collective.recipe.backup 5.0.0

Introduction

This recipe is mostly a wrapper around the bin/repozo script in your Zope buildout. It requires that this script is already made available. If this is not the case, you will get an error like this when you run one of the scripts: bin/repozo: No such file or directory. This should be there when you are using plone.recipe.zeoserver. If this is not the case, the easiest way of getting a bin/repozo script is to add a new section in your buildout.cfg (do not forget to add it in the parts directive):

[repozo]
recipe = zc.recipe.egg
eggs = ZODB
# or this for an older version:
# eggs = ZODB3
scripts = repozo
dependent-scripts = true

bin/repozo is a Zope script to make backups of your Data.fs. Looking up the settings can be a chore. And you have to pick a directory where to put the backups. This recipe provides sensible defaults for your common backup tasks. Making backups a piece of cake is important!

• bin/backup makes an incremental backup.

• bin/restore restores the latest backup created by the backup script.

• bin/snapshotbackup makes a full snapshot backup, separate from the regular backups. Handy right before a big change in the site.

• bin/snapshotrestore restores the latest full snapshot backup.

• bin/zipbackup makes a zip backup. This zips the Data.fs and the blobstorage, handy for copying production data to your local machine, especially the blobstorage with its many files. Actually, zipping the Data.fs is standard, and we do not zip the blobstorage, because most files in there are already compressed. But we do combine the blobs in one tar archive. Note: the Data.fs and blobstorage (or other storages) are not combined in one file; you need to download multiple files. Enable this script by using the enable_zipbackup option.

• bin/ziprestore restores the latest zipbackup.

Compatibility

The recipe is tested with Python 2.7, 3.6, 3.7, 3.8, 3.9. In Plone terms it works fine on Plone 4, 5 and 6.

Note that the integration with plone.recipe.zope2instance is not tested on Python 3. It would pulls in too many dependencies, like Zope and ZODB.

Development

• Code repository: https://github.com/collective/collective.recipe.backup

• Issue tracker: https://github.com/collective/collective.recipe.backup/issues

• Obvious fixes, like fixing typos, are fine on master. For larger changes or if you are unsure, please create a branch or a pull request.

• The code comes with a buildout.cfg. Please bootstrap the buildout and run the created bin/test to see if the tests still pass. Please try to add tests if you add code. To run the tests for all supported Python versions, run tox.

• The long description of this package (as shown on PyPI), used to contain a big file with lots of test code that showed how to use the recipe. This grew too large, so we left it out. It is probably still good reading if you are wondering about the effect some options have. See src/collective/recipe/backup/tests/*.rst.

• We are tested on GitHub Actions: https://github.com/collective/collective.recipe.backup/actions

• Questions and comments to https://community.plone.org or to Maurits van Rees.

Example usage

The simplest way to use this recipe is to add a part in buildout.cfg like this:

[buildout]
parts = backup

[backup]
recipe = collective.recipe.backup

You can set lots of extra options, but the recipe authors like to think they have created sane defaults, so this single line stating the recipe name should be enough in most cases.

Running the buildout adds the backup, snapshotbackup, zipbackup, restore, snapshotrestore and ziprestore scripts to the bin/ directory of the buildout. Some are not added by default, others can be switched off.

Backed up data

Which data does this recipe backup?

• The Zope Object DataBase (ZODB) filestorage, by default located at var/filestorage/Data.fs.

• The blobstorage (since version 2.0) if your buildout uses it, by default located at var/blobstorage.

Data that is not backed up

Which data does this recipe not backup? Everything else of course, but specifically:

• Data stored in RelStorage will not be backed up. (You could still use this recipe to back up the filesystem blobstorage, possibly with the only_blobs option.)

• Other data stored in SQL, perhaps via SQLAlchemy, will not be backed up.

• It does not create a backup of your entire buildout directory.

Is your backup backed up?

Note that the backups are by default created in the var directory of the buildout, so if you accidentally remove the entire buildout, you also lose your backups. It should be standard practice to use the location option to specify a backup location in for example the home directory of the user. You should also arrange to copy that backup to a different machine/country/continent/planet.

Backup

Calling bin/backup results in a normal incremental repozo backup that creates a backup of the Data.fs in var/backups. When you have a blob storage it is by default backed up to var/blobstoragebackups.

Snapshots

A quick backup just before updating the production server is a good idea. But you may not want to interfere with the regular backup regime. For that, the bin/snapshotbackup is great. It places a full backup in, by default, var/snapshotbackups.

Zipbackups

For quickly grabbing the current state of a production database so you can download it to your development laptop, you want a full and zipped backup. The zipped part is important for the blobstorage, because you do not want to use scp to recursively copy over all those blob files: downloading one tarball is faster.

