import shutil
import subprocess
import sys
+import tarfile
import tempfile
import types
import urllib.parse
pass
+class SymlinkPin(NamedTuple):
+ @property
+ def release_name(self) -> str:
+ return 'link'
+
+
class GitPin(NamedTuple):
git_revision: str
release_name: str
tarball_sha256: str
-Pin = Union[AliasPin, GitPin, ChannelPin]
+Pin = Union[AliasPin, SymlinkPin, GitPin, ChannelPin]
+
+
+def copy_to_nix_store(v: Verification, filename: str) -> str:
+ v.status('Putting tarball in Nix store')
+ process = subprocess.run(
+ ['nix-store', '--add', filename], stdout=subprocess.PIPE)
+ v.result(process.returncode == 0)
+ return process.stdout.decode().strip()
class AliasSearchPath(NamedTuple):
return AliasPin()
+class SymlinkSearchPath(NamedTuple):
+ path: str
+
+ # pylint: disable=no-self-use
+ def pin(self, _: Verification, __: Optional[Pin]) -> SymlinkPin:
+ return SymlinkPin()
+
+ def fetch(self, v: Verification, _: Pin) -> str:
+ with tempfile.TemporaryDirectory() as td:
+ archive_filename = os.path.join(td, 'link.tar.gz')
+ os.symlink(self.path, os.path.join(td, 'link'))
+ with tarfile.open(archive_filename, mode='x:gz') as t:
+ t.add(os.path.join(td, 'link'), arcname='link')
+ return copy_to_nix_store(v, archive_filename)
+
+
class GitSearchPath(NamedTuple):
git_ref: str
git_repo: str
v, pin.tarball_url, Digest16(pin.tarball_sha256))
-SearchPath = Union[AliasSearchPath, GitSearchPath, ChannelSearchPath]
+SearchPath = Union[AliasSearchPath,
+ SymlinkSearchPath,
+ GitSearchPath,
+ ChannelSearchPath]
TarrableSearchPath = Union[GitSearchPath, ChannelSearchPath]
git.wait()
v.result(git.returncode == 0 and xz.returncode == 0)
- v.status('Putting tarball in Nix store')
- process = subprocess.run(
- ['nix-store', '--add', output_filename], stdout=subprocess.PIPE)
- v.result(process.returncode == 0)
- store_tarball = process.stdout.decode().strip()
+ store_tarball = copy_to_nix_store(v, output_filename)
os.makedirs(os.path.dirname(cache_file), exist_ok=True)
open(cache_file, 'w').write(store_tarball)
'alias': (AliasSearchPath, AliasPin),
'channel': (ChannelSearchPath, ChannelPin),
'git': (GitSearchPath, GitPin),
+ 'symlink': (SymlinkSearchPath, SymlinkPin),
}
SP, P = mapping[conf['type']]
_, all_fields = filter_dict(dict(conf.items()), set(['type']))