Blob


1 /*
2 * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
17 /* Error codes */
18 #define GOT_ERR_OK 0
19 #define GOT_ERR_ERRNO 1
20 #define GOT_ERR_NOT_GIT_REPO 2
21 #define GOT_ERR_NOT_ABSPATH 3
22 #define GOT_ERR_BAD_PATH 4
23 #define GOT_ERR_NOT_REF 5
24 #define GOT_ERR_IO 6
25 #define GOT_ERR_EOF 7
26 #define GOT_ERR_DECOMPRESSION 8
27 #define GOT_ERR_NO_SPACE 9
28 #define GOT_ERR_BAD_OBJ_HDR 10
29 #define GOT_ERR_OBJ_TYPE 11
30 #define GOT_ERR_BAD_OBJ_DATA 12
31 #define GOT_ERR_AMBIGUOUS_ID 13
32 #define GOT_ERR_BAD_PACKIDX 14
33 #define GOT_ERR_PACKIDX_CSUM 15
34 #define GOT_ERR_BAD_PACKFILE 16
35 #define GOT_ERR_NO_OBJ 17
36 #define GOT_ERR_NOT_IMPL 18
37 #define GOT_ERR_OBJ_NOT_PACKED 19
38 #define GOT_ERR_BAD_DELTA_CHAIN 20
39 #define GOT_ERR_BAD_DELTA 21
40 #define GOT_ERR_COMPRESSION 22
41 #define GOT_ERR_BAD_OBJ_ID_STR 23
42 #define GOT_ERR_WORKTREE_EXISTS 26
43 #define GOT_ERR_WORKTREE_META 27
44 #define GOT_ERR_WORKTREE_VERS 28
45 #define GOT_ERR_WORKTREE_BUSY 29
46 #define GOT_ERR_DIR_OBSTRUCTED 30
47 #define GOT_ERR_FILE_OBSTRUCTED 31
48 #define GOT_ERR_RECURSION 32
49 #define GOT_ERR_TIMEOUT 33
50 #define GOT_ERR_INTERRUPT 34
51 #define GOT_ERR_PRIVSEP_READ 35
52 #define GOT_ERR_PRIVSEP_LEN 36
53 #define GOT_ERR_PRIVSEP_PIPE 37
54 #define GOT_ERR_PRIVSEP_NO_FD 38
55 #define GOT_ERR_PRIVSEP_MSG 39
56 #define GOT_ERR_PRIVSEP_DIED 40
57 #define GOT_ERR_PRIVSEP_EXIT 41
58 #define GOT_ERR_PACK_OFFSET 42
59 #define GOT_ERR_OBJ_EXISTS 43
60 #define GOT_ERR_BAD_OBJ_ID 44
61 #define GOT_ERR_ITER_NEED_MORE 45
62 #define GOT_ERR_ITER_COMPLETED 46
63 #define GOT_ERR_RANGE 47
64 #define GOT_ERR_EXPECTED 48 /* for use in regress tests only */
65 #define GOT_ERR_CANCELLED 49
66 #define GOT_ERR_NO_TREE_ENTRY 50
67 #define GOT_ERR_FILEIDX_SIG 51
68 #define GOT_ERR_FILEIDX_VER 52
69 #define GOT_ERR_FILEIDX_CSUM 53
70 #define GOT_ERR_PATH_PREFIX 54
71 #define GOT_ERR_ANCESTRY 55
72 #define GOT_ERR_FILEIDX_BAD 56
73 #define GOT_ERR_BAD_REF_DATA 57
74 #define GOT_ERR_TREE_DUP_ENTRY 58
75 #define GOT_ERR_DIR_DUP_ENTRY 59
76 #define GOT_ERR_NOT_WORKTREE 60
77 #define GOT_ERR_UUID_VERSION 61
78 #define GOT_ERR_UUID_INVALID 62
79 #define GOT_ERR_UUID 63
80 #define GOT_ERR_LOCKFILE_TIMEOUT 64
81 #define GOT_ERR_BAD_REF_NAME 65
82 #define GOT_ERR_WORKTREE_REPO 66
83 #define GOT_ERR_FILE_MODIFIED 67
84 #define GOT_ERR_FILE_STATUS 68
85 #define GOT_ERR_COMMIT_CONFLICT 69
86 #define GOT_ERR_BAD_REF_TYPE 70
87 #define GOT_ERR_COMMIT_NO_AUTHOR 71
88 #define GOT_ERR_COMMIT_HEAD_CHANGED 72
89 #define GOT_ERR_COMMIT_OUT_OF_DATE 73
90 #define GOT_ERR_COMMIT_MSG_EMPTY 74
91 #define GOT_ERR_DIR_NOT_EMPTY 75
92 #define GOT_ERR_COMMIT_NO_CHANGES 76
93 #define GOT_ERR_BRANCH_MOVED 77
94 #define GOT_ERR_OBJ_TOO_LARGE 78
95 #define GOT_ERR_SAME_BRANCH 79
96 #define GOT_ERR_ROOT_COMMIT 80
