]> git.notmuchmail.org Git - notmuch/blobdiff - lib/open.cc
lib/open: support XDG_DATA_HOME as a fallback database location.
[notmuch] / lib / open.cc
index cc099e51123eb5b5a37e3f4322dfc2d012122e04..25691a8ac6df76de11ad024d701d474d393cdae9 100644 (file)
@@ -181,6 +181,7 @@ _choose_database_path (void *ctx,
                       const char *profile,
                       GKeyFile **key_file,
                       const char **database_path,
+                      bool *split,
                       char **message)
 {
     notmuch_status_t status;
@@ -203,6 +204,11 @@ _choose_database_path (void *ctx,
        }
     }
 
+    if (! *database_path) {
+       *database_path = _xdg_dir (ctx, "XDG_DATA_HOME", ".local/share", profile);
+       *split = true;
+    }
+
     if (*database_path == NULL) {
        *message = strdup ("Error: Cannot open a database for a NULL path.\n");
        return NOTMUCH_STATUS_NULL_POINTER;
@@ -232,6 +238,56 @@ _alloc_notmuch ()
     return notmuch;
 }
 
+static notmuch_status_t
+_trial_open (const char *xapian_path, char **message_ptr)
+{
+    try {
+       Xapian::Database db (xapian_path);
+    } catch (const Xapian::DatabaseOpeningError &error) {
+       IGNORE_RESULT (asprintf (message_ptr,
+                                "Cannot open Xapian database at %s: %s\n",
+                                xapian_path,
+                                error.get_msg ().c_str ()));
+       return NOTMUCH_STATUS_PATH_ERROR;
+    } catch (const Xapian::Error &error) {
+       IGNORE_RESULT (asprintf (message_ptr,
+                                "A Xapian exception occurred opening database: %s\n",
+                                error.get_msg ().c_str ()));
+       return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+    }
+    return NOTMUCH_STATUS_SUCCESS;
+}
+
+static notmuch_status_t
+_choose_xapian_path (void *ctx, const char *database_path, const char **xapian_path,
+                    char **message_ptr)
+{
+    notmuch_status_t status;
+    const char *trial_path, *notmuch_path;
+
+    status = _db_dir_exists (database_path, message_ptr);
+    if (status)
+       goto DONE;
+
+    trial_path = talloc_asprintf (ctx, "%s/xapian", database_path);
+    status = _trial_open (trial_path, message_ptr);
+    if (status != NOTMUCH_STATUS_PATH_ERROR)
+       goto DONE;
+
+    notmuch_path = talloc_asprintf (ctx, "%s/.notmuch", database_path);
+    status = _db_dir_exists (notmuch_path, message_ptr);
+    if (status)
+       goto DONE;
+
+    trial_path = talloc_asprintf (ctx, "%s/xapian", notmuch_path);
+    status = _trial_open (trial_path, message_ptr);
+
+  DONE:
+    if (status == NOTMUCH_STATUS_SUCCESS)
+       *xapian_path = trial_path;
+    return status;
+}
+
 static void
 _set_database_path (notmuch_database_t *notmuch,
                    const char *database_path)
@@ -410,9 +466,9 @@ notmuch_database_open_with_config (const char *database_path,
     notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
     void *local = talloc_new (NULL);
     notmuch_database_t *notmuch = NULL;
-    char *notmuch_path;
     char *message = NULL;
     GKeyFile *key_file = NULL;
+    bool split = false;
 
     _init_libs ();
 
@@ -422,32 +478,21 @@ notmuch_database_open_with_config (const char *database_path,
        goto DONE;
     }
 
-    if ((status = _choose_database_path (local, config_path, profile, &key_file, &database_path,
+    if ((status = _choose_database_path (local, config_path, profile,
+                                        &key_file, &database_path, &split,
                                         &message)))
        goto DONE;
 
-    _set_database_path (notmuch, database_path);
-
     status = _db_dir_exists (database_path, &message);
     if (status)
        goto DONE;
 
-    if (! (notmuch_path = talloc_asprintf (local, "%s/%s", database_path, ".notmuch"))) {
-       message = strdup ("Out of memory\n");
-       status = NOTMUCH_STATUS_OUT_OF_MEMORY;
-       goto DONE;
-    }
+    _set_database_path (notmuch, database_path);
 
-    status = _db_dir_exists (notmuch_path, &message);
+    status = _choose_xapian_path (notmuch, database_path, &notmuch->xapian_path, &message);
     if (status)
        goto DONE;
 
-    if (! (notmuch->xapian_path = talloc_asprintf (notmuch, "%s/%s", notmuch_path, "xapian"))) {
-       message = strdup ("Out of memory\n");
-       status = NOTMUCH_STATUS_OUT_OF_MEMORY;
-       goto DONE;
-    }
-
     status = _finish_open (notmuch, profile, mode, key_file, &message);
 
   DONE:
@@ -508,11 +553,12 @@ notmuch_database_create_with_config (const char *database_path,
 {
     notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
     notmuch_database_t *notmuch = NULL;
-    char *notmuch_path = NULL;
+    const char *notmuch_path = NULL;
     char *message = NULL;
     GKeyFile *key_file = NULL;
     void *local = talloc_new (NULL);
     int err;
+    bool split = false;
 
     _init_libs ();
 
@@ -525,7 +571,8 @@ notmuch_database_create_with_config (const char *database_path,
     _init_libs ();
 
     if ((status = _choose_database_path (local, config_path, profile,
-                                        &key_file, &database_path, &message)))
+                                        &key_file, &database_path, &split,
+                                        &message)))
        goto DONE;
 
     status = _db_dir_exists (database_path, &message);
@@ -534,28 +581,58 @@ notmuch_database_create_with_config (const char *database_path,
 
     _set_database_path (notmuch, database_path);
 
-    notmuch_path = talloc_asprintf (local, "%s/%s", database_path, ".notmuch");
+    if (key_file && ! split) {
+       char *mail_root = canonicalize_file_name (
+           g_key_file_get_value (key_file, "database", "mail_root", NULL));
+       char *db_path = canonicalize_file_name (database_path);
 
-    err = mkdir (notmuch_path, 0755);
-    if (err) {
-       if (errno == EEXIST) {
-           status = NOTMUCH_STATUS_DATABASE_EXISTS;
-           talloc_free (notmuch);
-           notmuch = NULL;
-       } else {
-           IGNORE_RESULT (asprintf (&message, "Error: Cannot create directory %s: %s.\n",
-                                    notmuch_path, strerror (errno)));
-           status = NOTMUCH_STATUS_FILE_ERROR;
+       split = (mail_root && (0 != strcmp (mail_root, db_path)));
+
+       free (mail_root);
+       free (db_path);
+    }
+
+    if (split) {
+       notmuch_path = database_path;
+    } else {
+       if (! (notmuch_path = talloc_asprintf (local, "%s/%s", database_path, ".notmuch"))) {
+           status = NOTMUCH_STATUS_OUT_OF_MEMORY;
+           goto DONE;
+       }
+
+       err = mkdir (notmuch_path, 0755);
+       if (err) {
+           if (errno == EEXIST) {
+               status = NOTMUCH_STATUS_DATABASE_EXISTS;
+               talloc_free (notmuch);
+               notmuch = NULL;
+           } else {
+               IGNORE_RESULT (asprintf (&message, "Error: Cannot create directory %s: %s.\n",
+                                        notmuch_path, strerror (errno)));
+               status = NOTMUCH_STATUS_FILE_ERROR;
+           }
+           goto DONE;
        }
+    }
+
+    if (! (notmuch->xapian_path = talloc_asprintf (notmuch, "%s/%s", notmuch_path, "xapian"))) {
+       status = NOTMUCH_STATUS_OUT_OF_MEMORY;
+       goto DONE;
+    }
+
+    status = _trial_open (notmuch->xapian_path, &message);
+    if (status == NOTMUCH_STATUS_SUCCESS) {
+       notmuch_database_destroy (notmuch);
+       notmuch = NULL;
+       status = NOTMUCH_STATUS_DATABASE_EXISTS;
        goto DONE;
     }
 
-    /* XXX this reads the config file twice, which is a bit wasteful */
-    status = notmuch_database_open_with_config (database_path,
-                                               NOTMUCH_DATABASE_MODE_READ_WRITE,
-                                               config_path,
-                                               profile,
-                                               &notmuch, &message);
+    status = _finish_open (notmuch,
+                          profile,
+                          NOTMUCH_DATABASE_MODE_READ_WRITE,
+                          key_file,
+                          &message);
     if (status)
        goto DONE;