root / snf-image-helper / snf-image-helper.in @ 78e9f209
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#!/bin/bash |
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# Copyright (C) 2011 GRNET S.A. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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|
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. @commondir@/common.sh |
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|
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set -e |
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set -o pipefail |
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|
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if [ "x$1" != "x--force" ]; then |
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echo "WARNING: Exiting, this command would cause the system to halt." >&2 |
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echo "Use --force if you know what you're doing." >&2 |
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exit 1 |
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fi |
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|
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# terminate helper vm when the script exits |
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add_cleanup telinit 0 |
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|
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if [ ! -b "$FLOPPY_DEV" ]; then |
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log_error "Floppy device is not present!" |
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fi |
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|
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floppy=$(mktemp -d --tmpdir floppy.XXXXXX) |
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add_cleanup rmdir "$floppy" |
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|
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mount $FLOPPY_DEV $floppy |
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add_cleanup umount "$floppy" |
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|
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if [ -f "$floppy/rules" ]; then |
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source "$floppy/rules" |
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else |
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log_error "Floppy does not contain \`rules\' file" |
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fi |
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|
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if [ -n "$SNF_IMAGE_PROPERTIES" ]; then |
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properties=$(mktemp --tmpdir properties.XXXXXX) |
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add_cleanup rm "$properties" |
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echo "$SNF_IMAGE_PROPERTIES" | |
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"@scriptsdir@/decode-properties.py" "$properties" |
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source "$properties" |
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fi |
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|
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# Image mount point... |
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target=$(mktemp -d --tmpdir target.XXXXXX) |
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add_cleanup rmdir "$target" |
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|
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export SNF_IMAGE_TARGET="$target" |
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|
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if [ ! -d "@tasksdir@" ]; then |
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log_error "snf-image/tasks directory is missing" |
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fi |
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|
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RUN_PARTS=$(which run-parts) |
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if [ -z "$RUN_PARTS" ]; then |
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log_error "run-parts program is missing from the system" |
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fi |
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|
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# If something goes wrong with the tasks, try to umount the target filesystem |
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# in case it is left mounted... |
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trap '{ umount "$target"; }' ERR |
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|
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if [ -z "$SNF_IMAGE_PROPERTY_EXCLUDE_ALL_TASKS" ]; then |
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# Redirect standard error to standard output, |
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# prepend a timestamp before each line of output. |
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echo "Execute all snf-image tasks...." |
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$RUN_PARTS -v --exit-on-error "@tasksdir@" 2>&1| |
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while IFS= read -r line; do |
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echo $(date +%Y:%m:%d-%H:%M:%S.%N) "$line" |
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done |
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fi |
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|
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# Disable the trap. If code reaches here, the filesystem is unmounted. |
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trap - ERR |
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|
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echo "SUCCESS" > "$RESULT" |
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|
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cleanup |
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trap - EXIT |
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|
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# never called... |
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exit 0 |
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|
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# vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |