DockerCLI/scripts/build/.variables

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#!/usr/bin/env sh
set -eu
: "${CGO_ENABLED=}"
: "${GO_LINKMODE=static}"
: "${GO_BUILDMODE=}"
: "${GO_BUILDTAGS=}"
: "${GO_STRIP=}"
TARGET=${TARGET:-"build"}
PLATFORM=${PLATFORM:-}
VERSION=${VERSION:-$(git describe --match 'v[0-9]*' --dirty='.m' --always --tags | sed 's/^v//' 2>/dev/null || echo "unknown-version" )}
GITCOMMIT=${GITCOMMIT:-$(git rev-parse --short HEAD 2> /dev/null || true)}
BUILDTIME=${BUILDTIME:-$(date -u --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +"%Y-%m-%dT%H:%M:%SZ")}
GOOS="$(go env GOOS)"
GOARCH="$(go env GOARCH)"
if [ "${GOARCH}" = "arm" ]; then
GOARM="$(go env GOARM)"
fi
TARGET="$TARGET/docker-${GOOS}-${GOARCH}"
if [ "${GOARCH}" = "arm" ] && [ -n "${GOARM}" ]; then
TARGET="${TARGET}-v${GOARM}"
fi
if [ "${GOOS}" = "windows" ]; then
TARGET="${TARGET}.exe"
fi
export TARGET
if [ -z "$CGO_ENABLED" ]; then
case "$(go env GOOS)" in
linux)
case "$(go env GOARCH)" in
amd64|arm64|arm|s390x)
CGO_ENABLED=1
;;
*)
CGO_ENABLED=0
;;
esac
;;
darwin|windows)
CGO_ENABLED=1
;;
*)
CGO_ENABLED=0
;;
esac
fi
export CGO_ENABLED
if [ "$CGO_ENABLED" = "1" ] && [ "$(go env GOOS)" != "windows" ]; then
case "$(go env GOARCH)" in
mips*|ppc64)
# pie build mode is not supported on mips architectures
;;
*)
GO_BUILDMODE="-buildmode=pie"
;;
esac
fi
export GO_BUILDMODE
GO_LDFLAGS="${GO_LDFLAGS:-} -w"
GO_LDFLAGS="$GO_LDFLAGS -X \"github.com/docker/cli/cli/version.GitCommit=${GITCOMMIT}\""
GO_LDFLAGS="$GO_LDFLAGS -X \"github.com/docker/cli/cli/version.BuildTime=${BUILDTIME}\""
GO_LDFLAGS="$GO_LDFLAGS -X \"github.com/docker/cli/cli/version.Version=${VERSION}\""
if test -n "${PLATFORM}"; then
GO_LDFLAGS="$GO_LDFLAGS -X \"github.com/docker/cli/cli/version.PlatformName=${PLATFORM}\""
fi
if [ "$CGO_ENABLED" = "1" ] && [ "$GO_LINKMODE" = "static" ] && [ "$(go env GOOS)" = "linux" ]; then
GO_LDFLAGS="$GO_LDFLAGS -extldflags -static"
fi
if [ "$CGO_ENABLED" = "1" ] && [ "$GO_LINKMODE" = "static" ]; then
# compiling statically with CGO enabled requires osusergo to be set.
GO_BUILDTAGS="$GO_BUILDTAGS osusergo"
fi
if [ -n "$GO_STRIP" ]; then
GO_LDFLAGS="$GO_LDFLAGS -s"
fi
export GO_LDFLAGS="$GO_LDFLAGS" # https://github.com/koalaman/shellcheck/issues/2064
export SOURCE="github.com/docker/cli/cmd/docker"