[PATCH 3/3] added support for user-specified directories to exclude

[tomi.ollila@iki.fi]

From: Tomi Ollila <tomi.ollila@iki.fi>

A new configuration key 'database.exclude' is used to determine
which directories user wants not to be scanned for new mails.
---
 notmuch-client.h |    3 +++
 notmuch-config.c |   19 +++++++++++++++++++
 notmuch-new.c    |   22 ++++++++++++++++++++--
 3 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/notmuch-client.h b/notmuch-client.h
index b50cb38..503ac79 100644
--- a/notmuch-client.h
+++ b/notmuch-client.h
@@ -197,6 +197,9 @@ void
 notmuch_config_set_database_path (notmuch_config_t *config,
 				  const char *database_path);
 
+const char **
+notmuch_config_get_database_exclude (notmuch_config_t *config,
+				     size_t *length);
 const char *
 notmuch_config_get_user_name (notmuch_config_t *config);
 
diff --git a/notmuch-config.c b/notmuch-config.c
index 648639b..b628074 100644
--- a/notmuch-config.c
+++ b/notmuch-config.c
@@ -88,6 +88,8 @@ struct _notmuch_config {
     GKeyFile *key_file;
 
     char *database_path;
+    const char **database_exclude;
+    size_t database_exclude_length;
     char *user_name;
     char *user_primary_email;
     const char **user_other_email;
@@ -282,6 +284,8 @@ notmuch_config_open (void *ctx,
     config->key_file = g_key_file_new ();
 
     config->database_path = NULL;
+    config->database_exclude = NULL;
+    config->database_exclude_length = 0;
     config->user_name = NULL;
     config->user_primary_email = NULL;
     config->user_other_email = NULL;
@@ -502,6 +506,21 @@ notmuch_config_set_database_path (notmuch_config_t *config,
     config->database_path = NULL;
 }
 
+const char **
+notmuch_config_get_database_exclude (notmuch_config_t *config,
+				     size_t *length)
+{
+    if (config->database_exclude == NULL) {
+	config->database_exclude = notmuch_talloc_g_key_file_get_string_list(
+	    config,
+	    config->key_file,
+	    "database", "exclude",
+	    &config->database_exclude_length, NULL);
+    }
+    *length = config->database_exclude_length;
+    return config->database_exclude;
+}
+
 const char *
 notmuch_config_get_user_name (notmuch_config_t *config)
 {
diff --git a/notmuch-new.c b/notmuch-new.c
index 7d17793..36da15f 100644
--- a/notmuch-new.c
+++ b/notmuch-new.c
@@ -38,6 +38,8 @@ typedef struct {
     int verbose;
     const char **new_tags;
     size_t new_tags_length;
+    const char **database_exclude;
+    size_t database_exclude_length;
 
     int total_files;
     int processed_files;
@@ -293,6 +295,8 @@ add_files_recursive (notmuch_database_t *notmuch,
     is_maildir = _entries_resemble_maildir (fs_entries, num_fs_entries);
 
     for (i = 0; i < num_fs_entries; i++) {
+	size_t j;
+
 	if (interrupted)
 	    break;
 
@@ -316,8 +320,6 @@ add_files_recursive (notmuch_database_t *notmuch,
 	 * Also ignore the .notmuch directory and any "tmp" directory
 	 * that appears within a maildir.
 	 */
-	/* XXX: Eventually we'll want more sophistication to let the
-	 * user specify files to be ignored. */
 	if (strcmp (entry->d_name, ".") == 0 ||
 	    strcmp (entry->d_name, "..") == 0 ||
 	    (is_maildir && strcmp (entry->d_name, "tmp") == 0) ||
@@ -325,6 +327,12 @@ add_files_recursive (notmuch_database_t *notmuch,
 	{
 	    continue;
 	}
+	/* Ignore user-specified directories */
+	for (j = 0; j < state->database_exclude_length; j++)
+	    if (strcmp(entry->d_name, state->database_exclude[j]) == 0)
+		break;
+	if (j < state->database_exclude_length)
+	    continue;
 
 	next = talloc_asprintf (notmuch, "%s/%s", path, entry->d_name);
 	status = add_files_recursive (notmuch, next, state);
@@ -357,11 +365,20 @@ add_files_recursive (notmuch_database_t *notmuch,
     /* Pass 2: Scan for new files, removed files, and removed directories. */
     for (i = 0; i < num_fs_entries; i++)
     {
+	size_t j;
+
 	if (interrupted)
 	    break;
 
         entry = fs_entries[i];
 
+	/* Ignore user-specified files & directories */
+	for (j = 0; j < state->database_exclude_length; j++)
+	    if (strcmp(entry->d_name, state->database_exclude[j]) == 0)
+		break;
+	if (j < state->database_exclude_length)
+	    continue;
+
 	/* Check if we've walked past any names in db_files or
 	 * db_subdirs. If so, these have been deleted. */
 	while (notmuch_filenames_valid (db_files) &&
@@ -800,6 +817,7 @@ notmuch_new_command (void *ctx, int argc, char *argv[])
 	return 1;
 
     add_files_state.new_tags = notmuch_config_get_new_tags (config, &add_files_state.new_tags_length);
+    add_files_state.database_exclude = notmuch_config_get_database_exclude (config, &add_files_state.database_exclude_length);
     add_files_state.synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);
     add_files_state.message_ids_to_sync = _filename_list_create (ctx);
     db_path = notmuch_config_get_database_path (config);
-- 
1.7.3.4