update-podfile

#!/bin/sh
set -euf

# Update via Podfile by using the `pod` package manager.
#
# Look for a Podfile file in this order:
#
#     $PODFILE
#     $XDG_CONFIG_HOME/pod/Podfile
#     $HOME/.config/pod/Podfile
#
if command -v pod >/dev/null 2>&1; then
    file=${PODFILE:-${XDG_CONFIG_HOME:-$HOME/.config}/pod/Podfile}
    if [ -r "$file" ]; then
        ( cd "$(dirname "$file")"; pod update )
    fi
fi