X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch-show.c;h=ff9d4278b04e1261afa8a33c5c2d50cfb8aacd50;hp=6259d3023aa114b58eca9b26c2c81da42b0995d2;hb=918b80359727de2dd87f26a252de8faee2eff78c;hpb=63ee244c8e9fd1fdd63697f3584530499157652f

diff --git a/notmuch-show.c b/notmuch-show.c
index 6259d302..ff9d4278 100644
--- a/notmuch-show.c
+++ b/notmuch-show.c
@@ -20,10 +20,7 @@
 
 #include "notmuch-client.h"
 
-static void
-format_headers_message_part_text (GMimeMessage *message);
-
-static void
+static notmuch_status_t
 format_part_text (const void *ctx, mime_node_t *node,
 		  int indent, const notmuch_show_params_t *params);
 
@@ -34,7 +31,7 @@ static const notmuch_show_format_t format_text = {
     .message_set_end = ""
 };
 
-static void
+static notmuch_status_t
 format_part_json_entry (const void *ctx, mime_node_t *node,
 			int indent, const notmuch_show_params_t *params);
 
@@ -45,44 +42,27 @@ static const notmuch_show_format_t format_json = {
     .message_set_end = "]"
 };
 
-static void
-format_message_mbox (const void *ctx,
-		     notmuch_message_t *message,
-		     unused (int indent));
+static notmuch_status_t
+format_part_mbox (const void *ctx, mime_node_t *node,
+		  int indent, const notmuch_show_params_t *params);
 
 static const notmuch_show_format_t format_mbox = {
-    "", NULL,
-        "", format_message_mbox,
-            "", NULL, NULL, "",
-            "",
-                NULL,
-                NULL,
-                NULL,
-                NULL,
-                NULL,
-                "",
-            "",
-        "", "",
-    ""
+    .message_set_start = "",
+    .part = format_part_mbox,
+    .message_set_sep = "",
+    .message_set_end = ""
 };
 
-static void
-format_part_content_raw (GMimeObject *part);
+static notmuch_status_t
+format_part_raw (unused (const void *ctx), mime_node_t *node,
+		 unused (int indent),
+		 unused (const notmuch_show_params_t *params));
 
 static const notmuch_show_format_t format_raw = {
-    "", NULL,
-	"", NULL,
-	    "", NULL, format_headers_message_part_text, "\n",
-            "",
-                NULL,
-                NULL,
-                NULL,
-                format_part_content_raw,
-                NULL,
-                "",
-            "",
-	"", "",
-    ""
+    .message_set_start = "",
+    .part = format_part_raw,
+    .message_set_sep = "",
+    .message_set_end = ""
 };
 
 static const char *
@@ -143,9 +123,10 @@ format_message_json (const void *ctx, notmuch_message_t *message)
     date = notmuch_message_get_date (message);
     relative_date = notmuch_time_relative_date (ctx, date);
 
-    printf ("\"id\": %s, \"match\": %s, \"filename\": %s, \"timestamp\": %ld, \"date_relative\": \"%s\", \"tags\": [",
+    printf ("\"id\": %s, \"match\": %s, \"excluded\": %s, \"filename\": %s, \"timestamp\": %ld, \"date_relative\": \"%s\", \"tags\": [",
 	    json_quote_str (ctx_quote, notmuch_message_get_message_id (message)),
 	    notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH) ? "true" : "false",
+	    notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_EXCLUDED) ? "true" : "false",
 	    json_quote_str (ctx_quote, notmuch_message_get_filename (message)),
 	    date, relative_date);
 
