mirror of
https://github.com/NixOS/nix
synced 2024-09-20 11:11:03 -04:00
bb50c89319
This is mostly for use in the sandbox tests, since if the Nix store is under /build, then we can't use /build as the build directory.
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
#include "machines.hh"
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#include "util.hh"
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#include "globals.hh"
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#include <algorithm>
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namespace nix {
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Machine::Machine(decltype(storeUri) storeUri,
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decltype(systemTypes) systemTypes,
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decltype(sshKey) sshKey,
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decltype(maxJobs) maxJobs,
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decltype(speedFactor) speedFactor,
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decltype(supportedFeatures) supportedFeatures,
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decltype(mandatoryFeatures) mandatoryFeatures,
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decltype(sshPublicHostKey) sshPublicHostKey) :
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storeUri(
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// Backwards compatibility: if the URI is a hostname,
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// prepend ssh://.
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storeUri.find("://") != std::string::npos || hasPrefix(storeUri, "local") || hasPrefix(storeUri, "remote") || hasPrefix(storeUri, "auto")
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? storeUri
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: "ssh://" + storeUri),
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systemTypes(systemTypes),
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sshKey(sshKey),
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maxJobs(maxJobs),
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speedFactor(std::max(1U, speedFactor)),
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supportedFeatures(supportedFeatures),
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mandatoryFeatures(mandatoryFeatures),
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sshPublicHostKey(sshPublicHostKey)
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{}
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bool Machine::allSupported(const std::set<string> & features) const {
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return std::all_of(features.begin(), features.end(),
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[&](const string & feature) {
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return supportedFeatures.count(feature) ||
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mandatoryFeatures.count(feature);
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});
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}
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bool Machine::mandatoryMet(const std::set<string> & features) const {
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return std::all_of(mandatoryFeatures.begin(), mandatoryFeatures.end(),
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[&](const string & feature) {
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return features.count(feature);
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});
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}
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void parseMachines(const std::string & s, Machines & machines)
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{
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for (auto line : tokenizeString<std::vector<string>>(s, "\n;")) {
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chomp(line);
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line.erase(std::find(line.begin(), line.end(), '#'), line.end());
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if (line.empty()) continue;
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auto tokens = tokenizeString<std::vector<string>>(line);
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auto sz = tokens.size();
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if (sz < 1)
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throw FormatError("bad machine specification ‘%s’", line);
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auto isSet = [&](size_t n) {
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return tokens.size() > n && tokens[n] != "" && tokens[n] != "-";
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};
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machines.emplace_back(tokens[0],
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isSet(1) ? tokenizeString<std::vector<string>>(tokens[1], ",") : std::vector<string>{settings.thisSystem},
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isSet(2) ? tokens[2] : "",
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isSet(3) ? std::stoull(tokens[3]) : 1LL,
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isSet(4) ? std::stoull(tokens[4]) : 1LL,
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isSet(5) ? tokenizeString<std::set<string>>(tokens[5], ",") : std::set<string>{},
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isSet(6) ? tokenizeString<std::set<string>>(tokens[6], ",") : std::set<string>{},
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isSet(7) ? tokens[7] : "");
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}
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}
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Machines getMachines()
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{
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Machines machines;
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for (auto & file : settings.builderFiles.get()) {
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try {
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parseMachines(readFile(file), machines);
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} catch (const SysError & e) {
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if (e.errNo != ENOENT)
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throw;
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}
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}
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parseMachines(settings.builders, machines);
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return machines;
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}
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}
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