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6 changes: 4 additions & 2 deletions .github/workflows/build.yml
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Expand Up @@ -62,6 +62,8 @@ jobs:
- name: Pin tokio to 1.14 for Rust 1.45
if: "matrix.build-net-old-tokio"
run: cargo update -p tokio --precise "1.14.0" --verbose
env:
CARGO_NET_GIT_FETCH_WITH_CLI: "true"
- name: Build on Rust ${{ matrix.toolchain }} with net-tokio
if: "matrix.build-net-tokio && !matrix.coverage"
run: cargo build --verbose --color always
Expand Down Expand Up @@ -232,14 +234,14 @@ jobs:
EXPECTED_ROUTING_GRAPH_SNAPSHOT_SHASUM: 05a5361278f68ee2afd086cc04a1f927a63924be451f3221d380533acfacc303
- name: Fetch rapid graph sync reference input
run: |
curl --verbose -L -o lightning-rapid-gossip-sync/res/full_graph.lngossip https://bitcoin.ninja/ldk-compressed_graph-bc08df7542-2022-05-05.bin
curl --verbose -L -o lightning-rapid-gossip-sync/res/full_graph.lngossip https://bitcoin.ninja/ldk-compressed_graph-285cb27df79-2022-07-21.bin
echo "Sha sum: $(sha256sum lightning-rapid-gossip-sync/res/full_graph.lngossip | awk '{ print $1 }')"
if [ "$(sha256sum lightning-rapid-gossip-sync/res/full_graph.lngossip | awk '{ print $1 }')" != "${EXPECTED_RAPID_GOSSIP_SHASUM}" ]; then
echo "Bad hash"
exit 1
fi
env:
EXPECTED_RAPID_GOSSIP_SHASUM: 9637b91cea9d64320cf48fc0787c70fe69fc062f90d3512e207044110cadfd7b
EXPECTED_RAPID_GOSSIP_SHASUM: e0f5d11641c11896d7af3a2246d3d6c3f1720b7d2d17aab321ecce82e6b7deb8
- name: Test with Network Graph on Rust ${{ matrix.toolchain }}
run: |
cd lightning
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2 changes: 2 additions & 0 deletions .gitignore
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Expand Up @@ -8,4 +8,6 @@ lightning-c-bindings/a.out
Cargo.lock
.idea
lightning/target
lightning/ldk-net_graph-*.bin
no-std-check/target

57 changes: 57 additions & 0 deletions CHANGELOG.md
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@@ -1,3 +1,60 @@
# 0.0.110 - 2022-07-26

## API Updates
* `ChannelManager::send_probe` and `Score::probe_{failed,successful}` have
been added to make probing more explicit, as well as new
`Event::Probe{Failed,Successful}` events (#1567).
* `ProbabilisticScoringParameters::banned_nodes` has been renamed
`manual_node_penalties` and changed to take msat penalties (#1592).
* Per-payment tracking of failed paths was added to enable configuration of
`ProbabilisticScoringParameters::considered_impossible_penalty_msat` (#1600)
* `ProbabilisticScoringParameters::base_penalty_amount_multiplier_msat` was
added to allow a penalty that is only amount-dependent (#1617).
* `ProbabilisticScoringParameters::amount_penalty_multiplier_msat` was renamed
`liquidity_penalty_amount_multiplier_msat` (#1617).
* A new `Event::HTLCHandlingFailed` has been added which provides visibility
into failures to forward/claim accepted HTLCs (#1403).
* Support has been added for DNS hostnames in the `NetAddress` type, see
[BOLT PR #911](https://github.com/lightning/bolts/pull/911) (#1553).
* `GossipSync` now has `rapid`, `p2p`, and `none` constructors (#1618).
* `lightning-net-tokio` no longer requires types to be in `Arc`s (#1623).
* The `htlc_maximum_msat` field is now required in `ChannelUpdate` gossip
messages. In tests this rejects < 1% of channels (#1519).
* `ReadOnlyNetworkGraph::{channel,node}` have been added to query for
individual channel/node data, primarily for bindings users (#1543).
* `FeeEstimator` implementations are now wrapped internally to ensure values
below 253 sats/kW are never used (#1552).
* Route selection no longer attempts to randomize path selection. This is
unlikely to lead to a material change in the paths selected (#1610).

