[Patch v3b 1/9] notmuch-dump: add --format=(batch-tag|sup)
Jani Nikula
jani at nikula.org
Fri Dec 7 14:21:06 PST 2012
LGTM.
On Fri, 07 Dec 2012, david at tethera.net wrote:
> From: David Bremner <bremner at debian.org>
>
> sup is the old format, and remains the default, at least until
> restore is converted to parse this format.
>
> Each line of the batch-tag format is modelled on the syntax of notmuch tag:
> - "notmuch tag" is omitted from the front of the line
> - The dump format only uses query strings of a single message-id.
> - Each space seperated tag/message-id is 'hex-encoded' to remove
> trouble-making characters.
> - It is permitted (and will be useful) for there to be no tags before
> the query.
>
> In particular this format won't have the same problem with e.g. spaces
> in message-ids or tags; they will be round-trip-able.
> ---
> dump-restore-private.h | 13 +++++++++++++
> notmuch-dump.c | 48 ++++++++++++++++++++++++++++++++++++++++++------
> 2 files changed, 55 insertions(+), 6 deletions(-)
> create mode 100644 dump-restore-private.h
>
> diff --git a/dump-restore-private.h b/dump-restore-private.h
> new file mode 100644
> index 0000000..896a004
> --- /dev/null
> +++ b/dump-restore-private.h
> @@ -0,0 +1,13 @@
> +#ifndef DUMP_RESTORE_PRIVATE_H
> +#define DUMP_RESTORE_PRIVATE_H
> +
> +#include "hex-escape.h"
> +#include "command-line-arguments.h"
> +
> +typedef enum dump_formats {
> + DUMP_FORMAT_AUTO,
> + DUMP_FORMAT_BATCH_TAG,
> + DUMP_FORMAT_SUP
> +} dump_format_t;
> +
> +#endif
> diff --git a/notmuch-dump.c b/notmuch-dump.c
> index 88f598a..d2dad40 100644
> --- a/notmuch-dump.c
> +++ b/notmuch-dump.c
> @@ -19,6 +19,7 @@
> */
>
> #include "notmuch-client.h"
> +#include "dump-restore-private.h"
>
> int
> notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
> @@ -43,7 +44,13 @@ notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
> char *output_file_name = NULL;
> int opt_index;
>
> + int output_format = DUMP_FORMAT_SUP;
> +
> notmuch_opt_desc_t options[] = {
> + { NOTMUCH_OPT_KEYWORD, &output_format, "format", 'f',
> + (notmuch_keyword_t []){ { "sup", DUMP_FORMAT_SUP },
> + { "batch-tag", DUMP_FORMAT_BATCH_TAG },
> + { 0, 0 } } },
> { NOTMUCH_OPT_STRING, &output_file_name, "output", 'o', 0 },
> { 0, 0, 0, 0, 0 }
> };
> @@ -83,27 +90,56 @@ notmuch_dump_command (unused (void *ctx), int argc, char *argv[])
> */
> notmuch_query_set_sort (query, NOTMUCH_SORT_UNSORTED);
>
> + char *buffer = NULL;
> + size_t buffer_size = 0;
> +
> for (messages = notmuch_query_search_messages (query);
> notmuch_messages_valid (messages);
> notmuch_messages_move_to_next (messages)) {
> int first = 1;
> + const char *message_id;
> +
> message = notmuch_messages_get (messages);
> + message_id = notmuch_message_get_message_id (message);
>
> - fprintf (output,
> - "%s (", notmuch_message_get_message_id (message));
> + if (output_format == DUMP_FORMAT_SUP) {
> + fprintf (output, "%s (", message_id);
> + }
>
> for (tags = notmuch_message_get_tags (message);
> notmuch_tags_valid (tags);
> notmuch_tags_move_to_next (tags)) {
> - if (! first)
> - fprintf (output, " ");
> + const char *tag_str = notmuch_tags_get (tags);
>
> - fprintf (output, "%s", notmuch_tags_get (tags));
> + if (! first)
> + fputs (" ", output);
>
> first = 0;
> +
> + if (output_format == DUMP_FORMAT_SUP) {
> + fputs (tag_str, output);
> + } else {
> + if (hex_encode (notmuch, tag_str,
> + &buffer, &buffer_size) != HEX_SUCCESS) {
> + fprintf (stderr, "Error: failed to hex-encode tag %s\n",
> + tag_str);
> + return 1;
> + }
> + fprintf (output, "+%s", buffer);
> + }
> }
>
> - fprintf (output, ")\n");
> + if (output_format == DUMP_FORMAT_SUP) {
> + fputs (")\n", output);
> + } else {
> + if (hex_encode (notmuch, message_id,
> + &buffer, &buffer_size) != HEX_SUCCESS) {
> + fprintf (stderr, "Error: failed to hex-encode msg-id %s\n",
> + message_id);
> + return 1;
> + }
> + fprintf (output, " -- id:%s\n", buffer);
> + }
>
> notmuch_message_destroy (message);
> }
> --
> 1.7.10.4
>
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