aurcomm

#!/bin/bash

#
# retreive aur comments for a package
#   - package name can be specified or pulled from a PKGBUILD in $PWD
#   - specify -a to show all comments
#

AURURL="http://aur.archlinux.org"
ALL='&comments=all'
printf -v CON '\e[1;34m'
printf -v COFF '\e[0m'

commfilter() {
  xmllint --html --xpath \
    '//div[@class="pgbox"]/div[@class="comment-header"]/..' - 2>/dev/null |
    sed 's/<[^>]\+>//g;s/\t//g;s/\r$//
        /Comment by:/,/[[:alnum:]]\+/{/^$/d};
        s/&gt;/>/g;s/&lt;/</g;
        s/^\(Comment by:.*\)$/'"$CON"'\1'"$COFF"'/'

    # line 1: strip html tags, remove tabs and ^M
    # line 2: strip empty lines between timestamp and body
    # line 3: decode HTML
    # line 4: add color

}

[[ $1 = -a ]] && { showall=$ALL; shift; }

if ! (( $# )); then
  if [[ ! -f PKGBUILD ]]; then
    printf "error: no PKGBUILD found and no package name provided!\n"
    exit 1
  fi
  eval $(grep '^pkgname=' PKGBUILD)
fi

pkgname=${1:-$pkgname}
if ! pkgID=$(cower -i --format '%i' "$pkgname" 2>/dev/null); then
  printf "error: package \`%s' not found\n" "$pkgname"
  exit 1
fi

curl -s "$AURURL/packages.php?ID=$pkgID$showall" | commfilter | fmt -sw$(tput cols)