## Bug Fixes
* Fixed a panic when deserializing `ChannelDetails` objects (#1588).
* When routing, channels are no longer fully saturated before MPP splits are
generated, instead a configuration knob was added as
`PaymentParameters::max_channel_saturation_power_of_half` (#1605).
* Fixed a panic which occurred in `ProbabilisticScorer` when wallclock time
goes backwards across a restart (#1603).

## Serialization Compatibility
* All new fields are ignored by prior versions of LDK. All new fields are not
present when reading objects serialized by prior versions of LDK.
* Channel information written in the `NetworkGraph` which is missing
`htlc_maximum_msat` may be dropped on deserialization (#1519).
* Similarly, node information written in the `NetworkGraph` which contains an
invalid hostname may be dropped on deserialization (#1519).

In total, this release features 79 files changed, 2935 insertions, 1363
deletions in 52 commits from 9 authors, in alphabetical order:
* Duncan Dean
* Elias Rohrer
* Jeffrey Czyz
* Matt Corallo
* Max Fang
* Viktor Tigerström
* Willem Van Lint
* Wilmer Paulino
* jurvis

# 0.0.109 - 2022-07-01

## API Updates
Expand Down
148 changes: 82 additions & 66 deletions CONTRIBUTING.md
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@@ -1,53 +1,64 @@
Contributing to Rust-Lightning
==============================

The Rust-Lightning project operates an open contributor model where anyone is
welcome to contribute towards development in the form of peer review, documentation,
testing and patches.

Anyone is invited to contribute without regard to technical experience, "expertise", OSS
experience, age, or other concern. However, the development of cryptocurrencies demands a
high-level of rigor, adversarial thinking, thorough testing and risk-minimization.
Any bug may cost users real money. That being said, we deeply welcome people contributing
for the first time to an open source project or pick up Rust while contributing. Don't be shy,
you'll learn.

Communications Channels
The `rust-lightning` project operates an open contributor model where anyone is
welcome to contribute towards development in the form of peer review,
documentation, testing and patches.

Anyone is invited to contribute without regard to technical experience,
"expertise", OSS experience, age, or other concern. However, the development of
cryptocurrencies demands a high-level of rigor, adversarial thinking, thorough
testing and risk-minimization. Any bug may cost users real money. That being
said, we deeply welcome people contributing for the first time to an open source
project or pick up Rust while contributing. Don't be shy, you'll learn.

Communication Channels
-----------------------

Communication about Rust-Lightning happens primarily on #ldk-dev on the
[LDK slack](http://www.lightningdevkit.org/), but also #rust-bitcoin on IRC Freenode.
Communication about the development of LDK and `rust-lightning` happens
primarily on the [LDK Discord](https://discord.gg/5AcknnMfBw) in the `#ldk-dev`
channel. Additionally, live LDK devevelopment meetings are held every other
Monday 19:00 UTC in the [LDK Dev Jitsi Meeting
Room](https://meet.jit.si/ldkdevmeeting). Upcoming events can be found in the
[LDK calendar](https://calendar.google.com/calendar/embed?src=c_e6fv6vlshbpoob2mmbvblkkoj4%40group.calendar.google.com).

Contributors starting out with the Rust language are welcome to discuss and ask
for help in the `#rust-101` channel on LDK Discord.

Discussion about code base improvements happens in GitHub issues and on pull
requests.

Major projects are tracked [here](https://github.com/lightningdevkit/rust-lightning/projects).
The LDK roadmap is tracked [here](https://github.com/orgs/lightningdevkit/projects/2).

Major milestones are tracked [here](https://github.com/lightningdevkit/rust-lightning/milestones?direction=asc&sort=title&state=open).

Getting Started
---------------

First and foremost, start small.

