We'd like to use a consistent checksum scheme everywhere so that we can:
a) incorporate archive checksums into our specs and have a
consistent hashing algorithm across all specs.
b) index mirrors with a consistent type of checksum, and not one that
is dependent on how spack packages are written.
- [x] convert existing md5, sha224, sha512, sha1 checksums to sha256
- remove the old LGPL license headers from all files in Spack
- add SPDX headers to all files
- core and most packages are (Apache-2.0 OR MIT)
- a very small number of remaining packages are LGPL-2.1-only
Replace use of `shutil.copytree` with `copy_tree` and `install_tree` functions in `llnl.util.filesystem`.
- `copy_tree` copies without setting permissions. It should be used to copy files around in the build directory.
- `install_tree` copies files and sets permissions. It should be used to copy files into the installation directory.
- `install` and `copy` are analogous single-file functions.
- add more extensive tests for these functions
- update packages to use these functions.
* Adding maven v3.5.0
Updating package file to include later version of maven but still signifying a preference for the older
* removing specific preference flag
Add a package that installed the pre-built maven distribution.
I've given up, for now, on building maven from source. That processed
stumbled on two points before I gave up:
1. It downloaded several hundred .{pop,jar} files and I despaired of
figuring out some way of mirroring and checksumming them; and
2. It exploded complaining about too many unacceptable license files,
which seems odd in its own source tree.
Perhaps someone with more Java fu that I admit to can figure it out.
In the meantime, this is useful.
