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kevacoin/doc/release-process.md

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Release Process

Before every release candidate:

Before every minor and major release:

  • Update bips.md to account for changes since the last release.
  • Update version in configure.ac (don't forget to set CLIENT_VERSION_IS_RELEASE to true)
  • Write release notes (see below)
  • Update src/chainparams.cpp nMinimumChainWork with information from the getblockchaininfo rpc.
  • Update src/chainparams.cpp defaultAssumeValid with information from the getblockhash rpc.
    • The selected value must not be orphaned so it may be useful to set the value two blocks back from the tip.
    • Testnet should be set some tens of thousands back from the tip due to reorgs there.
    • This update should be reviewed with a reindex-chainstate with assumevalid=0 to catch any defect that causes rejection of blocks in the past history.

Before every major release:

  • Update hardcoded seeds, see this pull request for an example.
  • Update BLOCK_CHAIN_SIZE to the current size plus some overhead.
  • Update src/chainparams.cpp chainTxData with statistics about the transaction count and rate.
  • Update version of contrib/gitian-descriptors/*.yml: usually one'd want to do this on master after branching off the release - but be sure to at least do it before a new major release

First time / New builders

If you're using the automated script (found in contrib/gitian-build.sh), then at this point you should run it with the "--setup" command. Otherwise ignore this.

Check out the source code in the following directory hierarchy.

cd /path/to/your/toplevel/build
git clone https://github.com/kevacoin-project/gitian.sigs.ltc.git
git clone https://github.com/kevacoin-project/kevacoin-detached-sigs.git
git clone https://github.com/devrandom/gitian-builder.git
git clone https://github.com/kevacoin-project/kevacoin.git

Kevacoin maintainers/release engineers, suggestion for writing release notes

Write release notes. git shortlog helps a lot, for example:

git shortlog --no-merges v(current version, e.g. 0.7.2)..v(new version, e.g. 0.8.0)

(or ping @wumpus on IRC, he has specific tooling to generate the list of merged pulls and sort them into categories based on labels)

Generate list of authors:

git log --format='%aN' "$*" | sort -ui | sed -e 's/^/- /'

Tag version (or release candidate) in git

git tag -s v(new version, e.g. 0.8.0)

Setup and perform Gitian builds

If you're using the automated script (found in contrib/gitian-build.sh), then at this point you should run it with the "--build" command. Otherwise ignore this.

Setup Gitian descriptors:

pushd ./kevacoin
export SIGNER=(your Gitian key, ie bluematt, sipa, etc)
export VERSION=(new version, e.g. 0.8.0)
git fetch
git checkout v${VERSION}
popd

Ensure your gitian.sigs.ltc are up-to-date if you wish to gverify your builds against other Gitian signatures.

pushd ./gitian.sigs.ltc
git pull
popd

Ensure gitian-builder is up-to-date:

pushd ./gitian-builder
git pull
popd

Fetch and create inputs: (first time, or when dependency versions change)

pushd ./gitian-builder
mkdir -p inputs
wget -P inputs https://bitcoincore.org/cfields/osslsigncode-Backports-to-1.7.1.patch
wget -P inputs http://downloads.sourceforge.net/project/osslsigncode/osslsigncode/osslsigncode-1.7.1.tar.gz
popd

Create the OS X SDK tarball, see the OS X readme for details, and copy it into the inputs directory.

Optional: Seed the Gitian sources cache and offline git repositories

By default, Gitian will fetch source files as needed. To cache them ahead of time:

pushd ./gitian-builder
make -C ../kevacoin/depends download SOURCES_PATH=`pwd`/cache/common
popd

Only missing files will be fetched, so this is safe to re-run for each build.

NOTE: Offline builds must use the --url flag to ensure Gitian fetches only from local URLs. For example:

pushd ./gitian-builder
./bin/gbuild --url kevacoin=/path/to/kevacoin,signature=/path/to/sigs {rest of arguments}
popd

The gbuild invocations below DO NOT DO THIS by default.

