syncthing/build.sh
Jakob Borg 7c8418f493 build: Support builds outside of GOPATH
This adds support for building with the source placed anywhere and no
GOPATH set. The build script handles this by creating a temporary GOPATH
in the system temp dir (or another specified location) and mirroring the
source there before building. The resulting binaries etc still end up in
the same place as usual, meaning at least the "build", "install", "tar",
"zip", "deb", "snap", "test", "vet", "lint", "metalint" and "clean"
commands work without a GOPATH. To this end these commands internally
use fully qualified package paths like
"github.com/syncthing/syncthing/cmd/..." instead of "./cmd/..." like
before.

There is a new command "gopath" that prepares and echoes the directory
of the temporary GOPATH. This can be used to run other non-build go
commands:

export GOPATH=$(go run build.go gopath)  // GOPATH is now set
go test -v -race github.com/syncthing/syncthing/cmd/...

There is a new option "-no-build-gopath" that prevents the
check-and-copy step, instead assuming the temporary GOPATH is already
created and up to date. This is a performance optimization for build
servers running multiple builds commands in sequence:

go run build.go gopath // creates a temporary GOPATH
go run build.go -no-build-gopath -goos=... tar // reuses GOPATH
go run build.go -no-build-gopath -goos=... tar // reuses GOPATH

The temporary GOPATH is placed in the system temporary directory
(os.TempDir()) unless overridden by the STTMPDIR variable. It is named
after the hash of the current directory where build.go is run. The
reason for this is that the name should be unique to a source checkout
without risk for conflict, but still persistent between runs of
build.go.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4253
LGTM: AudriusButkevicius, imsodin
2017-07-11 07:57:58 +00:00

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#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'
STTRACE=${STTRACE:-}
script() {
name="$1"
shift
go run "script/$name.go" "$@"
}
build() {
go run build.go "$@"
}
case "${1:-default}" in
default)
build
build lint
;;
clean)
build "$@"
;;
tar)
build "$@"
;;
assets)
build "$@"
;;
xdr)
build "$@"
;;
translate)
build "$@"
;;
deb)
build "$@"
;;
setup)
build "$@"
;;
test)
ulimit -t 600 &>/dev/null || true
ulimit -d 512000 &>/dev/null || true
ulimit -m 512000 &>/dev/null || true
LOGGER_DISCARD=1 build test
;;
bench)
LOGGER_DISCARD=1 build bench | script benchfilter
;;
prerelease)
go run script/authors.go
build transifex
pushd man ; ./refresh.sh ; popd
git add -A gui man
git commit -m 'gui, man: Update docs & translations'
;;
noupgrade)
build -no-upgrade tar
;;
all)
platforms=(
darwin-amd64 dragonfly-amd64 freebsd-amd64 linux-amd64 netbsd-amd64 openbsd-amd64 solaris-amd64 windows-amd64
freebsd-386 linux-386 netbsd-386 openbsd-386 windows-386
linux-arm linux-arm64 linux-ppc64 linux-ppc64le
)
for plat in "${platforms[@]}"; do
echo Building "$plat"
goos="${plat%-*}"
goarch="${plat#*-}"
dist="tar"
if [[ $goos == "windows" ]]; then
dist="zip"
fi
build -goos "$goos" -goarch "$goarch" "$dist"
echo
done
;;
test-xunit)
ulimit -t 600 &>/dev/null || true
ulimit -d 512000 &>/dev/null || true
ulimit -m 512000 &>/dev/null || true
(GOPATH="$(pwd)/Godeps/_workspace:$GOPATH" go test -v -race ./lib/... ./cmd/... || true) > tests.out
go2xunit -output tests.xml -fail < tests.out
;;
*)
echo "Unknown build command $1"
;;
esac