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commands.install.cpp
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#include <vcpkg/base/fwd/message_sinks.h>
#include <vcpkg/base/contractual-constants.h>
#include <vcpkg/base/files.h>
#include <vcpkg/base/hash.h>
#include <vcpkg/base/messages.h>
#include <vcpkg/base/system.debug.h>
#include <vcpkg/base/system.h>
#include <vcpkg/base/util.h>
#include <vcpkg/binarycaching.h>
#include <vcpkg/cmakevars.h>
#include <vcpkg/commands.build.h>
#include <vcpkg/commands.install.h>
#include <vcpkg/commands.remove.h>
#include <vcpkg/commands.set-installed.h>
#include <vcpkg/configuration.h>
#include <vcpkg/dependencies.h>
#include <vcpkg/documentation.h>
#include <vcpkg/input.h>
#include <vcpkg/installedpaths.h>
#include <vcpkg/metrics.h>
#include <vcpkg/paragraphs.h>
#include <vcpkg/portfileprovider.h>
#include <vcpkg/tools.h>
#include <vcpkg/vcpkgcmdarguments.h>
#include <vcpkg/vcpkglib.h>
#include <vcpkg/vcpkgpaths.h>
#include <vcpkg/xunitwriter.h>
#include <iterator>
namespace vcpkg
{
using file_pack = std::pair<std::string, std::string>;
InstallDir InstallDir::from_destination_root(const InstalledPaths& ip, Triplet t, const BinaryParagraph& pgh)
{
InstallDir dirs;
dirs.m_destination = ip.triplet_dir(t);
dirs.m_listfile = ip.listfile_path(pgh);
return dirs;
}
const Path& InstallDir::destination() const { return this->m_destination; }
const Path& InstallDir::listfile() const { return this->m_listfile; }
void install_package_and_write_listfile(const Filesystem& fs,
const Path& source_dir,
const InstallDir& destination_dir)
{
Checks::check_exit(VCPKG_LINE_INFO,
fs.exists(source_dir, IgnoreErrors{}),
Strings::concat("Source directory ", source_dir, "does not exist"));
auto files = fs.get_files_recursive(source_dir, VCPKG_LINE_INFO);
Util::erase_remove_if(files, [](Path& path) { return path.filename() == FileDotDsStore; });
install_files_and_write_listfile(fs, source_dir, files, destination_dir);
}
void install_files_and_write_listfile(const Filesystem& fs,
const Path& source_dir,
const std::vector<Path>& files,
const InstallDir& destination_dir)
{
std::vector<std::string> output;
const size_t prefix_length = source_dir.native().size();
const Path& destination = destination_dir.destination();
std::string destination_subdirectory = destination.filename().to_string();
const Path& listfile = destination_dir.listfile();
fs.create_directories(destination, VCPKG_LINE_INFO);
const auto listfile_parent = listfile.parent_path();
fs.create_directories(listfile_parent, VCPKG_LINE_INFO);
output.push_back(destination_subdirectory + "/");
for (auto&& file : files)
{
std::error_code ec;
const auto status = fs.symlink_status(file, ec);
if (ec)
{
msg::println_warning(format_filesystem_call_error(ec, "symlink_status", {file}));
continue;
}
const auto filename = file.filename();
if (vcpkg::is_regular_file(status) &&
(filename == "CONTROL" || filename == "vcpkg.json" || filename == "BUILD_INFO"))
{
// Do not copy the control file or manifest file
continue;
}
const auto suffix = file.generic_u8string().substr(prefix_length + 1);
const auto target = destination / suffix;
bool use_hard_link = true;
auto this_output = Strings::concat(destination_subdirectory, "/", suffix);
switch (status)
{
case FileType::directory:
{
fs.create_directory(target, ec);
if (ec)
{
msg::println_error(msgInstallFailed, msg::path = target, msg::error_msg = ec.message());
}
// Trailing backslash for directories
this_output.push_back('/');
output.push_back(std::move(this_output));
break;
}
case FileType::regular:
{
if (fs.exists(target, IgnoreErrors{}))
{
msg::println_warning(msgOverwritingFile, msg::path = target);
fs.remove_all(target, IgnoreErrors{});
}
if (use_hard_link)
{
fs.create_hard_link(file, target, ec);
if (ec)
{
Debug::println("Install from packages to installed: Fallback to copy "
"instead creating hard links because of: ",
ec.message());
use_hard_link = false;
}
}
if (!use_hard_link)
