lib/aur-repo-filter

   1 #!/bin/bash
   2 # aur-repo-filter - filter packages in the Arch Linux repositories
   3 [[ -v AUR_DEBUG ]] && set -o xtrace
   4 argv0='repo-filter'
   5 PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
   6 arch_repo=(core extra testing community{,-testing} multilib{,-testing})
   7
   8 # default options
   9 sync_repo=0
  10
  11 # The command line will hit ARG_MAX on approximately 70k packages;
  12 # spread arguments with xargs (and printf, as a shell built-in).
  13 satisfies() {
  14     #global sift_args
  15     xargs -a <(printf -- "--satisfies=%s\n" "$@") pacsift "${sift_args[@]}" <&-
  16 }
  17
  18 provides() {
  19     #global info_args
  20     pacinfo "${info_args[@]}" | awk -F'[:<=>]' '
  21         /Name:/       { pkgname=$2; }
  22         /Repository:/ { repo=$2
  23                         print repo, pkgname, pkgname; }
  24         /Provides:/   { print repo, pkgname, $2; }
  25         /Replaces:/   { print repo, pkgname, $2; }
  26     '
  27 }
  28
  29 usage() {
  30     plain >&2 'usage: %s [-d repo] [-S]' "$argv0"
  31     exit 1
  32 }
  33
  34 source /usr/share/makepkg/util/parseopts.sh
  35
  36 opt_short='d:a'
  37 opt_long=('all' 'sync' 'config:' 'database:' 'sysroot:')
  38 opt_hidden=('dump-options' 'repo:')
  39
  40 if ! parseopts "$opt_short" "${opt_long[@]}" "${opt_hidden[@]}" -- "$@"; then
  41     usage
  42 fi
  43 set -- "${OPTRET[@]}"
  44
  45 unset argv_repo sift_args info_args
  46 while true; do
  47     case "$1" in
  48         -a|--all|--sync)
  49             sync_repo=1 ;;
  50         -d|--database|--repo)
  51             shift; argv_repo+=("$1") ;;
  52         --config)
  53             shift; sift_args+=(--config="$1")
  54             info_args+=(--config="$1") ;;
  55         --sysroot)
  56             shift; sift_args+=(--sysroot="$1")
  57             info_args+=(--sysroot="$1") ;;
  58         --dump-options)
  59             printf -- '--%s\n' "${opt_long[@]}" ${AUR_DEBUG+"${opt_hidden[@]}"}
  60             printf -- '%s' "${opt_short}" | sed 's/.:\?/-&\n/g'
  61             exit ;;
  62         --) shift; break;;
  63     esac
  64     shift
  65 done
  66
  67 if (( sync_repo )); then
  68     sift_args+=(--sync)
  69 elif [[ -v argv_repo ]]; then
  70     sift_args+=(--exact "${argv_repo[@]/#/--repo=}")
  71 else
  72     sift_args+=(--exact "${arch_repo[@]/#/--repo=}")
  73 fi
  74
  75 # check for interactive terminal
  76 if [[ -t 0 ]]; then
  77     cat >&2 <<EOF
  78 Warning: Input is read from the terminal. You either know what you
  79 Warning: are doing, or you forgot to pipe data into $argv0.
  80 Warning: Press CTRL-D to exit.
  81 EOF
  82 fi
  83
  84 # associative array for input package names
  85 declare -A pkgset
  86 strset=()
  87
  88 while IFS= read -r str; do
  89     # store unversioned string as key
  90     name=${str%%[<>=]*}
  91
  92     # store version + operator as value (1 if unavailable)
  93     if (( ${#str} - ${#name} )); then
  94         pkgset[$name]=${str:${#name}}
  95     else
  96         pkgset[$name]=1
  97     fi
  98
  99     # store original versioned string
 100     strset+=("$str")
 101 done
 102
 103 # exit on empty stdin
 104 if ! (( ${#pkgset[@]} )); then
 105     exit 0
 106 fi
 107
 108 # Standard input is taken as "provides[<cmp><version>]", where pacsift
 109 # checks for a package satisfying this condition. Results are printed
 110 # as "repository/package", and piped to pacinfo to relate the names of
 111 # the original provides to its corresponding package(s).
 112 satisfies "${strset[@]}" | provides | while read -r repo package virtual; do
 113     if [[ ${pkgset[$package]} ]]; then
 114         printf '%s\n' "$package"
 115     fi
 116
 117     if [[ $virtual != "$package" ]]; then
 118         version=${pkgset[$virtual]:-1}
 119     else
 120         continue
 121     fi
 122
 123     case $version in
 124         1) printf >&2 'dependency %s satisfied by %s/%s\n' "$virtual" "$repo" "$package"
 125            printf '%s\n' "$virtual" ;;
 126         *) printf >&2 'dependency %s%s satisfied by %s/%s\n' "$virtual" "$version" "$repo" "$package"
 127            printf '%s\n' "$virtual" ;;
 128     esac
 129 done | sort | uniq
 130
 131 # vim: set et sw=4 sts=4 ft=sh: