[PATCH v4 1/6] cli: search: Refactor passing of command line options
Michal Sojka
sojkam1 at fel.cvut.cz
Mon Oct 27 07:50:50 PDT 2014
Many functions that implement the search command need to access command
line options. Instead of passing each option in a separate variable, put
them in a structure and pass only this structure.
This will become handy in the following patches.
---
notmuch-search.c | 125 ++++++++++++++++++++++++++++---------------------------
1 file changed, 64 insertions(+), 61 deletions(-)
diff --git a/notmuch-search.c b/notmuch-search.c
index bc9be45..0c3e972 100644
--- a/notmuch-search.c
+++ b/notmuch-search.c
@@ -30,6 +30,16 @@ typedef enum {
OUTPUT_TAGS
} output_t;
+typedef struct {
+ sprinter_t *format;
+ notmuch_query_t *query;
+ notmuch_sort_t sort;
+ output_t output;
+ int offset;
+ int limit;
+ int dupe;
+} search_options_t;
+
/* Return two stable query strings that identify exactly the matched
* and unmatched messages currently in thread. If there are no
* matched or unmatched messages, the returned buffers will be
@@ -70,43 +80,39 @@ get_thread_query (notmuch_thread_t *thread,
}
static int
-do_search_threads (sprinter_t *format,
- notmuch_query_t *query,
- notmuch_sort_t sort,
- output_t output,
- int offset,
- int limit)
+do_search_threads (search_options_t *opt)
{
notmuch_thread_t *thread;
notmuch_threads_t *threads;
notmuch_tags_t *tags;
+ sprinter_t *format = opt->format;
time_t date;
int i;
- if (offset < 0) {
- offset += notmuch_query_count_threads (query);
- if (offset < 0)
- offset = 0;
+ if (opt->offset < 0) {
+ opt->offset += notmuch_query_count_threads (opt->query);
+ if (opt->offset < 0)
+ opt->offset = 0;
}
- threads = notmuch_query_search_threads (query);
+ threads = notmuch_query_search_threads (opt->query);
if (threads == NULL)
return 1;
format->begin_list (format);
for (i = 0;
- notmuch_threads_valid (threads) && (limit < 0 || i < offset + limit);
+ notmuch_threads_valid (threads) && (opt->limit < 0 || i < opt->offset + opt->limit);
notmuch_threads_move_to_next (threads), i++)
{
thread = notmuch_threads_get (threads);
- if (i < offset) {
+ if (i < opt->offset) {
notmuch_thread_destroy (thread);
continue;
}
- if (output == OUTPUT_THREADS) {
+ if (opt->output == OUTPUT_THREADS) {
format->set_prefix (format, "thread");
format->string (format,
notmuch_thread_get_thread_id (thread));
@@ -123,7 +129,7 @@ do_search_threads (sprinter_t *format,
format->begin_map (format);
- if (sort == NOTMUCH_SORT_OLDEST_FIRST)
+ if (opt->sort == NOTMUCH_SORT_OLDEST_FIRST)
date = notmuch_thread_get_oldest_date (thread);
else
date = notmuch_thread_get_newest_date (thread);
@@ -215,40 +221,36 @@ do_search_threads (sprinter_t *format,
}
static int
-do_search_messages (sprinter_t *format,
- notmuch_query_t *query,
- output_t output,
- int offset,
- int limit,
- int dupe)
+do_search_messages (search_options_t *opt)
{
notmuch_message_t *message;
notmuch_messages_t *messages;
notmuch_filenames_t *filenames;
+ sprinter_t *format = opt->format;
int i;
- if (offset < 0) {
- offset += notmuch_query_count_messages (query);
- if (offset < 0)
- offset = 0;
+ if (opt->offset < 0) {
+ opt->offset += notmuch_query_count_messages (opt->query);
+ if (opt->offset < 0)
+ opt->offset = 0;
}
- messages = notmuch_query_search_messages (query);
+ messages = notmuch_query_search_messages (opt->query);
if (messages == NULL)
return 1;
format->begin_list (format);
for (i = 0;
- notmuch_messages_valid (messages) && (limit < 0 || i < offset + limit);
+ notmuch_messages_valid (messages) && (opt->limit < 0 || i < opt->offset + opt->limit);
notmuch_messages_move_to_next (messages), i++)
{
- if (i < offset)
+ if (i < opt->offset)
continue;
message = notmuch_messages_get (messages);
- if (output == OUTPUT_FILES) {
+ if (opt->output == OUTPUT_FILES) {
int j;
filenames = notmuch_message_get_filenames (message);
@@ -256,7 +258,7 @@ do_search_messages (sprinter_t *format,
notmuch_filenames_valid (filenames);
notmuch_filenames_move_to_next (filenames), j++)
{
- if (dupe < 0 || dupe == j) {
+ if (opt->dupe < 0 || opt->dupe == j) {
format->string (format, notmuch_filenames_get (filenames));
format->separator (format);
}
@@ -283,12 +285,13 @@ do_search_messages (sprinter_t *format,
static int
do_search_tags (notmuch_database_t *notmuch,
- sprinter_t *format,
- notmuch_query_t *query)
+ const search_options_t *opt)
{
notmuch_messages_t *messages = NULL;
notmuch_tags_t *tags;
const char *tag;
+ sprinter_t *format = opt->format;
+ notmuch_query_t *query = opt->query;
/* should the following only special case if no excluded terms
* specified? */
