notmuch-tag.c: convert to use tag-util

Command line parsing is factored out into a function
parse_tag_command_line in tag-util.c.

There is some duplicated code eliminated in tag_query, and a bunch of
translation from using the bare tag_op structs to using that tag-utils
API.

diff --git a/notmuch-tag.c b/notmuch-tag.c
index fc9d43a7cb21dc2187bea3ca2544495ff496c414..8129912bb70942ecae0cb6ab7f4c237b9fd53ea3 100644 (file)
--- a/notmuch-tag.c
+++ b/notmuch-tag.c
@@ -19,6 +19,7 @@
  */
 
 #include "notmuch-client.h"
+#include "tag-util.h"
 #include "string-util.h"
 
 static volatile sig_atomic_t interrupted;
@@ -36,14 +37,10 @@ handle_sigint (unused (int sig))
     interrupted = 1;
 }
 
-typedef struct {
-    const char *tag;
-    notmuch_bool_t remove;
-} tag_operation_t;
 
 static char *
 _optimize_tag_query (void *ctx, const char *orig_query_string,
-                    const tag_operation_t *tag_ops)
+                    const tag_op_list_t *list)
 {
     /* This is subtler than it looks.  Xapian ignores the '-' operator
      * at the beginning both queries and parenthesized groups and,
@@ -60,7 +57,7 @@ _optimize_tag_query (void *ctx, const char *orig_query_string,
     size_t i;
 
     /* Don't optimize if there are no tag changes. */
-    if (tag_ops[0].tag == NULL)
+    if (tag_op_list_size (list) == 0)
        return talloc_strdup (ctx, orig_query_string);
 
     /* Build the new query string */
@@ -69,17 +66,17 @@ _optimize_tag_query (void *ctx, const char *orig_query_string,
     else
        query_string = talloc_asprintf (ctx, "( %s ) and (", orig_query_string);
 
-    for (i = 0; tag_ops[i].tag && query_string; i++) {
+    for (i = 0; i < tag_op_list_size (list) && query_string; i++) {
        /* XXX in case of OOM, query_string will be deallocated when
         * ctx is, which might be at shutdown */
        if (make_boolean_term (ctx,
-                              "tag", tag_ops[i].tag,
+                              "tag", tag_op_list_tag (list, i),
                               &escaped, &escaped_len))
            return NULL;
 
        query_string = talloc_asprintf_append_buffer (
            query_string, "%s%s%s", join,
-           tag_ops[i].remove ? "" : "not ",
+           tag_op_list_isremove (list, i) ? "" : "not ",
            escaped);
        join = " or ";
     }
@@ -91,17 +88,15 @@ _optimize_tag_query (void *ctx, const char *orig_query_string,
     return query_string;
 }
 
-/* Tag messages matching 'query_string' according to 'tag_ops', which
- * must be an array of tagging operations terminated with an empty
- * element. */
+/* Tag messages matching 'query_string' according to 'tag_ops'
+ */
 static int
 tag_query (void *ctx, notmuch_database_t *notmuch, const char *query_string,
-          tag_operation_t *tag_ops, notmuch_bool_t synchronize_flags)
+          tag_op_list_t *tag_ops, tag_op_flag_t flags)
 {
     notmuch_query_t *query;
     notmuch_messages_t *messages;
     notmuch_message_t *message;
-    int i;
 
     /* Optimize the query so it excludes messages that already have
      * the specified set of tags. */
@@ -124,21 +119,7 @@ tag_query (void *ctx, notmuch_database_t *notmuch, const char *query_string,
         notmuch_messages_valid (messages) && ! interrupted;
         notmuch_messages_move_to_next (messages)) {
        message = notmuch_messages_get (messages);
-
-       notmuch_message_freeze (message);
-
-       for (i = 0; tag_ops[i].tag; i++) {
-           if (tag_ops[i].remove)
-               notmuch_message_remove_tag (message, tag_ops[i].tag);
-           else
-               notmuch_message_add_tag (message, tag_ops[i].tag);
-       }
-
-       notmuch_message_thaw (message);
-
-       if (synchronize_flags)
-           notmuch_message_tags_to_maildir_flags (message);
-
+       tag_op_list_apply (message, tag_ops, flags | TAG_FLAG_PRE_OPTIMIZED);
        notmuch_message_destroy (message);
     }
 
@@ -150,15 +131,13 @@ tag_query (void *ctx, notmuch_database_t *notmuch, const char *query_string,
 int
 notmuch_tag_command (void *ctx, int argc, char *argv[])
 {
-    tag_operation_t *tag_ops;
-    int tag_ops_count = 0;
-    char *query_string;
+    tag_op_list_t *tag_ops = NULL;
+    char *query_string = NULL;
     notmuch_config_t *config;
     notmuch_database_t *notmuch;
     struct sigaction action;
-    notmuch_bool_t synchronize_flags;
-    int i;
-    int ret;
+    tag_op_flag_t tag_flags = TAG_FLAG_NONE;
+    int ret = 0;
 
     /* Setup our handler for SIGINT */
     memset (&action, 0, sizeof (struct sigaction));
@@ -167,54 +146,15 @@ notmuch_tag_command (void *ctx, int argc, char *argv[])
     action.sa_flags = SA_RESTART;
     sigaction (SIGINT, &action, NULL);
 
-    argc--; argv++; /* skip subcommand argument */
-
-    /* Array of tagging operations (add or remove), terminated with an
-     * empty element. */
-    tag_ops = talloc_array (ctx, tag_operation_t, argc + 1);
+    tag_ops = tag_op_list_create (ctx);
     if (tag_ops == NULL) {
        fprintf (stderr, "Out of memory.\n");
        return 1;
     }
 