97 #define GOT_ERR_MIXED_COMMITS 81
98 #define GOT_ERR_CONFLICTS 82
99 #define GOT_ERR_BRANCH_EXISTS 83
100 #define GOT_ERR_MODIFIED 84
101 #define GOT_ERR_NOT_REBASING 85
102 #define GOT_ERR_EMPTY_REBASE 86
103 #define GOT_ERR_REBASE_COMMITID 87
104 #define GOT_ERR_REBASING 88
105 #define GOT_ERR_REBASE_PATH 89
106 #define GOT_ERR_NOT_HISTEDIT 90
107 #define GOT_ERR_EMPTY_HISTEDIT 91
108 #define GOT_ERR_NO_HISTEDIT_CMD 92
109 #define GOT_ERR_HISTEDIT_SYNTAX 93
110 #define GOT_ERR_HISTEDIT_CANCEL 94
111 #define GOT_ERR_HISTEDIT_COMMITID 95
112 #define GOT_ERR_HISTEDIT_BUSY 96
113 #define GOT_ERR_HISTEDIT_CMD 97
114 #define GOT_ERR_HISTEDIT_PATH 98
115 #define GOT_ERR_NO_MERGED_PATHS 99
116 #define GOT_ERR_COMMIT_BRANCH 100
117 #define GOT_ERR_FILE_STAGED 101
118 #define GOT_ERR_STAGE_NO_CHANGE 102
119 #define GOT_ERR_STAGE_CONFLICT 103
120 #define GOT_ERR_STAGE_OUT_OF_DATE 104
121 #define GOT_ERR_FILE_NOT_STAGED 105
122 #define GOT_ERR_STAGED_PATHS 106
123 #define GOT_ERR_PATCH_CHOICE 107
124 #define GOT_ERR_COMMIT_NO_EMAIL 108
125 #define GOT_ERR_TAG_EXISTS 109
126 #define GOT_ERR_GIT_REPO_FORMAT 110
128 static const struct got_error {
129 int code;
130 const char *msg;
131 } got_errors[] = {
132 { GOT_ERR_OK, "no error occured?!?" },
133 { GOT_ERR_ERRNO, "see errno" },
134 { GOT_ERR_NOT_GIT_REPO, "no git repository found" },
135 { GOT_ERR_NOT_ABSPATH, "absolute path expected" },
136 { GOT_ERR_BAD_PATH, "bad path" },
137 { GOT_ERR_NOT_REF, "no such reference found" },
138 { GOT_ERR_IO, "input/output error" },
139 { GOT_ERR_EOF, "unexpected end of file" },
140 { GOT_ERR_DECOMPRESSION,"decompression failed" },
141 { GOT_ERR_NO_SPACE, "buffer too small" },
142 { GOT_ERR_BAD_OBJ_HDR, "bad object header" },
143 { GOT_ERR_OBJ_TYPE, "wrong type of object" },
144 { GOT_ERR_BAD_OBJ_DATA, "bad object data" },
145 { GOT_ERR_AMBIGUOUS_ID, "ambiguous object ID" },
146 { GOT_ERR_BAD_PACKIDX, "bad pack index file" },
147 { GOT_ERR_PACKIDX_CSUM, "pack index file checksum error" },
148 { GOT_ERR_BAD_PACKFILE, "bad pack file" },
149 { GOT_ERR_NO_OBJ, "object not found" },
150 { GOT_ERR_NOT_IMPL, "feature not implemented" },
151 { GOT_ERR_OBJ_NOT_PACKED,"object is not packed" },
152 { GOT_ERR_BAD_DELTA_CHAIN,"bad delta chain" },
153 { GOT_ERR_BAD_DELTA, "bad delta" },
154 { GOT_ERR_COMPRESSION, "compression failed" },
155 { GOT_ERR_BAD_OBJ_ID_STR,"bad object id string" },
156 { GOT_ERR_WORKTREE_EXISTS,"worktree already exists" },
157 { GOT_ERR_WORKTREE_META,"bad worktree meta data" },
158 { GOT_ERR_WORKTREE_VERS,"unsupported worktree format version" },
159 { GOT_ERR_WORKTREE_BUSY,"worktree already locked" },
160 { GOT_ERR_FILE_OBSTRUCTED,"file is obstructed" },
161 { GOT_ERR_RECURSION, "recursion limit reached" },
162 { GOT_ERR_TIMEOUT, "operation timed out" },
163 { GOT_ERR_INTERRUPT, "operation interrupted" },
