Add Android support via Tauri
The Rust core was already portable (caller-provided db paths, rustls rather than openssl) and the shell already had the mobile entry point, so this is mostly toolchain, provisioning, and platform-gating. Toolchain: - scripts/android-setup.sh installs what Android Studio doesn't: SDK cmdline-tools, a pinned stable NDK, and the Rust Android targets. The NDK is pinned rather than "latest" because sdkmanager's newest is often a beta (30.0.15729638 is r30-beta2) -- not something to compile SQLite with. Prefers Android Studio's bundled JDK 21, since Gradle rejects newer JDKs. - Track src-tauri/gen/android (excluding build output): AndroidManifest.xml is hand-edited and Android permissions have no tauri.conf.json equivalent. - vite: serve on TAURI_DEV_HOST so a device/emulator can reach the dev server. Card data: downloading streams ~740MB to build a ~73MB db, which is rough on a phone. Add import_reference_db to adopt a desktop-built file instead, validated by db::inspect_reference_db first so picking the wrong file is a clean error rather than a broken install. Installs via copy-then-rename so an interrupted copy can't leave a partial db. Ingest hardening (helps desktop too): - Give ureq connect/read timeouts. Cancellation is only polled per parsed record, so a stalled socket previously hung forever with no way to cancel. - Drop the remove_file before rename; POSIX rename already replaces atomically, and the delete-first window could leave no reference.db at all if the process was killed -- much likelier on Android. UI: hide Open/New Library on mobile (scoped storage has no arbitrary-path equivalent, and SQLite can't open a content:// URI), reported via a cfg!(mobile) flag on Status rather than user-agent sniffing. Use 100dvh so the soft keyboard doesn't break the shell. Verified: 70/70 core tests, desktop build clean, and the aarch64 APK builds (bundled SQLite C and ring both cross-compile under NDK 28). Not yet run on a device.
This commit is contained in:
23
src-tauri/gen/android/buildSrc/build.gradle.kts
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23
src-tauri/gen/android/buildSrc/build.gradle.kts
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plugins {
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`kotlin-dsl`
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}
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gradlePlugin {
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plugins {
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create("pluginsForCoolKids") {
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id = "rust"
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implementationClass = "RustPlugin"
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}
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}
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}
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repositories {
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google()
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mavenCentral()
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}
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dependencies {
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compileOnly(gradleApi())
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implementation("com.android.tools.build:gradle:8.11.0")
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}
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import java.io.File
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import org.apache.tools.ant.taskdefs.condition.Os
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import org.gradle.api.DefaultTask
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import org.gradle.api.GradleException
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import org.gradle.api.logging.LogLevel
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import org.gradle.api.tasks.Input
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import org.gradle.api.tasks.TaskAction
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open class BuildTask : DefaultTask() {
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@Input
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var rootDirRel: String? = null
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@Input
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var target: String? = null
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@Input
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var release: Boolean? = null
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@TaskAction
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fun assemble() {
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val executable = """cargo""";
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try {
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runTauriCli(executable)
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} catch (e: Exception) {
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if (Os.isFamily(Os.FAMILY_WINDOWS)) {
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// Try different Windows-specific extensions
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val fallbacks = listOf(
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"$executable.exe",
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"$executable.cmd",
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"$executable.bat",
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)
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var lastException: Exception = e
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for (fallback in fallbacks) {
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try {
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runTauriCli(fallback)
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return
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} catch (fallbackException: Exception) {
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lastException = fallbackException
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}
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}
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throw lastException
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} else {
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throw e;
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}
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}
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}
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fun runTauriCli(executable: String) {
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val rootDirRel = rootDirRel ?: throw GradleException("rootDirRel cannot be null")
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val target = target ?: throw GradleException("target cannot be null")
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val release = release ?: throw GradleException("release cannot be null")
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val args = listOf("tauri", "android", "android-studio-script");
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project.exec {
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workingDir(File(project.projectDir, rootDirRel))
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executable(executable)
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args(args)
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if (project.logger.isEnabled(LogLevel.DEBUG)) {
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args("-vv")
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} else if (project.logger.isEnabled(LogLevel.INFO)) {
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args("-v")
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}
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if (release) {
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args("--release")
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}
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args(listOf("--target", target))
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}.assertNormalExitValue()
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}
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}
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@@ -0,0 +1,85 @@
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import com.android.build.api.dsl.ApplicationExtension
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import org.gradle.api.DefaultTask
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import org.gradle.api.Plugin
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import org.gradle.api.Project
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import org.gradle.kotlin.dsl.configure
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import org.gradle.kotlin.dsl.get
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const val TASK_GROUP = "rust"
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open class Config {
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lateinit var rootDirRel: String
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}
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open class RustPlugin : Plugin<Project> {
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private lateinit var config: Config
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override fun apply(project: Project) = with(project) {
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config = extensions.create("rust", Config::class.java)
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val defaultAbiList = listOf("arm64-v8a", "armeabi-v7a", "x86", "x86_64");
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val abiList = (findProperty("abiList") as? String)?.split(',') ?: defaultAbiList
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val defaultArchList = listOf("arm64", "arm", "x86", "x86_64");
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val archList = (findProperty("archList") as? String)?.split(',') ?: defaultArchList
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val targetsList = (findProperty("targetList") as? String)?.split(',') ?: listOf("aarch64", "armv7", "i686", "x86_64")
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extensions.configure<ApplicationExtension> {
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@Suppress("UnstableApiUsage")
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flavorDimensions.add("abi")
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productFlavors {
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create("universal") {
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dimension = "abi"
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ndk {
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abiFilters += abiList
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}
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}
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defaultArchList.forEachIndexed { index, arch ->
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create(arch) {
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dimension = "abi"
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ndk {
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abiFilters.add(defaultAbiList[index])
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}
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}
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}
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}
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}
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afterEvaluate {
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for (profile in listOf("debug", "release")) {
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val profileCapitalized = profile.replaceFirstChar { it.uppercase() }
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val buildTask = tasks.maybeCreate(
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"rustBuildUniversal$profileCapitalized",
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DefaultTask::class.java
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).apply {
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group = TASK_GROUP
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description = "Build dynamic library in $profile mode for all targets"
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}
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tasks["mergeUniversal${profileCapitalized}JniLibFolders"].dependsOn(buildTask)
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for (targetPair in targetsList.withIndex()) {
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val targetName = targetPair.value
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val targetArch = archList[targetPair.index]
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val targetArchCapitalized = targetArch.replaceFirstChar { it.uppercase() }
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val targetBuildTask = project.tasks.maybeCreate(
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"rustBuild$targetArchCapitalized$profileCapitalized",
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BuildTask::class.java
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).apply {
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group = TASK_GROUP
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description = "Build dynamic library in $profile mode for $targetArch"
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rootDirRel = config.rootDirRel
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target = targetName
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release = profile == "release"
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}
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buildTask.dependsOn(targetBuildTask)
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tasks["merge$targetArchCapitalized${profileCapitalized}JniLibFolders"].dependsOn(
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targetBuildTask
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)
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}
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}
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}
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}
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}
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