1 #include "clar_libgit2.h"
2
3 #include "odb.h"
4 #include "futils.h"
5 #include "repository.h"
6
7 #define TEMP_REPO_FOLDER "temprepo/"
8 #define DISCOVER_FOLDER TEMP_REPO_FOLDER "discover.git"
9
10 #define SUB_REPOSITORY_FOLDER_NAME "sub_repo"
11 #define SUB_REPOSITORY_FOLDER DISCOVER_FOLDER "/" SUB_REPOSITORY_FOLDER_NAME
12 #define SUB_REPOSITORY_GITDIR SUB_REPOSITORY_FOLDER "/.git"
13 #define SUB_REPOSITORY_FOLDER_SUB SUB_REPOSITORY_FOLDER "/sub"
14 #define SUB_REPOSITORY_FOLDER_SUB_SUB SUB_REPOSITORY_FOLDER_SUB "/subsub"
15 #define SUB_REPOSITORY_FOLDER_SUB_SUB_SUB SUB_REPOSITORY_FOLDER_SUB_SUB "/subsubsub"
16
17 #define REPOSITORY_ALTERNATE_FOLDER DISCOVER_FOLDER "/alternate_sub_repo"
18 #define REPOSITORY_ALTERNATE_FOLDER_SUB REPOSITORY_ALTERNATE_FOLDER "/sub"
19 #define REPOSITORY_ALTERNATE_FOLDER_SUB_SUB REPOSITORY_ALTERNATE_FOLDER_SUB "/subsub"
20 #define REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB REPOSITORY_ALTERNATE_FOLDER_SUB_SUB "/subsubsub"
21
22 #define ALTERNATE_MALFORMED_FOLDER1 DISCOVER_FOLDER "/alternate_malformed_repo1"
23 #define ALTERNATE_MALFORMED_FOLDER2 DISCOVER_FOLDER "/alternate_malformed_repo2"
24 #define ALTERNATE_MALFORMED_FOLDER3 DISCOVER_FOLDER "/alternate_malformed_repo3"
25 #define ALTERNATE_NOT_FOUND_FOLDER DISCOVER_FOLDER "/alternate_not_found_repo"
26
ensure_repository_discover(const char * start_path,const char * ceiling_dirs,const char * expected_path)27 static void ensure_repository_discover(const char *start_path,
28 const char *ceiling_dirs,
29 const char *expected_path)
30 {
31 git_buf found_path = GIT_BUF_INIT, resolved = GIT_BUF_INIT;
32
33 git_buf_attach(&resolved, p_realpath(expected_path, NULL), 0);
34 cl_assert(resolved.size > 0);
35 cl_git_pass(git_path_to_dir(&resolved));
36 cl_git_pass(git_repository_discover(&found_path, start_path, 1, ceiling_dirs));
37
38 cl_assert_equal_s(found_path.ptr, resolved.ptr);
39
40 git_buf_dispose(&resolved);
41 git_buf_dispose(&found_path);
42 }
43
write_file(const char * path,const char * content)44 static void write_file(const char *path, const char *content)
45 {
46 git_file file;
47 int error;
48
49 if (git_path_exists(path)) {
50 cl_git_pass(p_unlink(path));
51 }
52
53 file = git_futils_creat_withpath(path, 0777, 0666);
54 cl_assert(file >= 0);
55
56 error = p_write(file, content, strlen(content) * sizeof(char));
57 p_close(file);
58 cl_git_pass(error);
59 }
60
61 /*no check is performed on ceiling_dirs length, so be sure it's long enough */
append_ceiling_dir(git_buf * ceiling_dirs,const char * path)62 static void append_ceiling_dir(git_buf *ceiling_dirs, const char *path)
63 {
64 git_buf pretty_path = GIT_BUF_INIT;
65 char ceiling_separator[2] = { GIT_PATH_LIST_SEPARATOR, '\0' };
66
67 cl_git_pass(git_path_prettify_dir(&pretty_path, path, NULL));
68
69 if (ceiling_dirs->size > 0)
70 git_buf_puts(ceiling_dirs, ceiling_separator);
71
72 git_buf_puts(ceiling_dirs, pretty_path.ptr);
73
74 git_buf_dispose(&pretty_path);
75 cl_assert(git_buf_oom(ceiling_dirs) == 0);
76 }
77
78 static git_buf discovered;
79 static git_buf ceiling_dirs;
80
test_repo_discover__initialize(void)81 void test_repo_discover__initialize(void)
82 {
83 git_repository *repo;
84 const mode_t mode = 0777;
85 git_futils_mkdir_r(DISCOVER_FOLDER, mode);
86
87 git_buf_init(&discovered, 0);
88 git_buf_init(&ceiling_dirs, 0);
