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clan-cli Machines: implement eval/build-cache

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This commit is contained in:
lassulus
2023-12-08 18:44:55 +01:00
parent dec431e69f
commit 8340d8f5f2
1 changed files with 11 additions and 2 deletions
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13
pkgs/clan-cli/clan_cli/machines/machines.py
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@@ -50,6 +50,8 @@ class Machine:
self.upload_secrets = self.machine_data["uploadSecrets"]
self.generate_secrets = self.machine_data["generateSecrets"]
self.secrets_upload_directory = self.machine_data["secretsUploadDirectory"]
self.eval_cache: dict[str, str] = {}
self.build_cache: dict[str, Path] = {}
@property
def host(self) -> Host:
@@ -83,28 +85,35 @@ class Machine:
exit(1)
return True
def eval_nix(self, attr: str) -> str:
def eval_nix(self, attr: str, refresh: bool = False) -> str:
"""
eval a nix attribute of the machine
@attr: the attribute to get
"""
if attr in self.eval_cache and not refresh:
return self.eval_cache[attr]
output = subprocess.run(
nix_eval([f"path:{self.flake_dir}#{attr}"]),
stdout=subprocess.PIPE,
check=True,
text=True,
).stdout.strip()
self.eval_cache[attr] = output
return output
def build_nix(self, attr: str) -> Path:
def build_nix(self, attr: str, refresh: bool = False) -> Path:
"""
build a nix attribute of the machine
@attr: the attribute to get
"""
if attr in self.build_cache and not refresh:
return self.build_cache[attr]
outpath = subprocess.run(
nix_build([f"path:{self.flake_dir}#{attr}"]),
stdout=subprocess.PIPE,
check=True,
text=True,
).stdout.strip()
self.build_cache[attr] = Path(outpath)
return Path(outpath)