KTOR-8472 Flatten Gradle project hierarchy (#4836)

* Introduce a DSL for project hierarchy declaration
* Apply ktorbuild.compatibility to subprojects
* Fix project paths in dependencies

Author: osipxd

build-logic/src/main/kotlin/ktorbuild.compatibility.gradle.kts

@@ -7,51 +7,8 @@ plugins {
 }
 
 apiValidation {
-    val excludeList = setOf(
-        "ktor",
-        "ktor-client-test-base",
-        "ktor-client-tests",
-        "ktor-client-js",
-        "ktor-client-content-negotiation-tests",
-        "ktor-serialization-kotlinx-tests",
-        "ktor-serialization-tests",
-        "ktor-client",
-        "ktor-client-plugins",
-        "ktor-server-test-suites",
-        "ktor-server-test-base",
-        "ktor-test-base",
-    )
-
-    val projects = mutableSetOf<Project>()
-    val queue = arrayDequeOf(
-        project(":ktor-client"),
-        project(":ktor-http"),
-        project(":ktor-network"),
-        project(":ktor-utils"),
-        project(":ktor-io"),
-        project(":ktor-server"),
-        project(":ktor-server:ktor-server-plugins"),
-        project(":ktor-shared"),
-    )
-
-    while (queue.isNotEmpty()) {
-        val currentProject = queue.removeLast()
-        if (projects.add(currentProject)) {
-            queue.addAll(currentProject.childProjects.values)
-        }
-    }
-
-    val projectNames = projects.map { it.name }.toSet()
-
-    ignoredProjects.addAll(excludeList)
-    ignoredProjects.addAll(
-        project.allprojects.map { it.name }.filter { !projectNames.contains(it) }
-    )
-
     @OptIn(kotlinx.validation.ExperimentalBCVApi::class)
     klib {
         enabled = true
     }
 }
-
-fun <T> arrayDequeOf(vararg values: T): ArrayDeque<T> = ArrayDeque(values.asList())

build-logic/src/main/kotlin/ktorbuild.project.client-plugin.gradle.kts

@@ -11,25 +11,25 @@ plugins {
 kotlin {
     sourceSets {
         commonMain.dependencies {
-            api(project(":ktor-client:ktor-client-core"))
+            api(project(":ktor-client-core"))
         }
         commonTest.dependencies {
-            implementation(project(":ktor-client:ktor-client-tests"))
+            implementation(project(":ktor-client-tests"))
         }
 
         if (ktorBuild.targets.hasJvm) {
             jvmTest.dependencies {
-                runtimeOnly(project(":ktor-client:ktor-client-okhttp"))
-                runtimeOnly(project(":ktor-client:ktor-client-apache"))
-                runtimeOnly(project(":ktor-client:ktor-client-cio"))
-                runtimeOnly(project(":ktor-client:ktor-client-android"))
-                runtimeOnly(project(":ktor-client:ktor-client-java"))
+                runtimeOnly(project(":ktor-client-okhttp"))
+                runtimeOnly(project(":ktor-client-apache"))
+                runtimeOnly(project(":ktor-client-cio"))
+                runtimeOnly(project(":ktor-client-android"))
+                runtimeOnly(project(":ktor-client-java"))
             }
         }
 
         if (ktorBuild.targets.hasJs) {
             jsTest.dependencies {
-                runtimeOnly(project(":ktor-client:ktor-client-js"))
+                runtimeOnly(project(":ktor-client-js"))
             }
         }
     }

build-logic/src/main/kotlin/ktorbuild.project.library.gradle.kts

@@ -8,6 +8,7 @@ plugins {
     id("ktorbuild.kmp")
     id("ktorbuild.dokka")
     id("ktorbuild.publish")
+    id("ktorbuild.compatibility")
 }
 
 addProjectTag(ProjectTag.Library)

build-logic/src/main/kotlin/ktorbuild.project.server-plugin.gradle.kts

@@ -9,10 +9,10 @@ plugins {
 kotlin {
     sourceSets {
         commonMain.dependencies {
-            api(project(":ktor-server:ktor-server-core"))
+            api(project(":ktor-server-core"))
         }
         commonTest.dependencies {
-            implementation(project(":ktor-server:ktor-server-test-base"))
+            implementation(project(":ktor-server-test-base"))
         }
     }
 }

build.gradle.kts

@@ -4,7 +4,6 @@
 
 plugins {
     id("ktorbuild.doctor")
-    id("ktorbuild.compatibility")
     id("ktorbuild.publish.verifier")
 }
 

ktor-client/api/ktor-client.api

@@ -9,7 +9,7 @@ plugins {
 kotlin {
     sourceSets {
         commonMain.dependencies {
-            api(project(":ktor-client:ktor-client-core"))
+            api(project(":ktor-client-core"))
         }
     }
 }

ktor-client/api/ktor-client.klib.api

@@ -12,12 +12,12 @@ plugins {
 kotlin {
     sourceSets {
         jvmMain.dependencies {
-            api(project(":ktor-client:ktor-client-core"))
+            api(project(":ktor-client-core"))
         }
         jvmTest.dependencies {
-            api(project(":ktor-client:ktor-client-tests"))
-            api(project(":ktor-network:ktor-network-tls"))
-            api(project(":ktor-network:ktor-network-tls:ktor-network-tls-certificates"))
+            api(project(":ktor-client-tests"))
+            api(project(":ktor-network-tls"))
+            api(project(":ktor-network-tls-certificates"))
         }
     }
 }

ktor-client/build.gradle.kts

@@ -12,11 +12,11 @@ plugins {
 kotlin {
     sourceSets {
         jvmMain.dependencies {
-            api(project(":ktor-client:ktor-client-core"))
+            api(project(":ktor-client-core"))
             api(libs.apache.httpasyncclient)
         }
         jvmTest.dependencies {
-            api(project(":ktor-client:ktor-client-tests"))
+            api(project(":ktor-client-tests"))
         }
     }
 }