vcpkg/toolsrc/src/vcpkglib.cpp
2017-04-28 12:55:50 -07:00

243 lines
9.1 KiB
C++

#include "pch.h"
#include "Paragraphs.h"
#include "metrics.h"
#include "vcpkg_Files.h"
#include "vcpkg_Strings.h"
#include "vcpkg_Util.h"
#include "vcpkglib.h"
namespace vcpkg
{
bool g_debugging = false;
static StatusParagraphs load_current_database(Files::Filesystem& fs,
const fs::path& vcpkg_dir_status_file,
const fs::path& vcpkg_dir_status_file_old)
{
if (!fs.exists(vcpkg_dir_status_file))
{
if (!fs.exists(vcpkg_dir_status_file_old))
{
// no status file, use empty db
return StatusParagraphs();
}
fs.rename(vcpkg_dir_status_file_old, vcpkg_dir_status_file);
}
auto pghs = Paragraphs::get_paragraphs(fs, vcpkg_dir_status_file).value_or_exit(VCPKG_LINE_INFO);
std::vector<std::unique_ptr<StatusParagraph>> status_pghs;
for (auto&& p : pghs)
{
status_pghs.push_back(std::make_unique<StatusParagraph>(p));
}
return StatusParagraphs(std::move(status_pghs));
}
StatusParagraphs database_load_check(const VcpkgPaths& paths)
{
auto& fs = paths.get_filesystem();
auto updates_dir = paths.vcpkg_dir_updates;
std::error_code ec;
fs.create_directory(paths.installed, ec);
fs.create_directory(paths.vcpkg_dir, ec);
fs.create_directory(paths.vcpkg_dir_info, ec);
fs.create_directory(updates_dir, ec);
const fs::path& status_file = paths.vcpkg_dir_status_file;
const fs::path status_file_old = status_file.parent_path() / "status-old";
const fs::path status_file_new = status_file.parent_path() / "status-new";
StatusParagraphs current_status_db = load_current_database(fs, status_file, status_file_old);
auto update_files = fs.get_files_non_recursive(updates_dir);
if (update_files.empty())
{
// updates directory is empty, control file is up-to-date.
return current_status_db;
}
for (auto&& file : update_files)
{
if (!fs.is_regular_file(file)) continue;
if (file.filename() == "incomplete") continue;
auto pghs = Paragraphs::get_paragraphs(fs, file).value_or_exit(VCPKG_LINE_INFO);
for (auto&& p : pghs)
{
current_status_db.insert(std::make_unique<StatusParagraph>(p));
}
}
fs.write_contents(status_file_new, Strings::serialize(current_status_db));
fs.rename(status_file_new, status_file);
for (auto&& file : update_files)
{
if (!fs.is_regular_file(file)) continue;
fs.remove(file);
}
return current_status_db;
}
void write_update(const VcpkgPaths& paths, const StatusParagraph& p)
{
static int update_id = 0;
auto& fs = paths.get_filesystem();
auto my_update_id = update_id++;
auto tmp_update_filename = paths.vcpkg_dir_updates / "incomplete";
auto update_filename = paths.vcpkg_dir_updates / std::to_string(my_update_id);
fs.write_contents(tmp_update_filename, Strings::serialize(p));
fs.rename(tmp_update_filename, update_filename);
}
static void upgrade_to_slash_terminated_sorted_format(Files::Filesystem& fs,
std::vector<std::string>* lines,
const fs::path& listfile_path)
{
static bool was_tracked = false;
if (lines->empty())
{
return;
}
if (lines->at(0).back() == '/')
{
return; // File already in the new format
}
if (!was_tracked)
{
was_tracked = true;
Metrics::track_property("listfile", "update to new format");
}
// The files are sorted such that directories are placed just before the files they contain
// (They are not necessarily sorted alphabetically, e.g. libflac)
// Therefore we can detect the entries that represent directories by comparing every element with the next one
// and checking if the next has a slash immediately after the current one's length
for (size_t i = 0; i < lines->size() - 1; i++)
{
std::string& current_string = lines->at(i);
const std::string& next_string = lines->at(i + 1);
const size_t potential_slash_char_index = current_string.length();
// Make sure the index exists first
if (next_string.size() > potential_slash_char_index && next_string.at(potential_slash_char_index) == '/')
{
current_string += '/'; // Mark as a directory
}
}
// After suffixing the directories with a slash, we can now sort.