89 append_ceiling_dir(&ceiling_dirs, TEMP_REPO_FOLDER);
90
91 cl_git_pass(git_repository_init(&repo, DISCOVER_FOLDER, 1));
92 git_repository_free(repo);
93
94 cl_git_pass(git_repository_init(&repo, SUB_REPOSITORY_FOLDER, 0));
95 cl_git_pass(git_futils_mkdir_r(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, mode));
96 cl_git_pass(git_futils_mkdir_r(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, mode));
97
98 cl_git_pass(git_futils_mkdir_r(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, mode));
99 write_file(REPOSITORY_ALTERNATE_FOLDER "/" DOT_GIT, "gitdir: ../" SUB_REPOSITORY_FOLDER_NAME "/" DOT_GIT);
100 write_file(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB "/" DOT_GIT, "gitdir: ../../../" SUB_REPOSITORY_FOLDER_NAME "/" DOT_GIT);
101 write_file(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB "/" DOT_GIT, "gitdir: ../../../../");
102
103 cl_git_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER1, mode));
104 write_file(ALTERNATE_MALFORMED_FOLDER1 "/" DOT_GIT, "Anything but not gitdir:");
105 cl_git_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER2, mode));
106 write_file(ALTERNATE_MALFORMED_FOLDER2 "/" DOT_GIT, "gitdir:");
107 cl_git_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER3, mode));
108 write_file(ALTERNATE_MALFORMED_FOLDER3 "/" DOT_GIT, "gitdir: \n\n\n");
109 cl_git_pass(git_futils_mkdir_r(ALTERNATE_NOT_FOUND_FOLDER, mode));
110 write_file(ALTERNATE_NOT_FOUND_FOLDER "/" DOT_GIT, "gitdir: a_repository_that_surely_does_not_exist");
111
112 git_repository_free(repo);
113 }
114
test_repo_discover__cleanup(void)115 void test_repo_discover__cleanup(void)
116 {
117 git_buf_dispose(&discovered);
118 git_buf_dispose(&ceiling_dirs);
119 cl_git_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, NULL, GIT_RMDIR_REMOVE_FILES));
120 }
121
test_repo_discover__discovering_repo_with_exact_path_succeeds(void)122 void test_repo_discover__discovering_repo_with_exact_path_succeeds(void)
123 {
124 cl_git_pass(git_repository_discover(&discovered, DISCOVER_FOLDER, 0, ceiling_dirs.ptr));
125 cl_git_pass(git_repository_discover(&discovered, SUB_REPOSITORY_FOLDER, 0, ceiling_dirs.ptr));
126 }
127
test_repo_discover__discovering_nonexistent_dir_fails(void)128 void test_repo_discover__discovering_nonexistent_dir_fails(void)
129 {
130 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, DISCOVER_FOLDER "-nonexistent", 0, NULL));
131 }
132
test_repo_discover__discovering_repo_with_subdirectory_succeeds(void)133 void test_repo_discover__discovering_repo_with_subdirectory_succeeds(void)
134 {
135 ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
136 ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
137 ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
138 }
139
test_repo_discover__discovering_repository_with_alternative_gitdir_succeeds(void)140 void test_repo_discover__discovering_repository_with_alternative_gitdir_succeeds(void)
141 {
142 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
143 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
144 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
145 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, ceiling_dirs.ptr, DISCOVER_FOLDER);
146 }
147
test_repo_discover__discovering_repository_with_malformed_alternative_gitdir_fails(void)148 void test_repo_discover__discovering_repository_with_malformed_alternative_gitdir_fails(void)
