ARG PLATFORM=amd64

FROM ${PLATFORM}/alpine:3.10 AS build

WORKDIR /build

RUN apk add --no-cache wget cmake make gcc g++ linux-headers zlib-dev openssl-dev \

automake autoconf libevent-dev ncurses-dev msgpack-c-dev libexecinfo-dev \

ncurses-static libexecinfo-static libevent-static msgpack-c ncurses-libs \

libevent libexecinfo openssl zlib

RUN set -ex; \

mkdir -p /src/libssh/build; \

cd /src; \

wget -O libssh.tar.xz https://www.libssh.org/files/0.9/libssh-0.9.0.tar.xz; \

tar -xf libssh.tar.xz -C /src/libssh --strip-components=1; \

cd /src/libssh/build; \

cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr \

-DWITH_SFTP=OFF -DWITH_SERVER=OFF -DWITH_PCAP=OFF \

-DWITH_STATIC_LIB=ON -DWITH_GSSAPI=OFF ..; \

make -j $(nproc); \

make install

COPY compat ./compat

COPY *.c *.h autogen.sh Makefile.am configure.ac ./

RUN ./autogen.sh && ./configure --enable-static

RUN make -j $(nproc)

RUN objcopy --only-keep-debug tmate tmate.symbols && chmod -x tmate.symbols && strip tmate

RUN ./tmate -V

FROM alpine:3.9

RUN apk --no-cache add bash

RUN mkdir /build

ENV PATH=/build:$PATH

COPY --from=build /build/tmate.symbols /build

COPY --from=build /build/tmate /build