Build and sign Kevacoin Core for Linux, Windows, and OS X:

pushd ./gitian-builder
./bin/gbuild --num-make 2 --memory 3000 --commit kevacoin=v${VERSION} ../kevacoin/contrib/gitian-descriptors/gitian-linux.yml
./bin/gsign --signer $SIGNER --release ${VERSION}-linux --destination ../gitian.sigs.ltc/ ../kevacoin/contrib/gitian-descriptors/gitian-linux.yml
mv build/out/kevacoin-*.tar.gz build/out/src/kevacoin-*.tar.gz ../

./bin/gbuild --num-make 2 --memory 3000 --commit kevacoin=v${VERSION} ../kevacoin/contrib/gitian-descriptors/gitian-win.yml
./bin/gsign --signer $SIGNER --release ${VERSION}-win-unsigned --destination ../gitian.sigs.ltc/ ../kevacoin/contrib/gitian-descriptors/gitian-win.yml
mv build/out/kevacoin-*-win-unsigned.tar.gz inputs/kevacoin-win-unsigned.tar.gz
mv build/out/kevacoin-*.zip build/out/kevacoin-*.exe ../

./bin/gbuild --num-make 2 --memory 3000 --commit kevacoin=v${VERSION} ../kevacoin/contrib/gitian-descriptors/gitian-osx.yml
./bin/gsign --signer $SIGNER --release ${VERSION}-osx-unsigned --destination ../gitian.sigs.ltc/ ../kevacoin/contrib/gitian-descriptors/gitian-osx.yml
mv build/out/kevacoin-*-osx-unsigned.tar.gz inputs/kevacoin-osx-unsigned.tar.gz
mv build/out/kevacoin-*.tar.gz build/out/kevacoin-*.dmg ../
popd

Build output expected:

  1. source tarball (kevacoin-${VERSION}.tar.gz)
  2. linux 32-bit and 64-bit dist tarballs (kevacoin-${VERSION}-linux[32|64].tar.gz)
  3. windows 32-bit and 64-bit unsigned installers and dist zips (kevacoin-${VERSION}-win[32|64]-setup-unsigned.exe, kevacoin-${VERSION}-win[32|64].zip)
  4. OS X unsigned installer and dist tarball (kevacoin-${VERSION}-osx-unsigned.dmg, kevacoin-${VERSION}-osx64.tar.gz)
  5. Gitian signatures (in gitian.sigs.ltc/${VERSION}-<linux|{win,osx}-unsigned>/(your Gitian key)/)

Verify other gitian builders signatures to your own. (Optional)

Add other gitian builders keys to your gpg keyring, and/or refresh keys.

gpg --import kevacoin/contrib/gitian-keys/*.pgp
gpg --refresh-keys

Verify the signatures

pushd ./gitian-builder
./bin/gverify -v -d ../gitian.sigs.ltc/ -r ${VERSION}-linux ../kevacoin/contrib/gitian-descriptors/gitian-linux.yml
./bin/gverify -v -d ../gitian.sigs.ltc/ -r ${VERSION}-win-unsigned ../kevacoin/contrib/gitian-descriptors/gitian-win.yml
./bin/gverify -v -d ../gitian.sigs.ltc/ -r ${VERSION}-osx-unsigned ../kevacoin/contrib/gitian-descriptors/gitian-osx.yml
popd

Next steps:

Commit your signature to gitian.sigs.ltc:

pushd gitian.sigs.ltc
git add ${VERSION}-linux/${SIGNER}
git add ${VERSION}-win-unsigned/${SIGNER}
git add ${VERSION}-osx-unsigned/${SIGNER}
git commit -a
git push  # Assuming you can push to the gitian.sigs.ltc tree
popd

Codesigner only: Create Windows/OS X detached signatures:

  • Only one person handles codesigning. Everyone else should skip to the next step.
  • Only once the Windows/OS X builds each have 3 matching signatures may they be signed with their respective release keys.

Codesigner only: Sign the osx binary:

transfer kevacoin-osx-unsigned.tar.gz to osx for signing
tar xf kevacoin-osx-unsigned.tar.gz
./detached-sig-create.sh -s "Key ID"
Enter the keychain password and authorize the signature
Move signature-osx.tar.gz back to the gitian host

Codesigner only: Sign the windows binaries:

tar xf kevacoin-win-unsigned.tar.gz
./detached-sig-create.sh -key /path/to/codesign.key
Enter the passphrase for the key when prompted
signature-win.tar.gz will be created

Codesigner only: Commit the detached codesign payloads:

cd ~/kevacoin-detached-sigs
checkout the appropriate branch for this release series
rm -rf *
tar xf signature-osx.tar.gz
tar xf signature-win.tar.gz
git add -a
git commit -m "point to ${VERSION}"
git tag -s v${VERSION} HEAD
git push the current branch and new tag

Non-codesigners: wait for Windows/OS X detached signatures:

  • Once the Windows/OS X builds each have 3 matching signatures, they will be signed with their respective release keys.
  • Detached signatures will then be committed to the kevacoin-detached-sigs repository, which can be combined with the unsigned apps to create signed binaries.

