Merge pull request #7600 from obsidiansystems/explicit-drv-ness

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Valentin Gagarin 2023-02-28 23:48:17 +01:00 committed by GitHub
commit d5af43cb42
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8 changed files with 64 additions and 26 deletions

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@ -1,2 +1,18 @@
# Release X.Y (202?-??-??)
* The special handling of an [installable](../command-ref/new-cli/nix.md#installables) with `.drv` suffix being interpreted as all of the given [store derivation](../glossary.md#gloss-store-derivation)'s output paths is removed, and instead taken as the literal store path that it represents.
The new `^` syntax for store paths introduced in Nix 2.13 allows explicitly referencing output paths of a derivation.
Using this is better and more clear than relying on the now-removed `.drv` special handling.
For example,
```shell-session
$ nix path-info /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv
```
now gives info about the derivation itself, while
```shell-session
$ nix path-info /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv^*
```
provides information about each of its outputs.

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@ -31,25 +31,22 @@ InstallableDerivedPath InstallableDerivedPath::parse(
ExtendedOutputsSpec extendedOutputsSpec)
{
auto derivedPath = std::visit(overloaded {
// If the user did not use ^, we treat the output more liberally.
// If the user did not use ^, we treat the output more
// liberally: we accept a symlink chain or an actual
// store path.
[&](const ExtendedOutputsSpec::Default &) -> DerivedPath {
// First, we accept a symlink chain or an actual store path.
auto storePath = store->followLinksToStorePath(prefix);
// Second, we see if the store path ends in `.drv` to decide what sort
// of derived path they want.
//
// This handling predates the `^` syntax. The `^*` in
// `/nix/store/hash-foo.drv^*` unambiguously means "do the
// `DerivedPath::Built` case", so plain `/nix/store/hash-foo.drv` could
// also unambiguously mean "do the DerivedPath::Opaque` case".
//
// Issue #7261 tracks reconsidering this `.drv` dispatching.
return storePath.isDerivation()
? (DerivedPath) DerivedPath::Built {
.drvPath = std::move(storePath),
// Remove this prior to stabilizing the new CLI.
if (storePath.isDerivation()) {
auto oldDerivedPath = DerivedPath::Built {
.drvPath = storePath,
.outputs = OutputsSpec::All { },
}
: (DerivedPath) DerivedPath::Opaque {
};
warn(
"The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '%s'",
oldDerivedPath.to_string(*store));
};
return DerivedPath::Opaque {
.path = std::move(storePath),
};
},

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@ -677,9 +677,12 @@ StorePathSet Installable::toDerivations(
for (const auto & b : i->toDerivedPaths())
std::visit(overloaded {
[&](const DerivedPath::Opaque & bo) {
if (!useDeriver)
throw Error("argument '%s' did not evaluate to a derivation", i->what());
drvPaths.insert(getDeriver(store, *i, bo.path));
drvPaths.insert(
bo.path.isDerivation()
? bo.path
: useDeriver
? getDeriver(store, *i, bo.path)
: throw Error("argument '%s' did not evaluate to a derivation", i->what()));
},
[&](const DerivedPath::Built & bfd) {
drvPaths.insert(bfd.drvPath);

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@ -23,7 +23,7 @@ nix log $outPath 2>&1 | grep 'is not available'
nix log --substituters file://$cacheDir $outPath | grep FOO
# Test copying build logs from the binary cache.
nix store copy-log --from file://$cacheDir $(nix-store -qd $outPath)
nix store copy-log --from file://$cacheDir $(nix-store -qd $outPath)^'*'
nix log $outPath | grep FOO
basicDownloadTests() {

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@ -28,6 +28,12 @@ nix realisation info --file ./content-addressed.nix transitivelyDependentCA
nix realisation info --file ./content-addressed.nix dependentCA
# nix realisation info --file ./content-addressed.nix rootCA --outputs out
if isDaemonNewer "2.13"; then
pushToStore="../push-to-store.sh"
else
pushToStore="../push-to-store-old.sh"
fi
# Same thing, but
# 1. With non-ca derivations
# 2. Erasing the realisations on the remote store
@ -37,7 +43,7 @@ nix realisation info --file ./content-addressed.nix dependentCA
#
# Regression test for #4725
clearStore
nix build --file ../simple.nix -L --no-link --post-build-hook ../push-to-store.sh
nix build --file ../simple.nix -L --no-link --post-build-hook "$pushToStore"
clearStore
rm -r "$REMOTE_STORE_DIR/realisations"
nix build --file ../simple.nix -L --no-link --substitute --substituters "$REMOTE_STORE" --no-require-sigs -j0
@ -52,7 +58,7 @@ if [[ -z "$(ls "$REMOTE_STORE_DIR/realisations")" ]]; then
fi
# Test the local realisation disk cache
buildDrvs --post-build-hook ../push-to-store.sh
buildDrvs --post-build-hook "$pushToStore"
clearStore
# Add the realisations of rootCA to the cachecache
clearCacheCache

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@ -9,8 +9,14 @@ echo 'require-sigs = false' >> $NIX_CONF_DIR/nix.conf
restartDaemon
if isDaemonNewer "2.13"; then
pushToStore="$PWD/push-to-store.sh"
else
pushToStore="$PWD/push-to-store-old.sh"
fi
# Build the dependencies and push them to the remote store.
nix-build -o $TEST_ROOT/result dependencies.nix --post-build-hook $PWD/push-to-store.sh
nix-build -o $TEST_ROOT/result dependencies.nix --post-build-hook "$pushToStore"
clearStore

10
tests/push-to-store-old.sh Executable file
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@ -0,0 +1,10 @@
#!/bin/sh
set -x
set -e
[ -n "$OUT_PATHS" ]
[ -n "$DRV_PATH" ]
echo Pushing "$OUT_PATHS" to "$REMOTE_STORE"
printf "%s" "$DRV_PATH" | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs

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@ -7,4 +7,4 @@ set -e
[ -n "$DRV_PATH" ]
echo Pushing "$OUT_PATHS" to "$REMOTE_STORE"
printf "%s" "$DRV_PATH" | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs
printf "%s" "$DRV_PATH"^'*' | xargs nix copy --to "$REMOTE_STORE" --no-require-sigs