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+From: Jani Nikula <jani@nikula.org>\r
+To: Tomi Ollila <tomi.ollila@iki.fi>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH v2 2/3] cli: refactor "notmuch tag" query tagging into a\r
+ separate function\r
+In-Reply-To: <m262dse7f0.fsf@guru.guru-group.fi>\r
+References: <cover.1332702915.git.jani@nikula.org>\r
+ <584067da00dd9f04a7f3982b76fd4b4918e4fe61.1332702915.git.jani@nikula.org>User-Agent: Notmuch/0.12+71~gdacf76b (http://notmuchmail.org) Emacs/23.3.1\r
+ (x86_64-unknown-linux-gnu) <m262dse7f0.fsf@guru.guru-group.fi>\r
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+Date: Mon, 26 Mar 2012 00:10:47 +0300\r
+Message-ID: <87limo2xpk.fsf@nikula.org>\r
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+\r
+On Sun, 25 Mar 2012 23:45:39 +0300, Tomi Ollila <tomi.ollila@iki.fi> wrote:\r
+> Jani Nikula <jani@nikula.org> writes:\r
+> \r
+> > Refactor to make tagging code easier to reuse in the future. No\r
+> > functional changes.\r
+> >\r
+> > Signed-off-by: Jani Nikula <jani@nikula.org>\r
+> > ---\r
+> \r
+> tag_query() is pretty generic name for a function which (also) does\r
+> tagging operations (adds and removes tags based on tag_ops).\r
+\r
+Mmmh, if you think of "tag" as a verb, it fairly accurately describes\r
+what the function does: tag (messages matching this) query (according\r
+given arguments). I don't mind changing, but can't come up with anything\r
+better right now either. notmuch_{search,query}_change_tags()? Meh?\r
+\r
+> If, however, tag_opts != NULL (as is needs to be) but tag_opts[0] == NULL\r
+> (now tag_query() would not do any tagging operations, but\r
+> optimize_tag_query would mangle query string ( '*' to '()' and \r
+> 'any_other' to '( any_other ) and ()' )\r
+\r
+I'm not sure I follow you. AFAICT the behaviour does not change from\r
+what it was before, apart from the tag addition and removal being mixed\r
+together.\r
+\r
+> I.e. IMO the function name should be more spesific & the fact that this\r
+> function needs tag changing data in tag_ops array should be documented.\r
+\r
+Documentation good. :)\r
+\r
+> Minor thing in patch #1:\r
+> \r
+> + tag_ops[tag_ops_count].remove = argv[i][0] == '-';\r
+> \r
+> would be more clearer as:\r
+> \r
+> + tag_ops[tag_ops_count].remove = (argv[i][0] == '-');\r
+\r
+I usually don't add braces where they aren't needed, but can do here.\r
+\r
+> Everything else LGTM.\r
+\r
+Thanks for the review,\r
+Jani.\r
+\r
+\r
+> \r
+> Tomi\r
+> \r
+> \r
+> > notmuch-tag.c | 101 ++++++++++++++++++++++++++++++++-------------------------\r
+> > 1 files changed, 57 insertions(+), 44 deletions(-)\r
+> >\r
+> > diff --git a/notmuch-tag.c b/notmuch-tag.c\r
+> > index c39b235..edbfdec 100644\r
+> > --- a/notmuch-tag.c\r
+> > +++ b/notmuch-tag.c\r
+> > @@ -106,6 +106,60 @@ _optimize_tag_query (void *ctx, const char *orig_query_string,\r
+> > return query_string;\r
+> > }\r
+> > \r
+> > +static int\r
+> > +tag_query (void *ctx, notmuch_database_t *notmuch, const char *query_string,\r
+> > + tag_operation_t *tag_ops, notmuch_bool_t synchronize_flags)\r
+> > +{\r
+> > + notmuch_query_t *query;\r
+> > + notmuch_messages_t *messages;\r
+> > + notmuch_message_t *message;\r
+> > + int i;\r
+> > +\r
+> > + /* Optimize the query so it excludes messages that already have\r
+> > + * the specified set of tags. */\r
+> > + query_string = _optimize_tag_query (ctx, query_string, tag_ops);\r
+> > + if (query_string == NULL) {\r
+> > + fprintf (stderr, "Out of memory.\n");\r
+> > + return 1;\r
+> > + }\r
+> > +\r
+> > + query = notmuch_query_create (notmuch, query_string);\r
+> > + if (query == NULL) {\r
+> > + fprintf (stderr, "Out of memory.\n");\r
+> > + return 1;\r
+> > + }\r
+> > +\r
