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utils.py
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utils.py
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import datetime
import hashlib
import json
import os
import jwt
import requests
def _get_event_payload():
with open(os.environ.get("GITHUB_EVENT_PATH")) as file:
event_payload = json.load(file)
return event_payload
class GitHubHelper:
event_payload = _get_event_payload()
event_name = os.environ.get("GITHUB_EVENT_NAME")
branch_name = (
os.environ.get("GITHUB_HEAD_REF")
if event_name in ["pull_request", "pull_request_target"]
else os.environ.get("GITHUB_REF_NAME")
)
github_token = os.environ.get("INPUT_REPO_TOKEN")
gh_repo_rw_token = os.environ.get("INPUT_GH_REPO_RW_TOKEN")
github_api_url = os.environ.get("GITHUB_API_URL")
github_base_repository = os.environ.get("GITHUB_REPOSITORY")
pr_number = event_payload.get("number", "-1")
repo_name = (
event_payload["pull_request"]["head"]["repo"]["full_name"]
if event_name in ["pull_request", "pull_request_target"]
else os.environ.get("GITHUB_REPOSITORY")
)
compose_file_location = os.environ.get("INPUT_COMPOSE_FILE")
@staticmethod
def get_project_url():
return f"https://github.com/{GitHubHelper.repo_name}.git"
@staticmethod
def comment_on_gh_pr(comment):
if not GitHubHelper.github_token:
raise Exception("INVALID GITHUB TOKEN _ EMPTY")
headers = {
"Authorization": f"Bearer {GitHubHelper.github_token}",
"X-GitHub-Api-Version": "2022-11-28",
"Accept": "application/vnd.github+json",
}
comment_identifier_keyword = f"Sarthi Deployment Status {SarthiHelper.get_unique_code()}"
comment_id = None
# List current comments on PR
url = f"{GitHubHelper.github_api_url}/repos/{GitHubHelper.github_base_repository}/issues/{GitHubHelper.pr_number}/comments"
response = requests.get(url, headers=headers)
response.raise_for_status()
comment_list = response.json()
for github_comment in comment_list:
if (
"bot" in github_comment["user"]["login"]
and comment_identifier_keyword in github_comment["body"]
):
comment_id = github_comment["id"]
break
if comment_id:
url = f"{GitHubHelper.github_api_url}/repos/{GitHubHelper.github_base_repository}/issues/comments/{comment_id}"
else:
url = f"{GitHubHelper.github_api_url}/repos/{GitHubHelper.github_base_repository}/issues/{GitHubHelper.pr_number}/comments"
data = {"body": comment_identifier_keyword + "🤖\n" + comment}
response = requests.post(url, headers=headers, json=data)
print(f"Tried commenting on GitHub Issue with response {response.text}")
response.raise_for_status()
class SarthiHelper:
_sarthi_secret = os.environ.get("INPUT_SARTHI_SECRET")
_sarthi_server_url = os.environ.get("INPUT_SARTHI_SERVER_URL")
@staticmethod
def _get_headers():
return {
"Authorization": f"Bearer {SarthiHelper._generate_bearer_token(SarthiHelper._sarthi_secret)}",
"Content-Type": "application/json",
}
@staticmethod
def _generate_bearer_token(secret) -> str:
payload = {
"sub": "sarthi",
"iat": datetime.datetime.utcnow(), # Issued at time
"exp": datetime.datetime.utcnow()
+ datetime.timedelta(minutes=1), # Expiration time
}
token = jwt.encode(payload, secret, algorithm="HS256")
return token
@staticmethod
def get_unique_code():
return hashlib.md5(GitHubHelper.repo_name.encode()).hexdigest()[:16]
@staticmethod
def deploy_preview(project_git_url, branch, compose_file_location, gh_token):
body = {
"project_git_url": project_git_url,
"branch": branch,
"compose_file_location": compose_file_location,
"gh_token": gh_token
}
try:
response = requests.post(
url=f"{SarthiHelper._sarthi_server_url}/deploy",
headers=SarthiHelper._get_headers(),
data=json.dumps(body),
)
response.raise_for_status()
except requests.RequestException as e:
print(f"Error deploying services", e)
raise e
service_urls = response.json()
print(f"Successfully deployed ✅ {project_git_url}/{branch}")
print("\n".join(f"- {url}" for url in service_urls))
return service_urls
@staticmethod
def delete_preview(project_git_url, branch, compose_file_location, gh_token=None):
body = {
"project_git_url": project_git_url,
"branch": branch,
"compose_file_location": compose_file_location,
"gh_token": gh_token
}
response = requests.delete(
url=f"{SarthiHelper._sarthi_server_url}/deploy",
headers=SarthiHelper._get_headers(),
data=json.dumps(body),
)
response.raise_for_status()
print(f"Tried deleting preview environment with response {response.text}")
return response.text
def handle_push_events():
SarthiHelper.deploy_preview(
GitHubHelper.get_project_url(),
GitHubHelper.branch_name,
GitHubHelper.compose_file_location,
GitHubHelper.gh_repo_rw_token
)
def handle_pr_events():
action = GitHubHelper.event_payload["action"]
if action in ["opened", "synchronize", "reopened"]:
services_url = SarthiHelper.deploy_preview(
GitHubHelper.get_project_url(),
GitHubHelper.branch_name,
GitHubHelper.compose_file_location,
GitHubHelper.gh_repo_rw_token
)
GitHubHelper.comment_on_gh_pr(
f"Deployed Services Successfully ✅\n"
+ "\n".join(f"- {url}" for url in services_url)
)
elif action == "closed":
SarthiHelper.delete_preview(
GitHubHelper.get_project_url(),
GitHubHelper.branch_name,
GitHubHelper.compose_file_location,
)
GitHubHelper.comment_on_gh_pr(
f"Deleted ephemeral / preview environment for {GitHubHelper.get_project_url()}/{GitHubHelper.branch_name}"
)
else:
raise ValueError(f"Unknown action type detected {action}")
def handle_delete_events():
SarthiHelper.delete_preview(
GitHubHelper.get_project_url(),
GitHubHelper.branch_name,
GitHubHelper.compose_file_location
)