bump version to 0.2.0 as a lot changed, especially the CLI and config

For the README:
- Improve the format, getting rid of the textwidth-based linebreaks and
  instead putting each sentence on its own line.
- Have an example for a local check execution to have the examples be
  more diverse.
- Describe the docker compose example and have it be up-to-date.
- Better describe the local setup example.
- Reformat the section on commands and arguments, first describing the
  commands and then the arguments, as this makes more sense
  structurally.
- Also change the title of the arguments and environment variables
  section to reflect its content on commands.

For the help output mirror the command descriptions of the README and
improve the format.

Dockerfile

@@ -1,12 +1,12 @@
 FROM docker.io/library/debian:12-slim AS builder
 RUN apt-get update && \
-    apt-get install --no-install-suggests --no-install-recommends --yes pipx
+    apt-get install --no-install-suggests --no-install-recommends --yes pipx python-is-python3
 ENV PATH="/root/.local/bin:${PATH}"
 RUN pipx install poetry
 RUN pipx inject poetry poetry-plugin-bundle
 WORKDIR /src
 COPY . .
-RUN poetry bundle venv --python=/usr/bin/python3 --only=main /venv
+RUN poetry bundle venv --only=main /venv
 
 FROM gcr.io/distroless/python3-debian12
 COPY --from=builder /venv /venv

README.md

@@ -1,52 +1,69 @@
 # 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
+A Python app that can be run regularly against a Postgres Hedgedoc database to remove old notes.
-can be emailed to the author as a backup.
+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
+Hedgedoc keeps notes and revisions (versions) of those notes forever.
-of data protection reasons. With this utility, you can remove old revisions and old notes from the
+This might not be desirable, for example because of data protection reasons.
-database. `hedgedoc-expire` works by talking directly to a Postgres database; no API access to Hedgedoc is required.
+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
 
-All revisions that have been created before the specified age will be removed. If all revisions are expired, the note
+Using the `-r` or `--revisions` argument.
-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
 
-Notes that are being expired will be emailed to the account that initially created the note. This allows that user to
+Using the `-n` or `--notes` argument.
-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
+Notes that are being expired will be emailed to the account that initially created the note.
-by the mail server, the note will not be removed. Note however that this utility has no idea if the mail server has
+This allows that user to restore the note, if necessary.
-successfully delivered that mail to the intended recipient; if the mail gets lost somewhere on the way, the note cannot
+Expiring a note will also remove all existing revisions for the note.
-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`
 
-Locally from the command line:
+Locally from the command line expiring revisions and notes older than 7 days:
 
 ```shell
-poetry run python ./hedgedoc-expire.py ...
+poetry run python ./hedgedoc-expire.py expire -n 7 -r 7
 ```
 
-From Docker Compose:
+Locally from the command line only expiring revisions older than 7 days:
+
+```shell
+poetry run python ./hedgedoc-expire.py expire -r 7
+```
+
+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 check -n 7
+```
+
+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 
@@ -58,26 +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.
+`hedgedoc-expire` provides several different commands with check being the default:
-Without it, the expiry action will be taken.
+
+| 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     | 90      | remove all notes not changed in these many days                   |
+| -n     | None    | target all notes not changed in these many days                   |
-| -r     | 7       | remove all revisions created more than these many days ago        | 
+| -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.
@@ -85,19 +102,15 @@ To configure the Postgres database connection and the SMTP parameters to send ma
 For the SMTP connection, the code assumes a standard submission protocol setup with enable StartTLS and authentication,
 so you will need to configure a username and password.
 
