Merge pull request #106 from Erazor2/queuePersistence

Queue persistence
2022-01-26 00:01:16 +02:00 · 2022-01-26 00:01:16 +02:00 · 1b2831871b
parent 4a81d964dc d8136fd5e7
commit 1b2831871b
7 changed files with 1763 additions and 1721 deletions
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@ -12,11 +12,13 @@
            "windows": {
                "env": {
                    "DOWNLOAD_DIR": "${env:USERPROFILE}/Downloads",
+                    "STATE_DIR": "${env:TEMP}",
                }
            },
            "osx": {
                "env": {
                    "DOWNLOAD_DIR": "${env:HOME}/Downloads",
+                    "STATE_DIR": "${env:TMPDIR}",
                }
            },
            "console": "integratedTerminal"
--- a/2
+++ b/2
@ -25,6 +25,8 @@ COPY app ./app
 COPY --from=builder /metube/dist/metube ./ui/dist/metube

 ENV DOWNLOAD_DIR /downloads
+ENV STATE_DIR /state
 VOLUME /downloads
+VOLUME /state
 EXPOSE 8081
 CMD ["python3", "app/main.py"]
--- a/Pipfile.lock
+++ b/Pipfile.lock
@ -209,81 +209,68 @@
        },
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-                "sha256:ea8e83bf4731a2369350d7771a1f2ef8d72ad3da70a37d86b1374be8c675abd0"
+                "sha256:00e37d478c0f040639ab41a9d5280291ad2b3b5f25b9aad5baa1d5ecb578a3f6",
+                "sha256:04a38a7dc484f5e3152a69e4eab89d9340c2ad3b7c4a27d2ee256e5fb878c469",
+                "sha256:05e0e3b78b7ccc0b7c5f88596d51fdc8533adb91070b93e18cec12ca3b43deb3",
+                "sha256:0ec86fca2114e8c58fe6bfc7e04ee91568a813139dcf4334819aa44876764bcf",
+                "sha256:182962b3612c0d12748fa770f1ef0556ba8ba2c442834450e08acb31d9e6d2ed",
+                "sha256:2f2bcee2ef59597bfcb755eef2c98294094c1c9b64e9b9195cc9e71be83adb92",
+                "sha256:2f7db8d85294c1123e700097af407425fd4c9e6c58b688f391de7053c6a60317",
+                "sha256:3b7656189c259bb2b838559f0a11b533d4d18409ab6d9119c00bae436c3d3e34",
+                "sha256:5a2014598ceb19c34f14815a26536e5cc24167ea4d402f0aec2a52b18960c668",
+                "sha256:63443230247837dd03c5d4028cae5cb2e6793a9ae110e321798bee48a04ff3e9",
+                "sha256:68fb861b41a889c2efdf2795b0d46aa05d4748543bc4e0bca5886c929c7cbdef",
+                "sha256:6b3c06e6d235f475395a7e150f2e562a3e9d749fb40c6d81240596f73809346c",
+                "sha256:6d50723984ba802904618ef5bfe257a0f9644e76821d323f79f27be5adb9ece7",
+                "sha256:7fb188c9a0f69d4f7b607780641ef7aec7f02a8dad689512b17bdf04c96ce6e3",
+                "sha256:7fb9d1ab6a10cfc8c8c7e11f004e01c8a1beff5fd4118370d95110735cc23117",
+                "sha256:80eedc23c4c4d3655c6a7d315a01f0e9d460c7070c5c3af4952937b4f2c0da6f",
+                "sha256:9fa76261100b450e5aca2990ba982e5294ba383f653da041a71b4ac1cbaed1ff",
+                "sha256:b11331510cfd08ec4416f37dc8f072541d7b7240ba924c71288f7218aad36bdf",
+                "sha256:b4240991748ae0f57a0120b8d905b2d9f835fee02968fc11faec929ef6915ee6",
+                "sha256:b7b059517d84c57f25c6fd3b2e03a1b2945df2e585b96109bcd11e56f6c9e610",
+                "sha256:b975ce778ea2c65f399ab889a661e118bb68b85db47d93e0442eb1ba1f554794",
+                "sha256:c87f62de9e167031ad4179efb1fda4012bb6f7363472a61254e4426bda6bcb64",
+                "sha256:ccd301d2e71d243b0fad8c4642116c538d7d405d35b6026cf4dcee463a667a2e",
+                "sha256:dce2bfd0f285c3fcff89e4239c55f5fbe664ff435ee45abfc154aac0f222ab14",
+                "sha256:dfb8bcd45e504e1c26f0bfc404f3edd08f8c8057dfe04fbf6159adc8694ff97a",
+                "sha256:e1900d7f16a03b869be3572e7664757c14316329a4d79ecee5a0083fad8c81b0",
+                "sha256:e2ddfbcb2c4c7cb8f79db49e284280be468699c701b92d30fd1e46a786b39f5b",
+                "sha256:eb4eea028a7ad28458abf8b98ae14af2fd9baeb327a0adb6af05a488e4d9e9a1",
+                "sha256:f3a29bb51e5f9b46004b5be16bcbe4e1b2d2754cbe201e1a0b142c307bdf4c73",
+                "sha256:f553abcb3572242fed87e308a6b91a9bc5a74b801b5d093969391b0500be718b"
            ],
            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==3.12.0"
+            "version": "==3.13.0"
        },
        "python-engineio": {
            "hashes": [
@ -569,14 +556,6 @@
            "index": "pypi",
            "version": "==2.12.2"
        },
-        "setuptools": {
-            "hashes": [
-                "sha256:2404879cda71495fc4d5cbc445ed52fdaddf352b36e40be8dcc63147cb4edabe",
-                "sha256:68eb94073fc486091447fcb0501efd6560a0e5a1839ba249e5ff3c4c93f05f90"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==60.5.0"
-        },
        "toml": {
            "hashes": [