@@ -219,85 +200,14 @@ _is_from_line (const char *line)
 	return 0;
 }
 
-/* Print a message in "mboxrd" format as documented, for example,
- * here:
- *
- * http://qmail.org/qmail-manual-html/man5/mbox.html
- */
-static void
-format_message_mbox (const void *ctx,
-		     notmuch_message_t *message,
-		     unused (int indent))
-{
-    const char *filename;
-    FILE *file;
-    const char *from;
-
-    time_t date;
-    struct tm date_gmtime;
-    char date_asctime[26];
-
-    char *line = NULL;
-    size_t line_size;
-    ssize_t line_len;
-
-    filename = notmuch_message_get_filename (message);
-    file = fopen (filename, "r");
-    if (file == NULL) {
-	fprintf (stderr, "Failed to open %s: %s\n",
-		 filename, strerror (errno));
-	return;
-    }
-
-    from = notmuch_message_get_header (message, "from");
-    from = _extract_email_address (ctx, from);
-
-    date = notmuch_message_get_date (message);
-    gmtime_r (&date, &date_gmtime);
-    asctime_r (&date_gmtime, date_asctime);
-
-    printf ("From %s %s", from, date_asctime);
-
-    while ((line_len = getline (&line, &line_size, file)) != -1 ) {
-	if (_is_from_line (line))
-	    putchar ('>');
-	printf ("%s", line);
-    }
-
-    printf ("\n");
-
-    fclose (file);
-}
-
-static void
-format_headers_message_part_text (GMimeMessage *message)
-{
-    InternetAddressList *recipients;
-    const char *recipients_string;
-
-    printf ("Subject: %s\n", g_mime_message_get_subject (message));
-    printf ("From: %s\n", g_mime_message_get_sender (message));
-    recipients = g_mime_message_get_recipients (message, GMIME_RECIPIENT_TYPE_TO);
-    recipients_string = internet_address_list_to_string (recipients, 0);
-    if (recipients_string)
-	printf ("To: %s\n",
-		recipients_string);
-    recipients = g_mime_message_get_recipients (message, GMIME_RECIPIENT_TYPE_CC);
-    recipients_string = internet_address_list_to_string (recipients, 0);
-    if (recipients_string)
-	printf ("Cc: %s\n",
-		recipients_string);
-    printf ("Date: %s\n", g_mime_message_get_date_as_string (message));
-}
-
-static void
-format_headers_json (const void *ctx, GMimeMessage *message)
+void
+format_headers_json (const void *ctx, GMimeMessage *message, notmuch_bool_t reply)
 {
     void *local = talloc_new (ctx);
     InternetAddressList *recipients;
     const char *recipients_string;
 
-    printf ("%s: %s",
+    printf ("{%s: %s",
 	    json_quote_str (local, "Subject"),
 	    json_quote_str (local, g_mime_message_get_subject (message)));
     printf (", %s: %s",
@@ -315,9 +225,22 @@ format_headers_json (const void *ctx, GMimeMessage *message)
 	printf (", %s: %s",
 		json_quote_str (local, "Cc"),
 		json_quote_str (local, recipients_string));
-    printf (", %s: %s",
-	    json_quote_str (local, "Date"),
-	    json_quote_str (local, g_mime_message_get_date_as_string (message)));
+
+    if (reply) {
+	printf (", %s: %s",
+		json_quote_str (local, "In-reply-to"),
+		json_quote_str (local, g_mime_object_get_header (GMIME_OBJECT (message), "In-reply-to")));
+
+	printf (", %s: %s",
+		json_quote_str (local, "References"),
+		json_quote_str (local, g_mime_object_get_header (GMIME_OBJECT (message), "References")));
+    } else {
+	printf (", %s: %s",
+		json_quote_str (local, "Date"),
+		json_quote_str (local, g_mime_message_get_date_as_string (message)));
+    }
+
+    printf ("}");
 
     talloc_free (local);
 }
@@ -404,9 +327,11 @@ signer_status_to_string (GMimeSignerStatus x)
 
 #ifdef GMIME_ATLEAST_26
 static void
-format_part_sigstatus_json (GMimeSignatureList *siglist)
+format_part_sigstatus_json (mime_node_t *node)
 {
-    printf (", \"sigstatus\": [");
+    GMimeSignatureList *siglist = node->sig_list;
+
+    printf ("[");
 
     if (!siglist) {
 	printf ("]");
@@ -470,9 +395,11 @@ format_part_sigstatus_json (GMimeSignatureList *siglist)
 }
 #else
 static void
-format_part_sigstatus_json (const GMimeSignatureValidity* validity)
+format_part_sigstatus_json (mime_node_t *node)
 {
-    printf (", \"sigstatus\": [");
+    const GMimeSignatureValidity* validity = node->sig_validity;
+
+    printf ("[");
 
     if (!validity) {
 	printf ("]");
@@ -531,34 +458,7 @@ format_part_sigstatus_json (const GMimeSignatureValidity* validity)
 }
 #endif
 
