mirror of
https://github.com/djcb/mu.git
synced 2024-06-30 08:01:07 +02:00
339 lines
7.6 KiB
C
339 lines
7.6 KiB
C
|
/*
|
||
|
** Copyright (C) 2010 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
|
||
|
**
|
||
|
** This program is free software; you can redistribute it and/or modify it
|
||
|
** under the terms of the GNU General Public License as published by the
|
||
|
** Free Software Foundation; either version 3, or (at your option) any
|
||
|
** later version.
|
||
|
**
|
||
|
** This program is distributed in the hope that it will be useful,
|
||
|
** but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
** GNU General Public License for more details.
|
||
|
**
|
||
|
** You should have received a copy of the GNU General Public License
|
||
|
** along with this program; if not, write to the Free Software Foundation,
|
||
|
** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
**
|
||
|
*/
|
||
|
|
||
|
#include "config.h"
|
||
|
|
||
|
#include <unistd.h>
|
||
|
#include <stdio.h>
|
||
|
#include <string.h>
|
||
|
#include <errno.h>
|
||
|
#include <stdlib.h>
|
||
|
#include <signal.h>
|
||
|
|
||
|
#include "mu-msg-gmime.h"
|
||
|
#include "mu-maildir.h"
|
||
|
#include "mu-index.h"
|
||
|
#include "mu-query-xapian.h"
|
||
|
#include "mu-msg-iter-xapian.h"
|
||
|
#include "mu-msg-str.h"
|
||
|
|
||
|
#include "mu-util.h"
|
||
|
#include "mu-util-xapian.h"
|
||
|
|
||
|
#include "mu-cmd-find.h"
|
||
|
|
||
|
|
||
|
static void
|
||
|
update_warning (void)
|
||
|
{
|
||
|
g_warning ("the database needs to be updated to version %s",
|
||
|
MU_XAPIAN_DB_VERSION);
|
||
|
g_message ("please run 'mu index --empty' (see the manpage)");
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
static gboolean
|
||
|
print_query (MuQueryXapian *xapian, const gchar *query)
|
||
|
{
|
||
|
char *querystr;
|
||
|
|
||
|
MU_WRITE_LOG ("query: '%s' (xquery)", query);
|
||
|
|
||
|
querystr = mu_query_xapian_as_string (xapian, query);
|
||
|
g_print ("%s\n", querystr);
|
||
|
g_free (querystr);
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
|
||
|
static const gchar*
|
||
|
display_field (MuMsgIterXapian *iter, const MuMsgField* field)
|
||
|
{
|
||
|
gint64 val;
|
||
|
|
||
|
switch (mu_msg_field_type(field)) {
|
||
|
case MU_MSG_FIELD_TYPE_STRING:
|
||
|
return mu_msg_iter_xapian_get_field (iter, field);
|
||
|
|
||
|
case MU_MSG_FIELD_TYPE_INT:
|
||
|
|
||
|
if (mu_msg_field_id(field) == MU_MSG_FIELD_ID_PRIORITY) {
|
||
|
val = mu_msg_iter_xapian_get_field_numeric (iter, field);
|
||
|
return mu_msg_str_prio ((MuMsgPriority)val);
|
||
|
}
|
||
|
|
||
|
if (mu_msg_field_id(field) == MU_MSG_FIELD_ID_FLAGS) {
|
||
|
val = mu_msg_iter_xapian_get_field_numeric (iter, field);
|
||
|
return mu_msg_str_flags_s ((MuMsgPriority)val);
|
||
|
}
|
||
|
|
||
|
return mu_msg_iter_xapian_get_field (iter, field); /* as string */
|
||
|
|
||
|
case MU_MSG_FIELD_TYPE_TIME_T:
|
||
|
val = mu_msg_iter_xapian_get_field_numeric (iter, field);
|
||
|
return mu_msg_str_date_s ((time_t)val);
|
||
|
|
||
|
case MU_MSG_FIELD_TYPE_BYTESIZE:
|
||
|
val = mu_msg_iter_xapian_get_field_numeric (iter, field);
|
||
|
return mu_msg_str_size_s ((time_t)val);
|
||
|
default:
|
||
|
g_return_val_if_reached (NULL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
