remove PyGithub from PEX, use stdlib urllib for GitHub API calls

The PEX only used PyGithub for two small scripts (fetch_github_avatar.py
and create_or_update_comment.py). Rewriting them against urllib drops
the dependency entirely and shrinks the PEX a bit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: gibsondan

scripts/release.py

@@ -130,7 +130,6 @@ def build_dagster_cloud_pex(
         dagster_dg_core_pkg,
         dagster_pipes_pkg,
         dagster_shared_pkg,
-        "PyGithub",
         "pex>=2.1.132,<3",
         "pip",
         "-o=dagster-cloud.pex",

src/create_or_update_comment.py

@@ -1,12 +1,17 @@
 import datetime
-import github
-from github import Github
+import json
 import os
+import sys
+import urllib.error
+import urllib.parse
+import urllib.request
 
 """
 Creates or updates a build status comment on a Pull Request, for branch deployments.
 """
 
+GITHUB_API = "https://api.github.com"
+
 SUCCESS_IMAGE_URL = (
     "https://raw.githubusercontent.com/dagster-io/dagster-cloud-action/main/assets/success.png"
 )
@@ -17,9 +22,9 @@
     "https://raw.githubusercontent.com/dagster-io/dagster-cloud-action/main/assets/failed.png"
 )
 
+
 def main():
-    # Fetch various pieces of info from the environment
-    g = Github(os.getenv("GITHUB_TOKEN"))
+    token = os.getenv("GITHUB_TOKEN")
     pr_id = int(os.getenv("INPUT_PR"))
     repo_id = os.getenv("GITHUB_REPOSITORY")
     action = os.getenv("INPUT_ACTION")
@@ -30,23 +35,7 @@ def main():
 
     location_name = os.getenv("INPUT_LOCATION_NAME")
 
-    repo = g.get_repo(repo_id)
-    pr = repo.get_pull(pr_id)
-
-    comments = pr.get_issue_comments()
-    comment_to_update = None
-
-    # Check if a comment exists on the PR from the github actions user
-    # which is specific to this location name
-    # otherwise we create a new comment
-    for comment in comments:
-        if (
-            comment.user.login == "github-actions[bot]"
-            and "Dagster Cloud" in comment.body
-            and f"`{location_name}`" in comment.body
-        ):
-            comment_to_update = comment
-            break
+    comment_to_update_id = _find_existing_comment(token, repo_id, pr_id, location_name)
 
     deployment_url = f"{org_url}/{deployment_name}/home"
 
@@ -64,18 +53,78 @@ def main():
 
     time_str = datetime.datetime.now(datetime.timezone.utc).strftime("%b %d, %Y at %I:%M %p (%Z)")
 
-    message = f"""
+    body = f"""
 Your pull request is automatically being deployed to Dagster Cloud.
 
 | Location          | Status          | Link    | Updated         |
-| ----------------- | --------------- | ------- | --------------- | 
+| ----------------- | --------------- | ------- | --------------- |
 | `{location_name}` | {status_image}  | {message}  | {time_str}      |
     """
 
-    if comment_to_update:
-        comment_to_update.edit(message)
+    if comment_to_update_id is not None:
+        _request(
+            "PATCH",
+            f"{GITHUB_API}/repos/{repo_id}/issues/comments/{comment_to_update_id}",
+            token,
+            {"body": body},
+        )
     else:
-        pr.create_issue_comment(message)
+        _request(
+            "POST",
+            f"{GITHUB_API}/repos/{repo_id}/issues/{pr_id}/comments",
+            token,
+            {"body": body},
+        )
+
+
+def _find_existing_comment(token, repo_id, pr_id, location_name):
+    # Check if a comment exists on the PR from the github actions user
+    # which is specific to this location name
+    page = 1
+    while True:
+        url = (
+            f"{GITHUB_API}/repos/{repo_id}/issues/{pr_id}/comments"
+            f"?per_page=100&page={page}"
+        )
+        comments = _request("GET", url, token)
+        if not comments:
+            return None
+        for comment in comments:
+            user_login = (comment.get("user") or {}).get("login")
+            body = comment.get("body") or ""
+            if (
+                user_login == "github-actions[bot]"
+                and "Dagster Cloud" in body
+                and f"`{location_name}`" in body
+            ):
+                return comment["id"]
+        if len(comments) < 100:
+            return None
+        page += 1
+
+
+def _request(method, url, token, payload=None):
+    data = None
+    headers = {
+        "Accept": "application/vnd.github+json",
+        "X-GitHub-Api-Version": "2022-11-28",
+        "User-Agent": "dagster-cloud-action",
+    }
+    if token:
+        headers["Authorization"] = f"Bearer {token}"
+    if payload is not None:
+        data = json.dumps(payload).encode("utf-8")
+        headers["Content-Type"] = "application/json"
+    req = urllib.request.Request(url, data=data, headers=headers, method=method)
+    try:
+        with urllib.request.urlopen(req) as resp:
+            body = resp.read()
+            if not body:
+                return None
+            return json.loads(body)
+    except urllib.error.HTTPError as err:
+        print(f"GitHub API {method} {url} failed: {err}", file=sys.stderr)
+        raise
 
 
 if __name__ == "__main__":

src/fetch_github_avatar.py

@@ -1,22 +1,43 @@
-from github import Github
+import json
 import os
+import sys
+import urllib.error
+import urllib.request
 
 """
 Fetches a user's avatar from the Github API based on email or username
 """
 
+GITHUB_API = "https://api.github.com"
 
-def main():
-    # Fetch various pieces of info from the environment
-    g = Github(os.getenv("GITHUB_TOKEN"))
 
+def main():
+    token = os.getenv("GITHUB_TOKEN")
     repo_id = os.getenv("GITHUB_REPOSITORY")
     commit_sha = os.getenv("GITHUB_SHA")
 
-    repo = g.get_repo(repo_id)
-    commit = repo.get_commit(commit_sha)
-
-    print(commit.author.avatar_url)
+    url = f"{GITHUB_API}/repos/{repo_id}/commits/{commit_sha}"
+    req = urllib.request.Request(url, headers=_headers(token))
+    try:
+        with urllib.request.urlopen(req) as resp:
+            commit = json.load(resp)
+    except urllib.error.HTTPError as err:
+        print(f"Failed to fetch commit {commit_sha}: {err}", file=sys.stderr)
+        sys.exit(1)
+
+    author = commit.get("author") or {}
+    print(author.get("avatar_url", ""))
+
+
+def _headers(token):
+    headers = {
+        "Accept": "application/vnd.github+json",
+        "X-GitHub-Api-Version": "2022-11-28",
+        "User-Agent": "dagster-cloud-action",
+    }
+    if token:
+        headers["Authorization"] = f"Bearer {token}"
+    return headers
 
 
 if __name__ == "__main__":