From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from localhost (localhost [127.0.0.1]) by olra.theworths.org (Postfix) with ESMTP id C7824429E30 for ; Sun, 18 Dec 2011 05:15:42 -0800 (PST) X-Virus-Scanned: Debian amavisd-new at olra.theworths.org X-Spam-Flag: NO X-Spam-Score: -2.3 X-Spam-Level: X-Spam-Status: No, score=-2.3 tagged_above=-999 required=5 tests=[RCVD_IN_DNSWL_MED=-2.3] autolearn=disabled Received: from olra.theworths.org ([127.0.0.1]) by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VxMiOGte2CmW for ; Sun, 18 Dec 2011 05:15:41 -0800 (PST) Received: from tempo.its.unb.ca (tempo.its.unb.ca [131.202.1.21]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by olra.theworths.org (Postfix) with ESMTPS id 56F27431FB6 for ; Sun, 18 Dec 2011 05:15:41 -0800 (PST) Received: from zancas.localnet (fctnnbsc36w-156034079193.pppoe-dynamic.High-Speed.nb.bellaliant.net [156.34.79.193]) (authenticated bits=0) by tempo.its.unb.ca (8.13.8/8.13.8) with ESMTP id pBIDFduk017885 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO); Sun, 18 Dec 2011 09:15:40 -0400 Received: from bremner by zancas.localnet with local (Exim 4.77) (envelope-from ) id 1RcGaZ-0008RY-3F; Sun, 18 Dec 2011 09:15:39 -0400 From: David Bremner To: notmuch@notmuchmail.org Subject: [PATCH Draft 2 8/9] notmuch-restore: auto detect format of backup Date: Sun, 18 Dec 2011 09:15:10 -0400 Message-Id: <1324214111-32079-9-git-send-email-david@tethera.net> X-Mailer: git-send-email 1.7.7.3 In-Reply-To: <1324214111-32079-1-git-send-email-david@tethera.net> References: <1324214111-32079-1-git-send-email-david@tethera.net> Cc: David Bremner X-BeenThere: notmuch@notmuchmail.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Dec 2011 13:15:43 -0000 From: David Bremner The simple heuristic relies on the fact that '(' is not part of the character set used by hex-escape. Since hex-escape is designed to be OK for pathnames (and shells), this seems like a reasonable assumption. In principle the --format argument to notmuch-restore is notmuch needed at this point, but it adds literally 5 lines of argument description, so I left it. --- dump-restore-private.h | 5 +++-- notmuch-restore.c | 45 ++++++++++++++++++++++++++++++++------------- 2 files changed, 35 insertions(+), 15 deletions(-) diff --git a/dump-restore-private.h b/dump-restore-private.h index 34a5022..67795e5 100644 --- a/dump-restore-private.h +++ b/dump-restore-private.h @@ -5,8 +5,9 @@ #include "command-line-arguments.h" typedef enum dump_formats { - DUMP_FORMAT_SUP, - DUMP_FORMAT_NOTMUCH + DUMP_FORMAT_AUTO, + DUMP_FORMAT_NOTMUCH, + DUMP_FORMAT_SUP } dump_format_t; #endif diff --git a/notmuch-restore.c b/notmuch-restore.c index f618b47..340f31f 100644 --- a/notmuch-restore.c +++ b/notmuch-restore.c @@ -36,7 +36,7 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[]) regex_t regex; int rerr; int opt_index; - int input_format = DUMP_FORMAT_SUP; + int input_format = DUMP_FORMAT_AUTO; config = notmuch_config_open (ctx, NULL, NULL); if (config == NULL) @@ -50,7 +50,11 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[]) synchronize_flags = notmuch_config_get_maildir_synchronize_flags (config); notmuch_opt_desc_t options[] = { - FORMAT_DESC (input_format), + { NOTMUCH_OPT_KEYWORD, &input_format, "format", 'f', + (notmuch_keyword_t []){ { "auto", DUMP_FORMAT_AUTO }, + { "notmuch", DUMP_FORMAT_NOTMUCH }, + { "sup", DUMP_FORMAT_SUP }, + {0, 0} } }, { NOTMUCH_OPT_POSITION, &input_file_name, 0, 0, 0 }, { NOTMUCH_OPT_BOOLEAN, &accumulate, "accumulate", 'a', 0 }, { 0, 0, 0, 0, 0 } @@ -80,17 +84,6 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[]) return 1; } - /* Dump output is one line per message. We match a sequence of - * non-space characters for the message-id, then one or more - * spaces, then a list of space-separated tags as a sequence of - * characters within literal '(' and ')'. */ - if (input_format == DUMP_FORMAT_SUP) { - if ( xregcomp (®ex, - "^([^ ]+) \\(([^)]*)\\)$", - REG_EXTENDED) ) - INTERNAL_ERROR("compile time constant regex failed."); - } - /* These are out here to re-use the buffers with hex_decode */ @@ -98,6 +91,7 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[]) size_t message_id_size = 0; char *tag = NULL; size_t tag_size = 0; + notmuch_bool_t first_line = TRUE; while ((line_len = getline (&line, &line_size, input)) != -1) { regmatch_t match[3]; @@ -109,6 +103,30 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[]) char *db_tags_str; chomp_newline (line); + if (first_line && input_format == DUMP_FORMAT_AUTO) { + char *p; + + for (p = line; *p; p++) { + if (*p == '(') + input_format = DUMP_FORMAT_SUP; + } + + if (input_format == DUMP_FORMAT_AUTO) + input_format = DUMP_FORMAT_NOTMUCH; + + } + + /* sup dump output is one line per message. We match a + * sequence of non-space characters for the message-id, then + * one or more spaces, then a list of space-separated tags as + * a sequence of characters within literal '(' and ')'. */ + if (first_line && input_format == DUMP_FORMAT_SUP) { + if ( xregcomp (®ex, + "^([^ ]+) \\(([^)]*)\\)$", + REG_EXTENDED) ) + INTERNAL_ERROR("compile time constant regex failed."); + } + /* Silently ignore blank lines */ @@ -141,6 +159,7 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[]) file_tags = xstrdup (p); } + first_line = FALSE; status = notmuch_database_find_message (notmuch, message_id, &message); if (status || message == NULL) { -- 1.7.7.3