-static void
-format_part_content_raw (GMimeObject *part)
-{
-    if (! GMIME_IS_PART (part))
-	return;
-
-    GMimeStream *stream_stdout;
-    GMimeStream *stream_filter = NULL;
-    GMimeDataWrapper *wrapper;
-
-    stream_stdout = g_mime_stream_file_new (stdout);
-    g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
-
-    stream_filter = g_mime_stream_filter_new (stream_stdout);
-
-    wrapper = g_mime_part_get_content_object (GMIME_PART (part));
-
-    if (wrapper && stream_filter)
-	g_mime_data_wrapper_write_to_stream (wrapper, stream_filter);
-
-    if (stream_filter)
-	g_object_unref (stream_filter);
-
-    if (stream_stdout)
-	g_object_unref(stream_stdout);
-}
-
-static void
+static notmuch_status_t
 format_part_text (const void *ctx, mime_node_t *node,
 		  int indent, const notmuch_show_params_t *params)
 {
@@ -575,11 +475,12 @@ format_part_text (const void *ctx, mime_node_t *node,
 	notmuch_message_t *message = node->envelope_file;
 
 	part_type = "message";
-	printf ("\f%s{ id:%s depth:%d match:%d filename:%s\n",
+	printf ("\f%s{ id:%s depth:%d match:%d excluded:%d filename:%s\n",
 		part_type,
 		notmuch_message_get_message_id (message),
 		indent,
-		notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH),
+		notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH) ? 1 : 0,
+		notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_EXCLUDED) ? 1 : 0,
 		notmuch_message_get_filename (message));
     } else {
 	GMimeContentDisposition *disposition = g_mime_object_get_content_disposition (meta);
@@ -646,9 +547,11 @@ format_part_text (const void *ctx, mime_node_t *node,
 	printf ("\fbody}\n");
 
     printf ("\f%s}\n", part_type);
+
+    return NOTMUCH_STATUS_SUCCESS;
 }
 
-static void
+void
 format_part_json (const void *ctx, mime_node_t *node, notmuch_bool_t first)
 {
     /* Any changes to the JSON format should be reflected in the file
@@ -658,9 +561,8 @@ format_part_json (const void *ctx, mime_node_t *node, notmuch_bool_t first)
 	printf ("{");
 	format_message_json (ctx, node->envelope_file);
 
-	printf ("\"headers\": {");
-	format_headers_json (ctx, GMIME_MESSAGE (node->part));
-	printf ("}");
+	printf ("\"headers\": ");
+	format_headers_json (ctx, GMIME_MESSAGE (node->part), FALSE);
 
 	printf (", \"body\": [");
 	format_part_json (ctx, mime_node_child (node, 0), first);
@@ -675,9 +577,10 @@ format_part_json (const void *ctx, mime_node_t *node, notmuch_bool_t first)
     GMimeObject *meta = node->envelope_part ?
 	GMIME_OBJECT (node->envelope_part) : node->part;
     GMimeContentType *content_type = g_mime_object_get_content_type (meta);
-    GMimeStream *stream_memory = g_mime_stream_mem_new ();
     const char *cid = g_mime_object_get_content_id (meta);
-    GByteArray *part_content;
+    const char *filename = GMIME_IS_PART (node->part) ?
+	g_mime_part_get_filename (GMIME_PART (node->part)) : NULL;
+    const char *terminator = "";
     int i;
 
     if (!first)
@@ -685,37 +588,25 @@ format_part_json (const void *ctx, mime_node_t *node, notmuch_bool_t first)
 
     printf ("{\"id\": %d", node->part_num);
 
