This solution doesn't really make me happy, but does seem to work. It
sorts the resources by the length of the string representing their
destination. Since any nested resource must contain another resource's
name in its path, it seems that should work, but there should be a
better way to do this.
This allows resources to be placed into subdirectory trees that may not
exist in the base package, and may depend on other resources to be
staged later.
A pile of libraries and tools, libedit is actually important as a
replacement of readline for non-GPL projects. Also ninja may be
worthwhile for some of the larger CMake projects, like llvm/clang.
- Stage and fetcher were not being set up properly when fetching using
a different fetch strategy than the default one for the package.
- This is fixed but fetch/stage/mirror logic is still too complicated
and long-term needs a rethink.
- Spack will now print a warning when fetching a checksum-less tarball
from a mirror -- users should be careful to use https or local
filesystem mirrors for this.
- Move `find_versions_of_archive` from spack.package to `spack.util.web`.
- `spider` funciton now just uses the link parsing it already does to
return links. We evaluate actual links found in the scraped pages
instead of trying to reconstruct them naively.
- Add `spack url-parse` command, which you can use to show how Spack
interprets the name and version in a URL.
Versions found by wildcard URLs are different from versions found by
parse_version, etc. The wildcards are constructed more haphazardly
than the very specific URL patterns in url.py, so they can get things
wrong. e.g., for this URL:
https://software.lanl.gov/MeshTools/trac/attachment/wiki/WikiStart/mstk-2.25rc1.tgz
We miss the 'rc' and only return 2.25r as the version if we ONLY use
URL wildcards.
Future: Maybe use the regexes from url.py to scrape web pages, and
then compare them for similarity with the original URL, instead of
trying to make a structured wildcard URL pattern? This might yield
better results.
- remove getcwd() check (seems arbitrary -- if users set their TMPDIR
to this why stop them?)
- try a number of common locations and try per-user directories in
them first.
- Adding `preferred=True` to a version directive will change its sort
order in concretization.
- This provides us a rudimentary ability to keep the Spack stack
stable as new versions are added.
- Having multiple stacks will come next, but this at least allows us
to specify default versions of things instead of always taking the
newest.
