update.py: support remotes other than github
right now we can only refer to repositories hosted on github. This allows to give random git repo uris like for instance: https://git.sr.ht/~whynothugo/lsp_lines.nvim
This commit is contained in:
Matthieu Coudron
parent
2cbde6d1a1
commit
46c68ad418
2 changed files with 142 additions and 71 deletions
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@ -81,29 +81,71 @@ def make_request(url: str) -> urllib.request.Request:
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headers["Authorization"] = f"token {token}"
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return urllib.request.Request(url, headers=headers)
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@dataclass
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class PluginDesc:
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owner: str
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repo: str
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branch: str
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alias: Optional[str]
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class Repo:
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def __init__(
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self, owner: str, name: str, branch: str, alias: Optional[str]
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self, uri: str, branch: str, alias: Optional[str]
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) -> None:
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self.owner = owner
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self.name = name
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self.uri = uri
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'''Url to the repo'''
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self.branch = branch
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self.alias = alias
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self.redirect: Dict[str, str] = {}
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def url(self, path: str) -> str:
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return urljoin(f"https://github.com/{self.owner}/{self.name}/", path)
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@property
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def name(self):
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return self.uri.split('/')[-1]
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def __repr__(self) -> str:
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return f"Repo({self.owner}, {self.name})"
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return f"Repo({self.name}, {self.uri})"
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@retry(urllib.error.URLError, tries=4, delay=3, backoff=2)
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def has_submodules(self) -> bool:
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return True
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@retry(urllib.error.URLError, tries=4, delay=3, backoff=2)
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def latest_commit(self) -> Tuple[str, datetime]:
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loaded = self._prefetch(None)
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updated = datetime.strptime(loaded['date'], "%Y-%m-%dT%H:%M:%S%z")
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return loaded['rev'], updated
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def _prefetch(self, ref: Optional[str]):
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cmd = ["nix-prefetch-git", "--quiet", "--fetch-submodules", self.uri]
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if ref is not None:
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cmd.append(ref)
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log.debug(cmd)
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data = subprocess.check_output(cmd)
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loaded = json.loads(data)
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return loaded
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def prefetch(self, ref: Optional[str]) -> str:
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loaded = self._prefetch(ref)
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return loaded["sha256"]
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def as_nix(self, plugin: "Plugin") -> str:
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return f'''fetchgit {{
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url = "{self.uri}";
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rev = "{plugin.commit}";
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sha256 = "{plugin.sha256}";
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}}'''
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class RepoGitHub(Repo):
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def __init__(
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self, owner: str, repo: str, branch: str, alias: Optional[str]
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) -> None:
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self.owner = owner
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self.repo = repo
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'''Url to the repo'''
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super().__init__(self.url(""), branch, alias)
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log.debug("Instantiating github repo %s/%s", self.owner, self.repo)
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@property
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def name(self):
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return self.repo
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def url(self, path: str) -> str:
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return urljoin(f"https://github.com/{self.owner}/{self.name}/", path)
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@retry(urllib.error.URLError, tries=4, delay=3, backoff=2)
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def has_submodules(self) -> bool:
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@ -122,7 +164,7 @@ class Repo:
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commit_url = self.url(f"commits/{self.branch}.atom")
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commit_req = make_request(commit_url)
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with urllib.request.urlopen(commit_req, timeout=10) as req:
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self.check_for_redirect(commit_url, req)
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self._check_for_redirect(commit_url, req)
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xml = req.read()
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root = ET.fromstring(xml)
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latest_entry = root.find(ATOM_ENTRY)
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@ -137,7 +179,7 @@ class Repo:
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updated = datetime.strptime(updated_tag.text, "%Y-%m-%dT%H:%M:%SZ")
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return Path(str(url.path)).name, updated
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def check_for_redirect(self, url: str, req: http.client.HTTPResponse):
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def _check_for_redirect(self, url: str, req: http.client.HTTPResponse):
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response_url = req.geturl()
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if url != response_url:
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new_owner, new_name = (
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@ -150,11 +192,13 @@ class Repo:
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new_plugin = plugin_line.format(owner=new_owner, name=new_name)
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self.redirect[old_plugin] = new_plugin
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def prefetch_git(self, ref: str) -> str:
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data = subprocess.check_output(
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["nix-prefetch-git", "--fetch-submodules", self.url(""), ref]
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)
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return json.loads(data)["sha256"]
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def prefetch(self, commit: str) -> str:
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if self.has_submodules():
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sha256 = super().prefetch(commit)
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else:
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sha256 = self.prefetch_github(commit)