This doesn't mean don't be ambitious with the breadth and depth of your contributions but rather
understand the project culture before investing an asymmetric number of hours on
development compared to your merged work.
This doesn't mean don't be ambitious with the breadth and depth of your
contributions but rather understand the project culture before investing an
asymmetric number of hours on development compared to your merged work.

Browsing through the [meeting minutes](https://github.com/lightningdevkit/rust-lightning/wiki/Meetings)
is a good first step. You will learn who is working on what, how releases are drafted, what are the
pending tasks to deliver, where you can contribute review bandwidth, etc.
is a good first step. You will learn who is working on what, how releases are
drafted, what are the pending tasks to deliver, where you can contribute review
bandwidth, etc.

Even if you have an extensive open source background or sound software engineering skills, consider
that the reviewers' comprehension of the code is as much important as technical correctness.
Even if you have an extensive open source background or sound software
engineering skills, consider that the reviewers' comprehension of the code is as
much important as technical correctness.

It's very welcome to ask for review, either on IRC or LDK Slack. And also for reviewers, it's nice
to provide timelines when you hope to fulfill the request while bearing in mind for both sides that's
a "soft" commitment.
It's very welcome to ask for review on LDK Discord. And also for reviewers, it's
nice to provide timelines when you hope to fulfill the request while bearing in
mind for both sides that's a "soft" commitment.

If you're eager to increase the velocity of the dev process, reviewing other contributors work is
the best you can do while waiting review on yours.
If you're eager to increase the velocity of the dev process, reviewing other
contributors work is the best you can do while waiting review on yours.

Also, getting familiar with the [glossary](GLOSSARY.md) will streamline discussions with regular contributors.
Also, getting familiar with the [glossary](GLOSSARY.md) will streamline
discussions with regular contributors.

Contribution Workflow
---------------------
Expand Down Expand Up @@ -80,89 +91,94 @@ our GitHub Actions). Also, the compatibility for LDK object serialization is
currently ensured back to and including crate version 0.0.99 (see the
[changelog](CHANGELOG.md)).

Commits should cover both the issue fixed and the solution's rationale.
These [guidelines](https://chris.beams.io/posts/git-commit/) should be kept in mind.
Commits should cover both the issue fixed and the solution's rationale. These
[guidelines](https://chris.beams.io/posts/git-commit/) should be kept in mind.

To facilitate communication with other contributors, the project is making use of
GitHub's "assignee" field. First check that no one is assigned and then comment
suggesting that you're working on it. If someone is already assigned, don't hesitate
to ask if the assigned party or previous commenters are still working on it if it has
been awhile.
To facilitate communication with other contributors, the project is making use
of GitHub's "assignee" field. First check that no one is assigned and then
comment suggesting that you're working on it. If someone is already assigned,
don't hesitate to ask if the assigned party or previous commenters are still
working on it if it has been awhile.

Peer review
-----------

Anyone may participate in peer review which is expressed by comments in the pull
request. Typically reviewers will review the code for obvious errors, as well as
test out the patch set and opine on the technical merits of the patch. PR should
be reviewed first on the conceptual level before focusing on code style or grammar
fixes.
be reviewed first on the conceptual level before focusing on code style or
grammar fixes.

Coding Conventions
------------------

Use tabs. If you want to align lines, use spaces. Any desired alignment should
display fine at any tab-length display setting.

Our CI enforces [clippy's](https://github.com/rust-lang/rust-clippy) default linting
[settings](https://rust-lang.github.io/rust-clippy/rust-1.39.0/index.html).
This includes all lint groups except for nursery, pedantic, and cargo in addition to allowing the following lints:
`erasing_op`, `never_loop`, `if_same_then_else`.
Our CI enforces [clippy's](https://github.com/rust-lang/rust-clippy) default
linting
[settings](https://rust-lang.github.io/rust-clippy/rust-1.39.0/index.html). This
includes all lint groups except for nursery, pedantic, and cargo in addition to
allowing the following lints: `erasing_op`, `never_loop`, `if_same_then_else`.

