MR modifies Dangerfile! Watch for the rules!"
+end
+
+# Checking MR size
+if not gitlab.mr_body.include?("#huge-sorry")
+  warn("Split the MR into separate ones. It's really big.") if git.lines_of_code > 3000
+  fail("Do not submit MRs over 5000 lines of code.") if git.lines_of_code > 5000
+end
+
+# Note when MRs don't reference a milestone, make the warning stick around on subsequent runs
+has_milestone = gitlab.mr_json["milestone"] != nil
+warn("This MR does not refer to an existing milestone", sticky: true) unless has_milestone
+
+# check commits' comments
+commit_lint.check warn: :all
+
+# check gitlab issue in commit message
+git.commits.each do |c|
+  m = c.message.match(/^\[\#(\d+)\]\ (.*)/)
+  if not m
+    warn "No GitLab issue in commit message: #{c}"
+    gl_issue_msg = nil
+  else
+    gl_issue_msg = m.captures[0]
+  end
+
+  mr_branch = gitlab.branch_for_head
+  m = mr_branch.match(/^(\d+).*/)
+  if not m
+    warn "Branch name does not start with GitLab issue: #{mr_branch}"
+    gl_issue_br = nil
+  else
+    gl_issue_br = m.captures[0]
+  end
+
+  if gl_issue_msg and gl_issue_br and gl_issue_msg != gl_issue_br
+    warn "GitLab issue ##{gl_issue_msg} in msg of commit #{c} and issue ##{gl_issue_br} from branch #{mr_branch} do not match"
+  end
+end