+> > + /* tagging is not interested in any special sort order */\r
+> > + notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);\r
+> > +\r
+> > + for (messages = notmuch_query_search_messages (query);\r
+> > + notmuch_messages_valid (messages) && !interrupted;\r
+> > + notmuch_messages_move_to_next (messages))\r
+> > + {\r
+> > + message = notmuch_messages_get (messages);\r
+> > +\r
+> > + notmuch_message_freeze (message);\r
+> > +\r
+> > + for (i = 0; tag_ops[i].tag; i++) {\r
+> > + if (tag_ops[i].remove)\r
+> > + notmuch_message_remove_tag (message, tag_ops[i].tag);\r
+> > + else\r
+> > + notmuch_message_add_tag (message, tag_ops[i].tag);\r
+> > + }\r
+> > +\r
+> > + notmuch_message_thaw (message);\r
+> > +\r
+> > + if (synchronize_flags)\r
+> > + notmuch_message_tags_to_maildir_flags (message);\r
+> > +\r
+> > + notmuch_message_destroy (message);\r
+> > + }\r
+> > +\r
+> > + notmuch_query_destroy (query);\r
+> > +\r
+> > + return interrupted;\r
+> > +}\r
+> > +\r
+> > int\r
+> > notmuch_tag_command (void *ctx, int argc, char *argv[])\r
+> > {\r
+> > @@ -114,12 +168,10 @@ notmuch_tag_command (void *ctx, int argc, char *argv[])\r
+> > char *query_string;\r
+> > notmuch_config_t *config;\r
+> > notmuch_database_t *notmuch;\r
+> > - notmuch_query_t *query;\r
+> > - notmuch_messages_t *messages;\r
+> > - notmuch_message_t *message;\r
+> > struct sigaction action;\r
+> > notmuch_bool_t synchronize_flags;\r
+> > int i;\r
+> > + int ret;\r
+> > \r
+> > /* Setup our handler for SIGINT */\r
+> > memset (&action, 0, sizeof (struct sigaction));\r
+> > @@ -166,14 +218,6 @@ notmuch_tag_command (void *ctx, int argc, char *argv[])\r
+> > return 1;\r
+> > }\r
+> > \r
+> > - /* Optimize the query so it excludes messages that already have\r
+> > - * the specified set of tags. */\r
+> > - query_string = _optimize_tag_query (ctx, query_string, tag_ops);\r
+> > - if (query_string == NULL) {\r
+> > - fprintf (stderr, "Out of memory.\n");\r
+> > - return 1;\r
+> > - }\r
+> > -\r
+> > config = notmuch_config_open (ctx, NULL, NULL);\r
+> > if (config == NULL)\r
+> > return 1;\r
+> > @@ -185,40 +229,9 @@ notmuch_tag_command (void *ctx, int argc, char *argv[])\r
+> > \r
+> > synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);\r
+> > \r
+> > - query = notmuch_query_create (notmuch, query_string);\r
+> > - if (query == NULL) {\r
+> > - fprintf (stderr, "Out of memory.\n");\r
+> > - return 1;\r
+> > - }\r
+> > -\r
+> > - /* tagging is not interested in any special sort order */\r
+> > - notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);\r
+> > + ret = tag_query (ctx, notmuch, query_string, tag_ops, synchronize_flags);\r
+> > \r
+> > - for (messages = notmuch_query_search_messages (query);\r
+> > - notmuch_messages_valid (messages) && !interrupted;\r
+> > - notmuch_messages_move_to_next (messages))\r
+> > - {\r
+> > - message = notmuch_messages_get (messages);\r
+> > -\r
+> > - notmuch_message_freeze (message);\r
+> > -\r
+> > - for (i = 0; tag_ops[i].tag; i++) {\r
+> > - if (tag_ops[i].remove)\r
+> > - notmuch_message_remove_tag (message, tag_ops[i].tag);\r
+> > - else\r
+> > - notmuch_message_add_tag (message, tag_ops[i].tag);\r
+> > - }\r
+> > -\r
+> > - notmuch_message_thaw (message);\r
+> > -\r
+> > - if (synchronize_flags)\r
+> > - notmuch_message_tags_to_maildir_flags (message);\r
+> > -\r
+> > - notmuch_message_destroy (message);\r
+> > - }\r
+> > -\r
+> > - notmuch_query_destroy (query);\r
+> > notmuch_database_close (notmuch);\r
+> > \r
+> > - return interrupted;\r
+> > + return ret;\r
+> > }\r
+> > -- \r
+> > 1.7.5.4\r
+> >\r
+> > _______________________________________________\r
+> > notmuch mailing list\r
+> > notmuch@notmuchmail.org\r
+> > http://notmuchmail.org/mailman/listinfo/notmuch\r