If you use rustup, feel free to lint locally, otherwise you can just push to CI for automated linting.
If you use rustup, feel free to lint locally, otherwise you can just push to CI
for automated linting.

```bash
rustup component add clippy
cargo clippy
```

Significant structures that users persist should always have their serialization methods (usually
`Writeable::write` and `ReadableArgs::read`) begin with
Significant structures that users persist should always have their serialization
methods (usually `Writeable::write` and `ReadableArgs::read`) begin with
`write_ver_prefix!()`/`read_ver_prefix!()` calls, and end with calls to
`write_tlv_fields!()`/`read_tlv_fields!()`.

Updates to the serialized format which has implications for backwards or forwards compatibility
must be included in release notes.
Updates to the serialized format which has implications for backwards or
forwards compatibility must be included in release notes.

Security
--------

Security is the primary focus of Rust-Lightning; disclosure of security vulnerabilites
helps prevent user loss of funds. If you believe a vulnerability may affect other Lightning
implementations, please inform them.
Security is the primary focus of `rust-lightning`; disclosure of security
vulnerabilites helps prevent user loss of funds. If you believe a vulnerability
may affect other Lightning implementations, please inform them.

Note that Rust-Lightning is currently considered "pre-production" during this time, there
is no special handling of security issues. Please simply open an issue on Github.
You can find further information on submitting (possible) vulnerabilities in the
[security policy](SECURITY.md).

Testing
-------

Related to the security aspect, Rust-Lightning developers take testing
very seriously. Due to the modular nature of the project, writing new functional
tests is easy and good test coverage of the codebase is an important goal. Refactoring
the project to enable fine-grained unit testing is also an ongoing effort.
Related to the security aspect, `rust-lightning` developers take testing very
seriously. Due to the modular nature of the project, writing new functional
tests is easy and good test coverage of the codebase is an important goal.
Refactoring the project to enable fine-grained unit testing is also an ongoing
effort.

Fuzzing is heavily encouraged: you will find all related material under `fuzz/`

Mutation testing is work-in-progress; any contribution there would be warmly welcomed.
Mutation testing is work-in-progress; any contribution there would be warmly
welcomed.

C/C++ Bindings
--------------

You can learn more about the C/C++ bindings that are made available by reading the
[C/C++ Bindings README](lightning-c-bindings/README.md). If you are not using the C/C++ bindings,
you likely don't need to worry about them, and during their early experimental phase we are not
requiring that pull requests keep the bindings up to date (and, thus, pass the bindings_check CI
run). If you wish to ensure your PR passes the bindings generation phase, you should run the
`genbindings.sh` script in the top of the directory tree to generate, build, and test C bindings on
your local system.
You can learn more about the C/C++ bindings that are made available by reading
the [C/C++ Bindings README](https://github.com/lightningdevkit/ldk-c-bindings/blob/main/lightning-c-bindings/README.md).
If you are not using the C/C++ bindings, you likely don't need to worry about
them, and during their early experimental phase we are not requiring that pull
requests keep the bindings up to date (and, thus, pass the `bindings_check` CI
run). If you wish to ensure your PR passes the bindings generation phase, you
should run the `genbindings.sh` script in the top of the directory tree to
generate, build, and test C bindings on your local system.

Going further
-------------

You may be interested by Jon Atack guide on [How to review Bitcoin Core PRs](https://github.com/jonatack/bitcoin-development/blob/master/how-to-review-bitcoin-core-prs.md)
You may be interested by Jon Atack's guide on [How to review Bitcoin Core PRs](https://github.com/jonatack/bitcoin-development/blob/master/how-to-review-bitcoin-core-prs.md)
and [How to make Bitcoin Core PRs](https://github.com/jonatack/bitcoin-development/blob/master/how-to-make-bitcoin-core-prs.md).
While there are differences between the projects in terms of context and maturity, many
of the suggestions offered apply to this project.
While there are differences between the projects in terms of context and
maturity, many of the suggestions offered apply to this project.

Overall, have fun :)
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