Merge changes Ie29a8a89,I873eedcf into main
* changes: store: delete obsolete lsof-disabling code store: guess the URL of failing fixed-output derivations
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d3286d0990
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doc/manual/rl-next/fod-failure-includes-url.md
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16
doc/manual/rl-next/fod-failure-includes-url.md
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@ -0,0 +1,16 @@
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---
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synopsis: "Hash mismatch diagnostics for fixed-output derivations include the URL"
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cls: [1536]
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credits: [jade]
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category: Improvements
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---
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Now, when building fixed-output derivations, Lix will guess the URL that was used in the derivation using the `url` or `urls` properties in the derivation environment.
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This is a layering violation but making these diagnostics tractable when there are multiple instances of the `AAAA` hash is too significant of an improvement to pass it up.
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```
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error: hash mismatch in fixed-output derivation '/nix/store/sjfw324j4533lwnpmr5z4icpb85r63ai-x1.drv':
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likely URL: https://meow.puppy.forge/puppy.tar.gz
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specified: sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
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got: sha256-a1Qvp3FOOkWpL9kFHgugU1ok5UtRPSu+NwCZKbbaEro=
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```
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@ -433,9 +433,6 @@ I grepped `src/` for `get[eE]nv\("` to find the mentions in Lix code.
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- `NIX_PROFILE` - Selects which profile `nix-env` will operate on. Documented elsewhere.
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- `NIX_SSHOPTS` - Options passed to `ssh(1)` when using a ssh remote store.
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Incorrectly documented on `nix-copy-closure` which is *surely* not the only place they are used??
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- `_NIX_TEST_NO_LSOF` - Used on non-Linux, non-macOS platforms to disable using `lsof` when finding gc roots.
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Since https://git.lix.systems/lix-project/lix/issues/156 was fixed, this should probably just be removed as it was a bad workaround for a macOS issue.
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- `_NIX_TEST_GC_SYNC_1` - Path to a pipe that is used to block the GC briefly to validate invariants from the test suite.
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- `_NIX_TEST_GC_SYNC_2` - Path to a pipe that is used to block the GC briefly to validate invariants from the test suite.
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- `_NIX_TEST_FREE_SPACE_FILE` - Path to a file containing a decimal number with the free space that the GC is to believe it has.
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@ -2546,9 +2546,12 @@ SingleDrvOutputs LocalDerivationGoal::registerOutputs()
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/* Throw an error after registering the path as
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valid. */
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worker.hashMismatch = true;
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// XXX: shameless layering violation hack that makes the hash mismatch error at least not utterly worthless
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auto guessedUrl = getOr(drv->env, "urls", getOr(drv->env, "url", "(unknown)"));
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delayedException = std::make_exception_ptr(
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BuildError("hash mismatch in fixed-output derivation '%s':\n specified: %s\n got: %s",
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BuildError("hash mismatch in fixed-output derivation '%s':\n likely URL: %s\n specified: %s\n got: %s",
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worker.store.printStorePath(drvPath),
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guessedUrl,
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wanted.to_string(SRI, true),
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got.to_string(SRI, true)));
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}
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@ -321,10 +321,9 @@ Roots LocalStore::findRoots(bool censor)
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void LocalStore::findPlatformRoots(UncheckedRoots & unchecked)
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{
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// lsof is really slow on OS X. This actually causes the gc-concurrent.sh test to fail.
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// See: https://github.com/NixOS/nix/issues/3011
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// Because of this we disable lsof when running the tests.
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if (getEnv("_NIX_TEST_NO_LSOF") != "1") {
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// N.B. This is (read: undertested!) fallback code only used for
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// non-Darwin, non-Linux platforms. Both major platforms have
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// platform-specific code in src/libstore/platform/
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try {
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std::regex lsofRegex(R"(^n(/.*)$)");
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auto lsofLines =
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@ -337,7 +336,6 @@ void LocalStore::findPlatformRoots(UncheckedRoots & unchecked)
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} catch (ExecError & e) {
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/* lsof not installed, lsof failed */
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}
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}
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}
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void LocalStore::findRuntimeRoots(Roots & roots, bool censor)
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@ -142,6 +142,8 @@ test "$(<<<"$out" grep -E '^error:' | wc -l)" = 2
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<<<"$out" grepQuiet -E "hash mismatch in fixed-output derivation '.*-x1\\.drv'"
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<<<"$out" grepQuiet -vE "hash mismatch in fixed-output derivation '.*-x3\\.drv'"
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<<<"$out" grepQuiet -vE "hash mismatch in fixed-output derivation '.*-x2\\.drv'"
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<<<"$out" grepQuiet -E "likely URL: https://meow.puppy.forge/puppy.tar.gz"
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<<<"$out" grepQuiet -vE "likely URL: https://kitty.forge/cat.tar.gz"
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<<<"$out" grepQuiet -E "error: build of '.*-x[1-4]\\.drv\\^out', '.*-x[1-4]\\.drv\\^out', '.*-x[1-4]\\.drv\\^out', '.*-x[1-4]\\.drv\\^out' failed"
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out="$(nix build -f fod-failing.nix -L x1 x2 x3 --keep-going 2>&1)" && status=0 || status=$?
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@ -151,6 +153,9 @@ test "$(<<<"$out" grep -E '^error:' | wc -l)" = 4
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<<<"$out" grepQuiet -E "hash mismatch in fixed-output derivation '.*-x1\\.drv'"
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<<<"$out" grepQuiet -E "hash mismatch in fixed-output derivation '.*-x3\\.drv'"
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<<<"$out" grepQuiet -E "hash mismatch in fixed-output derivation '.*-x2\\.drv'"
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<<<"$out" grepQuiet -E "likely URL: https://meow.puppy.forge/puppy.tar.gz"
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<<<"$out" grepQuiet -E "likely URL: https://kitty.forge/cat.tar.gz"
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<<<"$out" grepQuiet -E "likely URL: \(unknown\)"
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<<<"$out" grepQuiet -E "error: build of '.*-x[1-3]\\.drv\\^out', '.*-x[1-3]\\.drv\\^out', '.*-x[1-3]\\.drv\\^out' failed"
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out="$(nix build -f fod-failing.nix -L x4 2>&1)" && status=0 || status=$?
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@ -6,6 +6,7 @@ rec {
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''
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echo $name > $out
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'';
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url = "https://meow.puppy.forge/puppy.tar.gz";
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outputHashMode = "recursive";
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outputHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
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};
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@ -15,6 +16,7 @@ rec {
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''
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echo $name > $out
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'';
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urls = "https://kitty.forge/cat.tar.gz";
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outputHashMode = "recursive";
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outputHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
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};
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