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This repository was archived by the owner on Jan 19, 2021. It is now read-only.
Trying to commit fires a libgit2 exception #5
Description
Hello, your example about git add and git commit only works with non-existing repo.
Trying to launch it against pre-cloned one leads to
terminate called after throwing an instance of 'cppgit2::git_exception'
what(): failed to create commit: current tip is not the first parent
Aborted (core dumped)
Ok, no problem. Looks like libgit wants us to put head commit to the list of parents. So, I changed your example code to:
#include <cppgit2/repository.hpp>
#include <fstream>
#include <iostream>
using namespace cppgit2;
int main(int argc, char **argv) {
if (argc == 2) {
// Create new repo
auto repo = repository::init(argv[1], false);
// Write README file
std::ofstream readme;
readme.open(std::string{argv[1]} + "/README.md");
readme << "Hello, World!";
readme.close();
// Stage README.md
auto index = repo.index();
index.add_entry_by_path("README.md");
index.write();
auto tree_oid = index.write_tree();
// Prepare signatures
auto author = signature("foobar", "foo.bar@baz.com");
auto committer = signature("foobar", "foo.bar@baz.com");
auto head_commit = repo.lookup_commit(repo.head().target());
// Create commit
auto commit_oid =
repo.create_commit("HEAD", author, committer, "utf-8", "Update README",
repo.lookup_tree(tree_oid), {head_commit});
std::cout << "Created commit with ID: " << commit_oid.to_hex_string()
<< std::endl;
} else {
std::cout << "Usage: ./executable <new_repo_path>\n";
}
}Changes:
1: added
auto head_commit = repo.lookup_commit(repo.head().target());
2: changed
auto commit_oid =
repo.create_commit("HEAD", author, committer, "utf-8", "Update README",
repo.lookup_tree(tree_oid), {});to
auto commit_oid =
repo.create_commit("HEAD", author, committer, "utf-8", "Update README",
repo.lookup_tree(tree_oid), {head_commit});However this time all I get is
Created commit with ID: ae140784904fab2e8f8ca8cce2fbecd06d79af09
testgit: /home/user/src/cpp/contrib/libgit2-1.0.0/src/mwindow.c:102: git_mwindow_put_pack: Assertion `git__pack_cache' failed.
Aborted (core dumped)
As you see. technically the code does work and commit is made, however I cannot rid of that exception which breaks the rest of the code.
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