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Fix #85 and #228: errors fetching VCS packages from a mirror.
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- 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.
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- 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.
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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.
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Add ability to prefer particular versions in packages.
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fix a few comment typos
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- 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.
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- 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.
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resource directive : implementation + clang / llvm use case
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Fix #254: libtool & distutils want certain compiler names.
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fetch: add options to fetch missing or all deps
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fix environment module path when $SYS_TYPE isn't defined
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Allows passing program in as a string. Example:
$ spack python -c 'print 2+3'
5
Also imports spack module by default into the environment.
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Bugfix/244 uninstall errors
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This changes the compiler wrappers so that they are called by the same
name as the wrapped compiler. Many builds make assumptions about
compiler names, and we need the spack compilers to be recognizable so
that build systems will get their flags right.
This adds per-compiler subdirectories to lib/spack/spack/env directory
that contain symlinks to cc for the C, C++, F77, and F90
compilers. The build now sets CC, CXX, F77, and F90 to point to these
links instead of to the generically named cc, c++, f77, and f90
wrappers.
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- Extension logic didn't take conditional deps into account.
- Extension methods now check for whether the extnesion is
in the extendee map AND whether the dependency is actually present
in the spec yet.
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Fix #238: Database specs need to be concrete when read in as well.
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This changes the hash algorithm so that it does much less object
allocation and copying, and so that it is correct.
The old version of `_cmp_key()` would call `sorted_deps`, which would
call `flat_dependencies` to get a list of dependencies so that it
could sort them in alphabetical order. This isn't necessary in the
`_cmp_key()`, and in fact we want more DAG structure than that to be
included in the `_cmp_key()`.
The new version constructs a tuple without copying the Spec DAG, and
the tuple contains hashes of sub-DAGs that are computed recursively
in-place. This is way faster than the previous algorithm and reduces
the numebr of copies significantly. It is also a correct DAG hash.
Example timing and copy counts for the different hashing algorithms
we've tried:
Original (wrong) Spec hash:
```
106,170 copies
real 0m5.024s
user 0m4.949s
sys 0m0.104s
```
Spec hash using YAML `dag_hash()`:
```
3,794 copies
real 0m5.024s
user 0m4.949s
sys 0m0.104s
New no-copy, no-YAML hash:
```
3,594 copies
real 0m2.543s
user 0m2.435s
sys 0m0.104s
```
So now we have a hash that is correct AND faster.
The remaining ~3k copies happen mostly during concretization, and as
all packages are initially loaded. I believe this is because Spack
currently has to load all packages to figure out virtual dependency
information; it could also be becasue there ar a lot of lookups of
partial specs in concretize. I can investigate this further.
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- Gets rid of last vestige of old-style specs.
- Uses new hashing for lookup
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Small additions to fetch to make it easier to fetch all files necessary for a
build on a system without network connectivity.
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resource : support for finer grained linking of resources
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they are archive URLs)
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llvm : libc++ variant
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URLFetchStrategy
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- _cross_provider_maps() had suffered some bit rot (map returned was
ill-formed but still worked for cases with one vdep)
- ProviderIndex.satisfies() was only checking whether the result map
was non-empty. It should check whether all common vdeps are *in*
the result map, as that indicates there is *some* way to satisfy
*all* of them. We were checking whether there was some way to
satisfy *any one* of them, which is wrong.
- Above would cause a problem when there is more than one vdep provider.
- Added test that covers this case.
- Added `constrained()` method to Spec. Analogous to `normalized()`:
`constrain():constrained() :: normalize():normalized()`
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Fixed -l flag for 'spack extensions'
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clean --dist has been removed, command fixed to something that works.
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