Create app.py

app.py

@@ -0,0 +1,93 @@
+import gradio as gr
+import duckdb
+import urllib.parse
+
+PARQUET_PATH = "v3_repos.parquet"
+
+con = duckdb.connect()
+
+text = """\
+![](https://huggingface.co/spaces/HuggingFaceCode/in-the-stack/resolve/main/banner.png)
+# Am I in The Stack?
+
+[The Stack v3](https://huggingface.co/datasets/HuggingFaceCode/stack-v3-train) is \
+a 15.9 TB dataset of source code across 713 programming languages from 173M repositories, \
+crawled from GitHub in 2025.
+
+We want to give developers agency over their source code \
+by letting them decide whether or not it should be used to develop and evaluate \
+machine learning models.
+
+Enter your GitHub username below to check if any of your repositories are in The Stack v3. \
+If your code is found, you will get a pre-filled opt-out link \
+that submits a properly formatted removal request on your behalf. \
+**Please use this tool to submit opt-out requests** rather than opening issues manually — \
+it ensures your request can be processed quickly and correctly.
+"""
+
+opt_out_text_template = """\
+### Opt-out
+
+If you want your data to be removed from The Stack and model training, \
+open an issue with <a href="https://github.com/bigcode-project/opt-out-v2/issues/new?title={title}&body={body}" target="_blank">this link</a> \
+(if the link doesn't work, try right-clicking and opening it in a new tab) \
+or visit [https://github.com/bigcode-project/opt-out-v2/issues/new?&template=opt-out-request.md](https://github.com/bigcode-project/opt-out-v2/issues/new?&template=opt-out-request.md).\
+"""
+
+opt_out_issue_title = "Opt-out request for {username}"
+opt_out_issue_body = """\
+I request that the following data is removed from The Stack:
+
+{repo_list}
+
+_Note_: If you don't want all repositories removed, edit the list above. \
+To exclude everything under your username, replace the list with a single "all" entry.
+"""
+
+
+def issue_url(username, repos):
+    title = urllib.parse.quote(opt_out_issue_title.format(username=username))
+    body = urllib.parse.quote(
+        opt_out_issue_body.format(repo_list=" - " + "\n - ".join(repos))
+    )
+    return opt_out_text_template.format(title=title, body=body)
+
+
+def check_username(username):
+    username = username.strip()
+    if not username:
+        return "", ""
+
+    repos = con.execute(
+        f"""SELECT repo FROM read_parquet('{PARQUET_PATH}')
+            WHERE "user" = $1 ORDER BY repo""",
+        [username.lower()],
+    ).fetchall()
+    repos = [row[0] for row in repos]
+
+    if not repos:
+        return "**No**, your code is not in The Stack v3.", ""
+
+    repo_word = "repository" if len(repos) == 1 else "repositories"
+    lines = [f"**Yes**, there is code from **{len(repos)} {repo_word}** in The Stack v3:\n"]
+    for repo in repos:
+        full = f"{username}/{repo}"
+        lines.append(f"[{full}](https://github.com/{full})\n")
+    output_md = "\n".join(lines).strip()
+
+    full_names = [f"{username}/{r}" for r in repos]
+    return output_md, issue_url(username, full_names)
+
+
+with gr.Blocks() as demo:
+    with gr.Row():
+        _, col, _ = gr.Column(scale=1), gr.Column(scale=6), gr.Column(scale=1)
+        with col:
+            gr.Markdown(text)
+            username = gr.Text("", label="Your GitHub username:")
+            check_button = gr.Button("Check!")
+            repos_md = gr.Markdown()
+            opt_out_md = gr.Markdown()
+            check_button.click(check_username, [username], [repos_md, opt_out_md])
+
+demo.launch()