Description
Description
GitHub Actions supports collapsed sections using marker outputs ::group::<Section Title> and ::endgroup:: that, as far as I know, must begin at the start of a line.
However, docker buildx build (or just docker build) always prepends the step number and step elasped time on each line, such that running echo "::group::Start Verbose Install" doesn't produce the desired effect in the GHA Workflow UI.
I usually like to start Dockerfile RUN commands like in this example:
RUN <<'EOT'
set -e
echo "::group::Build Python 3.12"
( set -euxo pipefail
cd /tmp
dnf install -y openssl-devel bzip2-devel xz-devel libffi-devel \
libuuid-devel gdbm-devel readline-devel tk-devel sqlite-devel
VER="3.12"
FTP="https://www.python.org/ftp/python"
# determine the latest patch version
ver=$(curl -s $FTP/ | sed -En 's/^.+href="('${VER/./\\.}'\..+)\/".+$/\1/p' | sort -Vr | head -1)
curl -sL $FTP/$ver/Python-$ver.tgz | tar -xz
cd Python*
# https://docs.python.org/3/using/configure.html
./configure -q \
--prefix=/usr/local \
--enable-optimizations \
--with-lto=full \
--with-computed-gotos
make -sj$(nproc)
# installs into (empty) dirs under /usr/local: /bin, /lib, /share/man/man1
make -s altinstall
alternatives --install /usr/local/bin/python3 python3 /usr/local/bin/python$VER 1
alternatives --install /usr/local/bin/python python /usr/local/bin/python3 1
alternatives --list
hash -r
python3 -VV
python3 -m pip install -U --no-cache-dir --root-user-action=ignore pip
# must copy all new symlinks in /etc/alternatives into the final image
alternatives --install /usr/local/bin/pip3 pip3 /usr/local/bin/pip$VER 1
alternatives --install /usr/local/bin/pip pip /usr/local/bin/pip3 1
alternatives --list
hash -r
pip3 -V
)
echo "::endgroup::"
EOTThis particular example from a multi-stage build produces prodigious amounts of log output, and so I'd like to show each major step in its own collapsed section when reviewing the workflow run.
But, of course and unfortunately, the build log is generated like so:
#10 [builder 3/7] RUN <<'EOT' (echo "::group::Build Python 3.12"...)
#10 0.188 ::group::Build Python 3.12
#10 0.188 + cd /tmp
#10 0.188 + dnf install -y openssl-devel bzip2-devel xz-devel libffi-devel libuuid-devel gdbm-devel readline-devel tk-devel sqlite-devel
#10 0.405 Last metadata expiration check: 0:00:27 ago on Thu Aug 8 19:45:33 2024.
#10 0.424 Package xz-devel-5.2.5-9.amzn2023.0.2.x86_64 is already installed.
#10 0.464 Dependencies resolved.
#10 0.479 ================================================================================
#10 0.479 Package Arch Version Repository Size
#10 0.479 ================================================================================
#10 0.479 Installing:
#10 0.479 bzip2-devel x86_64 1.0.8-6.amzn2023.0.2 amazonlinux 214 k
#10 0.479 gdbm-devel x86_64 1:1.19-2.amzn2023.0.2 amazonlinux 58 k
#10 0.479 libffi-devel x86_64 3.4.4-1.amzn2023.0.1 amazonlinux 30 k
#10 0.479 libuuid-devel x86_64 2.37.4-1.amzn2023.0.4 amazonlinux 23 k
#10 0.479 openssl-devel x86_64 1:3.0.8-1.amzn2023.0.14 amazonlinux 3.0 M
#10 0.479 readline-devel x86_64 8.1-2.amzn2023.0.2 amazonlinux 195 k
#10 0.479 sqlite-devel x86_64 3.40.0-1.amzn2023.0.4 amazonlinux 143 k
#10 0.479 tk-devel x86_64 1:8.6.10-6.amzn2023.0.2 amazonlinux 484 k
#10 0.479 Installing dependencies:
It would be great if this action intentionally strips out the step number and elasped time from lines that otherwise start immediately with the ::group:: and ::endgroup:: markers (the same marker string is displayed in both the first and second lines in the above text, but only the second line should have the annotations removed).
In essence, I'd want the effect of having the docker buildx build command be executed and filtered with sed, like this:
/usr/bin/docker buildx build --iidfile /home/runner/work/_temp/docker-actions-toolkit-FIW1PL/build-iidfile-13c464f45f.txt --lots-of-other-args --progress plain . 2>&1 | \
sed -E 's/^(#[0-9]+ [0-9.]+ )(::(end)?group::.*)$/\2/' | \
tee build.log