                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
--- a/README.md
+++ b/README.md
@ -10,7 +10,7 @@ Web GUI for youtube-dl (using the [yt-dlp](https://github.com/yt-dlp/yt-dlp) for
 ## Run using Docker

 ```bash
-docker run -d -p 8081:8081 -v /path/to/downloads:/downloads --user 1001:1001 alexta69/metube
+docker run -d -p 8081:8081 -v /path/to/downloads:/downloads -v /path/to/state:/state --user 1001:1001 alexta69/metube
 ```

 ## Run using docker-compose
@ -27,6 +27,7 @@ services:
      - "8081:8081"
    volumes:
      - /path/to/downloads:/downloads
+      - /path/to/state:/state  # optional, if you want download queue persistence between re-creations of the container
 ```
 ## Configuration via environment variables

@ -34,6 +35,7 @@ Certain values can be set via environment variables, using the `-e` parameter on

 * __DOWNLOAD_DIR__: path to where the downloads will be saved. Defaults to `/downloads` in the docker image, and `.` otherwise.
 * __AUDIO_DOWNLOAD_DIR__: path to where audio-only downloads will be saved, if you wish to separate them from the video downloads. Defaults to the value of `DOWNLOAD_DIR`.
+* __STATE_DIR__: path to where the queue persistence files will be saved. Defaults to `/state` in the docker image, and `.` otherwise.
 * __URL_PREFIX__: base path for the web server (for use when hosting behind a reverse proxy). Defaults to `/`.
 * __OUTPUT_TEMPLATE__: the template for the filenames of the downloaded videos, formatted according to [this spec](https://github.com/yt-dlp/yt-dlp/blob/master/README.md#output-template). Defaults to `%(title)s.%(ext)s`.
 * __YTDL_OPTIONS__: Additional options to pass to youtube-dl, in JSON format. [See available options here](https://github.com/yt-dlp/yt-dlp/blob/master/yt_dlp/YoutubeDL.py#L176). They roughly correspond to command-line options, though some do not have exact equivalents here, for example `--recode-video` has to be specified via `postprocessors`. Also note that dashes are replaced with underscores.
@ -144,5 +146,5 @@ docker build -t metube .

 ## Development notes

-* The above works on Windows and MacOS as well as Linux.
+* The above works on Windows and macOS as well as Linux.
 * If you're running the server in VSCode, your downloads will go to your user's Downloads folder (this is configured via the environment in .vscode/launch.json).
--- a/app/main.py
+++ b/app/main.py
@ -16,6 +16,7 @@ class Config:
    _DEFAULTS = {
        'DOWNLOAD_DIR': '.',
        'AUDIO_DOWNLOAD_DIR': '%%DOWNLOAD_DIR',
+        'STATE_DIR': '.',
        'URL_PREFIX': '',
        'OUTPUT_TEMPLATE': '%(title)s.%(ext)s',
        'YTDL_OPTIONS': '{}',
@ -68,6 +69,7 @@ class Notifier(DownloadQueueNotifier):
        await sio.emit('cleared', serializer.encode(id))

 dqueue = DownloadQueue(config, Notifier())
+app.on_startup.append(lambda app: dqueue.initialize())

@routes.post(config.URL_PREFIX + 'add')
 async def add(request):
--- a/app/ytdl.py
+++ b/app/ytdl.py
@ -1,6 +1,8 @@
 import os
 import yt_dlp
 from collections import OrderedDict
+import shelve
+import time
 import asyncio
 import multiprocessing
 import logging
@ -31,6 +33,7 @@ class DownloadInfo:
        self.format = format
        self.status = self.msg = self.percent = self.speed = self.eta = None
        self.filename = None
+        self.timestamp = time.time_ns()

 class Download:
    manager = None
@ -131,19 +134,65 @@ class Download:
            self.info.eta = status.get('eta')
            await self.notifier.updated(self.info)

+class PersistentQueue:
+    def __init__(self, path):
+        self.path = path
+        with shelve.open(path, 'c'):
+            pass
+        self.dict = OrderedDict()
+    
+    def load(self):
+        for k, v in self.saved_items():
+            self.dict[k] = Download(None, None, None, None, {}, v)
+
+    def exists(self, key):
+        return key in self.dict
+    
+    def get(self, key):
+        return self.dict[key]
+    
+    def items(self):
+        return self.dict.items()
+
+    def saved_items(self):
+        with shelve.open(self.path, 'r') as shelf:
+            return sorted(shelf.items(), key=lambda item: item[1].timestamp)
+
+    def put(self, value):
+        key = value.info.id
+        self.dict[key] = value
+        with shelve.open(self.path, 'w') as shelf:
+            shelf[key] = value.info
+    
+    def delete(self, key):
+        del self.dict[key]
+        with shelve.open(self.path, 'w') as shelf:
+            shelf.pop(key)
+
+    def next(self):
+        k, v = next(iter(self.dict.items()))
