ergosteurandClaude Opus 5
68568ef855
A dry-run publish against the real archive caught gdl-sync.config.json being created in the archive root: it was written into the staging directory, and staging is rsynced wholesale. It now lives as a sibling of staging instead, with rsync excludes as a second line of defence. The dry run is otherwise clean -- 322 files added, 0 deleted, no new directories -- and confirms the property that matters most: of 74 new media files, zero duplicate media already held under a different name. The JD2 and gallery-dl naming really do converge. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
562 lines
22 KiB
Python
Executable File
562 lines
22 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Fetch Instagram profiles into the archive layout using gallery-dl.
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The CLI replacement for the JDownloader2 workflow. See docs/gallery-dl.md for
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the measurements behind every choice here — especially the safety model, which
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is the reason this script exists in this shape rather than a simpler one.
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STATUS: exercised end-to-end against `withaseul` (posts, reels, stories,
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highlights) publishing to a scratch directory. It has never written to the live
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archive.
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The fetch host needs no copy of the archive. It stages locally and rsyncs
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afterwards; what it already holds is learned from a *file listing* alone
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(`--index`), which the viewer's own API serves.
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Usage:
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./scripts/gdl-sync.py --index https://instaarchive.ergosteur.com \\
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--staging /var/tmp/gdl --publish user@host:/path/to/archives \\
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--profile 0ct0ber19 --dry-run
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# ...then swap --dry-run for --execute. --index also accepts a local path.
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Run it from the host whose public IP matches the browser the cookie came from;
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using the cookie from elsewhere is what session-hijack detection looks for.
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"""
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from __future__ import annotations
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import argparse
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import json
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import os
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import re
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import shutil
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import subprocess
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import sys
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from dataclasses import dataclass, field
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from pathlib import Path
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# --------------------------------------------------------------------------
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# Archive layout
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# --------------------------------------------------------------------------
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# Mirrors src/lib/archive-grouping.ts. Instagram usernames cannot contain
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# spaces, which is what makes the username separable from a highlight title.
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RE_HIGHLIGHT = re.compile(r"^story highlights - ([^ ]+) - (.+)$")
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RE_STORIES = re.compile(r"^story - ([^ ]+)$")
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RE_REELS = re.compile(r"^([^ ]+) - reels$")
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DATE_FMT = "{date:Olocal/%Y-%m-%d}"
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"""Local-time date. JD2 stamped US Eastern, NOT UTC (0/212 mismatches vs 19 for
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UTC). `Olocal` is DST-aware per timestamp. The trailing separator must be
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omitted or it lands in the strftime format and sanitises to an underscore."""
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POST_STEM = DATE_FMT + "_{username} - {post_shortcode}"
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ITEM_STEM = DATE_FMT + "_{username} - {shortcode}"
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@dataclass
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class Source:
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"""One gallery-dl invocation: a URL fetched into a specific directory."""
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kind: str # posts | reels | stories | highlights
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url: str
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directory: str # relative to the archives root
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subcategory: str # gallery-dl config key
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title: str | None = None # highlight title, when known
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@dataclass
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class Profile:
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user: str
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existing: dict[str, str] = field(default_factory=dict) # kind -> dirname
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def sources(self, include_stories: bool) -> list[Source]:
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u = self.user
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base = f"https://www.instagram.com/{u}"
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out = [
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Source("posts", f"{base}/posts/", u, "posts"),
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Source("reels", f"{base}/reels/", f"{u} - reels", "reels"),
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]
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if include_stories:
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# Stories expire after 24h, so these can only ever be captured
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# live. There is no backfill and no re-fetch.
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out.append(Source(
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"stories", f"https://www.instagram.com/stories/{u}/",
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f"story - {u}", "stories"))
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# Highlight directories embed the title, which gallery-dl only
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# learns mid-extraction -- so this one source fans out into many
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# directories and is handled with a directory format string.
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out.append(Source(
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"highlights", f"{base}/highlights", "", "highlights"))
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return out
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def scan_archives(root: Path) -> dict[str, Profile]:
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"""Group existing directories into profiles, as the server does."""
