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daemon: Add 'buildMode' parameter to 'buildPaths' RPC.

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* nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0x10f.
* nix/libstore/remote-store.cc (RemoteStore::buildPaths): Send the
BUILDMODE when the daemon supports it.  Reject invalid values of
BUILDMODE for old daemons.
* nix/nix-daemon/nix-daemon.cc (performOp) <wopBuildPaths>: Read the
build mode when the client supports it.
This commit is contained in:
Ludovic Courtès 2015-12-02 18:43:51 +02:00
parent e134baae77
commit 708d907000
3 changed files with 20 additions and 4 deletions
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11
nix/libstore/remote-store.cc
View file

@ -462,11 +462,18 @@ Paths RemoteStore::importPaths(bool requireSignature, Source & source)
void RemoteStore::buildPaths(const PathSet & drvPaths, BuildMode buildMode)
{
if (buildMode != bmNormal) throw Error("repairing or checking is not supported when building through the Nix daemon");
openConnection();
writeInt(wopBuildPaths, to);
if (GET_PROTOCOL_MINOR(daemonVersion) >= 13)
if (GET_PROTOCOL_MINOR(daemonVersion) >= 13) {
writeStrings(drvPaths, to);
if (GET_PROTOCOL_MINOR(daemonVersion) >= 15) {
writeInt(buildMode, to);
}
/* Old daemons did not take a 'buildMode' parameter, so we need to
validate it here on the client side. */
else if (buildMode != bmNormal) throw Error("repairing or checking \
is not supported when building through the Nix daemon");
}
else {
/* For backwards compatibility with old daemons, strip output
identifiers. */

2
nix/libstore/worker-protocol.hh
View file

@ -6,7 +6,7 @@ namespace nix {
#define WORKER_MAGIC_1 0x6e697863
#define WORKER_MAGIC_2 0x6478696f
#define PROTOCOL_VERSION 0x10e
#define PROTOCOL_VERSION 0x10f
#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)

11
nix/nix-daemon/nix-daemon.cc
View file

@ -451,8 +451,17 @@ static void performOp(bool trusted, unsigned int clientVersion,
case wopBuildPaths: {
PathSet drvs = readStorePaths<PathSet>(from);
BuildMode mode = bmNormal;
if (GET_PROTOCOL_MINOR(clientVersion) >= 15) {
mode = (BuildMode)readInt(from);
/* Repairing is not atomic, so disallowed for "untrusted"
clients. */
if (mode == bmRepair && !trusted)
throw Error("repairing is not supported when building through the Nix daemon");
}
startWork();
store->buildPaths(drvs);
store->buildPaths(drvs, mode);
stopWork();
writeInt(1, to);
break;