[PATCH v3 4/5] dump/restore: Use Xapian queries for batch-tag format
Austin Clements
amdragon at MIT.EDU
Fri Dec 28 10:26:28 PST 2012
This switches the new batch-tag format away from using a home-grown
hex-encoding scheme for message IDs in the dump to simply using Xapian
queries with Xapian quoting syntax.
This has a variety of advantages beyond presenting a cleaner and more
consistent interface. Foremost is that it will dramatically simplify
the quoting for batch tagging, which shares the same input format.
While the hex-encoding is no better or worse for the simple ID queries
used by dump/restore, it becomes onerous for general-purpose queries
used in batch tagging. It also better handles strange cases like
"id:foo and bar", since this is no longer syntactically valid.
---
notmuch-dump.c | 9 +++++----
notmuch-restore.c | 22 ++++++++++------------
tag-util.c | 6 ------
test/dump-restore | 14 ++++++++------
4 files changed, 23 insertions(+), 28 deletions(-)
diff --git a/notmuch-dump.c b/notmuch-dump.c
index 29d79da..bf01a39 100644
--- a/notmuch-dump.c
+++ b/notmuch-dump.c
@@ -20,6 +20,7 @@
#include "notmuch-client.h"
#include "dump-restore-private.h"
+#include "string-util.h"
int
notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
@@ -141,13 +142,13 @@ notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
fprintf (stderr, "Error: cannot dump message id containing line break: %s\n", message_id);
return 1;
}
- if (hex_encode (notmuch, message_id,
- &buffer, &buffer_size) != HEX_SUCCESS) {
- fprintf (stderr, "Error: failed to hex-encode msg-id %s\n",
+ if (make_boolean_term (notmuch, "id", message_id,
+ &buffer, &buffer_size)) {
+ fprintf (stderr, "Error: failed to quote message id %s\n",
message_id);
return 1;
}
- fprintf (output, " -- id:%s\n", buffer);
+ fprintf (output, " -- %s\n", buffer);
}
notmuch_message_destroy (message);
diff --git a/notmuch-restore.c b/notmuch-restore.c
index 9ed9b51..77a4c27 100644
--- a/notmuch-restore.c
+++ b/notmuch-restore.c
@@ -207,7 +207,7 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
INTERNAL_ERROR ("compile time constant regex failed.");
do {
- char *query_string;
+ char *query_string, *prefix, *term;
if (line_ctx != NULL)
talloc_free (line_ctx);
@@ -220,19 +220,17 @@ notmuch_restore_command (unused (void *ctx), int argc, char *argv[])
&query_string, tag_ops);
if (ret == 0) {
- if (strncmp ("id:", query_string, 3) != 0) {
- fprintf (stderr, "Warning: unsupported query: %s\n", query_string);
+ ret = parse_boolean_term (line_ctx, query_string,
+ &prefix, &term);
+ if (ret) {
+ fprintf (stderr, "Warning: cannot parse query: %s\n",
+ query_string);
+ continue;
+ } else if (strcmp ("id", prefix) != 0) {
+ fprintf (stderr, "Warning: not an id query: %s\n", query_string);
continue;
}
- /* delete id: from front of string; tag_message
- * expects a raw message-id.
- *
- * XXX: Note that query string id:foo and bar will be
- * interpreted as a message id "foo and bar". This
- * should eventually be fixed to give a better error
- * message.
- */
- query_string = query_string + 3;
+ query_string = term;
}
}
diff --git a/tag-util.c b/tag-util.c
index 705b7ba..e4e5dda 100644
--- a/tag-util.c
+++ b/tag-util.c
@@ -124,12 +124,6 @@ parse_tag_line (void *ctx, char *line,
}
/* tok now points to the query string */
- if (hex_decode_inplace (tok) != HEX_SUCCESS) {
- ret = line_error (TAG_PARSE_INVALID, line_for_error,
- "hex decoding of query %s failed", tok);
- goto DONE;
- }
-
*query_string = tok;
DONE:
diff --git a/test/dump-restore b/test/dump-restore
index 6a989b6..f9ae5b3 100755
--- a/test/dump-restore
+++ b/test/dump-restore
@@ -195,23 +195,25 @@ a
# the previous line was blank; also no yelling please
+%zz -- id:whatever
-+e +f id:%yy
++e +f id:"
++e +f tag:abc
# the next non-comment line should report an an empty tag error for
# batch tagging, but not for restore
+ +e -- id:20091117232137.GA7669 at griffis1.net
-# highlight the sketchy id parsing; this should be last
-+g -- id:foo and bar
+# valid id, but warning about missing message
++e id:missing_message_id
EOF
cat <<EOF > EXPECTED
-Warning: unsupported query: a
+Warning: cannot parse query: a
Warning: no query string [+0]
Warning: no query string [+a +b]
Warning: missing query string [+a +b ]
Warning: no query string after -- [+c +d --]
Warning: hex decoding of tag %zz failed [+%zz -- id:whatever]
-Warning: hex decoding of query id:%yy failed [+e +f id:%yy]
-Warning: cannot apply tags to missing message: foo and bar
+Warning: cannot parse query: id:"
+Warning: not an id query: tag:abc
+Warning: cannot apply tags to missing message: missing_message_id
EOF
test_expect_equal_file EXPECTED OUTPUT
--
1.7.10.4
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