bisq/docs/build.md

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# Building Bisq
Track p2p data store files using Git LFS The large binary objects in p2p/src/main/resources/ are updated on every Bisq release with the latest network data to avoid the need for new Bisq clients to download all of this information from the network, which would easily overload seed nodes and generally bog down the client. This approach works well enough for its purposes, but comes with the significant downside of storing all of this binary data in Git history forever. The current version of these binary objects total about 65M, and they grow with every release. In aggregate, this has caused the total size of the repository to grow to 360M, making it cumbersome to clone over a low-bandwith connection, and slowing down various local Git operations. To avoid further exacerbating this problem, this commit sets these files up to be tracked via Git LFS. There's nothing we can do about the 360M of files that already exist in history, but we can ensure it doesn't grow in this unchecked way going forward. For an understanding of how Git LFS works, see the reference material at [1], and see also the sample project and README at [2]. The following command was used to track the files: $ git lfs track "p2p/src/main/resources/*BTC_MAINNET" Tracking "p2p/src/main/resources/AccountAgeWitnessStore_BTC_MAINNET" Tracking "p2p/src/main/resources/BlindVoteStore_BTC_MAINNET" Tracking "p2p/src/main/resources/DaoStateStore_BTC_MAINNET" Tracking "p2p/src/main/resources/ProposalStore_BTC_MAINNET" Tracking "p2p/src/main/resources/SignedWitnessStore_BTC_MAINNET" Tracking "p2p/src/main/resources/TradeStatistics2Store_BTC_MAINNET" We are using GitHub's built-in LFS service here, and it's important to understand that there are storage and bandwidth limits there. We have 1G total storage and 1G per month of bandwidth on the free tier. We will certainly exceed this, and so must purchase at least one "data pack" from GitHub, possibly two. One gets us to 50G storage and bandwith. In an attempt to avoid unnecessary LFS bandwidth usage, this commit also updates the Travis CI build configuration to cache Git LFS files, such that they are not re-downloaded on every CI build (see [3] and [4] below). With that out of the way, the variable determining whether we exceed the monthly limit is how many clones we have every month, and there are many, though it's not clear how many are are Travis CI and how many are users / developers. Tracking these files via LFS means that developers will need to have Git LFS installed in order to properly synchronize the files. If a developer does not have LFS installed, cloning will complete successfully and the build would complete successfully, but the app would fail when trying to actually load the p2p data store files. For this reason, the build has been updated to proactively check that the p2p data store files have been properly synchronized via LFS, and if not, the build fails with a helpful error message. The docs/build.md instructions have also been updated accordingly. It is important that we make this change now, not only to avoid growing the repository in the way described above as we have been doing now for many releases, but also because we are now considering adding yet more binary objects to the repository, as proposed at https://github.com/bisq-network/projects/issues/25. [1]: https://git-lfs.github.com [2]: https://github.com/cbeams/lfs-test [3]: https://docs-staging.travis-ci.com/user/customizing-the-build/#git-lfs [4]: https://github.com/travis-ci/travis-ci/issues/8787#issuecomment-394202791
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## Install Git LFS
Bisq uses Git LFS to track certain large binary files. Follow the instructions at https://git-lfs.github.com to install it, then run the following to command to verify the installation:
$ git lfs version
git-lfs/2.10.0 (GitHub; darwin amd64; go 1.13.6)
## Clone
git clone https://github.com/bisq-network/bisq
cd bisq
## Build
You do _not_ need to install Gradle to complete the following command. The `gradlew` shell script will install it for you if necessary.
./gradlew build
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If on Windows run `gradlew.bat build` instead.
## Run
Generate scripts for Bisq executables in root dir This change configures the Gradle build to generate "start scripts" for each Bisq executable (e.g. Bisq Desktop, Bisq Seednode, etc) in the root project directory, such that after invoking `./gradle build`, the following executable scripts become available: ~/Work/bisq-network/bisq $ ls -1 | egrep '(bisq*|lib)' bisq-desktop bisq-desktop.bat bisq-monitor bisq-monitor.bat bisq-relay bisq-relay.bat bisq-seednode bisq-seednode.bat bisq-statsnode bisq-statsnode.bat lib This makes it possible for users (developers) to easily discover and use these scripts in an idiomatic and platform-agnostic way as opposed to the previous situation where we would advise users to run e.g. java -jar desktop/build/libs/desktop-0.8.0-SNAPSHOT-all.jar This approach works, but is cumbersome and focuses unnecessarily on the Java-based nature of the project. Now, with the changes in this commit, the user would simply run: ./bisq-desktop The 'lib' directory shown above contains all the jar files necessary to construct classpaths for these various scripts. The 'cleanInstallDist' task deletes the 'bisq-*' files and the 'lib' directory, and the default 'clean' task has been configured to depend on the 'cleanInstallDist' task to ensure this cleanup happens automatically when most users would expect it. In the future, these same scripts can be used when installing Bisq executables properly on users' systems via package managers like Brew and Apt. The goal is to have the user experience around running `bisq-desktop` (and more importantly, the forthcoming `bisqd`) be similar in every way to installing and using `bitcoind`, `lnd` and other idiomatic *nix-style utilities, be they Bitcoin-related or not. See the changes in docs/build.md and docs/dev-setup.md for a further sense of the how this change impacts the developer experience.