You can use the bin/zipbackup script for this. This script overrides a few settings, ignoring whatever is set in the buildout config section:

• archive_blob is turned on.

• keep is set to 1 to avoid keeping lots of needless backups.

• keep_blob_days is ignored because it is a full backup.

The script places a full backup in, by default, var/zipbackups and it puts a tarball of the blobstorage in var/blobstoragezips.

This script is not created by default. You can enable it by setting the enable_zipbackup option to true. Also, if backup_blobs is false, the scripts are useless, so we do not create them, even when you have enabled them explicitly.

Restore

Calling bin/restore restores the very latest normal incremental repozo backup and restores the blobstorage if you have that.

You can restore the very latest snapshotbackup with bin/snapshotrestore.

You can restore the zipbackup with bin/ziprestore.

You can also restore the backup as of a certain date. Just pass a date argument. According to repozo: specify UTC (not local) time. The format is yyyy-mm-dd[-hh[-mm[-ss]]]. So as a simple example, restore to 25 december 1972:

bin/restore 1972-12-25

or to that same date, at 2,03 seconds past 1:

bin/restore 1972-12-25-01-02-03

Since version 2.3 this also works for restoring blobs. We restore the directory from the first backup at or before the specified date. (Note that before version 4.0 we restored the directory from the first backup after the specified date, which should be fine as long as you did not do a database pack in between.)

Since version 2.0, the restore scripts ask for confirmation before starting the restore, as this is a potentially dangerous command. (“Oops, I have restored the live site but I meant to restore the test site.”) You need to explicitly type ‘yes’:

This will replace the filestorage (Data.fs).
This will replace the blobstorage.
Are you sure? (yes/No)?

Note that for large filestorages and blobstorages it may take long to restore. You should do a test restore and check how long it takes. Seconds? Minutes? Hours? Is that time acceptable or should you take other measures?

Names of created scripts

A backup part will normally be called [backup], leading to a bin/backup and bin/snapshotbackup. Should you name your part something else, the script names will also be different, as will the created var/ directories (since version 1.2):

[buildout]
parts = plonebackup

[plonebackup]
recipe = collective.recipe.backup
enable_zipbackup = true

That buildout snippet will create these scripts:

bin/plonebackup
bin/plonebackup-full
bin/plonebackup-zip
bin/plonebackup-snapshot
bin/plonebackup-restore
bin/plonebackup-ziprestore
bin/plonebackup-snapshotrestore

Supported options

The recipe supports the following options, none of which are needed by default. The most common ones to change are location and blobbackuplocation, as those allow you to place your backups in some system-wide directory like /var/zopebackups/instancename/ and /var/zopebackups/instancename-blobs/.

archive_blob

Use tar archiving functionality. false by default. Set it to true and backup/restore will be done with tar command. Note that tar command must be available on machine if this option is set to true. This option also works with snapshot backup/restore commands. As this counts as a full backup keep_blob_days is ignored. See the compress_blob option if you want to compress the archive.

alternative_restore_source

You can restore from an alternative source. Use case: first make a backup of your production site, then go to the testing or staging server and restore the production data there. See Alternative restore source

alternative_restore_sources

Backwards compatibility spelling for alternative_restore_source. This will no longer work in version 7.

backup_blobs

Backup the blob storage. Default is True on Python 2.6 (Plone 4) and higher, and False otherwise. This requires the blob_storage location to be set. If no blob_storage location has been set and we cannot find one by looking in the other buildout parts, we quit with an error (since version 2.22). If backup_blobs is false, enable_zipbackup cannot be true, because the zipbackup script is not useful then.

blob_storage

Location of the directory where the blobs (binary large objects) are stored. This is used in Plone 4 and higher, or on Plone 3 if you use plone.app.blob. This option is ignored if backup_blobs is false. The location is not set by default. When there is a part using plone.recipe.zeoserver, plone.recipe.zope2instance or plone.recipe.zope2zeoserver, we check if that has a blob-storage option and use that as default. Note that we pick the first one that has this option and we do not care about shared-blob settings, so there are probably corner cases where we do not make the best decision here. Use this option to override it in that case.

blob-storage

Alternative spelling for the preferred blob_storage, as plone.recipe.zope2instance spells it as blob-storage and we are using underscores in all the other options. Pick one.

blob_timestamps

New in version 4.0. Default is true (this was false before version 4.2). If false, we create blobstorage.0. The next time, we rotate this to blobstorage.1 and create a new blobstorage.0. With blob_timestamps = true, we create stable directories that we do not rotate. They get a timestamp, the same timestamp that the ZODB filestorage backup gets. For example: blobstorage.1972-12-25-01-02-03. Or with archive_blob = true: blobstorage.1972-12-25-01-02-03.tar. Because the filename is unpredictable, since version 4.1 we create a latest symlink to the most recent backup. Blob timestamps are not used with zipbackup, because this only keeps 1 backup, which means there is no confusion about which filestorage backup it belongs to.

