19 lines
467 B
Bash
Executable File
19 lines
467 B
Bash
Executable File
#!/usr/bin/env sh
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set -e
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# given a sorted list of packages, finds the ones which appear in none of the
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# dependencies of the listed packages.
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[ "$1" ] || { >&2 echo "usage: leaves <file>" && exit 1; }
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tmp="$(mktemp)"
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#trap "rm $tmp" EXIT INT HUP
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cat "$1" | while read foobar; do
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echo "getting $foobar dependencies..."
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lix deps "$foobar" | cut -d' ' -f1 >> "$tmp"
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done
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cp "$tmp" "$tmp.bak"
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cat "$tmp" | sort | uniq > "$tmp"
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comm -23 "$1" "$tmp"
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echo "$tmp"
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