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Spack can Use RHEL8's platform-python if nothing else is available. (#23857)

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This adds RHEL8's `/usr/libexec/platform-python` to Spack's list of preferred
pythons. It will only be used if no other `python` is available in the `PATH`.

We have been testing with this python for a while now, and it seems to do all
that we need. If Spack one day isn't able to work with it, we'll take it out,
but for now it is useful to allow Spack to be used on RHEL8 without a dedicated
`python` installation.
This commit is contained in:
Todd Gamblin 2021-05-22 15:35:07 -07:00 committed by GitHub
parent 17473a08ff
commit d45674c1cb
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 2 additions and 3 deletions
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2
.github/workflows/unit_tests.yaml vendored
View file

@ -283,8 +283,6 @@ jobs:
useradd spack-test useradd spack-test
chown -R spack-test . chown -R spack-test .
- name: Run unit tests - name: Run unit tests
env:
SPACK_PYTHON: /usr/libexec/platform-python
shell: runuser -u spack-test -- bash {0} shell: runuser -u spack-test -- bash {0}
run: | run: |
source share/spack/setup-env.sh source share/spack/setup-env.sh

3
bin/spack
View file

@ -11,7 +11,8 @@
# See https://stackoverflow.com/a/47886254 # See https://stackoverflow.com/a/47886254
""":" """:"
# prefer SPACK_PYTHON environment variable, python3, python, then python2 # prefer SPACK_PYTHON environment variable, python3, python, then python2
for cmd in "${SPACK_PYTHON:-}" python3 python python2; do SPACK_PREFERRED_PYTHONS="python3 python python2 /usr/libexec/platform-python"
for cmd in "${SPACK_PYTHON:-}" ${SPACK_PREFERRED_PYTHONS}; do
if command -v > /dev/null "$cmd"; then if command -v > /dev/null "$cmd"; then
export SPACK_PYTHON="$(command -v "$cmd")" export SPACK_PYTHON="$(command -v "$cmd")"
exec "${SPACK_PYTHON}" "$0" "$@" exec "${SPACK_PYTHON}" "$0" "$@"