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README.md
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# hedgedoc-expire - remove old notes
A Python app that can be run regularly against a Postgres Hedgedoc database to remove old notes. Notes that are expired
can be emailed to the author as a backup.
A Python app that can be run regularly against a Postgres Hedgedoc database to remove old notes.
Notes that are expired can be emailed to the author as a backup.
## Expiring old notes and revisions
Hedgedoc keeps notes and revisions (versions) of those notes forever. This might not be desirable, for example because
of data protection reasons. With this utility, you can remove old revisions and old notes from the
database. `hedgedoc-expire` works by talking directly to a Postgres database; no API access to Hedgedoc is required.
Hedgedoc keeps notes and revisions (versions) of those notes forever.
This might not be desirable, for example because of data protection reasons.
With this utility, you can remove old revisions and old notes from the database.
`hedgedoc-expire` works by talking directly to a Postgres database; no API access to Hedgedoc is required.
Currently, it only works with Postgres.
### Expiring old revisions
Using the `-r` or `--revisions` argument.
All revisions that have been created before the specified age will be removed. If all revisions are expired, the note
remains available, it just won't have any revisions to revert to. Once you continue editing it, new revisions will be
added.
All revisions that have been created before the specified age will be removed.
If all revisions are expired, the note remains available, it just won't have any revisions to revert to.
Once you continue editing it, new revisions will be added.
### Expiring old notes
Using the `-n` or `--notes` argument.
Notes that are being expired will be emailed to the account that initially created the note. This allows that user to
restore the note, if necessary. Expiring a note will also remove all existing revisions for the note.
Notes that are being expired will be emailed to the account that initially created the note.
This allows that user to restore the note, if necessary.
Expiring a note will also remove all existing revisions for the note.
You will need to configure your environment for `hedgedoc-expire` to be able to send mail. If the mail is not accepted
by the mail server, the note will not be removed. Note however that this utility has no idea if the mail server has
successfully delivered that mail to the intended recipient; if the mail gets lost somewhere on the way, the note cannot
be recovered.
You will need to configure your environment for `hedgedoc-expire` to be able to send mail.
If the mail is not accepted by the mail server, the note will not be removed.
Note however that this utility has no idea if the mail server has successfully delivered that mail to the intended recipient; if the mail gets lost somewhere on the way, the note cannot be recovered.
## Running `hedgedoc-expire.py`
@ -44,25 +45,25 @@ Locally from the command line only expiring revisions older than 7 days:
poetry run python ./hedgedoc-expire.py expire -r 7
```
Locally from the command line only expiring notes older than 7 days:
Locally from the command line checking which notes older than 7 days would be expired (and only checking notes):
```shell
poetry run python ./hedgedoc-expire.py expire -n 7
poetry run python ./hedgedoc-expire.py check -n 7
```
From Docker Compose:
From Docker Compose checking which notes older than 95 and which revisions older than 14 days would be expired:
```yaml
hedgedoc-expire:
image: hedgedoc-expire
command: "-c -r 14 -n 95"
command: "check -r 14 -n 95"
environment:
- "POSTGRES_HOSTNAME=database"
depends_on:
- database
```
Running against a local setup with one note, with times set to a fraction of a day:
Running a check against a local setup with one note, with times set to a fraction of a day:
```shell
$ poetry run python ./hedgedoc-expire.py -n .001 -r .001
@ -74,26 +75,26 @@ Notes to be deleted not changed since 2024-05-20 09:02:46.416294+00:00 (a minute
foo@example.com (a day) http://localhost:3000/foo: hedgedoc-expire - remove old notes
```
## Arguments and Environment Variables
## Commands, Arguments and Environment Variables
There are two main modes to run `hedgedoc-require`: check and expire. With `-c`, a report is generated on standard out.
Without it, the expiry action will be taken.
`hedgedoc-expire` provides several different commands with check being the default:
| Command | Description |
|------------|--------------------------------------------------------------------------------------------------------|
| check | Print a list of revisions and notes that would be expired, based on the given arguments `-n` and `-r`. |
| cron | Run `expire` at 2 am local time each day. Will run until killed. |
| emailcheck | Send an email from the configured sender to themselves with the the check report. |
| expire | Expire old revisions and notes, based on the given arguments `-n` and `-r`. |
Additionally the following arguments are available.
`-n` and `-r` are crucial in determining whether or not and how many notes/revisions should be targeted.
| Option | Default | Description |
|--------|---------|-------------------------------------------------------------------|
| -n | None | remove all notes not changed in these many days |
| -r | None | remove all revisions created more than these many days ago |
| -n | None | target all notes not changed in these many days |
| -r | None | target all revisions created more than these many days ago |
| -v | false | Print info on current action during `cron` and `expire` commandds |
Command is one of:
| Command | Description |
|------------|------------------------------------------------------------------------------------------------------------|
| check | Print a list of revisions and notes that would be expired, based on the given parameters for `-n` and `-r` |
| cron | Run `expire` at 2 am local time each day. Will run until killed. |
| emailcheck | Send an email from the configured sender to themselves with the the check report. |
| expire | Expire old revisions and notes. |
### Environment variables
To configure the Postgres database connection and the SMTP parameters to send mail, set these variables.

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hedgedoc-expire.py
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@ -336,11 +336,11 @@ def main():
Revisions of notes that have been created before the specified time will be deleted.
'''),
epilog=dedent('''\
command is one of:
- check: print a list of revisions and notes to be expired
- cron: run expire every 24 hours
- emailcheck: send am email from the configured sender to themselves with the the check report
- expire: expire old revisions and untouched notes
command is one of, which check being the default:
- check: Print a list of revisions and notes that would be expired, based on the given arguments -n and -r.
- cron: Run `expire` at 2 am local time each day. Will run until killed.
- emailcheck: Send an email from the configured sender to themselves with the the check report.
- expire: Expire old revisions and notes, based on the given arguments -n and -r.
See https://git.hamburg.ccc.de/CCCHH/hedgedoc-expire
''')