-    if (node->decrypt_attempted) {
-	printf (", \"encstatus\": [{\"status\": ");
-	if (node->decrypt_success) {
-	    printf ("\"good\"");
-	} else {
-	    printf ("\"bad\"");
-	}
-	printf ("}]");
-    }
+    if (node->decrypt_attempted)
+	printf (", \"encstatus\": [{\"status\": \"%s\"}]",
+		node->decrypt_success ? "good" : "bad");
 
     if (node->verify_attempted) {
-#ifdef GMIME_ATLEAST_26
-	format_part_sigstatus_json (node->sig_list);
-#else
-	format_part_sigstatus_json (node->sig_validity);
-#endif
+	printf (", \"sigstatus\": ");
+	format_part_sigstatus_json (node);
     }
 
     printf (", \"content-type\": %s",
 	    json_quote_str (local, g_mime_content_type_to_string (content_type)));
 
-    if (cid != NULL)
-	    printf(", \"content-id\": %s", json_quote_str (local, cid));
+    if (cid)
+	printf (", \"content-id\": %s", json_quote_str (local, cid));
 
-    if (GMIME_IS_PART (node->part)) {
-	const char *filename = g_mime_part_get_filename (GMIME_PART (node->part));
-	if (filename)
-	    printf (", \"filename\": %s", json_quote_str (local, filename));
-    }
+    if (filename)
+	printf (", \"filename\": %s", json_quote_str (local, filename));
 
-    if (g_mime_content_type_is_type (content_type, "text", "*")) {
+    if (GMIME_IS_PART (node->part)) {
 	/* For non-HTML text parts, we include the content in the
 	 * JSON. Since JSON must be Unicode, we handle charset
 	 * decoding here and do not report a charset to the caller.
@@ -730,53 +621,179 @@ format_part_json (const void *ctx, mime_node_t *node, notmuch_bool_t first)
 
 	    if (content_charset != NULL)
 		printf (", \"content-charset\": %s", json_quote_str (local, content_charset));
-	} else {
+	} else if (g_mime_content_type_is_type (content_type, "text", "*")) {
+	    GMimeStream *stream_memory = g_mime_stream_mem_new ();
+	    GByteArray *part_content;
 	    show_text_part_content (node->part, stream_memory);
 	    part_content = g_mime_stream_mem_get_byte_array (GMIME_STREAM_MEM (stream_memory));
 
 	    printf (", \"content\": %s", json_quote_chararray (local, (char *) part_content->data, part_content->len));
+	    g_object_unref (stream_memory);
 	}
-    } else if (g_mime_content_type_is_type (content_type, "multipart", "*")) {
+    } else if (GMIME_IS_MULTIPART (node->part)) {
 	printf (", \"content\": [");
-    } else if (g_mime_content_type_is_type (content_type, "message", "rfc822")) {
+	terminator = "]";
+    } else if (GMIME_IS_MESSAGE (node->part)) {
 	printf (", \"content\": [{");
-    }
-
-    if (stream_memory)
-	g_object_unref (stream_memory);
-
-    if (GMIME_IS_MESSAGE (node->part)) {
-	printf ("\"headers\": {");
-	format_headers_json (local, GMIME_MESSAGE (node->part));
-	printf ("}");
+	printf ("\"headers\": ");
+	format_headers_json (local, GMIME_MESSAGE (node->part), FALSE);
 
 	printf (", \"body\": [");
+	terminator = "]}]";
     }
 
+    talloc_free (local);
+
     for (i = 0; i < node->nchildren; i++)
 	format_part_json (ctx, mime_node_child (node, i), i == 0);
 
-    if (GMIME_IS_MESSAGE (node->part))
-	printf ("]");
-
-    if (g_mime_content_type_is_type (content_type, "multipart", "*"))
-	printf ("]");
-    else if (g_mime_content_type_is_type (content_type, "message", "rfc822"))
-	printf ("}]");
-
-    printf ("}");
-
-    talloc_free (local);
+    printf ("%s}", terminator);
 }
 
