Commit 332e4f20273a424efcea06ca1550146c816f4404

Vicent Marti 2014-04-25T02:07:42

Merge pull request #2297 from libgit2/rb/status-with-precomposed-changes Improve test coverage of status with different core.precomposeunicode settings

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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
diff --git a/include/git2/status.h b/include/git2/status.h
index 8491845..6af45c7 100644
--- a/include/git2/status.h
+++ b/include/git2/status.h
@@ -236,6 +236,11 @@ GIT_EXTERN(int) git_status_foreach(
  * in what order.  See the `git_status_options` structure for details
  * about the additional controls that this makes available.
  *
+ * Note that if a `pathspec` is given in the `git_status_options` to filter
+ * the status, then the results from rename detection (if you enable it) may
+ * not be accurate.  To do rename detection properly, this must be called
+ * with no `pathspec` so that all files can be considered.
+ *
  * @param repo Repository object
  * @param opts Status options structure
  * @param callback The function to call on each file
@@ -251,8 +256,20 @@ GIT_EXTERN(int) git_status_foreach_ext(
 /**
  * Get file status for a single file.
  *
- * This is not quite the same as calling `git_status_foreach_ext()` with
- * the pathspec set to the specified path.
+ * This tries to get status for the filename that you give.  If no files
+ * match that name (in either the HEAD, index, or working directory), this
+ * returns GIT_ENOTFOUND.
+ *
+ * If the name matches multiple files (for example, if the `path` names a
+ * directory or if running on a case- insensitive filesystem and yet the
+ * HEAD has two entries that both match the path), then this returns
+ * GIT_EAMBIGUOUS because it cannot give correct results.
+ *
+ * This does not do any sort of rename detection.  Renames require a set of
+ * targets and because of the path filtering, there is not enough
+ * information to check renames correctly.  To check file status with rename
+ * detection, there is no choice but to do a full `git_status_list_new` and
+ * scan through looking for the path that you are interested in.
  *
  * @param status_flags Output combination of git_status_t values for file
  * @param repo A repository object
@@ -269,6 +286,11 @@ GIT_EXTERN(int) git_status_file(
 /**
  * Gather file status information and populate the `git_status_list`.
  *
+ * Note that if a `pathspec` is given in the `git_status_options` to filter
+ * the status, then the results from rename detection (if you enable it) may
+ * not be accurate.  To do rename detection properly, this must be called
+ * with no `pathspec` so that all files can be considered.
+ *
  * @param out Pointer to store the status results in
  * @param repo Repository object
  * @param opts Status options structure
@@ -282,6 +304,9 @@ GIT_EXTERN(int) git_status_list_new(
 /**
  * Gets the count of status entries in this list.
  *
+ * If there are no changes in status (at least according the options given
+ * when the status list was created), this can return 0.
+ *
  * @param statuslist Existing status list object
  * @return the number of status entries
  */
diff --git a/tests/status/renames.c b/tests/status/renames.c
index df5e230..24b8aca 100644
--- a/tests/status/renames.c
+++ b/tests/status/renames.c
@@ -20,40 +20,36 @@ void test_status_renames__cleanup(void)
 	cl_git_sandbox_cleanup();
 }
 
-static void rename_file(git_repository *repo, const char *oldname, const char *newname)
+static void _rename_helper(
+	git_repository *repo, const char *from, const char *to, const char *extra)
 {
 	git_buf oldpath = GIT_BUF_INIT, newpath = GIT_BUF_INIT;
 
-	git_buf_joinpath(&oldpath, git_repository_workdir(repo), oldname);
-	git_buf_joinpath(&newpath, git_repository_workdir(repo), newname);
+	cl_git_pass(git_buf_joinpath(
+		&oldpath, git_repository_workdir(repo), from));
+	cl_git_pass(git_buf_joinpath(
+		&newpath, git_repository_workdir(repo), to));
 
 	cl_git_pass(p_rename(oldpath.ptr, newpath.ptr));
 
-	git_buf_free(&oldpath);
-	git_buf_free(&newpath);
-}
-
-static void rename_and_edit_file(git_repository *repo, const char *oldname, const char *newname)
-{
-	git_buf oldpath = GIT_BUF_INIT, newpath = GIT_BUF_INIT;
-
-	git_buf_joinpath(&oldpath, git_repository_workdir(repo), oldname);
-	git_buf_joinpath(&newpath, git_repository_workdir(repo), newname);
-
-	cl_git_pass(p_rename(oldpath.ptr, newpath.ptr));
-	cl_git_append2file(newpath.ptr, "Added at the end to keep similarity!");
+	if (extra)
+		cl_git_append2file(newpath.ptr, extra);
 
 	git_buf_free(&oldpath);
 	git_buf_free(&newpath);
 }
 
+#define rename_file(R,O,N) _rename_helper((R), (O), (N), NULL)
+#define rename_and_edit_file(R,O,N) \
+	_rename_helper((R), (O), (N), "Added at the end to keep similarity!")
+
 struct status_entry {
 	git_status_t status;
 	const char *oldname;
 	const char *newname;
 };
 