149 {
150 cl_git_fail(git_repository_discover(&discovered, ALTERNATE_MALFORMED_FOLDER1, 0, ceiling_dirs.ptr));
151 cl_git_fail(git_repository_discover(&discovered, ALTERNATE_MALFORMED_FOLDER2, 0, ceiling_dirs.ptr));
152 cl_git_fail(git_repository_discover(&discovered, ALTERNATE_MALFORMED_FOLDER3, 0, ceiling_dirs.ptr));
153 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, ALTERNATE_NOT_FOUND_FOLDER, 0, ceiling_dirs.ptr));
154 }
155
test_repo_discover__discovering_repository_with_ceiling(void)156 void test_repo_discover__discovering_repository_with_ceiling(void)
157 {
158 append_ceiling_dir(&ceiling_dirs, SUB_REPOSITORY_FOLDER_SUB);
159
160 /* this must pass as ceiling_directories cannot prevent the current
161 * working directory to be checked */
162 ensure_repository_discover(SUB_REPOSITORY_FOLDER, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
163
164 ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
165 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, SUB_REPOSITORY_FOLDER_SUB_SUB, 0, ceiling_dirs.ptr));
166 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, 0, ceiling_dirs.ptr));
167 }
168
test_repo_discover__other_ceiling(void)169 void test_repo_discover__other_ceiling(void)
170 {
171 append_ceiling_dir(&ceiling_dirs, SUB_REPOSITORY_FOLDER);
172
173 /* this must pass as ceiling_directories cannot predent the current
174 * working directory to be checked */
175 ensure_repository_discover(SUB_REPOSITORY_FOLDER, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
176
177 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, SUB_REPOSITORY_FOLDER_SUB, 0, ceiling_dirs.ptr));
178 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, SUB_REPOSITORY_FOLDER_SUB_SUB, 0, ceiling_dirs.ptr));
179 cl_assert_equal_i(GIT_ENOTFOUND, git_repository_discover(&discovered, SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, 0, ceiling_dirs.ptr));
180 }
181
test_repo_discover__ceiling_should_not_affect_gitdir_redirection(void)182 void test_repo_discover__ceiling_should_not_affect_gitdir_redirection(void)
183 {
184 append_ceiling_dir(&ceiling_dirs, SUB_REPOSITORY_FOLDER);
185
186 /* gitfile redirection should not be affected by ceiling directories */
187 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
188 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
189 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB, ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
190 ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, ceiling_dirs.ptr, DISCOVER_FOLDER);
191 }
192
test_repo_discover__discovery_starting_at_file_succeeds(void)193 void test_repo_discover__discovery_starting_at_file_succeeds(void)
194 {
195 int fd;
196
197 cl_assert((fd = p_creat(SUB_REPOSITORY_FOLDER "/file", 0600)) >= 0);
198 cl_assert(p_close(fd) == 0);
199
200 ensure_repository_discover(SUB_REPOSITORY_FOLDER "/file", ceiling_dirs.ptr, SUB_REPOSITORY_GITDIR);
201 }
202
test_repo_discover__discovery_starting_at_system_root_causes_no_hang(void)203 void test_repo_discover__discovery_starting_at_system_root_causes_no_hang(void)
204 {
205 #ifdef GIT_WIN32
206 git_buf out = GIT_BUF_INIT;
207 cl_git_fail(git_repository_discover(&out, "C:/", 0, NULL));
208 cl_git_fail(git_repository_discover(&out, "//localhost/", 0, NULL));
209 #endif
210 }
211