blobbackuplocation

Directory where the blob storage will be backed up to. Defaults to var/blobstoragebackups inside the buildout directory.

blobsnapshotlocation

Directory where the blob storage snapshots will be created. Defaults to var/blobstoragesnapshots inside the buildout directory.

blobziplocation

Directory where the blob storage zipbackups will be created. Defaults to var/blobstoragezips inside the buildout directory.

compress_blob

New in version 4.0. Default is false. This is only used when the archive_blob option is true. When switched on, it will compress the archive, resulting in a .tar.gz instead of a tar file. When restoring, we always look for both compressed and normal archives. We used to always compress them, but in most cases it hardly decreases the size and it takes a long time anyway. I have seen archiving take 15 seconds, and compressing take an additional 45 seconds. The result was an archive of 5.0 GB instead of 5.1 GB.

datafs

In case the Data.fs isn’t in the default var/filestorage/Data.fs location, this option can overwrite it.

debug

In rare cases when you want to know exactly what’s going on, set debug to true to get debug level logging of the recipe itself. repozo is also run with --verbose if this option is enabled.

enable_snapshotrestore

Having a snapshotrestore script is very useful in development environments, but can be harmful in a production buildout. The script restores the latest snapshot directly to your filestorage and it used to do this without asking any questions whatsoever (this has been changed to require an explicit yes as answer). If you don’t want a snapshotrestore script, set this option to false.

enable_zipbackup

Create zipbackup and ziprestore scripts. Default: false. If backup_blobs is not on, these scripts are always disabled, because they are not useful then.

full

By default, incremental backups are made. If this option is set to true, bin/backup will always make a full backup.

incremental_blobs

New in version 4.0. Default is false. When switched on, it will use the --listed-incremental option of tar. Note: this only works with the GNU version of tar. On Mac you may need to install this with brew install gnu-tar and change your PATH according to the instructions. It will create a metadata or snapshot file so that a second call to the backup script will create a second tarball with only the differences. For some reason, all directories always end up in the second tarball, even when there are no changes; this may depend on the used file system. This option is ignored when the archive_blob option is false. This option requires the blob_timestamps option to be true, because it needs the tarball names to be stable, instead of getting rotated. If you have explicitly set blob_timestamps to false, buildout will exit with an error. Note that the latest symlink to the most recent backup is not created with incremental_blobs true. For large blobstorages it may take long to restore, so do test it out. But that is wise in all cases. Essentially, this feature seems to trade off storage space reduction with restore time.

keep

Number of full backups to keep. Defaults to 2, which means that the current and the previous full backup are kept. Older backups are removed, including their incremental backups. Set it to 0 to keep all backups.

keep_blob_days

Number of days of blob backups to keep. Defaults to 14, so two weeks. This is only used for partial (full=False) backups, so this is what gets used normally when you do a bin/backup. This option has been added in 2.2. For full backups (snapshots) we just use the keep option. Recommended is to keep these values in sync with how often you do a zeopack on the Data.fs, according to the formula keep * days_between_zeopacks = keep_blob_days. The default matches one zeopack per seven days (2*7=14). Since version 4.0, this option is ignored unless only_blobs is true. Instead, we remove the blob backups that have no matching filestorage backup.

location

Location where backups are stored. Defaults to var/backups inside the buildout directory.

locationprefix

Location of the folder where all other backup and snapshot folders will be created. Defaults to var/. Note that this does not influence where we look for a source filestorage or blobstorage.

only_blobs

Only backup the blobstorage, not the Data.fs filestorage. False by default. May be a useful option if for example you want to create one bin/filestoragebackup script and one bin/blobstoragebackup script, using only_blobs in one and backup_blobs in the other.

post_command

Command to execute after the backup has finished. One use case would be to unmount the remote file system that you mounted earlier using the pre_command. See that pre_command above for more info.

pre_command

Command to execute before starting the backup. One use case would be to mount a remote file system using NFS or sshfs and put the backup there. Any output will be printed. If you do not like that, you can always redirect output somewhere else (mycommand > /dev/null on Unix). Refer to your local Unix guru for more information. If the command fails, the backup script quits with an error. You can specify multiple commands.

quick

Call repozo with the --quick option. This option was introduced to collective.recipe.backup in version 2.19, with default value true. Due to all the checksums that the repozo default non-quick behavior does, an amount of data is read that is three to four times as much as is in the actual filestorage. With the quick option it could easily be just a few kilobytes. Theoretically the quick option is less safe, but it looks like it can only go wrong when someone edits the .dat file in the repository or removes a .deltafs file.

The quick option only influences the created bin/backup script. It has no effect on the snapshot or restore scripts.

