Integration tests: Parse agent version from version.go (#6611)

* Integration tests: use the mage target to get agent version

* Added snapshot to version

* Test run

* Test run Windows

* Removed -v flag

* Parse agent version

* Cleanup

(cherry picked from commit cab384c)

.buildkite/scripts/buildkite-integration-tests.sh

@@ -26,15 +26,15 @@ fi
 asdf install
 
 echo "~~~ Running integration tests as $USER"
-echo "~~~ Integration tests: ${GROUP_NAME}"
 
 go install gotest.tools/gotestsum
 gotestsum --version
 
-PACKAGE_VERSION="$(cat .package-version)"
-if [[ -n "$PACKAGE_VERSION" ]]; then
-    PACKAGE_VERSION=${PACKAGE_VERSION}"-SNAPSHOT"
-fi
+# Parsing version.go. Will be simplified here: https://github.com/elastic/ingest-dev/issues/4925
+AGENT_VERSION=$(grep "const defaultBeatVersion =" version/version.go | cut -d\" -f2)
+AGENT_VERSION="${AGENT_VERSION}-SNAPSHOT"
+export AGENT_VERSION
+echo "~~~ Agent version: ${AGENT_VERSION}"
 
 os_data=$(uname -spr | tr ' ' '_')
 root_suffix=""
@@ -44,8 +44,11 @@ fi
 fully_qualified_group_name="${GROUP_NAME}${root_suffix}_${os_data}"
 outputXML="build/${fully_qualified_group_name}.integration.xml"
 outputJSON="build/${fully_qualified_group_name}.integration.out.json"
+
+echo "~~~ Integration tests: ${GROUP_NAME}"
+
 set +e
-TEST_BINARY_NAME="elastic-agent" AGENT_VERSION="${PACKAGE_VERSION}" SNAPSHOT=true gotestsum --no-color -f standard-quiet --junitfile "${outputXML}" --jsonfile "${outputJSON}" -- -tags integration -test.shuffle on -test.timeout 2h0m0s github.com/elastic/elastic-agent/testing/integration -v -args -integration.groups="${GROUP_NAME}" -integration.sudo="${TEST_SUDO}"
+TEST_BINARY_NAME="elastic-agent" AGENT_VERSION="${AGENT_VERSION}" SNAPSHOT=true gotestsum --no-color -f standard-quiet --junitfile "${outputXML}" --jsonfile "${outputJSON}" -- -tags integration -test.shuffle on -test.timeout 2h0m0s github.com/elastic/elastic-agent/testing/integration -v -args -integration.groups="${GROUP_NAME}" -integration.sudo="${TEST_SUDO}"
 TESTS_EXIT_STATUS=$?
 set -e
 

.buildkite/scripts/integration-tests.ps1

@@ -18,7 +18,10 @@ if ($PACKAGE_VERSION) {
     $PACKAGE_VERSION = "${PACKAGE_VERSION}-SNAPSHOT"
 }
 $env:TEST_BINARY_NAME = "elastic-agent"
-$env:AGENT_VERSION = $PACKAGE_VERSION
+# Parsing version.go. Will be simplified here: https://github.com/elastic/ingest-dev/issues/4925
+$AGENT_VERSION = (Get-Content version/version.go | Select-String -Pattern 'const defaultBeatVersion =' | ForEach-Object { $_ -replace '.*?"(.*?)".*', '$1' })
+$env:AGENT_VERSION = $AGENT_VERSION + "-SNAPSHOT"
+echo "~~~ Agent version: $env:AGENT_VERSION"
 $env:SNAPSHOT = $true
 
 echo "~~~ Building test binaries"
@@ -32,9 +35,9 @@ $fully_qualified_group_name="${GROUP_NAME}${root_suffix}_${osInfo}"
 $outputXML = "build/${fully_qualified_group_name}.integration.xml"
 $outputJSON = "build/${fully_qualified_group_name}.integration.out.json"
 try {
-    Get-Ess-Stack -StackVersion $PACKAGE_VERSION    
+    Get-Ess-Stack -StackVersion $PACKAGE_VERSION
     Write-Output "~~~ Running integration test group: $GROUP_NAME as user: $env:USERNAME"
-    gotestsum --no-color -f standard-quiet --junitfile "${outputXML}" --jsonfile "${outputJSON}" -- -tags=integration -shuffle=on -timeout=2h0m0s "github.com/elastic/elastic-agent/testing/integration" -v -args "-integration.groups=$GROUP_NAME" "-integration.sudo=$TEST_SUDO" 
+    gotestsum --no-color -f standard-quiet --junitfile "${outputXML}" --jsonfile "${outputJSON}" -- -tags=integration -shuffle=on -timeout=2h0m0s "github.com/elastic/elastic-agent/testing/integration" -v -args "-integration.groups=$GROUP_NAME" "-integration.sudo=$TEST_SUDO"
 } finally {
     ess_down