#!/bin/sh -e
# Print orphaned packages.

trap 'rm -f $CPT_TMPDIR/packages-$$' EXIT

cd "$CPT_ROOT/var/db/cpt/installed"

# Get base packages.
[ -f "$CPT_ROOT/etc/cpt-base" ] && while read -r pkg _; do
    case "$pkg" in ''|\#*) continue; esac
    base=" $pkg $base"
done < "$CPT_ROOT/etc/cpt-base"

# Make a list of packages, but remove the base.
for pkg in *; do
    case "$base" in *" $pkg "*) continue; esac
    printf '%s\n' "$pkg"
done > "${CPT_TMPDIR:=/tmp}/packages-$$"

# List dependencies.
cat ./*/depends |

# Remove make dependencies.
while read -r dep make; do [ "$make" ] || printf '%s\n' "$dep"; done | sort -u |

# Remove dependencies from the list and print.
comm -23 "$CPT_TMPDIR/packages-$$" -