diff options
| -rw-r--r-- | doc/manual/command-ref/conf-file.xml | 14 | ||||
| -rw-r--r-- | scripts/install-darwin-multi-user.sh | 2 | ||||
| -rw-r--r-- | src/build-remote/build-remote.cc | 6 | ||||
| -rw-r--r-- | src/libexpr/primops/fetchGit.cc | 1 | ||||
| -rw-r--r-- | src/libstore/globals.hh | 5 | ||||
| -rw-r--r-- | src/nix-daemon/nix-daemon.cc | 2 | ||||
| -rw-r--r-- | tests/fetchGit.sh | 13 |
7 files changed, 38 insertions, 5 deletions
diff --git a/doc/manual/command-ref/conf-file.xml b/doc/manual/command-ref/conf-file.xml index 87f05fb1c..2ddca991f 100644 --- a/doc/manual/command-ref/conf-file.xml +++ b/doc/manual/command-ref/conf-file.xml @@ -321,6 +321,20 @@ false</literal>.</para> </varlistentry> + <varlistentry><term><literal>builders-use-substitutes</literal></term> + + <listitem><para>If set to <literal>true</literal>, Nix will instruct + remote build machines to use their own binary substitutes if available. In + practical terms, this means that remote hosts will fetch as many build + dependencies as possible from their own substitutes (e.g, from + <literal>cache.nixos.org</literal>), instead of waiting for this host to + upload them all. This can drastically reduce build times if the network + connection between this computer and the remote build host is slow. Defaults + to <literal>false</literal>.</para></listitem> + + </varlistentry> + + <varlistentry><term><literal>fallback</literal></term> <listitem><para>If set to <literal>true</literal>, Nix will fall diff --git a/scripts/install-darwin-multi-user.sh b/scripts/install-darwin-multi-user.sh index 7bd00e42b..91194a299 100644 --- a/scripts/install-darwin-multi-user.sh +++ b/scripts/install-darwin-multi-user.sh @@ -33,7 +33,7 @@ readonly NIX_FIRST_BUILD_UID="30001" readonly NIX_ROOT="/nix" readonly PLIST_DEST=/Library/LaunchDaemons/org.nixos.nix-daemon.plist -readonly PROFILE_TARGETS=("/etc/profile" "/etc/bashrc" "/etc/zshrc") +readonly PROFILE_TARGETS=("/etc/bashrc" "/etc/zshrc") readonly PROFILE_BACKUP_SUFFIX=".backup-before-nix" readonly PROFILE_NIX_FILE="$NIX_ROOT/var/nix/profiles/default/etc/profile.d/nix-daemon.sh" diff --git a/src/build-remote/build-remote.cc b/src/build-remote/build-remote.cc index 445006b32..df579729a 100644 --- a/src/build-remote/build-remote.cc +++ b/src/build-remote/build-remote.cc @@ -218,9 +218,11 @@ connected: signal(SIGALRM, old); } + auto substitute = settings.buildersUseSubstitutes ? Substitute : NoSubstitute; + { Activity act(*logger, lvlTalkative, actUnknown, fmt("copying dependencies to '%s'", storeUri)); - copyPaths(store, ref<Store>(sshStore), inputs, NoRepair, NoCheckSigs); + copyPaths(store, ref<Store>(sshStore), inputs, NoRepair, NoCheckSigs, substitute); } uploadLock = -1; @@ -240,7 +242,7 @@ connected: if (!missing.empty()) { Activity act(*logger, lvlTalkative, actUnknown, fmt("copying outputs from '%s'", storeUri)); setenv("NIX_HELD_LOCKS", concatStringsSep(" ", missing).c_str(), 1); /* FIXME: ugly */ - copyPaths(ref<Store>(sshStore), store, missing, NoRepair, NoCheckSigs); + copyPaths(ref<Store>(sshStore), store, missing, NoRepair, NoCheckSigs, substitute); } return; diff --git a/src/libexpr/primops/fetchGit.cc b/src/libexpr/primops/fetchGit.cc index 0d0b11958..fb664cffb 100644 --- a/src/libexpr/primops/fetchGit.cc +++ b/src/libexpr/primops/fetchGit.cc @@ -85,7 +85,6 @@ GitInfo exportGit(ref<Store> store, const std::string & uri, Path cacheDir = getCacheDir() + "/nix/git"; if (!pathExists(cacheDir)) { - createDirs(cacheDir); runProgram("git", true, { "init", "--bare", cacheDir }); } diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh index ae4b78a01..af72f7b1e 100644 --- a/src/libstore/globals.hh +++ b/src/libstore/globals.hh @@ -138,6 +138,11 @@ public: Setting<std::string> builders{this, "@" + nixConfDir + "/machines", "builders", "A semicolon-separated list of build machines, in the format of nix.machines."}; + Setting<bool> buildersUseSubstitutes{this, false, "builders-use-substitutes", + "Whether build machines should use their own substitutes for obtaining " + "build dependencies if possible, rather than waiting for this host to " + "upload them."}; + Setting<off_t> reservedSize{this, 8 * 1024 * 1024, "gc-reserved-space", "Amount of reserved disk space for the garbage collector."}; diff --git a/src/nix-daemon/nix-daemon.cc b/src/nix-daemon/nix-daemon.cc index 5629cc64b..b5d49b642 100644 --- a/src/nix-daemon/nix-daemon.cc +++ b/src/nix-daemon/nix-daemon.cc @@ -411,7 +411,7 @@ static void performOp(TunnelLogger * logger, ref<LocalStore> store, /* 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"); + throw Error("repairing is not allowed because you are not in 'trusted-users'"); } logger->startWork(); store->buildPaths(drvs, mode); diff --git a/tests/fetchGit.sh b/tests/fetchGit.sh index 65d673c08..b556fe594 100644 --- a/tests/fetchGit.sh +++ b/tests/fetchGit.sh @@ -119,3 +119,16 @@ path4=$(nix eval --raw "(builtins.fetchGit $repo).outPath") # Confirm same as 'dev' branch path5=$(nix eval --raw "(builtins.fetchGit { url = $repo; ref = \"dev\"; }).outPath") [[ $path3 = $path5 ]] + + +# Nuke the cache +rm -rf $TEST_HOME/.cache/nix/git + +# Try again, but without 'git' on PATH +NIX=$(command -v nix) +# This should fail +(! PATH= $NIX eval --raw "(builtins.fetchGit { url = $repo; ref = \"dev\"; }).outPath" ) + +# Try again, with 'git' available. This should work. +path5=$(nix eval --raw "(builtins.fetchGit { url = $repo; ref = \"dev\"; }).outPath") +[[ $path3 = $path5 ]] |