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Bisq executables are now available in the root project directory. Run Bisq Desktop as follows:
Track p2p data store files using Git LFS The large binary objects in p2p/src/main/resources/ are updated on every Bisq release with the latest network data to avoid the need for new Bisq clients to download all of this information from the network, which would easily overload seed nodes and generally bog down the client. This approach works well enough for its purposes, but comes with the significant downside of storing all of this binary data in Git history forever. The current version of these binary objects total about 65M, and they grow with every release. In aggregate, this has caused the total size of the repository to grow to 360M, making it cumbersome to clone over a low-bandwith connection, and slowing down various local Git operations. To avoid further exacerbating this problem, this commit sets these files up to be tracked via Git LFS. There's nothing we can do about the 360M of files that already exist in history, but we can ensure it doesn't grow in this unchecked way going forward. For an understanding of how Git LFS works, see the reference material at [1], and see also the sample project and README at [2]. The following command was used to track the files: $ git lfs track "p2p/src/main/resources/*BTC_MAINNET" Tracking "p2p/src/main/resources/AccountAgeWitnessStore_BTC_MAINNET" Tracking "p2p/src/main/resources/BlindVoteStore_BTC_MAINNET" Tracking "p2p/src/main/resources/DaoStateStore_BTC_MAINNET" Tracking "p2p/src/main/resources/ProposalStore_BTC_MAINNET" Tracking "p2p/src/main/resources/SignedWitnessStore_BTC_MAINNET" Tracking "p2p/src/main/resources/TradeStatistics2Store_BTC_MAINNET" We are using GitHub's built-in LFS service here, and it's important to understand that there are storage and bandwidth limits there. We have 1G total storage and 1G per month of bandwidth on the free tier. We will certainly exceed this, and so must purchase at least one "data pack" from GitHub, possibly two. One gets us to 50G storage and bandwith. In an attempt to avoid unnecessary LFS bandwidth usage, this commit also updates the Travis CI build configuration to cache Git LFS files, such that they are not re-downloaded on every CI build (see [3] and [4] below). With that out of the way, the variable determining whether we exceed the monthly limit is how many clones we have every month, and there are many, though it's not clear how many are are Travis CI and how many are users / developers. Tracking these files via LFS means that developers will need to have Git LFS installed in order to properly synchronize the files. If a developer does not have LFS installed, cloning will complete successfully and the build would complete successfully, but the app would fail when trying to actually load the p2p data store files. For this reason, the build has been updated to proactively check that the p2p data store files have been properly synchronized via LFS, and if not, the build fails with a helpful error message. The docs/build.md instructions have also been updated accordingly. It is important that we make this change now, not only to avoid growing the repository in the way described above as we have been doing now for many releases, but also because we are now considering adding yet more binary objects to the repository, as proposed at https://github.com/bisq-network/projects/issues/25. [1]: https://git-lfs.github.com [2]: https://github.com/cbeams/lfs-test [3]: https://docs-staging.travis-ci.com/user/customizing-the-build/#git-lfs [4]: https://github.com/travis-ci/travis-ci/issues/8787#issuecomment-394202791
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Note: bisq runs fine on jdk10 and jdk11. jdk12 is currently not supported.
Generate scripts for Bisq executables in root dir This change configures the Gradle build to generate "start scripts" for each Bisq executable (e.g. Bisq Desktop, Bisq Seednode, etc) in the root project directory, such that after invoking `./gradle build`, the following executable scripts become available: ~/Work/bisq-network/bisq $ ls -1 | egrep '(bisq*|lib)' bisq-desktop bisq-desktop.bat bisq-monitor bisq-monitor.bat bisq-relay bisq-relay.bat bisq-seednode bisq-seednode.bat bisq-statsnode bisq-statsnode.bat lib This makes it possible for users (developers) to easily discover and use these scripts in an idiomatic and platform-agnostic way as opposed to the previous situation where we would advise users to run e.g. java -jar desktop/build/libs/desktop-0.8.0-SNAPSHOT-all.jar This approach works, but is cumbersome and focuses unnecessarily on the Java-based nature of the project. Now, with the changes in this commit, the user would simply run: ./bisq-desktop The 'lib' directory shown above contains all the jar files necessary to construct classpaths for these various scripts. The 'cleanInstallDist' task deletes the 'bisq-*' files and the 'lib' directory, and the default 'clean' task has been configured to depend on the 'cleanInstallDist' task to ensure this cleanup happens automatically when most users would expect it. In the future, these same scripts can be used when installing Bisq executables properly on users' systems via package managers like Brew and Apt. The goal is to have the user experience around running `bisq-desktop` (and more importantly, the forthcoming `bisqd`) be similar in every way to installing and using `bitcoind`, `lnd` and other idiomatic *nix-style utilities, be they Bitcoin-related or not. See the changes in docs/build.md and docs/dev-setup.md for a further sense of the how this change impacts the developer experience.
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./bisq-desktop
If on Windows use the `bisq-desktop.bat` script instead.
## See also
- [idea-import.md](idea-import.md)
- [dev-setup.md](dev-setup.md)