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+From: Jani Nikula <jani@nikula.org>\r
+To: david@tethera.net, notmuch@notmuchmail.org\r
+Subject: Re: [Patch v3b 5/9] notmuch-restore: add support for input format\r
+ 'batch-tag'\r
+In-Reply-To: <1354843607-17980-6-git-send-email-david@tethera.net>\r
+References: <1354843607-17980-1-git-send-email-david@tethera.net>\r
+ <1354843607-17980-6-git-send-email-david@tethera.net>\r
+User-Agent: Notmuch/0.14+138~g7041c56 (http://notmuchmail.org) Emacs/23.4.1\r
+ (i686-pc-linux-gnu)\r
+Date: Sat, 08 Dec 2012 00:50:30 +0200\r
+Message-ID: <87r4n1xyrt.fsf@nikula.org>\r
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+ ALoCoQmXhQ8xCv3wzjRKWVpqETFqwkaf92pBPcKOq56wLOqHhphpbo1OFT1FWIspp5bt6CEnIJxW\r
+Cc: David Bremner <bremner@debian.org>\r
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+\r
+\r
+LGTM.\r
+\r
+On Fri, 07 Dec 2012, david@tethera.net wrote:\r
+> From: David Bremner <bremner@debian.org>\r
+>\r
+> This can be enabled with the new --format=batch-tag command line\r
+> option to "notmuch restore". The input must consist of lines of the\r
+> format:\r
+>\r
+> +<tag>|-<tag> [...] [--] id:<msg-id>\r
+>\r
+> Each line is interpreted similarly to "notmuch tag" command line\r
+> arguments. The delimiter is one or more spaces ' '. Any characters in\r
+> <tag> and <search-terms> MAY be hex encoded with %NN where NN is the\r
+> hexadecimal value of the character. Any ' ' and '%' characters in\r
+> <tag> and <msg-id> MUST be hex encoded (using %20 and %25,\r
+> respectively). Any characters that are not part of <tag> or\r
+> <search-terms> MUST NOT be hex encoded.\r
+>\r
+> Leading and trailing space ' ' is ignored. Empty lines and lines\r
+> beginning with '#' are ignored.\r
+>\r
+> Commit message mainly stolen from Jani's batch tagging commit, to\r
+> follow.\r
+> ---\r
+> notmuch-restore.c | 206 ++++++++++++++++++++++++++++++++++-------------------\r
+> 1 file changed, 131 insertions(+), 75 deletions(-)\r
+>\r
+> diff --git a/notmuch-restore.c b/notmuch-restore.c\r
+> index f03dcac..ceec2d3 100644\r
+> --- a/notmuch-restore.c\r
+> +++ b/notmuch-restore.c\r
+> @@ -19,18 +19,22 @@\r
+> */\r
+> \r
+> #include "notmuch-client.h"\r
+> +#include "dump-restore-private.h"\r
+> +#include "tag-util.h"\r
+> +#include "string-util.h"\r
+> +\r
+> +static volatile sig_atomic_t interrupted;\r
+> +static regex_t regex;\r
+> \r
+> static int\r
+> -tag_message (notmuch_database_t *notmuch, const char *message_id,\r
+> - char *file_tags, notmuch_bool_t remove_all,\r
+> - notmuch_bool_t synchronize_flags)\r
+> +tag_message (unused (void *ctx),\r
+> + notmuch_database_t *notmuch,\r
+> + const char *message_id,\r
+> + tag_op_list_t *tag_ops,\r
+> + tag_op_flag_t flags)\r
+> {\r
+> notmuch_status_t status;\r
+> - notmuch_tags_t *db_tags;\r
+> - char *db_tags_str;\r
+> notmuch_message_t *message = NULL;\r
+> - const char *tag;\r
+> - char *next;\r
+> int ret = 0;\r
+> \r
+> status = notmuch_database_find_message (notmuch, message_id, &message);\r
+> @@ -44,55 +48,62 @@ tag_message (notmuch_database_t *notmuch, const char *message_id,\r
+> \r
+> /* In order to detect missing messages, this check/optimization is\r
+> * intentionally done *after* first finding the message. */\r
+> - if (! remove_all && (file_tags == NULL || *file_tags == '\0'))\r
+> - goto DONE;\r
+> -\r
+> - db_tags_str = NULL;\r
+> - for (db_tags = notmuch_message_get_tags (message);\r
+> - notmuch_tags_valid (db_tags);\r
+> - notmuch_tags_move_to_next (db_tags)) {\r
+> - tag = notmuch_tags_get (db_tags);\r
+> -\r
+> - if (db_tags_str)\r
+> - db_tags_str = talloc_asprintf_append (db_tags_str, " %s", tag);\r
+> - else\r
