From: Scott Worley Date: Wed, 17 Jun 2020 23:23:26 +0000 (-0700) Subject: Add symlink SearchPath type X-Git-Tag: 2.0.0~2 X-Git-Url: http://git.scottworley.com/pinch/commitdiff_plain/0afcdb2a33c630ba4b2f882c4fad670e06ee3d98?ds=inline Add symlink SearchPath type --- diff --git a/pinch.py b/pinch.py index 9b845e3..37d37a7 100644 --- a/pinch.py +++ b/pinch.py @@ -11,6 +11,7 @@ import shlex import shutil import subprocess import sys +import tarfile import tempfile import types import urllib.parse @@ -97,6 +98,12 @@ class AliasPin(NamedTuple): pass +class SymlinkPin(NamedTuple): + @property + def release_name(self) -> str: + return 'link' + + class GitPin(NamedTuple): git_revision: str release_name: str @@ -109,7 +116,15 @@ class ChannelPin(NamedTuple): 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): @@ -120,6 +135,22 @@ 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 @@ -168,7 +199,10 @@ class ChannelSearchPath(NamedTuple): v, pin.tarball_url, Digest16(pin.tarball_sha256)) -SearchPath = Union[AliasSearchPath, GitSearchPath, ChannelSearchPath] +SearchPath = Union[AliasSearchPath, + SymlinkSearchPath, + GitSearchPath, + ChannelSearchPath] TarrableSearchPath = Union[GitSearchPath, ChannelSearchPath] @@ -513,11 +547,7 @@ def git_get_tarball( 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) @@ -614,6 +644,7 @@ def read_config_section( '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'])) diff --git a/tests/symlink.sh b/tests/symlink.sh new file mode 100755 index 0000000..7f4c354 --- /dev/null +++ b/tests/symlink.sh @@ -0,0 +1,25 @@ +#!/bin/sh + +. ./tests/lib/test-setup.sh + +foo_setup + +cat >> "$conf" <'\'' --install --from-expression '\''f: f \{ name = "link"; channelName = "bar"; src = builtins.storePath "'"$NIX_STORE_DIR"'/.{32}-link.tar.gz"; \}'\'' '\''f: f \{ name = "(repo-[0-9]{10}-[0-9a-f]{11})"; channelName = "foo"; src = builtins.storePath "'"$NIX_STORE_DIR"'/.{32}-\1.tar.xz"; \}'\''$' + +if echo "$actual_env_command" | egrep "$expected_env_command_RE" > /dev/null;then + echo PASS +else + echo "Output: $actual_env_command" + echo "does not match RE: $expected_env_command_RE" + exit 1 +fi