Add tagged CLI and TUI releases (#67)

.gitea/scripts/release.py

@@ -0,0 +1,194 @@
+#!/usr/bin/env python3
+"""Create and publish complete tagged Gotcha CLI/TUI releases."""
+
+from __future__ import annotations
+
+import json
+import os
+import re
+import subprocess
+import sys
+import unittest
+from urllib.error import HTTPError
+from urllib.parse import quote
+from urllib.request import Request, urlopen
+
+
+PLATFORMS = (
+    "darwin-arm64",
+    "darwin-x64",
+    "linux-arm64",
+    "linux-x64",
+    "windows-x64",
+)
+
+
+def issue_numbers(message: str) -> list[int]:
+    return sorted({int(number) for number in re.findall(r"#(\d+)", message)})
+
+
+def safe_version(tag: str) -> str:
+    return re.sub(r"[^A-Za-z0-9._-]", "-", tag)
+
+
+def asset_names(tag: str) -> list[str]:
+    version = safe_version(tag)
+    return [f"gotcha-{version}-{platform}.tar.gz" for platform in PLATFORMS]
+
+
+def markdown(text: str) -> str:
+    return text.replace("\\", "\\\\").replace("[", "\\[").replace("]", "\\]")
+
+
+def release_body(issues: list[dict[str, object]], server: str, repository: str, sha: str) -> str:
+    groups = {"Fixes": [], "Improvements": [], "Other changes": []}
+    for issue in issues:
+        labels = {label["name"] for label in issue.get("labels", [])}  # type: ignore[index]
+        group = "Fixes" if "bug" in labels else "Improvements" if "enhancement" in labels else "Other changes"
+        title = " ".join(str(issue["title"]).split())
+        groups[group].append(f"- [#{issue['number']} {markdown(title)}]({issue['html_url']})")
+
+    sections = [f"## {name}\n" + "\n".join(items) for name, items in groups.items() if items]
+    if not sections:
+        sections.append("No closed issues were linked from commits in this release.")
+    sections.append(f"Built from [{sha[:12]}]({server}/{repository}/commit/{sha}).")
+    return "\n\n".join(sections)
+
+
+def validate_assets(assets: list[dict[str, object]], tag: str) -> None:
+    expected = asset_names(tag)
+    actual = sorted(str(asset["name"]) for asset in assets)
+    if actual != expected:
+        raise RuntimeError(f"release assets differ: expected {expected}, got {actual}")
+    empty = [str(asset["name"]) for asset in assets if int(asset.get("size", 0)) <= 0]
+    if empty:
+        raise RuntimeError(f"release assets are empty: {empty}")
+
+
+class Gitea:
+    def __init__(self) -> None:
+        self.api_url = os.environ["GITEA_API_URL"].rstrip("/")
+        self.repository = os.environ["GITEA_REPOSITORY"]
+        self.token = os.environ["GITEA_TOKEN"]
+
+    def request(self, method: str, path: str, payload: object | None = None) -> object:
+        data = None if payload is None else json.dumps(payload).encode()
+        request = Request(
+            f"{self.api_url}{path}",
+            data=data,
+            method=method,
+            headers={"Authorization": f"token {self.token}", "Content-Type": "application/json"},
+        )
+        with urlopen(request) as response:
+            content = response.read()
+        return None if not content else json.loads(content)
+
+    def issue(self, number: int) -> dict[str, object]:
+        return self.request("GET", f"/repos/{self.repository}/issues/{number}")  # type: ignore[return-value]
+
+
+def commit_messages(sha: str) -> str:
+    try:
+        previous = subprocess.check_output(
+            ["git", "describe", "--tags", "--abbrev=0", f"{sha}^"],
+            stderr=subprocess.DEVNULL,
+            text=True,
+        ).strip()
+    except subprocess.CalledProcessError:
+        previous = ""
+    revision = f"{previous}..{sha}" if previous else sha
+    return subprocess.check_output(["git", "log", "--format=%s%n%b", revision], text=True)
+
+
+def prepare() -> None:
+    gitea = Gitea()
