From 8e3ff8fb03dc647f1daea4665c35a2214473ced8 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Tue, 27 Mar 2012 00:04:09 +0300 Subject: [PATCH] cli: refactor "notmuch tag" data structures for tagging operations To simplify code, keep all tagging operations in a single array instead of separate add and remove arrays. Apply tag changes in the order specified on the command line, instead of first removing and then adding the tags. This results in a minor functional change: If a tag is both added and removed, the last specified operation is now used. Previously the tag was always added. Change the relevant test to reflect the new behaviour. Signed-off-by: Jani Nikula --- notmuch-tag.c | 89 ++++++++++++++++++++++++--------------------------- test/tagging | 2 +- 2 files changed, 43 insertions(+), 48 deletions(-) diff --git a/notmuch-tag.c b/notmuch-tag.c index 36b9b092..0a6b140c 100644 --- a/notmuch-tag.c +++ b/notmuch-tag.c @@ -53,10 +53,14 @@ _escape_tag (char *buf, const char *tag) return buf; } +typedef struct { + const char *tag; + notmuch_bool_t remove; +} tag_operation_t; + 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) +_optimize_tag_query (void *ctx, const char *orig_query_string, + const tag_operation_t *tag_ops) { /* This is subtler than it looks. Xapian ignores the '-' operator * at the beginning both queries and parenthesized groups and, @@ -71,15 +75,16 @@ _optimize_tag_query (void *ctx, const char *orig_query_string, char *argv[], int i; unsigned int max_tag_len = 0; + /* Don't optimize if there are no tag changes. */ + if (tag_ops[0].tag == NULL) + return talloc_strdup (ctx, orig_query_string); + /* 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); + for (i = 0; tag_ops[i].tag; i++) + if (strlen (tag_ops[i].tag) > max_tag_len) + max_tag_len = strlen (tag_ops[i].tag); escaped = talloc_array(ctx, char, max_tag_len * 2 + 3); if (!escaped) return NULL; @@ -90,16 +95,11 @@ _optimize_tag_query (void *ctx, const char *orig_query_string, char *argv[], else query_string = talloc_asprintf (ctx, "( %s ) and (", orig_query_string); - for (i = 0; i < add_tags_count && query_string; i++) { + for (i = 0; tag_ops[i].tag && 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)); + query_string, "%s%stag:%s", join, + tag_ops[i].remove ? "" : "not ", + _escape_tag (escaped, tag_ops[i].tag)); join = " or "; } @@ -113,9 +113,8 @@ _optimize_tag_query (void *ctx, const char *orig_query_string, char *argv[], int notmuch_tag_command (void *ctx, int argc, char *argv[]) { - int *add_tags, *remove_tags; - int add_tags_count = 0; - int remove_tags_count = 0; + tag_operation_t *tag_ops; + int tag_ops_count = 0; char *query_string; notmuch_config_t *config; notmuch_database_t *notmuch; @@ -133,35 +132,33 @@ notmuch_tag_command (void *ctx, int argc, char *argv[]) action.sa_flags = SA_RESTART; sigaction (SIGINT, &action, NULL); - add_tags = talloc_size (ctx, argc * sizeof (int)); - if (add_tags == NULL) { - fprintf (stderr, "Out of memory.\n"); - return 1; - } - - remove_tags = talloc_size (ctx, argc * sizeof (int)); - if (remove_tags == NULL) { - fprintf (stderr, "Out of memory.\n"); - return 1; - } - 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); + 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] == '+') { - add_tags[add_tags_count++] = i; - } else if (argv[i][0] == '-') { - remove_tags[remove_tags_count++] = i; + if (argv[i][0] == '+' || argv[i][0] == '-') { + tag_ops[tag_ops_count].tag = argv[i] + 1; + tag_ops[tag_ops_count].remove = (argv[i][0] == '-'); + tag_ops_count++; } else { break; } } - if (add_tags_count == 0 && remove_tags_count == 0) { + 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; } @@ -175,9 +172,7 @@ notmuch_tag_command (void *ctx, int argc, char *argv[]) /* 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); + query_string = _optimize_tag_query (ctx, query_string, tag_ops); if (query_string == NULL) { fprintf (stderr, "Out of memory.\n"); return 1; @@ -211,12 +206,12 @@ notmuch_tag_command (void *ctx, int argc, char *argv[]) notmuch_message_freeze (message); - for (i = 0; i < remove_tags_count; i++) - notmuch_message_remove_tag (message, - argv[remove_tags[i]] + 1); - - for (i = 0; i < add_tags_count; i++) - notmuch_message_add_tag (message, argv[add_tags[i]] + 1); + 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); diff --git a/test/tagging b/test/tagging index 3acf1bc0..e4782ed4 100755 --- a/test/tagging +++ b/test/tagging @@ -43,7 +43,7 @@ notmuch tag +tag4 -tag4 One notmuch tag -tag4 +tag4 Two output=$(notmuch search \* | notmuch_search_sanitize) test_expect_equal "$output" "\ -thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; One (:\" inbox tag1 tag4 unread) +thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; One (:\" inbox tag1 unread) thread:XXX 2001-01-05 [1/1] Notmuch Test Suite; Two (inbox tag1 tag4 unread)" test_done