#! /bin/sh -e
#  __   _
#  |_) /|  Copyright (C) 2001  |  richard@
#  | \/¯|  Richard Atterer     |  atterer.net
#  ¯ '` ¯
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License, version 2. See
#  the file COPYING for details.

# Shell script for batch-processing .iso files
# Syntax: make-templates <directory-name>

# The script looks for all .iso and .raw files in the directory
# specified on the command line. Then it generates .jigdo and
# .template files with jigdo-file, placing them into two separate
# copies of the directory tree that contains the .iso files. The
# script renices itself to run at minimum priority.
#
# You will probably need to edit the variables below. Set mailto to a
# nonempty value to receive a notification mail once the script has
# finished.

pubHtml="$HOME/public_html"
baseUrl="http://cdimage.debian.org/~`whoami`" # corresponds to $pubHtml
jDir="jigdo" # relative to $pubHtml
tDir="jigdo/templates" # relative to $pubHtml
debianMirror="/home/ftp/debian" # NO slash at end!!!
nonusMirror="/home/ftp/debian/non-US" # NO slash at end!!!
jigdoFile="jigdo-file --cache=$HOME/jigdo-cache.db"
mailto="`whoami`" # set to "" not to send mail
mail="`mktemp /tmp/make-templates-XXXXXXXX`"
#______________________________________________________________________

if test "$#" -eq 0; then
    echo "Syntax: $0 <directory>"
    echo "        $0 <directory> <directory>/file <directory>/otherdir ..."
    echo "Duplicates dir structure of <directory>;"
    echo "  - jigdo files in \`$pubHtml/$jDir',"
    echo "  - templates in \`$pubHtml/$tDir'."
    echo "  - \`$pubHtml' must be available as"
    echo "    \`$baseUrl'."
    exit 1
fi
#________________________________________

function log() {
    printf "%s: %s\n" "`date -R`" "$1" >>"$mail"
}
echo >"$mail"
test "$mailto" \
&& trap "mail -s \"make-templates run on `hostname -f` finished\" \
             $mailto <\"$mail\"" EXIT
log "Start"
#________________________________________

renice 20 -p $$

dir="$1"
dirp="`dirname \"$dir\"`"
# Do not search all of $dir if further cmd args were specified
if test "$#" -gt 1; then shift; fi

# Find all ISOs
# Use sed to remove $dirp at front, and also remove all files not in $dir
find "$@" '(' -type f -o -type l ')' \
    '(' -name '*.iso' -o -name '*.raw' ')' \
| sed -n "sÿ^$dirp/\?ÿÿp" \
| while read file; do

    filep="`dirname \"$file\"`" # Parent dir of $file
    filestem="`echo $file | sed 's%\.[^.]\+$%%'`" # Remove .iso from $file
    jigdo="$pubHtml/$jDir/$filestem.jigdo" # Location of .jigdo

    mkdir -p "$pubHtml/$jDir/$filep" "$pubHtml/$tDir/$filep"

    # Supply input files, pipe them into jigdo-file
    find "$nonusMirror//" "$debianMirror//dists" "$debianMirror//doc" \
        "$debianMirror//indices" "$debianMirror//pool" \
        "$debianMirror//project" -type f \
    | egrep -v '/Contents|/Packages|/README|INDEX$|/Maintainers|/Release$|/debian-keyring\.tar\.gz$|/ls-lR|//doc/[^/]+/?[^/]*\.(txt|pdf|html)$' \
    | $jigdoFile make-template --force --files-from=- \
        --image="$dirp/$file" \
        --jigdo="$jigdo.tmp" \
        --template="$pubHtml/$tDir/$filestem.template" \
        --label Non-US="$nonusMirror" \
        --label Debian="$debianMirror" \
        --no-image-section --no-servers-section --report=noprogress

    # Append info to .jigdo
    echo >>"$jigdo.tmp"
    echo "[Image]" >>"$jigdo.tmp"
    echo "Filename=`basename \"$file\"`" >>"$jigdo.tmp"
    echo "Template=$baseUrl/$tDir/$filestem.template" >>"$jigdo.tmp"
    printf "Info='Generated on %s'\n" "`date -R`" >>"$jigdo.tmp"
#    echo >>"$jigdo.tmp"
#    echo "[Servers]" >>"$jigdo.tmp"
#    echo "Debian=ftp://cdimage.debian.org/debian-2.2r6-snapshot/" >>"$jigdo.tmp"
#    echo "Non-US=ftp://cdimage.debian.org/debian-2.2r6-snapshot/non-US/" >>"$jigdo.tmp"
#    echo "MD5Sum=ftp://ftp.fsn.hu/pub/debian-superseded/" >>"$jigdo.tmp"
    gzip -9 "$jigdo.tmp"
    mv "$jigdo.tmp.gz" "$jigdo"
    log "Finished \`$file'"
done
log "Exit"