2 #include "string-util.h"
4 #include "hex-escape.h"
6 #define TAG_OP_LIST_INITIAL_SIZE 10
8 struct _tag_operation_t {
10 notmuch_bool_t remove;
13 struct _tag_op_list_t {
19 static tag_parse_status_t
20 line_error (tag_parse_status_t status,
22 const char *format, ...)
26 va_start (va_args, format);
28 fprintf (stderr, status < 0 ? "Error: " : "Warning: ");
29 vfprintf (stderr, format, va_args);
30 fprintf (stderr, " [%s]\n", line);
35 illegal_tag (const char *tag, notmuch_bool_t remove)
37 if (*tag == '\0' && ! remove)
38 return "empty tag forbidden";
40 /* This disallows adding tags starting with "-", in particular the
41 * non-removable tag "-" and enables notmuch tag to take long
42 * options more easily.
45 if (*tag == '-' && ! remove)
46 return "tag starting with '-' forbidden";
52 parse_tag_line (void *ctx, char *line,
55 tag_op_list_t *tag_ops)
60 tag_parse_status_t ret = TAG_PARSE_SUCCESS;
64 line_for_error = talloc_strdup (ctx, line);
65 if (line_for_error == NULL) {
66 fprintf (stderr, "Error: out of memory\n");
67 return TAG_PARSE_OUT_OF_MEMORY;
70 /* remove leading space */
71 while (*tok == ' ' || *tok == '\t')
74 /* Skip empty and comment lines. */
75 if (*tok == '\0' || *tok == '#') {
76 ret = TAG_PARSE_SKIPPED;
80 tag_op_list_reset (tag_ops);
83 while ((tok = strtok_len (tok + tok_len, " ", &tok_len)) != NULL) {
84 notmuch_bool_t remove;
87 /* Optional explicit end of tags marker. */
88 if (tok_len == 2 && strncmp (tok, "--", tok_len) == 0) {
89 tok = strtok_len (tok + tok_len, " ", &tok_len);
91 ret = line_error (TAG_PARSE_INVALID, line_for_error,
92 "no query string after --");
98 /* Implicit end of tags. */
99 if (*tok != '-' && *tok != '+')
102 /* If tag is terminated by NUL, there's no query string. */
103 if (*(tok + tok_len) == '\0') {
104 ret = line_error (TAG_PARSE_INVALID, line_for_error,
109 /* Terminate, and start next token after terminator. */
110 *(tok + tok_len++) = '\0';
112 remove = (*tok == '-');
115 /* Maybe refuse illegal tags. */
116 if (! (flags & TAG_FLAG_BE_GENEROUS)) {
117 const char *msg = illegal_tag (tag, remove);
119 ret = line_error (TAG_PARSE_INVALID, line_for_error, msg);
125 if (hex_decode_inplace (tag) != HEX_SUCCESS) {
126 ret = line_error (TAG_PARSE_INVALID, line_for_error,
127 "hex decoding of tag %s failed", tag);
131 if (tag_op_list_append (tag_ops, tag, remove)) {
132 ret = line_error (TAG_PARSE_OUT_OF_MEMORY, line_for_error,
139 /* use a different error message for testing */
140 ret = line_error (TAG_PARSE_INVALID, line_for_error,
141 "missing query string");
145 /* tok now points to the query string */
149 talloc_free (line_for_error);
154 parse_tag_command_line (void *ctx, int argc, char **argv,
155 char **query_str, tag_op_list_t *tag_ops)
159 for (i = 0; i < argc; i++) {
160 if (strcmp (argv[i], "--") == 0) {
165 if (argv[i][0] != '+' && argv[i][0] != '-')
168 notmuch_bool_t is_remove = argv[i][0] == '-';
171 msg = illegal_tag (argv[i] + 1, is_remove);
173 fprintf (stderr, "Error: %s\n", msg);
174 return TAG_PARSE_INVALID;
177 tag_op_list_append (tag_ops, argv[i] + 1, is_remove);
180 *query_str = query_string_from_args (ctx, argc - i, &argv[i]);
182 if (*query_str == NULL) {
183 fprintf (stderr, "Out of memory.\n");
184 return TAG_PARSE_OUT_OF_MEMORY;
187 return TAG_PARSE_SUCCESS;
192 message_error (notmuch_message_t *message,
193 notmuch_status_t status,
194 const char *format, ...)
