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Improvements of Install script

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This commit is contained in:
Alexey Milovidov 2020-11-26 04:44:26 +03:00
parent fb3a69b298
commit e89d1632a1
1 changed files with 78 additions and 42 deletions
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120
programs/install/Install.cpp
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@ -21,6 +21,7 @@
#include <IO/WriteBufferFromFileDescriptor.h>
#include <IO/ReadBufferFromFile.h>
#include <IO/WriteBufferFromFile.h>
#include <IO/MMapReadBufferFromFile.h>
#include <IO/ReadBufferFromMemory.h>
#include <IO/copyData.h>
#include <IO/Operators.h>
@ -70,7 +71,7 @@ namespace po = boost::program_options;
namespace fs = std::filesystem;
auto executeScript(const std::string & command, bool throw_on_error = false)
static auto executeScript(const std::string & command, bool throw_on_error = false)
{
auto sh = ShellCommand::execute(command);
WriteBufferFromFileDescriptor wb_stdout(STDOUT_FILENO);
@ -87,7 +88,7 @@ auto executeScript(const std::string & command, bool throw_on_error = false)
return sh->tryWait();
}
bool ask(std::string question)
static bool ask(std::string question)
{
while (true)
{
@ -104,6 +105,17 @@ bool ask(std::string question)
}
}
static bool filesEqual(std::string path1, std::string path2)
{
MMapReadBufferFromFile in1(path1, 0);
MMapReadBufferFromFile in2(path2, 0);
/// memcmp is faster than hashing and comparing hashes
return in1.buffer().size() == in2.buffer().size()
&& 0 == memcmp(in1.buffer().begin(), in2.buffer().begin(), in1.buffer().size());
}
int mainEntryClickHouseInstall(int argc, char ** argv)
{
@ -143,58 +155,86 @@ int mainEntryClickHouseInstall(int argc, char ** argv)
throw Exception(ErrorCodes::FILE_DOESNT_EXIST, "Cannot obtain path to the binary from {}, file doesn't exist",
binary_self_path.string());
fs::path binary_self_canonical_path = fs::canonical(binary_self_path);
/// Copy binary to the destination directory.
/// TODO An option to link instead of copy - useful for developers.
/// TODO Check if the binary is the same.
size_t binary_size = fs::file_size(binary_self_path);
fs::path prefix = fs::path(options["prefix"].as<std::string>());
fs::path bin_dir = prefix / fs::path(options["binary-path"].as<std::string>());
size_t available_space = fs::space(bin_dir).available;
if (available_space < binary_size)
throw Exception(ErrorCodes::NOT_ENOUGH_SPACE, "Not enough space for clickhouse binary in {}, required {}, available {}.",
bin_dir.string(), ReadableSize(binary_size), ReadableSize(available_space));
fs::path main_bin_path = bin_dir / "clickhouse";
fs::path main_bin_tmp_path = bin_dir / "clickhouse.new";
fs::path main_bin_old_path = bin_dir / "clickhouse.old";
fmt::print("Copying ClickHouse binary to {}\n", main_bin_tmp_path.string());
size_t binary_size = fs::file_size(binary_self_path);
try
/// Check if the binary is the same file (already installed).
bool old_binary_exists = fs::exists(main_bin_path);
if (old_binary_exists && binary_self_canonical_path == fs::canonical(main_bin_path))
{
ReadBufferFromFile in(binary_self_path.string());
WriteBufferFromFile out(main_bin_tmp_path.string());
copyData(in, out);
out.sync();
fmt::print("ClickHouse binary is already located at {}\n", main_bin_path.string());
if (0 != fchmod(out.getFD(), S_IRUSR | S_IRGRP | S_IROTH | S_IXUSR | S_IXGRP | S_IXOTH))
throwFromErrno(fmt::format("Cannot chmod {}", main_bin_tmp_path.string()), ErrorCodes::SYSTEM_ERROR);
out.finalize();
if (0 != chmod(main_bin_path.string().c_str(), S_IRUSR | S_IRGRP | S_IROTH | S_IXUSR | S_IXGRP | S_IXOTH))
throwFromErrno(fmt::format("Cannot chmod {}", main_bin_path.string()), ErrorCodes::SYSTEM_ERROR);
}
catch (const Exception & e)
else
{
if (e.code() == ErrorCodes::CANNOT_OPEN_FILE && geteuid() != 0)
std::cerr << "Install must be run as root: sudo ./clickhouse install\n";
throw;
/// Check if binary has the same content.