-static void test_status(
+static void check_status(
 	git_status_list *status_list,
 	struct status_entry *expected_list,
 	size_t expected_len)
@@ -61,9 +57,9 @@ static void test_status(
 	const git_status_entry *actual;
 	const struct status_entry *expected;
 	const char *oldname, *newname;
-	size_t i;
+	size_t i, files_in_status = git_status_list_entrycount(status_list);
 
-	cl_assert_equal_sz(expected_len, git_status_list_entrycount(status_list));
+	cl_assert_equal_sz(expected_len, files_in_status);
 
 	for (i = 0; i < expected_len; i++) {
 		actual = git_status_byindex(status_list, i);
@@ -82,10 +78,12 @@ static void test_status(
 		else
 			cl_assert(expected->oldname == NULL);
 
-		if (newname)
-			cl_assert(git__strcmp(newname, expected->newname) == 0);
-		else
-			cl_assert(expected->newname == NULL);
+		if (actual->status & (GIT_STATUS_INDEX_RENAMED|GIT_STATUS_WT_RENAMED)) {
+			if (newname)
+				cl_assert(git__strcmp(newname, expected->newname) == 0);
+			else
+				cl_assert(expected->newname == NULL);
+		}
 	}
 }
 
@@ -109,7 +107,7 @@ void test_status_renames__head2index_one(void)
 	cl_git_pass(git_index_write(index));
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 1);
+	check_status(statuslist, expected, 1);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -149,7 +147,7 @@ void test_status_renames__head2index_two(void)
 	cl_git_pass(git_index_write(index));
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 4);
+	check_status(statuslist, expected, 4);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -178,7 +176,7 @@ void test_status_renames__head2index_no_rename_from_rewrite(void)
 	cl_git_pass(git_index_write(index));
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 2);
+	check_status(statuslist, expected, 2);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -208,7 +206,7 @@ void test_status_renames__head2index_rename_from_rewrite(void)
 	cl_git_pass(git_index_write(index));
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 2);
+	check_status(statuslist, expected, 2);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -228,7 +226,7 @@ void test_status_renames__index2workdir_one(void)
 	rename_file(g_repo, "ikeepsix.txt", "newname.txt");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 1);
+	check_status(statuslist, expected, 1);
 	git_status_list_free(statuslist);
 }
 
@@ -254,7 +252,7 @@ void test_status_renames__index2workdir_two(void)
 	rename_and_edit_file(g_repo, "untimely.txt", "bbb.txt");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 4);
+	check_status(statuslist, expected, 4);
 	git_status_list_free(statuslist);
 }
 
@@ -278,7 +276,7 @@ void test_status_renames__index2workdir_rename_from_rewrite(void)
 	rename_file(g_repo, "_temp_.txt", "sixserving.txt");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 2);
+	check_status(statuslist, expected, 2);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -309,7 +307,7 @@ void test_status_renames__both_one(void)
 	rename_file(g_repo, "newname-index.txt", "newname-workdir.txt");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 1);
+	check_status(statuslist, expected, 1);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -355,7 +353,7 @@ void test_status_renames__both_two(void)
 	rename_file(g_repo, "untimely-index.txt", "untimely-both.txt");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 4);
+	check_status(statuslist, expected, 4);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -399,7 +397,7 @@ void test_status_renames__both_rename_from_rewrite(void)
 	rename_file(g_repo, "_temp_.txt", "sixserving.txt");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 3);
+	check_status(statuslist, expected, 3);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -440,7 +438,7 @@ void test_status_renames__rewrites_only_for_renames(void)
 		"This is enough content for the file to be rewritten.\n");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 1);
+	check_status(statuslist, expected, 1);
 	git_status_list_free(statuslist);
 
 	git_index_free(index);
@@ -481,7 +479,7 @@ void test_status_renames__both_casechange_one(void)
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
 
-	test_status(statuslist, (index_caps & GIT_INDEXCAP_IGNORE_CASE) ?
+	check_status(statuslist, (index_caps & GIT_INDEXCAP_IGNORE_CASE) ?
 		expected_icase : expected_case, 1);
 
 	git_status_list_free(statuslist);
@@ -548,7 +546,7 @@ void test_status_renames__both_casechange_two(void)
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
 
-	test_status(statuslist, (index_caps & GIT_INDEXCAP_IGNORE_CASE) ?
+	check_status(statuslist, (index_caps & GIT_INDEXCAP_IGNORE_CASE) ?
 		expected_icase : expected_case, 4);
 
 	git_status_list_free(statuslist);
@@ -579,6 +577,135 @@ void test_status_renames__zero_byte_file_does_not_fail(void)
 	cl_git_mkfile("renames/zerobyte.txt", "");
 