-static void
+static notmuch_status_t
 format_part_json_entry (const void *ctx, mime_node_t *node, unused (int indent),
 			unused (const notmuch_show_params_t *params))
 {
     format_part_json (ctx, node, TRUE);
+
+    return NOTMUCH_STATUS_SUCCESS;
 }
 
-static void
+/* Print a message in "mboxrd" format as documented, for example,
+ * here:
+ *
+ * http://qmail.org/qmail-manual-html/man5/mbox.html
+ */
+static notmuch_status_t
+format_part_mbox (const void *ctx, mime_node_t *node, unused (int indent),
+		  unused (const notmuch_show_params_t *params))
+{
+    notmuch_message_t *message = node->envelope_file;
+
+    const char *filename;
+    FILE *file;
+    const char *from;
+
+    time_t date;
+    struct tm date_gmtime;
+    char date_asctime[26];
+
+    char *line = NULL;
+    size_t line_size;
+    ssize_t line_len;
+
+    if (!message)
+	INTERNAL_ERROR ("format_part_mbox requires a root part");
+
+    filename = notmuch_message_get_filename (message);
+    file = fopen (filename, "r");
+    if (file == NULL) {
+	fprintf (stderr, "Failed to open %s: %s\n",
+		 filename, strerror (errno));
+	return NOTMUCH_STATUS_FILE_ERROR;
+    }
+
+    from = notmuch_message_get_header (message, "from");
+    from = _extract_email_address (ctx, from);
+
+    date = notmuch_message_get_date (message);
+    gmtime_r (&date, &date_gmtime);
+    asctime_r (&date_gmtime, date_asctime);
+
+    printf ("From %s %s", from, date_asctime);
+
+    while ((line_len = getline (&line, &line_size, file)) != -1 ) {
+	if (_is_from_line (line))
+	    putchar ('>');
+	printf ("%s", line);
+    }
+
+    printf ("\n");
+
+    fclose (file);
+
+    return NOTMUCH_STATUS_SUCCESS;
+}
+
+static notmuch_status_t
+format_part_raw (unused (const void *ctx), mime_node_t *node,
+		 unused (int indent),
+		 unused (const notmuch_show_params_t *params))
+{
+    if (node->envelope_file) {
+	/* Special case the entire message to avoid MIME parsing. */
+	const char *filename;
+	FILE *file;
+	size_t size;
+	char buf[4096];
+
+	filename = notmuch_message_get_filename (node->envelope_file);
+	if (filename == NULL) {
+	    fprintf (stderr, "Error: Cannot get message filename.\n");
+	    return NOTMUCH_STATUS_FILE_ERROR;
+	}
+
+	file = fopen (filename, "r");
+	if (file == NULL) {
+	    fprintf (stderr, "Error: Cannot open file %s: %s\n", filename, strerror (errno));
+	    return NOTMUCH_STATUS_FILE_ERROR;
+	}
+
+	while (!feof (file)) {
+	    size = fread (buf, 1, sizeof (buf), file);
+	    if (ferror (file)) {
+		fprintf (stderr, "Error: Read failed from %s\n", filename);
+		fclose (file);
+		return NOTMUCH_STATUS_FILE_ERROR;
+	    }
+
+	    if (fwrite (buf, size, 1, stdout) != 1) {
+		fprintf (stderr, "Error: Write failed\n");
+		fclose (file);
+		return NOTMUCH_STATUS_FILE_ERROR;
+	    }
+	}
+
+	fclose (file);
+	return NOTMUCH_STATUS_SUCCESS;
+    }
+
+    GMimeStream *stream_stdout;
+    GMimeStream *stream_filter = NULL;
+
+    stream_stdout = g_mime_stream_file_new (stdout);
+    g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
+
+    stream_filter = g_mime_stream_filter_new (stream_stdout);
+
+    if (GMIME_IS_PART (node->part)) {
+	/* For leaf parts, we emit only the transfer-decoded
+	 * body. */
+	GMimeDataWrapper *wrapper;
+	wrapper = g_mime_part_get_content_object (GMIME_PART (node->part));
+
+	if (wrapper && stream_filter)
+	    g_mime_data_wrapper_write_to_stream (wrapper, stream_filter);
+    } else {
+	/* Write out the whole part.  For message parts (the root
+	 * part and embedded message parts), this will be the
+	 * message including its headers (but not the
+	 * encapsulating part's headers).  For multipart parts,
+	 * this will include the headers. */
+	if (stream_filter)
+	    g_mime_object_write_to_stream (node->part, stream_filter);
+    }
+
+    if (stream_filter)
+	g_object_unref (stream_filter);
+
+    if (stream_stdout)
+	g_object_unref(stream_stdout);
+
+    return NOTMUCH_STATUS_SUCCESS;
+}
+
+static notmuch_status_t
 show_message (void *ctx,
 	      const notmuch_show_format_t *format,
 	      notmuch_message_t *message,
@@ -786,14 +803,18 @@ show_message (void *ctx,
     if (format->part) {
 	void *local = talloc_new (ctx);
 	mime_node_t *root, *part;
-
-	if (mime_node_open (local, message, params->cryptoctx, params->decrypt,
-			    &root) == NOTMUCH_STATUS_SUCCESS &&
-	    (part = mime_node_seek_dfs (root, (params->part < 0 ?
-					       0 : params->part))))
-	    format->part (local, part, indent, params);
+	notmuch_status_t status;
+
+	status = mime_node_open (local, message, params->cryptoctx,
+				 params->decrypt, &root);
+	if (status)
+	    goto DONE;
+	part = mime_node_seek_dfs (root, (params->part < 0 ? 0 : params->part));
+	if (part)
+	    status = format->part (local, part, indent, params);
+      DONE:
 	talloc_free (local);
-	return;
+	return status;
     }
 
