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+From: Austin Clements <amdragon@MIT.EDU>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH 1/5] show: Allow formatters to return errors\r
+Date: Sat, 3 Mar 2012 00:20:21 -0500\r
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+\r
+Formatter errors are propagated to the exit status of notmuch show.\r
+\r
+This isn't used by the JSON or text formatters, but it will be useful\r
+for the raw format, which is pickier.\r
+---\r
+ notmuch-client.h | 6 ++--\r
+ notmuch-show.c | 69 +++++++++++++++++++++++++++++++++++------------------\r
+ 2 files changed, 48 insertions(+), 27 deletions(-)\r
+\r
+diff --git a/notmuch-client.h b/notmuch-client.h\r
+index f4a62cc..a220fe4 100644\r
+--- a/notmuch-client.h\r
++++ b/notmuch-client.h\r
+@@ -67,9 +67,9 @@ struct notmuch_show_params;\r
+ \r
+ typedef struct notmuch_show_format {\r
+ const char *message_set_start;\r
+- void (*part) (const void *ctx,\r
+- struct mime_node *node, int indent,\r
+- const struct notmuch_show_params *params);\r
++ notmuch_status_t (*part) (const void *ctx,\r
++ struct mime_node *node, int indent,\r
++ const struct notmuch_show_params *params);\r
+ const char *message_start;\r
+ void (*message) (const void *ctx,\r
+ notmuch_message_t *message,\r
+diff --git a/notmuch-show.c b/notmuch-show.c\r
+index 6a171a4..648f468 100644\r
+--- a/notmuch-show.c\r
++++ b/notmuch-show.c\r
+@@ -23,7 +23,7 @@\r
+ static void\r
+ format_headers_message_part_text (GMimeMessage *message);\r
+ \r
+-static void\r
++static notmuch_status_t\r
+ format_part_text (const void *ctx, mime_node_t *node,\r
+ int indent, const notmuch_show_params_t *params);\r
+ \r
+@@ -34,7 +34,7 @@ static const notmuch_show_format_t format_text = {\r
+ .message_set_end = ""\r
+ };\r
+ \r
+-static void\r
++static notmuch_status_t\r
+ format_part_json_entry (const void *ctx, mime_node_t *node,\r
+ int indent, const notmuch_show_params_t *params);\r
+ \r
+@@ -562,7 +562,7 @@ format_part_content_raw (GMimeObject *part)\r
+ g_object_unref(stream_stdout);\r
+ }\r
+ \r
+-static void\r
++static notmuch_status_t\r
+ format_part_text (const void *ctx, mime_node_t *node,\r
+ int indent, const notmuch_show_params_t *params)\r
+ {\r
+@@ -650,6 +650,8 @@ format_part_text (const void *ctx, mime_node_t *node,\r
+ printf ("\fbody}\n");\r
+ \r
+ printf ("\f%s}\n", part_type);\r
++\r
++ return NOTMUCH_STATUS_SUCCESS;\r
+ }\r
+ \r
+ static void\r
+@@ -751,14 +753,16 @@ format_part_json (const void *ctx, mime_node_t *node, notmuch_bool_t first)\r
+ printf ("%s}", terminator);\r
+ }\r
+ \r
+-static void\r
++static notmuch_status_t\r
+ format_part_json_entry (const void *ctx, mime_node_t *node, unused (int indent),\r
+ unused (const notmuch_show_params_t *params))\r
+ {\r
+ format_part_json (ctx, node, TRUE);\r
++\r
++ return NOTMUCH_STATUS_SUCCESS;\r
+ }\r
+ \r
+-static void\r
++static notmuch_status_t\r
+ show_message (void *ctx,\r
+ const notmuch_show_format_t *format,\r
+ notmuch_message_t *message,\r
+@@ -768,14 +772,18 @@ show_message (void *ctx,\r
+ if (format->part) {\r
+ void *local = talloc_new (ctx);\r
+ mime_node_t *root, *part;\r
++ notmuch_status_t status;\r
+ \r
+- if (mime_node_open (local, message, params->cryptoctx, params->decrypt,\r
