Checking for Activate Script inside bin of venv for Activation

[prathambande]

With this PR, we conditionally check for activate script inside bin of venv to proceed ahead with its activation.
Script generated which contains the PR changes:

#!/bin/sh

echo 'export APP_PATH="/home/site/wwwroot"' >> ~/.bashrc
echo 'cd $APP_PATH' >> ~/.bashrc

# Enter the source directory to make sure the script runs where the user expects
cd /home/site/wwwroot

export APP_PATH="/home/site/wwwroot"
if [ -z "$HOST" ]; then
                export HOST=0.0.0.0
fi

if [ -z "$PORT" ]; then
                export PORT=80
fi

export PATH="/opt/python/3.13.11/bin:${PATH}"
echo 'export VIRTUALENVIRONMENT_PATH="/antenv"' >> ~/.bashrc
echo 'if [ -f /antenv/bin/activate ]; then . /antenv/bin/activate; fi' >> ~/.bashrc
echo Found virtual environment .tar.gz archive.
extractionCommand="tar -xzf antenv.tar.gz -C /antenv"
echo Removing existing virtual environment directory '/antenv'...
rm -fr /antenv
mkdir -p /antenv
echo Extracting to directory '/antenv'...
$extractionCommand
if [ -d antenv ]; then
    mv -f antenv _del_antenv || true
fi

if [ -d /antenv ]; then
    ln -sfn /antenv ./antenv
fi

echo "Done."
PYTHON_VERSION=$(python -c "import sys; print(str(sys.version_info.major) + '.' + str(sys.version_info.minor))")
echo Using packages from virtual environment 'antenv' located at '/antenv'.
export PYTHONPATH=$PYTHONPATH:"/antenv/lib/python$PYTHON_VERSION/site-packages"
echo "Updated PYTHONPATH to '$PYTHONPATH'"
if [ -f /antenv/bin/activate ]; then . /antenv/bin/activate; fi

Example: