nix-super/src/libstore/common-ssh-store-config.cc
John Ericson 808082ea03 Ensure we can construct remote store configs in isolation
Progress towards #10766

I thought that #10768 achieved, but when I went to use this stuff (in
Hydra), turns out it did not. (Those `using FooConfig;` lines were not
working --- they are so finicky!) This PR gets the job done, and adds
some trivial unit tests to make sure I did what I intended.

I had to add add a header to expose `SSHStoreConfig`, after which the
preexisting `ssh-store-config.*` were very confusingly named files, so I
renamed them to `common-ssh-store-config.hh` to match the type defined
therein.
2024-07-15 17:32:49 -04:00

43 lines
1 KiB
C++

#include <regex>
#include "common-ssh-store-config.hh"
#include "ssh.hh"
namespace nix {
static std::string extractConnStr(std::string_view scheme, std::string_view _connStr)
{
if (_connStr.empty())
throw UsageError("`%s` store requires a valid SSH host as the authority part in Store URI", scheme);
std::string connStr{_connStr};
std::smatch result;
static std::regex v6AddrRegex("^((.*)@)?\\[(.*)\\]$");
if (std::regex_match(connStr, result, v6AddrRegex)) {
connStr = result[1].matched ? result.str(1) + result.str(3) : result.str(3);
}
return connStr;
}
CommonSSHStoreConfig::CommonSSHStoreConfig(std::string_view scheme, std::string_view host, const Params & params)
: StoreConfig(params)
, host(extractConnStr(scheme, host))
{
}
SSHMaster CommonSSHStoreConfig::createSSHMaster(bool useMaster, Descriptor logFD)
{
return {
host,
sshKey.get(),
sshPublicHostKey.get(),
useMaster,
compress,
logFD,
};
}
}