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profiles: dict[str, Profile] = {}
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def get(user: str) -> Profile:
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return profiles.setdefault(user, Profile(user))
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for entry in sorted(os.listdir(root)):
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if not (root / entry).is_dir() or entry.startswith("."):
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continue
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if m := RE_HIGHLIGHT.match(entry):
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get(m.group(1)).existing.setdefault("highlights", entry)
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elif m := RE_STORIES.match(entry):
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get(m.group(1)).existing["stories"] = entry
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elif m := RE_REELS.match(entry):
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get(m.group(1)).existing["reels"] = entry
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else:
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get(entry).existing["posts"] = entry
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return profiles
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class ArchiveIndex:
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"""
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What the archive already holds, as filenames only.
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Deliberately never reads file *contents*, so the fetch host does not need a
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copy of the archive — it can stage locally and rsync afterwards. Backed
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either by a local directory or by the viewer's own API, which already
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serves exactly this listing and is the cheaper option when the archive
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lives on network storage (a full walk there took ~52s).
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"""
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def __init__(self, source: str):
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self.remote = source.startswith(("http://", "https://"))
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self.source = source.rstrip("/") if self.remote else None
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self.root = None if self.remote else Path(source)
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if self.root and not self.root.is_dir():
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raise SystemExit(f"archive index not found: {source}")
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self._cache: dict[str, list[str]] = {}
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def _get(self, path: str):
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from urllib.request import urlopen
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with urlopen(f"{self.source}{path}", timeout=60) as resp:
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return json.load(resp)
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def profiles(self) -> set[str]:
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if self.remote:
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return {a["name"] for a in self._get("/api/archives")}
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return set(scan_archives(self.root))
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def listing(self, user: str) -> list[str]:
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"""Every filename belonging to a profile, across all its sidecars."""
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if user in self._cache:
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return self._cache[user]
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names: list[str] = []
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if self.remote:
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try:
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data = self._get(f"/api/archives/{user}/files")
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except Exception:
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data = []
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files = data if isinstance(data, list) else data.get("files", [])
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names = [f["path"] for f in files]
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else:
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prof = scan_archives(self.root).get(user)
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for dirname in (prof.existing.values() if prof else ()):
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d = self.root / dirname
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if d.is_dir():
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names += [f"{dirname}/{n}" for n in os.listdir(d)]
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self._cache[user] = names
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return names
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# --------------------------------------------------------------------------
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# gallery-dl configuration
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# --------------------------------------------------------------------------
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def build_config(rate: str, sleep_request: list[float],
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sleep: list[float]) -> dict:
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"""
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The config is generated rather than checked in so the safety-critical
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options cannot drift out of sync with the docs.
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`api: rest` is the single most important line in this file. The graphql
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backend issues one request PER POST for every video and carousel, which is
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the pattern that got this account banned once already.
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"""
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caption_pp = {
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"name": "metadata",
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"event": "post",
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"mode": "custom",
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"content-format": "{description}",
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"extension": "txt",
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# JD2 wrote no .txt when the caption was empty; "empty": false (the
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# default) reproduces that.
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}
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meta_pp = {
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"name": "metadata",
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"event": "post",
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"mode": "json",
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# `include`, NOT `fields` -- `fields` applies to mode:custom and
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# silently does nothing here, dumping audio_user blobs that contain
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# unrelated users' profile picture URLs.
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"include": [
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"post_shortcode", "post_id", "type", "date", "post_date",
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"username", "fullname", "owner_id", "description", "count",
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"likes", "post_url", "sidecar_shortcode",
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],
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}
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def post_like(stem: str) -> dict:
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"""Naming for surfaces whose unit is a post (posts, reels)."""
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return {
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# `sidecar_shortcode` is set only for carousels, so it is the
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# carousel discriminator. First matching condition wins.
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"filename": {
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"sidecar_shortcode and count >= 10":
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stem + " - {num:02}.{extension}",
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"sidecar_shortcode":
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stem + " - {num}.{extension}",
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"":
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stem + ".{extension}",
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},
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"postprocessors": [
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{**caption_pp, "filename": stem + ".txt"},
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{**meta_pp, "filename": stem + ".json"},
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],
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}
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def item_like(stem: str) -> dict:
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"""
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Naming for surfaces whose unit is an item inside a reel (stories,
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highlights). `{shortcode}` is per item; `{post_shortcode}` is the
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reel's id and is shared by every item in it.
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"""
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return {
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"filename": stem + ".{extension}",
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"postprocessors": [{**meta_pp, "filename": stem + ".json"}],
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}
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return {
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"extractor": {
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"base-directory": ".",
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"instagram": {
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"api": "rest", # never "graphql" -- see docstring
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"sleep-request": sleep_request,
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"sleep": sleep,
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# The CDN does rate-limit: a first run at 3M/1-3s drew
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# '429 Too Many Requests' from scontent-*.cdninstagram.com and
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# lost two videos. Back off hard rather than retry fast.
