Add environment variable validation to start-agent.sh

.gitignore

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+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv

.python-version

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+3.10

pyproject.toml

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+[project]
+name = "cloudbt"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = []

scripts/start-kaggle-agent.sh

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+#!/bin/bash
+
+check_env_var() {
+    if [ -z "${!1// /}" ]; then
+        echo "Error: $1 is not set or is empty"
+        exit 1
+    fi
+}
+
+check_env_var OSS_ENDPOINT
+check_env_var OSS_ACCESS_KEY
+check_env_var OSS_SECRET_KEY
+check_env_var WORKER_NAME
+
+WORKING_DIR=/kaggle/working
+
+pip install git+https://gitea.oopsapi.com/yhydev/myscripts.git prefect_shell freqtrade prefect;
+freqtrade create-userdir --userdir $WORKING_DIR/user_data;
+mkdir -p $WORKING_DIR/user_data/data/binance;
+if [ ! -L $WORKING_DIR/user_data/data/binance/futures ]; then 
+ln -s /kaggle/input/bn-futures/futures $WORKING_DIR/user_data/data/binance/futures; 
+fi;
+cd $WORKING_DIR;
+if [ ! -f ~/.local/bin/mc ]; then
+mkdir -p ~/.local/bin
+wget https://dl.min.io/aistor/mc/release/linux-amd64/mc -O ~/.local/bin/mc
+chmod +x ~/.local/bin/mc
+fi
+export PATH=$PATH:~/.local/bin
+mc alias set oss $OSS_ENDPOINT $OSS_ACCESS_KEY $OSS_SECRET_KEY --api S3v4
+prefect worker start --name $WORKER_NAME --pool freqtrade -l 3