Create (and optionally verify) the signed OS X binary:

pushd ./gitian-builder
./bin/gbuild -i --commit signature=v${VERSION} ../kevacoin/contrib/gitian-descriptors/gitian-osx-signer.yml
./bin/gsign --signer $SIGNER --release ${VERSION}-osx-signed --destination ../gitian.sigs.ltc/ ../kevacoin/contrib/gitian-descriptors/gitian-osx-signer.yml
./bin/gverify -v -d ../gitian.sigs.ltc/ -r ${VERSION}-osx-signed ../kevacoin/contrib/gitian-descriptors/gitian-osx-signer.yml
mv build/out/kevacoin-osx-signed.dmg ../kevacoin-${VERSION}-osx.dmg
popd

Create (and optionally verify) the signed Windows binaries:

pushd ./gitian-builder
./bin/gbuild -i --commit signature=v${VERSION} ../kevacoin/contrib/gitian-descriptors/gitian-win-signer.yml
./bin/gsign --signer $SIGNER --release ${VERSION}-win-signed --destination ../gitian.sigs.ltc/ ../kevacoin/contrib/gitian-descriptors/gitian-win-signer.yml
./bin/gverify -v -d ../gitian.sigs.ltc/ -r ${VERSION}-win-signed ../kevacoin/contrib/gitian-descriptors/gitian-win-signer.yml
mv build/out/kevacoin-*win64-setup.exe ../kevacoin-${VERSION}-win64-setup.exe
mv build/out/kevacoin-*win32-setup.exe ../kevacoin-${VERSION}-win32-setup.exe
popd

Commit your signature for the signed OS X/Windows binaries:

pushd gitian.sigs.ltc
git add ${VERSION}-osx-signed/${SIGNER}
git add ${VERSION}-win-signed/${SIGNER}
git commit -a
git push  # Assuming you can push to the gitian.sigs.ltc tree
popd

After 3 or more people have gitian-built and their results match:

  • Create SHA256SUMS.asc for the builds, and GPG-sign it:
sha256sum * > SHA256SUMS

The list of files should be:

kevacoin-${VERSION}-aarch64-linux-gnu.tar.gz
kevacoin-${VERSION}-arm-linux-gnueabihf.tar.gz
kevacoin-${VERSION}-i686-pc-linux-gnu.tar.gz
kevacoin-${VERSION}-x86_64-linux-gnu.tar.gz
kevacoin-${VERSION}-osx64.tar.gz
kevacoin-${VERSION}-osx.dmg
kevacoin-${VERSION}.tar.gz
kevacoin-${VERSION}-win32-setup.exe
kevacoin-${VERSION}-win32.zip
kevacoin-${VERSION}-win64-setup.exe
kevacoin-${VERSION}-win64.zip

The *-debug* files generated by the gitian build contain debug symbols for troubleshooting by developers. It is assumed that anyone that is interested in debugging can run gitian to generate the files for themselves. To avoid end-user confusion about which file to pick, as well as save storage space do not upload these to the kevacoin.org server, nor put them in the torrent.

  • GPG-sign it, delete the unsigned file:
gpg --digest-algo sha256 --clearsign SHA256SUMS # outputs SHA256SUMS.asc
rm SHA256SUMS

(the digest algorithm is forced to sha256 to avoid confusion of the Hash: header that GPG adds with the SHA256 used for the files) Note: check that SHA256SUMS itself doesn't end up in SHA256SUMS, which is a spurious/nonsensical entry.

  • Upload zips and installers, as well as SHA256SUMS.asc from last step, to the kevacoin.org server.

- Update kevacoin.org version

- Announce the release:

  - kevacoin-dev and kevacoin-dev mailing list

  - blog.kevacoin.org blog post

  - Update title of #kevacoin and #kevacoin-dev on Freenode IRC

  - Optionally twitter, reddit /r/Kevacoin, ... but this will usually sort out itself

  - Archive release notes for the new version to `doc/release-notes/` (branch `master` and branch of the release)

  - Create a [new GitHub release](https://github.com/kevacoin-project/kevacoin/releases/new) with a link to the archived release notes.

  - Celebrate