introduce function for notifying github

consumer-test/integrationTestController.sh

@@ -1,5 +1,29 @@
 #!/bin/bash
 
+function fail() {
+    local message="$1"
+    local returnCode=${2:-1}
+    echo "[ERROR] ${message}" >&2
+    exit ${returnCode}
+}
+
+function notify() {
+
+    local state=${1}
+    local description=${2}
+    local hash=${3}
+
+    echo "[INFO] Notifying about state \"${state}\" for commit \"${hash}\"."
+
+    curl -X POST \
+        --fail \
+        --silent \
+        --output /dev/null \
+        --data "{\"state\": \"${state}\", \"target_url\": \"${TRAVIS_BUILD_WEB_URL}\", \"description\": \"${description}\", \"context\": \"integration-tests\"}" \
+        --user "${INTEGRATION_TEST_VOTING_USER}:${INTEGRATION_TEST_VOTING_TOKEN}" \
+    "https://api.github.com/repos/SAP/jenkins-library/statuses/${hash}" || fail "Cannot send notification. curl return code: $?"
+}
+
 #
 # In case the build is performed for a pull request TRAVIS_COMMIT is a merge
 # commit between the base branch and the PR branch HEAD. That commit is actually built.
@@ -14,19 +38,20 @@
 COMMIT_HASH_FOR_STATUS_NOTIFICATIONS="${TRAVIS_PULL_REQUEST_SHA}"
 [ -z "${COMMIT_HASH_FOR_STATUS_NOTIFICATIONS}" ] && COMMIT_HASH_FOR_STATUS_NOTIFICATIONS="${TRAVIS_COMMIT}"
 
-curl -X POST \
-    --data "{\"state\": \"pending\", \"target_url\": \"${TRAVIS_BUILD_WEB_URL}\", \"description\": \"Integration tests pending.\", \"context\": \"integration-tests\"}" \
-    --user "${INTEGRATION_TEST_VOTING_USER}:${INTEGRATION_TEST_VOTING_TOKEN}" \
-    "https://api.github.com/repos/SAP/jenkins-library/statuses/${COMMIT_HASH_FOR_STATUS_NOTIFICATIONS}"
+notify "pending" "Integration tests in progress." "${COMMIT_HASH_FOR_STATUS_NOTIFICATIONS}"
 
 WORKSPACES_ROOT=workspaces
 [ -e "${WORKSPACES_ROOT}"  ] && rm -rf ${WORKSPACES_ROOT}
 
 TEST_CASES=$(find testCases -name '*.yml')
 
+# This auxiliar thread is needed in order to produce some output while the
+# test are running. Otherwise the job will be canceled after 10 minutes without
+# output.
 while true; do sleep 10; echo "[INFO] Integration tests still running."; done &
 notificationThreadPid=$!
 
+declare -a processes
 i=0
 for f in ${TEST_CASES}
 do
@@ -35,7 +60,7 @@ do
     echo "[INFO] Running test case \"${testCase}\" in area \"${area}\"."
     TEST_CASE_ROOT="${WORKSPACES_ROOT}/${area}/${testCase}"
     [ -e "${TEST_CASE_ROOT}" ] && rm -rf "${TEST_CASE_ROOT}"
-    mkdir -p "${TEST_CASE_ROOT}"
+    mkdir -p "${TEST_CASE_ROOT}" || fail "Cannot create test case root director for test case \"${testCase}\"." 1
     source ./runTest.sh "${testCase}" "${TEST_CASE_ROOT}" &> "${TEST_CASE_ROOT}/log.txt" &
     pid=$!
     processes[$i]="${testCase}:${pid}"
@@ -43,7 +68,7 @@ do
     let i=i+1
 done
 
-[ "${i}" == 0 ] && { echo "No tests has been executed."; exit 1;  }
+[ "${i}" == 0 ] && fail "No tests has been executed." 1
 
 #
 # wait for the test cases and cat the log
@@ -63,7 +88,6 @@ kill -PIPE "${notificationThreadPid}" &>/dev/null
 for p in "${processes[@]}"
 do
     testCase=${p%:*}
-    processId=${p#*:}
     echo "[INFO] === START === Logs for test case \"${testCase}\" ===."
     cat "${TEST_CASE_ROOT}/log.txt"
     echo "[INFO] === END === Logs for test case \"${testCase}\" ===."
@@ -84,30 +108,21 @@ do
         status="FAILURE"
         failure="true"
     fi
-    printf "[INFO] %-30s: %s\n" "${testCase}" ${status}
+    printf "[INFO] %-30s: %s\n" "${testCase}" "${status}"
 done
 
 STATUS_DESCRIPTION="The integration tests failed."
 STATUS_STATE="failure"
 
-if [ "${failure}" == "true" ]
+if [ "${failure}" == "false" ]
 then
-    echo "[WARNING] There are test failures. Check earlier log for details."
-else
     STATUS_DESCRIPTION="The integration tests succeeded."
     STATUS_STATE="success"
 fi
 
+notify "${STATUS_STATE}" "${STATUS_DESCRIPTION}" "${COMMIT_HASH_FOR_STATUS_NOTIFICATIONS}"
+
+[ "${failure}" != "false" ] && fail "Integration tests failed." 1
+
 echo "[INFO] Integration tests succeeded."
-
-curl -X POST \
-    --data "{\"state\": \"${STATUS_STATE}\", \"target_url\": \"${TRAVIS_BUILD_WEB_URL}\", \"description\": \"${STATUS_DESCRIPTION}\", \"context\": \"integration-tests\"}" \
-    --user "${INTEGRATION_TEST_VOTING_USER}:${INTEGRATION_TEST_VOTING_TOKEN}" \
-    "https://api.github.com/repos/SAP/jenkins-library/statuses/${COMMIT_HASH_FOR_STATUS_NOTIFICATIONS}"
-
-if [ "${failure}" == "true" ]
-then
-    exit 1
-fi
-
 exit 0