-| Variable          | Default               | Description                         |
+| Variable            | Default                                              | Description                                                                                                                                                      |
-|-------------------|-----------------------|-------------------------------------|
+|---------------------|------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| POSTGRES_DATABASE | hedgedoc              | database to connect to              |
+| POSTGRES_CONNSTRING | postgresql://hedgedoc:geheim@localhost:5432/hedgedoc | [PostgreSQL connection string](https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING) specifying where and how to connnect to the database |
-| POSTGRES_HOSTNAME | localhost             | host of the database server         |
+| SMTP_FROM           |                                                      | sender address for the expiry mails                                                                                                                              |
-| POSTGRES_PASSWORD | geheim                | password for the database           |
+| SMTP_HOSTNAME       | localhost                                            | mail server hostname                                                                                                                                             |
-| POSTGRES_PORT     | 5432                  | port number of the database server  |
+| SMTP_PASSWORD       |                                                      | SMTP password                                                                                                                                                    |
-| POSTGRES_USERNAME | hedgedoc              | username for the database           |
+| SMTP_PORT           | 587                                                  | port to connect to                                                                                                                                               |
-| SMTP_FROM         |                       | sender address for the expiry mails |
+| SMTP_USERNAME       |                                                      | SMTP username                                                                                                                                                    |
-| SMTP_HOSTNAME     | localhost             | mail server hostname                |
+| URL                 | http://localhost:3000                                | base URL for linking to notes                                                                                                                                    |
-| SMTP_PASSWORD     |                       | SMTP password                       |
-| SMTP_PORT         | 587                   | port to connect to                  |
-| SMTP_USERNAME     |                       | SMTP username                       |
-| URL               | http://localhost:3000 | base URL for linking to notes       |
 