198 va_start (va_args, format);
200 vfprintf (stderr, format, va_args);
201 fprintf (stderr, "Message-ID: %s\n", notmuch_message_get_message_id (message));
202 fprintf (stderr, "Status: %s\n", notmuch_status_to_string (status));
206 makes_changes (notmuch_message_t *message,
212 notmuch_tags_t *tags;
213 notmuch_bool_t changes = FALSE;
215 /* First, do we delete an existing tag? */
217 for (tags = notmuch_message_get_tags (message);
218 ! changes && notmuch_tags_valid (tags);
219 notmuch_tags_move_to_next (tags)) {
220 const char *cur_tag = notmuch_tags_get (tags);
221 int last_op = (flags & TAG_FLAG_REMOVE_ALL) ? -1 : 0;
223 /* scan backwards to get last operation */
227 if (strcmp (cur_tag, list->ops[i].tag) == 0) {
228 last_op = list->ops[i].remove ? -1 : 1;
233 changes = (last_op == -1);
235 notmuch_tags_destroy (tags);
240 /* Now check for adding new tags */
241 for (i = 0; i < list->count; i++) {
242 notmuch_bool_t exists = FALSE;
244 if (list->ops[i].remove)
247 for (tags = notmuch_message_get_tags (message);
248 notmuch_tags_valid (tags);
249 notmuch_tags_move_to_next (tags)) {
250 const char *cur_tag = notmuch_tags_get (tags);
251 if (strcmp (cur_tag, list->ops[i].tag) == 0) {
256 notmuch_tags_destroy (tags);
258 /* the following test is conservative,
259 * in the sense it ignores cases like +foo ... -foo
260 * but this is OK from a correctness point of view
270 tag_op_list_apply (notmuch_message_t *message,
275 notmuch_status_t status = 0;
276 tag_operation_t *tag_ops = list->ops;
278 if (! (flags & TAG_FLAG_PRE_OPTIMIZED) && ! makes_changes (message, list, flags))
279 return NOTMUCH_STATUS_SUCCESS;
281 status = notmuch_message_freeze (message);
283 message_error (message, status, "freezing message");
287 if (flags & TAG_FLAG_REMOVE_ALL) {
288 status = notmuch_message_remove_all_tags (message);
290 message_error (message, status, "removing all tags");
295 for (i = 0; i < list->count; i++) {
296 if (tag_ops[i].remove) {
297 status = notmuch_message_remove_tag (message, tag_ops[i].tag);
299 message_error (message, status, "removing tag %s", tag_ops[i].tag);
303 status = notmuch_message_add_tag (message, tag_ops[i].tag);
305 message_error (message, status, "adding tag %s", tag_ops[i].tag);
312 status = notmuch_message_thaw (message);
314 message_error (message, status, "thawing message");
319 if (flags & TAG_FLAG_MAILDIR_SYNC) {
320 status = notmuch_message_tags_to_maildir_flags (message);
322 message_error (message, status, "synching tags to maildir");
327 return NOTMUCH_STATUS_SUCCESS;
332 /* Array of tagging operations (add or remove. Size will be increased
336 tag_op_list_create (void *ctx)
340 list = talloc (ctx, tag_op_list_t);
344 list->size = TAG_OP_LIST_INITIAL_SIZE;
347 list->ops = talloc_array (list, tag_operation_t, list->size);
348 if (list->ops == NULL)
356 tag_op_list_append (tag_op_list_t *list,
358 notmuch_bool_t remove)
360 /* Make room if current array is full. This should be a fairly
361 * rare case, considering the initial array size.
364 if (list->count == list->size) {
366 list->ops = talloc_realloc (list, list->ops, tag_operation_t,
368 if (list->ops == NULL) {
369 fprintf (stderr, "Out of memory.\n");
374 /* add the new operation */
376 list->ops[list->count].tag = tag;
377 list->ops[list->count].remove = remove;
383 * Is the i'th tag operation a remove?
387 tag_op_list_isremove (const tag_op_list_t *list, size_t i)
389 assert (i < list->count);
390 return list->ops[i].remove;
394 * Reset a list to contain no operations
398 tag_op_list_reset (tag_op_list_t *list)
404 * Return the number of operations in a list
408 tag_op_list_size (const tag_op_list_t *list)
414 * return the i'th tag in the list
418 tag_op_list_tag (const tag_op_list_t *list, size_t i)
420 assert (i < list->count);
421 return list->ops[i].tag;