164 { GOT_ERR_PRIVSEP_READ, "no data received in imsg" },
165 { GOT_ERR_PRIVSEP_LEN, "unexpected amount of data received in imsg" },
166 { GOT_ERR_PRIVSEP_PIPE, "privsep peer process closed pipe" },
167 { GOT_ERR_PRIVSEP_NO_FD,"privsep file descriptor unavailable" },
168 { GOT_ERR_PRIVSEP_MSG, "received unexpected privsep message" },
169 { GOT_ERR_PRIVSEP_DIED, "unprivileged process died unexpectedly" },
170 { GOT_ERR_PRIVSEP_EXIT, "bad exit code from unprivileged process" },
171 { GOT_ERR_PACK_OFFSET, "bad offset in pack file" },
172 { GOT_ERR_OBJ_EXISTS, "object already exists" },
173 { GOT_ERR_BAD_OBJ_ID, "bad object id" },
174 { GOT_ERR_ITER_NEED_MORE,"more items needed to continue iteration" },
175 { GOT_ERR_ITER_COMPLETED,"iteration completed" },
176 { GOT_ERR_RANGE, "value out of range" },
177 { GOT_ERR_EXPECTED, "expected an error but have no error" },
178 { GOT_ERR_CANCELLED, "operation in progress has been cancelled" },
179 { GOT_ERR_NO_TREE_ENTRY,"no such entry found in tree" },
180 { GOT_ERR_FILEIDX_SIG, "bad file index signature" },
181 { GOT_ERR_FILEIDX_VER, "unknown file index format version" },
182 { GOT_ERR_FILEIDX_CSUM, "bad file index checksum" },
183 { GOT_ERR_PATH_PREFIX, "worktree already contains items from a "
184 "different path prefix" },
185 { GOT_ERR_ANCESTRY, "target commit is on a different branch" },
186 { GOT_ERR_FILEIDX_BAD, "file index is corrupt" },
187 { GOT_ERR_BAD_REF_DATA, "could not parse reference data" },
188 { GOT_ERR_TREE_DUP_ENTRY,"duplicate entry in tree object" },
189 { GOT_ERR_DIR_DUP_ENTRY,"duplicate entry in directory" },
190 { GOT_ERR_NOT_WORKTREE, "no got work tree found" },
191 { GOT_ERR_UUID_VERSION, "bad uuid version" },
192 { GOT_ERR_UUID_INVALID, "uuid invalid" },
193 { GOT_ERR_UUID, "uuid error" },
194 { GOT_ERR_LOCKFILE_TIMEOUT,"lockfile timeout" },
195 { GOT_ERR_BAD_REF_NAME, "bad reference name" },
196 { GOT_ERR_WORKTREE_REPO,"cannot create worktree inside a git repository" },
197 { GOT_ERR_FILE_MODIFIED,"file contains modifications" },
198 { GOT_ERR_FILE_STATUS, "file has unexpected status" },
199 { GOT_ERR_COMMIT_CONFLICT,"cannot commit file in conflicted status" },
200 { GOT_ERR_BAD_REF_TYPE, "bad reference type" },
201 { GOT_ERR_COMMIT_NO_AUTHOR,"GOT_AUTHOR environment variable is not set" },
202 { GOT_ERR_COMMIT_HEAD_CHANGED, "branch head in repository has changed "
203 "while commit was in progress" },
204 { GOT_ERR_COMMIT_OUT_OF_DATE, "work tree must be updated before these "
205 "changes can be committed" },
206 { GOT_ERR_COMMIT_MSG_EMPTY, "commit message cannot be empty" },
207 { GOT_ERR_DIR_NOT_EMPTY, "directory exists and is not empty" },
208 { GOT_ERR_COMMIT_NO_CHANGES, "no changes to commit" },
209 { GOT_ERR_BRANCH_MOVED, "work tree's head reference now points to a "
210 "different branch; new head reference and/or update -b required" },
