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calcurse-upgrade: Create a backup before upgrading

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Make sure the user doesn't end up in a configuration file being totally
broken if the upgrade script fails unexpectedly. The backup file is
removed if the conversion completed successfully.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
This commit is contained in:
Lukas Fleischer 2012-06-10 11:47:18 +02:00
parent fa1f0a5c44
commit 844d35e851
1 changed files with 22 additions and 0 deletions
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22
scripts/calcurse-upgrade.sh.in
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@ -40,6 +40,23 @@ if grep -q -e '^auto_save=' -e '^auto_gc=' -e '^periodic_save=' \
echo "$(gettext "Pre-3.0.0 configuration file format detected...")"
echo -n "$(gettext "Create temporary backup of the configuration file...")"
backupfile="$CONFFILE.calcurse-upgrade.old"
if [ -e "$backupfile" ]; then
echo
echo "$(gettext "Old backup file found:") \"$backupfile\"" >&2
echo "$(gettext "
If a previous conversion did not complete, please try to restore your
configuration from this backup and then remove the backup file.")" >&2
exit 1
fi
cp "$CONFFILE" "$backupfile"
echo -n ' '
echo "$(gettext 'done')"
tmpfile="$CONFFILE.calcurse-upgrade.tmp"
if [ -e "$tmpfile" ]; then
echo "$(gettext "Old temporary file found:") \"$tmpfile\"" >&2
@ -181,5 +198,10 @@ start over with a backup of your old configuration file.")" >&2
echo -n ' '
echo "$(gettext 'done')"
echo -n "$(gettext "Remove temporary backup...")"
rm "$backupfile"
echo -n ' '
echo "$(gettext 'done')"
fi