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#include <cppgit2/diff.hpp>
#include <functional>
namespace cppgit2 {
diff::diff() : c_ptr_(nullptr), owner_(ownership::libgit2) {}
diff::diff(git_diff *c_ptr, ownership owner) : c_ptr_(c_ptr), owner_(owner) {}
diff::diff(const std::string &buffer) {
if (git_diff_from_buffer(&c_ptr_, buffer.c_str(), buffer.size()))
throw git_exception();
}
diff::~diff() {
if (c_ptr_ && owner_ == ownership::user)
git_diff_free(c_ptr_);
}
diff::delta diff::compare_files(const std::pair<blob, std::string> &old_file,
const std::pair<blob, std::string> &new_file,
diff::options options) {
delta result;
auto file_callback = [](const git_diff_delta *delta_c, float progress,
void *payload) {
auto result = (delta *)payload;
auto &result_c = result->c_struct_;
auto payload_c = (git_diff_delta *)delta_c;
// Copy result over into payload ptr for use outside
// this lambda function
result_c.flags = payload_c->flags;
result_c.new_file = payload_c->new_file;
result_c.old_file = payload_c->old_file;
result_c.nfiles = payload_c->nfiles;
result_c.similarity = payload_c->similarity;
result_c.status = payload_c->status;
return 0;
};
const char *old_as_path_c =
old_file.second.empty() ? nullptr : old_file.second.c_str();
const char *new_as_path_c =
new_file.second.empty() ? nullptr : new_file.second.c_str();
auto ret = git_diff_blobs(old_file.first.c_ptr(), old_as_path_c,
new_file.first.c_ptr(), new_as_path_c,
options.c_ptr_, file_callback, nullptr, nullptr,
nullptr, (void *)(&result));
if (ret)
throw git_exception();
return result;
}
const diff::delta diff::operator[](size_t index) const {
return diff::delta(git_diff_get_delta(c_ptr_, index));
}
bool diff::is_sorted_case_sensitive() const {
return git_diff_is_sorted_icase(c_ptr_);
}
void diff::merge(const diff &from) {
if (git_diff_merge(c_ptr_, from.c_ptr()))
throw git_exception();
}
size_t diff::size() const { return git_diff_num_deltas(c_ptr_); }
size_t diff::size(delta::type type) const {
return git_diff_num_deltas_of_type(c_ptr_, static_cast<git_delta_t>(type));
}
char diff::status_char(delta::type status) const {
return git_diff_status_char(static_cast<git_delta_t>(status));
}
std::string diff::to_string(diff::format format_type) const {
// TODO: Check this hardcoded size
data_buffer result;
if (git_diff_to_buf(result.c_ptr(), c_ptr_,
static_cast<git_diff_format_t>(format_type)))
throw git_exception();
return result.to_string();
}
const git_diff *diff::c_ptr() const { return c_ptr_; }
diff::stats diff::diff_stats() const {
diff::stats result(nullptr);
if (git_diff_get_stats(&result.c_ptr_, c_ptr_))
throw git_exception();
return result;
}
data_buffer diff::format_email(const format_email_options &options) {
data_buffer result;
if (git_diff_format_email(result.c_ptr(), c_ptr_, options.c_ptr()))
throw git_exception();
return result;
}
void diff::for_each(
std::function<void(const diff::delta &, float)> file_callback,
std::function<void(const diff::delta &, const diff::binary &)>
binary_callback,
std::function<void(const diff::delta &, const diff::hunk &)> hunk_callback,
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback) {
// Prepare wrapper to pass to C API
struct visitor_wrapper {
std::function<void(const diff::delta &, float)> file_callback;
std::function<void(const diff::delta &, const diff::binary &)>
binary_callback;
std::function<void(const diff::delta &, const diff::hunk &)> hunk_callback;
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback;
};
visitor_wrapper wrapper;
wrapper.file_callback = file_callback;
wrapper.binary_callback = binary_callback;
wrapper.hunk_callback = hunk_callback;
wrapper.line_callback = line_callback;
auto file_callback_c = [](const git_diff_delta *delta_c, float progress,
void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
wrapper->file_callback(delta(delta_c), progress);
return 0;
};
auto binary_callback_c = [](const git_diff_delta *delta_c,
const git_diff_binary *binary_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->binary_callback)
wrapper->binary_callback(delta(delta_c), binary(binary_c));
return 0;
};
auto hunk_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->hunk_callback)
wrapper->hunk_callback(delta(delta_c), hunk(hunk_c));
return 0;
};
auto line_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c,
const git_diff_line *line_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->line_callback)
wrapper->line_callback(delta(delta_c), hunk(hunk_c), line(line_c));
return 0;
};
if (git_diff_foreach(c_ptr_, file_callback_c, binary_callback_c,
hunk_callback_c, line_callback_c, (void *)(&wrapper)))
throw git_exception();
}
void diff::print(diff::format format,
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback) {
// Prepare wrapper to pass to C API
struct visitor_wrapper {
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback;
};
visitor_wrapper wrapper;
wrapper.line_callback = line_callback;