 ## Local Development Setup
 
@@ -110,4 +123,4 @@ You will need to create a user using the command line:
 
 ```sh
 docker compose exec -it hedgedoc bin/manage_users --add foo@example.com --pass geheim
-```
+```

docker-compose.yaml

@@ -48,7 +48,7 @@ services:
     image: hedgedoc-expire
     command: "-v -r .001 -n .001 check"
     environment:
-      - "POSTGRES_HOSTNAME=database"
+      - "POSTGRES_CONNSTRING=postgres://hedgedoc:geheim@database:5432/hedgedoc"
     depends_on:
       - database
 

hedgedoc-expire.py

@@ -1,5 +1,7 @@
 #!/bin/env python
 import argparse
+import base64
+import binascii
 import email
 import json
 import smtplib
@@ -14,7 +16,8 @@ from textwrap import dedent
 from time import sleep
 
 import humanize
-import pgsql
+import psycopg
+from psycopg.rows import dict_row
 
 
 class Config:
@@ -27,11 +30,7 @@ class Config:
         self.revision_age = timedelta(days=14)
         self.note_age = timedelta(days=95)
 
-        self.postgres_hostname = getenv('POSTGRES_HOSTNAME', 'localhost')
+        self.postgres_connection_string = getenv('POSTGRES_CONNSTRING', 'postgresql://hedgedoc:geheim@localhost:5432/hedgedoc')
-        self.postgres_username = getenv('POSTGRES_USERNAME', 'hedgedoc')
-        self.postgres_password = getenv('POSTGRES_PASSWORD', 'geheim')
-        self.postgres_database = getenv('POSTGRES_DATABASE', 'hedgedoc')
-        self.postgres_port = int(getenv('POSTGRES_PORT', '5432'))
 
         self.smtp_hostname = getenv('SMTP_HOSTNAME', 'localhost')
         self.smtp_port = int(getenv('SMTP_PORT', '587'))
@@ -64,7 +63,8 @@ class EmailSender:
             smtp_server = smtplib.SMTP(self.hostname, port=self.port)
             context = ssl.create_default_context()
             smtp_server.starttls(context=context)
-            smtp_server.login(self.username, self.password)
+            if self.username != "" and self.password != "":
+                smtp_server.login(self.username, self.password)
             smtp_server.send_message(message)
         except Exception as e:
             print(f'Unable to send mail through {self}: {e}')
@@ -94,14 +94,14 @@ class HedgedocExpire:
         profile = json.loads(row['profile'])
         return profile['emails'][0]
 
-    def notes_to_be_expired(self, db) -> list[any]:
+    def notes_to_be_expired(self, conn) -> list[any]:
         """
         Get a list of all notes to be expired.
         :return:
         """
-        notes = []
         cutoff = datetime.now(timezone.utc) - self.config.note_age
-        with db.prepare('''SELECT
+        with conn.cursor(row_factory=dict_row) as cur:
+            cur.execute('''SELECT
                             "Notes"."alias",
                             "Notes"."content",
                             "Notes"."createdAt",
@@ -113,34 +113,21 @@ class HedgedocExpire:
                             "Users"."email",
                             "Users"."profile"
                         FROM "Notes", "Users"
-                        WHERE "Notes"."updatedAt" < $1
+                        WHERE "Notes"."updatedAt" < %s
                           AND "Notes"."ownerId" = "Users"."id"
                         ORDER BY "Notes"."updatedAt"
-                        ''') as notes_older_than:
+                        ''', [cutoff])
-            for row in notes_older_than(cutoff):
+            return cur.fetchall()
-                notes.append({
-                    'alias': row.alias if row.alias is not None else row.shortid,
-                    'content': row.content,
-                    'createdAt': row.createdAt,
-                    'email': row.email,
-                    "id": row.id,
-                    'ownerId': row.ownerId,
-                    'profile': row.profile,
-                    'shortid': row.shortid,
-                    'title': row.title,
-                    'updatedAt': row.updatedAt
-                })
-        return notes
 
-    def revisions_to_be_expired(self, db) -> list[any]:
+    def revisions_to_be_expired(self, conn) -> list[any]:
         """
         Obtain a list of revisions to be expired.
-        :param db: the database connection
+        :param conn: the database connection
         :return:
         """
-        revisions = []
         cutoff = datetime.now(timezone.utc) - self.config.revision_age
-        with db.prepare('''SELECT
+        with conn.cursor(row_factory=dict_row) as cur:
+            cur.execute('''SELECT
                             "Notes"."alias",
                             "Revisions"."createdAt",
                             "Users"."email",
@@ -150,40 +137,29 @@ class HedgedocExpire:
                             "Notes"."shortid" as "shortid",
                             "Notes"."title"
                         FROM "Revisions", "Notes", "Users" 
-                        WHERE "Revisions"."createdAt" < $1 
+                        WHERE "Revisions"."createdAt" < %s
                           AND "Revisions"."noteId" = "Notes"."id"
                           AND "Notes"."ownerId" = "Users"."id"
                         ORDER BY "Notes"."createdAt", "Revisions"."createdAt"
-                    ''') as revs_older_than:
+                    ''', [cutoff])
-            for row in revs_older_than(cutoff):
+            return cur.fetchall()
-                revisions.append({
-                    'alias': row.alias,
-                    'createdAt': row.createdAt,
-                    'email': row.email,
