mirror of
https://git.proxmox.com/git/libgit2
synced 2025-10-31 00:16:35 +00:00
148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
#include "clar_libgit2.h"
|
|
#include "../checkout/checkout_helpers.h"
|
|
|
|
#include "buffer.h"
|
|
#include "index.h"
|
|
#include "repository.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);
|
|
}
|
|
|
|
void test_index_racy__empty_file_after_smudge(void)
|
|
{
|
|
git_index *index;
|
|
git_diff *diff;
|
|
git_buf path = GIT_BUF_INIT;
|
|
int i, found_race = 0;
|
|
const git_index_entry *entry;
|
|
|
|
/* Make sure we do have a timestamp */
|
|
cl_git_pass(git_repository_index__weakptr(&index, g_repo));
|
|
cl_git_pass(git_index_write(index));
|
|
|
|
cl_git_pass(git_buf_joinpath(&path, git_repository_workdir(g_repo), "A"));
|
|
|
|
/* Make sure writing the file, adding and rewriting happen in the same second */
|
|
for (i = 0; i < 10; i++) {
|
|
struct stat st;
|
|
cl_git_mkfile(path.ptr, "A");
|
|
|
|
cl_git_pass(git_index_add_bypath(index, "A"));
|
|
cl_git_mkfile(path.ptr, "B");
|
|
cl_git_pass(git_index_write(index));
|
|
|
|
cl_git_mkfile(path.ptr, "");
|
|
|
|
cl_git_pass(p_stat(path.ptr, &st));
|
|
cl_assert(entry = git_index_get_bypath(index, "A", 0));
|
|
if (entry->mtime.seconds == (int32_t) st.st_mtime) {
|
|
found_race = 1;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if (!found_race)
|
|
cl_fail("failed to find race after 10 attempts");
|
|
|
|
cl_assert_equal_i(0, entry->file_size);
|
|
|
|
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);
|
|
}
|