mirror of
https://github.com/djcb/mu.git
synced 2024-06-27 07:35:16 +02:00
72fdfec3eb
move out the QueryMatch
730 lines
22 KiB
C++
730 lines
22 KiB
C++
/*
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** Copyright (C) 2008-2020 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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**
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** This program is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by the
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** Free Software Foundation; either version 3, or (at your option) any
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** later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation,
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** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**
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*/
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#include "config.h"
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#include <array>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <signal.h>
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#include "mu-msg.hh"
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#include "mu-maildir.hh"
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#include "mu-query-match-deciders.hh"
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#include "mu-query.hh"
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#include "mu-bookmarks.hh"
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#include "mu-runtime.hh"
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#include "utils/mu-util.h"
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#include "utils/mu-str.h"
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#include "utils/mu-date.h"
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#include "mu-cmd.hh"
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using namespace Mu;
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struct OutputInfo{
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Xapian::docid docid{};
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bool is_first{};
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bool is_last{};
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Option<QueryMatch&> match_info;
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};
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constexpr auto FirstOutput{OutputInfo{0, true, false}};
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constexpr auto LastOutput{OutputInfo{0, false, true}};
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using OutputFunc = std::function<bool(MuMsg*, const OutputInfo&,
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const MuConfig*, GError**)>;
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static gboolean
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print_internal (const Query& query, const std::string& expr, gboolean xapian,
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gboolean warn, GError **err)
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{
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std::cout << query.parse(expr, xapian) << "\n";
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return TRUE;
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}
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/* returns MU_MSG_FIELD_ID_NONE if there is an error */
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static MuMsgFieldId
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sort_field_from_string (const char* fieldstr, GError **err)
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{
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MuMsgFieldId mfid;
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mfid = mu_msg_field_id_from_name (fieldstr, FALSE);
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/* not found? try a shortcut */
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if (mfid == MU_MSG_FIELD_ID_NONE &&
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strlen(fieldstr) == 1)
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mfid = mu_msg_field_id_from_shortcut(fieldstr[0],
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FALSE);
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if (mfid == MU_MSG_FIELD_ID_NONE)
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g_set_error (err, MU_ERROR_DOMAIN, MU_ERROR_IN_PARAMETERS,
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"not a valid sort field: '%s'\n", fieldstr);
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return mfid;
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}
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static Option<QueryResults>
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run_query (const Query& q, const std::string& expr, const MuConfig *opts, GError **err)
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{
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MuMsgFieldId sortid;
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sortid = MU_MSG_FIELD_ID_NONE;
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if (opts->sortfield) {
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sortid = sort_field_from_string (opts->sortfield, err);
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if (sortid == MU_MSG_FIELD_ID_NONE) /* error occurred? */
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return Nothing;
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}
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Mu::QueryFlags qflags{QueryFlags::None};
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if (opts->reverse)
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qflags |= QueryFlags::Descending;
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if (opts->skip_dups)
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qflags |= QueryFlags::SkipDuplicates;
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if (opts->include_related)
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qflags |= QueryFlags::IncludeRelated;
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if (opts->threads)
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qflags |= QueryFlags::Threading;
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return q.run(expr, sortid, qflags, opts->maxnum);
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}
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static gboolean
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exec_cmd (MuMsg *msg, const OutputInfo& info,
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const MuConfig *opts, GError **err)
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{
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gint status;
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char *cmdline, *escpath;
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gboolean rv;
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escpath = g_shell_quote (mu_msg_get_path (msg));
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cmdline = g_strdup_printf ("%s %s", opts->exec, escpath);
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rv = g_spawn_command_line_sync (cmdline, NULL, NULL, &status, err);
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g_free (cmdline);
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g_free (escpath);
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return rv;
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}
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static gchar*
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resolve_bookmark (const MuConfig *opts, GError **err)
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{
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MuBookmarks *bm;
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char* val;
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const gchar *bmfile;
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bmfile = mu_runtime_path (MU_RUNTIME_PATH_BOOKMARKS);
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bm = mu_bookmarks_new (bmfile);
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if (!bm) {
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g_set_error (err, MU_ERROR_DOMAIN, MU_ERROR_FILE_CANNOT_OPEN,
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"failed to open bookmarks file '%s'", bmfile);
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return FALSE;
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}
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val = (gchar*)mu_bookmarks_lookup (bm, opts->bookmark);
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if (!val)
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g_set_error (err, MU_ERROR_DOMAIN, MU_ERROR_NO_MATCHES,
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"bookmark '%s' not found", opts->bookmark);
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else
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val = g_strdup (val);
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mu_bookmarks_destroy (bm);
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return val;
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}
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static Option<std::string>
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get_query (const MuConfig *opts, GError **err)
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{
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gchar *query, *bookmarkval;