     if (params->part <= 0) {
@@ -817,9 +838,11 @@ show_message (void *ctx,
 
 	fputs (format->message_end, stdout);
     }
+
+    return NOTMUCH_STATUS_SUCCESS;
 }
 
-static void
+static notmuch_status_t
 show_messages (void *ctx,
 	       const notmuch_show_format_t *format,
 	       notmuch_messages_t *messages,
@@ -830,6 +853,7 @@ show_messages (void *ctx,
     notmuch_bool_t match;
     int first_set = 1;
     int next_indent;
+    notmuch_status_t status, res = NOTMUCH_STATUS_SUCCESS;
 
     fputs (format->message_set_start, stdout);
 
@@ -850,17 +874,22 @@ show_messages (void *ctx,
 	next_indent = indent;
 
 	if (match || params->entire_thread) {
-	    show_message (ctx, format, message, indent, params);
+	    status = show_message (ctx, format, message, indent, params);
+	    if (status && !res)
+		res = status;
 	    next_indent = indent + 1;
 
-	    fputs (format->message_set_sep, stdout);
+	    if (!status)
+		fputs (format->message_set_sep, stdout);
 	}
 
-	show_messages (ctx,
-		       format,
-		       notmuch_message_get_replies (message),
-		       next_indent,
-		       params);
+	status = show_messages (ctx,
+				format,
+				notmuch_message_get_replies (message),
+				next_indent,
+				params);
+	if (status && !res)
+	    res = status;
 
 	notmuch_message_destroy (message);
 
@@ -868,6 +897,8 @@ show_messages (void *ctx,
     }
 
     fputs (format->message_set_end, stdout);
+
+    return res;
 }
 
 /* Formatted output of single message */
@@ -895,50 +926,7 @@ do_show_single (void *ctx,
 
     notmuch_message_set_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH, 1);
 