/* returns NULL if there is an error */
|
||
|
const MuMsgField*
|
||
|
sort_field_from_string (const char* fieldstr)
|
||
|
{
|
||
|
const MuMsgField *field;
|
||
|
|
||
|
field = mu_msg_field_from_name (fieldstr);
|
||
|
|
||
|
if (!field && strlen(fieldstr) == 1)
|
||
|
field = mu_msg_field_from_shortcut(fieldstr[0]);
|
||
|
|
||
|
if (!field)
|
||
|
g_printerr ("not a valid sort field: '%s'\n",
|
||
|
fieldstr);
|
||
|
return field;
|
||
|
}
|
||
|
|
||
|
static gboolean
|
||
|
print_rows (MuQueryXapian *xapian, const gchar *query, MuConfigOptions *opts)
|
||
|
{
|
||
|
MuMsgIterXapian *iter;
|
||
|
const MuMsgField *sortfield;
|
||
|
|
||
|
MU_WRITE_LOG ("query: '%s' (iters)", query);
|
||
|
|
||
|
sortfield = NULL;
|
||
|
if (opts->sortfield) {
|
||
|
sortfield = sort_field_from_string (opts->sortfield);
|
||
|
if (!sortfield) /* error occured? */
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
iter = mu_query_xapian_run (xapian, query, sortfield,
|
||
|
!opts->descending,
|
||
|
0);
|
||
|
if (!iter) {
|
||
|
g_printerr ("error: running query failed\n");
|
||
|
return FALSE;
|
||
|
} else if (mu_msg_iter_xapian_is_done (iter)) {
|
||
|
g_printerr ("No matches found\n");
|
||
|
mu_msg_iter_xapian_destroy (iter);
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
/* iterate over the found iters */
|
||
|
do {
|
||
|
const char* fields = opts->fields;
|
||
|
int printlen = 0;
|
||
|
|
||
|
while (*fields) {
|
||
|
|
||
|
const MuMsgField* field;
|
||
|
field = mu_msg_field_from_shortcut (*fields);
|
||
|
if (!field ||
|
||
|
!mu_msg_field_is_xapian_enabled (field))
|
||
|
printlen += printf ("%c", *fields);
|
||
|
else
|
||
|
printlen +=
|
||
|
printf ("%s",
|
||
|
display_field(iter, field));
|
||
|
++fields;
|
||
|
}
|
||
|
|
||
|
if (printlen > 0)
|
||
|
printf ("\n");
|
||
|
|
||
|
mu_msg_iter_xapian_next (iter);
|
||
|
|
||
|
} while (!mu_msg_iter_xapian_is_done (iter));
|
||
|
|
||
|
mu_msg_iter_xapian_destroy (iter);
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
|
||
|
static gboolean
|
||
|
do_output_text (MuQueryXapian *xapian, MuConfigOptions* opts,
|
||
|
const gchar **params)
|
||
|
{
|
||
|
gchar *query;
|
||
|
gboolean retval = TRUE;
|
||
|
|
||
|
query = mu_query_xapian_combine (params, FALSE);
|
||
|
|
||
|
/* if xquery is set, we print the xapian query instead of the
|
||
|
* output; this is for debugging purposes */
|
||
|
if (opts->xquery)
|
||
|
retval = print_query (xapian, query);
|
||
|
else
|
||
|
retval = print_rows (xapian, query, opts);
|
||
|
|
||
|
g_free (query);
|
||
|
|
||
|
return retval;
|
||
|
}
|
||
|
|
||
|
|
||
|
/* create a linksdir if it not exist yet; if it already existed,
|
||
|
* remove old links if opts->clearlinks was specified */
|
||
|
static gboolean
|
||
|
create_or_clear_linksdir_maybe (MuConfigOptions* opts)
|
||
|
{
|
||
|
if (access (opts->linksdir, F_OK) != 0) {
|
||
|
if (!mu_maildir_mkmdir (opts->linksdir, 0700, TRUE))
|
||
|
return FALSE;
|
||
|
|
||
|
} else if (opts->clearlinks)
|
||
|
mu_maildir_clear_links (opts->linksdir);
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
static gboolean
|
||
|
do_output_links (MuQueryXapian *xapian, MuConfigOptions* opts,
|
||
|
const gchar **params)
|
||
|
{
|
||
|
gchar *query;
|
