gopkgs.sh

#!/bin/bash

set -e

eval $(go env)

tmp=$(mktemp)
trap "rm -f '$tmp'" EXIT
find "$GOROOT/src" -name '*.go' -type f -printf '%h\n' \
    | grep -v -e '/cmd/' -e '/internal/' -e '/testdata/' \
    | sed -e "s%^$GOROOT/src/%^%" -e 's%$%$%' | sort -u > $tmp

if [[ $# -eq 0 ]]; then
    set -- $(equery -q depends dev-lang/go)
fi

files=$(equery -q files --filter=obj "$@")
elfs=$(scanelf -qyRF '#s%F' --symbol 'runtime.text' $files)
pkgs=""
for f in $elfs; do
    pkgs+=$(readelf -Ws "$f" \
        | sed -e 's%.* %%' -e '/\.\./d' -e 's%\.[^/]*%%' \
        | grep -f $tmp | sort -u)
done

sort <<<"$pkgs" | uniq -c | sort -n