In some protocols it is preferred to serialize consensus-encodable types
using consensus encoding. E.g. serialize `Transaction` as hex-encoded
string in Json in Bitcoin Core RPC protocol. This change provides
adapter to make this easier.
The adapter allows providing custom byte-to-string encoder for more
exotic cases and provides a hex implementation which should be useful in
majority of the cases.
Should help with #765
In preparation for removing the `util` module move the `base58` module
to the crate root. This is likely not the final resting place for this
module but it is a step in the right direction.
Includes addition of rustfmt attribute to skip formatting the digits
array. No other changes to the `base58` module.
We are trying to flatten the `util` module. The `taproot` module can
live in the crate root. If/when we create a `crypto` module/crate we may
wish to pull some stuff out of this module but for now moving it gets us
closer to removing `util` without making the directory structure any
worse.
Includes adding rustfmt attributes to skip formatting of macros.
Done as part of flattening util.
Currently in `util` module we have a bunch of modules that provide
cryptography related functionality.
Create a `crypto` module and move into it the following:
- ecdsa
- schnorr
- key
To improve uniformity and ergonomics, do the following re-names while we
are at it:
- EcdsaSig -> ecdsa::Signature
- SchnorrSig -> schnorr::Signature
- EcdsaSigError -> ecdsa::Error
- SchnorrSigError -> schnorr::Error
- InvalidSchnorrSigSize -> InvalidSignatureSize (this is an error enum variant)
When we moved to edition 2018 the use of `extern` became unnecessary and
we moved to using `pub use` for re-exports. It was observed however that
`pub extern crate` is more readable.
Improve crate root re-exports by doing:
- Use `pub extern crate foo` to re-export foo.
- Fix docs attribute for optional dependency `bitcoinconsensus`.
- Re-order to how rustfmt would put them.
We now have an `error` module but the `util::Error`, which is a general
error, is not in it.
Make `Error` more ergonomic to use by doing:
- Move the `util::Error` to `crate::error::Error`
- Re-export it from the crate root since it is our most general error
- Re-export and deprecated it from `util`
Move the `merkleblock` module into the `merkle_tree` module in a
submodule called `block`. In order to do the minimum amount of changes
in this patch DO NOT rename types to improved naming and reduce stutter.
Note:
- block module is private
- the three types are re-exported from `merkle_block`
This patch purposefully does the minimum amount of changes because there
a whole bunch of improvements to the old "merkleblock" module that are
coming next.
Currently the types in the block module have longer names than
necessary, "header" and "version" identifiers contain the word "block",
this is unnecessary because we can write `block::Header` instead of
`BlockHeader` when context is required. This allows us to use the naked
type `Header` inside the `block` module with no loss of clarity.
We are stuck with `BlockHash` because the type is defined along with all
the other hash types in `hash_types`, leave it as is for now but
re-export it from the `block` module to assist in putting types that are
used together in scope in the same place, making import statements more
ergonomic.
9a1623c1dc Re-export hashbrown when enabled (Tobin C. Harding)
Pull request description:
`hashbrown` used to be exported until commit 23ee0930c7 which removed the `pub extern crate` declaration.
Found thanks to afilini (#1342)!
ACKs for top commit:
apoelstra:
ACK 9a1623c1dc
Kixunil:
ACK 9a1623c1dc
Tree-SHA512: 0363781dc06211eec59246ce54582220674d5ab2bd6e62ad15eeb97b0df6435cdf23df8306131c176b6003dde31d1e376f52981f2e69e9d2529876d3ada727e0
b6f9e47dba Fix `no_std` when `bitcoinconsensus` is enabled (Martin Habovstiak)
Pull request description:
`default-features = false` was missing previously but blindly adding it would lead to subtle risk of breaking when a crate not needing `std` depends on `bitcoinconsensus` and simultaneously another crate not needing `bitcoinconsensus` depends on `std` and another crate depends on them both.