{
fs.copy_file(file, target, CopyOptions::overwrite_existing, ec);
}
if (ec)
{
msg::println_error(msgInstallFailed, msg::path = target, msg::error_msg = ec.message());
}
output.push_back(std::move(this_output));
break;
}
case FileType::symlink:
case FileType::junction:
{
if (fs.exists(target, IgnoreErrors{}))
{
msg::println_warning(msgOverwritingFile, msg::path = target);
}
fs.copy_symlink(file, target, ec);
if (ec)
{
msg::println_error(msgInstallFailed, msg::path = target, msg::error_msg = ec.message());
}
output.push_back(std::move(this_output));
break;
}
default: msg::println_error(msgInvalidFileType, msg::path = file); break;
}
}
std::sort(output.begin(), output.end());
fs.write_lines(listfile, output, VCPKG_LINE_INFO);
}
static std::vector<file_pack> extract_files_in_triplet(
const std::vector<StatusParagraphAndAssociatedFiles>& pgh_and_files,
Triplet triplet,
const size_t remove_chars = 0)
{
std::vector<file_pack> output;
for (const StatusParagraphAndAssociatedFiles& t : pgh_and_files)
{
if (t.pgh.package.spec.triplet() != triplet)
{
continue;
}
const std::string name = t.pgh.package.display_name();
for (const std::string& file : t.files)
{
output.emplace_back(file_pack{std::string(file, remove_chars), name});
}
}
std::sort(output.begin(), output.end(), [](const file_pack& lhs, const file_pack& rhs) {
return lhs.first < rhs.first;
});
return output;
}
static SortedVector<std::string> build_list_of_package_files(const ReadOnlyFilesystem& fs, const Path& package_dir)
{
std::vector<Path> package_file_paths = fs.get_files_recursive(package_dir, IgnoreErrors{});
Util::erase_remove_if(package_file_paths, [](Path& path) { return path.filename() == FileDotDsStore; });
const size_t package_remove_char_count = package_dir.native().size() + 1; // +1 for the slash
auto package_files = Util::fmap(package_file_paths, [package_remove_char_count](const Path& target) {
return std::string(target.generic_u8string(), package_remove_char_count);
});
return SortedVector<std::string>(std::move(package_files));
}
static SortedVector<file_pack> build_list_of_installed_files(
const std::vector<StatusParagraphAndAssociatedFiles>& pgh_and_files, Triplet triplet)
{
const size_t installed_remove_char_count = triplet.canonical_name().size() + 1; // +1 for the slash
std::vector<file_pack> installed_files =
extract_files_in_triplet(pgh_and_files, triplet, installed_remove_char_count);
return SortedVector<file_pack>(std::move(installed_files));
}
InstallResult install_package(const VcpkgPaths& paths, const BinaryControlFile& bcf, StatusParagraphs* status_db)
{
auto& fs = paths.get_filesystem();
const auto& installed = paths.installed();
const auto package_dir = paths.package_dir(bcf.core_paragraph.spec);
Triplet triplet = bcf.core_paragraph.spec.triplet();
const std::vector<StatusParagraphAndAssociatedFiles> pgh_and_files =
get_installed_files(fs, installed, *status_db);
const SortedVector<std::string> package_files = build_list_of_package_files(fs, package_dir);
const SortedVector<file_pack> installed_files = build_list_of_installed_files(pgh_and_files, triplet);
struct intersection_compare
{
bool operator()(const std::string& lhs, const file_pack& rhs) const
{
return Strings::case_insensitive_ascii_less(lhs, rhs.first);
}
bool operator()(const file_pack& lhs, const std::string& rhs) const
{
return Strings::case_insensitive_ascii_less(lhs.first, rhs);
}
};
std::vector<file_pack> intersection;
std::set_intersection(installed_files.begin(),
installed_files.end(),
package_files.begin(),
package_files.end(),
std::back_inserter(intersection),
intersection_compare());
std::sort(intersection.begin(), intersection.end(), [](const file_pack& lhs, const file_pack& rhs) {
return lhs.second < rhs.second;
});
if (!intersection.empty())
{
const auto triplet_install_path = installed.triplet_dir(triplet);
msg::println_error(msgConflictingFiles,
msg::path = triplet_install_path.generic_u8string(),
msg::spec = bcf.core_paragraph.spec);
