Revert no pyenv (#32547)

* Revert "`ubuntu_setup`: fix `No module apt_pkg` error when setting up (#32526)"

This reverts commit d850f07acb58e4fc6d530241a31c0917c2b6613e.

* Revert "Removal of pyenv (#32512)"

This reverts commit 41f72d5ca75aab9a9beb3181aca9f177e5a003f8.
old-commit-hash: 1eb938b8e8

tools/install_python_dependencies.sh

@@ -10,18 +10,50 @@ if [ "$(uname)" == "Darwin" ] && [ $SHELL == "/bin/bash" ]; then
   RC_FILE="$HOME/.bash_profile"
 fi
 
+if ! command -v "pyenv" > /dev/null 2>&1; then
+  echo "pyenv install ..."
+  curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
+  PYENV_PATH_SETUP="export PATH=\$HOME/.pyenv/bin:\$HOME/.pyenv/shims:\$PATH"
+fi
+
+if [ -z "$PYENV_SHELL" ] || [ -n "$PYENV_PATH_SETUP" ]; then
+  echo "pyenvrc setup ..."
+  cat <<EOF > "${HOME}/.pyenvrc"
+if [ -z "\$PYENV_ROOT" ]; then
+  $PYENV_PATH_SETUP
+  export PYENV_ROOT="\$HOME/.pyenv"
+  eval "\$(pyenv init -)"
+  eval "\$(pyenv virtualenv-init -)"
+fi
+EOF
+
+  SOURCE_PYENVRC="source ~/.pyenvrc"
+  if ! grep "^$SOURCE_PYENVRC$" $RC_FILE > /dev/null; then
+    printf "\n$SOURCE_PYENVRC\n" >> $RC_FILE
+  fi
+
+  eval "$SOURCE_PYENVRC"
+  # $(pyenv init -) produces a function which is broken on bash 3.2 which ships on macOS
+  if [ $(uname) == "Darwin" ]; then
+    unset -f pyenv
+  fi
+fi
+
 export MAKEFLAGS="-j$(nproc)"
 
-
+PYENV_PYTHON_VERSION=$(cat $ROOT/.python-version)
+if ! pyenv prefix ${PYENV_PYTHON_VERSION} &> /dev/null; then
+  # no pyenv update on mac
+  if [ "$(uname)" == "Linux" ]; then
+    echo "pyenv update ..."
+    pyenv update
+  fi
+  echo "python ${PYENV_PYTHON_VERSION} install ..."
+  CONFIGURE_OPTS="--enable-shared" pyenv install -f ${PYENV_PYTHON_VERSION}
+fi
+eval "$(pyenv init --path)"
 
 echo "update pip"
-if [ ! -z "$VIRTUAL_ENV_ROOT" ] || [ ! -z "$INSTALL_DEADSNAKES_PPA" ] ; then
-  if [ -z "$VIRTUAL_ENV_ROOT" ]; then
-    export VIRTUAL_ENV_ROOT="venv"
-  fi
-  python3 -m venv --system-site-packages $VIRTUAL_ENV_ROOT
-  source $VIRTUAL_ENV_ROOT/bin/activate
-fi
 pip install pip==24.0
 pip install poetry==1.7.0
 
@@ -39,6 +71,7 @@ poetry self add poetry-dotenv-plugin@^0.1.0
 
 echo "pip packages install..."
 poetry install --no-cache --no-root
+pyenv rehash
 
 [ -n "$POETRY_VIRTUALENVS_CREATE" ] && RUN="" || RUN="poetry run"