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#include "clar_libgit2.h"

#include <git2.h>

#include "fileops.h"

#include "hash.h"

#include "iterator.h"

#include "vector.h"

#include "posix.h"

/*

* This is a packfile with three objects. The second is a delta which

* depends on the third, which is also a delta.

*/

static const unsigned char out_of_order_pack[] = {

0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03,

0x32, 0x78, 0x9c, 0x63, 0x67, 0x00, 0x00, 0x00, 0x10, 0x00, 0x08, 0x76,

0xe6, 0x8f, 0xe8, 0x12, 0x9b, 0x54, 0x6b, 0x10, 0x1a, 0xee, 0x95, 0x10,

0xc5, 0x32, 0x8e, 0x7f, 0x21, 0xca, 0x1d, 0x18, 0x78, 0x9c, 0x63, 0x62,

0x66, 0x4e, 0xcb, 0xcf, 0x07, 0x00, 0x02, 0xac, 0x01, 0x4d, 0x75, 0x01,

0xd7, 0x71, 0x36, 0x66, 0xf4, 0xde, 0x82, 0x27, 0x76, 0xc7, 0x62, 0x2c,

0x10, 0xf1, 0xb0, 0x7d, 0xe2, 0x80, 0xdc, 0x78, 0x9c, 0x63, 0x62, 0x62,

0x62, 0xb7, 0x03, 0x00, 0x00, 0x69, 0x00, 0x4c, 0xde, 0x7d, 0xaa, 0xe4,

0x19, 0x87, 0x58, 0x80, 0x61, 0x09, 0x9a, 0x33, 0xca, 0x7a, 0x31, 0x92,

0x6f, 0xae, 0x66, 0x75

};

static const unsigned int out_of_order_pack_len = 112;

/*

* Packfile with two objects. The second is a delta against an object

* which is not in the packfile

*/

static const unsigned char thin_pack[] = {

0x50, 0x41, 0x43, 0x4b, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02,

0x32, 0x78, 0x9c, 0x63, 0x67, 0x00, 0x00, 0x00, 0x10, 0x00, 0x08, 0x76,

0xe6, 0x8f, 0xe8, 0x12, 0x9b, 0x54, 0x6b, 0x10, 0x1a, 0xee, 0x95, 0x10,

0xc5, 0x32, 0x8e, 0x7f, 0x21, 0xca, 0x1d, 0x18, 0x78, 0x9c, 0x63, 0x62,

0x66, 0x4e, 0xcb, 0xcf, 0x07, 0x00, 0x02, 0xac, 0x01, 0x4d, 0x42, 0x52,

0x3a, 0x6f, 0x39, 0xd1, 0xfe, 0x66, 0x68, 0x6b, 0xa5, 0xe5, 0xe2, 0x97,

0xac, 0x94, 0x6c, 0x76, 0x0b, 0x04

};

static const unsigned int thin_pack_len = 78;

static const unsigned char base_obj[] = { 07, 076 };

static const unsigned int base_obj_len = 2;

void test_pack_indexer__out_of_order(void)

{

git_indexer *idx = 0;

git_transfer_progress stats = { 0 };

cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL, NULL));

cl_git_pass(git_indexer_append(

idx, out_of_order_pack, out_of_order_pack_len, &stats));

cl_git_pass(git_indexer_commit(idx, &stats));

cl_assert_equal_i(stats.total_objects, 3);

cl_assert_equal_i(stats.received_objects, 3);

cl_assert_equal_i(stats.indexed_objects, 3);

git_indexer_free(idx);

}

void test_pack_indexer__fix_thin(void)

{

git_indexer *idx = NULL;

git_transfer_progress stats = { 0 };

git_repository *repo;

git_odb *odb;

git_oid id, should_id;

cl_git_pass(git_repository_init(&repo, "thin.git", true));

cl_git_pass(git_repository_odb(&odb, repo));

/* Store the missing base into your ODB so the indexer can fix the pack */

cl_git_pass(git_odb_write(&id, odb, base_obj, base_obj_len, GIT_OBJ_BLOB));

git_oid_fromstr(&should_id, "e68fe8129b546b101aee9510c5328e7f21ca1d18");

cl_assert_equal_oid(&should_id, &id);

cl_git_pass(git_indexer_new(&idx, ".", 0, odb, NULL, NULL));

cl_git_pass(git_indexer_append(idx, thin_pack, thin_pack_len, &stats));

cl_git_pass(git_indexer_commit(idx, &stats));

cl_assert_equal_i(stats.total_objects, 2);

cl_assert_equal_i(stats.received_objects, 2);

cl_assert_equal_i(stats.indexed_objects, 2);

cl_assert_equal_i(stats.local_objects, 1);

git_oid_fromstr(&should_id, "11f0f69b334728fdd8bc86b80499f22f29d85b15");

cl_assert_equal_oid(&should_id, git_indexer_hash(idx));

git_indexer_free(idx);

git_odb_free(odb);

git_repository_free(repo);

/*

* The pack's name/hash only tells us what objects there are,

* so we need to go through the packfile again in order to

* figure out whether we calculated the trailer correctly.

*/

{

unsigned char buffer[128];

int fd;

ssize_t read;

struct stat st;

const char *name = "pack-11f0f69b334728fdd8bc86b80499f22f29d85b15.pack";

fd = p_open(name, O_RDONLY);

cl_assert(fd != -1);

cl_git_pass(p_stat(name, &st));

cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL, NULL));

read = p_read(fd, buffer, sizeof(buffer));

cl_assert(read != -1);

p_close(fd);

cl_git_pass(git_indexer_append(idx, buffer, read, &stats));

cl_git_pass(git_indexer_commit(idx, &stats));

cl_assert_equal_i(stats.total_objects, 3);

cl_assert_equal_i(stats.received_objects, 3);

cl_assert_equal_i(stats.indexed_objects, 3);

cl_assert_equal_i(stats.local_objects, 0);

git_indexer_free(idx);

}

}

static int find_tmp_file_recurs(void *opaque, git_buf *path)

{

int error = 0;

git_buf *first_tmp_file = opaque;

struct stat st;

if ((error = p_lstat_posixly(path->ptr, &st)) < 0)

return error;

if (S_ISDIR(st.st_mode))

return git_path_direach(path, 0, find_tmp_file_recurs, opaque);

/* This is the template that's used in git_futils_mktmp. */

if (strstr(git_buf_cstr(path), "_git2_") != NULL)

return git_buf_sets(first_tmp_file, git_buf_cstr(path));

return 0;

}

void test_pack_indexer__no_tmp_files(void)

{

git_indexer *idx = NULL;

git_buf path = GIT_BUF_INIT;

git_buf first_tmp_file = GIT_BUF_INIT;

/* Precondition: there are no temporary files. */

cl_git_pass(git_buf_sets(&path, clar_sandbox_path()));

cl_git_pass(find_tmp_file_recurs(&first_tmp_file, &path));

git_buf_free(&path);

cl_assert(git_buf_len(&first_tmp_file) == 0);

cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL, NULL));

git_indexer_free(idx);

cl_git_pass(git_buf_sets(&path, clar_sandbox_path()));

cl_git_pass(find_tmp_file_recurs(&first_tmp_file, &path));

git_buf_free(&path);

cl_assert(git_buf_len(&first_tmp_file) == 0);

git_buf_free(&first_tmp_file);

}