Add CI

Some small changes to make the test suite behave with SalsaCI were
required:

contrib/docker/Makefile:
  - The "run" target now runs docker-compose detached.
  - The "tests" target does not need to run interactively.

contrib/docker/scripts/run-tests:
  - We need to run only the CI tests here, otherwise
    producesReferenceDb times out.

.gitmodules:
  - Switch from SSH to HTTPS for submodule cloning. SSH connections were
    not working on my tests.

.gitlab-ci.yml

@@ -0,0 +1,16 @@
+variables:
+  GIT_SUBMODULE_STRATEGY: recursive
+
+build:
+  image: docker:latest
+  stage: build
+  services:
+    - docker:dind
+  before_script:
+    - apk add docker-compose make
+  script:
+    - cd contrib/docker
+    - make build
+    - make update-db
+    - make run
+    - make tests

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "testdata"]
 	path = testdata
-	url = git@salsa.debian.org:qa/debsources-testdata.git
+	url = https://salsa.debian.org/qa/debsources-testdata.git
 [submodule "archvsync"]
 	path = archvsync
 	url = https://ftp-master.debian.org/git/archvsync.git

contrib/docker/Makefile

@@ -7,7 +7,7 @@ update-db:
 	docker-compose run debsources /opt/db-update
 
 run:
-	docker-compose up
+	docker-compose up -d
 
 start-apache:
 	docker exec -it docker_debsources_1 apache2ctl start
@@ -16,4 +16,4 @@ attach:
 	docker exec -it docker_debsources_1 /bin/bash
 
 tests:
-	docker exec -it docker_debsources_1 /opt/run-tests
+	docker exec docker_debsources_1 /opt/run-tests

contrib/docker/scripts/run-tests

@@ -1,3 +1,5 @@
 #!/bin/bash
 /opt/db-init
-nosetests3 -v /opt/debsources/lib/debsources/tests/
+
+cd /opt/debsources
+make test-travis