71 lines
1.4 KiB
Bash
Executable File
71 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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source $(dirname "$0")/activate
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PYTHON_VERSION=${PYTHON_VERSION:-}
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function python() {
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# call get_python_exe only the first time it is required
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export PYTHON_EXECUTABLE=${PYTHON_EXECUTABLE:-$(python_executable)}
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if [ -x "${PYTHON_EXECUTABLE}" ]; then
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"${PYTHON_EXECUTABLE}" "$@"
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else
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exit 1
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fi
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}
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function python_executable() {
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local version=${PYTHON_VERSION:-}
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local executables=( $( list_python_executables ) )
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for executable in "${executables[@]}"; do
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if "${executable}" -c "${SELECT_PYTHON_EXECUTABLE_SCRIPT}" "${version}"; then
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echo "${executable}"
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exit 0
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fi
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done
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fail 1 "No such Python executable (PYTHON_VERSION=${PYTHON_VERSION})"
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}
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function list_python_executables() {
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PATH=${CI_TOOLS_ORIGINAL_PATH} which $(list_python_names) 2> /dev/null
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}
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function list_python_names() {
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local version=${PYTHON_VERSION}
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if [ "${version}" != "" ]; then
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echo "python${version}"
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fi
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echo python3.7
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echo python3.6
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echo python3
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echo python
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}
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function fail() {
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local error=$1
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shift
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echo "$@" 1>&2
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exit "${error}"
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}
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read -r -d '' SELECT_PYTHON_EXECUTABLE_SCRIPT << END_OF_SCRIPT
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import sys
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version = ".".join(str(i) for i in sys.version_info[:3])
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if version.startswith(sys.argv[1]):
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exit(0)
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else:
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exit(1)
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END_OF_SCRIPT
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if [ $(basename "$0") == python ]; then
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set -euo pipefail
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python "$@"
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fi
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