+        return k, v
+    
+    def empty(self):
+        return not bool(self.dict)
+
+
 class DownloadQueue:
    def __init__(self, config, notifier):
        self.config = config
        self.notifier = notifier
-        self.queue = OrderedDict()
-        self.done = OrderedDict()
-        self.initialized = False
+        self.queue = PersistentQueue(self.config.STATE_DIR + '/queue')
+        self.done = PersistentQueue(self.config.STATE_DIR + '/completed')
+        self.done.load()
+    
+    async def __import_queue(self):
+        for k, v in self.queue.saved_items():
+            await self.add(v.url, v.quality, v.format)

-    def __initialize(self):
-        if not self.initialized:
-            self.initialized = True
-            self.event = asyncio.Event()
-            asyncio.create_task(self.__download())
+    async def initialize(self):
+        self.event = asyncio.Event()
+        asyncio.create_task(self.__download())
+        asyncio.create_task(self.__import_queue())

    def __extract_info(self, url):
        return yt_dlp.YoutubeDL(params={
@ -165,10 +214,10 @@ class DownloadQueue:
                return {'status': 'error', 'msg': ', '.join(res['msg'] for res in results if res['status'] == 'error' and 'msg' in res)}
            return {'status': 'ok'}
        elif etype == 'video' or etype.startswith('url') and 'id' in entry and 'title' in entry:
-            if entry['id'] not in self.queue:
+            if not self.queue.exists(entry['id']):
                dl = DownloadInfo(entry['id'], entry['title'], entry.get('webpage_url') or entry['url'], quality, format)
                dldirectory = self.config.DOWNLOAD_DIR if (quality != 'audio' and format != 'mp3') else self.config.AUDIO_DOWNLOAD_DIR
-                self.queue[entry['id']] = Download(dldirectory, self.config.OUTPUT_TEMPLATE, quality, format, self.config.YTDL_OPTIONS, dl)
+                self.queue.put(Download(dldirectory, self.config.OUTPUT_TEMPLATE, quality, format, self.config.YTDL_OPTIONS, dl))
                self.event.set()
                await self.notifier.added(dl)
            return {'status': 'ok'}
@ -178,7 +227,6 @@ class DownloadQueue:

    async def add(self, url, quality, format, already=None):
        log.info(f'adding {url}')
-        self.__initialize()
        already = set() if already is None else already
        if url in already:
            log.info('recursion detected, skipping')
@ -193,22 +241,22 @@ class DownloadQueue:

    async def cancel(self, ids):
        for id in ids:
-            if id not in self.queue:
+            if not self.queue.exists(id):
                log.warn(f'requested cancel for non-existent download {id}')
                continue
-            if self.queue[id].started():
-                self.queue[id].cancel()
+            if self.queue.get(id).started():
+                self.queue.get(id).cancel()
            else:
-                del self.queue[id]
+                self.queue.delete(id)
                await self.notifier.canceled(id)
        return {'status': 'ok'}

    async def clear(self, ids):
        for id in ids:
-            if id not in self.done:
+            if not self.done.exists(id):
                log.warn(f'requested delete for non-existent download {id}')
                continue
-            del self.done[id]
+            self.done.delete(id)
            await self.notifier.cleared(id)
        return {'status': 'ok'}

@ -218,11 +266,11 @@ class DownloadQueue:

    async def __download(self):
        while True:
-            while not self.queue:
+            while self.queue.empty():
                log.info('waiting for item to download')
                await self.event.wait()
                self.event.clear()
-            id, entry = next(iter(self.queue.items()))
+            id, entry = self.queue.next()
            log.info(f'downloading {entry.info.title}')
            await entry.start(self.notifier)
            if entry.info.status != 'finished':
@ -233,10 +281,10 @@ class DownloadQueue:
                        pass
                entry.info.status = 'error'
            entry.close()
-            if id in self.queue:
-                del self.queue[id]
+            if self.queue.exists(id):
+                self.queue.delete(id)
                if entry.canceled:
                    await self.notifier.canceled(id)
                else:
-                    self.done[id] = entry
+                    self.done.put(entry)
                    await self.notifier.completed(entry.info)
--- a/ui/package-lock.json
+++ b/ui/package-lock.json