scm: add convenience methods root-maildir, personal-addresses

For a store, so to avoid assoc-ref.

scm/mu-scm-test.scm

@@ -13,6 +13,9 @@
   (test-assert (personal? "user@example.com"))
   (test-assert (not (personal? "user@anotherexample.com")))
 
+  (test-equal (root-maildir) (string-append (getenv "MU_TESTDATADIR") "/testdir"))
+  (test-equal (personal-addresses) '("user@example.com"))
+
   (let ((info (store->alist)))
     (test-equal 50000 (assoc-ref info 'batch-size))
     (test-equal 100000000 (assoc-ref info 'max-message-size)))

scm/mu-scm.scm

@@ -93,8 +93,9 @@
 	    cfind
 	    labels
 	    personal?
+	    root-maildir
+	    personal-addresses
 	    store->alist
-
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 	    ;; Other
 
@@ -563,8 +564,24 @@ The pattern is mandatory; the other (keyword) arguments are optional.
     #:max-results max. number of matches. Default: false (unlimited))."
   (cc-store-cfind (cc-store store) pattern personal? after max-results))
 
+(define-method (root-maildir (store <store>))
+  ;; "Get the root-maildir for the messages in STORE."
+  (assoc-ref (store->alist store) 'root-maildir))
+
+(define-method (root-maildir)
+  "Get the root-maildir for the messages in the default-store."
+  (root-maildir %default-store))
+
+(define-method (personal-addresses (store <store>))
+  ;; "Get the list of personal addresses in STORE."
+  (or (assoc-ref (store->alist store) 'personal-addresses) '()))
+
+(define-method (personal-addresses)
+  "Get the list of personal addresses in the default-store."
+  (personal-addresses %default-store))
+
 (define-method (mcount (store <store>))
- ;; "Get the number of messages in STORE."
+  ;; "Get the number of messages in STORE."
   (cc-store-mcount (cc-store store)))
 
 (define-method (mcount)

scm/mu-scm.texi

@@ -393,7 +393,8 @@ implicit.
 
 The store currently only exposes a few methods, described below.
 
-@deffn {Scheme Procedure} mfind query [#:related? #f] [#:skip-dups? #f] [#:sort-field 'date]
+@deffn {Scheme Procedure} mfind query [#:related? #f] [#:skip-dups? #f]
+       [#:sort-field 'date]
        [#:reverse? #f] [#:max-results #f]
 @end deffn
 
@@ -491,8 +492,9 @@ This is equivalent to @code{(assoc-ref (store->alist) 'root-maildir)}.
 Get the list of personal-addresses as defined in the @code{mu} database, which
 may be empty.
 
-This is equivalent to @code{(assoc-ref (store->alist) 'personal-addresses)}. Any
-element in this list is either a plain e-mail address, or a PCRE-compatible
+This is equivalent to @code{(or (assoc-ref (store->alist) 'personal-addresses) '())},
+
+Any element in this list is either a plain e-mail address, or a PCRE-compatible
 regular expression when the first and last characters are @t{/} (forward-slash);
 see @t{pcre(3)} for further details.