3d87d5ea81
Newer versions of emscipten, starting all the way back in 1.39.13, can automatically locate the `.emscripten` config file that emsdk creates so there is no need for the explicit EM_CONFIG environment variable. Its redundant and adds unnessary noisce/complexity. Really, adding emcc to the PATH is all the is needed these days. One nice thing about this change is that it allows folks to run whichever emcc they want to and have it just work, even if they have configured emsdk. Without this change, if I activate emsdk and I run `some/other/emcc` then emsdk's `EM_CONFIG` will still be present and override the configuration embedded in `some/other/emcc`. e.g. in the same shell, with emsdk activated, I can run both these commands and have them both just work as expected. ``` $ emcc --version $ /path/to/my/emcc --version ```
134 lines
5.0 KiB
Docker
134 lines
5.0 KiB
Docker
FROM ubuntu:focal AS stage_build
|
|
|
|
ARG EMSCRIPTEN_VERSION=tot
|
|
ENV EMSDK /emsdk
|
|
|
|
# ------------------------------------------------------------------------------
|
|
|
|
RUN echo "## Start building" \
|
|
&& echo "## Update and install packages" \
|
|
&& apt-get -qq -y update \
|
|
&& apt-get -qq install -y --no-install-recommends \
|
|
binutils \
|
|
build-essential \
|
|
ca-certificates \
|
|
file \
|
|
git \
|
|
python3 \
|
|
python3-pip \
|
|
&& echo "## Done"
|
|
|
|
# Copy the contents of this repository to the container
|
|
COPY . ${EMSDK}
|
|
|
|
RUN echo "## Install Emscripten" \
|
|
&& cd ${EMSDK} \
|
|
&& ./emsdk install ${EMSCRIPTEN_VERSION} \
|
|
&& echo "## Done"
|
|
|
|
# This generates configuration that contains all valid paths according to installed SDK
|
|
# TODO(sbc): We should be able to use just emcc -v here but it doesn't
|
|
# currently create the sanity file.
|
|
RUN cd ${EMSDK} \
|
|
&& echo "## Generate standard configuration" \
|
|
&& ./emsdk activate ${EMSCRIPTEN_VERSION} \
|
|
&& chmod 777 ${EMSDK}/upstream/emscripten \
|
|
&& chmod -R 777 ${EMSDK}/upstream/emscripten/cache \
|
|
&& echo "int main() { return 0; }" > hello.c \
|
|
&& ${EMSDK}/upstream/emscripten/emcc -c hello.c \
|
|
&& cat ${EMSDK}/upstream/emscripten/cache/sanity.txt \
|
|
&& echo "## Done"
|
|
|
|
# Cleanup Emscripten installation and strip some symbols
|
|
RUN echo "## Aggressive optimization: Remove debug symbols" \
|
|
&& cd ${EMSDK} && . ./emsdk_env.sh \
|
|
# Remove debugging symbols from embedded node (extra 7MB)
|
|
&& strip -s `which node` \
|
|
# Tests consume ~80MB disc space
|
|
&& rm -fr ${EMSDK}/upstream/emscripten/tests \
|
|
# Fastcomp is not supported
|
|
&& rm -fr ${EMSDK}/upstream/fastcomp \
|
|
# strip out symbols from clang (~extra 50MB disc space)
|
|
&& find ${EMSDK}/upstream/bin -type f -exec strip -s {} + || true \
|
|
&& echo "## Done"
|
|
|
|
# ------------------------------------------------------------------------------
|
|
# -------------------------------- STAGE DEPLOY --------------------------------
|
|
# ------------------------------------------------------------------------------
|
|
|
|
FROM ubuntu:focal AS stage_deploy
|
|
|
|
COPY --from=stage_build /emsdk /emsdk
|
|
|
|
# Fallback in case Emscripten isn't activated.
|
|
# This will let use tools offered by this image inside other Docker images
|
|
# (sub-stages) or with custom / no entrypoint
|
|
ENV EMSDK=/emsdk \
|
|
EMSDK_NODE=/emsdk/node/14.18.2_64bit/bin/node \
|
|
PATH="/emsdk:/emsdk/upstream/emscripten:/emsdk/upstream/bin:/emsdk/node/14.18.2_64bit/bin:${PATH}"
|
|
|
|
# ------------------------------------------------------------------------------
|
|
# Create a 'standard` 1000:1000 user
|
|
# Thanks to that this image can be executed as non-root user and created files
|
|
# will not require root access level on host machine Please note that this
|
|
# solution even if widely spread (i.e. Node.js uses it) is far from perfect as
|
|
# user 1000:1000 might not exist on host machine, and in this case running any
|
|
# docker image will cause other random problems (mostly due `$HOME` pointing to
|
|
# `/`)
|
|
RUN echo "## Create emscripten user (1000:1000)" \
|
|
&& groupadd --gid 1000 emscripten \
|
|
&& useradd --uid 1000 --gid emscripten --shell /bin/bash --create-home emscripten \
|
|
&& echo "umask 0000" >> /etc/bash.bashrc \
|
|
&& echo ". /emsdk/emsdk_env.sh" >> /etc/bash.bashrc \
|
|
&& echo "## Done"
|
|
|
|
# ------------------------------------------------------------------------------
|
|
|
|
RUN echo "## Update and install packages" \
|
|
&& apt-get -qq -y update \
|
|
# Somewhere in here apt sets up tzdata which asks for your time zone and blocks
|
|
# waiting for the answer which you can't give as docker build doesn't read from
|
|
# the terninal. The env vars set here avoid the interactive prompt and set the TZ.
|
|
&& DEBIAN_FRONTEND="noninteractive" TZ="America/San_Francisco" apt-get -qq install -y --no-install-recommends \
|
|
sudo \
|
|
libxml2 \
|
|
ca-certificates \
|
|
python3 \
|
|
python3-pip \
|
|
wget \
|
|
curl \
|
|
zip \
|
|
unzip \
|
|
git \
|
|
git-lfs \
|
|
ssh-client \
|
|
build-essential \
|
|
make \
|
|
ant \
|
|
libidn11 \
|
|
cmake \
|
|
openjdk-11-jre-headless \
|
|
# Standard Cleanup on Debian images
|
|
&& apt-get -y clean \
|
|
&& apt-get -y autoclean \
|
|
&& apt-get -y autoremove \
|
|
&& rm -rf /var/lib/apt/lists/* \
|
|
&& rm -rf /var/cache/debconf/*-old \
|
|
&& rm -rf /usr/share/doc/* \
|
|
&& rm -rf /usr/share/man/?? \
|
|
&& rm -rf /usr/share/man/??_* \
|
|
&& echo "## Done"
|
|
|
|
# ------------------------------------------------------------------------------
|
|
# Use commonly used /src as working directory
|
|
WORKDIR /src
|
|
|
|
LABEL maintainer="kontakt@trzeci.eu" \
|
|
org.label-schema.name="emscripten" \
|
|
org.label-schema.description="The official container with Emscripten SDK" \
|
|
org.label-schema.url="https://emscripten.org" \
|
|
org.label-schema.vcs-url="https://github.com/emscripten-core/emsdk" \
|
|
org.label-schema.docker.dockerfile="/docker/Dockerfile"
|
|
|
|
# ------------------------------------------------------------------------------
|