Support library names in configuration

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3-slim
+FROM python:3.8.12-slim-buster
 
 RUN apt-get update && apt-get install gnupg curl -y && rm -rf /var/lib/apt/lists/*
 RUN curl https://linux-clients.seafile.com/seafile.asc | apt-key add - && \
@@ -11,7 +11,7 @@ WORKDIR /seafile-client
 COPY requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
-COPY seafile_client ./seafile_client/
+COPY dsc ./dsc/
 COPY start.py ./start.py
 
 RUN chmod +x /seafile-client/start.py && \

README.md

@@ -34,7 +34,7 @@ Inside container libraries' content will be put in `/data` directory, so map you
 Also you could check [docker-compose example](docker-compose.example.yml).
 
 ## Environment variables:
- - `LIBRARY_ID=<your-library-id-here>`  ID of library to sync; multiple libraries could be separated by colon `:`.
+ - `LIBRARY_ID=<your-library-id-here>`  Library to sync, ID or name; multiple libraries could be separated by colon `:`.
  - `SERVER_HOST=<server-host>`          Hostname of your seafile server, eg: `seafile.example.com`. If you're using non-standart port, specify it here, eg: `seafile.example.com:8080`.
  - `USERNAME=<username>`                Seafile account username.
  - `PASSWORD=<password>`                Seafile account password.

docker-compose.example.yml

@@ -5,7 +5,7 @@ services:
     restart: always
     image: snegov/seafile-client
     environment:
-      - LIBRARY_ID="79867cbf-2944-488d-9105-859463ecdf9e:8078e3ff-b2a0-450a-b4dd-c1ed9ef18294"
+      - LIBRARY_ID="79867cbf-2944-488d-9105-859463ecdf9e:test_library"
       - SERVER_HOST=seafile.example.com
       - USERNAME=user
       - PASSWORD=password
@@ -15,7 +15,7 @@ services:
     volumes:
       - seafile-data:/seafile-client/seafile-data
       - /home/johndow/seafile:/data
-
+    container_name: seafile-client
 
 volumes:
   seafile-data:

dsc/client.py

@@ -2,16 +2,16 @@ import logging
 import os
 import subprocess
 import time
+from typing import Optional
 from urllib.parse import urlparse
 
+from cached_property import cached_property_with_ttl
 import requests
 
-from .consts import DEFAULT_USERNAME
-from .misc import create_dir
+from dsc import consts
+from dsc.misc import create_dir
 
-
-logging.basicConfig(format="%(asctime)s %(message)s",
-                    level=logging.INFO)
+_lg = logging.getLogger(__name__)
 
 
 class SeafileClient:
@@ -36,16 +36,24 @@ class SeafileClient:
             self.__token = r.json()['token']
         return self.__token
 
-    def get_lib_name(self, lib_id: str) -> str:
-        url = f"{self.url}/api2/repos/{lib_id}"
+    @cached_property_with_ttl(ttl=60)
+    def remote_libraries(self) -> dict:
+        url = f"{self.url}/api2/repos/"
         auth_header = {"Authorization": f"Token {self.token}"}
         r = requests.get(url, headers=auth_header)
         if r.status_code != 200:
             raise RuntimeError(r.text)
-        return r.json()['name']
+        r_libs = {lib["id"]: lib["name"] for lib in r.json()}
+        return r_libs
+
+    def get_library_id(self, library) -> Optional[str]:
+        for lib_id, lib_name in self.remote_libraries.items():
+            if library in (lib_id, lib_name):
+                return lib_id
+        return None
 
     def sync_lib(self, lib_id: str, data_dir: str):
-        lib_name = self.get_lib_name(lib_id)
+        lib_name = self.remote_libraries[lib_id]
         lib_dir = os.path.join(data_dir, lib_name.replace(' ', '_'))
         create_dir(lib_dir)
         cmd = ['seaf-cli', 'sync',
@@ -55,11 +63,11 @@ class SeafileClient:
                '-u', self.user,
                '-p', self.password]
         cmd = ' '.join(cmd)
-        subprocess.run(['su', '-', DEFAULT_USERNAME, '-c', cmd])
+        subprocess.run(['su', '-', consts.DEFAULT_USERNAME, '-c', cmd])
 
