[WIP] Refactor script by removing coloring and checking dependencies first

[Copilot]

Cloud agent has begun work on make this script cle... and will update this pull request as work progresses.

Original prompt

make this script cleaner, remove the coloring and move the check to the beginning (cheks for curl, unzip, etc.)

The user has attached the following uncommitted or modified files as relevant context:
totalsegmentator.sh
#!/bin/bash

Configuration

URL="https://www.dropbox.com/scl/fi/oq0fsz8oauory204g8o6f/Totalsegmentator_dataset_v201.zip?rlkey=afnl2ixhqca2ukkf1v9p6jz7p&dl=1"
DEST_DIR="/mount/data/totalsegmentator"
ZIP_FILE="dataset.zip"

Colors for output

GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

Check dependencies

echo -e "${BLUE}Checking dependencies...${NC}"
MISSING_DEPS=0

if ! command -v unzip &> /dev/null; then
echo "Error: 'unzip' is not installed."
MISSING_DEPS=1
fi

if ! command -v curl &> /dev/null && ! command -v wget &> /dev/null; then
echo "Error: Neither 'curl' nor 'wget' is installed."
MISSING_DEPS=1
fi

if [ $MISSING_DEPS -ne 0 ]; then
echo "Please install missing dependencies to proceed."
exit 1
fi

echo -e "${BLUE}Starting download and setup process...${NC}"

Create destination directory

if [ ! -d "$DEST_DIR" ]; then
echo -e "Creating directory: ${GREEN}$DEST_DIR${NC}"
mkdir -p "$DEST_DIR"
else
echo -e "Directory ${GREEN}$DEST_DIR${NC} already exists."
fi

Download

echo -e "${BLUE}Downloading dataset from Dropbox...${NC}"
if command -v curl &> /dev/null; then
curl -L -o "$DEST_DIR/$ZIP_FILE" "$URL"
elif command -v wget &> /dev/null; then
wget -O "$DEST_DIR/$ZIP_FILE" "$URL"
else
echo "Error: Neither curl nor wget is installed. Please install one to proceed."
exit 1
fi

Unzip

echo -e "${BLUE}Unzipping archive...${NC}"
if command -v unzip &> /dev/null; then
unzip "$DEST_DIR/$ZIP_FILE" -d "$DEST_DIR"
else
echo "Error: unzip is not installed. Please install it to proceed."
exit 1
fi

Cleanup

echo -e "${BLUE}Cleaning up zip file...${NC}"
rm "$DEST_DIR/$ZIP_FILE"

echo -e "${GREEN}Success! Dataset located in: $(pwd)/$DEST_DIR${NC}"

totalsegmentator.sh

Created from VS Code via the GitHub Pull Request extension.

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