live-build/helpers/lh_chroot_local-packages

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#!/bin/sh
# lh_chroot_local-packages(1) - queue install of local packages into chroot
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# Copyright (C) 2006-2008 Daniel Baumann <daniel@debian.org>
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#
# live-helper comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
# This is free software, and you are welcome to redistribute it
# under certain conditions; see COPYING for details.
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set -e
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# Including common functions
LH_BASE="${LH_BASE:-/usr/share/live-helper}"
for FUNCTION in "${LH_BASE}"/functions/*.sh
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do
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. "${FUNCTION}"
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done
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# Setting static variables
DESCRIPTION="queue install of local packages into chroot"
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HELP=""
USAGE="${PROGRAM} [--force]"
Arguments "${@}"
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# Reading configuration files
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Read_conffile config/all config/common config/bootstrap config/chroot config/binary config/source
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Set_defaults
Echo_message "Begin queueing installation of local packages..."
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# Requiring stage file
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Require_stagefile .stage/bootstrap
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# Checking stage file
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Check_stagefile .stage/chroot_local-packages
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# Checking lock file
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Check_lockfile .lock
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# Creating lock file
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Create_lockfile .lock
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Install local packages using a local APT repo instead of using "dpkg -i" This patch modifies chroot_sources to build a small APT repo of the local-packages and use that for local package installation instead of "dpkg -i". This has a few advantages: * Removes the true ugliness that is "dpkg -i *.deb && apt-get install -f". This not only is slow and brittle, it causes scary "dpkg dependency error" messages to appear in build logs. * We can (ie. not implemented here) move to installing all the packages from: - lh_chroot_packages (ie. ${LH_PACKAGES}) - lh_chroot_local-packages (ie. config/chroot_local-packages/*.deb) - lh_chroot_local-packageslists - lh_chroot_packages-lists - lh_chroot_linux-image .. in one shot. This would primarily improve speed as we would not keep invoking ${LH_APT}, and package installations can share triggers and suchlike -- installing a custom live-initramfs via local packages currently costs an additional "update-initramfs -u" call. It would also fix a number of obscure dependency cases, such as the one documented in #475739, and--if the user is using aptitude--may even result in better resolution choices. * Removes some messy and somewhat brittle code in lh_chroot_linux-image that edgecases a local live-initramfs. The disadvantages are: * If local packages are being used and we are building in a chroot, we must refresh the sources list and rebuild the repo before building the binary images. (However, before this patch, we had to do this anyway if the binary mirrors were different from the chroot ones.) * We must add a little hack to the minimal hook to detect whether we are using local packages and not remove apt-utils (which creates the repository in lh_chroot_sources) if that is the case -- we cannot simply use "Install_package" inside lh_chroot_sources as we are not guaranteed to have working APT data because the minimal hook deliberately removes them!
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if ls chroot/root/local-packages/*.deb > /dev/null 2>&1
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then
gunzip < chroot/root/local-packages/Packages.gz | awk '/^Package: / { print $2 }' \
>> chroot/root/chroot_packages
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# Creating stage file
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Create_stagefile .stage/chroot_local-packages
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fi