The variants table in `spack info` is cramped, as the *widest* it can be
is 80 columns. And that's actually only sort of true -- the padding
calculation is off, so it still wraps on terminals of size 80 because it
comes out *slightly* wider.
This change looks at the terminal size and calculates the width of the
description column based on it. On larger terminals, the output looks
much nicer, and on small terminals, the output no longer wraps.
Here's an example for `spack info qmcpack` with 110 columns.
Before:
Name [Default] Allowed values Description
==================== ==================== ==============================
afqmc [off] on, off Install with AFQMC support.
NOTE that if used in
combination with CUDA, only
AFQMC will have CUDA.
build_type [Release] Debug, Release, The build type to build
RelWithDebInfo
complex [off] on, off Build the complex (general
twist/k-point) version
cuda [off] on, off Build with CUDA
After:
Name [Default] Allowed values Description
==================== ==================== ========================================================
afqmc [off] on, off Install with AFQMC support. NOTE that if used in
combination with CUDA, only AFQMC will have CUDA.
build_type [Release] Debug, Release, The build type to build
RelWithDebInfo
complex [off] on, off Build the complex (general twist/k-point) version
cuda [off] on, off Build with CUDA
0c0f11caf6