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Add a proper nix option for the external GC

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This commit is contained in:
Théophane Hufschmitt 2022-04-11 10:20:37 +02:00
parent f76bfbfbd6
commit 240f1614d8
2 changed files with 10 additions and 2 deletions
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5
src/libstore/gc.cc
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@ -269,8 +269,9 @@ void LocalStore::findRootsNoTemp(Roots & roots, bool censor)
throw SysError("cannot create Unix domain socket");
closeOnExec(fd.get());
// FIXME: Don’t hardcode
string socketPath = getEnv("NIX_GC_SOCKET_PATH").value_or("/nix/var/nix/gc-socket/socket");
std::string socketPath = settings.gcSocketPath.get() != "auto"
? settings.gcSocketPath.get()
: stateDir.get() + gcSocketPath;
struct sockaddr_un addr;
addr.sun_family = AF_UNIX;

7
src/libstore/globals.hh
View file

@ -94,6 +94,13 @@ public:
Setting<std::string> storeUri{this, getEnv("NIX_REMOTE").value_or("auto"), "store",
"The default Nix store to use."};
Setting<std::string> gcSocketPath {
this,
getEnv("NIX_GC_SOCKET_PATH").value_or("auto"),
"gc-socket-path",
"Path to the socket used to communicate with an external GC."
};
Setting<bool> keepFailed{this, false, "keep-failed",
"Whether to keep temporary directories of failed builds."};