auto i = intersection.begin();
while (i != intersection.end())
{
msg::println(msg::format(msgInstalledBy, msg::path = i->second).append_indent());
auto next =
std::find_if(i, intersection.end(), [i](const auto& val) { return i->second != val.second; });
msg::write_unlocalized_text(
Color::none, Strings::join("\n ", i, next, [](const file_pack& file) { return file.first; }));
msg::write_unlocalized_text(Color::none, "\n\n");
i = next;
}
return InstallResult::FILE_CONFLICTS;
}
StatusParagraph source_paragraph;
source_paragraph.package = bcf.core_paragraph;
source_paragraph.want = Want::INSTALL;
source_paragraph.state = InstallState::HALF_INSTALLED;
write_update(fs, installed, source_paragraph);
status_db->insert(std::make_unique<StatusParagraph>(source_paragraph));
std::vector<StatusParagraph> features_spghs;
for (auto&& feature : bcf.features)
{
StatusParagraph& feature_paragraph = features_spghs.emplace_back();
feature_paragraph.package = feature;
feature_paragraph.want = Want::INSTALL;
feature_paragraph.state = InstallState::HALF_INSTALLED;
write_update(fs, installed, feature_paragraph);
status_db->insert(std::make_unique<StatusParagraph>(feature_paragraph));
}
const InstallDir install_dir =
InstallDir::from_destination_root(paths.installed(), triplet, bcf.core_paragraph);
install_package_and_write_listfile(fs, package_dir, install_dir);
source_paragraph.state = InstallState::INSTALLED;
write_update(fs, installed, source_paragraph);
status_db->insert(std::make_unique<StatusParagraph>(source_paragraph));
for (auto&& feature_paragraph : features_spghs)
{
feature_paragraph.state = InstallState::INSTALLED;
write_update(fs, installed, feature_paragraph);
status_db->insert(std::make_unique<StatusParagraph>(feature_paragraph));
}
return InstallResult::SUCCESS;
}
static ExtendedBuildResult perform_install_plan_action(const VcpkgCmdArguments& args,
const VcpkgPaths& paths,
Triplet host_triplet,
const BuildPackageOptions& build_options,
const InstallPlanAction& action,
StatusParagraphs& status_db,
BinaryCache& binary_cache,
const IBuildLogsRecorder& build_logs_recorder)
{
auto& fs = paths.get_filesystem();
const InstallPlanType& plan_type = action.plan_type;
if (plan_type == InstallPlanType::ALREADY_INSTALLED)
{
if (action.use_head_version == UseHeadVersion::Yes)
msg::println(Color::warning, msgAlreadyInstalledNotHead, msg::spec = action.spec);
else
msg::println(Color::success, msgAlreadyInstalled, msg::spec = action.spec);
return ExtendedBuildResult{BuildResult::Succeeded};
}
bool all_dependencies_satisfied;
if (plan_type == InstallPlanType::BUILD_AND_INSTALL)
{
std::unique_ptr<BinaryControlFile> bcf;
if (binary_cache.is_restored(action))
{
auto maybe_bcf = Paragraphs::try_load_cached_package(
fs, action.package_dir.value_or_exit(VCPKG_LINE_INFO), action.spec);
bcf = std::make_unique<BinaryControlFile>(std::move(maybe_bcf).value_or_exit(VCPKG_LINE_INFO));
all_dependencies_satisfied = true;
}
else if (build_options.build_missing == BuildMissing::No)
{
return ExtendedBuildResult{BuildResult::CacheMissing};
}
else
{
msg::println(action.use_head_version == UseHeadVersion::Yes ? msgBuildingFromHead : msgBuildingPackage,
msg::spec = action.display_name());
auto result =
build_package(args, paths, host_triplet, build_options, action, build_logs_recorder, status_db);
if (BuildResult::Downloaded == result.code)
{
msg::println(Color::success, msgDownloadedSources, msg::spec = action.display_name());
return result;
}
all_dependencies_satisfied = result.unmet_dependencies.empty();
if (result.code != BuildResult::Succeeded)
{
LocalizedString warnings;
for (auto&& msg : action.build_failure_messages)
{
warnings.append(msg).append_raw('\n');
}
if (!warnings.data().empty())
{
msg::print(Color::warning, warnings);
}
msg::println_error(create_error_message(result, action.spec));
return result;
}
bcf = std::move(result.binary_control_file);
}
// Build or restore succeeded and `bcf` is populated with the control file.