     def get_status(self):
         cmd = 'seaf-cli status'
-        out = subprocess.check_output(['su', '-', DEFAULT_USERNAME, '-c', cmd])
+        out = subprocess.check_output(['su', '-', consts.DEFAULT_USERNAME, '-c', cmd])
         out = out.decode().splitlines()
 
         statuses = dict()
@@ -75,15 +83,25 @@ class SeafileClient:
     def watch_status(self):
         prev_status = dict()
         while True:
-            time.sleep(5)
+            time.sleep(consts.STATUS_POLL_PERIOD)
             cur_status = self.get_status()
             for folder, state in cur_status.items():
                 if state != prev_status.get(folder):
-                    logging.info(f"Library {folder}:\t{state}")
+                    logging.info("Library %s:\t%s", folder, state)
                 prev_status[folder] = cur_status[folder]
 
+    def get_local_libraries(self) -> set:
+        cmd = 'seaf-cli list'
+        out = subprocess.check_output(['su', '-', consts.DEFAULT_USERNAME, '-c', cmd])
+        out = out.decode().splitlines()[1:]     # first line is a header
+
+        local_libs = set()
+        for line in out:
+            lib_name, lib_id, lib_path = line.rsplit(maxsplit=3)
+            local_libs.add(lib_id)
+        return local_libs
+
 
 def start_seaf_daemon():
     cmd = 'seaf-cli start'
-    subprocess.run(['su', '-', DEFAULT_USERNAME, '-c', cmd])
-    time.sleep(5)
+    subprocess.run(['su', '-', consts.DEFAULT_USERNAME, '-c', cmd])

dsc/consts.py

@@ -1 +1,2 @@
 DEFAULT_USERNAME = "seafile"
+STATUS_POLL_PERIOD = 1

dsc/misc.py

@@ -2,7 +2,7 @@ import os
 import pwd
 import subprocess
 
-from .consts import DEFAULT_USERNAME
+from dsc.consts import DEFAULT_USERNAME
 
 
 def setup_uid(uid: int, gid: int):
@@ -19,7 +19,3 @@ def create_dir(dir_path: str):
     else:
         if not os.path.isdir(dir_path):
             raise RuntimeError(f"Data dir {dir_path} is not a directory")
-
-
-def tail_f(fpath):
-    os.system(f"tail -f {fpath}")

requirements.txt

@@ -1 +1,2 @@
-requests
+cached_property==1.5.2
+requests==2.27.1

start.py

@@ -1,15 +1,20 @@
 #!/usr/bin/env python3
 
 import argparse
+import logging
 import os
 import os.path
 import sys
 
-from seafile_client import SeafileClient, start_seaf_daemon
-from seafile_client.misc import setup_uid, create_dir
+from dsc import SeafileClient, start_seaf_daemon
+from dsc.misc import setup_uid, create_dir
+
+_lg = logging.getLogger('dsc')
 
 
 def main():
+    logging.basicConfig(format="%(asctime)s %(message)s", level=logging.INFO)
+
     parser = argparse.ArgumentParser()
     parser.add_argument("--uid", default=os.getenv("SEAFILE_UID", default=1000), type=int)
     parser.add_argument("--gid", default=os.getenv("SEAFILE_GID", default=100), type=int)
@@ -21,10 +26,23 @@ def main():
     args = parser.parse_args()
 
     setup_uid(args.uid, args.gid)
-    start_seaf_daemon()
     create_dir(args.data_dir)
+    start_seaf_daemon()
+
+    libs_to_sync = set()
+
     client = SeafileClient(args.host, args.username, args.password)
-    for lib_id in args.libs.split(sep=":"):
+    for arg_lib in args.libs.split(sep=":"):
+        lib_id = client.get_library_id(arg_lib)
+        if lib_id:
+            libs_to_sync.add(lib_id)
+        else:
+            _lg.warning("Library %s is not found on server %s", arg_lib, args.host)
+
+    # don't start to sync libraries already in sync
+    libs_to_sync -= client.get_local_libraries()
+
+    for lib_id in libs_to_sync:
         client.sync_lib(lib_id, args.data_dir)
     client.watch_status()