The repozo help says about this option: “Verify via md5 checksum only the last incremental written. This significantly reduces the disk i/o at the (theoretical) cost of inconsistency. This is a probabilistic way of determining whether a full backup is necessary.”

rsync_options

Add extra options to the default rsync -a command. Default is no extra parameters. This can be useful for example when you want to restore a backup from a symlinked directory, in which case rsync_options = --no-l -k does the trick.

rsync_hard_links_on_first_copy

When using rsync, the blob files for the first backup are copied and then subsequent backups make use of hard links from this initial copy, to save time and disk space. Enable this option to also use hard links for the initial copy to further reduce disk usage. This is safe for ZODB blobs, since they are not modified in place. The blob_storage and the backup folder blobbackuplocation have to be in the same partition for hard links to be possible.

snapshotlocation

Location where snapshot backups of the filestorage are stored. Defaults to var/snapshotbackups inside the buildout directory.

use_rsync

Use rsync with hard links for backing up the blobs. Default is true. rsync is probably not available on all machines though, and I guess hard links will not work on Windows. When you set this to false, we fall back to a simple copy (shutil.copytree from Python in fact).

ziplocation

Location where zip backups of the filestorage are stored. Defaults to var/zipbackups inside the buildout directory.

An example buildout snippet using various options, would look like this:

[backup]
recipe = collective.recipe.backup
location = ${buildout:directory}/myproject
keep = 2
datafs = subfolder/myproject.fs
full = true
debug = true
snapshotlocation = snap/my
enable_snapshotrestore = true
pre_command = echo 'Can I have a backup?'
post_command =
    echo 'Thanks a lot for the backup.'
    echo 'We are done.'

Paths in directories or files can use relative (../) paths, and ~ (home dir) and $BACKUP-style environment variables are expanded.

Cron job integration

bin/backup is of course ideal to put in your cronjob instead of a whole bin/repozo .... line. But you don’t want the “INFO” level logging that you get, as you’ll get that in your mailbox. In your cronjob, just add -q or --quiet, and bin/backup will shut up unless there’s a problem. This option ignores the debug variable, if set to true in buildout.

Speaking of cron jobs? Take a look at zc.recipe.usercrontab if you want to handle cronjobs from within your buildout. For example:

[backupcronjob]
recipe = z3c.recipe.usercrontab
times = 0 12 * * *
command = ${buildout:directory}/bin/backup

Blob storage

Added in version 2.0.

We can backup the blob storage. Plone 4 uses a blob storage to store files (Binary Large OBjects) on the file system. In Plone 3 this is optional. When this is used, it should be backed up of course. You must specify the source blob_storage directory where Plone (or Zope) stores its blobs. As indicated earlier, when we do not set it specifically, we try to get the location from other parts, for example the plone.recipe.zope2instance recipe:

[buildout]
parts = instance backup

[instance]
recipe = plone.recipe.zope2instance
user = admin:admin
blob-storage = ${buildout:directory}/var/somewhere

[backup]
recipe = collective.recipe.backup

If needed, we can tell buildout that we only want to backup blobs or specifically do not want to backup the blobs. Specifying this using the backup_blobs and only_blobs options might be useful in case you want to separate this into several scripts:

[buildout]
newest = false
parts = filebackup blobbackup

[filebackup]
recipe = collective.recipe.backup
backup_blobs = false

[blobbackup]
recipe = collective.recipe.backup
blob_storage = ${buildout:directory}/var/blobstorage
only_blobs = true

With this setup bin/filebackup now only backs up the filestorage and bin/blobbackup only backs up the blobstorage.

New in version 4.0: you may want to specify blob_timestamps = true. Then we create stable directories that we do not rotate. For example: blobstorage.1972-12-25-01-02-03 instead of blobstorage.0.

rsync

By default we use rsync to create backups. We create hard links with this tool, to save disk space and still have incremental backups. This probably requires a unixy (Linux, Mac OS X) operating system. It is based on this article by Mike Rubel: http://www.mikerubel.org/computers/rsync_snapshots/

We have not tried this on Windows. Reports are welcome, but best is probably to set the use_rsync = false option in the backup part. Then we simply copy the blobstorage directory.

Alternative restore source

Added in version 2.17. Changed in version 5: only one source is supported.

You can restore from an alternative source. Use case: first make a backup of your production site, then go to the testing or staging server and restore the production data there.

In the alternative_restore_source option you can define different filestorage and blobstorage backup source directories using this syntax:

alternative_restore_source =
    storagename datafs1_backup [blobdir1_backup]

The storagename must be Data (or 1) for the standard Data.fs and optionally its blobstorage.

The result is a bin/altrestore script.

