1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
#include "../clar_libgit2.h"
#include "remote.h"
#include "repository.h"
static git_repository *repo1;
static git_repository *repo2;
static char* repo1_path;
static char* repo2_path;
static const char *REPO1_REFNAME = "refs/heads/main";
static const char *REPO2_REFNAME = "refs/remotes/repo1/main";
static char *FORCE_FETCHSPEC = "+refs/heads/main:refs/remotes/repo1/main";
static char *NON_FORCE_FETCHSPEC = "refs/heads/main:refs/remotes/repo1/main";
void test_remote_fetch__initialize(void) {
git_config *c;
git_str repo1_path_buf = GIT_STR_INIT;
git_str repo2_path_buf = GIT_STR_INIT;
const char *sandbox = clar_sandbox_path();
cl_git_pass(git_str_joinpath(&repo1_path_buf, sandbox, "fetchtest_repo1"));
repo1_path = git_str_detach(&repo1_path_buf);
cl_git_pass(git_repository_init(&repo1, repo1_path, true));
cl_git_pass(git_str_joinpath(&repo2_path_buf, sandbox, "fetchtest_repo2"));
repo2_path = git_str_detach(&repo2_path_buf);
cl_git_pass(git_repository_init(&repo2, repo2_path, true));
cl_git_pass(git_repository_config(&c, repo1));
cl_git_pass(git_config_set_string(c, "user.email", "some@email"));
cl_git_pass(git_config_set_string(c, "user.name", "some@name"));
git_config_free(c);
git_str_dispose(&repo1_path_buf);
git_str_dispose(&repo2_path_buf);
}
void test_remote_fetch__cleanup(void) {
git_repository_free(repo1);
git_repository_free(repo2);
cl_git_pass(git_futils_rmdir_r(repo1_path, NULL, GIT_RMDIR_REMOVE_FILES));
free(repo1_path);
cl_git_pass(git_futils_rmdir_r(repo2_path, NULL, GIT_RMDIR_REMOVE_FILES));
free(repo2_path);
}
/**
* This checks that the '+' flag on fetchspecs is respected. We create a
* repository that has a reference to two commits, one a child of the other.
* We fetch this repository into a second repository. Then we reset the
* reference in the first repository and run the fetch again. If the '+' flag
* is used then the reference in the second repository will change, but if it
* is not then it should stay the same.
*
* @param commit1id A pointer to an OID which will be populated with the first
* commit.
* @param commit2id A pointer to an OID which will be populated with the second
* commit, which is a descendant of the first.
* @param force Whether to use a spec with '+' prefixed to force the refs
* to update
*/
void do_time_travelling_fetch(git_oid *commit1id, git_oid *commit2id,
bool force) {
char *refspec_strs = {
force ? FORCE_FETCHSPEC : NON_FORCE_FETCHSPEC,
};
git_strarray refspecs = {
.count = 1,
.strings = &refspec_strs,
};
/* create two commits in repo 1 and a reference to them */
{
git_oid empty_tree_id;
git_tree *empty_tree;
git_signature *sig;
git_treebuilder *tb;
cl_git_pass(git_treebuilder_new(&tb, repo1, NULL));
cl_git_pass(git_treebuilder_write(&empty_tree_id, tb));
cl_git_pass(git_tree_lookup(&empty_tree, repo1, &empty_tree_id));
cl_git_pass(git_signature_default(&sig, repo1));
cl_git_pass(git_commit_create(commit1id, repo1, REPO1_REFNAME, sig,
sig, NULL, "one", empty_tree, 0, NULL));
cl_git_pass(git_commit_create_v(commit2id, repo1, REPO1_REFNAME, sig,
sig, NULL, "two", empty_tree, 1, commit1id));
git_tree_free(empty_tree);
git_signature_free(sig);
git_treebuilder_free(tb);
}
/* fetch the reference via the remote */
{
git_remote *remote;
cl_git_pass(git_remote_create_anonymous(&remote, repo2,
git_repository_path(repo1)));
cl_git_pass(git_remote_fetch(remote, &refspecs, NULL, "some message"));
git_remote_free(remote);
}
/* assert that repo2 references the second commit */
{
const git_oid *target;
git_reference *ref;
cl_git_pass(git_reference_lookup(&ref, repo2, REPO2_REFNAME));
target = git_reference_target(ref);
cl_assert_equal_b(git_oid_cmp(target, commit2id), 0);
git_reference_free(ref);
}
/* set the reference in repo1 to point to the older commit */
{
git_reference *ref;
git_reference *ref2;
cl_git_pass(git_reference_lookup(&ref, repo1, REPO1_REFNAME));
cl_git_pass(git_reference_set_target(&ref2, ref, commit1id,
"rollback"));
git_reference_free(ref);
git_reference_free(ref2);
}
/* fetch the reference again */
{
git_remote *remote;
cl_git_pass(git_remote_create_anonymous(&remote, repo2,
git_repository_path(repo1)));
cl_git_pass(git_remote_fetch(remote, &refspecs, NULL, "some message"));
git_remote_free(remote);
}
}
void test_remote_fetch__dont_update_refs_if_not_descendant_and_not_force(void) {
const git_oid *target;
git_oid commit1id;
git_oid commit2id;
git_reference *ref;
do_time_travelling_fetch(&commit1id, &commit2id, false);
/* assert that the reference in repo2 has not changed */
cl_git_pass(git_reference_lookup(&ref, repo2, REPO2_REFNAME));
target = git_reference_target(ref);
cl_assert_equal_b(git_oid_cmp(target, &commit2id), 0);
git_reference_free(ref);
}
void test_remote_fetch__do_update_refs_if_not_descendant_and_force(void) {
const git_oid *target;
git_oid commit1id;
git_oid commit2id;
git_reference *ref;
do_time_travelling_fetch(&commit1id, &commit2id, true);
/* assert that the reference in repo2 has changed */
cl_git_pass(git_reference_lookup(&ref, repo2, REPO2_REFNAME));
target = git_reference_target(ref);
cl_assert_equal_b(git_oid_cmp(target, &commit1id), 0);
git_reference_free(ref);
}
|