Checks::check_exit(VCPKG_LINE_INFO, bcf != nullptr);
BuildResult code;
if (all_dependencies_satisfied)
{
const auto install_result = install_package(paths, *bcf, &status_db);
switch (install_result)
{
case InstallResult::SUCCESS: code = BuildResult::Succeeded; break;
case InstallResult::FILE_CONFLICTS: code = BuildResult::FileConflicts; break;
default: Checks::unreachable(VCPKG_LINE_INFO);
}
binary_cache.push_success(build_options.clean_packages, action);
}
else
{
Checks::check_exit(VCPKG_LINE_INFO, build_options.only_downloads == OnlyDownloads::Yes);
code = BuildResult::Downloaded;
}
if (build_options.clean_downloads == CleanDownloads::Yes)
{
for (auto& p : fs.get_regular_files_non_recursive(paths.downloads, IgnoreErrors{}))
{
fs.remove(p, VCPKG_LINE_INFO);
}
}
return {code, std::move(bcf)};
}
if (plan_type == InstallPlanType::EXCLUDED)
{
msg::println(Color::warning, msgExcludedPackage, msg::spec = action.spec);
return ExtendedBuildResult{BuildResult::Excluded};
}
Checks::unreachable(VCPKG_LINE_INFO);
}
static LocalizedString format_result_row(const SpecSummary& result)
{
return LocalizedString()
.append_indent()
.append_raw(result.get_spec().to_string())
.append_raw(": ")
.append(to_string(result.build_result.value_or_exit(VCPKG_LINE_INFO).code))
.append_raw(": ")
.append_raw(result.timing.to_string());
}
LocalizedString InstallSummary::format() const
{
LocalizedString to_print;
to_print.append(msgResultsHeader).append_raw('\n');
for (const SpecSummary& result : this->results)
{
to_print.append(format_result_row(result)).append_raw('\n');
}
to_print.append_raw('\n');
std::map<Triplet, BuildResultCounts> summary;
for (const SpecSummary& r : this->results)
{
summary[r.get_spec().triplet()].increment(r.build_result.value_or_exit(VCPKG_LINE_INFO).code);
}
for (auto&& entry : summary)
{
to_print.append(entry.second.format(entry.first));
}
return to_print;
}
void InstallSummary::print_failed() const
{
auto output = LocalizedString::from_raw("\n");
output.append(msgResultsHeader).append_raw('\n');
for (const SpecSummary& result : this->results)
{
if (result.build_result.value_or_exit(VCPKG_LINE_INFO).code != BuildResult::Succeeded)
{
output.append(format_result_row(result)).append_raw('\n');
}
}
output.append_raw('\n');
msg::print(output);
}
bool InstallSummary::failed() const
{
for (const auto& result : this->results)
{
switch (result.build_result.value_or_exit(VCPKG_LINE_INFO).code)
{
case BuildResult::Succeeded:
case BuildResult::Removed:
case BuildResult::Downloaded:
case BuildResult::Excluded: continue;
case BuildResult::BuildFailed:
case BuildResult::PostBuildChecksFailed:
case BuildResult::FileConflicts:
case BuildResult::CascadedDueToMissingDependencies:
case BuildResult::CacheMissing: return true;
default: Checks::unreachable(VCPKG_LINE_INFO);
}
}
return false;
}
struct TrackedPackageInstallGuard
{
SpecSummary& current_summary;
const ElapsedTimer build_timer;
TrackedPackageInstallGuard(const size_t action_index,
const size_t action_count,
std::vector<SpecSummary>& results,
const InstallPlanAction& action)
: current_summary(results.emplace_back(action)), build_timer()
{
msg::println(msgInstallingPackage,
msg::action_index = action_index,
msg::count = action_count,
msg::spec = action.display_name());
}
TrackedPackageInstallGuard(const size_t action_index,
const size_t action_count,
std::vector<SpecSummary>& results,
const RemovePlanAction& action)
: current_summary(results.emplace_back(action)), build_timer()
{
msg::println(msgRemovingPackage,
msg::action_index = action_index,
