FindAllPackageDependencies.sh

#!/bin/bash

set -euox pipefail

# Update cache just in case.
#apt-file update
list_packages=""
# Find all files in current repository.
for i in $(find . )
do
  # Only process if it is actually a file.
  if [[ -f $i ]]
  then
    # Find if file has dependencies with `ldd`. This could return a failed
    # return code. The script should continue even if this one file doesn't
    # have dependencies.
    EXIT_CODE=0
    ldd $i  > /dev/null|| EXIT_CODE=$? && true
    if [[ $EXIT_CODE == 0 ]]
    then
      # Read each dependency, and fine the package they belong to.
      ldd $i | while read f;
      do
        f1="$(echo $f | cut -d ' ' -f 3)"
        if [[ -n $f1 && -z "$(echo $f1 | grep -e '(.*)')" && $f1 != "not" ]]
        then
          package=$(apt-file search $f1 |grep -e $f1$ | cut -d : -f 1)
          # Print `file : package`
          echo $f1:$package
          
          list_packages=($(echo "${list_packages[@]}") ${package})
        fi
      done
    fi
  fi
done
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# WARNING: Sorting and listing all packages doesn't work. This needs to be debugged!!!!!!!!!!!
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
echo "list:${list_packages[@]}"
echo "${list_packages[@]}" | tr ' ' '\n' | sort -u | tr '\n' ' '

# TODO: Look for Python files (with the command `file`) and assess each Python
# file dependency. Try to find `import` statements, and deduce Debian packages
# from there.