This change fixes it by introducing `bitcoinconsensus-std` feature flag and provides a fallback if the flag is off. Unfortunately the fallback has to use a bit of reasonable `unsafe` due to limitations of upcasting.
The only safe alternatives are not do it and provide worse experience for crates that are affected by the problem above or break the API, which couldn't be backported and would be more annoying to use.
Closes#1343
This is considered PoC PR as I realized the possibility of the hack (and necessity of `unsafe`) at the last moment. Things like tests and modifying CONTRIBUTING to change the stance on `unsafe` will be added if `unsafe` is ACKed.
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tACK b6f9e47dba
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ACK b6f9e47dba
Tree-SHA512: 3a2845f4701c94ff6214749fa490aecf3fd96089df31b15f9d3e0afe3c74329ff2b9054d51244358a79f928aa9d4cf4001fc3ec40a9b0e189323544c4480c709
b84e1d46c0 Move amount module out of util (Tobin C. Harding)
Pull request description:
Done as part of flattening the `util` module. Simply move the `amount` module out of the `util` module and to the crate root. Justified by the fact that the `Amount` type is more-or-less a "primitive" bitcoin type.
ACKs for top commit:
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sanket1729:
ACK b84e1d46c0
Tree-SHA512: 9ec707f49b7ab29f573be22b366d2ea9c1a8e4b27e80350d521b9c6607fca4142f079648cb739ba8590edd97c21a00029c3647c4c8cebe47cc2dfee1b10b8b39
The `util::hash` module provides two functions for computing a merkle
root from a list/iterator of hashes.
Rename the module to `merkle_root` and move it to the crate root,
deprecate the original functions.
Done as part of flattening the `util` module.
dea9b1d1e0 Re-export base64 when enabled (Alekos Filini)
Pull request description:
`base64` used to be exported until commit 23ee0930c7 which removed the `pub extern crate` declaration.
ACKs for top commit:
Kixunil:
ACK dea9b1d1e0
apoelstra:
ACK dea9b1d1e0
Tree-SHA512: 2f32b6676aab9881bab9eb0ae61910ec0d4b60cb17c8a7bf8155ec4a13e50abce0061b52f4e81b106b938e99cb68329d027291c1702213cfa2a46734ebadb488
`default-features = false` was missing previously but blindly adding it
would lead to subtle risk of breaking when a crate not needing `std`
depends on `bitcoinconsensus` and simultaneously another crate not
needing `bitcoinconsensus` depends on `std` and another crate depends on
them both.
This change fixes it by introducing `bitcoinconsensus-std` feature flag
and provides a fallback if the flag is off. Unfortunately the fallback
has to use a bit of reasonable `unsafe` due to limitations of upcasting.
The only safe alternatives are not do it and provide worse experience
for crates that are affected by the problem above or break the API,
which couldn't be backported and would be more annoying to use.
Closes#1343
Done as part of the effort to flatten the `util` module.
The `sighash` module can stand alone in the crate root, it provides a
discreet set of functionality - the `SighashCache` and associated types.
Done as part of flattening the `util` module. Simply move the `amount`
module out of the `util` module and to the crate root. Justified by the
fact that the `Amount` type is more-or-less a "primitive" bitcoin type.
We are attempting to flatten the `util` module; move the `bip152` module
to the crate root out of `util`.
Currently `src/util/` is ignored by the formatter so this move causes
the `bip152` module to be formatted.
Currently we use the `Uint256` type to represent two proof of work
integers, namely target and difficulty (work).
It would be nice to not have a public integer type that is not fully
implemented (i.e., does not implement arithmetic etc as do integer types
in stdlib). Instead of implementing all the stdlib functions we can
instead add two new wrapper types, since these are not general purpose
integers they do not need to implement anything we do not need to use.
- Add a `pow` module.
- Put a modified version of `Uint256` to `pow`.
- Add two new wrapper types `Target` and `Difficulty`.
- Only implement methods that we use on each type.
