Fixups to jenkinsci#1918

Jenkinsfile

@@ -45,9 +45,9 @@ stage('prep') {
                 lines = [lines[0], lines[-1]] // run PCT only on newest and oldest lines, to save resources
             }
             stash name: 'pct', includes: 'pct.jar'
+            launchable.install()
             lines.each { line ->
                 def commitHashes = readFile "commit-hashes-${line}.txt"
-                launchable.install()
                 launchable("record build --name \"${BUILD_TAG}-${line}\" --no-commit-collection " + commitHashes)
                 launchable("record session --build \"${BUILD_TAG}-${line}\" --observation >launchable-session-${line}.txt")
                 stash name: "megawar-${line}", includes: "megawar-${line}.war"

prep.sh

@@ -38,20 +38,22 @@ for LINE in $LINEZ; do
 	cd "megawar-${LINE}"
 	jar c0Mf "../../../target/megawar-${LINE}.war" *
 	popd
-	if [[ ${LINE} != weekly ]]; then
-		PROFILE="-P${LINE}"
+	if [[ -n ${CI-} ]]; then
+		if [[ ${LINE} != weekly ]]; then
+			PROFILE="-P${LINE}"
+		fi
+		# TODO https://github.com/jenkinsci/maven-hpi-plugin/pull/464
+		$MVN \
+			-f sample-plugin \
+			hpi:resolve-test-dependencies \
+			${SAMPLE_PLUGIN_OPTS:-} \
+			${PROFILE:-} \
+			-DoverrideWar="../target/megawar-${LINE}.war" \
+			-DuseUpperBounds \
+			-Dhpi-plugin.version=3.42-rc1409.669de6d1a_866 \
+			-DcommitHashes=target/commit-hashes.txt
+		mv sample-plugin/target/commit-hashes.txt "target/commit-hashes-${LINE}.txt"
 	fi
-	# TODO https://github.com/jenkinsci/maven-hpi-plugin/pull/464
-	$MVN \
-		-f sample-plugin \
-		hpi:resolve-test-dependencies \
-		${SAMPLE_PLUGIN_OPTS:-} \
-		${PROFILE:-} \
-		-DoverrideWar="../target/megawar-${LINE}.war" \
-		-DuseUpperBounds \
-		-Dhpi-plugin.version=3.42-rc1409.669de6d1a_866 \
-		-DcommitHashes=target/commit-hashes.txt
-	mv sample-plugin/target/commit-hashes.txt "target/commit-hashes-${LINE}.txt"
 done
 
 # Tracked by ./updatecli/updatecli.d/plugin-compat-tester.yml