Jenkins: Trigger deferred failure when any build of any stage fails

.ci/Jenkinsfile

@@ -48,7 +48,7 @@ def saveArtifacts() {
 	archiveArtifacts artifacts: "${env.JOB_BASE_NAME}-*"
 }
 
-def anySuccess = false
+def successCount = 0
 
 def buildChain = [
 	'86Box': '86Box-Dev',
@@ -75,32 +75,40 @@ pipeline {
 
 	stages {
 		stage('Build Windows') {
+			agent {
+				node {
+					label 'windows'
+				}
+			}
+
 			steps {
 				catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
-					node('windows') {
 					gitClone()
 					windowsBuild()
 					saveArtifacts()
-					}
 
 					script {
-						anySuccess = true
+						successCount += 1
 					}
 				}
 			}
 		}
 
 		stage('Build Linux') {
+			agent {
+				node {
+					label 'debian'
+				}
+			}
+
 			steps {
 				catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
-					node('debian') {
 					gitClone()
 					unixBuild()
 					saveArtifacts()
-					}
 
 					script {
-						anySuccess = true
+						successCount += 1
 					}
 				}
 			}
@@ -110,11 +118,12 @@ pipeline {
 	post {
 		always {
 			script {
+				/* Trigger next job is applicable. */
 				if (buildChain[env.JOB_BASE_NAME]) {
 					def nextJob = buildChain[env.JOB_BASE_NAME]
 
+					/* Set next build number for the next job. */
 					try {
-						/* Set next build number for this job. */
 						def job = Jenkins.instance.getItem(nextJob)
 						job.nextBuildNumber = env.BUILD_NUMBER as Integer
 						job.saveNextBuildNumber()
@@ -122,7 +131,7 @@ pipeline {
 						println "[!] Could not set next build number for [$nextJob], make sure all required script approvals are in place"
 					}
 
-					/* Trigger this job. */
+					/* Trigger next job. */
 					build propagate: false,
 					      wait: false,
 					      job: nextJob,
@@ -132,8 +141,8 @@ pipeline {
 					      ]
 				}
 
-				if (!anySuccess) {
+				if (successCount < 2) {
-					println "[!] Failing build because all build stages failed"
+					println "[!] Failing build because a build stage failed"
 					currentBuild.result = 'FAILURE'
 				}
 

.ci/build.sh

@@ -122,6 +122,7 @@ build() {
 	if [ -z "$job_name" ]
 	then
 		echo [!] Missing environment variables: received JOB_BASE_NAME=[$JOB_BASE_NAME] BUILD_TYPE=[$BUILD_TYPE] BUILD_NUMBER=[$BUILD_NUMBER] GIT_COMMIT=[$GIT_COMMIT]
+		job_status=1
 		return 1
 	fi
 
@@ -145,11 +146,12 @@ build() {
 				echo [-] Switching to MSYSTEM [$msys]
 				cd "$cwd"
 				CHERE_INVOKING=yes MSYSTEM="$msys" JOB_BASE_NAME="$JOB_BASE_NAME" BUILD_TYPE="$BUILD_TYPE" BUILD_NUMBER="$BUILD_NUMBER" GIT_COMMIT="$GIT_COMMIT" \
-					bash -lc 'exec "'$0'" -b "'$arch'" '"$cmake_flags" && job_status=0 # make sure the main script exits cleanly on any success
+					bash -lc 'exec "'$0'" -b "'$arch'" '"$cmake_flags"
 				return $?
 			fi
 		else
 			echo [!] No MSYSTEM for architecture [$arch]
+			job_status=1
 			return 2
 		fi
 		echo [-] Using MSYSTEM [$MSYSTEM]
@@ -253,6 +255,7 @@ EOF
 	if [ $? -gt 0 ]
 	then
 		echo [!] CMake failed with status [$status]
+		job_status=1
 		return 3
 	fi
 
@@ -263,6 +266,7 @@ EOF
 	if [ $status -gt 0 ]
 	then
 		echo [!] Make failed with status [$status]
+		job_status=1
 		return 4
 	fi
 
@@ -273,6 +277,7 @@ EOF
 	if [ ! -d "archive_tmp" ]
 	then
 		echo [!] Archive directory creation failed
+		job_status=1
 		return 5
 	fi
 
@@ -337,6 +342,7 @@ EOF
 	if [ $status -gt 0 ]
 	then
 		echo [!] Executable move failed with status [$status]
+		job_status=1
 		return 6
 	fi
 
@@ -363,12 +369,12 @@ EOF
 	if [ $status -gt 0 ]
 	then
 		echo [!] Artifact archive creation failed with status [$status]
+		job_status=1
 		return 7
 	fi
 
 	# All good.
 	echo [-] Build of [$job_name] [$build_type] [$build_qualifier] [$git_hash] for [$arch] with flags [$cmake_flags] successful
-	job_status=0
 }
 
 tarball() {
@@ -383,6 +389,7 @@ tarball() {
 	if [ -z "$job_name" ]
 	then
 		echo [!] Missing environment variable: received JOB_BASE_NAME=[$JOB_BASE_NAME]
+		job_status=1
 		return 1
 	fi
 
@@ -405,6 +412,7 @@ tarball() {
 	if [ $? -gt 0 ]
 	then
 		echo [!] Tarball creation failed with status [$status]
+		job_status=1
 		return 2
 	fi
 
@@ -415,7 +423,7 @@ tarball() {
 project=86Box
 cwd=$(pwd)
 first_build=1
-job_status=1
+job_status=0
 
 # Parse arguments.
 single_build=0