65 lines
2.8 KiB
Markdown
65 lines
2.8 KiB
Markdown
# Vendored Dependencies
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Dependencies are almost all vendored in at the standard Go `/vendor` path. This allows
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people to build go-ethereum using the standard toolchain without any particular package
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manager. It also plays nicely with `go get`, not requiring external code to be relied on.
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The one single dependent package missing from `vendor` is `golang.org/x/net/context`. As
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this is a package exposed via public library APIs, it must not be vendored as dependent
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code woulnd't be able to instantiate.
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To allow reproducible builds of go-ethereum nonetheless that don't need network access
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during build time to fetch `golang.org/x/net/context`, a version was copied into our repo
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at the very specific `/build/_vendor` path, which is added automatically by all CI build
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scripts and the makefile too.
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# Debian Packaging
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Tagged releases and develop branch commits are available as installable Debian packages
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for Ubuntu. Packages are built for the all Ubuntu versions which are supported by
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Canonical:
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- Trusty Tahr (14.04 LTS)
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- Wily Werewolf (15.10)
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- Xenial Xerus (16.04 LTS)
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- Yakkety Yak (16.10)
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Packages of develop branch commits have suffix -unstable and cannot be installed alongside
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the stable version. Switching between release streams requires user intervention.
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The packages are built and served by launchpad.net. We generate a Debian source package
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for each distribution and upload it. Their builder picks up the source package, builds it
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and installs the new version into the PPA repository. Launchpad requires a valid signature
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by a team member for source package uploads. The signing key is stored in an environment
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variable which Travis CI makes available to certain builds.
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We want to build go-ethereum with the most recent version of Go, irrespective of the Go
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version that is available in the main Ubuntu repository. In order to make this possible,
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our PPA depends on the ~gophers/ubuntu/archive PPA. Our source package build-depends on
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golang-1.7, which is co-installable alongside the regular golang package. PPA dependencies
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can be edited at https://launchpad.net/%7Eethereum/+archive/ubuntu/ethereum/+edit-dependencies
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## Building Packages Locally (for testing)
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You need to run Ubuntu to do test packaging.
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Add the gophers PPA and install Go 1.7 and Debian packaging tools:
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$ sudo apt-add-repository ppa:gophers/ubuntu/archive
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$ sudo apt-get update
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$ sudo apt-get install build-essential golang-1.7 devscripts debhelper
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Create the source packages:
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$ go run build/ci.go debsrc -workdir dist
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Then go into the source package directory for your running distribution and build the package:
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$ cd dist/ethereum-unstable-1.5.0+xenial
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$ dpkg-buildpackage
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Built packages are placed in the dist/ directory.
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$ cd ..
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$ dpkg-deb -c geth-unstable_1.5.0+xenial_amd64.deb
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