Julia 0.7

This article is installing Julia 0.7 and providing it as a reusable environment. If you just want to use Julia 0.7 in your own articles, see the Reusing section below. Futher down you will see how it was built.

Reusing the Environment

Short Version: Follow mk/julia-0.7-template and click Remix.

Long Version: To learn to how reuse environments accross articles, follow these steps:

Create a new article
Insert a Julia Cell
Activate the runtime settings in the runtime panel on the far right
Bring up the environments dropdown
Select the Transclude environment… option
Search for this article mk/julia-0.7 by entering julia into the search field
Select this article and the Julia 0.7 environment in it

Building the Environment

We base this off our Minimal Bash image. Notice how the JULIA_VERSION environment variable is set on the runtime.

Julia 0.7↩

▼

Julia 0.7 (Bash)Minimal Bash↩

exporting environment

Type: Nextjournal

Environment:Minimal Bash↩

Resources:

Environment Variables:

PATH	/usr/local/julia/bin:/usr/local/nvidia/bin:/usr/local/cuda/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
JULIA_PATH	/usr/local/julia
JULIA_GPG	3673DF529D9049477F76B37566E3C7DC03D6E495
JULIA_VERSION	0.7.0

Download this environment as a Docker image from:

The exact version we're installing is 0.7.0.

echo ${JULIA_VERSION}

0.8s

Here, we download the archive using curl.

tarArch='x86_64'
dirArch='x64'
JULIA_VERSION_SHORT=${JULIA_VERSION/-rc/}
echo "https://julialang-s3.julialang.org/bin/linux/${dirArch}/${JULIA_VERSION_SHORT%[.-]*}/julia-${JULIA_VERSION}-linux-${tarArch}.tar.gz.asc"
curl -fL -o julia.tar.gz.asc "https://julialang-s3.julialang.org/bin/linux/${dirArch}/${JULIA_VERSION_SHORT%[.-]*}/julia-${JULIA_VERSION}-linux-${tarArch}.tar.gz.asc"
curl -fL -o julia.tar.gz "https://julialang-s3.julialang.org/bin/linux/${dirArch}/${JULIA_VERSION_SHORT%[.-]*}/julia-${JULIA_VERSION}-linux-${tarArch}.tar.gz"

9.7s

Next, the signature is checked using gpg. This ensures we've downloaded the correct image.

sha256="35211bb89b060bfffe81e590b8aeb8103f059815953337453f632db9d96c1bd6"
echo "${sha256} *julia.tar.gz" | sha256sum -c -; \

savedAptMark="$(apt-mark showmanual)"; \
if ! command -v gpg > /dev/null; then \
  apt-get update; \
  apt-get install -y --no-install-recommends gnupg dirmngr; \
  rm -rf /var/lib/apt/lists/*;
fi;
export GNUPGHOME="$(mktemp -d)";
gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$JULIA_GPG";
gpg --batch --verify julia.tar.gz.asc julia.tar.gz;
command -v gpgconf > /dev/null && gpgconf --kill all;
rm -rf "$GNUPGHOME" julia.tar.gz.asc;

apt-mark auto '.*' > /dev/null
[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark
apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false

1.8s

PATH=$JULIA_PATH/bin:$PATH
mkdir "$JULIA_PATH";
tar -xzf julia.tar.gz -C "$JULIA_PATH" --strip-components 1;
rm julia.tar.gz;

3.1s

Lastly, we check that we can run Julia.

julia -v

0.6s

julia -e 'using Pkg
  Pkg.update()
  Pkg.add("JSON")'

9.9s

julia -e 'using JSON'

2.6s

Testing it

Lastly, let's create a Julia code cell that uses our newly built Julia image.

Base.VERSION

0.6s

And it works 🎉