Merge pull request #2 from Cognifide/host-internal-ip

Host internal IP always auto determined

Author: Krystian Panek

src/main/kotlin/com/cognifide/gradle/environment/docker/Runtime.kt

@@ -13,7 +13,7 @@ interface Runtime {
 
     val safeVolumes: Boolean
 
-    val hostInternalIp: String?
+    val hostInternalIp: String
 
     fun determinePath(path: String): String
 

src/main/kotlin/com/cognifide/gradle/environment/docker/runtime/Base.kt

@@ -1,11 +1,23 @@
 package com.cognifide.gradle.environment.docker.runtime
 
 import com.cognifide.gradle.environment.EnvironmentExtension
+import com.cognifide.gradle.environment.docker.DockerProcess
 import com.cognifide.gradle.environment.docker.Runtime
 
 abstract class Base(protected val environment: EnvironmentExtension) : Runtime {
 
     protected val logger = environment.project.logger
 
     override fun toString(): String = name.toLowerCase()
+
+    @Suppress("SpreadOperator", "TooGenericExceptionCaught")
+    protected fun detectHostInternalIp(): String? = try {
+        DockerProcess.execString {
+            val args = listOf("run", "alpine", "/bin/ash", "-c", "ip -4 route list match 0/0 | cut -d ' ' -f 3")
+            withArgs(*args.toTypedArray())
+        }.takeIf { it.isNotBlank() }
+    } catch (e: Exception) {
+        logger.debug("Cannot detect Docker host internal IP. Cause: ${e.message}", e)
+        null
+    }
 }

src/main/kotlin/com/cognifide/gradle/environment/docker/runtime/Desktop.kt

@@ -2,36 +2,22 @@ package com.cognifide.gradle.environment.docker.runtime
 
 import com.cognifide.gradle.common.utils.Formats
 import com.cognifide.gradle.environment.EnvironmentExtension
-import com.cognifide.gradle.environment.docker.DockerProcess
 import org.gradle.internal.os.OperatingSystem
 
 class Desktop(environment: EnvironmentExtension) : Base(environment) {
 
     override val name: String get() = NAME
 
-    override val hostIp: String get() = environment.prop.string("environment.docker.desktop.hostIp") ?: "127.0.0.1"
+    override val hostIp: String get() = environment.prop.string("environment.docker.desktop.hostIp")
+            ?: "127.0.0.1"
+
+    override val hostInternalIp: String get() = environment.prop.string("environment.docker.desktop.hostInternalIp")
+            ?: detectHostInternalIp() ?: "172.17.0.1"
 
     override val safeVolumes: Boolean get() = !OperatingSystem.current().isWindows
 
     override fun determinePath(path: String) = Formats.normalizePath(path)
 
-    override val hostInternalIp: String?
-        get() = when {
-            OperatingSystem.current().isWindows || OperatingSystem.current().isMacOsX -> null
-            else -> detectHostInternalIp() ?: environment.prop.string("environment.docker.desktop.hostInternalIp") ?: "172.17.0.1"
-        }
-
-    @Suppress("SpreadOperator", "TooGenericExceptionCaught")
-    private fun detectHostInternalIp(): String? = try {
-        DockerProcess.execString {
-            val args = listOf("run", "alpine", "/bin/ash", "-c", "ip -4 route list match 0/0 | cut -d ' ' -f 3")
-            withArgs(*args.toTypedArray())
-        }.takeIf { it.isNotBlank() }
-    } catch (e: Exception) {
-        logger.debug("Cannot detect Docker host internal IP. Cause: ${e.message}", e)
-        null
-    }
-
     companion object {
         const val NAME = "desktop"
     }

src/main/kotlin/com/cognifide/gradle/environment/docker/runtime/Toolbox.kt

@@ -8,7 +8,11 @@ class Toolbox(environment: EnvironmentExtension) : Base(environment) {
 
     override val name: String get() = NAME
 
-    override val hostIp: String get() = detectHostIp() ?: environment.prop.string("environment.docker.toolbox.hostIp") ?: "192.168.99.100"
+    override val hostIp: String get() = environment.prop.string("environment.docker.toolbox.hostIp")
+            ?: detectHostIp() ?: "192.168.99.100"
+
+    override val hostInternalIp: String get() = environment.prop.string("environment.docker.toolbox.hostInternalIp")
+            ?: detectHostInternalIp() ?: "10.0.2.2"
 
     @Suppress("TooGenericExceptionCaught")
     fun detectHostIp(): String? = try {
@@ -21,9 +25,6 @@ class Toolbox(environment: EnvironmentExtension) : Base(environment) {
 
     override val safeVolumes: Boolean = true
 
-    override val hostInternalIp: String?
-        get() = environment.prop.string("environment.docker.toolbox.hostInternalIp") ?: "10.0.2.2"
-
     var cygpathPath = environment.prop.string("environment.cygpath.path")
             ?: "C:\\Program Files\\Git\\usr\\bin\\cygpath.exe"