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#!/usr/bin/env bash
#
# Description:
# Check to see if dependencies are installed.
# If not, warn the user and tell them how to
# install these dependencies.
#
# Usage:
# check-deps <dep> ...
#
# Options:
# One or more dependencies. Must use name of binary.
for dep in "$@"; do
if ! which $dep &> /dev/null; then
# Map binary name to package name
case $dep in
sphinx-apidoc|sphinx-build)
spack_package=py-sphinx
pip_package=sphinx
;;
coverage)
spack_package=py-coverage
pip_package=coverage
;;
flake8)
spack_package=py-flake8
pip_package=flake8
;;
dot)
spack_package=graphviz
;;
git)
spack_package=git
;;
hg)
spack_package=mercurial
pip_package=mercurial
;;
svn)
spack_package=subversion
;;
*)
spack_package=$dep
pip_package=$dep
;;
esac
echo "ERROR: $dep is required to run this script."
echo
if [[ $spack_package ]]; then
echo "To install with Spack, run:"
echo " $ spack install $spack_package"
fi
if [[ $pip_package ]]; then
echo "To install with pip, run:"
echo " $ pip install $pip_package"
fi
if [[ $spack_package || $pip_package ]]; then
echo "Then add the bin directory to your PATH."
fi
exit 1
fi
# Flake8 and Sphinx require setuptools in order to run.
# Otherwise, they print out this error message:
#
# Traceback (most recent call last):
# File: "/usr/bin/flake8", line 5, in <module>
# from pkg_resources import load_entry_point
# ImportError: No module named pkg_resources
#
# Print a more useful error message if setuptools not found.
if [[ $dep == flake8 || $dep == sphinx* ]]; then
# Find which Python is being run
# Spack-installed packages have a hard-coded shebang
python_cmd=$(head -n 1 $(which $dep) | cut -c 3-)
# May not have a shebang
if [[ $python_cmd != *python* ]]; then
python_cmd=python
fi
# Check if setuptools is in the PYTHONPATH
if ! $python_cmd -c "import setuptools" 2> /dev/null; then
echo "ERROR: setuptools is required to run $dep."
echo "Please add it to your PYTHONPATH."
exit 1
fi
fi
done
echo "Dependencies found."
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