59 lines
1.1 KiB
Bash
Executable File
59 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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_usage () {
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cat <<EOF
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Usage: ${1##*/} [-m|-e] [-q] FILE
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Display packages listed in FILE but not installed.
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-e: Compare FILE to explicitly installed packages.
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-h: Display this help.
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-m: Compare FILE to foreign installed packages.
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-q: Display installed packages not included in FILE.
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EOF
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}
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OPTION_EXPLICIT=""
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OPTION_FOREIGN=""
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OPTION_LOCAL="-1"
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while getopts ":hmqe" opt; do
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case $opt in
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e)
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OPTION_EXPLICIT="e" ;;
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h)
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_usage "$0"
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exit 1 ;;
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m)
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OPTION_FOREIGN="m" ;;
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q)
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OPTION_LOCAL="-2" ;;
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\?)
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_usage "$0"
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exit 1 ;;
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esac
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done
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shift $(($OPTIND - 1))
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if [ $# -eq 0 ]; then
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echo "Missing argument."
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_usage "$0"
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exit 1
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fi
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if ! command -v pacman >/dev/null 2>&1; then
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echo >&2 "'pacman' not found in PATH. Exiting."
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exit 1
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fi
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PKGLIST="$(mktemp)"
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FILE="$(mktemp)"
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pacman -Qq${OPTION_FOREIGN}${OPTION_EXPLICIT} | sort > "$PKGLIST"
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sort "$@" > "$FILE"
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comm -3 ${OPTION_LOCAL} "$PKGLIST" "$FILE"
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rm -f "$PKGLIST" "$FILE"
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## Zsh version.
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# comm -3 ${OPTION_LOCAL} <(pacman -Qq${OPTION_FOREIGN}${OPTION_EXPLICIT} | sort) <(sort "$*")
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