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#include "clar_libgit2.h"
#include "../checkout/checkout_helpers.h"
#include "buffer.h"
#include "index.h"
static git_repository *g_repo;
void test_index_racy__initialize(void)
{
cl_git_pass(git_repository_init(&g_repo, "diff_racy", false));
}
void test_index_racy__cleanup(void)
{
git_repository_free(g_repo);
g_repo = NULL;
cl_fixture_cleanup("diff_racy");
}
void test_index_racy__diff(void)
{
git_index *index;
git_diff *diff;
git_buf path = GIT_BUF_INIT;
cl_git_pass(git_buf_joinpath(&path, git_repository_workdir(g_repo), "A"));
cl_git_mkfile(path.ptr, "A");
/* Put 'A' into the index */
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_add_bypath(index, "A"));
cl_git_pass(git_index_write(index));
cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
cl_assert_equal_i(0, git_diff_num_deltas(diff));
git_diff_free(diff);
/* Change its contents quickly, so we get the same timestamp */
cl_git_mkfile(path.ptr, "B");
cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
cl_assert_equal_i(1, git_diff_num_deltas(diff));
git_index_free(index);
git_diff_free(diff);
git_buf_free(&path);
}
void test_index_racy__write_index_just_after_file(void)
{
git_index *index;
git_diff *diff;
git_buf path = GIT_BUF_INIT;
struct timeval times[2];
/* Make sure we do have a timestamp */
cl_git_pass(git_repository_index(&index, g_repo));
cl_git_pass(git_index_write(index));
cl_git_pass(git_buf_joinpath(&path, git_repository_workdir(g_repo), "A"));
cl_git_mkfile(path.ptr, "A");
/* Force the file's timestamp to be a second after we wrote the index */
times[0].tv_sec = index->stamp.mtime + 1;
times[0].tv_usec = 0;
times[1].tv_sec = index->stamp.mtime + 1;
times[1].tv_usec = 0;
cl_git_pass(p_utimes(path.ptr, times));
/*
* Put 'A' into the index, the size field will be filled,
* because the index' on-disk timestamp does not match the
* file's timestamp.
*/
cl_git_pass(git_index_add_bypath(index, "A"));
cl_git_pass(git_index_write(index));
cl_git_mkfile(path.ptr, "B");
/*
* Pretend this index' modification happend a second after the
* file update, and rewrite the file in that same second.
*/
times[0].tv_sec = index->stamp.mtime + 2;
times[0].tv_usec = 0;
times[1].tv_sec = index->stamp.mtime + 2;
times[0].tv_usec = 0;
cl_git_pass(p_utimes(git_index_path(index), times));
cl_git_pass(p_utimes(path.ptr, times));
cl_git_pass(git_index_read(index, true));
cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
cl_assert_equal_i(1, git_diff_num_deltas(diff));
git_buf_free(&path);
git_diff_free(diff);
git_index_free(index);
}
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