auto line_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c,
const git_diff_line *line_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->line_callback)
wrapper->line_callback(delta(delta_c), hunk(hunk_c), line(line_c));
return 0;
};
if (git_diff_print(c_ptr_, static_cast<git_diff_format_t>(format),
line_callback_c, (void *)(&wrapper)))
throw git_exception();
}
void diff::diff_blob_to_buffer(
const blob &old_blob, const std::string &old_as_path,
const char *new_buffer, size_t new_buffer_length,
const std::string &new_as_path, const diff::options &options,
std::function<void(const diff::delta &, float)> file_callback,
std::function<void(const diff::delta &, const diff::binary &)>
binary_callback,
std::function<void(const diff::delta &, const diff::hunk &)> hunk_callback,
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback) {
// Prepare wrapper to pass to C API
struct visitor_wrapper {
std::function<void(const diff::delta &, float)> file_callback;
std::function<void(const diff::delta &, const diff::binary &)>
binary_callback;
std::function<void(const diff::delta &, const diff::hunk &)> hunk_callback;
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback;
};
visitor_wrapper wrapper;
wrapper.file_callback = file_callback;
wrapper.binary_callback = binary_callback;
wrapper.hunk_callback = hunk_callback;
wrapper.line_callback = line_callback;
auto file_callback_c = [](const git_diff_delta *delta_c, float progress,
void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
wrapper->file_callback(delta(delta_c), progress);
return 0;
};
auto binary_callback_c = [](const git_diff_delta *delta_c,
const git_diff_binary *binary_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->binary_callback)
wrapper->binary_callback(delta(delta_c), binary(binary_c));
return 0;
};
auto hunk_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->hunk_callback)
wrapper->hunk_callback(delta(delta_c), hunk(hunk_c));
return 0;
};
auto line_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c,
const git_diff_line *line_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->line_callback)
wrapper->line_callback(delta(delta_c), hunk(hunk_c), line(line_c));
return 0;
};
if (git_diff_blob_to_buffer(old_blob.c_ptr(), old_as_path.c_str(), new_buffer,
new_buffer_length, new_as_path.c_str(),
options.c_ptr(), file_callback_c,
binary_callback_c, hunk_callback_c,
line_callback_c, (void *)(&wrapper)))
throw git_exception();
}
void diff::diff_between_buffers(
const void *old_buffer, size_t old_buffer_length,
const std::string &old_as_path, const void *new_buffer,
size_t new_buffer_length, const std::string &new_as_path,
const diff::options &options,
std::function<void(const diff::delta &, float)> file_callback,
std::function<void(const diff::delta &, const diff::binary &)>
binary_callback,
std::function<void(const diff::delta &, const diff::hunk &)> hunk_callback,
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback) {
// Prepare wrapper to pass to C API
struct visitor_wrapper {
std::function<void(const diff::delta &, float)> file_callback;
std::function<void(const diff::delta &, const diff::binary &)>
binary_callback;
std::function<void(const diff::delta &, const diff::hunk &)> hunk_callback;
std::function<void(const diff::delta &, const diff::hunk &,
const diff::line &)>
line_callback;
};
visitor_wrapper wrapper;
wrapper.file_callback = file_callback;
wrapper.binary_callback = binary_callback;
wrapper.hunk_callback = hunk_callback;
wrapper.line_callback = line_callback;
auto file_callback_c = [](const git_diff_delta *delta_c, float progress,
void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
wrapper->file_callback(delta(delta_c), progress);
return 0;
};
auto binary_callback_c = [](const git_diff_delta *delta_c,
const git_diff_binary *binary_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->binary_callback)
wrapper->binary_callback(delta(delta_c), binary(binary_c));
return 0;
};
auto hunk_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->hunk_callback)
wrapper->hunk_callback(delta(delta_c), hunk(hunk_c));
return 0;
};
auto line_callback_c = [](const git_diff_delta *delta_c,
const git_diff_hunk *hunk_c,
const git_diff_line *line_c, void *payload) {
auto wrapper = reinterpret_cast<visitor_wrapper *>(payload);
if (wrapper->line_callback)
wrapper->line_callback(delta(delta_c), hunk(hunk_c), line(line_c));
return 0;
};
if (git_diff_buffers(old_buffer, old_buffer_length, old_as_path.c_str(),
new_buffer, new_buffer_length, new_as_path.c_str(),
options.c_ptr(), file_callback_c, binary_callback_c,
hunk_callback_c, line_callback_c, (void *)(&wrapper)))
throw git_exception();
}
void diff::find_similar(const find_options &options) {
if (git_diff_find_similar(c_ptr_, options.c_ptr()))
throw git_exception();
}
oid diff::patchid(const patchid_options &options) {
oid result;
if (git_diff_patchid(result.c_ptr(), c_ptr_, options.c_ptr_))
throw git_exception();
return result;
}
} // namespace cppgit2