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Dave Collins 75432b3c96
multi: Break coinbase dep on standardness rules.
Standardness rules are not the same as consensus rules and it is
important to keep clear separation between them, because standardness
rules can and do change, while the consensus rules must not change
without a specific vote, and even then, the old rules must be kept
around for validation of all blocks prior to any changes introduced by a
successful vote.

Prior to this commit, the blockchain code which enforces the consensus
rule that requires the second output of the coinbase transaction to
contain the height of the block in a provably pruneable nulldata script
push was relying on code in txscript/standard.go, which, as the name of
the file suggests, is specifically intended for code related to
standardness checks.

This introduces a new function in the txscript package named
ExtractCoinbaseNullData which does not rely on any of the code related
to standardness checks and modifies the blockchain code accordingly to
make use of the new function instead.  It also removes the
standardness-dependent GetNullDataContent function which is no longer
used by anything.

Finally, it adds tests in the txscript package to ensure the new
function has the required semantics.
2018-05-08 12:49:40 -05:00
addrmgr addrmgr: Test timestamp update during AddAddress() 2018-05-02 20:47:26 -05:00
blockchain multi: Break coinbase dep on standardness rules. 2018-05-08 12:49:40 -05:00
certgen certgen: Add doc.go and README.md (#883) 2017-10-11 11:32:50 -04:00
chaincfg chainec/dcrec: Remove hybrid pubkey support 2018-03-20 17:45:09 -04:00
cmd dcrctl: Fix --skipverify failing if rpc.cert not found. 2018-05-07 15:57:47 -05:00
connmgr connmgr: Use same Dial func signature as net.Dial 2018-03-05 12:29:26 -06:00
database indexers: Provide interface for index removal. 2018-03-27 18:50:03 -04:00
dcrec chainec/dcrec: Remove hybrid pubkey support 2018-03-20 17:45:09 -04:00
dcrjson dcrjson: Add Expiry field to CreateRawTransactionCmd 2018-05-02 20:49:03 -05:00
dcrutil dcrutil: Disallow creation of hybrid P2PK addrs. 2018-03-20 17:44:25 -04:00
docs docs: Fix links for internal packages. 2018-03-09 16:16:58 +00:00
gcs multi: Add initial committed filter (CF) support 2018-03-30 13:52:12 -04:00
hdkeychain hdkeychain: Satisfy fmt.Stringer interface. 2018-04-30 10:33:33 -05:00
limits docs: document packages and fix typo 2018-01-08 16:04:45 -06:00
mempool mempool/mining: TxSource separation. 2018-03-05 11:38:36 -06:00
mining mempool/mining: TxSource separation. 2018-03-05 11:38:36 -06:00
peer multi: Remove everything to do about bloom filters. 2018-05-01 11:43:32 -05:00
release Add example service files. 2017-03-23 02:07:08 -05:00
rpcclient dcrjson: Add Expiry field to CreateRawTransactionCmd 2018-05-02 20:49:03 -05:00
rpctest multi: fix some maligned linter warnings 2018-02-13 14:50:33 -06:00
sampleconfig multi: Remove everything to do about bloom filters. 2018-05-01 11:43:32 -05:00
txscript multi: Break coinbase dep on standardness rules. 2018-05-08 12:49:40 -05:00
wire multi: Remove everything to do about bloom filters. 2018-05-01 11:43:32 -05:00
.dockerignore Run testing and linting in a Dockerfile. 2017-05-30 11:39:19 -04:00
.gitignore Improve gitignore. 2017-10-11 14:52:00 -05:00
.travis.yml travis: test in docker container 2018-02-18 10:27:18 -06:00
blocklogger.go Merge remaining dcrutil code into a dcrd package. 2017-10-11 22:06:36 -04:00
blockmanager.go mining: Use single uint64 coinbase extra nonce. 2018-03-04 16:40:01 -06:00
CHANGES multi: Properly capitalize Decred. 2018-03-01 17:41:35 -06:00
config.go multi: Correct clean and expand path handling. 2018-05-03 16:21:35 -05:00
cpuminer.go cpuminer: Use header for extra nonce. 2018-03-05 12:59:32 -06:00
dcrd.go main: Correct mem profile error message. 2018-05-03 08:17:12 +08:00
doc.go multi: Remove everything to do about bloom filters. 2018-05-01 11:43:32 -05:00
Dockerfile-1.9 travis: test in docker container 2018-02-18 10:27:18 -06:00
Dockerfile-1.10 travis: test in docker container 2018-02-18 10:27:18 -06:00
Gopkg.lock dcrjson: Add VerifySeedCmd. 2018-03-30 14:00:41 -05:00
Gopkg.toml dep: sync 2018-02-26 19:33:48 -06:00
ipc.go travis: add ineffassign linter 2017-12-01 09:14:04 -05:00
LICENSE multi: Add initial committed filter (CF) support 2018-03-30 13:52:12 -04:00
log.go multi: remove unused funcs and vars 2017-12-07 21:46:25 -06:00
mining_test.go mining_test: add edge conditions from btcd. 2017-08-31 00:28:36 -05:00
mining.go blockchain: CheckConnectBlockTemplate with tests. 2018-05-03 13:53:24 -05:00
miningerror.go blockchain: Rework to use new db interface. 2016-08-18 15:42:18 -04:00
params.go multi: Properly capitalize Decred. 2018-03-01 17:41:35 -06:00
README.md Adjust README.md for new Go version 2018-03-01 20:15:08 -06:00
rpcserver_test.go rpctest: Gate rpctest-based behind a build tag. 2017-07-26 12:43:26 -05:00
rpcserver.go blockchain: CheckConnectBlockTemplate with tests. 2018-05-03 13:53:24 -05:00
rpcserverhelp_test.go blockchain: Rework to use new db interface. 2016-08-18 15:42:18 -04:00
rpcserverhelp.go dcrjson: Add Expiry field to CreateRawTransactionCmd 2018-05-02 20:49:03 -05:00
rpcwebsocket.go main: Make func definition style consistent. 2018-03-04 14:31:43 -06:00
run_tests.sh travis: test in docker container 2018-02-18 10:27:18 -06:00
server.go multi: Remove everything to do about bloom filters. 2018-05-01 11:43:32 -05:00
service_windows.go multi: Properly capitalize Decred. 2018-03-01 17:41:35 -06:00
signal.go dcrd: Simplify shutdown signal handling logic sync. 2016-11-18 12:06:55 -06:00
signalsigterm.go Add pipes for parent process IPC. (#311) 2016-08-31 10:45:16 -04:00
upnp.go multi: Error descriptions are in lower case. 2017-09-08 18:03:59 +02:00
version.go release: Bump for v1.2.0. 2018-03-07 13:19:37 -06:00