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"sleep-429": 120.0,
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"retries": 8,
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"videos": True,
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"include": "", # never "all"; sources are explicit
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# Directory is forced per-invocation with -D, because a reels
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# tab returns collab reels owned by OTHER accounts and
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# {username} would scatter them into the wrong profile.
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"directory": [],
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"posts": post_like(POST_STEM),
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"reels": post_like(POST_STEM),
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"stories": item_like(ITEM_STEM),
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"highlights": {
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**item_like(ITEM_STEM),
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# The only surface that must derive its own directory,
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# since the title is not known until extraction.
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"directory": ["story highlights - {username} - {highlight_title}"],
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},
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},
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},
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# `retries` here is the CDN-side counterpart to sleep-429 above.
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"downloader": {"http": {"rate": rate, "retries": 8}},
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"output": {"mode": "null"},
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}
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# --------------------------------------------------------------------------
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# Planning and execution
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# --------------------------------------------------------------------------
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def gdl_command(src: Source, staging: Path, config: Path, cookies: str,
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archive_db: Path | None) -> list[str]:
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cmd = [
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"gallery-dl",
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"--config", str(config),
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"--cookies-from-browser", cookies,
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]
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if archive_db:
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# Without a seeded skip-archive, staging is empty and every file is
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# re-downloaded; see seed_archive_db.
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cmd += ["--download-archive", str(archive_db)]
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# Forced destination -- never `{username}` -- because a reels tab returns
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# collab reels owned by other accounts, which would otherwise be filed
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# under the wrong profile. Highlights are the exception: their directory
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# embeds a title only known mid-extraction, so the config formats it.
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dest = staging if src.subcategory == "highlights" else staging / src.directory
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cmd += ["--destination", str(dest)]
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cmd.append(src.url)
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return cmd
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# gallery-dl keys its skip-archive on `archive_prefix + archive_fmt`, which for
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# this extractor is the literal "instagram" followed by the per-media numeric
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# pk (`instagram.py:25`, `job.py:713-719`). Verified against a real run: a
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# 3-image carousel produced 3 rows, one per item.
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ARCHIVE_KEY = "instagram{}".format
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ARCHIVE_SCHEMA = "CREATE TABLE IF NOT EXISTS archive (entry TEXT PRIMARY KEY)"
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RE_ARCHIVED = re.compile(
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r"^(\d{4}-\d{2}-\d{2})_(.+?) - ([A-Za-z0-9_-]+?)(?: - (\d+))?\.(\w+)$")
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NON_MEDIA = {"txt", "json"}
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def index_existing(listing: list[str]) -> set[tuple[str, int]]:
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"""
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Reduce a flat list of filenames to the (shortcode, index) pairs already
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held. Only names matter — never the bytes — which is what lets the sync run
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on a host that has no copy of the archive.
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"""
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have: set[tuple[str, int]] = set()
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for name in listing:
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m = RE_ARCHIVED.match(name.rsplit("/", 1)[-1])
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if not m or m.group(5).lower() in NON_MEDIA:
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continue
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# An absent index means a single-media post, which is index 1 — the
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# same normalisation the viewer's EXPORT_RE applies.
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have.add((m.group(3), int(m.group(4) or 1)))
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return have
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def live_key(item: dict, kind: str) -> tuple[str, int]:
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"""
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The (shortcode, index) a live item *would* be filed under, mirroring the
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filename template exactly.
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The two surfaces disagree about which shortcode identifies a file, and
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getting this wrong silently seeds almost nothing:
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posts/reels filed under {post_shortcode} — for a carousel, each
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child item ALSO has its own `shortcode`, which is not
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what appears in the filename.
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stories/highlights filed under the per-item {shortcode}, because
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`post_shortcode` there is the containing reel's id and
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is shared by every item in it.
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"""
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if kind in ("stories", "highlights"):
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return (item.get("shortcode"), 1)
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return (item.get("post_shortcode"), item.get("num"))
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def seed_archive_db(db: Path, existing: set[tuple[str, int]],
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live: list[dict], kind: str) -> int:
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"""
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Mark everything already held as downloaded, so a fetch into an empty
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directory pulls only what is missing.