211 { GOT_ERR_OBJ_TOO_LARGE, "object too large" },
212 { GOT_ERR_SAME_BRANCH, "commit is already contained in this branch" },
213 { GOT_ERR_ROOT_COMMIT, "specified commit has no parent commit" },
214 { GOT_ERR_MIXED_COMMITS,"work tree contains files from multiple "
215 "base commits; the entire work tree must be updated first" },
216 { GOT_ERR_CONFLICTS, "work tree contains conflicted files; these "
217 "conflicts must be resolved first" },
218 { GOT_ERR_BRANCH_EXISTS,"specified branch already exists" },
219 { GOT_ERR_MODIFIED, "work tree contains local changes; these "
220 "changes must be committed or reverted first" },
221 { GOT_ERR_NOT_REBASING, "rebase operation not in progress" },
222 { GOT_ERR_EMPTY_REBASE, "no commits to rebase" },
223 { GOT_ERR_REBASE_COMMITID,"rebase commit ID mismatch" },
224 { GOT_ERR_REBASING, "a rebase operation is in progress in this "
225 "work tree and must be continued or aborted first" },
226 { GOT_ERR_REBASE_PATH, "cannot rebase branch which contains "
227 "changes outside of this work tree's path prefix" },
228 { GOT_ERR_NOT_HISTEDIT, "histedit operation not in progress" },
229 { GOT_ERR_EMPTY_HISTEDIT,"no commits to edit; perhaps the work tree "
230 "must be updated to an older commit first" },
231 { GOT_ERR_NO_HISTEDIT_CMD,"no histedit commands provided" },
232 { GOT_ERR_HISTEDIT_SYNTAX,"syntax error in histedit command list" },
233 { GOT_ERR_HISTEDIT_CANCEL,"histedit operation cancelled" },
234 { GOT_ERR_HISTEDIT_COMMITID,"histedit commit ID mismatch" },
235 { GOT_ERR_HISTEDIT_BUSY,"histedit operation is in progress in this "
236 "work tree and must be continued or aborted first" },
237 { GOT_ERR_HISTEDIT_CMD, "bad histedit command" },
238 { GOT_ERR_HISTEDIT_PATH, "cannot edit branch history which contains "
239 "changes outside of this work tree's path prefix" },
240 { GOT_ERR_NO_MERGED_PATHS, "empty list of merged paths" },
241 { GOT_ERR_COMMIT_BRANCH, "will not commit to a branch outside the "
242 "\"refs/heads/\" reference namespace" },
243 { GOT_ERR_FILE_STAGED, "file is staged" },
244 { GOT_ERR_STAGE_NO_CHANGE, "no changes to stage" },
245 { GOT_ERR_STAGE_CONFLICT, "cannot stage file in conflicted status" },
246 { GOT_ERR_STAGE_OUT_OF_DATE, "work tree must be updated before "
247 "changes can be staged" },
248 { GOT_ERR_FILE_NOT_STAGED, "file is not staged" },
249 { GOT_ERR_STAGED_PATHS, "work tree contains files with staged "
250 "changes; these changes must be committed or unstaged first" },
251 { GOT_ERR_PATCH_CHOICE, "invalid patch choice" },
252 { GOT_ERR_COMMIT_NO_EMAIL,"GOT_AUTHOR environment variable contains "
253 "no email address; an email address is required for compatibility "
254 "with Git" },
255 { GOT_ERR_TAG_EXISTS,"specified tag already exists" },
256 { GOT_ERR_GIT_REPO_FORMAT,"unknown git repository format version" },
