2Shirt/duplicity-backup.sh
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Adaptation of the script's self-backup process resulting from puredoze's enhancement

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This commit is contained in:
Zertrin 2012-08-15 01:44:23 +02:00
parent 528de37573
commit 86ed0651c5
3 changed files with 21 additions and 3 deletions
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5
CHANGELOG
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@ -1,3 +1,8 @@
0.8.1 (15 August 2012)
======================
* Added support for using separate signature and encryption keys [puredoze]
* Adaptation of the script's self-backup process resulting from puredoze's enhancement
0.8 (05 August 2012)
===================
* Improved argument parsing. Now the script is insensitive to the order of appearance of the options and handles correctly optional options parameters

2
duplicity-backup.conf.example
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@ -63,6 +63,8 @@ PASSPHRASE="foobar_gpg_passphrase"
# (see http://www.debian-administration.org/articles/209#d0e109).
# If you are not running the script from a cron, duplicity should prompt you for the
# GPG_SIGN_KEY password.
# If you choose to use the same GPG key for encryption and signature, set it both
# in GPG_ENC_KEY and GPG_SIGN_KEY.
# Comment out if you're using only PASSPHRASE (symmetric encryption) or not using
# encryption at all.
GPG_ENC_KEY="foobar_gpg_key"

17
duplicity-backup.sh
View file

@ -172,7 +172,7 @@ size information unavailable."
NO_S3CMD_CFG="WARNING: s3cmd is not configured, run 's3cmd --configure' \
in order to retrieve remote file size information. Remote file \
size information unavailable."
README_TXT="In case you've long forgotten, this is a backup script that you used to backup some files (most likely remotely at Amazon S3). In order to restore these files, you first need to import your GPG private key (if you haven't already). The key is in this directory and the following command should do the trick:\n\ngpg --allow-secret-key-import --import duplicity-backup-secret.key.txt\n\nAfter your key as been succesfully imported, you should be able to restore your files.\n\nGood luck!"
README_TXT="In case you've long forgotten, this is a backup script that you used to backup some files (most likely remotely at Amazon S3). In order to restore these files, you first need to import your GPG private(s) key(s) (if you haven't already). The key(s) is/are in this directory and the following command(s) should do the trick:\n\nIf you were using the same key for encryption and signature:\n gpg --allow-secret-key-import --import duplicity-backup-encryption-and-sign-secret.key.txt\nOr if you were using two separate keys for encryption and signature:\n gpg --allow-secret-key-import --import duplicity-backup-encryption-secret.key.txt\n gpg --allow-secret-key-import --import duplicity-backup-sign-secret.key.txt\n\nAfter your key(s) has/have been succesfully imported, you should be able to restore your files.\n\nGood luck!"
CONFIG_VAR_MSG="Oops!! ${0} was unable to run!\nWe are missing one or more important variables in the configuration file.\nCheck your configuration because it appears that something has not been set yet."
if [ ! -x "$DUPLICITY" ]; then
@ -382,7 +382,11 @@ backup_this_script()
echo "You are backing up: "
echo " 1. ${SCRIPTPATH}"
echo " 2. GPG Secret Key: ${GPG_KEY}"
if [ "$GPG_ENC_KEY" = "$GPG_SIGN_KEY" ]; then
echo " 2. GPG Secret encryption and sign key: ${GPG_ENC_KEY}"
else
echo " 2. GPG Secret encryption key: ${GPG_ENC_KEY} and GPG secret sign key: ${GPG_SIGN_KEY}"
fi
if [ ! -z "$CONFIG" -a -f "$CONFIG" ];
then
@ -405,8 +409,15 @@ backup_this_script()
then
cp $CONFIG ${TMPDIR}/
fi
export GPG_TTY=`tty`
gpg -a --export-secret-keys ${GPG_KEY} > ${TMPDIR}/duplicity-backup-secret.key.txt
if [ "$GPG_ENC_KEY" = "$GPG_SIGN_KEY" ]; then
gpg -a --export-secret-keys ${GPG_ENC_KEY} > ${TMPDIR}/duplicity-backup-encryption-and-sign-secret.key.txt
else
gpg -a --export-secret-keys ${GPG_ENC_KEY} > ${TMPDIR}/duplicity-backup-encryption-secret.key.txt
gpg -a --export-secret-keys ${GPG_SIGN_KEY} > ${TMPDIR}/duplicity-backup-sign-secret.key.txt
fi
echo -e ${README_TXT} > ${README}
echo "Encrypting tarball, choose a password you'll remember..."
tar c ${TMPDIR} | gpg -aco ${TMPFILENAME}