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return sha256
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def prefetch_github(self, ref: str) -> str:
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data = subprocess.check_output(
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@ -162,6 +206,33 @@ class Repo:
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)
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return data.strip().decode("utf-8")
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def as_nix(self, plugin: "Plugin") -> str:
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if plugin.has_submodules:
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submodule_attr = "\n fetchSubmodules = true;"
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else:
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submodule_attr = ""
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return f'''fetchFromGitHub {{
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owner = "{self.owner}";
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repo = "{self.repo}";
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rev = "{plugin.commit}";
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sha256 = "{plugin.sha256}";{submodule_attr}
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}}'''
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@dataclass
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class PluginDesc:
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repo: Repo
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branch: str
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alias: Optional[str]
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@property
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def name(self):
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if self.alias is None:
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return self.repo.name
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else:
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return self.alias
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class Plugin:
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def __init__(
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@ -193,6 +264,7 @@ class Plugin:
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return copy
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class Editor:
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"""The configuration of the update script."""
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@ -241,9 +313,9 @@ class Editor:
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def create_parser(self):
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parser = argparse.ArgumentParser(
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description=(
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f"Updates nix derivations for {self.name} plugins"
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f"By default from {self.default_in} to {self.default_out}"
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description=(f"""
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Updates nix derivations for {self.name} plugins.\n
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By default from {self.default_in} to {self.default_out}"""
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)
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)
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parser.add_argument(
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@ -320,26 +392,24 @@ def prefetch_plugin(
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p: PluginDesc,
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cache: "Optional[Cache]" = None,
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) -> Tuple[Plugin, Dict[str, str]]:
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user, repo_name, branch, alias = p.owner, p.repo, p.branch, p.alias
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log.info(f"Fetching last commit for plugin {user}/{repo_name}@{branch}")
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repo = Repo(user, repo_name, branch, alias)
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repo, branch, alias = p.repo, p.branch, p.alias
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name = alias or p.repo.name
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commit = None
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log.info(f"Fetching last commit for plugin {name} from {repo.uri}@{branch}")
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commit, date = repo.latest_commit()
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has_submodules = repo.has_submodules()
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cached_plugin = cache[commit] if cache else None
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if cached_plugin is not None:
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log.debug("Cache hit !")
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cached_plugin.name = alias or repo_name
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cached_plugin.name = name
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cached_plugin.date = date
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return cached_plugin, repo.redirect
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print(f"prefetch {user}/{repo_name}")
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if has_submodules:
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sha256 = repo.prefetch_git(commit)
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else:
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sha256 = repo.prefetch_github(commit)
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has_submodules = repo.has_submodules()
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print(f"prefetch {name}")
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sha256 = repo.prefetch(commit)
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return (
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Plugin(alias or repo_name, commit, has_submodules, sha256, date=date),
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Plugin(name, commit, has_submodules, sha256, date=date),
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repo.redirect,
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)
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@ -360,16 +430,17 @@ def print_download_error(plugin: str, ex: Exception):
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def check_results(
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results: List[Tuple[str, str, Union[Exception, Plugin], Dict[str, str]]]
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) -> Tuple[List[Tuple[str, str, Plugin]], Dict[str, str]]:
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results: List[Tuple[PluginDesc, Union[Exception, Plugin], Dict[str, str]]]
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) -> Tuple[List[Tuple[PluginDesc, Plugin]], Dict[str, str]]:
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''' '''
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failures: List[Tuple[str, Exception]] = []
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plugins = []
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redirects: Dict[str, str] = {}
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for (owner, name, result, redirect) in results:
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for (pdesc, result, redirect) in results:
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if isinstance(result, Exception):
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failures.append((name, result))
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failures.append((pdesc.name, result))
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else:
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plugins.append((owner, name, result))
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plugins.append((pdesc, result))
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redirects.update(redirect)
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print(f"{len(results) - len(failures)} plugins were checked", end="")
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@ -384,17 +455,29 @@ def check_results(
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sys.exit(1)
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def make_repo(uri, branch, alias) -> Repo:
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'''Instantiate a Repo with the correct specialization depending on server (gitub spec)'''
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# dumb check to see if it's of the form owner/repo (=> github) or https://...
