git2cpp/src/wrapper/repository_wrapper.cpp at main · QuantStack/git2cpp · GitHub

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#include "../wrapper/repository_wrapper.hpp"

#include <algorithm>

#include <fstream>

#include <iostream>

#include "../utils/config_overrides.hpp"

#include "../utils/git_exception.hpp"

#include "../wrapper/commit_wrapper.hpp"

#include "../wrapper/config_wrapper.hpp"

#include "../wrapper/diff_wrapper.hpp"

#include "../wrapper/index_wrapper.hpp"

#include "../wrapper/object_wrapper.hpp"

#include "../wrapper/remote_wrapper.hpp"

repository_wrapper::~repository_wrapper()

{

git_repository_free(p_resource);

p_resource = nullptr;

}

repository_wrapper repository_wrapper::open(std::string_view directory)

{

repository_wrapper rw;

throw_if_error(git_repository_open(&(rw.p_resource), directory.data()));

apply_config_overrides(rw.p_resource);

return rw;

}

repository_wrapper repository_wrapper::init(std::string_view directory, bool bare)

{

repository_wrapper rw;

throw_if_error(git_repository_init(&(rw.p_resource), directory.data(), bare));

apply_config_overrides(rw.p_resource);

return rw;

}

repository_wrapper repository_wrapper::init_ext(std::string_view directory, git_repository_init_options* opts)

{

repository_wrapper rw;

throw_if_error(git_repository_init_ext(&(rw.p_resource), directory.data(), opts));

apply_config_overrides(rw.p_resource);

return rw;

}

repository_wrapper

repository_wrapper::clone(std::string_view url, std::string_view path, const git_clone_options& opts)

{

repository_wrapper rw;

throw_if_error(git_clone(&(rw.p_resource), url.data(), path.data(), &opts));

apply_config_overrides(rw.p_resource);

return rw;

}

std::string repository_wrapper::path() const

{

return git_repository_path(*this);

}

git_repository_state_t repository_wrapper::state() const

{

return git_repository_state_t(git_repository_state(*this));

}

void repository_wrapper::state_cleanup()

{

throw_if_error(git_repository_state_cleanup(*this));

}

bool repository_wrapper::is_bare() const

{

return git_repository_is_bare(*this);

}

bool repository_wrapper::is_shallow() const

{

return git_repository_is_shallow(*this);

}

revwalk_wrapper repository_wrapper::new_walker()

{

git_revwalk* walker;

throw_if_error(git_revwalk_new(&walker, *this));

return revwalk_wrapper(walker);

}

bool repository_wrapper::does_track(std::string_view path) const

{

unsigned int flags;

throw_if_error(git_status_file(&flags, *this, path.data()));

return !(flags & GIT_STATUS_WT_NEW) && !(flags & GIT_STATUS_IGNORED);

}

// Head

bool repository_wrapper::is_head_unborn() const

{

return git_repository_head_unborn(*this) == 1;

}

reference_wrapper repository_wrapper::head() const

{

git_reference* ref;

throw_if_error(git_repository_head(&ref, *this));

return reference_wrapper(ref);

}

std::string repository_wrapper::head_short_name() const

{

git_reference* ref;

std::string name;

throw_if_error(git_reference_lookup(&ref, *this, "HEAD"));

if (git_reference_type(ref) == GIT_REFERENCE_DIRECT)

{

name = git_reference_shorthand(ref);

}

else

{

name = git_reference_symbolic_target(ref);

name = name.substr(name.find_last_of('/') + 1);

}

git_reference_free(ref);

return name;

}

// References

reference_wrapper repository_wrapper::find_reference(std::string_view ref_name) const

{

git_reference* ref;

throw_if_error(git_reference_lookup(&ref, *this, ref_name.data()));

return reference_wrapper(ref);

}

std::optional<reference_wrapper> repository_wrapper::find_reference_dwim(std::string_view ref_name) const

{

git_reference* ref;

int rc = git_reference_dwim(&ref, *this, ref_name.data());

return rc == 0 ? std::make_optional(reference_wrapper(ref)) : std::nullopt;

}

std::vector<std::string> repository_wrapper::refs_list() const

{

git_strarray refs = {0};

throw_if_error(git_reference_list(&refs, *this));

std::vector<std::string> result;

for (size_t i = 0; i < refs.count; ++i)

{

result.push_back(refs.strings[i]);

}

git_strarray_free(&refs);

return result;

}

const git_oid repository_wrapper::ref_name_to_id(std::string ref_name) const

{

git_oid ref_id;

throw_if_error(git_reference_name_to_id(&ref_id, *this, ref_name.c_str()));

return ref_id;