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`live` is the metadata of one listing pass — the pass we have to make
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anyway — each entry carrying at least `media_id` plus the shortcode fields
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`live_key` needs. Seeding costs no additional Instagram requests, and needs
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only a *listing* of the archive, never its contents.
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"""
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import sqlite3
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db.parent.mkdir(parents=True, exist_ok=True)
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con = sqlite3.connect(db)
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con.execute(ARCHIVE_SCHEMA)
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rows = [
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(ARCHIVE_KEY(item["media_id"]),)
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for item in live
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if live_key(item, kind) in existing
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]
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con.executemany("INSERT OR IGNORE INTO archive (entry) VALUES (?)", rows)
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con.commit()
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con.close()
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return len(rows)
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def probe_live(src: Source, config: Path, cookies: str) -> list[dict]:
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"""
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One metadata-only listing pass. `sleep` is forced to 0 because it otherwise
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applies per *file* even with no download — 2275 files at 1-3s each is over
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an hour for a single profile.
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"""
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out = subprocess.run(
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["gallery-dl", "-j", "--config", str(config),
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"--cookies-from-browser", cookies, "-o", "sleep=0", src.url],
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capture_output=True, text=True, check=True,
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)
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items: list[dict] = []
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def walk(node):
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if isinstance(node, dict):
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if "media_id" in node and "shortcode" in node:
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items.append(node)
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for value in node.values():
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walk(value)
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elif isinstance(node, list):
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for value in node:
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walk(value)
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walk(json.loads(out.stdout))
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return items
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def rsync_command(staging: Path, dest: str, dry_run: bool) -> list[str]:
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"""
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Publish a staging tree into the archive.
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`--ignore-existing` is not an optimisation, it is the safety property: the
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archive deliberately outlives Instagram (posts exist here that Instagram no
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longer serves), so publishing must only ever *add*. No `--delete`, and
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nothing already present is overwritten — including sidecars, which get
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rewritten on every run and would otherwise churn the synced share.
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`dest` may be a local path or any rsync destination (`user@host:/path`),
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because the archive usually is not writable from the fetch host.
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"""
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cmd = ["rsync", "-a", "--ignore-existing", "--partial", "--info=stats2",
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# Belt and braces: the config lives outside staging, but nothing
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# resembling tooling output should ever reach the archive. Archive
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# sidecars are always "<date>_<user> - <code>.json", so none of
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# these can match real content.
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"--exclude", "gdl-sync*.json",
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"--exclude", "*.gdl-config.json",
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"--exclude", ".gdl-*",
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"--exclude", "*.sqlite", "--exclude", "*.db"]
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if dry_run:
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cmd.append("--dry-run")
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# Trailing slash: copy the *contents* of staging into dest.
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cmd += [f"{staging}/", dest if dest.endswith("/") else dest + "/"]
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return cmd
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def publish(staging: Path, dest: str, dry_run: bool) -> int:
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if not any(staging.iterdir()):
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print(" nothing staged; skipping publish")
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return 0
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cmd = rsync_command(staging, dest, dry_run)
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print(" " + " ".join(cmd))