This will work for a standard buildout with a single filestorage and blobstorage:

[backup]
recipe = collective.recipe.backup
alternative_restore_source =
    Data /path/to/production/var/backups /path/to/production/var/blobstoragebackups

The above configuration uses repozo to restore the Data.fs from the /path/to/production/var/backups repository to the standard var/filestorage/Data.fs location. It copies the most recent blobstorage backup from /path/to/production/var/blobstoragebackups/ to the standard var/blobstorage location.

Calling the script with a specific date is supported just like the normal restore script:

bin/altrestore 2000-12-31-23-59

The recipe will fail if the alternative source does not match the standard filestorage and blobstorage. For example, you get an error when the alternative_restore_source is missing the Data key, when it has an extra key, when a key has no paths, when a key has an extra or missing blobstorage.

During install of the recipe, so during the bin/buildout run, it does not check if the sources exist: you might have the production backups on a different server and need to setup a remote shared directory, or you copy the data over manually.

Note that the script takes the archive_blob and use_rsync options into account. So if the alternative restore source contains a blob backup that was made with archive_blob = true, you need an altrestore script that also uses this setting.

Sponsorship

Work on collective.recipe.backup has been made possible by Ghent University, or UGent. See https://www.ugent.be. Ghent University is a top 100 university and one of the major universities in Belgium.

5.0.0 (2023-06-12)

Bug fixes:

• Final release, no changes since previous alpha. [maurits]

5.0.0a3 (2023-03-15)

Breaking changes:

• Removed additional_filestorages option. Removed support in alternative_restore_sources for multiple storages: only the standard single filestorage plus blobstorage is supported. Renamed alternative_restore_sources to alternative_restore_source, keeping the old alias for now. [maurits] (Issue #64)

• Removed gzip option. From now on, we always call repozo with the gzip option, you can no longer turn this off. [maurits] (Issue #67)

• Removed option gzip_blob. This was a backwards compatibility alias for archive_blob. You should use that now it you want to create a tar archive. Additionally use the compress_blob option if you are really sure you want to compress the archive. [maurits] (Issue #68)

• Removed option quick. From now on, we always call repozo with the quick option for normal backups, you can no longer turn this off. For full backups (snapshotbackups and zipbackups), the quick option is not used. [maurits] (Issue #69)

Bug fixes:

• Deprecate setting blob_timestamps to false. See issue 65. [maurits] (Issue #65)

5.0.0a2 (2023-02-01)

Bug fixes:

• Add missing changelog entries for release 5.0.0a1. [maurits]

5.0.0a1 (2022-11-08)

Breaking changes:

• Drop support for Python 2.7-3.7, add support for 3.10. [maurits] (Issue #62)

• No longer support the enable_fullbackup option and the fullbackup script. A full backup is automatically made by the first call of bin/backup after you have done a zeopack. If you still want such a script, look at bin/snapshotbackup script or use the full option, optionally in a second buildout section. [maurits] (Issue #66)

New features:

• Added an option to use hard links for the first backup copy [ale-rt] (Issue #57)

• Add support for Python 3.11. [maurits] (Issue #311)

Bug fixes:

• Drop code-analysis, add other QA checks: isort, black, flake8. [maurits] (Issue #63)

4.2.0 (2021-08-30)

New features:

• Changed default of blob_timestamps to true. We might remove the previous behavior (creating blobstorage.0, blobstorage.1 etcetera) completely in version 5. [maurits] (Issue #61)

Bug fixes:

• Switch the test infrastructure to GitHub Actions and tox. Also test Python 3.8 and 3.9. [ale-rt, maurits] (Issue #58)

• Fixed latest symlink when using options blob_timestamps and no_rsync. Previously it pointed to for example blobstorage.2021-01-02-03-04-05/blobstorage instead of the directory above it. [maurits] (Issue #61)

• When creating a zipbackup, do not create a blob timestamp. We always only keep one zipbackup, so there is no need for timestamps to know which filestorage backup it belongs to. [maurits] (Issue #61)

4.1.1 (2019-10-07)

Bug fixes:

• When using timestamps, use correct filestorage backup location for blob timestamp of snapshot and zip backup. [maurits] (Issue #55)

4.1.0 (2019-04-10)

New features:

• Create symlink to latest timestamped blobstorage backup. When blob_timestamps is false, blobstorage.0 is a stable filename, but with blob_timestamps true, such a stable name was missing. [maurits] (Issue #48)

• Dropped official Python 2.6 support, added Python 3.7 support. No code change, but we are no longer testing 2.6. [maurits] (Issue #49)

Bug fixes:

• Updated package versions in test buildout. Improved code quality according to flake8 and with black. [maurits] (Issue #49)

• Removed already disabled support for sitepackage_safe_scripts. [maurits] (Issue #51)

4.0.1 (2018-04-19)

Bug fixes:

