60 lines
2.5 KiB
Nix
60 lines
2.5 KiB
Nix
import ./make-test-python.nix ({ lib, pkgs, ... }:
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{
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name = "binary-cache";
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meta.maintainers = with lib.maintainers; [ thomasjm ];
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nodes.machine =
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{ pkgs, ... }: {
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imports = [ ../modules/installer/cd-dvd/channel.nix ];
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environment.systemPackages = [ pkgs.python3 ];
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system.extraDependencies = [ pkgs.hello.inputDerivation ];
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nix.extraOptions = ''
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experimental-features = nix-command
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'';
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};
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testScript = ''
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# Build the cache, then remove it from the store
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cachePath = machine.succeed("nix-build --no-out-link -E 'with import <nixpkgs> {}; mkBinaryCache { rootPaths = [hello]; }'").strip()
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machine.succeed("cp -r %s/. /tmp/cache" % cachePath)
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machine.succeed("nix-store --delete " + cachePath)
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# Sanity test of cache structure
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status, stdout = machine.execute("ls /tmp/cache")
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cache_files = stdout.split()
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assert ("nix-cache-info" in cache_files)
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assert ("nar" in cache_files)
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# Nix store ping should work
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machine.succeed("nix store ping --store file:///tmp/cache")
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# Cache should contain a .narinfo referring to "hello"
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grepLogs = machine.succeed("grep -l 'StorePath: /nix/store/[[:alnum:]]*-hello-.*' /tmp/cache/*.narinfo")
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# Get the store path referenced by the .narinfo
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narInfoFile = grepLogs.strip()
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narInfoContents = machine.succeed("cat " + narInfoFile)
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import re
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match = re.match(r"^StorePath: (/nix/store/[a-z0-9]*-hello-.*)$", narInfoContents, re.MULTILINE)
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if not match: raise Exception("Couldn't find hello store path in cache")
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storePath = match[1]
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# Delete the store path
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machine.succeed("nix-store --delete " + storePath)
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machine.succeed("[ ! -d %s ] || exit 1" % storePath)
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# Should be able to build hello using the cache
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logs = machine.succeed("nix-build -A hello '<nixpkgs>' --option require-sigs false --option trusted-substituters file:///tmp/cache --option substituters file:///tmp/cache 2>&1")
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logLines = logs.split("\n")
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if not "this path will be fetched" in logLines[0]: raise Exception("Unexpected first log line")
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def shouldBe(got, desired):
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if got != desired: raise Exception("Expected '%s' but got '%s'" % (desired, got))
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shouldBe(logLines[1], " " + storePath)
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shouldBe(logLines[2], "copying path '%s' from 'file:///tmp/cache'..." % storePath)
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shouldBe(logLines[3], storePath)
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# Store path should exist in the store now
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machine.succeed("[ -d %s ] || exit 1" % storePath)
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'';
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})
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