Cirrus: Simplify optional system-test script

Previously it was required to call the verify, unit, and integration
scripts in order to build/install dependencies, and libpod.  This
wastes time during the (optional) system-testing, since the
actual unit/integration testing is also happening in parallel.

Consolidate only the distribution-specific build steps into the
system-testing script.  This way, only the required steps are performed
in their respective (parallel) tasks.

Signed-off-by: Chris Evich <[email protected]>

.cirrus.yml

@@ -76,7 +76,7 @@ optional_system_testing_task:
     # later from OS distribution's build systems.
     only_if: >-
         $CIRRUS_BRANCH != 'master' &&
-        $CIRRUS_CHANGE_MESSAGE =~ '\*\*\*\s*CIRRUS:\s*SYSTEM\s*TEST\s*\*\*\*'
+        $CIRRUS_CHANGE_MESSAGE =~ '.*\*\*\*\s*CIRRUS:\s*SYSTEM\s*TEST\s*\*\*\*.*'
 
     gce_instance:
         matrix:
@@ -89,10 +89,7 @@ optional_system_testing_task:
     timeout_in: 60m
 
     setup_environment_script: $SCRIPT_BASE/setup_environment.sh
-    verify_source_script: $SCRIPT_BASE/verify_source.sh
-    unit_test_script: $SCRIPT_BASE/unit_test.sh
-    integration_test_script: $SCRIPT_BASE/integration_test.sh
-    system_test_script: $SCRIPT_BASE/optional_system_test.sh
+    system_test_script: $SCRIPT_BASE/system_test.sh
     success_script: $SCRIPT_BASE/success.sh
 
 
@@ -107,7 +104,7 @@ build_vm_images_task:
     # is present in the most recent commit-message.
     only_if: >-
         $CIRRUS_BRANCH == 'master' &&
-        $CIRRUS_CHANGE_MESSAGE =~ '\*\*\*\s*CIRRUS:\s*REBUILD\s*IMAGES\s*\*\*\*'
+        $CIRRUS_CHANGE_MESSAGE =~ '.*\*\*\*\s*CIRRUS:\s*REBUILD\s*IMAGES\s*\*\*\*.*'
 
     # Require tests to pass first.
     depends_on:

contrib/cirrus/system_test.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+set -e
+source $(dirname $0)/lib.sh
+
+req_env_var "
+GOSRC $GOSRC
+OS_RELEASE_ID $OS_RELEASE_ID
+OS_RELEASE_VER $OS_RELEASE_VER
+"
+
+show_env_vars
+
+set -x
+cd "$GOSRC"
+
+case "${OS_RELEASE_ID}-${OS_RELEASE_VER}" in
+    ubuntu-18)
+        make install.tools "BUILDTAGS=$BUILDTAGS"
+        make "BUILDTAGS=$BUILDTAGS"
+        make test-binaries "BUILDTAGS=$BUILDTAGS"
+        ;;
+    fedora-28) ;&
+    centos-7) ;&
+    rhel-7)
+        make install.tools
+        make
+        make test-binaries
+        ;;
+    *) bad_os_id_ver ;;
+esac
+
+make localsystem