Add windows support

SQLiter/build.gradle

@@ -13,7 +13,6 @@ buildscript {
 apply plugin: 'org.jetbrains.kotlin.multiplatform'
 
 repositories {
-//    mavenLocal()
     mavenCentral()
     maven {
         url 'https://oss.sonatype.org/content/repositories/snapshots/'
@@ -39,6 +38,16 @@ kotlin {
             }
         }
 
+        fromPreset(presets.mingwX64, 'mingw'){
+            compilations.each {
+                it.extraOpts("-linker-options", "-Lc:\\msys64\\mingw64\\lib")
+                it.extraOpts("-linker-options", "-lsqlite3")
+            }
+            compilations.test {
+                it.extraOpts("-native-library", "../KotlinCpp/bcdist/mingw_x64/tlruntime.bc")
+            }
+        }
+
         fromPreset(presets.iosX64, 'iosX64'){
             compilations.each {
                 it.extraOpts("-linker-options", "-lsqlite3")
@@ -91,6 +100,11 @@ kotlin {
                 implementation 'org.jetbrains.kotlin:kotlin-test-junit'
             }
         }
+        mingwMain {
+            dependencies {
+                implementation 'org.jetbrains.kotlin:kotlin-stdlib'
+            }
+        }
 
         nativeCommonMain { }
         nativeCommonTest { }
@@ -99,11 +113,15 @@ kotlin {
             dependsOn nativeCommonMain
         }
 
+        configure([mingwMain]) {
+            dependsOn nativeCommonMain
+        }
+
         configure([iosX64Main, iosArm64Main, macosMain, iosArm32Main]) {
             dependsOn appleMain
         }
 
-        configure([iosX64Test, iosArm64Test, macosTest, iosArm32Test]) {
+        configure([iosX64Test, iosArm64Test, macosTest, iosArm32Test, mingwTest]) {
             dependsOn nativeCommonTest
         }
     }
@@ -133,6 +151,7 @@ task mergeCppAll(dependsOn:build) {
         mergeCppOutput("iosArm64", "ios_arm64")
         mergeCppOutput("iosX64", "ios_x64")
         mergeCppOutput("macos", "macos_x64")
+        mergeCppOutput("mingw", "mingw_x64")
     }
 }
 

SQLiter/src/mingwMain/kotlin/co/touchlab/sqliter/DatabaseFileContext.kt

@@ -0,0 +1,47 @@
+package co.touchlab.sqliter
+
+import co.touchlab.sqliter.internal.File
+import co.touchlab.sqliter.internal.FileFilter
+import co.touchlab.sqliter.internal.Utils
+
+actual object DatabaseFileContext {
+    actual fun deleteDatabase(name: String, basePath:String?) {
+        deleteDatabaseFile(databaseFile(name, basePath))
+    }
+
+    internal fun databasePath(databaseName:String, inMemory:Boolean, datapathPath:String?):String {
+        return if(inMemory) {
+            "file:$databaseName?mode=memory&cache=shared"
+        } else {
+            databaseFile(databaseName, datapathPath).path
+        }
+    }
+
+    internal fun databaseFile(databaseName:String, datapathPath:String?):File {
+        return File(datapathPath ?: Utils.getUserDirectory(), databaseName)
+    }
+
+    internal fun deleteDatabaseFile(file:File):Boolean {
+        var deleted = false
+        deleted = deleted or file.delete()
+        deleted = deleted or File(file.getPath() + "-journal").delete()
+        deleted = deleted or File(file.getPath() + "-shm").delete()
+        deleted = deleted or File(file.getPath() + "-wal").delete()
+
+        val dir = file.getParentFile()
+        if (dir != null) {
+            val prefix = file.getName() + "-mj"
+            val files = dir.listFiles(object: FileFilter {
+                override fun accept(candidate: File):Boolean {
+                    return candidate.getName().startsWith(prefix)
+                }
+            })
+            if (files != null) {
+                for (masterJournal in files) {
+                    deleted = deleted or masterJournal.delete()
+                }
+            }
+        }
+        return deleted
+    }
+}