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moby--moby/hack/make/.detect-daemon-osarch
Sebastiaan van Stijn 297b30df5f
Bash scripts; use double brackets, fix bare variables, add quotes
These scripts explicitly use Bash, so we should be able to use
`[[` instead of `[` (which seems to be recommended).

Also added curly brackets to some bare variables, and quoted some paths.

This makes my IDE a bit more silent :-)

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2018-12-24 00:05:14 +01:00

43 lines
1.3 KiB
Bash

#!/usr/bin/env bash
set -e
docker-version-osarch() {
if ! type docker &>/dev/null; then
# docker is not installed
return
fi
local target="$1" # "Client" or "Server"
local fmtStr="{{.${target}.Os}}/{{.${target}.Arch}}"
if docker version -f "$fmtStr" 2>/dev/null; then
# if "docker version -f" works, let's just use that!
return
fi
docker version | awk '
$1 ~ /^(Client|Server):$/ { section = 0 }
$1 == "'"$target"':" { section = 1; next }
section && $1 == "OS/Arch:" { print $2 }
# old versions of Docker
$1 == "OS/Arch" && $2 == "('"${target,,}"'):" { print $3 }
'
}
# Retrieve OS/ARCH of docker daemon, e.g. linux/amd64
export DOCKER_ENGINE_OSARCH="${DOCKER_ENGINE_OSARCH:=$(docker-version-osarch 'Server')}"
export DOCKER_ENGINE_GOOS="${DOCKER_ENGINE_OSARCH%/*}"
export DOCKER_ENGINE_GOARCH="${DOCKER_ENGINE_OSARCH##*/}"
DOCKER_ENGINE_GOARCH=${DOCKER_ENGINE_GOARCH:=amd64}
# and the client, just in case
export DOCKER_CLIENT_OSARCH="$(docker-version-osarch 'Client')"
export DOCKER_CLIENT_GOOS="${DOCKER_CLIENT_OSARCH%/*}"
export DOCKER_CLIENT_GOARCH="${DOCKER_CLIENT_OSARCH##*/}"
DOCKER_CLIENT_GOARCH=${DOCKER_CLIENT_GOARCH:=amd64}
DOCKERFILE='Dockerfile'
if [[ "${DOCKER_ENGINE_GOOS:-$DOCKER_CLIENT_GOOS}" = "windows" ]]; then
DOCKERFILE='Dockerfile.windows'
fi
export DOCKERFILE