99 lines
2.4 KiB
Bash
Executable File
99 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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## live-build(7) - System Build Scripts
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## Copyright (C) 2016-2020 The Debian Live team
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## Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
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##
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## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
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## This is free software, and you are welcome to redistribute it
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## under certain conditions; see COPYING for details.
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set -e
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# Including common functions
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[ -e "${LIVE_BUILD}/scripts/build.sh" ] && . "${LIVE_BUILD}/scripts/build.sh" || . /usr/lib/live/build.sh
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# Setting static variables
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DESCRIPTION="Cache bootstrap stage"
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USAGE="${PROGRAM} {restore|save} [--force]"
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# Processing arguments and configuration files
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Init_config_data "${@}"
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_ACTION="${1}"
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shift
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if ! In_list "bootstrap" ${LB_CACHE_STAGES}; then
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exit 0
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fi
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# Set non-default stage file name
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# Note, this (plus the applicable extension added below) must match that used in `bootstrap_debootstrap`
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STAGE_FILE="bootstrap_cache.${_ACTION}"
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case "${_ACTION}" in
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restore)
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# Checking stage file
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Check_stagefile "${STAGE_FILE}"
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if [ -d cache/bootstrap ]
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then
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Echo_message "Restoring bootstrap stage from cache..."
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# Acquire lock file
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Acquire_lockfile
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# Removing old chroot
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rm -rf chroot
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# Catch failure condition.
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# The installer stage, if not 'none' or 'live' needs to copy cached
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# bootstrap packages, and will error if these do not exist. This
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# could be the case if bootstrap is cached but the packages were
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# wiped from the cache. This detects this condition and if it is the
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# case, ignores the cached bootstrap, forcing it to be rebuilt thus
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# re-caching the packages.
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if ! In_list "${LB_DEBIAN_INSTALLER}" live none &&
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! ls cache/packages.bootstrap/*.deb > /dev/null 2>&1
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then
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Echo_message "Cached bootstrap packages required but missing, ignoring cached bootstrap to force rebuild."
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exit 0
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fi
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# Restoring old cache
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cp -a cache/bootstrap chroot
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# Creating stage file
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Create_stagefile "${STAGE_FILE}"
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Create_stagefile "bootstrap"
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exit 0
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fi
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;;
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save)
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Echo_message "Saving bootstrap stage to cache..."
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# Checking stage file
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Check_stagefile "${STAGE_FILE}"
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# Acquire lock file
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Acquire_lockfile
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rm -rf cache/bootstrap
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mkdir -p cache
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cp -a chroot cache/bootstrap
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# Creating stage file
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Create_stagefile "${STAGE_FILE}"
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;;
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*)
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Echo_error "Invalid action parameter: '${_ACTION}'"
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Usage --fail
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;;
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esac
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