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/* params[0] is 'find', actual search params start with [1] */
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if (!opts->bookmark && !opts->params[1]) {
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g_set_error (err, MU_ERROR_DOMAIN, MU_ERROR_IN_PARAMETERS,
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"error in parameters");
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return Nothing;
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}
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bookmarkval = NULL;
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if (opts->bookmark) {
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bookmarkval = resolve_bookmark (opts, err);
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if (!bookmarkval)
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return Nothing;
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}
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query = g_strjoinv (" ", &opts->params[1]);
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if (bookmarkval) {
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gchar *tmp;
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tmp = g_strdup_printf ("%s %s", bookmarkval, query);
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g_free (query);
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query = tmp;
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}
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g_free (bookmarkval);
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std::string q{query};
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g_free(query);
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return q;
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}
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static Mu::Query
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get_query_obj (const Store& store, GError **err)
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{
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const auto count{store.size()};
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if (count == (unsigned)-1)
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throw Mu::Error(Error::Code::Store, "invalid store");
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if (count == 0)
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throw Mu::Error(Error::Code::Store, "store is empty");
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return Mu::Query{store};
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}
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static gboolean
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prepare_links (const MuConfig *opts, GError **err)
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{
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/* note, mu_maildir_mkdir simply ignores whatever part of the
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* mail dir already exists */
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if (!mu_maildir_mkdir (opts->linksdir, 0700, TRUE, err)) {
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mu_util_g_set_error (err, MU_ERROR_FILE_CANNOT_MKDIR,
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"error creating %s", opts->linksdir);
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return FALSE;
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}
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if (opts->clearlinks &&
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!mu_maildir_clear_links (opts->linksdir, err)) {
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mu_util_g_set_error (err, MU_ERROR_FILE,
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"error clearing links under %s",
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opts->linksdir);
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return FALSE;
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}
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return TRUE;
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}
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static bool
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output_link (MuMsg *msg, const OutputInfo& info,
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const MuConfig *opts, GError **err)
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{
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if (info.is_first && !prepare_links (opts, err))
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return FALSE;
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return mu_maildir_link (mu_msg_get_path (msg),
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opts->linksdir, err);
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}
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static void
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ansi_color_maybe (MuMsgFieldId mfid, gboolean color)
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{
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const char* ansi;
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if (!color)
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return; /* nothing to do */
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switch (mfid) {
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case MU_MSG_FIELD_ID_FROM:
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ansi = MU_COLOR_CYAN; break;
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case MU_MSG_FIELD_ID_TO:
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case MU_MSG_FIELD_ID_CC:
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case MU_MSG_FIELD_ID_BCC:
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ansi = MU_COLOR_BLUE; break;
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case MU_MSG_FIELD_ID_SUBJECT:
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ansi = MU_COLOR_GREEN; break;
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case MU_MSG_FIELD_ID_DATE:
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ansi = MU_COLOR_MAGENTA; break;
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default:
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if (mu_msg_field_type(mfid) == MU_MSG_FIELD_TYPE_STRING)
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ansi = MU_COLOR_YELLOW;
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else
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ansi = MU_COLOR_RED;
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}
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fputs (ansi, stdout);
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}
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static void
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ansi_reset_maybe (MuMsgFieldId mfid, gboolean color)
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{
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if (!color)
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return; /* nothing to do */
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fputs (MU_COLOR_DEFAULT, stdout);
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}
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static const char*
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field_string_list (MuMsg *msg, MuMsgFieldId mfid)
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{
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char *str;
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const GSList *lst;
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static char buf[80];
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lst = mu_msg_get_field_string_list (msg, mfid);
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if (!lst)
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return NULL;
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str = mu_str_from_list (lst, ',');
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if (str) {
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strncpy (buf, str, sizeof(buf)-1);
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buf[sizeof(buf)-1]='\0';
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g_free (str);
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return buf;
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}
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return NULL;
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}
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static const char*
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display_field (MuMsg *msg, MuMsgFieldId mfid)
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{
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gint64 val;
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switch (mu_msg_field_type(mfid)) {
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case MU_MSG_FIELD_TYPE_STRING: {
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const gchar *str;
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str = mu_msg_get_field_string (msg, mfid);
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return str ? str : "";
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}
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case MU_MSG_FIELD_TYPE_INT:
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if (mfid == MU_MSG_FIELD_ID_PRIO) {
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val = mu_msg_get_field_numeric (msg, mfid);