+- &root) == NOTMUCH_STATUS_SUCCESS &&\r
+- (part = mime_node_seek_dfs (root, (params->part < 0 ?\r
+- 0 : params->part))))\r
+- format->part (local, part, indent, params);\r
++ status = mime_node_open (local, message, params->cryptoctx,\r
++ params->decrypt, &root);\r
++ if (status)\r
++ goto DONE;\r
++ part = mime_node_seek_dfs (root, (params->part < 0 ? 0 : params->part));\r
++ if (part)\r
++ status = format->part (local, part, indent, params);\r
++ DONE:\r
+ talloc_free (local);\r
+- return;\r
++ return status;\r
+ }\r
+ \r
+ if (params->part <= 0) {\r
+@@ -799,9 +807,11 @@ show_message (void *ctx,\r
+ \r
+ fputs (format->message_end, stdout);\r
+ }\r
++\r
++ return NOTMUCH_STATUS_SUCCESS;\r
+ }\r
+ \r
+-static void\r
++static notmuch_status_t\r
+ show_messages (void *ctx,\r
+ const notmuch_show_format_t *format,\r
+ notmuch_messages_t *messages,\r
+@@ -812,6 +822,7 @@ show_messages (void *ctx,\r
+ notmuch_bool_t match;\r
+ int first_set = 1;\r
+ int next_indent;\r
++ notmuch_status_t status, res = NOTMUCH_STATUS_SUCCESS;\r
+ \r
+ fputs (format->message_set_start, stdout);\r
+ \r
+@@ -832,17 +843,22 @@ show_messages (void *ctx,\r
+ next_indent = indent;\r
+ \r
+ if (match || params->entire_thread) {\r
+- show_message (ctx, format, message, indent, params);\r
++ status = show_message (ctx, format, message, indent, params);\r
++ if (status && !res)\r
++ res = status;\r
+ next_indent = indent + 1;\r
+ \r
+- fputs (format->message_set_sep, stdout);\r
++ if (!status)\r
++ fputs (format->message_set_sep, stdout);\r
+ }\r
+ \r
+- show_messages (ctx,\r
+- format,\r
+- notmuch_message_get_replies (message),\r
+- next_indent,\r
+- params);\r
++ status = show_messages (ctx,\r
++ format,\r
++ notmuch_message_get_replies (message),\r
++ next_indent,\r
++ params);\r
++ if (status && !res)\r
++ res = status;\r
+ \r
+ notmuch_message_destroy (message);\r
+ \r
+@@ -850,6 +866,8 @@ show_messages (void *ctx,\r
+ }\r
+ \r
+ fputs (format->message_set_end, stdout);\r
++\r
++ return res;\r
+ }\r
+ \r
+ /* Formatted output of single message */\r
+@@ -914,13 +932,13 @@ do_show_single (void *ctx,\r
+ \r
+ fclose (file);\r
+ \r
++ return 0;\r
++\r
+ } else {\r
+ \r
+- show_message (ctx, format, message, 0, params);\r
++ return show_message (ctx, format, message, 0, params) != NOTMUCH_STATUS_SUCCESS;\r
+ \r
+ }\r
+-\r
+- return 0;\r
+ }\r
+ \r
+ /* Formatted output of threads */\r
+@@ -934,6 +952,7 @@ do_show (void *ctx,\r
+ notmuch_thread_t *thread;\r
+ notmuch_messages_t *messages;\r
+ int first_toplevel = 1;\r
++ notmuch_status_t status, res = NOTMUCH_STATUS_SUCCESS;\r
+ \r
+ fputs (format->message_set_start, stdout);\r
+ \r
+@@ -953,7 +972,9 @@ do_show (void *ctx,\r
+ fputs (format->message_set_sep, stdout);\r
+ first_toplevel = 0;\r
+ \r
+- show_messages (ctx, format, messages, 0, params);\r
++ status = show_messages (ctx, format, messages, 0, params);\r
++ if (status && !res)\r
++ res = status;\r
+ \r
+ notmuch_thread_destroy (thread);\r
+ \r
+@@ -961,7 +982,7 @@ do_show (void *ctx,\r
+ \r
+ fputs (format->message_set_end, stdout);\r
+ \r
+- return 0;\r
++ return res != NOTMUCH_STATUS_SUCCESS;\r
+ }\r
+ \r
+ enum {\r
+-- \r
+1.7.7.3\r
+\r
projects / notmuch-archives.git / commitdiff