• With archive_blob true, still allow restoring non archives. We prefer archives then, but if no proper archive is found, we look for non archives. [maurits] (Issue #44)

• Sort os.listdir, for improved functioning on Mac. [maurits] (Issue #45)

4.0 (2017-12-22)

• Updated readme and added sponsorship note. [maurits]

4.0b5 (2017-11-17)

• Added incremental_blobs option. This creates tarballs with only the changes compared to the previous blob backups. This option is ignored when the archive_blob option is false. [maurits]

• Improved code quality, reducing complexity. [maurits]

• Refactored the main functions to not have so much code duplication. The normal, full, snapshot and zip backups had almost the same code. This made it hard to add new options. [maurits]

4.0b4 (2017-08-18)

• Test Python 3.6 (and 2.6 and 2.7) on Travis from now on. [maurits]

• Ignore the zope2instance recipe integration tests on Python 3. They would need a compatible mailinglogger package. See issue #31. [maurits]

• Tests: use cleaner way to check the mock repozo output. Share this setup between tests. This makes the output order the same on Python 2 and 3. See issue #31. [maurits]

4.0b3 (2017-07-05)

• Added basic Python 3 support. We do not test with it yet, but you should not get NameErrors anymore. See issue #31. [maurits]

4.0b2 (2017-06-26)

• No longer create the fullbackup script by default. You can still enable it by setting enable_fullbackup to true. [maurits]

• Without explicit blob-storage option, default to var/blobstorage. Take the var option from zeoserver/client recipes into account. Fixes issue #27. [maurits]

• Do not create hidden backup .0 when blob_storage ends with a slash. Fixes issue #26. [maurits]

4.0b1 (2017-05-31)

• Make custom backup locations relative to the locationprefix option or the var directory. Until now, the locationprefix option was only used if you did not set custom locations. Custom location would be relative to the buildout directory. Now they are relative to the locationprefix option, with the var directory as default. So if you used a relative path, your backups may end up in a different path. Absolute paths are not affected: they ignore the locationprefix. [maurits]

• When log level is DEBUG, show time stamps in the log. [maurits]

• Added compress_blob option. Default is false. This is only used when the archive_blob option is true. When switched on, it will compress the archive, resulting in a .tar.gz instead of a tar file. When restoring, we always look for both compressed and normal archives. We used to always compress them, but in most cases it hardly decreases the size and it takes a long time anyway. I have seen archiving take 15 seconds, and compressing take an additional 45 seconds. The result was an archive of 5.0 GB instead of 5.1 GB. [maurits]

• Renamed gzip_blob option to archive_blob. Kept the old name as alias for backwards compatibility. This makes room for letting this create an archive without zipping it. [maurits]

• Automatically remove old blobs backups that have no corresponding filestorage backup. We compare the timestamp of the oldest filestorage backup with the timestamps of the blob backups. This can be the name, if you use blob_timestamps = true, or the modification date of the blob backup. This means that the keep_blob_days option is ignored, unless you use only_blobs = true. [maurits]

• When backing up a blobstorage, use the timestamp of the latest filestorage backup. If a blob backup with that name is already there, then there were no database changes, so we do not make a backup. This is only done when you use the new blob_timestamps = true option. [maurits]

• When restoring to a specific date, find the first blob backup at or before the specified date. Otherwise fail. The repozo script does the same. We used to pick the first blob backup after the specified date, because we assumed that the user would specify the exact date that is in the filestorage backup. Note that the timestamp of the filestorage and blobstorage backups may be a few seconds apart, unless you use the blob_timestamps == true option. In the new situation, the user should pick the date of the blob backup or slightly later. [maurits]

• Added blob_timestamps option. Default is false. By default we create blobstorage.0. The next time, we rotate this to blobstorage.1 and create a new blobstorage.0. With blob_timestamps = true, we create stable directories that we do not rotate. They get a timestamp, the same timestamp that the ZODB filestorage backup gets. For example: blobstorage.1972-12-25-01-02-03. [maurits]

• When restoring, first run checks for all filestorages and blobstorages. When one of the backups is missing, we quit with an error. This avoids restoring a filestorage and then getting into trouble due to a missing blobstorage backup. [maurits]

3.1 (2017-02-24)

• Add a locationprefix option to configure a folder where all other backup and snapshot folders will be created [erral]

• Only claim compatibility with Python 2.6 and 2.7. [maurits]

• Updated test buildout to use most recent versions. [maurits]

3.0.0 (2015-12-31)

• Refactored the init and install methods of this recipe. During the init phase we were reading the buildout configuration, but during this phase the configuration is still being build. So differences could occur, especially in the order of execution of parts. This was not good. Most code is now moved from the init to the install (and update) method. This has less possible problems. Downside: some configuration errors are caught later. [maurits]