 	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
-	test_status(statuslist, expected, 2);
+	check_status(statuslist, expected, 2);
+	git_status_list_free(statuslist);
+}
+
+#ifdef GIT_USE_ICONV
+static char *nfc = "\xC3\x85\x73\x74\x72\xC3\xB6\x6D";
+static char *nfd = "\x41\xCC\x8A\x73\x74\x72\x6F\xCC\x88\x6D";
+#endif
+
+void test_status_renames__precomposed_unicode_rename(void)
+{
+#ifdef GIT_USE_ICONV
+	git_status_list *statuslist;
+	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
+	struct status_entry expected0[] = {
+		{ GIT_STATUS_WT_NEW, nfd, NULL },
+		{ GIT_STATUS_WT_DELETED, "sixserving.txt", NULL },
+	};
+	struct status_entry expected1[] = {
+		{ GIT_STATUS_WT_RENAMED, "sixserving.txt", nfd },
+	};
+	struct status_entry expected2[] = {
+		{ GIT_STATUS_WT_DELETED, "sixserving.txt", NULL },
+		{ GIT_STATUS_WT_NEW, nfc, NULL },
+	};
+	struct status_entry expected3[] = {
+		{ GIT_STATUS_WT_RENAMED, "sixserving.txt", nfc },
+	};
+
+	rename_file(g_repo, "sixserving.txt", nfc);
+
+	opts.flags |= GIT_STATUS_OPT_INCLUDE_UNTRACKED;
+
+	cl_repo_set_bool(g_repo, "core.precomposeunicode", false);
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected0, ARRAY_SIZE(expected0));
+	git_status_list_free(statuslist);
+
+	opts.flags |= GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR;
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected1, ARRAY_SIZE(expected1));
+	git_status_list_free(statuslist);
+
+	cl_repo_set_bool(g_repo, "core.precomposeunicode", true);
+
+	opts.flags &= ~GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR;
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected2, ARRAY_SIZE(expected2));
+	git_status_list_free(statuslist);
+
+	opts.flags |= GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR;
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected3, ARRAY_SIZE(expected3));
 	git_status_list_free(statuslist);
+#endif
 }
+
+void test_status_renames__precomposed_unicode_toggle_is_rename(void)
+{
+#ifdef GIT_USE_ICONV
+	git_status_list *statuslist;
+	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
+	struct status_entry expected0[] = {
+		{ GIT_STATUS_INDEX_RENAMED, "ikeepsix.txt", nfd },
+	};
+	struct status_entry expected1[] = {
+		{ GIT_STATUS_WT_RENAMED, nfd, nfc },
+	};
+	struct status_entry expected2[] = {
+		{ GIT_STATUS_INDEX_RENAMED, nfd, nfc },
+	};
+	struct status_entry expected3[] = {
+		{ GIT_STATUS_INDEX_RENAMED | GIT_STATUS_WT_RENAMED, nfd, nfd },
+	};
+
+	cl_repo_set_bool(g_repo, "core.precomposeunicode", false);
+	rename_file(g_repo, "ikeepsix.txt", nfd);
+
+	{
+		git_index *index;
+		cl_git_pass(git_repository_index(&index, g_repo));
+		cl_git_pass(git_index_remove_bypath(index, "ikeepsix.txt"));
+		cl_git_pass(git_index_add_bypath(index, nfd));
+		cl_git_pass(git_index_write(index));
+		git_index_free(index);
+	}
+
+	opts.flags |= GIT_STATUS_OPT_INCLUDE_UNTRACKED |
+		GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
+		GIT_STATUS_OPT_RENAMES_INDEX_TO_WORKDIR;
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected0, ARRAY_SIZE(expected0));
+	git_status_list_free(statuslist);
+
+	cl_repo_commit_from_index(NULL, g_repo, NULL, 0, "commit nfd");
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	cl_assert_equal_sz(0, git_status_list_entrycount(statuslist));
+	git_status_list_free(statuslist);
+
+	cl_repo_set_bool(g_repo, "core.precomposeunicode", true);
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected1, ARRAY_SIZE(expected1));
+	git_status_list_free(statuslist);
+
+	{
+		git_index *index;
+		cl_git_pass(git_repository_index(&index, g_repo));
+		cl_git_pass(git_index_remove_bypath(index, nfd));
+		cl_git_pass(git_index_add_bypath(index, nfc));
+		cl_git_pass(git_index_write(index));
+		git_index_free(index);
+	}
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected2, ARRAY_SIZE(expected2));
+	git_status_list_free(statuslist);
+
+	cl_repo_set_bool(g_repo, "core.precomposeunicode", false);
+
+	cl_git_pass(git_status_list_new(&statuslist, g_repo, &opts));
+	check_status(statuslist, expected3, ARRAY_SIZE(expected3));
+	git_status_list_free(statuslist);
+#endif
+}
+