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res = uri.split('/')
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if len(res) <= 2:
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repo = RepoGitHub(res[0], res[1], branch, alias)
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else:
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repo = Repo(uri.strip(), branch, alias)
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return repo
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def parse_plugin_line(line: str) -> PluginDesc:
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branch = "HEAD"
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alias = None
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name, repo = line.split("/")
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if " as " in repo:
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repo, alias = repo.split(" as ")
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uri = line
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if " as " in uri:
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uri, alias = line.split(" as ")
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alias = alias.strip()
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if "@" in repo:
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repo, branch = repo.split("@")
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if "@" in line:
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uri, branch = line.split("@")
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return PluginDesc(name.strip(), repo.strip(), branch.strip(), alias)
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repo = make_repo(uri.strip(), branch.strip(), alias)
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return PluginDesc(repo, branch.strip(), alias)
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def load_plugin_spec(plugin_file: str) -> List[PluginDesc]:
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@ -404,10 +487,6 @@ def load_plugin_spec(plugin_file: str) -> List[PluginDesc]:
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if line.startswith("#"):
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continue
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plugin = parse_plugin_line(line)
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if not plugin.owner:
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msg = f"Invalid repository {line}, must be in the format owner/repo[ as alias]"
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print(msg, file=sys.stderr)
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sys.exit(1)
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plugins.append(plugin)
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return plugins
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@ -467,14 +546,13 @@ class Cache:
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def prefetch(
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pluginDesc: PluginDesc, cache: Cache
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) -> Tuple[str, str, Union[Exception, Plugin], dict]:
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owner, repo = pluginDesc.owner, pluginDesc.repo
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) -> Tuple[PluginDesc, Union[Exception, Plugin], dict]:
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try:
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plugin, redirect = prefetch_plugin(pluginDesc, cache)
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cache[plugin.commit] = plugin
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return (owner, repo, plugin, redirect)
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return (pluginDesc, plugin, redirect)
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except Exception as e:
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return (owner, repo, e, {})
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return (pluginDesc, e, {})
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def rewrite_input(
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@ -52,38 +52,31 @@ HEADER = (
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class VimEditor(pluginupdate.Editor):
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def generate_nix(self, plugins: List[Tuple[str, str, pluginupdate.Plugin]], outfile: str):
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sorted_plugins = sorted(plugins, key=lambda v: v[2].name.lower())
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def generate_nix(self, plugins: List[Tuple[pluginupdate.PluginDesc, pluginupdate.Plugin]], outfile: str):
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sorted_plugins = sorted(plugins, key=lambda v: v[0].name.lower())
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with open(outfile, "w+") as f:
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f.write(HEADER)
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f.write(textwrap.dedent("""
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{ lib, buildVimPluginFrom2Nix, fetchFromGitHub }:
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{ lib, buildVimPluginFrom2Nix, fetchFromGitHub, fetchgit }:
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final: prev:
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{"""
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))
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for owner, repo, plugin in sorted_plugins:
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if plugin.has_submodules:
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submodule_attr = "\n fetchSubmodules = true;"
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else:
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submodule_attr = ""
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for pdesc, plugin in sorted_plugins:
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f.write(textwrap.indent(textwrap.dedent(
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repo = pdesc.repo
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src_nix = repo.as_nix(plugin)
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f.write(
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f"""
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{plugin.normalized_name} = buildVimPluginFrom2Nix {{
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pname = "{plugin.name}";
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version = "{plugin.version}";
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src = fetchFromGitHub {{
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owner = "{owner}";
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repo = "{repo}";
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rev = "{plugin.commit}";
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sha256 = "{plugin.sha256}";{submodule_attr}
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}};
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meta.homepage = "https://github.com/{owner}/{repo}/";
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src = {src_nix};
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meta.homepage = "{repo.uri}";
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}};
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"""
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), ' '))
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)
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f.write("\n}\n")
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print(f"updated {outfile}")
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