msg::count = action_count,
msg::spec = action.spec);
}
void print_elapsed_time() const
{
current_summary.timing = build_timer.elapsed();
msg::println(
msgElapsedForPackage, msg::spec = current_summary.get_spec(), msg::elapsed = current_summary.timing);
}
void print_abi_hash() const
{
auto bpgh = current_summary.get_binary_paragraph();
if (bpgh && !bpgh->abi.empty())
{
msg::println(msgPackageAbi, msg::spec = bpgh->display_name(), msg::package_abi = bpgh->abi);
}
}
~TrackedPackageInstallGuard()
{
print_elapsed_time();
print_abi_hash();
}
TrackedPackageInstallGuard(const TrackedPackageInstallGuard&) = delete;
TrackedPackageInstallGuard& operator=(const TrackedPackageInstallGuard&) = delete;
};
void install_preclear_packages(const VcpkgPaths& paths, const ActionPlan& action_plan)
{
auto& fs = paths.get_filesystem();
for (auto&& action : action_plan.remove_actions)
{
fs.remove_all(paths.package_dir(action.spec), VCPKG_LINE_INFO);
}
for (auto&& action : action_plan.install_actions)
{
fs.remove_all(action.package_dir.value_or_exit(VCPKG_LINE_INFO), VCPKG_LINE_INFO);
}
}
InstallSummary install_execute_plan(const VcpkgCmdArguments& args,
const VcpkgPaths& paths,
Triplet host_triplet,
const BuildPackageOptions& build_options,
const ActionPlan& action_plan,
StatusParagraphs& status_db,
BinaryCache& binary_cache,
const IBuildLogsRecorder& build_logs_recorder,
bool include_manifest_in_github_issue)
{
const ElapsedTimer timer;
std::vector<SpecSummary> results;
const size_t action_count = action_plan.remove_actions.size() + action_plan.install_actions.size();
size_t action_index = 1;
auto& fs = paths.get_filesystem();
for (auto&& action : action_plan.remove_actions)
{
TrackedPackageInstallGuard this_install(action_index++, action_count, results, action);
remove_package(fs, paths.installed(), action.spec, status_db);
results.back().build_result.emplace(BuildResult::Removed);
}
for (auto&& action : action_plan.already_installed)
{
results.emplace_back(action).build_result.emplace(perform_install_plan_action(
args, paths, host_triplet, build_options, action, status_db, binary_cache, build_logs_recorder));
}
for (auto&& action : action_plan.install_actions)
{
TrackedPackageInstallGuard this_install(action_index++, action_count, results, action);
auto result = perform_install_plan_action(
args, paths, host_triplet, build_options, action, status_db, binary_cache, build_logs_recorder);
if (result.code != BuildResult::Succeeded && build_options.keep_going == KeepGoing::No)
{
this_install.print_elapsed_time();
print_user_troubleshooting_message(action, paths, result.stdoutlog.then([&](auto&) -> Optional<Path> {
auto issue_body_path = paths.installed().root() / "vcpkg" / "issue_body.md";
paths.get_filesystem().write_contents(
issue_body_path,
create_github_issue(args, result, paths, action, include_manifest_in_github_issue),
VCPKG_LINE_INFO);
return issue_body_path;
}));
Checks::exit_fail(VCPKG_LINE_INFO);
}
this_install.current_summary.build_result.emplace(std::move(result));
}
msg::println(msgTotalInstallTime, msg::elapsed = timer.to_string());
return InstallSummary{std::move(results)};
}
static constexpr CommandSwitch INSTALL_SWITCHES[] = {
{SwitchDryRun, msgHelpTxtOptDryRun},
{SwitchHead, msgHelpTxtOptUseHeadVersion},
{SwitchNoDownloads, msgHelpTxtOptNoDownloads},
{SwitchOnlyDownloads, msgHelpTxtOptOnlyDownloads},
{SwitchOnlyBinarycaching, msgHelpTxtOptOnlyBinCache},
{SwitchRecurse, msgHelpTxtOptRecurse},
{SwitchKeepGoing, msgHelpTxtOptKeepGoing},
{SwitchEditable, msgHelpTxtOptEditable},