-                    'noteId': row.noteId,
-                    'profile': row.profile,
-                    'revisionId': row.revisionId,
-                    'shortid': row.shortid,
-                    'title': row.title
-                })
-        return revisions
 
-    def check_notes_to_be_expired(self, db) -> str:
+    def check_notes_to_be_expired(self, conn) -> str:
         """
         Return a list of notes that will be expired.
-        :param db: the database connection
+        :param conn: the database connection
         :return: a multi-line text suitable for humans to read
         """
         r = ''
         cutoff = datetime.now(timezone.utc) - self.config.note_age
         r += f'Notes to be deleted not changed since {cutoff} ({humanize.naturaldelta(self.config.note_age)}):\n'
-        for note in self.notes_to_be_expired(db):
+        for note in self.notes_to_be_expired(conn):
-            age = datetime.now(timezone.utc) - datetime.fromisoformat(note['updatedAt'])
+            age = datetime.now(timezone.utc) - note['updatedAt']
             url = self.config.url + '/' + (note["alias"] if note["alias"] is not None else note["shortid"])
             r += f'    {self.email_from_email_or_profile(note)} ({humanize.naturaldelta(age)}) {url}: {note["title"]}\n'
         return r
 
-    def check_revisions_to_be_expired(self, db) -> str:
+    def check_revisions_to_be_expired(self, conn) -> str:
         """
         Return a list of revisions that will be expired.
         :return: a multi-line text suitable for humans to read
@@ -192,8 +168,8 @@ class HedgedocExpire:
         cutoff = datetime.now(timezone.utc) - self.config.revision_age
         r += f'Revisions to be deleted created before {cutoff} ({humanize.naturaldelta(self.config.revision_age)}):\n'
         notes = {}
-        for row in self.revisions_to_be_expired(db):
+        for row in self.revisions_to_be_expired(conn):
-            row['age'] = datetime.now(timezone.utc) - datetime.fromisoformat(row['createdAt'])
+            row['age'] = datetime.now(timezone.utc) - row['createdAt']
             if row['noteId'] not in notes:
                 notes[row['noteId']] = []
             notes[row['noteId']].append(row)
@@ -206,19 +182,20 @@ class HedgedocExpire:
                 r += f'        {humanize.naturaldelta(rev["age"])}: {rev["revisionId"]}\n'
         return r
 
-    def expire_old_notes(self, db) -> None:
+    def expire_old_notes(self, conn) -> None:
         """
         Email old notes to their owners, then delete them.
-        :param db: the database connection
+        :param conn: the database connection
         :return:
         """
-        with db.prepare('DELETE FROM "Notes" WHERE "id" = $1') as delete_statement:
+        with conn.cursor() as cur:
-            for note in self.notes_to_be_expired(db):
+            for note in self.notes_to_be_expired(conn):
                 try:
-                    note_age = datetime.now(timezone.utc) - datetime.fromisoformat(note['updatedAt'])
+                    note_age = datetime.now(timezone.utc) - note['updatedAt']
                     msg = MIMEMultipart()
                     msg['From'] = self.email_sender.mail_from
                     msg['To'] = self.email_from_email_or_profile(note)
+                    msg['Date'] = email.utils.formatdate()
                     msg['Subject'] = f'Your HedgeDoc Note "{note["title"]}" has expired'
                     msg.attach(MIMEText(dedent(f'''\
                         You created the note titled "{note["title"]}" on {note["createdAt"]}.
@@ -239,39 +216,92 @@ class HedgedocExpire:
                     self.email_sender.send(msg)
 
                     # email backup of the note sent, now we can delete it
-                    delete_statement(note["id"])
+                    cur.execute('DELETE FROM "Notes" WHERE "id" = %s', [note["id"]])
+                    conn.commit()
 
                     if self.config.verbose:
                         url = self.config.url + '/' + (note["alias"] if note["alias"] is not None else note["shortid"])
                         print(f'Note "{note["title"]}" ({url}) emailed to {msg["To"]}')
+
+                    try:
+                        with conn.cursor(row_factory=dict_row) as user_history_cur:
+                            # Calculate the urlid of the note from its id.
+                            # See:
+                            # - https://github.com/hedgedoc/hedgedoc/blob/380587b7fd65bc1eb71eef51a3aab324f9877650/lib/models/note.js#L167-L172
+                            # - https://git.cccv.de/infra/ansible/roles/hedgedoc/-/blob/d69cef4bf6c7fe4e67570363659e4c20b0e102af/files/hedgedoc-util.py#L84
+                            urlid = base64.urlsafe_b64encode(binascii.unhexlify(f"{note['id']}".replace('-', ''))).decode().replace('=', '')
+
+                            # Get all users with note in history.
+                            user_history_cur.execute('''SELECT
+                                                            "Users"."id",
+                                                            "Users"."history",
+                                                            "Users"."email",
+                                                            "Users"."profile"
+                                                        FROM "Users"
+                                                        WHERE jsonb_path_exists("Users"."history"::jsonb, '$[*] ? (@.id == $urlid)', jsonb_build_object('urlid', %s::text))