• Read zeo-var, var, file-storage from buildout sections. Update default backup and Data.fs locations based on this. [maurits]

2.22 (2015-12-30)

• Do not accept backup_blobs false and enable_zipbackup true. The zipbackup script is useless without blobs. [maurits]

• Set default backup_blobs to true on Python 2.6 (Plone 4) and higher. Otherwise false. If no blob_storage can be found, we quit with an error. [maurits]

• Accept true, yes, on, 1, in lower, upper or mixed case as true value. Treat all other values in the buildout options as false. [maurits]

• Find plone.recipe.zope2instance recipes also when they are not completely lower case. The zope2instance recipe itself works fine when it has mixed case, so we should accept this too. [maurits]

2.21 (2015-10-06)

• When restoring, create var/filestorage if needed. Fixes #23. [maurits]

2.20 (2014-11-11)

• Add enable_fullbackup option. Default: true, so no change compared to previous version. [maurits]

• Create backup/snapshot/zipbackup directories only when needed. Running the backup script should not create the snapshot directories. [maurits]

• Add zipbackup and ziprestore scripts when enable_zipbackup = true. [maurits]

2.19 (2014-06-16)

• Call repozo with --quick when making an incremental backup. This is a lot faster. Theoretically it lead to inconsistency if someone is messing in your backup directory. You can return to the previous behavior by specifying quick = false in the backup recipe part in your buildout config. [maurits]

• check and create folders now happens after pre_commands is run [@djay]

2.18 (2014-04-29)

• Add rsync_options option. These are added to the default rsync -a command. Default is no extra parameters. This can be useful for example when you want to restore a backup from a symlinked directory, in which case rsync_options = --no-l -k does the trick. [fiterbek]

2.17 (2014-02-07)

• Add alternative_restore_sources option. This creates a bin/altrestore script that restores from an alternative backup location, specified by that option. You can use this to restore a backup of the production data to your testing or staging server. [maurits]

• When checking if the backup script will be able to create a path, remove all created directories. Until now, only the final directory was removed, and not any created parent directories. [maurits]

• Testing: split the single big doctest file into multiple files, to make the automated tests less dependent on one another, making it easier to change them and add new ones. [maurits]

• No longer test with Python 2.4, because Travis does not support it out of the box. Should still work fine. [maurits]

2.16 (2014-01-14)

• Do not create blob backup dirs when not backing up blobs. Do not create filestorage backup dirs when not backing up filestorage. Fixes https://github.com/collective/collective.recipe.backup/issues/17 [maurits]

2.15 (2013-09-16)

• Restore compatibility with Python 2.4 (Plone 3). [maurits]

2.14 (2013-09-09)

• Archive blob backups with buildout option gzip_blob. [matejc]

2.13 (2013-07-15)

• When printing that we halt the execution due to an error running repozo, actually halt the execution. [maurits]

2.12 (2013-06-28)

• Backup directories are now created when we launch backup or fullbackup or snapshotbackup scripts, no more during initialization. [bsuttor]

2.11 (2013-05-06)

• Print the names of filestorages and blobstorages that will be restored. Issue #8. [maurits]

• Added a new command-line argument : --no-prompt disables user input when restoring a backup or snapshot. Useful for shell scripts. [bouchardsyl]

• Fixed command-line behavior with many arguments and not only a date. [bouchardsyl]

2.10 (2013-03-30)

• Added fullbackup script that defaults to full=true. This could have been handled by making a new part, but it seemed like overkill to have to generate a complete new set of backup scripts, just to get one for full. [spanky]

2.9 (2013-03-06)

• Fixed possible KeyError: blob_snapshot_location. [gforcada]

2.8 (2012-11-13)

• Fixed possible KeyError: blob_backup_location. https://github.com/collective/collective.recipe.backup/issues/3 [maurits]

2.7 (2012-09-27)

• additional_filestorages improved: blob support and custom location. [mamico]

2.6 (2012-08-29)

• Added pre_command and post_command options. See the documentation. [maurits]

2.5 (2012-08-08)

• Moved code to github: https://github.com/collective/collective.recipe.backup [maurits]

2.4 (2011-12-20)

• Fixed silly indentation error that prevented old blob backups from being deleted when older than keep_blob_days days. [maurits]

2.3 (2011-10-05)

• Quit the rest of the backup or restore when a repozo call gives an error. Main use case: when restoring to a specific date repozo will quit with an error when no files can be found, so we should also not try to restore blobs then. [maurits]

• Allow restoring the blobs to the specified date as well. [maurits]

2.2 (2011-09-14)

• Refactored script generation to make a split between initialization code and script arguments. This restores compatibility with zc.buildout 1.5 for system pythons. Actually we no longer create so called ‘site package safe scripts’ but just normal scripts that work for all zc.buildout versions. [maurits]