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return subprocess.run(cmd).returncode
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def main() -> int:
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ap = argparse.ArgumentParser(description=__doc__,
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formatter_class=argparse.RawDescriptionHelpFormatter)
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ap.add_argument("--index", required=True,
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help="existing archive listing: a local root, or the "
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"viewer's base URL (only a FILE LISTING is needed, "
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"never the contents)")
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ap.add_argument("--publish", required=True,
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help="rsync destination for fetched files; a local path or "
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"user@host:/path")
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ap.add_argument("--staging", type=Path, required=True,
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help="local scratch directory gallery-dl writes into")
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g = ap.add_mutually_exclusive_group(required=True)
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g.add_argument("--profile", action="append", default=[],
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help="profile to sync; repeatable")
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g.add_argument("--all", action="store_true", help="every profile on disk")
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ap.add_argument("--cookies", default="chrome:/home/matt/.config/google-chrome-devtools",
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help="gallery-dl --cookies-from-browser value")
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ap.add_argument("--archive-db", type=Path, default=None,
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help="gallery-dl skip-archive sqlite path")
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ap.add_argument("--rate", default="1M", help="per-download rate cap")
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ap.add_argument("--sleep-request", nargs=2, type=float, default=[6.0, 10.0],
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metavar=("MIN", "MAX"))
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ap.add_argument("--sleep", nargs=2, type=float, default=[3.0, 6.0],
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metavar=("MIN", "MAX"))
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ap.add_argument("--no-stories", action="store_true",
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help="skip stories and highlights (posts and reels only)")
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mode = ap.add_mutually_exclusive_group()
|
|
mode.add_argument("--dry-run", action="store_true", default=True,
|
|
help="print the plan and the config; default")
|
|
mode.add_argument("--execute", action="store_true",
|
|
help="actually run gallery-dl")
|
|
args = ap.parse_args()
|
|
|
|
if not shutil.which("gallery-dl"):
|
|
print("gallery-dl not on PATH", file=sys.stderr)
|
|
return 2
|
|
if not shutil.which("rsync"):
|
|
print("rsync not on PATH", file=sys.stderr)
|
|
return 2
|
|
|
|
index = ArchiveIndex(args.index)
|
|
names = index.profiles()
|
|
if args.profile:
|
|
for p in args.profile:
|
|
if p not in names:
|
|
print(f"note: {p} is not in the index yet; it will be created")
|
|
selected = [Profile(p) for p in args.profile]
|
|
else:
|
|
selected = [Profile(p) for p in sorted(names)]
|
|
|
|
config = build_config(args.rate, list(args.sleep_request), list(args.sleep))
|
|
args.staging.mkdir(parents=True, exist_ok=True)
|
|
# Deliberately a SIBLING of the staging directory, not inside it: staging is
|
|
# rsynced wholesale into the archive, and a dry run caught this file being
|
|
# published to the archive root.
|
|
config_path = args.staging.parent / f"{args.staging.name}.gdl-config.json"
|
|
|
|
plan: list[tuple[Profile, Source]] = [
|
|
(prof, src)
|
|
for prof in selected
|
|
for src in prof.sources(include_stories=not args.no_stories)
|
|
]
|
|
|
|
print(f"profiles : {len(selected)}")
|
|
print(f"sources : {len(plan)}")
|
|
print(f"pacing : {args.sleep_request[0]}-{args.sleep_request[1]}s between "
|
|
f"requests, rate cap {args.rate}")
|
|
print(f"staging : {args.staging}")
|
|
print(f"publish : {args.publish}")
|
|
print()
|
|
|
|
if not args.execute:
|
|
for prof, src in plan:
|
|
dest = src.directory or "(per-highlight)"
|
|
print(f" {prof.user:<20} {src.kind:<11} -> {dest}")
|
|
print()
|
|
print(" " + " ".join(rsync_command(args.staging, args.publish, True)))
|
|
print("\ndry run; nothing fetched. pass --execute to run.")
|
|
return 0
|
|
|
|
config_path.write_text(json.dumps(config, indent=2))
|
|
failures = 0
|
|
|
|
for prof, src in plan:
|
|
print(f"==> {prof.user} / {src.kind}")
|
|
stage_dir = args.staging / (src.directory or ".")
|
|
stage_dir.mkdir(parents=True, exist_ok=True)
|
|
|
|
# Seed the skip-archive from what the archive already holds, so
|
|
# fetching into an empty staging directory pulls only what is missing.
|
|
# The listing pass this needs is one we have to make anyway.
|
|
if args.archive_db:
|
|
try:
|
|
live = probe_live(src, config_path, args.cookies)
|
|
held = index_existing(index.listing(prof.user))
|
|
seeded = seed_archive_db(args.archive_db, held, live,
|
|
src.subcategory)
|
|
print(f" seeded {seeded} of {len(live)} live items")
|
|
except subprocess.CalledProcessError as exc:
|
|
failures += 1
|
|
print(f" probe FAILED: {exc}", file=sys.stderr)
|
|
continue
|
|
|
|
cmd = gdl_command(src, args.staging, config_path, args.cookies,
|
|
args.archive_db)
|
|
result = subprocess.run(cmd)
|
|
if result.returncode != 0:
|
|
failures += 1
|
|
# Keep going: one private or renamed profile must not abort the run.
|
|
print(f" FAILED (exit {result.returncode})", file=sys.stderr)
|
|
|
|
# Publish once, at the end, so a partially-fetched profile never reaches
|
|
# the archive mid-run. Only ever adds -- see rsync_command.
|
|
print("\n==> publish")
|
|
if publish(args.staging, args.publish, dry_run=False) != 0:
|
|
failures += 1
|
|
|
|
print(f"\ndone; {failures} step(s) failed")
|
|
return 1 if failures else 0
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|