+                                                        ''', [urlid])
+                            users_with_note = user_history_cur.fetchall()
+
+                            for user in users_with_note:
+                                history = json.loads(user["history"])
+                                history_without_note = json.dumps([ entry for entry in history if entry["id"] != urlid ])
+                                user_history_cur.execute('''UPDATE "Users"
+                                                            SET "history" = %s
+                                                            WHERE "id" = %s
+                                                         ''', [history_without_note, user["id"]])
+                            
+                            conn.commit()
+                            if self.config.verbose:
+                                for user in users_with_note:
+                                    print(f'    deleted history entry for {self.email_from_email_or_profile(user)}')
+                    except Exception as e:
+                        conn.rollback()
+                        print(f'An error occured while trying to delete {note["id"]} from the users history: {e}', file=sys.stderr)
                 except Exception as e:
                     print(f'Unable to send email to {self.email_from_email_or_profile(note)}: {e}', file=sys.stderr)
 
-    def expire_old_revisions(self, db) -> None:
+    def expire_old_revisions(self, conn) -> None:
         """
         Removes all revision on all notes that have been modified earlier than age.
-        :param db: the database connection
+        :param conn: the database connection
         :return:
         """
         cutoff = datetime.now(timezone.utc) - self.config.revision_age
-        with db.prepare('DELETE FROM "Revisions" WHERE "createdAt" < $1 RETURNING id') as delete:
+        with conn.cursor() as cur:
-            rows = list(delete(cutoff))
+            rows = list(cur.execute('DELETE FROM "Revisions" WHERE "createdAt" < %s RETURNING id', [cutoff]))
             if self.config.verbose:
                 print(f'Deleted {len(rows)} old revisions')
+            conn.commit()
 
     def cmd_check(self) -> None:
-        with pgsql.Connection((self.config.postgres_hostname, self.config.postgres_port),
+        with psycopg.connect(self.config.postgres_connection_string) as conn:
-                              self.config.postgres_username, self.config.postgres_password) as db:
+            if self.config.revision_age is not None:
-            print(self.check_revisions_to_be_expired(db) +
+                print(self.check_revisions_to_be_expired(conn))
-                  self.check_notes_to_be_expired(db))
+            elif self.config.verbose:
+                print("Revisions weren't included in the check, not checking.\n")
+                
+            if self.config.note_age is not None:
+                print(self.check_notes_to_be_expired(conn))
+            elif self.config.verbose:
+                print("Notes weren't included in the check, not checking.\n")
 
     def cmd_emailcheck(self) -> None:
-        with pgsql.Connection((self.config.postgres_hostname, self.config.postgres_port),
+        with psycopg.connect(self.config.postgres_connection_string) as conn:
-                              self.config.postgres_username, self.config.postgres_password) as db:
+            report = ''
-            report = self.check_revisions_to_be_expired(db) + self.check_notes_to_be_expired(db)
+
+            if self.config.revision_age is not None:
+                report += self.check_revisions_to_be_expired(conn)
+            else:
+                report += "Revisions weren't included in the check.\n"
+
+            if self.config.note_age is not None:
+                report += self.check_notes_to_be_expired(conn)
+            else:
+                report += "Notes weren't included in the check.\n"
         msg = MIMEMultipart()
         msg['From'] = self.email_sender.mail_from
         msg['To'] = self.email_sender.mail_from
+        msg['Date'] = email.utils.formatdate()
         msg['Subject'] = f'Hedgedoc Expire: Report'
         msg.attach(MIMEText(dedent(f'''\
             This report shows which notes and revisions would be deleted if expire would be run now.
@@ -283,10 +313,16 @@ class HedgedocExpire:
         self.email_sender.send(msg)
 
     def cmd_expire(self) -> None:
-        with pgsql.Connection((self.config.postgres_hostname, self.config.postgres_port),
+        with psycopg.connect(self.config.postgres_connection_string) as conn:
-                              self.config.postgres_username, self.config.postgres_password) as db:
+            if self.config.revision_age is not None:
-            self.expire_old_revisions(db)
+                self.expire_old_revisions(conn)
-            self.expire_old_notes(db)
+            elif self.config.verbose:
+                print("Revisions weren't included in the expire action, not expiring.\n")
+
+            if self.config.note_age is not None:
+                self.expire_old_notes(conn)
+            elif self.config.verbose:
+                print("Notes weren't included in the expire action, not expiring.\n")
 
 
 def main():
@@ -300,18 +336,18 @@ def main():
         Revisions of notes that have been created before the specified time will be deleted.