}

// Index

index_wrapper repository_wrapper::make_index()

{

index_wrapper index = index_wrapper::init(*this);

return index;

}

// Branches

branch_wrapper repository_wrapper::create_branch(std::string_view name, bool force)

{

return create_branch(name, find_commit(), force);

}

branch_wrapper

repository_wrapper::create_branch(std::string_view name, const commit_wrapper& commit, bool force)

{

git_reference* branch = nullptr;

throw_if_error(git_branch_create(&branch, *this, name.data(), commit, force));

return branch_wrapper(branch);

}

branch_wrapper

repository_wrapper::create_branch(std::string_view name, const annotated_commit_wrapper& commit, bool force)

{

git_reference* branch = nullptr;

throw_if_error(git_branch_create_from_annotated(&branch, *this, name.data(), commit, force));

return branch_wrapper(branch);

}

branch_wrapper repository_wrapper::find_branch(std::string_view name) const

{

git_reference* branch = nullptr;

throw_if_error(git_branch_lookup(&branch, *this, name.data(), GIT_BRANCH_LOCAL));

return branch_wrapper(branch);

}

branch_iterator repository_wrapper::iterate_branches(git_branch_t type) const

{

git_branch_iterator* iter = nullptr;

throw_if_error(git_branch_iterator_new(&iter, *this, type));

return branch_iterator(iter);

}

std::optional<reference_wrapper> repository_wrapper::upstream() const

{

git_reference* ref;

reference_wrapper head = this->head();

int error = git_branch_upstream(&ref, head);

if (error == 0)

{

return reference_wrapper(ref);

}

else

{

return std::nullopt;

}

std::optional<std::string> repository_wrapper::branch_upstream_name(std::string local_branch) const

{

git_buf buf = GIT_BUF_INIT;

int error = git_branch_upstream_name(&buf, *this, local_branch.c_str());

if (error != 0)

{

git_buf_dispose(&buf);

return std::nullopt;

}

std::string result(buf.ptr ? buf.ptr : "");

git_buf_dispose(&buf);

return result;

}

branch_tracking_info repository_wrapper::get_tracking_info() const

{

branch_tracking_info info;

info.has_upstream = false;

info.ahead = 0;

info.behind = 0;

info.upstream_name = "";

if (this->is_head_unborn())

{

return info;

}

reference_wrapper head = this->head();

std::optional<reference_wrapper> upstream = this->upstream();

if (upstream)

{

info.has_upstream = true;

info.upstream_name = upstream.value().short_name();

auto local_oid = head.target();

auto upstream_oid = upstream.value().target();

if (local_oid && upstream_oid)

{

git_graph_ahead_behind(&info.ahead, &info.behind, *this, local_oid, upstream_oid);

}

return info;

}

// Commits

commit_wrapper repository_wrapper::find_commit(std::string_view ref_name) const

{

git_oid oid_parent_commit;

throw_if_error(git_reference_name_to_id(&oid_parent_commit, *this, ref_name.data()));

return find_commit(oid_parent_commit);

}

commit_wrapper repository_wrapper::find_commit(const git_oid& id) const

{

git_commit* commit;

throw_if_error(git_commit_lookup(&commit, *this, &id));

return commit_wrapper(commit);

}

void repository_wrapper::create_commit(

const signature_wrapper::author_committer_signatures& author_committer_signatures,

const std::string_view message,

const std::optional<commit_list_wrapper>& parents_list

)

{

const char* message_encoding = "UTF-8";

git_oid commit_id;

std::string update_ref = "HEAD";

const git_commit* placeholder[1] = {nullptr};

auto [parents, parents_count] = [&]() -> std::pair<const git_commit**, size_t>

{

if (parents_list)

{

auto pl_size = parents_list.value().size();

git_commit** pl_value = parents_list.value();

auto pl_value_const = const_cast<const git_commit**>(pl_value);

return {pl_value_const, pl_size};

}

else

{

auto parent = revparse_single(update_ref);

size_t parents_count = 0;

if (parent)

{

parents_count = 1;

placeholder[0] = *parent;

}

return {placeholder, parents_count};

}

}();

index_wrapper index = this->make_index();

// Check: initial commit (no parents) with nothing staged

if (parents_count == 0 && index.entry_count() == 0)

{

throw std::runtime_error(

"On branch main\n\nInitial commit\n\nnothing to commit "

"(create/copy files and use \"git add\" to track)"

);

}

git_oid tree_id = index.write_tree();

index.write();

// Check: tree is identical to parent tree (nothing changed since last commit)

if (parents_count > 0 && placeholder[0] != nullptr)