Note this patch does not remove the original `Uint256`, that will be
done as a separate patch.
e24c91e9ca sign_message: Run cargo fmt (Tobin C. Harding)
041d6a8097 Move and deprecate script_find_and_remove (Tobin C. Harding)
Pull request description:
Done as part of [flattening util](https://github.com/rust-bitcoin/rust-bitcoin/issues/639).
Move some code out of `misc` then re-name the module to `signature` and move it to the crate root.
- Patch 1: Move a single public function, needs review that destination module is ok. I did consider re-naming the function to remove `script_` prefix but decided to leave it as is.
- Patch 2: Re-names `misc` -> `signature` and puts it in the crate root
- Patch 3: Runs the formatter on `signature` module
All changes include deprecated re-exports.
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ACK e24c91e9ca
Tree-SHA512: 37efc69595cbacd75c27f8fa6edd6bc168c04f1cdd230b49ab97f8a07e5b25ea87c00de017b315987bfe84d1b652a2c301c8f0132e4da988af1d15b687b47333
2001f44e46 Try to fix up sighash export mess (Tobin C. Harding)
Pull request description:
Recently we moved a few types from `transaction` to `sighash`, while doing so I erroneously annotated code with the `deprecated` attribute hoping it would give downstream users a gentle upgrade experience. It turns out `deprecated` only works on functions.
During that same work, we re-exported from the crate root a bunch of types from the `sighash` module that probably should not have been re-exported. We are currently trying to create a nice clean API surface, in an effort to move in the right direction we should remove the re-exports and just re-export the `sighash` module.
Try to clean up the sighash export mess by doing:
- Remove the re-exports from the `transaction` module
- Remove crate level re-exports of `sighash` module types
- Re-export `sighash` module
Note, this patch is a breaking API change, justified by the fact that there is no good way to gently lead downstream when moving types since types cannot be deprecated with the `deprecated` attribute.
ACKs for top commit:
apoelstra:
ACK 2001f44e46
Kixunil:
ACK 2001f44e46
Tree-SHA512: 42a08bc15bacd4cf7c3fec002ddb29afe5b1be3c4eb74fbd8c63a9333c0d45cbc8493027532f5db6a3930d49b1e83048826371e0ed7d4ac3dc611e5885540bce
We are attempting to flatten the `util` module; move the `bip32` module
to the crate root out of `util`.
Currently `src/util/` is ignored by the formatter, this patch does not
do formatting, will be done later.
Recently we moved a few types from `transaction` to `sighash`, while
doing so I erroneously annotated code with the `deprecated` attribute
hoping it would give downstream users a gentle upgrade experience. It
turns out `deprecated` only works on functions.
During that same work, we re-exported from the crate root a bunch of
types from the `sighash` module that probably should not have been
re-exported. We are currently trying to create a nice clean API surface,
in an effort to move in the right direction we should remove the
re-exports and just re-export the `sighash` module.
Try to clean up the sighash export mess by doing:
- Remove the re-exports from the `transaction` module
- Remove crate level re-exports of `sighash` module types
- Re-export `sighash` module
Note, this patch is a breaking API change, justified by the fact that
there is no good way to gently lead downstream when moving types since
types cannot be deprecated with the `deprecated` attribute.
Done as part of flattening the `util` module.
We have a function in `util::misc` that operates on scripts, it is an
implementation of `FindAndDelete` from Bitcoin Core and is primarily
useful for supporting `CODESEPARATOR`, which we do not support.
Move the public `script_find_and_remove` function out of `util/misc.rs` and into
`util/mod.rs`, delete the testing and deprecate the function.
Create a directory `bitcoin` and move into it the following as is with
no code changes:
- src
- Cargo.toml
- contrib
- test_data
- examples
Then do:
- Add a workspace to the repository root directory.
- Add the newly created `bitcoin` crate to the workspace.
- Exclude `fuzz` and `embedded` crates from the workspace.
- Add a contrib/test.sh script that runs contrib/test.sh in each
sub-crate
- Fix the bitcoin/contrib/test.sh script
Martin Habovstiak
Tobin C. Harding
Andrew Poelstra
Alekos Filini