-    /* Special case for --format=raw of full single message, just cat out file */
-    if (params->raw && 0 == params->part) {
-
-	const char *filename;
-	FILE *file;
-	size_t size;
-	char buf[4096];
-
-	filename = notmuch_message_get_filename (message);
-	if (filename == NULL) {
-	    fprintf (stderr, "Error: Cannot message filename.\n");
-	    return 1;
-	}
-
-	file = fopen (filename, "r");
-	if (file == NULL) {
-	    fprintf (stderr, "Error: Cannot open file %s: %s\n", filename, strerror (errno));
-	    return 1;
-	}
-
-	while (!feof (file)) {
-	    size = fread (buf, 1, sizeof (buf), file);
-	    if (ferror (file)) {
-		fprintf (stderr, "Error: Read failed from %s\n", filename);
-		fclose (file);
-		return 1;
-	    }
-
-	    if (fwrite (buf, size, 1, stdout) != 1) {
-		fprintf (stderr, "Error: Write failed\n");
-		fclose (file);
-		return 1;
-	    }
-	}
-
-	fclose (file);
-
-    } else {
-
-	show_message (ctx, format, message, 0, params);
-
-    }
-
-    return 0;
+    return show_message (ctx, format, message, 0, params) != NOTMUCH_STATUS_SUCCESS;
 }
 
 /* Formatted output of threads */
@@ -952,6 +940,7 @@ do_show (void *ctx,
     notmuch_thread_t *thread;
     notmuch_messages_t *messages;
     int first_toplevel = 1;
+    notmuch_status_t status, res = NOTMUCH_STATUS_SUCCESS;
 
     fputs (format->message_set_start, stdout);
 
@@ -971,7 +960,9 @@ do_show (void *ctx,
 	    fputs (format->message_set_sep, stdout);
 	first_toplevel = 0;
 
-	show_messages (ctx, format, messages, 0, params);
+	status = show_messages (ctx, format, messages, 0, params);
+	if (status && !res)
+	    res = status;
 
 	notmuch_thread_destroy (thread);
 
@@ -979,7 +970,7 @@ do_show (void *ctx,
 
     fputs (format->message_set_end, stdout);
 
-    return 0;
+    return res != NOTMUCH_STATUS_SUCCESS;
 }
 
 enum {
@@ -1002,6 +993,7 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
     notmuch_show_params_t params = { .part = -1 };
     int format_sel = NOTMUCH_FORMAT_NOT_SPECIFIED;
     notmuch_bool_t verify = FALSE;
+    notmuch_bool_t no_exclude = FALSE;
 
     notmuch_opt_desc_t options[] = {
 	{ NOTMUCH_OPT_KEYWORD, &format_sel, "format", 'f',
@@ -1014,6 +1006,7 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	{ NOTMUCH_OPT_BOOLEAN, &params.entire_thread, "entire-thread", 't', 0 },
 	{ NOTMUCH_OPT_BOOLEAN, &params.decrypt, "decrypt", 'd', 0 },
 	{ NOTMUCH_OPT_BOOLEAN, &verify, "verify", 'v', 0 },
+	{ NOTMUCH_OPT_BOOLEAN, &no_exclude, "no-exclude", 'n', 0 },
 	{ 0, 0, 0, 0, 0 }
     };
 
@@ -1044,6 +1037,7 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	    fprintf (stderr, "Error: specifying parts is incompatible with mbox output format.\n");
 	    return 1;
 	}
+
 	format = &format_mbox;
 	break;
     case NOTMUCH_FORMAT_RAW:
@@ -1101,10 +1095,28 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	return 1;
     }
 
+    /* if format=mbox then we can not output excluded messages as
+     * there is no way to make the exclude flag available */
+    if (format_sel == NOTMUCH_FORMAT_MBOX)
+	notmuch_query_set_omit_excluded_messages (query, TRUE);
+
+    /* If a single message is requested we do not use search_excludes. */
     if (params.part >= 0)
 	ret = do_show_single (ctx, query, format, &params);
-    else
+    else {
+	if (!no_exclude) {
+	    const char **search_exclude_tags;
+	    size_t search_exclude_tags_length;
+	    unsigned int i;
+
+	    search_exclude_tags = notmuch_config_get_search_exclude_tags
+		(config, &search_exclude_tags_length);
+	    for (i = 0; i < search_exclude_tags_length; i++)
+		notmuch_query_add_tag_exclude (query, search_exclude_tags[i]);
+	}
 	ret = do_show (ctx, query, format, &params);
+    }
+
 
     notmuch_query_destroy (query);
     notmuch_database_close (notmuch);