-    for (i = 0; i < argc; i++) {
-       if (strcmp (argv[i], "--") == 0) {
-           i++;
-           break;
-       }
-       if (argv[i][0] == '+' || argv[i][0] == '-') {
-           if (argv[i][0] == '+' && argv[i][1] == '\0') {
-               fprintf (stderr, "Error: tag names cannot be empty.\n");
-               return 1;
-           }
-           if (argv[i][0] == '+' && argv[i][1] == '-') {
-               /* This disallows adding the non-removable tag "-" and
-                * enables notmuch tag to take long options in the
-                * future. */
-               fprintf (stderr, "Error: tag names must not start with '-'.\n");
-               return 1;
-           }
-           tag_ops[tag_ops_count].tag = argv[i] + 1;
-           tag_ops[tag_ops_count].remove = (argv[i][0] == '-');
-           tag_ops_count++;
-       } else {
-           break;
-       }
-    }
-
-    tag_ops[tag_ops_count].tag = NULL;
-
-    if (tag_ops_count == 0) {
-       fprintf (stderr, "Error: 'notmuch tag' requires at least one tag to add or remove.\n");
-       return 1;
-    }
-
-    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");
+    if (parse_tag_command_line (ctx, argc - 1, argv + 1,
+                               &query_string, tag_ops))
        return 1;
-    }
 
     config = notmuch_config_open (ctx, NULL, NULL);
     if (config == NULL)
@@ -224,9 +164,10 @@ notmuch_tag_command (void *ctx, int argc, char *argv[])
                               NOTMUCH_DATABASE_MODE_READ_WRITE, &notmuch))
        return 1;
 
-    synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);
+    if (notmuch_config_get_maildir_synchronize_flags (config))
+       tag_flags |= TAG_FLAG_MAILDIR_SYNC;
 
-    ret = tag_query (ctx, notmuch, query_string, tag_ops, synchronize_flags);
+    ret = tag_query (ctx, notmuch, query_string, tag_ops, tag_flags);
 
     notmuch_database_destroy (notmuch);
 

diff --git a/tag-util.c b/tag-util.c
index 0a4fe789c61c90e0669f976801f348870ff5e541..701d329794b59a9c13f43a4e257ba752c944454a 100644 (file)
--- a/tag-util.c
+++ b/tag-util.c
@@ -45,8 +45,9 @@ illegal_tag (const char *tag, notmuch_bool_t remove)
     if (*tag == '\0' && ! remove)
        return "empty tag forbidden";
 
-    /* This disallows adding the non-removable tag "-" and
-     * enables notmuch tag to take long options more easily.
+    /* This disallows adding tags starting with "-", in particular the
+     * non-removable tag "-" and enables notmuch tag to take long
+     * options more easily.
      */
 
     if (*tag == '-' && ! remove)
@@ -157,6 +158,52 @@ parse_tag_line (void *ctx, char *line,
     return ret;
 }
 
+tag_parse_status_t
+parse_tag_command_line (void *ctx, int argc, char **argv,
+                       char **query_str, tag_op_list_t *tag_ops)
+{
+
+    int i;
+
+    tag_op_list_reset (tag_ops);
+
+    for (i = 0; i < argc; i++) {
+       if (strcmp (argv[i], "--") == 0) {
+           i++;
+           break;
+       }
+
+       if (argv[i][0] != '+' && argv[i][0] != '-')
+           break;
+
+       notmuch_bool_t is_remove = argv[i][0] == '-';
+       const char *msg;
+
+       msg = illegal_tag (argv[i] + 1, is_remove);
+       if (msg) {
+           fprintf (stderr, "Error: %s", msg);
+           return TAG_PARSE_INVALID;
+       }
+
+       tag_op_list_append (tag_ops, argv[i] + 1, is_remove);
+    }
+
+    if (tag_op_list_size (tag_ops) == 0) {
+       fprintf (stderr, "Error: 'notmuch tag' requires at least one tag to add or remove.\n");
+       return TAG_PARSE_INVALID;
+    }
+
+    *query_str = query_string_from_args (ctx, argc - i, &argv[i]);
+
+    if (*query_str == NULL || **query_str == '\0') {
+       fprintf (stderr, "Error: notmuch tag requires at least one search term.\n");
+       return TAG_PARSE_INVALID;
+    }
+
+    return TAG_PARSE_SUCCESS;
+}
+
+
 static inline void
 message_error (notmuch_message_t *message,
               notmuch_status_t status,

diff --git a/tag-util.h b/tag-util.h
index c07bfde5013fb720c93d15fa7653df185ce1276d..246de85ccb8f2a936f0adc6c50b6638607063f8d 100644 (file)
--- a/tag-util.h
+++ b/tag-util.h
@@ -72,6 +72,21 @@ parse_tag_line (void *ctx, char *line,
                tag_op_flag_t flags,
                char **query_str, tag_op_list_t *ops);
 
+
+
+/* Parse a command line of the following format:
+ *
+ * +<tag>|-<tag> [...] [--] <search-terms>
+ *
+ * Output Parameters:
+ *     ops     contains a list of tag operations
+ *     query_str the search terms.
+ */
+
+tag_parse_status_t
+parse_tag_command_line (void *ctx, int argc, char **argv,
+                       char **query_str, tag_op_list_t *ops);
+
 /*
  * Create an empty list of tag operations
  *