Walks through the commits in the specified Git repository.

git2-walk.c

#include <git2.h>
#include <stdio.h>

#define REPOSITORY_DIR "Repository"

void print_error()
{
    const git_error * last_error = giterr_last();
    printf("Error: %s\n", last_error->message);
}

int main (int argc, char ** argv)
{
    git_repository * repo = NULL;
    git_revwalk * revwalk = NULL;
    git_oid oid;
    
    if(git_repository_open(&repo, REPOSITORY_DIR) ||
       git_revwalk_new(&revwalk, repo) ||
       git_revwalk_push_head(revwalk))
        goto error;
    
    while(!git_revwalk_next(&oid, revwalk))
    {
        git_commit * commit;
        
        if(!git_commit_lookup(&commit, repo, &oid))
        {
            printf("- %s", git_commit_message(commit));
            git_commit_free(commit);
        }
        else
            printf("** Error looking up commit **\n");
    }
    
    goto done;
    
error:
    
    print_error();
    
done:
    
    if(revwalk) git_revwalk_free(revwalk);
    if(repo)    git_repository_free(repo);
    
    return 0;
}

Makefile

CC=gcc

git2-walk: git2-walk.o
	$(CC) git2-walk.o -lgit2 -o git2-walk

git2-walk.o: git2-walk.c
	$(CC) -c git2-walk.c