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Please consider this project *experimental*. But we hope to have an official release out soon.

License: Other

Rust 60.82% Kotlin 19.77% Python 5.34% Swift 10.40% Shell 2.59% Nix 0.52% Just 0.55%

android ios jvm kotlin rust swift

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Support `bdk-jni` APIs used by `padawan-wallet`

By supporting the existing bdk-jni APIs we will be able to support the padawan-wallet project and other projects that are currently using bdk-jni.

Use key/value Sled DB for iOS example app

Include static libraries for more target triples in `bdk-jvm`

We need to support the following target triples:

aarch64-unknown-linux-gnu ARM64 Linux (kernel 4.2, glibc 2.17+)
i686-pc-windows-gnu 32-bit MinGW (Windows 7+)
i686-pc-windows-msvc 32-bit MSVC (Windows 7+)
i686-unknown-linux-gnu 32-bit Linux (kernel 2.6.32+, glibc 2.11+)
aarch64-apple-darwin ARM64 macOS (11.0+, Big Sur+) bitcoindevkit/bdk-kotlin#5
x86_64-apple-darwin 64-bit macOS (10.7+, Lion+) bitcoindevkit/bdk-kotlin#5
x86_64-pc-windows-gnu 64-bit MinGW (Windows 7+)
x86_64-pc-windows-msvc 64-bit MSVC (Windows 7+)
x86_64-unknown-linux-gnu 64-bit Linux (kernel 2.6.32+, glibc 2.11+)

Reference: https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-1-with-host-tools

Fix androidTest tests

Error with test.sh -a. Some sort of class path problem.

> Task :android:mergeLibDexDebugAndroidTest FAILED
ERROR:/Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/android/build/.transforms/f8f486ba184b26ea1f15591ec62fc9a1/transformed/classes/classes.dex: D8: Type org.bitcoindevkit.BdkException$ErrorHandler$lift$1 is defined multiple times: /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/android/build/.transforms/f8f486ba184b26ea1f15591ec62fc9a1/transformed/classes/classes.dex, /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/jvm/build/.transforms/4e2c77aa7006fe94dfc61462ec41c77b/transformed/jetified-jvm/classes.dex
com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
Type org.bitcoindevkit.BdkException$ErrorHandler$lift$1 is defined multiple times: /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/android/build/.transforms/f8f486ba184b26ea1f15591ec62fc9a1/transformed/classes/classes.dex, /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/jvm/build/.transforms/4e2c77aa7006fe94dfc61462ec41c77b/transformed/jetified-jvm/classes.dex
        at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:128)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:115)
        at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:111)
        at com.android.build.gradle.internal.tasks.DexMergingWorkAction.merge(DexMergingTask.kt:805)
        at com.android.build.gradle.internal.tasks.DexMergingWorkAction.run(DexMergingTask.kt:760)
        at com.android.build.gradle.internal.profile.ProfileAwareWorkAction.execute(ProfileAwareWorkAction.kt:74)
        at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:63)
        at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.create(NoIsolationWorkerFactory.java:66)
        at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.create(NoIsolationWorkerFactory.java:62)
        at org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:97)
        at org.gradle.workers.internal.NoIsolationWorkerFactory$1.lambda$execute$0(NoIsolationWorkerFactory.java:62)
        at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
        at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
        at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
        at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:79)
        at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:79)
        at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)
        at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:59)
        at org.gradle.workers.internal.DefaultWorkerExecutor.lambda$submitWork$2(DefaultWorkerExecutor.java:206)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:214)
        at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:164)
        at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:131)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:61)
        at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/android/build/.transforms/f8f486ba184b26ea1f15591ec62fc9a1/transformed/classes/classes.dex
        at Version.fakeStackEntry(Version_2.2.66.java:0)
        at com.android.tools.r8.utils.a0.a(SourceFile:89)
        at com.android.tools.r8.D8.run(D8.java:11)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:113)
        ... 36 more
Caused by: com.android.tools.r8.utils.b: Type org.bitcoindevkit.BdkException$ErrorHandler$lift$1 is defined multiple times: /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/android/build/.transforms/f8f486ba184b26ea1f15591ec62fc9a1/transformed/classes/classes.dex, /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/jvm/build/.transforms/4e2c77aa7006fe94dfc61462ec41c77b/transformed/jetified-jvm/classes.dex
        at com.android.tools.r8.utils.V0.a(SourceFile:22)
        at com.android.tools.r8.utils.V0.a(SourceFile:25)
        at com.android.tools.r8.utils.T0.b(SourceFile:6)
        at com.android.tools.r8.utils.T0.a(SourceFile:24)
        at com.android.tools.r8.utils.T0.a(SourceFile:10)
        at java.base/java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:2056)
        at com.android.tools.r8.utils.T0.a(SourceFile:6)
        at com.android.tools.r8.graph.i1$c.e(SourceFile:3)
        at com.android.tools.r8.dex.a.a(SourceFile:336)
        at com.android.tools.r8.dex.a.a(SourceFile:265)
        at com.android.tools.r8.D8.a(D8.java:22)
        at com.android.tools.r8.D8.d(D8.java:6)
        at com.android.tools.r8.D8.b(D8.java:1)
        at com.android.tools.r8.utils.a0.a(SourceFile:47)
        ... 38 more


