~elementary-os/elementaryos/release-channel-packages-generator

#!/bin/bash

# This is script which generates a release channel package from a list of PPAs.
# It written by Sergey "Shnatsel" Davidoff

# Copyright (c) 2012 elementary Project

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# get channel name or output usage if none given
if [ "$1" = "" ]; then
echo "Parameters: channel-name ppa:some-team/some-ppa [ppa:some-other-team/some-other-ppa ...]
Example: ./generate_release_channel_package elementary-testing ppa:elementary-os/testing ppa:nemequ/sqlheavy" > /dev/stderr
exit 1
else
export channel="$1"
shift
fi

# sanity check
if [ "$1" = "" ]; then
echo "Error: no PPAs specified.
You must specify at least one PPA to include in the release channel." > /dev/stderr
exit 1
else
export ppa_list="$@"
fi

write_static_templates() {
# create required dirs
mkdir -p debian
mkdir -p debian/source
mkdir -p keys

# write static files
echo '3.0 (native)' > 'debian/source/format'
echo '7' > 'debian/compat'

echo '#!/usr/bin/make -f
%:
	dh $@' > debian/rules
}

get_signing_key_id_for_ppa() {
# accepts "ppa:some-person/some-ppa" sting as parameter, prints its signing key ID
ppa="$1"
tempfile=$(mktemp)
wget -nv --output-document="$tempfile" 'https://launchpad.net/~'$(echo $ppa | cut -d ':' -f 2 | sed 's|/|/+archive/|' ) || exit 1
keyID=$(grep '<code>1024R' "$tempfile" | tr -d ' ' | sed 's|<code>1024R/||' | sed 's|</code>||')
rm "$tempfile"
echo "$keyID"
}

get_debline_for_ppa() {
ppa="$1"
debline="http://ppa.launchpad.net/"$(echo $ppa | cut -d ':' -f 2)"/ubuntu "$( lsb_release -cs )" main"
echo "$debline"
}

get_sourceslist_filename_for_ppa() {
# picks a deterministic file name for the sources.list.d/ entry of the PPA, likely to be unique
# returns just the name of the file, not the full path to it
ppa="$1"
sourceslist_filename="$channel"'-channel-'$(echo $ppa | cut -d ':' -f 2 | tr '/' '-' )'-'$( lsb_release -cs )'.list'
echo "$sourceslist_filename"
}

download_public_key() {
# downloads signing key with given ID from keyserver.ubuntu.com
if ! [ -e keys/"$keyID".pub ]; then
gpg --keyserver keyserver.ubuntu.com --recv-keys 0x"$keyID"
gpg --output keys/"$keyID".pub --export "$keyID"
fi
}

write_copyright() {
echo 'This package was generated by an automated script written by:

    Sergey "Shnatsel" Davidoff <shnatsel@gmail.com>

Upstream Author(s):

    Sergey "Shnatsel" Davidoff <shnatsel@gmail.com>

Copyright:

    Copyright (C) 2012 elementary Project

License:

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This package is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program. If not, see <http://www.gnu.org/licenses/>.

On Debian systems, the complete text of the GNU General
Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".

The Debian packaging is:

    Copyright (C) 2012 Sergey "Shnatsel" Davidoff <shnatsel@gmail.com>

and is licensed under the GPL version 3, see above.' > debian/copyright
}

write_install() {
# debian/install
echo "keys /usr/share/$channel-release-channel/" > 'debian/install'
}

write_control() {
# debian/control
(
echo 'Source: '"$channel"'-release-channel'
echo 'Section: metapackages
Priority: optional
Maintainer: Sergey "Shnatsel" Davidoff <shnatsel@gmail.com>
Build-Depends: debhelper (>= 7)
Standards-Version: 3.9.2
'
echo 'Package: '"$channel"'-release-channel'
echo 'Architecture: all
Depends: ${misc:Depends}, ppa-purge-aptdaemon
Description: '"$channel"' release channel'
echo ' <insert something meaningful here>'
) > debian/control
}

write_changelog() {
# if there's no changelog yet, write one
if ! [ -e debian/changelog ]; then
name_and_email=$(bzr whoami)
if [ "$name_and_email" = "" ]; then
name_and_email='Your Name <name@example.com>'
fi
echo "$channel"'-release-channel (0.1) '$( lsb_release -cs )'; urgency=low

  * Initial Release.