+> - db_tags_str = talloc_strdup (message, tag);\r
+> - }\r
+> + if ((flags & TAG_FLAG_REMOVE_ALL) || tag_op_list_size (tag_ops))\r
+> + tag_op_list_apply (message, tag_ops, flags);\r
+> \r
+> - if (((file_tags == NULL || *file_tags == '\0') &&\r
+> - (db_tags_str == NULL || *db_tags_str == '\0')) ||\r
+> - (file_tags && db_tags_str && strcmp (file_tags, db_tags_str) == 0))\r
+> - goto DONE;\r
+> + notmuch_message_destroy (message);\r
+> \r
+> - notmuch_message_freeze (message);\r
+> + return ret;\r
+> +}\r
+> \r
+> - if (remove_all)\r
+> - notmuch_message_remove_all_tags (message);\r
+> +static int\r
+> +parse_sup_line (void *ctx, char *line,\r
+> + char **query_str, tag_op_list_t *tag_ops)\r
+> +{\r
+> \r
+> - next = file_tags;\r
+> - while (next) {\r
+> - tag = strsep (&next, " ");\r
+> - if (*tag == '\0')\r
+> - continue;\r
+> - status = notmuch_message_add_tag (message, tag);\r
+> - if (status) {\r
+> - fprintf (stderr, "Error applying tag %s to message %s:\n",\r
+> - tag, message_id);\r
+> - fprintf (stderr, "%s\n", notmuch_status_to_string (status));\r
+> - ret = 1;\r
+> - }\r
+> + regmatch_t match[3];\r
+> + char *file_tags;\r
+> + int rerr;\r
+> +\r
+> + tag_op_list_reset (tag_ops);\r
+> +\r
+> + chomp_newline (line);\r
+> +\r
+> + /* Silently ignore blank lines */\r
+> + if (line[0] == '\0') {\r
+> + return 1;\r
+> + }\r
+> +\r
+> + rerr = xregexec (®ex, line, 3, match, 0);\r
+> + if (rerr == REG_NOMATCH) {\r
+> + fprintf (stderr, "Warning: Ignoring invalid sup format line: %s\n",\r
+> + line);\r
+> + return 1;\r
+> }\r
+> \r
+> - notmuch_message_thaw (message);\r
+> + *query_str = talloc_strndup (ctx, line + match[1].rm_so,\r
+> + match[1].rm_eo - match[1].rm_so);\r
+> + file_tags = talloc_strndup (ctx, line + match[2].rm_so,\r
+> + match[2].rm_eo - match[2].rm_so);\r
+> \r
+> - if (synchronize_flags)\r
+> - notmuch_message_tags_to_maildir_flags (message);\r
+> + char *tok = file_tags;\r
+> + size_t tok_len = 0;\r
+> \r
+> - DONE:\r
+> - if (message)\r
+> - notmuch_message_destroy (message);\r
+> + tag_op_list_reset (tag_ops);\r
+> +\r
+> + while ((tok = strtok_len (tok + tok_len, " ", &tok_len)) != NULL) {\r
+> +\r
+> + if (*(tok + tok_len) != '\0') {\r
+> + *(tok + tok_len) = '\0';\r
+> + tok_len++;\r
+> + }\r
+> +\r
+> + if (tag_op_list_append (ctx, tag_ops, tok, FALSE))\r
+> + return -1;\r
+> + }\r
+> +\r
+> + return 0;\r
+> \r
+> - return ret;\r
+> }\r
+> \r
+> int\r
+> @@ -100,16 +111,19 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])\r
+> {\r
+> notmuch_config_t *config;\r
+> notmuch_database_t *notmuch;\r
+> - notmuch_bool_t synchronize_flags;\r
+> notmuch_bool_t accumulate = FALSE;\r
+> + tag_op_flag_t flags = 0;\r
+> + tag_op_list_t *tag_ops;\r
+> +\r
+> char *input_file_name = NULL;\r
+> FILE *input = stdin;\r
+> char *line = NULL;\r
+> size_t line_size;\r
+> ssize_t line_len;\r
+> - regex_t regex;\r
+> - int rerr;\r
+> +\r
+> + int ret = 0;\r
+> int opt_index;\r
+> + int input_format = DUMP_FORMAT_AUTO;\r
+> \r
+> config = notmuch_config_open (ctx, NULL, NULL);\r
+> if (config == NULL)\r
+> @@ -119,9 +133,15 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])\r
+> NOTMUCH_DATABASE_MODE_READ_WRITE, ¬much))\r
+> return 1;\r
+> \r
+> - synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config);\r
+> + if (notmuch_config_get_maildir_synchronize_flags (config))\r
+> + flags |= TAG_FLAG_MAILDIR_SYNC;\r
+> \r
+> notmuch_opt_desc_t options[] = {\r
+> + { NOTMUCH_OPT_KEYWORD, &input_format, "format", 'f',\r
+> + (notmuch_keyword_t []){ { "auto", DUMP_FORMAT_AUTO },\r
+> + { "batch-tag", DUMP_FORMAT_BATCH_TAG },\r
+> + { "sup", DUMP_FORMAT_SUP },\r
+> + { 0, 0 } } },\r
+> { NOTMUCH_OPT_STRING, &input_file_name, "input", 'i', 0 },\r