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':android:mergeLibDexDebugAndroidTest'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.DexMergingTaskDelegate
   > There was a failure while executing work items
      > A failure occurred while executing com.android.build.gradle.internal.tasks.DexMergingWorkAction
         > com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
           Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
           Type org.bitcoindevkit.BdkException$ErrorHandler$lift$1 is defined multiple times: /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/android/build/.transforms/f8f486ba184b26ea1f15591ec62fc9a1/transformed/classes/classes.dex, /Users/steve/git/notmandatory/bdk-ffi/bindings/bdk-kotlin/jvm/build/.transforms/4e2c77aa7006fe94dfc61462ec41c77b/transformed/jetified-jvm/classes.dex

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 8s

Remove "OfflineWallet" and rename "OnlineWallet" to Wallet

Allow broadcasting a signed transaction

Rename TransactionDetails.id to TransactionDetails.txid

Add kotlin package

more platforms than linux, such as osx, and win.

Remove generated bindings code and dylib binary from source control

This kotlin % would just be very small (test/demo source) if we didn't have generated bindings here - and since generated bindings are just outputs, it might be a good idea to isolate them from source control.

We would still need to figure out how to test stuff. For the demo application and tests, I just use ./gradlew right now and run everything from the terminal. There might be a way to run these tests / code from scripts/clis without having to setup a complete kotlin project setup committed to source control

Add swift language bindings

Figure out how to auto-generate documentation

Allow verifying a confirmed transaction

Allow restoring extended keys from mnemonic

Add change descriptor to Wallet

Provide static library as part of bdk-jvm

I know the jars don't ship with the libbdkffi.dylib in them by default. Would a FAT jar be a solution for this or can they just be included with some configuration setting we need to turn on?

Other temporary solution would be to make them available as artifacts for download as part of the release page on GitHub.

Add features to ios example

Allow `interface`s in UDL without a constructor - it's mandatory at the moment

Get the descriptors for a wallet

Remove local.properties file from version control

Create a transaction with single recipient and fee rate

Publish source and docs with bdk-android aar

Wasn't able to get this done in #74.

Allow language support from external crates

Share offline implementation between OnlineWallet and OfflineWallet

Required for #2

Move `LibTest` out of `src` and into `test`

And maybe rename it?

Add swift package

mozilla/application-services ADR 0003

APIs include:

Giving a wallet, return Policy structure (as Dictionary?) for "external" and "internal" descriptors.
When creating a transaction PSBT, specify the "external policy" to use

Expected Outcomes

Update bdk.udl and lib.rs with functions and structs as needed
Update bdk-kotlin or bdk-swift and add tests to cover new spending policy functionality

Resources

Skills Required

Experience with git. Guide
Basic familiarity with rust. First seven chapters of the book
Basic familiarity with Kotlin or Swift
Familiarity with bitcoin descriptors and miniscript policies

Mentor(s)

@artfuldev @notmandatory

Difficulty

Medium

Competency Test (optional)

Install rust, compile bdk-ffi and build and test bdk-swift or bdk-kotlin.
Read through the BDK docs.
Use bdk-cli to walk through the "Spending Policy Demo"
Install and run example bdk-kotlin or bdk-swift example wallet.
Familiarity with basic rust, should be able to write basic structs and functions.

and fork of padawan-wallet

Publish Kotlin, Android and JVM, artifacts to MavenCentral

https://sergiomartinrubio.com/articles/how-to-publish-a-java-library-to-maven-central/

https://weibeld.net/java/publish-to-maven-central.html

https://github.com/rwinch/gradle-publish-ossrh-sample

https://docs.gradle.org/current/userguide/signing_plugin.html

Support more APIs

#63
List unspent UTXOs in Wallet with outpoint, txout, keychain; txout includes script pubkey and value
List transactions with raw transactions
Sign a PSBT with Wallet, optionally assume current blockchain height
Extract a raw transaction from a PSBT
Create a transaction with multiple recipients (and fee rate)
Create a send-all UTXOs transaction (and fee rate)
Allow configuring optional utxos to include, optional unspendable utxo for transactions
Allow adding a spending policy map to transactions

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