Utility script: check_so_dependencies.sh

check_so_dependencies.sh

#!/bin/bash

# Check if a library name or path was provided
if [ $# -ne 1 ]; then
    echo "Usage: $0 <library.so>"
    echo "Example: $0 libopencv_core.so"
    echo "         $0 /path/to/cv2.cpython-38-aarch64-linux-gnu.so"
    exit 1
fi

LIBRARY="$1"

# Function to find the library if only a name (not a full path) is given
find_library() {
    local libname="$1"
    # Strip 'lib' prefix and '.so' suffix if present, then search with ldconfig
    local basename=$(echo "$libname" | sed 's/^lib\(.*\)\.so$/\1/' | sed 's/\.so$//')
    local found=$(ldconfig -p | grep "lib${basename}.so" | head -n 1 | awk '{print $NF}')
    echo "$found"
}

# Determine if the input is a full path or just a library name
if [[ "$LIBRARY" == /* ]]; then
    # Full path provided
    if [ ! -f "$LIBRARY" ]; then
        echo "Error: Library file '$LIBRARY' not found."
        exit 1
    fi
    LIB_PATH="$LIBRARY"
else
    # Library name provided (e.g., libopencv_core.so)
    LIB_PATH=$(find_library "$LIBRARY")
    if [ -z "$LIB_PATH" ]; then
        echo "Error: Library '$LIBRARY' not found on the system."
        echo "Searched using ldconfig -p; ensure it's installed or provide the full path."
        exit 1
    fi
    echo "Found library at: $LIB_PATH"
fi

# Check if the file is a valid shared library
if ! file "$LIB_PATH" | grep -q "ELF.*shared object"; then
    echo "Error: '$LIB_PATH' is not a valid shared library."
    exit 1
fi

# List dependencies and check for missing ones
echo "Checking dependencies for: $LIB_PATH"
echo "----------------------------------------"
ldd "$LIB_PATH" | while read -r line; do
    # Extract library name and status
    if echo "$line" | grep -q "=>"; then
        LIB_NAME=$(echo "$line" | awk '{print $1}')
        LIB_LOCATION=$(echo "$line" | awk '{print $3}')
        if echo "$line" | grep -q "not found"; then
            echo "Missing: $LIB_NAME"
        else
            echo "Found: $LIB_NAME => $LIB_LOCATION"
        fi
    fi
done

echo "----------------------------------------"
echo "Summary of missing dependencies:"
ldd "$LIB_PATH" | grep "not found" | awk '{print $1}' | while read -r missing; do
    echo "- $missing"
done