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[pre-install checks] Greatly improve the check for already isntalled

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This commit is contained in:
Alexander Karatarakis 2016-12-01 17:22:20 -08:00
parent 4d298be260
commit a8c189c3f2
1 changed files with 45 additions and 31 deletions
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76
toolsrc/src/commands_installation.cpp
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@ -128,53 +128,67 @@ namespace vcpkg
listfile.close();
}
static std::map<std::string, fs::path> remove_first_n_chars_and_map(const std::vector<fs::path> absolute_paths, const size_t n)
static void remove_first_n_chars(std::vector<std::string>* strings, const size_t n)
{
std::map<std::string, fs::path> output;
for (const fs::path& absolute_path : absolute_paths)
for (std::string& s : *strings)
{
std::string suffix = absolute_path.generic_string();
suffix.erase(0, n);
output.emplace(suffix, absolute_path);
s.erase(0, n);
}
};
static std::vector<std::string> extract_files_in_triplet(const std::vector<StatusParagraph_and_associated_files>& pgh_and_files, const triplet& triplet)
{
std::vector<std::string> output;
for (const StatusParagraph_and_associated_files& t : pgh_and_files)
{
if (t.pgh.package.spec.target_triplet() != triplet)
{
continue;
}
output.insert(output.end(), t.files.cbegin(), t.files.cend());
}
std::sort(output.begin(), output.end());
return output;
}
static void print_map_values(const std::vector<std::string> keys, const std::map<std::string, fs::path>& map)
{
System::println("");
for (const std::string& key : keys)
{
System::println(" %s", map.at(key).generic_string());
}
System::println("");
}
static void install_package(const vcpkg_paths& paths, const BinaryParagraph& binary_paragraph, StatusParagraphs& status_db)
void install_package(const vcpkg_paths& paths, const BinaryParagraph& binary_paragraph, StatusParagraphs& status_db)
{
const fs::path package_dir = paths.package_dir(binary_paragraph.spec);
const std::vector<fs::path> package_files = Files::recursive_find_all_files_in_dir(package_dir);
const std::vector<fs::path> package_file_paths = Files::recursive_find_all_files_in_dir(package_dir);
std::vector<std::string> package_files;
const size_t package_remove_char_count = package_dir.generic_string().size() + 1; // +1 for the slash
std::transform(package_file_paths.cbegin(), package_file_paths.cend(), std::back_inserter(package_files), [package_remove_char_count](const fs::path& path)
{
return path.generic_string().erase(0, package_remove_char_count);
});
std::sort(package_files.begin(), package_files.end());
const fs::path installed_dir = paths.installed / binary_paragraph.spec.target_triplet().canonical_name();
const std::vector<fs::path> installed_files = Files::recursive_find_all_files_in_dir(installed_dir);
const std::map<std::string, fs::path> package_files_relative_paths_to_absolute_paths = remove_first_n_chars_and_map(package_files, package_dir.generic_string().size() + 1);
const std::map<std::string, fs::path> installed_files_relative_paths_to_absolute_paths = remove_first_n_chars_and_map(installed_files, installed_dir.generic_string().size() + 1);
const std::vector<std::string> package_files_set = Maps::extract_keys(package_files_relative_paths_to_absolute_paths);
const std::vector<std::string> installed_files_set = Maps::extract_keys(installed_files_relative_paths_to_absolute_paths);
const std::vector<StatusParagraph_and_associated_files>& pgh_and_files = get_installed_files(paths, status_db);
const triplet& triplet = binary_paragraph.spec.target_triplet();
std::vector<std::string> installed_files = extract_files_in_triplet(pgh_and_files, triplet);
const size_t installed_remove_char_count = triplet.canonical_name().size() + 1; // +1 for the slash
remove_first_n_chars(&installed_files, installed_remove_char_count);
std::sort(installed_files.begin(), installed_files.end());
std::vector<std::string> intersection;
std::set_intersection(package_files_set.cbegin(), package_files_set.cend(),
installed_files_set.cbegin(), installed_files_set.cend(),
std::set_intersection(package_files.cbegin(), package_files.cend(),
installed_files.cbegin(), installed_files.cend(),
std::back_inserter(intersection));
if (!intersection.empty())
{
System::println(System::color::error, "The following files are already installed and are in conflict with %s:", binary_paragraph.spec);
print_map_values(intersection, installed_files_relative_paths_to_absolute_paths);
const fs::path triplet_install_path = paths.installed / triplet.canonical_name();
System::println(System::color::error, "The following files are already installed in %s and are in conflict with %s",
triplet_install_path.generic_string(),
binary_paragraph.spec);
System::println("");
for (const std::string& s : intersection)
{
System::println(" %s", s);
}
System::println("");
exit(EXIT_FAILURE);
}