#include "notmuch-client.h"
+static volatile sig_atomic_t interrupted;
+
+static void
+handle_sigint (unused (int sig))
+{
+ static char msg[] = "Stopping... \n";
+
+ /* This write is "opportunistic", so it's okay to ignore the
+ * result. It is not required for correctness, and if it does
+ * fail or produce a short write, we want to get out of the signal
+ * handler as quickly as possible, not retry it. */
+ IGNORE_RESULT (write (2, msg, sizeof(msg)-1));
+ interrupted = 1;
+}
+
+static char *
+_escape_tag (char *buf, const char *tag)
+{
+ const char *in = tag;
+ char *out = buf;
+ /* Boolean terms surrounded by double quotes can contain any
+ * character. Double quotes are quoted by doubling them. */
+ *out++ = '"';
+ while (*in) {
+ if (*in == '"')
+ *out++ = '"';
+ *out++ = *in++;
+ }
+ *out++ = '"';
+ *out = 0;
+ return buf;
+}
+
+static char *
+_optimize_tag_query (void *ctx, const char *orig_query_string, char *argv[],
+ int *add_tags, int add_tags_count,
+ int *remove_tags, int remove_tags_count)
+{
+ /* This is subtler than it looks. Xapian ignores the '-' operator
+ * at the beginning both queries and parenthesized groups and,
+ * furthermore, the presence of a '-' operator at the beginning of
+ * a group can inhibit parsing of the previous operator. Hence,
+ * the user-provided query MUST appear first, but it is safe to
+ * parenthesize and the exclusion part of the query must not use
+ * the '-' operator (though the NOT operator is fine). */
+
+ char *escaped, *query_string;
+ const char *join = "";
+ int i;
+ unsigned int max_tag_len = 0;
+
+ /* Allocate a buffer for escaping tags. This is large enough to
+ * hold a fully escaped tag with every character doubled plus
+ * enclosing quotes and a NUL. */
+ for (i = 0; i < add_tags_count; i++)
+ if (strlen (argv[add_tags[i]] + 1) > max_tag_len)
+ max_tag_len = strlen (argv[add_tags[i]] + 1);
+ for (i = 0; i < remove_tags_count; i++)
+ if (strlen (argv[remove_tags[i]] + 1) > max_tag_len)
+ max_tag_len = strlen (argv[remove_tags[i]] + 1);
+ escaped = talloc_array(ctx, char, max_tag_len * 2 + 3);
+ if (!escaped)
+ return NULL;
+
+ /* Build the new query string */
+ if (strcmp (orig_query_string, "*") == 0)
+ query_string = talloc_strdup (ctx, "(");
+ else
+ query_string = talloc_asprintf (ctx, "( %s ) and (", orig_query_string);
+
+ for (i = 0; i < add_tags_count && query_string; i++) {
+ query_string = talloc_asprintf_append_buffer (
+ query_string, "%snot tag:%s", join,
+ _escape_tag (escaped, argv[add_tags[i]] + 1));
+ join = " or ";
+ }
+ for (i = 0; i < remove_tags_count && query_string; i++) {
+ query_string = talloc_asprintf_append_buffer (
+ query_string, "%stag:%s", join,
+ _escape_tag (escaped, argv[remove_tags[i]] + 1));
+ join = " or ";
+ }
+
+ if (query_string)
+ query_string = talloc_strdup_append_buffer (query_string, ")");
+
+ talloc_free (escaped);
+ return query_string;
+}
+
int
-notmuch_tag_command (void *ctx, unused (int argc), unused (char *argv[]))
+notmuch_tag_command (void *ctx, int argc, char *argv[])
{
- void *local;
int *add_tags, *remove_tags;
int add_tags_count = 0;
int remove_tags_count = 0;
char *query_string;
- notmuch_database_t *notmuch = NULL;
+ notmuch_config_t *config;
+ notmuch_database_t *notmuch;
notmuch_query_t *query;
notmuch_messages_t *messages;
notmuch_message_t *message;
- int ret = 0;
+ struct sigaction action;
+ notmuch_bool_t synchronize_flags;
int i;
- local = talloc_new (ctx);
- if (local == NULL) {
- ret = 1;
- goto DONE;
- }
+ /* Setup our handler for SIGINT */
+ memset (&action, 0, sizeof (struct sigaction));
+ action.sa_handler = handle_sigint;
+ sigemptyset (&action.sa_mask);
+ action.sa_flags = SA_RESTART;
+ sigaction (SIGINT, &action, NULL);
- add_tags = talloc_size (local, argc * sizeof (int));
+ add_tags = talloc_size (ctx, argc * sizeof (int));
if (add_tags == NULL) {
- ret = 1;
- goto DONE;
+ fprintf (stderr, "Out of memory.\n");
+ return 1;
}
- remove_tags = talloc_size (local, argc * sizeof (int));
+ remove_tags = talloc_size (ctx, argc * sizeof (int));
if (remove_tags == NULL) {
- ret = 1;
- goto DONE;
+ fprintf (stderr, "Out of memory.\n");
+ return 1;
}
+ argc--; argv++; /* skip subcommand argument */
+
for (i = 0; i < argc; i++) {
if (strcmp (argv[i], "--") == 0) {
i++;
if (add_tags_count == 0 && remove_tags_count == 0) {
fprintf (stderr, "Error: 'notmuch tag' requires at least one tag to add or remove.\n");
- ret = 1;
- goto DONE;
+ return 1;
}
- if (i == argc) {
- fprintf (stderr, "Error: 'notmuch tag' requires at least one search term.\n");
- ret = 1;
- goto DONE;
+ query_string = query_string_from_args (ctx, argc - i, &argv[i]);
+
+ if (*query_string == '\0') {
+ fprintf (stderr, "Error: notmuch tag requires at least one search term.\n");
+ return 1;
}
- notmuch = notmuch_database_open (NULL);
- if (notmuch == NULL) {
- ret = 1;
- goto DONE;
+ /* Optimize the query so it excludes messages that already have
+ * the specified set of tags. */
+ query_string = _optimize_tag_query (ctx, query_string, argv,
+ add_tags, add_tags_count,
+ remove_tags, remove_tags_count);
+ if (query_string == NULL) {
+ fprintf (stderr, "Out of memory.\n");
+ return 1;
}
- query_string = query_string_from_args (local, argc - i, &argv[i]);
+ config = notmuch_config_open (ctx, NULL, NULL);
+ if (config == NULL)
+ return 1;
+
+ notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
+ NOTMUCH_DATABASE_MODE_READ_WRITE);
+ if (notmuch == NULL)
+ return 1;
+
+ synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);
query = notmuch_query_create (notmuch, query_string);
if (query == NULL) {
fprintf (stderr, "Out of memory.\n");
- ret = 1;
- goto DONE;
+ return 1;
}
+ /* tagging is not interested in any special sort order */
+ notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
+
for (messages = notmuch_query_search_messages (query);
- notmuch_messages_has_more (messages);
- notmuch_messages_advance (messages))
+ notmuch_messages_valid (messages) && !interrupted;
+ notmuch_messages_move_to_next (messages))
{
message = notmuch_messages_get (messages);
notmuch_message_thaw (message);
+ if (synchronize_flags)
+ notmuch_message_tags_to_maildir_flags (message);
+
notmuch_message_destroy (message);
}
notmuch_query_destroy (query);
+ notmuch_database_close (notmuch);
- DONE:
- if (notmuch)
- notmuch_database_close (notmuch);
-
- talloc_free (local);
-
- return ret;
+ return interrupted;
}
projects / notmuch / blobdiff