// We cannot sort before adding the suffixes because the following (actual example):
/*
x86-windows/include/FLAC <<<<<< This would be separated from its group due to sorting
x86-windows/include/FLAC/all.h
x86-windows/include/FLAC/assert.h
x86-windows/include/FLAC/callback.h
x86-windows/include/FLAC++
x86-windows/include/FLAC++/all.h
x86-windows/include/FLAC++/decoder.h
x86-windows/include/FLAC++/encoder.h
*
x86-windows/include/FLAC/ <<<<<< This will now be kept with its group when sorting
x86-windows/include/FLAC/all.h
x86-windows/include/FLAC/assert.h
x86-windows/include/FLAC/callback.h
x86-windows/include/FLAC++/
x86-windows/include/FLAC++/all.h
x86-windows/include/FLAC++/decoder.h
x86-windows/include/FLAC++/encoder.h
*/
// Note that after sorting, the FLAC++/ group will be placed before the FLAC/ group
// The new format is lexicographically sorted
std::sort(lines->begin(), lines->end());
// Replace the listfile on disk
const fs::path updated_listfile_path = listfile_path.generic_string() + "_updated";
fs.write_lines(updated_listfile_path, *lines);
fs.rename(updated_listfile_path, listfile_path);
}
std::vector<StatusParagraph*> get_installed_ports(const StatusParagraphs& status_db)
{
std::vector<StatusParagraph*> installed_packages;
for (auto&& pgh : status_db)
{
if (pgh->state != InstallState::INSTALLED || pgh->want != Want::INSTALL) continue;
installed_packages.push_back(pgh.get());
}
return installed_packages;
}
std::vector<StatusParagraphAndAssociatedFiles> get_installed_files(const VcpkgPaths& paths,
const StatusParagraphs& status_db)
{
auto& fs = paths.get_filesystem();
std::vector<StatusParagraphAndAssociatedFiles> installed_files;
for (const std::unique_ptr<StatusParagraph>& pgh : status_db)
{
if (pgh->state != InstallState::INSTALLED)
{
continue;
}
const fs::path listfile_path = paths.listfile_path(pgh->package);
std::vector<std::string> installed_files_of_current_pgh =
fs.read_lines(listfile_path).value_or_exit(VCPKG_LINE_INFO);
Strings::trim_all_and_remove_whitespace_strings(&installed_files_of_current_pgh);
upgrade_to_slash_terminated_sorted_format(fs, &installed_files_of_current_pgh, listfile_path);
// Remove the directories
Util::erase_remove_if(installed_files_of_current_pgh,
[](const std::string& file) { return file.back() == '/'; });
StatusParagraphAndAssociatedFiles pgh_and_files = {
*pgh, SortedVector<std::string>(std::move(installed_files_of_current_pgh))};
installed_files.push_back(std::move(pgh_and_files));
}
return installed_files;
}
CMakeVariable::CMakeVariable(const CWStringView varname, const wchar_t* varvalue)
: s(Strings::wformat(LR"("-D%s=%s")", varname, varvalue))
{
}
CMakeVariable::CMakeVariable(const CWStringView varname, const std::string& varvalue)
: CMakeVariable(varname, Strings::utf8_to_utf16(varvalue).c_str())
{
}
CMakeVariable::CMakeVariable(const CWStringView varname, const std::wstring& varvalue)
: CMakeVariable(varname, varvalue.c_str())
{
}
CMakeVariable::CMakeVariable(const CWStringView varname, const fs::path& path)
: CMakeVariable(varname, path.generic_wstring())
{
}
std::wstring make_cmake_cmd(const fs::path& cmake_exe,
const fs::path& cmake_script,
const std::vector<CMakeVariable>& pass_variables)
{
std::wstring cmd_cmake_pass_variables = Strings::join(L" ", pass_variables, [](auto&& v) { return v.s; });
return Strings::wformat(
LR"("%s" %s -P "%s")", cmake_exe.native(), cmd_cmake_pass_variables, cmake_script.generic_wstring());
}
}