ci: Use fedoraBuild function

Instead of manually specifying a list of Fedora versions to target, we
can now use the `fedoraBuild` pipeline function to generate the target
matrix automatically.

Note that the stage names need to be unique, as the `when` function
cannot mark the correct stage as "skipped" if there are multiple stages
with the same name.

ci/Jenkinsfile

@@ -1,7 +1,7 @@
-pipeline {
+@Library('dch')_
-    agent none
 
-    triggers {
+properties([
+    pipelineTriggers([
         GenericTrigger(
             causeString: 'Webhook Trigger',
             genericVariables: [[
@@ -15,56 +15,39 @@ pipeline {
             silentResponse: true,
             tokenCredentialId: 'webhook-trigger',
         )
-    }
+    ])
+])
 
-    stages {
+try {
-        stage('RPM') {
+    fedoraBuild(
-            matrix {
+        architectures: ['amd64'],
-                axes {
+        podTemplate: 'ci/podTemplate.yaml',
-                    axis {
+        buildContainer: 'fedora',
-                        name 'FEDORA'
+    ) { arch, fedoraVersion ->
-                        values '41', '42'
+        stage("Prepare f${fedoraVersion}/${arch}") {
-                    }
+            checkout scm
-                }
 
-                agent {
+            container('fedora') {
-                    kubernetes {
-                        yamlFile 'ci/podTemplate.yaml'
-                        yamlMergeStrategy merge()
-                        defaultContainer 'fedora'
-                        containerTemplate {
-                            name 'fedora'
-                            image "registry.fedoraproject.org/fedora:${FEDORA}"
-                        }
-                    }
-                }
-
-                stages {
-                    stage('Prepare') {
-                        steps {
                 sh '. ci/prepare.sh'
             }
         }
 
-                    stage('Build') {
+        stage("Build f${fedoraVersion}/${arch}") {
-                        steps {
             withCredentials([file(
                 credentialsId: 'kmod-signing-cert',
                 variable: 'SIGNING_KEY',
             )]) {
+                container('fedora') {
                     sh '. ci/build.sh'
                 }
             }
         }
 
-                    stage('Sign') {
+        stage("Sign f${fedoraVersion}/${arch}") {
-                        when {
+            when(BRANCH_NAME == 'main') {
-                            branch 'main'
+                withEnvironment([
-                        }
+                    "GNUPGHOME=${env.WORKSPACE_TMP}/gnupg",
-                        environment {
+                ]) {
-                            GNUPGHOME = "${env.WORKSPACE_TMP}/gnupg"
-                        }
-                        steps {
                     withCredentials([
                         file(
                             credentialsId: 'rpm-gpg-key',
@@ -75,40 +58,32 @@ pipeline {
                             variable: 'RPM_GPG_KEY_PASSPHRASE',
                         ),
                     ]) {
+                        container('fedora') {
                             sh '. ci/sign.sh'
                         }
                     }
                 }
+            }
+        }
 
-                    stage('Archive') {
-                        steps {
         archiveArtifacts '*.rpm'
-                        }
-                    }
 
-                    stage('Publish') {
+        stage("Publish f${fedoraVersion}/${arch}") {
-                        when {
+            when(BRANCH_NAME == 'main') {
-                            branch 'main'
+                container('fedora') {
-                        }
-                        steps {
                     sshagent(['jenkins-repohost']) {
                         sh '. ci/publish.sh'
                     }
                 }
             }
-
         }
     }
-        }
+} catch (ex) {
-    }
+    currentBuild.result = 'FAILED'
-
-    post {
-        failure {
     emailext(
         to: 'gyrfalcon@ebonfire.com',
         subject: '$DEFAULT_SUBJECT',
         body: '$DEFAULT_CONTENT',
     )
-        }
+    throw ex
-    }
 }