@@ -333,16 +336,16 @@ int
notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
{
notmuch_database_t *notmuch;
- notmuch_query_t *query;
+ search_options_t opt = {
+ .sort = NOTMUCH_SORT_NEWEST_FIRST,
+ .output = OUTPUT_SUMMARY,
+ .offset = 0,
+ .limit = -1, /* unlimited */
+ .dupe = -1,
+ };
char *query_str;
- notmuch_sort_t sort = NOTMUCH_SORT_NEWEST_FIRST;
- sprinter_t *format = NULL;
int opt_index, ret;
- output_t output = OUTPUT_SUMMARY;
- int offset = 0;
- int limit = -1; /* unlimited */
notmuch_exclude_t exclude = NOTMUCH_EXCLUDE_TRUE;
- int dupe = -1;
unsigned int i;
enum {
@@ -353,7 +356,7 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
} format_sel = NOTMUCH_FORMAT_TEXT;
notmuch_opt_desc_t options[] = {
- { NOTMUCH_OPT_KEYWORD, &sort, "sort", 's',
+ { NOTMUCH_OPT_KEYWORD, &opt.sort, "sort", 's',
(notmuch_keyword_t []){ { "oldest-first", NOTMUCH_SORT_OLDEST_FIRST },
{ "newest-first", NOTMUCH_SORT_NEWEST_FIRST },
{ 0, 0 } } },
@@ -364,7 +367,7 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
{ "text0", NOTMUCH_FORMAT_TEXT0 },
{ 0, 0 } } },
{ NOTMUCH_OPT_INT, ¬much_format_version, "format-version", 0, 0 },
- { NOTMUCH_OPT_KEYWORD, &output, "output", 'o',
+ { NOTMUCH_OPT_KEYWORD, &opt.output, "output", 'o',
(notmuch_keyword_t []){ { "summary", OUTPUT_SUMMARY },
{ "threads", OUTPUT_THREADS },
{ "messages", OUTPUT_MESSAGES },
@@ -377,9 +380,9 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
{ "flag", NOTMUCH_EXCLUDE_FLAG },
{ "all", NOTMUCH_EXCLUDE_ALL },
{ 0, 0 } } },
- { NOTMUCH_OPT_INT, &offset, "offset", 'O', 0 },
- { NOTMUCH_OPT_INT, &limit, "limit", 'L', 0 },
- { NOTMUCH_OPT_INT, &dupe, "duplicate", 'D', 0 },
+ { NOTMUCH_OPT_INT, &opt.offset, "offset", 'O', 0 },
+ { NOTMUCH_OPT_INT, &opt.limit, "limit", 'L', 0 },
+ { NOTMUCH_OPT_INT, &opt.dupe, "duplicate", 'D', 0 },
{ 0, 0, 0, 0, 0 }
};
@@ -389,20 +392,20 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
switch (format_sel) {
case NOTMUCH_FORMAT_TEXT:
- format = sprinter_text_create (config, stdout);
+ opt.format = sprinter_text_create (config, stdout);
break;
case NOTMUCH_FORMAT_TEXT0:
- if (output == OUTPUT_SUMMARY) {
+ if (opt.output == OUTPUT_SUMMARY) {
fprintf (stderr, "Error: --format=text0 is not compatible with --output=summary.\n");
return EXIT_FAILURE;
}
- format = sprinter_text0_create (config, stdout);
+ opt.format = sprinter_text0_create (config, stdout);
break;
case NOTMUCH_FORMAT_JSON:
- format = sprinter_json_create (config, stdout);
+ opt.format = sprinter_json_create (config, stdout);
break;
case NOTMUCH_FORMAT_SEXP:
- format = sprinter_sexp_create (config, stdout);
+ opt.format = sprinter_sexp_create (config, stdout);
break;
default:
/* this should never happen */
@@ -425,15 +428,15 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
return EXIT_FAILURE;
}
- query = notmuch_query_create (notmuch, query_str);
- if (query == NULL) {
+ opt.query = notmuch_query_create (notmuch, query_str);
+ if (opt.query == NULL) {
fprintf (stderr, "Out of memory\n");
return EXIT_FAILURE;
}
- notmuch_query_set_sort (query, sort);
+ notmuch_query_set_sort (opt.query, opt.sort);
- if (exclude == NOTMUCH_EXCLUDE_FLAG && output != OUTPUT_SUMMARY) {
+ if (exclude == NOTMUCH_EXCLUDE_FLAG && opt.output != OUTPUT_SUMMARY) {
/* If we are not doing summary output there is nowhere to
* print the excluded flag so fall back on including the
* excluded messages. */
@@ -448,29 +451,29 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
search_exclude_tags = notmuch_config_get_search_exclude_tags
(config, &search_exclude_tags_length);
for (i = 0; i < search_exclude_tags_length; i++)
- notmuch_query_add_tag_exclude (query, search_exclude_tags[i]);
- notmuch_query_set_omit_excluded (query, exclude);
+ notmuch_query_add_tag_exclude (opt.query, search_exclude_tags[i]);
+ notmuch_query_set_omit_excluded (opt.query, exclude);
}
- switch (output) {
+ switch (opt.output) {
default:
case OUTPUT_SUMMARY:
case OUTPUT_THREADS:
- ret = do_search_threads (format, query, sort, output, offset, limit);
+ ret = do_search_threads (&opt);
break;
case OUTPUT_MESSAGES:
case OUTPUT_FILES:
- ret = do_search_messages (format, query, output, offset, limit, dupe);
+ ret = do_search_messages (&opt);
break;
case OUTPUT_TAGS:
- ret = do_search_tags (notmuch, format, query);
+ ret = do_search_tags (notmuch, &opt);
break;
}
- notmuch_query_destroy (query);
+ notmuch_query_destroy (opt.query);
notmuch_database_destroy (notmuch);
- talloc_free (format);
+ talloc_free (opt.format);
return ret ? EXIT_FAILURE : EXIT_SUCCESS;
}
--
2.1.1
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