{

const git_oid* parent_tree_id = git_commit_tree_id(placeholder[0]);

if (git_oid_equal(&tree_id, parent_tree_id))

{

throw std::runtime_error("nothing to commit, working tree clean");

}

auto tree = this->tree_lookup(&tree_id);

throw_if_error(git_commit_create(

&commit_id,

*this,

update_ref.c_str(),

author_committer_signatures.first,

author_committer_signatures.second,

message_encoding,

message.data(),

tree,

parents_count,

parents

));

}

std::optional<annotated_commit_wrapper>

repository_wrapper::resolve_local_ref(const std::string_view target_name) const

{

if (auto ref = this->find_reference_dwim(target_name))

{

return this->find_annotated_commit(*ref);

}

else if (auto obj = this->revparse_single(target_name))

{

return this->find_annotated_commit(obj->oid());

}

else

{

return std::nullopt;

}

// Annotated commits

annotated_commit_wrapper repository_wrapper::find_annotated_commit(const git_oid& id) const

{

git_annotated_commit* commit;

throw_if_error(git_annotated_commit_lookup(&commit, *this, &id));

return annotated_commit_wrapper(commit);

}

// Objects

std::optional<object_wrapper> repository_wrapper::revparse_single(std::string_view spec) const

{

git_object* obj;

int rc = git_revparse_single(&obj, *this, spec.data());

return rc == 0 ? std::make_optional(object_wrapper(obj)) : std::nullopt;

}

object_wrapper repository_wrapper::find_object(const git_oid id, git_object_t type)

{

git_object* object;

git_object_lookup(&object, *this, &id, type);

return object_wrapper(object);

}

// Head manipulations

void repository_wrapper::set_head(std::string_view ref_name)

{

throw_if_error(git_repository_set_head(*this, ref_name.data()));

}

void repository_wrapper::set_head_detached(const annotated_commit_wrapper& commit)

{

throw_if_error(git_repository_set_head_detached_from_annotated(*this, commit));

}

void repository_wrapper::reset(

const object_wrapper& target,

git_reset_t reset_type,

const git_checkout_options& checkout_options

)

{

// TODO: gerer l'index

throw_if_error(git_reset(*this, target, reset_type, &checkout_options));

}

size_t repository_wrapper::shallow_depth_from_head() const

{

if (!this->is_shallow())

{

return 0u;

}

std::string path = this->path();

std::string shallow_path = path + "shallow";

std::vector<git_oid> boundaries_list;

std::ifstream f(shallow_path);

std::string line;

while (std::getline(f, line))

{

if (!line.empty())

{

git_oid commit_oid;

git_oid_fromstrp(&commit_oid, line.c_str());

boundaries_list.push_back(commit_oid);

}

if (boundaries_list.size() == 0u)

{

return 0u;

}

commit_wrapper head_commit = this->find_commit("HEAD");

commit_list_wrapper commits_list = head_commit.get_parents_list();

std::vector<size_t> depth_list(commits_list.size(), 1u);

std::vector<size_t> final_depths(boundaries_list.size(), 1u);

bool has_parent = commits_list.size() > 0u;

while (has_parent)

{

has_parent = false;

std::vector<commit_wrapper> temp_commits_list;

std::vector<size_t> temp_depth_list;

commit_list_wrapper parent_list({});

for (size_t i = 0u; i < commits_list.size(); i++)

{

const commit_wrapper& commit = commits_list[i];

size_t depth = depth_list[i];

const git_oid& oid = commit.oid();

bool is_boundary = std::find_if(

boundaries_list.cbegin(),

boundaries_list.cend(),

[oid](const git_oid& val)

{

return git_oid_equal(&oid, &val);

}

)

!= boundaries_list.cend();

if (is_boundary)

{

final_depths.push_back(depth + 1u);

}

else

{

parent_list = commit.get_parents_list();

if (parent_list.size() > 0u)

{

has_parent = true;

for (size_t j = 0u; j < parent_list.size(); ++j)

{

const commit_wrapper& c = parent_list[j];

temp_commits_list.push_back(std::move(const_cast<commit_wrapper&>(c)));

temp_depth_list.push_back(depth + 1u);

}

depth_list = temp_depth_list;

commits_list = commit_list_wrapper(std::move(temp_commits_list));

}

std::size_t depth = *std::max_element(final_depths.begin(), final_depths.end());

return depth;

}

// Trees

void repository_wrapper::checkout_tree(const object_wrapper& target, const git_checkout_options opts)

{

throw_if_error(git_checkout_tree(*this, target, &opts));

