mail-filters

My mail filters for aerc and/or mutt.

It's a set of text processing scripts that 'clean' plaintext email messages, such as...

removing cruft and repetitive text
removing non-plaintext MIME parts
inserting ANSI color codes
standardizing whitespace

Installation

Install digestion and parcels.

Run sudo make install.

Uninstallation

Run make uninstall.

Recommended aerc configuration:

In aerc.conf:

[filters]
text/html                     =/usr/local/share/mail-filters/html.sh
from,Archive of Our Own       =/usr/local/bin/parcels | /usr/local/share/mail-filters/ao3.awk
from,FanFiction               =/usr/local/bin/parcels | /usr/local/share/mail-filters/fanfiction.awk
from,ProPublica's Daily Digest=/usr/local/bin/parcels
to,~.@lists.ubuntu.com        =/usr/local/bin/parcels
to,~.@lists.debian.org        =/usr/local/bin/parcels | /usr/local/share/mail-filters/debian.awk
from,~.@freebsd.org           =/usr/local/bin/parcels | /usr/local/share/mail-filters/freebsd.awk
from,~.+@googlegroups.com     =/usr/local/bin/parcels | /usr/local/share/mail-filters/googlegroups.awk
from,~.+@lists.archlinux.org  =/usr/local/bin/digestion
from,~.+@python.org           =/usr/local/bin/digestion
from,~.+@gnu.org              =/usr/local/bin/digestion
text/*                        =/usr/local/bin/parcels

Recommended mutt configuration

In muttrc:

set display_filter = "path/to/filter.sh"

And in filter.sh:

tmp=$(mktemp /tmp/filter.XXXXXXXX)
cat > "$TMP"

if grep --quiet -e '^From: Archive of Our Own' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels | /usr/local/share/mail-filters/ao3.awk
elif grep --quiet -e '^From: FanFiction' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels | /usr/local/share/mail-filters/fanfiction.awk
elif grep --quiet -e '^From: ProPublica\'s Daily Digest' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels
elif grep --quiet -e '^To:.*@lists.ubuntu.com' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels
elif grep --quiet -e '^To:.*@lists.debian.org' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels | /usr/local/share/mail-filters/debian.awk
elif grep --quiet -e '^From:.*@freebsd.org' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels | /usr/local/share/mail-filters/freebsd.awk
elif grep --quiet -e '^From:.*@googlegroups.com' "$TMP"; then
  cat "$TMP" | /usr/local/bin/parcels | /usr/local/share/mail-filters/googlegroups.awk
elif grep --quiet -e '^From:.*@archlinux.org' "$TMP"; then
  cat "$TMP" | /usr/local/bin/digestion
elif grep --quiet -e '^From:.*@python.org' "$TMP"; then
  cat "$TMP" | /usr/local/bin/digestion
elif grep --quiet -e '^From:.*@gnu.org' "$TMP"; then
  cat "$TMP" | /usr/local/bin/digestion
else
  cat "$TMP" | /usr/local/bin/parcels
fi

rm -f "$TMP"

License