postinst is in metche 1:1.2.2-3.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61  | #!/bin/sh
set -e
. /usr/share/debconf/confmodule
case "$1" in
  configure)
    TEMPFILE=`tempfile`
    cat "/usr/share/metche/config/metche.conf.default" > "$TEMPFILE"
    db_get metche/email
    EMAIL_ADDRESS="$RET"
    sed -e "s/^ *EMAIL_ADDRESS=.*/EMAIL_ADDRESS=\"$EMAIL_ADDRESS\"/" \
        -i "$TEMPFILE"
    db_get metche/changelog/type
    case "$RET" in
      "Single changelog file")
	db_get metche/changelog/file
	CHANGELOG_FILE="$RET"
	sed -e "s@^[# ]*CHANGELOG_FILE=.*@CHANGELOG_FILE=\"$CHANGELOG_FILE\"@" \
	    -e "s@^[# ]*CHANGELOG_DIR@#CHANGELOG_DIR@" -i "$TEMPFILE"
	;;
      "Multiple changelog files")
	db_get metche/changelog/directory
	CHANGELOG_DIR="$RET"
	sed -e "s@^[# ]*CHANGELOG_DIR=.*@CHANGELOG_DIR=\"$CHANGELOG_DIR\"@" \
	    -e "s@^[# ]*CHANGELOG_FILE@#CHANGELOG_FILE@" -i "$TEMPFILE"
	;;
      "No changelog monitoring")
	  sed -e "s@^[# ]*CHANGELOG_FILE@#CHANGELOG_FILE@" \
	      -e "s@^[# ]*CHANGELOG_DIR@#CHANGELOG_DIR@" -i "$TEMPFILE"
	;;
    esac
    ucf --debconf-ok --three-way "$TEMPFILE" "/etc/metche.conf"
    rm -f "$TEMPFILE"
    # Initialize metche data only when it was not configured before
    # (= no previous version number given as a second argument)
    if [ -z "$2" ]; then
        metche cron
    fi
  ;;
  abort-upgrade|abort-remove|abort-deconfigure)
  ;;
  *)
    echo "postinst called with unkwnow argument '$1'" >&2
    exit 0
  ;;
esac
exit 0
# vim: et sw=4
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