257 };
259 /*
260 * Get an error object from the above list, for a given error code.
261 * The error message is fixed.
262 */
263 const struct got_error *got_error(int);
265 /*
266 * Get an error object from the above list, for a given error code.
267 * Use the specified error message instead of the default one.
268 * Caution: If the message buffer lives in dynamically allocated memory,
269 * then this memory likely won't be freed.
270 */
271 const struct got_error *got_error_msg(int, const char *);
273 /*
274 * Get a statically allocated error object with code GOT_ERR_ERRNO
275 * and an error message obtained from strerror(3), prefixed with a
276 * string.
277 */
278 const struct got_error *got_error_from_errno(const char *);
280 /*
281 * Get a statically allocated error object with code GOT_ERR_ERRNO
282 * and an error message obtained from strerror(3), prefixed with two
283 * strings.
284 */
285 const struct got_error *got_error_from_errno2(const char *, const char *);
287 /*
288 * Get a statically allocated error object with code GOT_ERR_ERRNO
289 * and an error message obtained from strerror(3), prefixed with three
290 * strings.
291 */
292 const struct got_error *got_error_from_errno3(const char *, const char *,
293 const char *);
295 /*
296 * Set errno to the specified error code and return a statically
297 * allocated error object with code GOT_ERR_ERRNO and an error
298 * message obtained from strerror(3), optionally prefixed with a
299 * string.
300 */
301 const struct got_error *got_error_set_errno(int, const char *);
303 /*
304 * If ferror(3) indicates an error status for the FILE, obtain an error
305 * from got_error_from_errno(). Else, obtain the error via got_error()
306 * with the error code provided in the second argument.
307 */
308 const struct got_error *got_ferror(FILE *, int);
310 /*
311 * Obtain an error with code GOT_ERR_NO_OBJ and an error message which
312 * contains the specified object ID. The message buffer is statically
313 * allocated; future invocations of this function will overwrite the
314 * message set during earlier invocations.
315 */
316 struct got_object_id; /* forward declaration */
317 const struct got_error *got_error_no_obj(struct got_object_id *);
319 /*
320 * Obtain an error with code GOT_ERR_NOT_REF and an error message which
321 * contains the specified reference name. The message buffer is statically
322 * allocated; future invocations of this function will overwrite the
323 * message set during earlier invocations.
324 */
325 const struct got_error *got_error_not_ref(const char *);
327 /* Return an error based on a uuid(3) status code. */
328 const struct got_error *got_error_uuid(uint32_t, const char *);
330 /* Return an error with a path prefixed to the error message. */
331 const struct got_error *got_error_path(const char *, int);