cli: search: Add --output={sender,recipients}

The new outputs allow printing senders, recipients or both of matching
messages. To print both, the user can use --output=sender and
--output=recipients simultaneously.

Currently, the same address can appear multiple times in the output.
The next commit will change this. For this reason, tests are
introduced there.

We use mailbox_t rather than InternetAddressMailbox because we will
need to extend it in a following commit.

This code is based on a patch from Jani Nikula.

diff --git a/completion/notmuch-completion.bash b/completion/notmuch-completion.bash
index 0571dc9da8e332b3fa3c24ab27e9fa61a3c637f4..cfbd3890e09179ae8a1966c24c21dd46a114b31f 100644 (file)
--- a/completion/notmuch-completion.bash
+++ b/completion/notmuch-completion.bash
@@ -294,7 +294,7 @@ _notmuch_search()
            return
            ;;
        --output)
-           COMPREPLY=( $( compgen -W "summary threads messages files tags" -- "${cur}" ) )
+           COMPREPLY=( $( compgen -W "summary threads messages files tags sender recipients" -- "${cur}" ) )
            return
            ;;
        --sort)

diff --git a/completion/notmuch-completion.zsh b/completion/notmuch-completion.zsh
index 67a9aba85f694f0fe652f1e92a27b5202c39de32..3e52a004d8ee9530b2082ad72cd329513f6657d2 100644 (file)
--- a/completion/notmuch-completion.zsh
+++ b/completion/notmuch-completion.zsh
@@ -52,7 +52,8 @@ _notmuch_search()
   _arguments -s : \
     '--max-threads=[display only the first x threads from the search results]:number of threads to show: ' \
     '--first=[omit the first x threads from the search results]:number of threads to omit: ' \
-    '--sort=[sort results]:sorting:((newest-first\:"reverse chronological order" oldest-first\:"chronological order"))'
+    '--sort=[sort results]:sorting:((newest-first\:"reverse chronological order" oldest-first\:"chronological order"))' \
+    '--output=[select what to output]:output:((summary threads messages files tags sender recipients))'
 }
 
 _notmuch()

diff --git a/doc/man1/notmuch-search.rst b/doc/man1/notmuch-search.rst
index 90160f21e23c12161876d019b07ca9a0c8dc7bfc..b6607c922cc083c35b9add629c771d6d3927da1b 100644 (file)
--- a/doc/man1/notmuch-search.rst
+++ b/doc/man1/notmuch-search.rst
@@ -35,7 +35,7 @@ Supported options for **search** include
         intended for programs that invoke **notmuch(1)** internally. If
         omitted, the latest supported version will be used.
 
-    ``--output=(summary|threads|messages|files|tags)``
+    ``--output=(summary|threads|messages|files|tags|sender|recipients)``
 
         **summary**
             Output a summary of each thread with any message matching
@@ -78,6 +78,26 @@ Supported options for **search** include
             by null characters (--format=text0), as a JSON array
             (--format=json), or as an S-Expression list (--format=sexp).
 
+       **sender**
+            Output all addresses from the *From* header that appear on
+            any message matching the search terms, either one per line
+            (--format=text), separated by null characters
+            (--format=text0), as a JSON array (--format=json), or as
+            an S-Expression list (--format=sexp).
+
+           Note: Searching for **sender** should be much faster than
+           searching for **recipients**, because sender addresses are
+           cached directly in the database whereas other addresses
+           need to be fetched from message files.
+
+       **recipients**
+            Like **sender** but for addresses from *To*, *Cc* and
+           *Bcc* headers.
+
+       This option can be given multiple times to combine different
+       outputs. Currently, this is only supported for **sender** and
+       **recipients** outputs.
+
     ``--sort=``\ (**newest-first**\ \|\ **oldest-first**)
         This option can be used to present results in either
         chronological order (**oldest-first**) or reverse chronological

diff --git a/notmuch-search.c b/notmuch-search.c
index ce46877895701e07d6e899daf187dd2c7eaeb37c..671fe4139981055e77e7f6c7c269a4bdb77ccb81 100644 (file)
--- a/notmuch-search.c
+++ b/notmuch-search.c
@@ -28,8 +28,12 @@ typedef enum {
     OUTPUT_MESSAGES    = 1 << 2,
     OUTPUT_FILES       = 1 << 3,
     OUTPUT_TAGS                = 1 << 4,
+    OUTPUT_SENDER      = 1 << 5,
+    OUTPUT_RECIPIENTS  = 1 << 6,
 } output_t;
 
+#define OUTPUT_ADDRESS_FLAGS (OUTPUT_SENDER | OUTPUT_RECIPIENTS)
+
 typedef struct {
     sprinter_t *format;
     notmuch_query_t *query;
@@ -40,6 +44,11 @@ typedef struct {
     int dupe;
 } search_options_t;
 
