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Remove download-via-ssh
Replaced by SSHStore.
This commit is contained in:
Eelco Dolstra
parent
27dc76c1a5
commit
c54814b175
3
.gitignore
vendored
3
.gitignore
vendored
@ -71,9 +71,6 @@ Makefile.config
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# /src/nix-channel/
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/src/nix-channel/nix-channel
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# /src/download-via-ssh/
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/src/download-via-ssh/download-via-ssh
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# /src/buildenv/
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/src/buildenv/buildenv
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1
Makefile
1
Makefile
@ -26,7 +26,6 @@ makefiles = \
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misc/emacs/local.mk \
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doc/manual/local.mk \
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tests/local.mk
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#src/download-via-ssh/local.mk \
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GLOBAL_CXXFLAGS += -std=c++14 -g -Wall
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@ -1,142 +0,0 @@
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#include "shared.hh"
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#include "util.hh"
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#include "serialise.hh"
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#include "archive.hh"
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#include "affinity.hh"
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#include "globals.hh"
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#include "serve-protocol.hh"
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#include "worker-protocol.hh"
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#include "store-api.hh"
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#include <iostream>
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#include <cstdlib>
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#include <unistd.h>
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using namespace nix;
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// !!! TODO:
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// * Respect more than the first host
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// * use a database
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// * show progress
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static std::pair<FdSink, FdSource> connect(const string & conn)
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{
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Pipe to, from;
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to.create();
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from.create();
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startProcess([&]() {
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if (dup2(to.readSide, STDIN_FILENO) == -1)
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throw SysError("dupping stdin");
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if (dup2(from.writeSide, STDOUT_FILENO) == -1)
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throw SysError("dupping stdout");
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restoreSignals();
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execlp("ssh", "ssh", "-x", "-T", conn.c_str(), "nix-store --serve", NULL);
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throw SysError("executing ssh");
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});
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// If child exits unexpectedly, we'll EPIPE or EOF early.
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// If we exit unexpectedly, child will EPIPE or EOF early.
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// So no need to keep track of it.
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return std::pair<FdSink, FdSource>(to.writeSide.borrow(), from.readSide.borrow());
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}
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static void substitute(std::pair<FdSink, FdSource> & pipes, Path storePath, Path destPath)
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{
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pipes.first << cmdDumpStorePath << storePath;
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pipes.first.flush();
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restorePath(destPath, pipes.second);
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std::cout << std::endl;
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}
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static void query(std::pair<FdSink, FdSource> & pipes)
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{
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for (string line; getline(std::cin, line);) {
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Strings tokenized = tokenizeString<Strings>(line);
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string cmd = tokenized.front();
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tokenized.pop_front();
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if (cmd == "have") {
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pipes.first
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<< cmdQueryValidPaths
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<< 0 // don't lock
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<< 0 // don't substitute
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<< tokenized;
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pipes.first.flush();
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PathSet paths = readStrings<PathSet>(pipes.second);
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for (auto & i : paths)
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std::cout << i << std::endl;
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} else if (cmd == "info") {
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pipes.first << cmdQueryPathInfos << tokenized;
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pipes.first.flush();
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while (1) {
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Path path = readString(pipes.second);
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if (path.empty()) break;
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assertStorePath(path);
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std::cout << path << std::endl;
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string deriver = readString(pipes.second);
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if (!deriver.empty()) assertStorePath(deriver);
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std::cout << deriver << std::endl;
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PathSet references = readStorePaths<PathSet>(pipes.second);
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std::cout << references.size() << std::endl;
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for (auto & i : references)
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std::cout << i << std::endl;
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std::cout << readLongLong(pipes.second) << std::endl;
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std::cout << readLongLong(pipes.second) << std::endl;
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}
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} else
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throw Error(format("unknown substituter query ‘%1%’") % cmd);
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std::cout << std::endl;
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}
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}
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int main(int argc, char * * argv)
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{
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return handleExceptions(argv[0], [&]() {
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if (argc < 2)
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throw UsageError("download-via-ssh requires an argument");
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initNix();
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settings.update();
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if (settings.sshSubstituterHosts.empty())
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return;
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std::cout << std::endl;
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/* Pass on the location of the daemon client's SSH
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authentication socket. */
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string sshAuthSock = settings.get("ssh-auth-sock", string(""));
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if (sshAuthSock != "") setenv("SSH_AUTH_SOCK", sshAuthSock.c_str(), 1);
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string host = settings.sshSubstituterHosts.front();
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std::pair<FdSink, FdSource> pipes = connect(host);
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/* Exchange the greeting */
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pipes.first << SERVE_MAGIC_1;
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pipes.first.flush();
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unsigned int magic = readInt(pipes.second);
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if (magic != SERVE_MAGIC_2)
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throw Error("protocol mismatch");
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readInt(pipes.second); // Server version, unused for now
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pipes.first << SERVE_PROTOCOL_VERSION;
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pipes.first.flush();
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string arg = argv[1];
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if (arg == "--query")
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query(pipes);
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else if (arg == "--substitute") {
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if (argc != 4)
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throw UsageError("download-via-ssh: --substitute takes exactly two arguments");
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Path storePath = argv[2];
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Path destPath = argv[3];
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printError(format("downloading ‘%1%’ via SSH from ‘%2%’...") % storePath % host);
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substitute(pipes, storePath, destPath);
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}
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else
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throw UsageError(format("download-via-ssh: unknown command ‘%1%’") % arg);
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});
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}
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@ -1,11 +0,0 @@
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programs += download-via-ssh
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download-via-ssh_DIR := $(d)
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download-via-ssh_SOURCES := $(d)/download-via-ssh.cc
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download-via-ssh_INSTALL_DIR := $(libexecdir)/nix/substituters
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download-via-ssh_CXXFLAGS = -Isrc/nix-store
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download-via-ssh_LIBS = libmain libstore libutil libformat
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