eecf94cc8e
The `python` command's default behaviour can vary between OSes and even different versions of the same OS. On some systems, `python` might still point to Python 2 for backward compatibility, while on others, it might point to Python 3. As Mesa already requires "Python 3.6 or newer", use `python3` explicitly to ensure that the script is using a Python 3 interpreter. Moreover, this commit allows this script to run on macOS, as macOS doesn't have a `python` symlink or alias by default. Therefore, currently, when running this script in macOS, you get a "python: command not found" error. Signed-off-by: Maíra Canal <mcanal@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35918>
48 lines
1.2 KiB
Bash
Executable File
48 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eu
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readonly requirements_file=$1
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shift
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venv_dir="$(dirname "$requirements_file")"/.venv
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readonly venv_dir
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readonly venv_req=$venv_dir/requirements.txt
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readonly venv_python_version=$venv_dir/python-version.txt
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if [ -d "$venv_dir" ]
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then
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if [ ! -r "$venv_python_version" ]
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then
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echo "Python environment predates Python version checks."
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echo "It might be invalid and needs to be regenerated."
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rm -rf "$venv_dir"
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elif ! cmp --quiet <(python3 --version) "$venv_python_version"
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then
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old=$(cat "$venv_python_version")
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new=$(python3 --version)
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echo "Python version has changed ($old -> $new)."
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echo "Python environment needs to be regenerated."
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unset old new
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rm -rf "$venv_dir"
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fi
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fi
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if ! [ -r "$venv_dir/bin/activate" ]
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then
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echo "Creating Python environment..."
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python3 -m venv "$venv_dir"
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python3 --version > "$venv_python_version"
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fi
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# shellcheck disable=1091
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source "$venv_dir/bin/activate"
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if ! cmp --quiet "$requirements_file" "$venv_req"
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then
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echo "$(realpath --relative-to="$PWD" "$requirements_file") has changed, re-installing..."
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pip --disable-pip-version-check install --requirement "$requirements_file"
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cp "$requirements_file" "$venv_req"
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fi
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python3 "$@"
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