||
|
gboolean retval = TRUE;
|
||
|
MuMsgIterXapian *iter;
|
||
|
const MuMsgField *pathfield;
|
||
|
|
||
|
if (!create_or_clear_linksdir_maybe (opts))
|
||
|
return FALSE;
|
||
|
|
||
|
query = mu_query_xapian_combine (params, FALSE);
|
||
|
|
||
|
MU_WRITE_LOG ("query: '%s' (links)", query);
|
||
|
iter = mu_query_xapian_run (xapian, query, NULL, FALSE, 0);
|
||
|
if (!iter) {
|
||
|
g_printerr ("error: running query failed\n");
|
||
|
return FALSE;
|
||
|
} else if (mu_msg_iter_xapian_is_done (iter)) {
|
||
|
g_printerr ("No matches found\n");
|
||
|
mu_msg_iter_xapian_destroy (iter);
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
pathfield = mu_msg_field_from_id (MU_MSG_FIELD_ID_PATH);
|
||
|
|
||
|
/* iterate over the found iters */
|
||
|
for (; !mu_msg_iter_xapian_is_done (iter);
|
||
|
mu_msg_iter_xapian_next (iter)) {
|
||
|
|
||
|
const char *path;
|
||
|
|
||
|
path = mu_msg_iter_xapian_get_field (iter, pathfield);
|
||
|
if (!path)
|
||
|
continue;
|
||
|
|
||
|
/* this might happen if the database is not up-to-date */
|
||
|
if (access (path, R_OK) != 0) {
|
||
|
g_warning ("Cannot read source message %s: %s",
|
||
|
path, strerror (errno));
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
if (!mu_maildir_link (path, opts->linksdir))
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
mu_msg_iter_xapian_destroy (iter);
|
||
|
g_free (query);
|
||
|
|
||
|
return retval;
|
||
|
}
|
||
|
|
||
|
|
||
|
static gboolean
|
||
|
query_params_valid (MuConfigOptions *opts)
|
||
|
{
|
||
|
if (opts->linksdir)
|
||
|
if (opts->xquery) {
|
||
|
g_warning ("Invalid option for '--linksdir'");
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (!opts->params[0] || !opts->params[1]) {
|
||
|
g_warning ("Missing search expression");
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (mu_util_check_dir (opts->xpath, TRUE, FALSE))
|
||
|
return TRUE;
|
||
|
|
||
|
g_warning ("%s is not a readable Xapian directory", opts->xpath);
|
||
|
g_message ("Did you run 'mu index'?");
|
||
|
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
gboolean
|
||
|
mu_cmd_find (MuConfigOptions *opts)
|
||
|
{
|
||
|
MuQueryXapian *xapian;
|
||
|
gboolean rv;
|
||
|
const gchar **params;
|
||
|
|
||
|
g_return_val_if_fail (opts, FALSE);
|
||
|
|
||
|
if (!query_params_valid (opts))
|
||
|
return FALSE;
|
||
|
|
||
|
if (mu_util_xapian_db_is_empty (opts->xpath)) {
|
||
|
g_warning ("The database is empty; "
|
||
|
"use 'mu index' to add some messages");
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (!mu_util_xapian_db_version_up_to_date (opts->xpath)) {
|
||
|
update_warning ();
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
/* first param is 'query', search params are after that */
|
||
|
params = (const gchar**)&opts->params[1];
|
||
|
|
||
|
mu_msg_gmime_init();
|
||
|
|
||
|
xapian = mu_query_xapian_new (opts->xpath);
|
||
|
if (!xapian) {
|
||
|
g_warning ("Failed to create Xapian query");
|
||
|
mu_msg_gmime_uninit ();
|
||
|
return FALSE;
|
||
|
}
|
||
|
|
||
|
if (opts->linksdir)
|
||
|
rv = do_output_links (xapian, opts, params);
|
||
|
else
|
||
|
rv = do_output_text (xapian, opts, params);
|
||
|
|
||
|
mu_query_xapian_destroy (xapian);
|
||
|
mu_msg_gmime_uninit();
|
||
|
|
||
|
return rv;
|
||
|
}
|