Add Dockerfile and README

Dockerfile

@@ -0,0 +1,84 @@
+ARG GO_VERSION=1.13.5
+
+# OS-X SDK parameters
+# NOTE: when changing version here, make sure to also change OSX_CODENAME below to match
+ARG OSX_SDK=MacOSX10.10.sdk
+ARG OSX_SDK_SUM=631b4144c6bf75bf7a4d480d685a9b5bda10ee8d03dbf0db829391e2ef858789
+
+# OSX-cross parameters. Go 1.11 requires OSX >= 10.10
+ARG OSX_VERSION_MIN=10.10
+ARG OSX_CROSS_COMMIT=a9317c18a3a457ca0a657f08cc4d0d43c6cf8953
+
+# Libtool parameters
+ARG LIBTOOL_VERSION=2.4.6
+ARG OSX_CODENAME=yosemite
+
+FROM golang:${GO_VERSION}-buster AS base
+ARG APT_MIRROR
+RUN sed -ri "s/(httpredir|deb).debian.org/${APT_MIRROR:-deb.debian.org}/g" /etc/apt/sources.list \
+ && sed -ri "s/(security).debian.org/${APT_MIRROR:-security.debian.org}/g" /etc/apt/sources.list
+ENV OSX_CROSS_PATH=/osxcross
+
+FROM base AS osx-sdk
+ARG OSX_SDK
+ARG OSX_SDK_SUM
+ADD https://s3.dockerproject.org/darwin/v2/${OSX_SDK}.tar.xz "${OSX_CROSS_PATH}/tarballs/${OSX_SDK}.tar.xz"
+RUN echo "${OSX_SDK_SUM}"  "${OSX_CROSS_PATH}/tarballs/${OSX_SDK}.tar.xz" | sha256sum -c -
+
+FROM base AS osx-cross-base
+ARG DEBIAN_FRONTEND=noninteractive
+# Dependencies for https://github.com/tpoechtrager/osxcross:
+# TODO split these into "build-time" and "runtime" dependencies so that build-time deps do not end up in the final image
+RUN apt-get update -qq && apt-get install -y -q --no-install-recommends \
+    clang \
+    file \
+    llvm \
+    patch \
+    xz-utils \
+ && rm -rf /var/lib/apt/lists/*
+
+FROM osx-cross-base AS osx-cross
+ARG OSX_CROSS_COMMIT
+WORKDIR "${OSX_CROSS_PATH}"
+RUN git clone https://github.com/tpoechtrager/osxcross.git . \
+ && git checkout -q "${OSX_CROSS_COMMIT}" \
+ && rm -rf ./.git
+COPY --from=osx-sdk "${OSX_CROSS_PATH}/." "${OSX_CROSS_PATH}/"
+ARG OSX_VERSION_MIN
+RUN UNATTENDED=yes OSX_VERSION_MIN=${OSX_VERSION_MIN} ./build.sh
+
+FROM base AS libtool
+ARG LIBTOOL_VERSION
+ARG OSX_CODENAME
+ARG OSX_SDK
+RUN mkdir -p "${OSX_CROSS_PATH}/target/SDK/${OSX_SDK}/usr/"
+RUN curl -fsSL "https://homebrew.bintray.com/bottles/libtool-${LIBTOOL_VERSION}.${OSX_CODENAME}.bottle.tar.gz" \
+	| gzip -dc | tar xf - \
+		-C "${OSX_CROSS_PATH}/target/SDK/${OSX_SDK}/usr/" \
+		--strip-components=2 \
+		"libtool/${LIBTOOL_VERSION}/include/" \
+		"libtool/${LIBTOOL_VERSION}/lib/"
+
+FROM osx-cross-base AS final
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -qq && apt-get install -y -q --no-install-recommends \
+    libltdl-dev \
+    gcc-mingw-w64 \
+    musl-tools \
+    parallel \
+ && rm -rf /var/lib/apt/lists/*
+
+ARG GORELEASER_VERSION=0.124.1
+ARG GORELEASER_DOWNLOAD_FILE=goreleaser_Linux_x86_64.tar.gz
+ARG GORELEASER_DOWNLOAD_URL=https://github.com/goreleaser/goreleaser/releases/download/v${GORELEASER_VERSION}/${GORELEASER_DOWNLOAD_FILE}
+
+RUN wget ${GORELEASER_DOWNLOAD_URL}; \
+			tar -xzf $GORELEASER_DOWNLOAD_FILE -C /usr/bin/ goreleaser; \
+			rm $GORELEASER_DOWNLOAD_FILE;
+
+COPY --from=osx-cross "${OSX_CROSS_PATH}/." "${OSX_CROSS_PATH}/"
+COPY --from=libtool   "${OSX_CROSS_PATH}/." "${OSX_CROSS_PATH}/"
+ENV PATH=${OSX_CROSS_PATH}/target/bin:$PATH
+
+ENTRYPOINT ["goreleaser"]
+CMD ["-v"]

README.md

@@ -1 +1,12 @@
-# xgoreleaser
+# oryd/xgoreleaser
+
+This image is published as [oryd/xgoreleaser](). It's tag (e.g. 1.13.5) reflects the Golang version used.
+This is a fork of [docker/golang-cross](https://github.com/docker/golang-cross).
+
+To build this image, run locally:
+
+```shell script
+$ docker build -t oryd/xgoreleaser:1.13.5 .
+```
+
+To build this image using the CI, create a new release with the desired Golang version