• Added option keep_blob_days, which by default specifies that only for partial backups we keep 14 days of backups. See the documentation. [maurits]

• Remove old blob backups when doing a snapshot backup. [maurits]

2.1 (2011-09-01)

• Raise an error when the four backup location options (blobbackuplocation, blobsnapshotlocation, location and snapshotlocation) are not four distinct locations (or empty strings). [maurits]

• Fixed possible TypeError: ‘Option values must be strings’. Found by Alex Clark, thanks. [maurits]

2.0 (2011-08-26)

• Backup and restore blobs, using rsync. [maurits]

• Ask if the user is sure before doing a restore. [maurits]

1.7 (2010-12-10)

• Fix generated repozo commands to work also when recipe is configured to have a non Data.fs main db plus additional filestorages. e.g.: datafs= var/filestorage/main.fs additional = catalog [hplocher]

1.6 (2010-09-21)

• Added the option enable_snapshotrestore so that the creation of the script can be removed. Backwards compatible, if you don’t specify it the script will still be created. Rationale: you may not want this script in a production buildout where mistakenly using snapshotrestore instead of snapshotbackup could hurt. [fredvd]

1.5 (2010-09-08)

• Fix: when running buildout with a config in a separate directory (like bin/buildout -c conf/prod.cfg) the default backup directories are no longer created inside that separate directory. If you previously manually specified one of the location, snapshotlocation, or datafs parameters to work around this, you can probably remove those lines. So: slightly saner defaults. [maurits]

1.4 (2010-08-06)

• Added documentation about how to get the required bin/repozo script in your buildout if for some reason you do not have it yet (like on Plone 4 when you do not have a zeo setup). Thanks to Vincent Fretin for the extra buildout lines. [maurits]

1.3 (2009-12-08)

• Added snapshotrestore script. [Nejc Zupan]

1.2 (2009-10-26)

• The part name is now reflected in the created scripts and var/ directories. Originally bin/backup, bin/snapshotbackup, bin/restore and var/backups plus var/snapshotbackups were hardcoded. Those are still there when you name your part [backup]. With a part named [NAME], you get bin/NAME, bin/NAME-snapshot, bin/NAME-restore and var/NAMEs plus var/NAME-snapshots. Request by aclark for plone.org. [reinout]

1.1 (2009-08-21)

• Run the cleanup script (removing too old backups that we no longer want to keep) for additional file storages as well. Fixes https://bugs.launchpad.net/collective.buildout/+bug/408224 [maurits]

• Moved everything into a src/ subdirectory to ease testing on buildbot (which would grab all egss in the eggs/ dir that buildbot’s mechanism creates. [reinout]

1.0 (2009-02-06)

• Quote all paths and arguments so that it works on paths that contain spaces (specially on Windows). [sidnei]

0.9 (2008-12-05)

• Windows path compatibility fix. [Juan A. Diaz]

0.8 (2008-09-23)

• Changed the default for gzipping to True. Adding gzip = true to all our server deployment configs gets tired pretty quickly, so doing it by default is the best default. Stuff like this needs to be changed before a 1.0 release :-) [reinout]

• Backup of additional databases (if you have configured them) now takes place before the backup of the main database (same with restore). [reinout]

0.7 (2008-09-19)

• Added $BACKUP-style enviroment variable subsitution in addition to the tilde expansion offered by 0.6. [reinout, idea by Fred van Dijk]

0.6 (2008-09-19)

• Fixed the test setup so both bin/test and python setup.py test work. [reinout+maurits]

• Added support for ~ in path names. And fixed a bug at the same time that would occur if you call the backup script from a different location than your buildout directory in combination with a non-absolute backup location. [reinout]

0.5 (2008-09-18)

• Added support for additional_filestorages option, needed for for instance a split-out catalog.fs. [reinout]

• Test setup fixes. [reinout+maurits]

0.4 (2008-08-19)

• Allowed the user to make the script more quiet (say in a cronjob) by using ‘bin/backup -q’ (or –quiet). [maurits]

• Refactored initialization template so it is easier to change. [maurits]

0.3.1 (2008-07-04)

• Added ‘gzip’ option, including changes to the cleanup functionality that treats .fsz also as a full backup like .fs. [reinout]

• Fixed typo: repoze is now repozo everywhere… [reinout]

0.2 (2008-07-03)

• Extra tests and documentation change for ‘keep’: the default is to keep 2 backups instead of all backups. [reinout]

• If debug=true, then repozo is also run in –verbose mode. [reinout]

0.1 (2008-07-03)

• Added bin/restore. [reinout]

• Added snapshot backups. [reinout]

• Enabled cleaning up of older backups. [reinout]

• First working version that runs repozo and that creates a backup dir if needed. [reinout]

• Started project based on zopeskel template. [reinout]