Package a Release

Linux lab Advanced 6 tasks 30 points

You're the release manager. Take the raw build folder, clean it up, and produce two deliverables: a compressed tarball for Linux users and a zip for everyone else, each with the version number in its name. Then verify them.

How it works: the terminal below is a real Linux machine running in your browser. Click it and type. Tasks tick themselves off as you complete them; questions are answered in the box under each task. Press Reset any time for a fresh machine. Your password on this machine (for sudo) is student.

Getting your Linux machine ready…

The first start downloads about 20 MB. After that your browser keeps it, and labs start in a moment.

Hints

Clean the build folder before you package it, or the junk ends up in both archives.

sha256sum file1 file2 > SHA256SUMS writes one line per file.

Solution explanation

First the folder is cleaned: build artefacts (.debug) and the version-control folder (.git) shouldn't ship. Then the same tree is packaged two ways: tar -czf for a Linux .tar.gz and zip -r for a cross-platform .zip, both named with the version from VERSION. sha256sum writes a checksum file so downloaders can verify the archives haven't been tampered with.

Show solution

cat build/VERSION
rm build/bin/app.debug
rm -r build/.git
tar -czvf dist/app-2.3.0.tar.gz build
zip -r dist/app-2.3.0.zip build
tar -tzf dist/app-2.3.0.tar.gz
unzip -l dist/app-2.3.0.zip
cd dist && sha256sum app-2.3.0.tar.gz app-2.3.0.zip > SHA256SUMS
cat SHA256SUMS