if (old_binary_exists
&& binary_size == fs::file_size(main_bin_path)
&& filesEqual(binary_self_path.string(), main_bin_path.string()))
{
fmt::print("ClickHouse binary is already located at {} and it has the same content as {}\n",
main_bin_path.string(), binary_self_canonical_path.string());
if (0 != chmod(main_bin_path.string().c_str(), S_IRUSR | S_IRGRP | S_IROTH | S_IXUSR | S_IXGRP | S_IXOTH))
throwFromErrno(fmt::format("Cannot chmod {}", main_bin_path.string()), ErrorCodes::SYSTEM_ERROR);
}
else
{
size_t available_space = fs::space(bin_dir).available;
if (available_space < binary_size)
throw Exception(ErrorCodes::NOT_ENOUGH_SPACE, "Not enough space for clickhouse binary in {}, required {}, available {}.",
bin_dir.string(), ReadableSize(binary_size), ReadableSize(available_space));
fmt::print("Copying ClickHouse binary to {}\n", main_bin_tmp_path.string());
try
{
ReadBufferFromFile in(binary_self_path.string());
WriteBufferFromFile out(main_bin_tmp_path.string());
copyData(in, out);
out.sync();
if (0 != fchmod(out.getFD(), S_IRUSR | S_IRGRP | S_IROTH | S_IXUSR | S_IXGRP | S_IXOTH))
throwFromErrno(fmt::format("Cannot chmod {}", main_bin_tmp_path.string()), ErrorCodes::SYSTEM_ERROR);
out.finalize();
}
catch (const Exception & e)
{
if (e.code() == ErrorCodes::CANNOT_OPEN_FILE && geteuid() != 0)
std::cerr << "Install must be run as root: sudo ./clickhouse install\n";
throw;
}
if (old_binary_exists)
{
fmt::print("{} already exists, will rename existing binary to {} and put the new binary in place\n",
main_bin_path.string(), main_bin_old_path.string());
/// There is file exchange operation in Linux but it's not portable.
fs::rename(main_bin_path, main_bin_old_path);
}
fmt::print("Renaming {} to {}.\n", main_bin_tmp_path.string(), main_bin_path.string());
fs::rename(main_bin_tmp_path, main_bin_path);
}
}
if (fs::exists(main_bin_path))
{
fmt::print("{} already exists, will rename existing binary to {} and put the new binary in place\n",
main_bin_path.string(), main_bin_old_path.string());
/// There is file exchange operation in Linux but it's not portable.
fs::rename(main_bin_path, main_bin_old_path);
}
fmt::print("Renaming {} to {}.\n", main_bin_tmp_path.string(), main_bin_path.string());
fs::rename(main_bin_tmp_path, main_bin_path);
/// Create symlinks.
std::initializer_list<const char *> tools
@ -597,10 +637,6 @@ int mainEntryClickHouseInstall(int argc, char ** argv)
}
}
std::string maybe_sudo;
if (getuid() != 0)
maybe_sudo = "sudo ";
std::string maybe_password;
if (has_password_for_default_user)
maybe_password = " --password";
@ -608,10 +644,10 @@ int mainEntryClickHouseInstall(int argc, char ** argv)
fmt::print(
"\nClickHouse has been successfully installed.\n"
"\nStart clickhouse-server with:\n"
" {}clickhouse start\n"
" sudo clickhouse start\n"
"\nStart clickhouse-client with:\n"
" clickhouse-client{}\n\n",
maybe_sudo, maybe_password);
maybe_password);
}
catch (...)
{