+    tag = os.environ["GITEA_REF_NAME"]
+    sha = os.environ["GITEA_SHA"]
+    server = os.environ["GITEA_SERVER_URL"].rstrip("/")
+
+    issues = [gitea.issue(number) for number in issue_numbers(commit_messages(sha))]
+    closed = [issue for issue in issues if issue["state"] == "closed"]
+    payload = {
+        "tag_name": tag,
+        "target_commitish": sha,
+        "name": tag,
+        "body": release_body(closed, server, gitea.repository, sha),
+        "draft": True,
+        "prerelease": False,
+    }
+
+    try:
+        release = gitea.request("GET", f"/repos/{gitea.repository}/releases/tags/{quote(tag, safe='')}")
+    except HTTPError as error:
+        if error.code != 404:
+            raise
+        release = gitea.request("POST", f"/repos/{gitea.repository}/releases", payload)
+    else:
+        if not release["draft"]:  # type: ignore[index]
+            raise RuntimeError(f"release {tag} is already published")
+        release = gitea.request("PATCH", f"/repos/{gitea.repository}/releases/{release['id']}", payload)  # type: ignore[index]
+        for asset in release["assets"] or []:  # type: ignore[index]
+            gitea.request(
+                "DELETE",
+                f"/repos/{gitea.repository}/releases/{release['id']}/assets/{asset['id']}",  # type: ignore[index]
+            )
+
+    with open(os.environ["GITHUB_OUTPUT"], "a", encoding="utf-8") as output:
+        output.write(f"release_id={release['id']}\n")  # type: ignore[index]
+
+
+def publish() -> None:
+    gitea = Gitea()
+    release_id = int(os.environ["RELEASE_ID"])
+    release = gitea.request("GET", f"/repos/{gitea.repository}/releases/{release_id}")
+    validate_assets(release["assets"] or [], os.environ["GITEA_REF_NAME"])  # type: ignore[index]
+    gitea.request("PATCH", f"/repos/{gitea.repository}/releases/{release_id}", {"draft": False})
+
+
+class ReleaseTests(unittest.TestCase):
+    def test_notes_are_unique_sorted_grouped_and_linked(self) -> None:
+        self.assertEqual(issue_numbers("Fix #12, refs #3 and #12"), [3, 12])
+        body = release_body(
+            [
+                {
+                    "number": 12,
+                    "title": "Fix [unlock]",
+                    "html_url": "https://example.test/issues/12",
+                    "labels": [{"name": "bug"}],
+                },
+                {
+                    "number": 3,
+                    "title": "Add search",
+                    "html_url": "https://example.test/issues/3",
+                    "labels": [{"name": "enhancement"}],
+                },
+            ],
+            "https://example.test",
+            "owner/repo",
+            "1234567890abcdef",
+        )
+        self.assertIn("## Fixes\n- [#12 Fix \\[unlock\\]](https://example.test/issues/12)", body)
+        self.assertIn("## Improvements\n- [#3 Add search](https://example.test/issues/3)", body)
+        self.assertIn("[1234567890ab](https://example.test/owner/repo/commit/1234567890abcdef)", body)
+
+    def test_manifest_is_exact_and_non_empty(self) -> None:
+        names = asset_names("v1.0.0/rc1")
+        assets = [{"name": name, "size": 1} for name in names]
+        validate_assets(assets, "v1.0.0/rc1")
+        with self.assertRaises(RuntimeError):
+            validate_assets(assets[:-1], "v1.0.0/rc1")
+        assets[0]["size"] = 0
+        with self.assertRaises(RuntimeError):
+            validate_assets(assets, "v1.0.0/rc1")
+
+
+if __name__ == "__main__":
+    command = sys.argv[1] if len(sys.argv) == 2 else ""
+    if command == "prepare":
+        prepare()
+    elif command == "publish":
+        publish()
+    elif command == "test":
+        unittest.main(argv=[sys.argv[0]])
+    else:
+        raise SystemExit("usage: release.py prepare|publish|test")