[PATCH v3 06/10] notmuch-restore: add 'notmuch format' support, auto detect
David Bremner
david at tethera.net
Sat Jan 14 17:40:20 PST 2012
From: David Bremner <bremner at debian.org>
This is format is whitespace separated tokens, encoded by
util/hex-escape.c
The format detection 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 | 111 ++++++++++++++++++++++++++++++++++++++---------
2 files changed, 92 insertions(+), 24 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 87d9772..3fdfecc 100644
--- a/notmuch-restore.c
+++ b/notmuch-restore.c
@@ -19,6 +19,7 @@
*/
#include "notmuch-client.h"
+#include "dump-restore-private.h"
int
notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
@@ -35,6 +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_AUTO;
config = notmuch_config_open (ctx, NULL, NULL);
if (config == NULL)
@@ -48,6 +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[] = {
+ { 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 }
@@ -77,37 +84,85 @@ 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 ( xregcomp (®ex,
- "^([^ ]+) \\(([^)]*)\\)$",
- REG_EXTENDED) )
- INTERNAL_ERROR("compile time constant regex failed.");
+
+ /* These are out here to re-use the buffers with hex_decode */
+
+ char *message_id = NULL;
+ size_t message_id_size = 0;
+ char *tag = NULL;
+ size_t tag_size = 0;
+ notmuch_bool_t first_line = TRUE;
while ((line_len = getline (&line, &line_size, input)) != -1) {
regmatch_t match[3];
- char *message_id, *file_tags, *tag, *next;
+ char *file_tags, *next;
notmuch_message_t *message = NULL;
+
notmuch_status_t status;
notmuch_tags_t *db_tags;
char *db_tags_str;
chomp_newline (line);
+ if (first_line && input_format == DUMP_FORMAT_AUTO) {
+ char *p;
- rerr = xregexec (®ex, line, 3, match, 0);
- if (rerr == REG_NOMATCH)
- {
- fprintf (stderr, "Warning: Ignoring invalid input line: %s\n",
- line);
+ for (p = line; *p; p++) {
+ if (*p == '(')
+ input_format = DUMP_FORMAT_SUP;
+ }
+
+ if (input_format == DUMP_FORMAT_AUTO)
+ input_format = DUMP_FORMAT_NOTMUCH;
+
+ }
+
+ /* sup dump output is one line per message. We match a
+ * sequence of non-space characters for the message-id, then
+ * one or more spaces, then a list of space-separated tags as
+ * a sequence of characters within literal '(' and ')'. */
+ if (first_line && input_format == DUMP_FORMAT_SUP) {
+ if ( xregcomp (®ex,
+ "^([^ ]+) \\(([^)]*)\\)$",
+ REG_EXTENDED) )
+ INTERNAL_ERROR("compile time constant regex failed.");
+ }
+
+
+ /* Silently ignore blank lines */
+
+ if (line[0] == '\0') {
continue;
}
- message_id = xstrndup (line + match[1].rm_so,
- match[1].rm_eo - match[1].rm_so);
- file_tags = xstrndup (line + match[2].rm_so,
- match[2].rm_eo - match[2].rm_so);
+ if (input_format == DUMP_FORMAT_SUP) {
+ rerr = xregexec (®ex, line, 3, match, 0);
+ if (rerr == REG_NOMATCH)
+ {
+ fprintf (stderr, "Warning: Ignoring invalid input line: %s\n",
+ line);
+ continue;
+ }
+ message_id = talloc_strndup (notmuch, line + match[1].rm_so,
+ match[1].rm_eo - match[1].rm_so);
+ file_tags = talloc_strndup (notmuch, line + match[2].rm_so,
+ match[2].rm_eo - match[2].rm_so);
+ } else {
+ char *p = line;
+ char *raw_mid;
+
+ raw_mid = strsep (&p, " \t");
+
+ if (hex_decode (notmuch, raw_mid,
+ &message_id, &message_id_size) != HEX_SUCCESS)
+ return 1;
+
+ if (p)
+ file_tags = xstrdup (p);
+ else
+ file_tags = NULL;
+ }
+
+ first_line = FALSE;
status = notmuch_database_find_message (notmuch, message_id, &message);
if (status || message == NULL) {
@@ -153,7 +208,16 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
next = file_tags;
while (next) {
- tag = strsep (&next, " ");
+ char *raw_tag = strsep (&next, " ");
+
+ if (input_format == DUMP_FORMAT_NOTMUCH) {
+ if (hex_decode (notmuch, raw_tag,
+ &tag, &tag_size) != HEX_SUCCESS)
+ return 1;
+ } else {
+ tag = talloc_strdup (notmuch, raw_tag);
+ }
+
if (*tag == '\0')
continue;
status = notmuch_message_add_tag (message, tag);
@@ -175,11 +239,14 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
if (message)
notmuch_message_destroy (message);
message = NULL;
- free (message_id);
- free (file_tags);
+ if (input_format == DUMP_FORMAT_SUP) {
+ talloc_free (message_id);
+ talloc_free (file_tags);
+ }
}
- regfree (®ex);
+ if (input_format == DUMP_FORMAT_SUP)
+ regfree (®ex);
if (line)
free (line);
--
1.7.7.3
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