+typedef struct {
+    const char *name;
+    const char *addr;
+} mailbox_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
@@ -220,6 +229,87 @@ do_search_threads (search_options_t *opt)
     return 0;
 }
 
+static void
+print_mailbox (const search_options_t *opt, const mailbox_t *mailbox)
+{
+    const char *name = mailbox->name;
+    const char *addr = mailbox->addr;
+    sprinter_t *format = opt->format;
+    InternetAddress *ia = internet_address_mailbox_new (name, addr);
+    char *name_addr;
+
+    /* name_addr has the name part quoted if necessary. Compare
+     * 'John Doe <john@doe.com>' vs. '"Doe, John" <john@doe.com>' */
+    name_addr = internet_address_to_string (ia, FALSE);
+
+    if (format->is_text_printer) {
+       format->string (format, name_addr);
+       format->separator (format);
+    } else {
+       format->begin_map (format);
+       format->map_key (format, "name");
+       format->string (format, name);
+       format->map_key (format, "address");
+       format->string (format, addr);
+       format->map_key (format, "name-addr");
+       format->string (format, name_addr);
+       format->end (format);
+       format->separator (format);
+    }
+
+    g_object_unref (ia);
+    g_free (name_addr);
+}
+
+/* Print addresses from InternetAddressList.  */
+static void
+process_address_list (const search_options_t *opt, InternetAddressList *list)
+{
+    InternetAddress *address;
+    int i;
+
+    for (i = 0; i < internet_address_list_length (list); i++) {
+       address = internet_address_list_get_address (list, i);
+       if (INTERNET_ADDRESS_IS_GROUP (address)) {
+           InternetAddressGroup *group;
+           InternetAddressList *group_list;
+
+           group = INTERNET_ADDRESS_GROUP (address);
+           group_list = internet_address_group_get_members (group);
+           if (group_list == NULL)
+               continue;
+
+           process_address_list (opt, group_list);
+       } else {
+           InternetAddressMailbox *mailbox = INTERNET_ADDRESS_MAILBOX (address);
+           mailbox_t mbx = {
+               .name = internet_address_get_name (address),
+               .addr = internet_address_mailbox_get_addr (mailbox),
+           };
+
+           print_mailbox (opt, &mbx);
+       }
+    }
+}
+
+/* Print addresses from a message header.  */
+static void
+process_address_header (const search_options_t *opt, const char *value)
+{
+    InternetAddressList *list;
+
+    if (value == NULL)
+       return;
+
+    list = internet_address_list_parse_string (value);
+    if (list == NULL)
+       return;
+
+    process_address_list (opt, list);
+
+    g_object_unref (list);
+}
+
 static int
 do_search_messages (search_options_t *opt)
 {
@@ -266,11 +356,29 @@ do_search_messages (search_options_t *opt)
            
            notmuch_filenames_destroy( filenames );
 
-       } else { /* output == OUTPUT_MESSAGES */
+       } else if (opt->output == OUTPUT_MESSAGES) {
            format->set_prefix (format, "id");
            format->string (format,
                            notmuch_message_get_message_id (message));
            format->separator (format);
+       } else {
+           if (opt->output & OUTPUT_SENDER) {
+               const char *addrs;
+
+               addrs = notmuch_message_get_header (message, "from");
+               process_address_header (opt, addrs);
+           }
+
+           if (opt->output & OUTPUT_RECIPIENTS) {
+               const char *hdrs[] = { "to", "cc", "bcc" };
+               const char *addrs;
+               size_t j;
+
+               for (j = 0; j < ARRAY_SIZE (hdrs); j++) {
+                   addrs = notmuch_message_get_header (message, hdrs[j]);
+                   process_address_header (opt, addrs);
+               }
+           }
        }
 
        notmuch_message_destroy (message);
@@ -371,6 +479,8 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
          (notmuch_keyword_t []){ { "summary", OUTPUT_SUMMARY },
                                  { "threads", OUTPUT_THREADS },
                                  { "messages", OUTPUT_MESSAGES },
+                                 { "sender", OUTPUT_SENDER },
+                                 { "recipients", OUTPUT_RECIPIENTS },
                                  { "files", OUTPUT_FILES },
                                  { "tags", OUTPUT_TAGS },
                                  { 0, 0 } } },
@@ -462,7 +572,8 @@ notmuch_search_command (notmuch_config_t *config, int argc, char *argv[])
        opt.output == OUTPUT_THREADS)
        ret = do_search_threads (&opt);
     else if (opt.output == OUTPUT_MESSAGES ||
-            opt.output == OUTPUT_FILES)
+            opt.output == OUTPUT_FILES ||
+            (opt.output & OUTPUT_ADDRESS_FLAGS && !(opt.output & ~OUTPUT_ADDRESS_FLAGS)))
        ret = do_search_messages (&opt);
     else if (opt.output == OUTPUT_TAGS)
        ret = do_search_tags (notmuch, &opt);