{SwitchXUseAria2, msgHelpTxtOptUseAria2},
{SwitchCleanAfterBuild, msgHelpTxtOptCleanAfterBuild},
{SwitchCleanBuildtreesAfterBuild, msgHelpTxtOptCleanBuildTreesAfterBuild},
{SwitchCleanPackagesAfterBuild, msgHelpTxtOptCleanPkgAfterBuild},
{SwitchCleanDownloadsAfterBuild, msgHelpTxtOptCleanDownloadsAfterBuild},
{SwitchXNoDefaultFeatures, msgHelpTxtOptManifestNoDefault},
{SwitchEnforcePortChecks, msgHelpTxtOptEnforcePortChecks},
{SwitchXProhibitBackcompatFeatures, {}},
{SwitchAllowUnsupported, msgHelpTxtOptAllowUnsupportedPort},
{SwitchNoPrintUsage, msgHelpTxtOptNoUsage},
};
static constexpr CommandSetting INSTALL_SETTINGS[] = {
{SwitchXXUnit, {}}, // internal use
{SwitchXWriteNuGetPackagesConfig, msgHelpTxtOptWritePkgConfig},
};
static constexpr CommandMultiSetting INSTALL_MULTISETTINGS[] = {
{SwitchXFeature, msgHelpTxtOptManifestFeature},
};
static std::vector<std::string> get_all_known_reachable_port_names_no_network(const VcpkgPaths& paths)
{
return paths.make_registry_set()->get_all_known_reachable_port_names_no_network().value_or_exit(
VCPKG_LINE_INFO);
}
constexpr CommandMetadata CommandInstallMetadata{
"install",
msgHelpInstallCommand,
{msgCmdInstallExample1,
"vcpkg install zlib zlib:x64-windows curl boost",
"vcpkg install --triplet x64-windows"},
"https://learn.microsoft.com/vcpkg/commands/install",
AutocompletePriority::Public,
0,
SIZE_MAX,
{INSTALL_SWITCHES, INSTALL_SETTINGS, INSTALL_MULTISETTINGS},
&get_all_known_reachable_port_names_no_network,
};
// These command metadata must share "critical" values (switches, number of arguments). They exist only to provide
// better example strings.
constexpr CommandMetadata CommandInstallMetadataClassic{
"install",
msgHelpInstallCommand,
{msgCmdInstallExample1, "vcpkg install zlib zlib:x64-windows curl boost"},
"https://learn.microsoft.com/vcpkg/commands/install",
AutocompletePriority::Public,
0,
SIZE_MAX,
{INSTALL_SWITCHES, INSTALL_SETTINGS, INSTALL_MULTISETTINGS},
&get_all_known_reachable_port_names_no_network,
};
constexpr CommandMetadata CommandInstallMetadataManifest{
"install",
msgHelpInstallCommand,
{msgCmdInstallExample1,
"vcpkg install zlib zlib:x64-windows curl boost",
"vcpkg install --triplet x64-windows"},
"https://learn.microsoft.com/vcpkg/commands/install",
AutocompletePriority::Public,
0,
SIZE_MAX,
{INSTALL_SWITCHES, INSTALL_SETTINGS, INSTALL_MULTISETTINGS},
nullptr,
};
void install_print_usage_information(const BinaryParagraph& bpgh,
std::set<std::string>& printed_usages,
const ReadOnlyFilesystem& fs,
const InstalledPaths& installed)
{
auto message = get_cmake_usage(fs, installed, bpgh).message;
if (!message.empty())
{
auto existing = printed_usages.lower_bound(message);
if (existing == printed_usages.end() || *existing != message)
{
msg::write_unlocalized_text(Color::none, message);
printed_usages.insert(existing, std::move(message));
}
}
}
static const char* find_skip_add_library(const char* real_first, const char* first, const char* last)
{
static constexpr StringLiteral ADD_LIBRARY_CALL = "add_library(";
for (;;)
{
first = Util::search(first, last, ADD_LIBRARY_CALL);
if (first == last)
{
return first;
}
if (first == real_first || !ParserBase::is_word_char(*(first - 1)))
{
return first + ADD_LIBRARY_CALL.size();
}
++first;
}
}
std::vector<std::string> get_cmake_add_library_names(StringView cmake_file)
{
constexpr static auto is_terminating_char = [](const char ch) {
return ch == ')' || ParserBase::is_whitespace(ch);
};
constexpr static auto is_forbidden_char = [](const char ch) {