 -- '"$name_and_email"'  '$(date -R) > debian/changelog
else
echo "debian/changelog already exists. You'll have to update it manually." > /dev/stderr
fi
}

write_preinst() {
(
echo '#!/bin/sh
# This file is auto-generated. Do not waste your time editing it.

# write sources.list entries
# we cannot simply ship them in the package because in this case they will
# be removed before we ppa-purge them (remember, ppa-purge is delayed,
# it happens AFTER postrm)'
for ppa in $ppa_list; do
debline=$(get_debline_for_ppa "$ppa")
sourceslist_filename=$(get_sourceslist_filename_for_ppa "$ppa")
echo "(
echo deb $debline
echo deb-src $debline
) > /etc/apt/sources.list.d/$sourceslist_filename"
done

echo '
# force sources.list entries to be writeable (LP: #399709)'
for ppa in $ppa_list; do
sourceslist_filename=$(get_sourceslist_filename_for_ppa "$ppa")
echo "chmod 664 /etc/apt/sources.list.d/$sourceslist_filename"
done

echo '
#DEBHELPER#'
) > debian/preinst
}

write_postinst() {
(
echo '#!/bin/sh
# This file is auto-generated. Do not waste your time editing it.

# import signing keys'
for ppa in $ppa_list; do
keyID=$(get_signing_key_id_for_ppa "$ppa")
download_public_key $keyID
echo "aptdcon --add-vendor-key /usr/share/$channel-release-channel/keys/$keyID.pub &"
done
echo '
case "$1" in
upgrade)
('
for ppa in $ppa_list; do
echo "echo $ppa"
done
echo ") > /var/tmp/$channel-release-channel/ppa-list-new.unsorted
sort /var/tmp/$channel-release-channel/ppa-list-new.unsorted > /var/tmp/$channel-release-channel/ppa-list-new
rm /var/tmp/$channel-release-channel/ppa-list-new.unsorted"
echo 'for ppa in $(comm -23 --nocheck-order /var/tmp/'"$channel"'-release-channel/ppa-list-old /var/tmp/'"$channel"'-release-channel/ppa-list-new); do
ppa-purge -r $ppa &
done'
echo 'rm /var/tmp/'"$channel"'-release-channel/ppa-list-old /var/tmp/'"$channel"'-release-channel/ppa-list-new'
echo ';;
'
echo '*)'
echo 'echo "Unrecognized action; probably nothing to do." > /dev/stderr'
echo ';;
'
echo 'esac

# enqueue repository data update
aptdcon --refresh &

#DEBHELPER#'
) > debian/postinst
}

write_postrm() {
(
echo '#!/bin/sh
# This file is auto-generated. Do not waste your time editing it.

case "$1" in'

echo 'upgrade)'
echo "mkdir -p /var/tmp/$channel-release-channel/"
echo '('
for ppa in $ppa_list; do
echo "echo $ppa"
done
echo ") > /var/tmp/$channel-release-channel/ppa-list-old.unsorted
sort /var/tmp/$channel-release-channel/ppa-list-old.unsorted > /var/tmp/$channel-release-channel/ppa-list-old
rm /var/tmp/$channel-release-channel/ppa-list-old.unsorted"
echo ';;
'
echo 'remove|purge)
# enqueue ppa-purges - requires the aptdaemon version of ppa-purge'
for ppa in $ppa_list; do
echo "ppa-purge -r $ppa &"
done
echo ';;
'
echo '*)'
echo 'echo "Unrecognized action; probably nothing to do." > /dev/stderr'
echo ';;
'
echo 'esac

#DEBHELPER#'
) > debian/postrm
}

# int main() {
write_static_templates
write_control
write_install
write_copyright
write_changelog
write_preinst
write_postinst
write_postrm
# }