mirror of
https://github.com/syncthing/syncthing.git
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178 lines
6.1 KiB
ReStructuredText
178 lines
6.1 KiB
ReStructuredText
.. _building:
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Building Syncthing
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==================
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.. note::
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You probably only need to go through the build process if you are going
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to do development on Syncthing or if you need to do a special packaging
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of it. For all other purposes we recommend using the the official binary
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releases instead.
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.. note::
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If you're on Linux and want the quickest possible start, check out
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:ref:`building-with-docker`. Otherwise follow the guide below to set up the
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development environment on your computer.
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Branches and Tags
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-----------------
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You should base your work on the ``master`` branch when doing your
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development. This branch is usually what will be going into the next
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release and always what pull requests should be based on.
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If you're looking to build and package a release of Syncthing you should
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instead use the latest tag (``vX.Y.Z``) as the contents of ``master``
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may be unstable and unsuitable for general consumption.
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Prerequisites
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-------------
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- Go **1.3** or higher
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- Git
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If you're not a Go developer since before, the easiest way to get going
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is to download the latest version of Go as instructed in
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http://golang.org/doc/install and ``export GOPATH=~``.
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.. note:: You need to set ``GOPATH`` correctly and the source **must** be checked out into ``$GOPATH/src/github.com/syncthing/syncthing``. The instructions below accomplish this correctly.
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Building (Unix)
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---------------
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- Install the prerequisites.
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- Open a terminal.
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.. code-block:: bash
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# This should output "go version go1.3" or higher.
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$ go version
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# Go is particular about file locations; use this path unless you know very
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# well what you're doing.
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$ mkdir -p ~/src/github.com/syncthing
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$ cd ~/src/github.com/syncthing
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# Note that if you are building from a source code archive, you need to
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# rename the directory from syncthing-XX.YY.ZZ to syncthing
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$ git clone https://github.com/syncthing/syncthing
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# Now we have the source. Time to build!
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$ cd syncthing
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# You should be inside ~/src/github.com/syncthing/syncthing right now.
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$ go run build.go
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Unless something goes wrong, you will have a ``syncthing`` binary built
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and ready in ``~/src/github.com/syncthing/syncthing/bin``.
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Building (Windows)
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------------------
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- Install the prerequisites.
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- Open a ``cmd`` Window::
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# This should output "go version go1.3" or higher.
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> go version
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# Go is particular about file locations; use this path unless you know very
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# well what you're doing.
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> mkdir c:\src\github.com\syncthing
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> cd c:\src\github.com\syncthing
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# Note that if you are building from a source code archive, you need to
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# rename the directory from syncthing-XX.YY.ZZ to syncthing
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> git clone https://github.com/syncthing/syncthing
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# Now we have the source. Time to build!
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> cd syncthing
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> go run build.go
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Unless something goes wrong, you will have a ``syncthing.exe`` binary
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built and ready in ``c:\src\github.com\syncthing\syncthing\bin``.
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Subcommands and Options
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-----------------------
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The following ``build.go`` subcommands and options exist.
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- ``go run build.go install`` -- installs binaries in ``./bin``
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(default command, this is what happens when build.go is run without
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any commands or parameters).
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- ``go run build.go build`` -- forces a rebuild of the binary to the
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current directory; similar to ``install`` but slower.
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- ``go run build.go clean`` -- remove build artefacts, guaranteeing a
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complete rebuild. Use this when switching between normal builds and
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noupgrade builds.
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- ``go run build.go test`` -- run the tests.
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- ``go run build.go tar`` -- create a Syncthing tar.gz dist file in the
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current directory. Assumes a Unixy build.
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- ``go run build.go zip`` -- create a Syncthing zip dist file in the
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current directory. Assumes a Windows build.
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- ``go run build.go assets`` -- rebuild the compiled-in GUI assets.
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- ``go run build.go deps`` -- update the in-repo dependencies.
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- ``go run build.go xdr`` -- regenerate the XDR en/decoders. Only
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necessary when the protocol has changed.
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The options ``-no-upgrade``, ``-goos`` and ``-goarch`` can be given to
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influence ``install``, ``build``, ``tar`` and ``zip``. Examples:
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- ``go run build.go -goos linux -goarch 386 tar`` -- build a tar.gz
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distribution of Syncthing for linux-386.
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- ``go run build.go -goos windows -no-upgrade zip`` -- build a zip
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distribution of Syncthing for Windows (current architecture) with
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upgrading disabled.
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.. note:: Building for a different operating system or architecture than your native one requires Go having been set up for cross compilation. The easiest way to get this right is to use the official Docker image, described below.
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Building without Git
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--------------------
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Syncthing can be built perfectly fine from a source tarball of course.
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If the tarball is from our build server it contains a file called
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``RELEASE`` that informs the build system of the version being
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built. If you're building from a different source package, for example
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one automatically generated by Github, you must instead pass the
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``-version`` flag to ``build.go``.
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If you are building something that will be installed as a package
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(Debian, RPM, ...) you almost certainly want to use ``-no-upgrade`` as
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well to prevent the built in upgrade system from being activated.
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- ``go run build.go -version v0.10.26 -no-upgrade tar`` -- build a
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tar.gz distribution of syncthing for the current OS/arch, tagged as
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``v0.10.26``, with upgrades disabled.
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.. _building-with-docker:
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Building with Docker
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--------------------
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The Docker based build image exactly replicates the official build
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process and is a quick way to get up and running with the full cross
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compiled setup. Start by getting the build image. It is fairly large
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(about 2 GiB).
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::
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$ docker pull syncthing/build:latest
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Then check out and build Syncthing.
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::
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$ git clone https://github.com/syncthing/syncthing
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$ cd syncthing
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$ ./build.sh docker-all
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A full build is done for all supported architectures, and tests are run.
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The process should end with a bunch of release files (``.tar.gz`` and
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``.zip``) created.
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