Check Python versions

Some operational systems (e.g RHEL 9.4) does not have the "python"
command, instead "python3" is used.

This commit update some scripts to programatically find out which Python
command it should use.

Signed-off-by: Lucas Alvares Gomes <[email protected]>

Author: umago

scripts/generate_packages_to_prefetch.py

@@ -20,6 +20,7 @@
 
 import shutil
 import subprocess
+import sys
 import tempfile
 from os.path import join
 from urllib.request import urlretrieve
@@ -142,12 +143,13 @@ def generate_packages_to_be_build(work_directory):
     into = join(work_directory, BUILDDEPS_SCRIPT_NAME)
     urlretrieve(url, into)  # noqa: S310
 
+    python_exe = sys.executable
     infile = "requirements-build.in"
     outfile = "requirements-build.txt"
 
     # generate file requirements-build.in
     command = (
-        "python pip_find_builddeps.py requirements.txt --append "
+        f"{python_exe} pip_find_builddeps.py requirements.txt --append "
         + f"--only-write-on-update --ignore-errors --allow-binary -o {infile}"
     )
     shell(command, work_directory)

scripts/get_ocp_plaintext_docs.sh

@@ -3,13 +3,23 @@ set -eou pipefail
 
 OCP_VERSION=$1
 
+# Find the available Python version
+if command -v python3 &> /dev/null; then
+    PYTHON="python3"
+elif command -v python &> /dev/null; then
+    PYTHON="python"
+else
+    echo "Neither python nor python3 is available"
+    exit 1
+fi
+
 trap "rm -rf openshift-docs" EXIT
 
 rm -rf ocp-product-docs-plaintext/${OCP_VERSION}
 
 git clone --single-branch --branch enterprise-${OCP_VERSION} https://github.com/openshift/openshift-docs.git
 
-python scripts/asciidoctor-text/convert-it-all.py -i openshift-docs -t openshift-docs/_topic_maps/_topic_map.yml \
+$PYTHON scripts/asciidoctor-text/convert-it-all.py -i openshift-docs -t openshift-docs/_topic_maps/_topic_map.yml \
     -d openshift-enterprise -o ocp-product-docs-plaintext/${OCP_VERSION} -a scripts/asciidoctor-text/${OCP_VERSION}/attributes.yaml
 
 for f in $(cat config/exclude.conf); do