return ch == '$' || ch == '"' || ch == '[' || ch == '#' || ch == ';' || ch == '<';
};
const auto real_first = cmake_file.begin();
auto first = real_first;
const auto last = cmake_file.end();
std::vector<std::string> res;
while (first != last)
{
const auto start_of_library_name = find_skip_add_library(real_first, first, last);
const auto end_of_library_name = std::find_if(start_of_library_name, last, is_terminating_char);
if (end_of_library_name != start_of_library_name &&
std::none_of(start_of_library_name, end_of_library_name, is_forbidden_char))
{
res.emplace_back(start_of_library_name, end_of_library_name);
}
first = end_of_library_name;
}
return res;
}
std::string get_cmake_find_package_name(StringView dirname, StringView filename)
{
static constexpr StringLiteral CASE_SENSITIVE_CONFIG_SUFFIX = "Config.cmake";
static constexpr StringLiteral CASE_INSENSITIVE_CONFIG_SUFFIX = "-config.cmake";
StringView res;
if (Strings::ends_with(filename, CASE_SENSITIVE_CONFIG_SUFFIX))
{
res = filename.substr(0, filename.size() - CASE_SENSITIVE_CONFIG_SUFFIX.size());
}
else if (Strings::ends_with(filename, CASE_INSENSITIVE_CONFIG_SUFFIX))
{
res = filename.substr(0, filename.size() - CASE_INSENSITIVE_CONFIG_SUFFIX.size());
}
if (!Strings::case_insensitive_ascii_equals(res, dirname.substr(0, res.size())))
{
res = {};
}
return std::string(res);
}
CMakeUsageInfo get_cmake_usage(const ReadOnlyFilesystem& fs,
const InstalledPaths& installed,
const BinaryParagraph& bpgh)
{
CMakeUsageInfo ret;
std::error_code ec;
auto usage_file = installed.usage_file(bpgh.spec);
if (fs.is_regular_file(usage_file))
{
ret.usage_file = true;
auto contents = fs.read_contents(usage_file, ec);
if (!ec)
{
ret.message = std::move(contents);
ret.message.push_back('\n');
}
return ret;
}
struct ConfigPackage
{
std::string dir;
std::string name;
};
auto maybe_files = fs.read_lines(installed.listfile_path(bpgh));
if (auto files = maybe_files.get())
{
std::vector<ConfigPackage> config_packages;
std::vector<Path> pkgconfig_files;
std::map<std::string, std::vector<std::string>> library_targets;
std::string header_path;
bool has_binaries = false;
static constexpr StringLiteral DOT_CMAKE = ".cmake";
static constexpr StringLiteral INCLUDE_PREFIX = "include/";
for (auto&& triplet_and_suffix : *files)
{
if (triplet_and_suffix.empty() || triplet_and_suffix.back() == '/') continue;
const auto first_slash = triplet_and_suffix.find("/");
if (first_slash == std::string::npos) continue;
const auto suffix = StringView(triplet_and_suffix).substr(first_slash + 1);
if (suffix.empty() || suffix[0] == 'd' /*ebug*/)
{
continue;
}
else if (Strings::starts_with(suffix, "share/") && Strings::ends_with(suffix, DOT_CMAKE))
{
const auto suffix_without_ending = suffix.substr(0, DOT_CMAKE.size());
if (Strings::ends_with(suffix_without_ending, "/vcpkg-port-config")) continue;
if (Strings::ends_with(suffix_without_ending, "/vcpkg-cmake-wrapper")) continue;
if (Strings::ends_with(suffix_without_ending, /*[Vv]*/ "ersion")) continue;
const auto filepath = installed.root() / triplet_and_suffix;
const auto parent_path = Path(filepath.parent_path());
if (!Strings::ends_with(parent_path.parent_path(), "/share"))
continue; // Ignore nested find modules, config, or helpers
if (Strings::contains(suffix_without_ending, "/Find")) continue;
const auto dirname = parent_path.filename().to_string();
const auto package_name = get_cmake_find_package_name(dirname, filepath.filename());
if (!package_name.empty())
{
// This heuristics works for one package name per dir.
