cfg/bin/arch-package-index

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#!/bin/bash
set -euo pipefail
source ${HOME}/bin/script_framework.sh
TARGET="${HOME}/.local/share/arch-package-index"
# Check for pacman (and with it for Archlinux)
which pacman >/dev/null 2>&1 || {
fail "Tool 'pacman' not found: This script only works for Archlinux"
}
# Check for comm to be installed
which comm >/dev/null 2>&1 || {
fail "Please install 'comm' utility"
}
# Ensure the target dir exists
mkdir -p ${TARGET}
# CD into target dir
pushd ${TARGET} >/dev/null 2>&1
if ! [ -d .git ]; then
step "Initializing empty git dir"
git init -q
fi
[ -f groups.txt ] || {
warn "No groups.txt found, creating one with 'base' group."
warn "You might want to edit your ${TARGET}/groups.txt and add more groups installed on your system..."
echo "base" >groups.txt
}
step "Collecting installed packages..."
# Collect packages not contained in groups
pacman -Qgq $(cat groups.txt) | sort >group-packages.txt
# Collect packages
comm -23 <(pacman -Qeq | sort) group-packages.txt >non-group-packages.txt
comm -23 <(pacman -Qeqn | sort) group-packages.txt >official-packages.txt
comm -23 non-group-packages.txt official-packages.txt >aur-packages.txt
# Remove temporary stores
rm group-packages.txt non-group-packages.txt
info "Package files updated"
step "Creating update commit..."
git_files=(
aur-packages.txt
groups.txt
official-packages.txt
)
git add "${git_files[@]}"
git commit -q --no-gpg-sign -m 'Update from arch-package-index' "${git_files[@]}"
popd >/dev/null 2>&1