Don't crash when copying realisations to a non-ca remote

Rather throw a proper exception, and catch&log it on the client side
This commit is contained in:
regnat 2021-02-19 17:58:28 +01:00
parent aead35531a
commit f67ff1f575
4 changed files with 33 additions and 7 deletions

View file

@ -165,10 +165,15 @@ bool Settings::isExperimentalFeatureEnabled(const std::string & name)
return std::find(f.begin(), f.end(), name) != f.end();
}
MissingExperimentalFeature::MissingExperimentalFeature(std::string feature)
: Error("experimental Nix feature '%1%' is disabled; use '--experimental-features %1%' to override", feature)
, missingFeature(feature)
{}
void Settings::requireExperimentalFeature(const std::string & name)
{
if (!isExperimentalFeatureEnabled(name))
throw Error("experimental Nix feature '%1%' is disabled; use '--experimental-features %1%' to override", name);
throw MissingExperimentalFeature(name);
}
bool Settings::isWSL1()

View file

@ -45,6 +45,16 @@ struct PluginFilesSetting : public BaseSetting<Paths>
void set(const std::string & str, bool append = false) override;
};
/* MakeError(MissingExperimentalFeature, Error); */
class MissingExperimentalFeature: public Error
{
public:
std::string missingFeature;
MissingExperimentalFeature(std::string feature);
virtual const char* sname() const override { return "MissingExperimentalFeature"; }
};
class Settings : public Config {
unsigned int getDefaultCores();
@ -632,7 +642,7 @@ public:
is `root`.
> **Warning**
>
>
> Adding a user to `trusted-users` is essentially equivalent to
> giving that user root access to the system. For example, the user
> can set `sandbox-paths` and thereby obtain read access to
@ -722,13 +732,13 @@ public:
The program executes with no arguments. The program's environment
contains the following environment variables:
- `DRV_PATH`
- `DRV_PATH`
The derivation for the built paths.
Example:
`/nix/store/5nihn1a7pa8b25l9zafqaqibznlvvp3f-bash-4.4-p23.drv`
- `OUT_PATHS`
- `OUT_PATHS`
Output paths of the built derivation, separated by a space
character.
@ -759,7 +769,7 @@ public:
documentation](https://ec.haxx.se/usingcurl-netrc.html).
> **Note**
>
>
> This must be an absolute path, and `~` is not resolved. For
> example, `~/.netrc` won't resolve to your home directory's
> `.netrc`.

View file

@ -655,6 +655,7 @@ void LocalStore::checkDerivationOutputs(const StorePath & drvPath, const Derivat
void LocalStore::registerDrvOutput(const Realisation & info)
{
settings.requireExperimentalFeature("ca-derivations");
auto state(_state.lock());
retrySQLite<void>([&]() {
state->stmts->RegisterRealisedOutput.use()

View file

@ -794,8 +794,18 @@ std::map<StorePath, StorePath> copyPaths(ref<Store> srcStore, ref<Store> dstStor
realisations.insert(*realisation);
}
auto pathsMap = copyPaths(srcStore, dstStore, storePaths, repair, checkSigs, substitute);
for (auto& realisation : realisations) {
dstStore->registerDrvOutput(realisation);
try {
for (auto& realisation : realisations) {
dstStore->registerDrvOutput(realisation);
}
} catch (MissingExperimentalFeature & e) {
// Don't fail if the remote doesn't support CA derivations is it might
// not be whithin our control to change that, and we might still want
// to at least copy the output paths.
if (e.missingFeature == "ca-derivations")
ignoreException();
else
throw;
}
return pathsMap;