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Uninstall: tolerate hook failures when force=true (#16513)

Peter Scheibel authored 4 years ago

Fixes #16478

This allows an uninstall to proceed even when encountering pre-uninstall
hook failures if the user chooses the --force option for the uninstall.

This also prevents post-uninstall hook failures from raising an exception,
which would terminate a sequence of uninstalls. This isn't likely essential
for #16478, but I think overall it will improve the user experience: if
the post-uninstall hook fails, there isn't much point in terminating a
sequence of spec uninstalls because at the point where the post-uninstall
hook is run, the spec has already been removed from the database (so it
will never have another chance to run).

Notes:

* When doing spack uninstall -a, certain pre/post-uninstall hooks aren't
  important to run, but this isn't easy to track with the current model.
  For example: if you are uninstalling a package and its extension, you
  do not have to do the activation check for the extension.
* This doesn't handle the uninstallation of specs that are not in the DB,
  so it may leave "dangling" specs in the installation prefix

650ab563

650ab563 4 years ago

Name	Last commit	Last update
.github
bin
etc/spack/defaults
lib/spack
share/spack
var/spack
.codecov.yml
.coveragerc
.dockerignore
.flake8
.flake8_packages
.gitattributes
.gitignore
.mailmap
.readthedocs.yml
.travis.yml
CHANGELOG.md
COPYRIGHT
LICENSE-APACHE
LICENSE-MIT
NOTICE
README.md
pytest.ini

Spack

Spack is a multi-platform package manager that builds and installs multiple versions and configurations of software. It works on Linux, macOS, and many supercomputers. Spack is non-destructive: installing a new version of a package does not break existing installations, so many configurations of the same package can coexist.

Spack offers a simple "spec" syntax that allows users to specify versions and configuration options. Package files are written in pure Python, and specs allow package authors to write a single script for many different builds of the same package. With Spack, you can build your software all the ways you want to.

See the Feature Overview for examples and highlights.

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$ git clone https://github.com/spack/spack.git
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Todd Gamblin, Matthew P. LeGendre, Michael R. Collette, Gregory L. Lee, Adam Moody, Bronis R. de Supinski, and W. Scott Futral. The Spack Package Manager: Bringing Order to HPC Software Chaos. In Supercomputing 2015 (SC’15), Austin, Texas, November 15-20 2015. LLNL-CONF-669890.

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