}

tree_wrapper repository_wrapper::tree_lookup(const git_oid* tree_id)

{

git_tree* tree;

throw_if_error(git_tree_lookup(&tree, *this, tree_id));

return tree_wrapper(tree);

}

tree_wrapper repository_wrapper::treeish_to_tree(const std::string& treeish)

{

auto obj = this->revparse_single(treeish.c_str());

git_tree* tree = nullptr;

throw_if_error(git_object_peel(reinterpret_cast<git_object**>(&tree), obj.value(), GIT_OBJECT_TREE));

return tree_wrapper(tree);

}

// Remotes

remote_wrapper repository_wrapper::find_remote(std::string_view name) const

{

git_remote* remote = nullptr;

throw_if_error(git_remote_lookup(&remote, *this, name.data()));

return remote_wrapper(remote);

}

remote_wrapper repository_wrapper::create_remote(std::string_view name, std::string_view url)

{

git_remote* remote = nullptr;

throw_if_error(git_remote_create(&remote, *this, name.data(), url.data()));

return remote_wrapper(remote);

}

void repository_wrapper::delete_remote(std::string_view name)

{

throw_if_error(git_remote_delete(*this, name.data()));

}

void repository_wrapper::rename_remote(std::string_view old_name, std::string_view new_name)

{

git_strarray problems = {0};

int error = git_remote_rename(&problems, *this, old_name.data(), new_name.data());

if (error != 0)

{

for (size_t i = 0; i < problems.count; ++i)

{

std::cerr << problems.strings[i] << std::endl;

}

git_strarray_dispose(&problems);

throw_if_error(error);

}

git_strarray_dispose(&problems);

}

void repository_wrapper::set_remote_url(std::string_view name, std::string_view url, bool push)

{

if (push)

{

throw_if_error(git_remote_set_pushurl(*this, name.data(), url.data()));

}

else

{

throw_if_error(git_remote_set_url(*this, name.data(), url.data()));

}

std::vector<std::string> repository_wrapper::list_remotes() const

{

git_strarray remotes = {0};

throw_if_error(git_remote_list(&remotes, *this));

std::vector<std::string> result;

for (size_t i = 0; i < remotes.count; ++i)

{

result.emplace_back(remotes.strings[i]);

}

git_strarray_dispose(&remotes);

return result;

}

// Config

config_wrapper repository_wrapper::get_config()

{

git_config* cfg;

throw_if_error(git_repository_config(&cfg, *this));

return config_wrapper(cfg);

}

// Diff

diff_wrapper repository_wrapper::diff_tree_to_index(

const tree_wrapper& old_tree,

std::optional<index_wrapper> index,

git_diff_options* diffopts

)

{

git_diff* diff;

git_index* idx = nullptr;

if (index)

{

idx = *index;

}

throw_if_error(git_diff_tree_to_index(&diff, *this, old_tree, idx, diffopts));

return diff_wrapper(diff);

}

diff_wrapper repository_wrapper::diff_tree_to_tree(

const tree_wrapper& old_tree,

const tree_wrapper& new_tree,

git_diff_options* diffopts

)

{

git_diff* diff;

throw_if_error(git_diff_tree_to_tree(&diff, *this, old_tree, new_tree, diffopts));

return diff_wrapper(diff);

}

diff_wrapper repository_wrapper::diff_tree_to_workdir(const tree_wrapper& old_tree, git_diff_options* diffopts)

{

git_diff* diff;

throw_if_error(git_diff_tree_to_workdir(&diff, *this, old_tree, diffopts));

return diff_wrapper(diff);

}

diff_wrapper

repository_wrapper::diff_tree_to_workdir_with_index(const tree_wrapper& old_tree, git_diff_options* diffopts)

{

git_diff* diff;

throw_if_error(git_diff_tree_to_workdir_with_index(&diff, *this, old_tree, diffopts));

return diff_wrapper(diff);

}

diff_wrapper

repository_wrapper::diff_index_to_workdir(std::optional<index_wrapper> index, git_diff_options* diffopts)

{

git_diff* diff;

git_index* idx = nullptr;

if (index)

{

idx = *index;

}

throw_if_error(git_diff_index_to_workdir(&diff, *this, idx, diffopts));

return diff_wrapper(diff);

}

// Tags

strarray_owned_wrapper repository_wrapper::tag_list_match(std::string pattern)

{

strarray_owned_wrapper tag_names;

throw_if_error(git_tag_list_match(tag_names, pattern.c_str(), *this));

return tag_names;

}

git2cpp/src/wrapper/repository_wrapper.cpp at main · QuantStack/git2cpp · GitHub

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