if (!config_packages.empty() && config_packages.back().dir == dirname)
config_packages.back().name.clear();
else
config_packages.push_back({dirname, package_name});
}
const auto contents = fs.read_contents(filepath, ec);
if (!ec)
{
auto targets = get_cmake_add_library_names(contents);
if (!targets.empty())
{
auto& all_targets = library_targets[dirname];
all_targets.insert(all_targets.end(),
std::make_move_iterator(targets.begin()),
std::make_move_iterator(targets.end()));
}
}
}
else if (!has_binaries && Strings::starts_with(suffix, "bin/"))
{
has_binaries = true;
}
else if (Strings::ends_with(suffix, ".pc"))
{
if (Strings::contains(suffix, "pkgconfig"))
{
pkgconfig_files.push_back(installed.root() / triplet_and_suffix);
}
}
else if (Strings::starts_with(suffix, "lib/"))
{
has_binaries = true;
}
else if (header_path.empty() && Strings::starts_with(suffix, INCLUDE_PREFIX))
{
header_path = suffix.substr(INCLUDE_PREFIX.size()).to_string();
}
}
ret.header_only = !has_binaries && !header_path.empty();
// Post-process cmake config data
bool has_targets_for_output = false;
for (auto&& package : config_packages)
{
const auto library_target_it = library_targets.find(package.dir);
if (library_target_it == library_targets.end()) continue;
auto& targets = library_target_it->second;
if (!targets.empty())
{
if (!package.name.empty()) has_targets_for_output = true;
Util::sort_unique_erase(targets, [](const std::string& l, const std::string& r) {
if (l.size() < r.size()) return true;
if (l.size() > r.size()) return false;
return l < r;
});
static const auto is_namespaced = [](const std::string& target) {
return Strings::contains(target, "::");
};
if (Util::any_of(targets, is_namespaced))
{
Util::erase_remove_if(targets, [](const std::string& t) { return !is_namespaced(t); });
}
}
ret.cmake_targets_map[package.name] = std::move(targets);
}
if (has_targets_for_output)
{
auto msg = msg::format(msgCMakeTargetsUsage, msg::package_name = bpgh.spec.name()).append_raw("\n\n");
msg.append_indent().append(msgCMakeTargetsUsageHeuristicMessage).append_raw('\n');
for (auto&& package_targets_pair : ret.cmake_targets_map)
{
const auto& package_name = package_targets_pair.first;
if (package_name.empty()) continue;
const auto& targets = package_targets_pair.second;
if (targets.empty()) continue;
msg.append_indent();
msg.append_raw("find_package(").append_raw(package_name).append_raw(" CONFIG REQUIRED)\n");
const auto omitted = (targets.size() > 4) ? (targets.size() - 4) : 0;
if (omitted)
{
msg.append_indent()
.append_raw("# ")
.append_raw(NotePrefix)
.append(msgCmakeTargetsExcluded, msg::count = omitted)
.append_raw('\n');
}
msg.append_indent();
msg.append_raw("target_link_libraries(main PRIVATE ")
.append_raw(Strings::join(" ", targets.begin(), targets.end() - omitted))
.append_raw(")\n\n");
}
ret.message = msg.extract_data();
}
else if (ret.header_only)
{
static auto cmakeify = [](StringView name) {
auto n = Strings::ascii_to_uppercase(name);
Strings::inplace_replace_all(n, "-", "_");
if (n.empty() || ParserBase::is_ascii_digit(n[0]))
{
n.insert(n.begin(), '_');
}
return n;
};
const auto name = cmakeify(bpgh.spec.name());
auto msg = msg::format(msgHeaderOnlyUsage, msg::package_name = bpgh.spec.name()).append_raw("\n\n");
msg.append_indent()
.append_raw("find_path(")
.append_raw(name)
.append_raw("_INCLUDE_DIRS \"")
.append_raw(header_path)
.append_raw("\")\n");
msg.append_indent()
.append_raw("target_include_directories(main PRIVATE ${")
.append_raw(name)
.append_raw("_INCLUDE_DIRS})\n\n");
ret.message = msg.extract_data();
}
if (!pkgconfig_files.empty())
{
auto msg =
msg::format(msgCMakePkgConfigTargetsUsage, msg::package_name = bpgh.spec.name()).append_raw("\n\n");
for (auto&& path : pkgconfig_files)