diff --git a/bin/ansible-python.sh b/bin/ansible-python.sh new file mode 100755 index 000000000..ee55fd55f --- /dev/null +++ b/bin/ansible-python.sh @@ -0,0 +1,44 @@ +#!/bin/sh +# SPDX-FileCopyrightText: 2026 MASH project contributors +# SPDX-FileCopyrightText: 2026 Slavi Pantaleev +# +# SPDX-License-Identifier: AGPL-3.0-or-later + +# Runs Python (with the given arguments) using the interpreter which runs Ansible. +# +# The playbook's Python scripts need PyYAML, which Ansible depends on. The interpreter which runs Ansible +# therefore has it, even when Ansible is installed in an environment of its own (e.g. with pipx), +# where the system's `python3` may lack it. +# +# The interpreter is taken from the first line (shebang) of `ansible-playbook`. +# If that is not a Python interpreter (e.g. `ansible-playbook` is a wrapper script), or Ansible is not installed, +# `python3` is used. + +set -eu + +python=python3 + +ansible_playbook_path=$(command -v ansible-playbook 2>/dev/null || true) +if [ -n "$ansible_playbook_path" ] && [ -f "$ansible_playbook_path" ]; then + shebang=$(head -n 1 "$ansible_playbook_path") + case "$shebang" in + "#!"*) + read -r interpreter next_word _ </dev/null 2>&1; then + python=$interpreter + fi + ;; + esac + ;; + esac +fi + +exec "$python" "$@"