refactor(backend): 启动环境初始化与资源项目化（零跨项目依赖）
- main.py：uv run main.py 一键启动——读取 backend/.env、TORCH_HOME/NLTK_DATA 指向项目内缓存、certifi SSL + NO_PROXY 网络直连、默认开启 s2s，启动横幅 - vendor/：补丁后 s2s 云化栈移入项目（backend/vendor/s2s-cloud），pyproject sources 改相对路径 - .gitignore：忽略 .torch-cache / nltk_data 缓存 - AGENTS.md：进程管理铁律（AI 不启动/重启服务，由用户操作）
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Pine
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#!/usr/bin/env python3
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"""Fetch stargazer history for a repo and render it as a static SVG.
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Runs in CI with the automatic GITHUB_TOKEN. No third-party dependencies.
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Usage:
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GITHUB_TOKEN=... python star_history.py owner/repo output.svg
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"""
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import json
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import math
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import os
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import sys
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import urllib.request
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from datetime import datetime, timezone
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API = "https://api.github.com/graphql"
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PER_PAGE = 100
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MAX_PAGES = 400 # preserve the REST implementation's 40k-star cap
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MAX_POINTS = 120 # downsample the curve to at most this many points
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def gh_post(query: str, variables: dict, token: str) -> dict:
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payload = json.dumps({"query": query, "variables": variables}).encode()
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req = urllib.request.Request(API, data=payload)
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req.add_header("Accept", "application/vnd.github+json")
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req.add_header("Content-Type", "application/json")
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req.add_header("X-GitHub-Api-Version", "2022-11-28")
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if token:
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req.add_header("Authorization", f"Bearer {token}")
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with urllib.request.urlopen(req, timeout=30) as resp:
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result = json.loads(resp.read())
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if result.get("errors"):
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raise RuntimeError(json.dumps(result["errors"]))
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return result
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def fetch_star_dates(repo: str, token: str) -> list[datetime]:
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owner, name = repo.split("/", 1)
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query = """
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query($owner: String!, $name: String!, $cursor: String, $perPage: Int!) {
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repository(owner: $owner, name: $name) {
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stargazers(first: $perPage, after: $cursor) {
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edges { starredAt }
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pageInfo { hasNextPage endCursor }
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}
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}
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}
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"""
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dates = []
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page = 1
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cursor = None
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while True:
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result = gh_post(
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query,
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{
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"owner": owner,
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"name": name,
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"cursor": cursor,
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"perPage": PER_PAGE,
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},
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token,
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)
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stargazers = result["data"]["repository"]["stargazers"]
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for edge in stargazers["edges"]:
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ts = edge.get("starredAt")
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if ts:
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dates.append(
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datetime.strptime(ts, "%Y-%m-%dT%H:%M:%SZ").replace(
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tzinfo=timezone.utc
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)
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)
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page_info = stargazers["pageInfo"]
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if not page_info["hasNextPage"]:
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break
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page += 1
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if page > MAX_PAGES:
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break
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cursor = page_info["endCursor"]
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dates.sort()
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return dates
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def downsample(dates: list[datetime]) -> list[tuple[datetime, int]]:
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n = len(dates)
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points = [(dates[0], 1)]
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if n > 1:
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step = max(1, n // MAX_POINTS)
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for i in range(step, n, step):
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points.append((dates[i], i + 1))
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points.append((dates[-1], n))
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now = datetime.now(timezone.utc)
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points.append((now, n))
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return points
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def nice_ceil(v: float) -> int:
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if v <= 0:
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return 1
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mag = 10 ** int(math.floor(math.log10(v)))
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for mult in (1, 1.2, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10):
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if v <= mag * mult:
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return int(mag * mult)
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return int(mag * 10)
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def render_svg(points: list[tuple[datetime, int]], repo: str) -> str:
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width, height = 800, 420
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ml, mr, mt, mb = 70, 30, 50, 60
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pw, ph = width - ml - mr, height - mt - mb
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t0 = points[0][0].timestamp()
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t1 = points[-1][0].timestamp()
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tspan = max(t1 - t0, 1)
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ymax = nice_ceil(points[-1][1] * 1.08)
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def x(ts: float) -> float:
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return ml + (ts - t0) / tspan * pw
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def y(v: float) -> float:
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return mt + ph - v / ymax * ph
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line = " ".join(
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f"{'M' if i == 0 else 'L'}{x(d.timestamp()):.1f},{y(c):.1f}"
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for i, (d, c) in enumerate(points)
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)
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area = (
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line
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+ f" L{x(points[-1][0].timestamp()):.1f},{y(0):.1f}"
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+ f" L{x(points[0][0].timestamp()):.1f},{y(0):.1f} Z"
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)
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grid, ylabels = [], []
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for i in range(6):
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v = ymax * i / 5
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yy = y(v)
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grid.append(
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f'<line x1="{ml}" y1="{yy:.1f}" x2="{ml + pw}" y2="{yy:.1f}" '
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f'stroke="#8b949e" stroke-opacity="0.25" stroke-width="1"/>'
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)
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label = f"{v / 1000:.1f}k".replace(".0k", "k") if v >= 1000 else f"{int(v)}"
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ylabels.append(
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f'<text x="{ml - 10}" y="{yy + 4:.1f}" text-anchor="end" '
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f'class="lbl">{label}</text>'
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)
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xlabels = []
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for i in range(6):
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ts = t0 + tspan * i / 5
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d = datetime.fromtimestamp(ts, tz=timezone.utc)
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xlabels.append(
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f'<text x="{x(ts):.1f}" y="{mt + ph + 22}" text-anchor="middle" '
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f'class="lbl">{d.strftime("%b %Y")}</text>'
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)
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total = points[-1][1]
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return f"""<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 {width} {height}" font-family="-apple-system,'Segoe UI',Helvetica,Arial,sans-serif">
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<style>
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.lbl {{ font-size: 12px; fill: #8b949e; }}
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.title {{ font-size: 16px; font-weight: 600; fill: #8b949e; }}
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.total {{ font-size: 13px; fill: #8b949e; }}
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</style>
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<text x="{ml}" y="28" class="title">{repo} star history</text>
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<text x="{ml + pw}" y="28" text-anchor="end" class="total">{total:,} stars</text>
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{"".join(grid)}
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{"".join(ylabels)}
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{"".join(xlabels)}
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<path d="{area}" fill="#f4b400" fill-opacity="0.12"/>
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<path d="{line}" fill="none" stroke="#f4b400" stroke-width="2.5" stroke-linejoin="round"/>
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<circle cx="{x(points[-1][0].timestamp()):.1f}" cy="{y(total):.1f}" r="4" fill="#f4b400"/>
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</svg>
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"""
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def main() -> int:
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if len(sys.argv) != 3:
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print(__doc__)
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return 2
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repo, out = sys.argv[1], sys.argv[2]
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token = os.environ.get("GITHUB_TOKEN", "")
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dates = fetch_star_dates(repo, token)
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if not dates:
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print("no stargazers found", file=sys.stderr)
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return 1
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os.makedirs(os.path.dirname(out) or ".", exist_ok=True)
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svg = render_svg(downsample(dates), repo)
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with open(out, "w") as f:
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f.write(svg)
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print(f"wrote {out} ({len(dates):,} stars)")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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