chore: remote FTL root POM; ftl-runtime POM is standalone

fixes #1019

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Build Cache
         uses: ./.github/actions/build-cache
       - name: Test
-        run: mvn test --batch-mode
+        run: mvn -f kotlin-runtime/ftl-runtime -B test
   test:
     name: Test Go
     runs-on: ubuntu-latest

.github/workflows/release.yml

@@ -112,9 +112,9 @@ jobs:
           cache: "maven"
       - name: Publish JARs # Snapshots are published first, then the tagged release
         run: |
-          mvn -U -B clean deploy -P release
-          mvn -B versions:set -DnewVersion="$(git describe --tags --abbrev=0 | cut -c2-)" -DprocessAllModules -DgenerateBackupPoms=false
-          mvn -U -B clean deploy -P release
+          mvn -f kotlin-runtime/ftl-runtime -U -B clean deploy -P release
+          mvn -f kotlin-runtime/ftl-runtime -B versions:set -DnewVersion="$(git describe --tags --abbrev=0 | cut -c2-)" -DprocessAllModules -DgenerateBackupPoms=false
+          mvn -f kotlin-runtime/ftl-runtime -U -B clean deploy -P release
           git clean -f ./*.flattened_pom.xml
         env:
           SIGN_KEY_PASS: ${{ secrets.GPG_PASSPHRASE }}

.github/workflows/writecache.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Rebuild All
         run: bit
       - name: Download Maven Dependencies
-        run: mvn dependency:resolve --batch-mode
+        run: mvn -f kotlin-runtime/ftl-runtime dependency:resolve --batch-mode
       - name: Download Go Dependencies
         run: go mod download -x
       - id: find-go-build-cache

Bitfile

@@ -27,7 +27,7 @@ PROTO_OUT = backend/protos/xyz/block/ftl/v1/ftlv1connect/ftl.connect.go \
 COMMON_LOG_IN = internal/log/api.go
 COMMON_LOG_OUT = internal/log/log_level_string.go
 
-KT_RUNTIME_IN = kotlin-runtime/ftl-runtime/**/*.{kt,kts} pom.xml kotlin-runtime/ftl-runtime/**/pom.xml
+KT_RUNTIME_IN = kotlin-runtime/ftl-runtime/**/*.{kt,kts} kotlin-runtime/ftl-runtime/**/pom.xml
 KT_RUNTIME_OUT = kotlin-runtime/ftl-runtime/target/ftl-runtime-1.0-SNAPSHOT.jar
 KT_RUNTIME_RUNNER_TEMPLATE_OUT = build/template/ftl/jars/ftl-runtime.jar
 
@@ -113,9 +113,8 @@ kotlin-runtime/external-module-template.zip: kotlin-runtime/external-module-temp
 %{KT_RUNTIME_OUT}: %{KT_RUNTIME_IN} %{PROTO_IN}
   # TODO: Figure out how to make Maven build completely offline. Bizarrely "-o" does not do this.
   build:
-    mvn -B -N install
-    mvn -Dmaven.test.skip=true -B -pl :ftl-runtime install
-  +clean: mvn -B -pl :ftl-runtime clean
+    mvn -f kotlin-runtime/ftl-runtime -Dmaven.test.skip=true -B install
+  +clean: mvn -f kotlin-runtime/ftl-runtime -B install clean
 
 %(dirname %{KT_RUNTIME_RUNNER_TEMPLATE_OUT})%:
   build: install -m 0700 -d %{OUT}

Dockerfile.controller

@@ -10,7 +10,7 @@ WORKDIR /src
 
 # Seed some of the most common tools - this will be cached
 RUN go version
-RUN mvn -B --version
+RUN mvn -f kotlin-runtime/ftl-runtime -B --version
 
 # Download Go dependencies separately so Docker will cache them
 COPY go.mod go.sum ./

Dockerfile.runner

@@ -12,7 +12,7 @@ RUN hermit install openjre-18.0.2.1_1
 RUN hermit uninstall openjre
 RUN hermit install jbr
 RUN go version
-RUN mvn -B --version
+RUN mvn -f kotlin-runtime/ftl-runtime -B --version
 
 WORKDIR /src
 

buildengine/discover_test.go

@@ -4,8 +4,6 @@ import (
 	"context"
 	"testing"
 
-	"github.com/alecthomas/assert/v2"
-
 	"github.com/TBD54566975/ftl/common/moduleconfig"
 	"github.com/TBD54566975/ftl/internal/log"
 )
@@ -40,7 +38,7 @@ func TestDiscoverModules(t *testing.T) {
 			Language: "kotlin",
 			Realm:    "home",
 			Module:   "echo",
-			Build:    "mvn -B compile",
+			Build:    "mvn -f kotlin-runtime/ftl-runtime -B compile",
 			Deploy: []string{
 				"main",
 				"classes",

common/moduleconfig/moduleconfig.go

@@ -69,7 +69,7 @@ func setConfigDefaults(moduleDir string, config *ModuleConfig) error {
 	switch config.Language {
 	case "kotlin":
 		if config.Build == "" {
-			config.Build = "mvn -B compile"
+			config.Build = "mvn -f kotlin-runtime/ftl-runtime -B compile"
 		}
 		if config.DeployDir == "" {
 			config.DeployDir = "target"