Test entry points with editable install (#84002)

This allows collection of code coverage for the entry points.

test/integration/targets/entry_points/runme.sh

@@ -1,18 +1,11 @@
 #!/usr/bin/env bash
 
 set -eu -o pipefail
-source virtualenv.sh
-set +x
-unset PYTHONPATH
-
-base_dir="$(dirname "$(dirname "$(dirname "$(dirname "${OUTPUT_DIR}")")")")"
-bin_dir="$(dirname "$(command -v pip)")"
 
-# deps are already installed, using --no-deps to avoid re-installing them
+function check_entry_points() {
-pip install "${base_dir}" --disable-pip-version-check --no-deps
+    bin_dir="$(dirname "$(command -v pip)")"
-# --use-feature=in-tree-build not available on all platforms
 
-for bin in "${bin_dir}/ansible"*; do
+    for bin in "${bin_dir}/ansible"*; do
         name="$(basename "${bin}")"
 
         entry_point="${name//ansible-/}"
@@ -22,9 +15,31 @@ for bin in "${bin_dir}/ansible"*; do
 
         if [ "${name}" == "ansible-test" ]; then
             "${bin}" --help | tee /dev/stderr | grep -Eo "^usage:\ ansible-test\ .*"
-        python -m ansible "${entry_point}" --help | tee /dev/stderr | grep -Eo "^usage:\ ansible-test\ .*"
+            python.py -m ansible "${entry_point}" --help | tee /dev/stderr | grep -Eo "^usage:\ ansible-test\ .*"
         else
             "${bin}" --version | tee /dev/stderr | grep -Eo "(^${name}\ \[core\ .*|executable location = ${bin}$)"
-        python -m ansible "${entry_point}" --version | tee /dev/stderr | grep -Eo "(^${name}\ \[core\ .*|executable location = ${bin}$)"
+            python.py -m ansible "${entry_point}" --version | tee /dev/stderr | grep -Eo "(^${name}\ \[core\ .*|executable location = ${bin}$)"
         fi
-done
+    done
+}
+
+source virtualenv.sh
+set +x
+unset PYTHONPATH  # this causes the test to fail if it was started from an existing virtual environment
+
+base_dir="$(dirname "$(dirname "$(dirname "$(dirname "${OUTPUT_DIR}")")")")"
+
+# deps are already installed, using --no-deps to avoid re-installing them
+pip_options=(--disable-pip-version-check --no-deps)
+
+echo "==> check entry points using an editable install"
+
+pip install -e "${base_dir}" "${pip_options[@]}"
+check_entry_points
+pip uninstall -y ansible-core
+
+echo "==> check entry points using a normal install"
+
+pip install "${base_dir}" "${pip_options[@]}"
+check_entry_points
+pip uninstall -y ansible-core