         '''),
         epilog=dedent('''\
-        command is one of:
+        command is one of, which check being the default:
-         - check: print a list of revisions and notes to be expired
+         - check:      Print a list of revisions and notes that would be expired, based on the given arguments -n and -r.
-         - cron: run expire every 24 hours
+         - cron:       Run `expire` at 2 am local time each day. Will run until killed.
-         - emailcheck: send am email from the configured sender to themselves with the the check report
+         - emailcheck: Send an email from the configured sender to themselves with the the check report.
-         - expire: expire old revisions and untouched notes
+         - expire:     Expire old revisions and notes, based on the given arguments -n and -r.
         
         See https://git.hamburg.ccc.de/CCCHH/hedgedoc-expire
         ''')
     )
-    parser.add_argument('-n', '--notes', metavar='DAYS', type=float, default=95,
+    parser.add_argument('-n', '--notes', metavar='DAYS', type=float,
                         help='remove all notes not changed in these many days')
-    parser.add_argument('-r', '--revisions', metavar='DAYS', type=float, default=14,
+    parser.add_argument('-r', '--revisions', metavar='DAYS', type=float,
                         help='remove all revisions created more than these many days ago')
     parser.add_argument('command', choices=['check', 'cron', 'emailcheck', 'expire'], default='check', nargs='?',
                         help='action to perform')
@@ -320,8 +356,8 @@ def main():
     args = parser.parse_args()
 
     config = Config()
-    config.note_age = timedelta(days=args.notes)
+    config.note_age = timedelta(days=args.notes) if args.notes is not None else None
-    config.revision_age = timedelta(days=args.revisions)
+    config.revision_age = timedelta(days=args.revisions) if args.revisions is not None else None
     config.verbose = args.verbose
     mail = EmailSender(config.smtp_hostname, config.smtp_port, config.smtp_username, config.smtp_password,
                        config.smtp_from)

poetry.lock

@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.4 and should not be changed by hand.
 
 [[package]]
 name = "humanize"
@@ -15,16 +15,125 @@ files = [
 tests = ["freezegun", "pytest", "pytest-cov"]
 
 [[package]]
-name = "pgsql"
+name = "psycopg"
-version = "2.2"
+version = "3.2.3"
-description = "PostgreSQL client library for Python 3"
+description = "PostgreSQL database adapter for Python"
 optional = false
-python-versions = ">=3.11"
+python-versions = ">=3.8"
 files = [
-    {file = "pgsql-2.2-py3-none-any.whl", hash = "sha256:12d3360645089d2ee6ab04dd8b9a03aeb7092e3459323f9553252bf4b8bdd2ed"},
+    {file = "psycopg-3.2.3-py3-none-any.whl", hash = "sha256:644d3973fe26908c73d4be746074f6e5224b03c1101d302d9a53bf565ad64907"},
+    {file = "psycopg-3.2.3.tar.gz", hash = "sha256:a5764f67c27bec8bfac85764d23c534af2c27b893550377e37ce59c12aac47a2"},
+]
+
+[package.dependencies]
+psycopg-binary = {version = "3.2.3", optional = true, markers = "implementation_name != \"pypy\" and extra == \"binary\""}
+typing-extensions = {version = ">=4.6", markers = "python_version < \"3.13\""}
+tzdata = {version = "*", markers = "sys_platform == \"win32\""}
+
+[package.extras]
+binary = ["psycopg-binary (==3.2.3)"]
+c = ["psycopg-c (==3.2.3)"]
+dev = ["ast-comments (>=1.1.2)", "black (>=24.1.0)", "codespell (>=2.2)", "dnspython (>=2.1)", "flake8 (>=4.0)", "mypy (>=1.11)", "types-setuptools (>=57.4)", "wheel (>=0.37)"]
+docs = ["Sphinx (>=5.0)", "furo (==2022.6.21)", "sphinx-autobuild (>=2021.3.14)", "sphinx-autodoc-typehints (>=1.12)"]
+pool = ["psycopg-pool"]
+test = ["anyio (>=4.0)", "mypy (>=1.11)", "pproxy (>=2.7)", "pytest (>=6.2.5)", "pytest-cov (>=3.0)", "pytest-randomly (>=3.5)"]
+
+[[package]]
+name = "psycopg-binary"
+version = "3.2.3"
+description = "PostgreSQL database adapter for Python -- C optimisation distribution"
+optional = false
+python-versions = ">=3.8"
+files = [
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+]
+
+[[package]]
+name = "typing-extensions"
+version = "4.12.2"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "typing_extensions-4.12.2-py3-none-any.whl", hash = "sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d"},
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+]
+
+[[package]]
+name = "tzdata"
+version = "2024.2"
+description = "Provider of IANA time zone data"
+optional = false
+python-versions = ">=2"
+files = [
+    {file = "tzdata-2024.2-py2.py3-none-any.whl", hash = "sha256:a48093786cdcde33cad18c2555e8532f34422074448fbc874186f0abd79565cd"},
+    {file = "tzdata-2024.2.tar.gz", hash = "sha256:7d85cc416e9382e69095b7bdf4afd9e3880418a2413feec7069d533d6b4e31cc"},
 ]
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.12"
+python-versions = "^3.11"
-content-hash = "0b022231d09549e564a7cec69a9169cbd5a27e550b5a10a8b57ef2bbe251b6fe"
+content-hash = "6ef91abe2e2acfa0b7355dca99bfd6595e18bf90609c323f1857f13a1df73aaf"

pyproject.toml

@@ -1,14 +1,14 @@
 [tool.poetry]
 name = "hedgedoc-expire"
-version = "0.1.0"
+version = "0.2.0"
 description = "Remove old Hedgedoc notes"
 authors = ["Stefan Bethke <stb@lassitu.de>"]
 readme = "README.md"
 
 [tool.poetry.dependencies]
-python = "^3.12"
+python = "^3.11"
-pgsql = "^2.2"
 humanize = "^4.9.0"
+psycopg = {extras = ["binary"], version = "^3.2.3"}
 
 
 [build-system]