+> { NOTMUCH_OPT_BOOLEAN, &accumulate, "accumulate", 'a', 0 },\r
+> { 0, 0, 0, 0, 0 }\r
+> @@ -134,6 +154,9 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])\r
+> return 1;\r
+> }\r
+> \r
+> + if (! accumulate)\r
+> + flags |= TAG_FLAG_REMOVE_ALL;\r
+> +\r
+> if (input_file_name) {\r
+> input = fopen (input_file_name, "r");\r
+> if (input == NULL) {\r
+> @@ -154,44 +177,77 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])\r
+> * non-space characters for the message-id, then one or more\r
+> * spaces, then a list of space-separated tags as a sequence of\r
+> * characters within literal '(' and ')'. */\r
+> - if ( xregcomp (®ex,\r
+> - "^([^ ]+) \\(([^)]*)\\)$",\r
+> - REG_EXTENDED) )\r
+> - INTERNAL_ERROR ("compile time constant regex failed.");\r
+> + char *p;\r
+> \r
+> - while ((line_len = getline (&line, &line_size, input)) != -1) {\r
+> - regmatch_t match[3];\r
+> - char *message_id, *file_tags;\r
+> + line_len = getline (&line, &line_size, input);\r
+> + if (line_len == 0)\r
+> + return 0;\r
+> \r
+> - chomp_newline (line);\r
+> + tag_ops = tag_op_list_create (ctx);\r
+> + if (tag_ops == NULL) {\r
+> + fprintf (stderr, "Out of memory.\n");\r
+> + return 1;\r
+> + }\r
+> \r
+> - rerr = xregexec (®ex, line, 3, match, 0);\r
+> - if (rerr == REG_NOMATCH) {\r
+> - fprintf (stderr, "Warning: Ignoring invalid input line: %s\n",\r
+> - line);\r
+> - continue;\r
+> + for (p = line; (input_format == DUMP_FORMAT_AUTO) && *p; p++) {\r
+> + if (*p == '(')\r
+> + input_format = DUMP_FORMAT_SUP;\r
+> + }\r
+> +\r
+> + if (input_format == DUMP_FORMAT_AUTO)\r
+> + input_format = DUMP_FORMAT_BATCH_TAG;\r
+> +\r
+> + if (input_format == DUMP_FORMAT_SUP)\r
+> + if ( xregcomp (®ex,\r
+> + "^([^ ]+) \\(([^)]*)\\)$",\r
+> + REG_EXTENDED) )\r
+> + INTERNAL_ERROR ("compile time constant regex failed.");\r
+> +\r
+> + do {\r
+> + char *query_string;\r
+> +\r
+> + if (input_format == DUMP_FORMAT_SUP) {\r
+> + ret = parse_sup_line (ctx, line, &query_string, tag_ops);\r
+> + } else {\r
+> + ret = parse_tag_line (ctx, line, TAG_FLAG_BE_GENEROUS,\r
+> + &query_string, tag_ops);\r
+> +\r
+> + if (ret == 0) {\r
+> + if (strncmp ("id:", query_string, 3) != 0) {\r
+> + fprintf (stderr, "Unsupported query: %s\n", query_string);\r
+> + continue;\r
+> + }\r
+> + /* delete id: from front of string; tag_message\r
+> + * expects a raw message-id.\r
+> + *\r
+> + * XXX: Note that query string id:foo and bar will be\r
+> + * interpreted as a message id "foo and bar". This\r
+> + * should eventually be fixed to give a better error\r
+> + * message.\r
+> + */\r
+> + query_string = query_string + 3;\r
+> + }\r
+> }\r
+> \r
+> - message_id = xstrndup (line + match[1].rm_so,\r
+> - match[1].rm_eo - match[1].rm_so);\r
+> - file_tags = xstrndup (line + match[2].rm_so,\r
+> - match[2].rm_eo - match[2].rm_so);\r
+> + if (ret > 0)\r
+> + continue;\r
+> \r
+> - tag_message (notmuch, message_id, file_tags, ! accumulate,\r
+> - synchronize_flags);\r
+> + if (ret < 0 || tag_message (ctx, notmuch, query_string,\r
+> + tag_ops, flags))\r
+> + break;\r
+> \r
+> - free (message_id);\r
+> - free (file_tags);\r
+> - }\r
+> + } while ((line_len = getline (&line, &line_size, input)) != -1);\r
+> \r
+> - regfree (®ex);\r
+> + if (input_format == DUMP_FORMAT_SUP)\r
+> + regfree (®ex);\r
+> \r
+> if (line)\r
+> free (line);\r
+> \r
+> notmuch_database_destroy (notmuch);\r
+> +\r
+> if (input != stdin)\r
+> fclose (input);\r
+> \r
+> - return 0;\r
+> + return ret;\r
+> }\r
+> -- \r
+> 1.7.10.4\r
+>\r
+> _______________________________________________\r
+> notmuch mailing list\r
+> notmuch@notmuchmail.org\r
+> http://notmuchmail.org/mailman/listinfo/notmuch\r