More progress towards llama distribution install

llama_toolchain/distribution/install_distribution.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+set -euo pipefail
+
+error_handler() {
+  echo "Error occurred in script at line: ${1}" >&2
+  exit 1
+}
+
+# Set up the error trap
+trap 'error_handler ${LINENO}' ERR
+
+ensure_conda_env_python310() {
+  local env_name="$1"
+  local pip_dependencies="$2"
+  local python_version="3.10"
+
+  # Check if conda command is available
+  if ! command -v conda &>/dev/null; then
+    echo "Error: conda command not found. Is Conda installed and in your PATH?" >&2
+    exit 1
+  fi
+
+  # Check if the environment exists
+  if conda env list | grep -q "^${env_name} "; then
+    echo "Conda environment '${env_name}' exists. Checking Python version..."
+
+    # Check Python version in the environment
+    current_version=$(conda run -n "${env_name}" python --version 2>&1 | cut -d' ' -f2 | cut -d'.' -f1,2)
+
+    if [ "$current_version" = "$python_version" ]; then
+      echo "Environment '${env_name}' already has Python ${python_version}. No action needed."
+    else
+      echo "Updating environment '${env_name}' to Python ${python_version}..."
+      conda install -n "${env_name}" python="${python_version}" -y
+    fi
+  else
+    echo "Conda environment '${env_name}' does not exist. Creating with Python ${python_version}..."
+    conda create -n "${env_name}" python="${python_version}" -y
+  fi
+
+  # Install pip dependencies
+  if [ -n "$pip_dependencies" ]; then
+    echo "Installing pip dependencies: $pip_dependencies"
+    conda run -n "${env_name}" pip install $pip_dependencies
+  fi
+}
+
+if [ "$#" -ne 2 ]; then
+  echo "Usage: $0 <environment_name> <pip_dependencies>" >&2
+  echo "Example: $0 my_env 'numpy pandas scipy'" >&2
+  exit 1
+fi
+
+env_name="$1"
+pip_dependencies="$2"
+
+ensure_conda_env_python310 "$env_name" "$pip_dependencies"