dcrd

Build Status ISC License GoDoc

dcrd is a Decred full node implementation written in Go (golang).

This acts as a chain daemon for the Decred cryptocurrency. dcrd maintains the entire past transactional ledger of Decred and allows relaying of transactions to other Decred nodes across the world. To read more about Decred please see the project documentation.

Note: To send or receive funds and join Proof-of-Stake mining, you will also need dcrwallet.

This project is currently under active development and is in a Beta state. It is extremely stable and has been in production use since February 2016.

It is forked from btcd which is a bitcoin full node implementation written in Go. btcd is a ongoing project under active development. Because dcrd is constantly synced with btcd codebase, it will get the benefit of btcd's ongoing upgrades to peer and connection handling, database optimization and other blockchain related technology improvements.

Requirements

Go 1.9 or newer.

Getting Started

  • dcrd (and utilities) will now be installed in either $GOROOT/bin or $GOPATH/bin depending on your configuration. If you did not already add the bin directory to your system path during Go installation, we recommend you do so now.

Updating

Windows

Install a newer MSI

Linux/BSD/MacOSX/POSIX - Build from Source

  • Dep

    Dep is used to manage project dependencies and provide reproducible builds. To install:

    go get -u github.com/golang/dep/cmd/dep

Unfortunately, the use of dep prevents a handy tool such as go get from automatically downloading, building, and installing the source in a single command. Instead, the latest project and dependency sources must be first obtained manually with git and dep, and then go is used to build and install the project.

Getting the source:

For a first time installation, the project and dependency sources can be obtained manually with git and dep (create directories as needed):

git clone https://github.com/decred/dcrd $GOPATH/src/github.com/decred/dcrd
cd $GOPATH/src/github.com/decred/dcrd
dep ensure
go install . ./cmd/...

To update an existing source tree, pull the latest changes and install the matching dependencies:

cd $GOPATH/src/github.com/decred/dcrd
git pull
dep ensure
go install . ./cmd/...

For more information about Decred and how to set up your software please go to our docs page at docs.decred.org.

Docker

All tests and linters may be run in a docker container using the script run_tests.sh. This script defaults to using the current supported version of go. You can run it with the major version of Go you would like to use as the only arguement to test a previous on a previous version of Go (generally Decred supports the current version of Go and the previous one).

./run_tests.sh 1.9

To run the tests locally without docker:

./run_tests.sh local

Contact

If you have any further questions you can find us at:

  • irc.freenode.net (channel #decred)
  • webchat
  • forum.decred.org
  • decred.slack.com

Issue Tracker

The integrated github issue tracker is used for this project.

Documentation

The documentation is a work-in-progress. It is located in the docs folder.

License

dcrd is licensed under the copyfree ISC License.