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return mu_msg_prio_name ((MuMsgPrio)val);
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} else if (mfid == MU_MSG_FIELD_ID_FLAGS) {
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val = mu_msg_get_field_numeric (msg, mfid);
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return mu_str_flags_s ((MuFlags)val);
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} else /* as string */
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return mu_msg_get_field_string (msg, mfid);
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case MU_MSG_FIELD_TYPE_TIME_T:
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val = mu_msg_get_field_numeric (msg, mfid);
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return mu_date_str_s ("%c", (time_t)val);
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case MU_MSG_FIELD_TYPE_BYTESIZE:
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val = mu_msg_get_field_numeric (msg, mfid);
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return mu_str_size_s ((unsigned)val);
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case MU_MSG_FIELD_TYPE_STRING_LIST: {
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const char *str;
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str = field_string_list (msg, mfid);
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return str ? str : "";
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}
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default:
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g_return_val_if_reached (NULL);
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}
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}
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static void
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print_summary (MuMsg *msg, const MuConfig *opts)
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{
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const char* body;
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char *summ;
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MuMsgOptions msgopts;
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msgopts = mu_config_get_msg_options (opts);
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body = mu_msg_get_body_text(msg, msgopts);
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if (body)
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summ = mu_str_summarize (body, (unsigned)opts->summary_len);
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else
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summ = NULL;
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g_print ("Summary: ");
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mu_util_fputs_encoded (summ ? summ : "<none>", stdout);
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g_print ("\n");
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g_free (summ);
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}
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static void
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thread_indent (const QueryMatch& info)
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{
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const auto is_root{any_of(info.flags & QueryMatch::Flags::Root)};
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const auto first_child{any_of(info.flags & QueryMatch::Flags::First)};
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const auto last_child{any_of(info.flags & QueryMatch::Flags::Last)};
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const auto empty_parent{any_of(info.flags & QueryMatch::Flags::Orphan)};
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const auto is_dup{any_of(info.flags & QueryMatch::Flags::Duplicate)};
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//const auto is_related{any_of(info.flags & QueryMatch::Flags::Related)};
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/* indent */
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for (auto i = info.thread_level; i > 1; --i)
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::fputs (" ", stdout);
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if (!is_root) {
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if (first_child)
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::fputs ("\\", stdout);
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else if (last_child)
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::fputs ("/", stdout);
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else
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::fputs (" ", stdout);
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::fputs (empty_parent ? "*> " : is_dup ? "=> " : "-> ", stdout);
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}
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}
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static void
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output_plain_fields (MuMsg *msg, const char *fields,
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gboolean color, gboolean threads)
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{
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const char* myfields;
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int nonempty;
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g_return_if_fail (fields);
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for (myfields = fields, nonempty = 0; *myfields; ++myfields) {
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MuMsgFieldId mfid;
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mfid = mu_msg_field_id_from_shortcut (*myfields, FALSE);
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if (mfid == MU_MSG_FIELD_ID_NONE ||
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(!mu_msg_field_xapian_value (mfid) &&
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!mu_msg_field_xapian_contact (mfid)))
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nonempty += printf ("%c", *myfields);
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else {
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ansi_color_maybe (mfid, color);
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nonempty += mu_util_fputs_encoded
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(display_field (msg, mfid), stdout);
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ansi_reset_maybe (mfid, color);
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}
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}
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if (nonempty)
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fputs ("\n", stdout);
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}
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static gboolean
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output_plain (MuMsg *msg, const OutputInfo& info, const MuConfig *opts, GError **err)
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{
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if (!msg)
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return true;
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/* we reuse the color (whatever that may be)
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* for message-priority for threads, too */
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ansi_color_maybe (MU_MSG_FIELD_ID_PRIO, !opts->nocolor);
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if (opts->threads && info.match_info)
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thread_indent (*info.match_info);
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output_plain_fields (msg, opts->fields, !opts->nocolor, opts->threads);
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if (opts->summary_len > 0)
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print_summary (msg, opts);
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return TRUE;
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}
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G_GNUC_UNUSED static std::string
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to_string (const Mu::Sexp& sexp, bool color, size_t level = 0)
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{
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Mu::MaybeAnsi col{color};
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using Color = Mu::MaybeAnsi::Color;
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// clang/libc++ don't allow constexpr here
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const std::array<Color, 6> rainbow = {
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Color::BrightBlue, Color::Green, Color::Yellow,
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Color::Magenta, Color::Cyan, Color::BrightGreen,
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};
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std::stringstream sstrm;
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switch (sexp.type()) {
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case Sexp::Type::List: {
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const auto bracecol{col.fg(rainbow[level % rainbow.size()])};
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sstrm << bracecol << "(";
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bool first{true};
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for (auto&& child : sexp.list()) {
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sstrm << (first ? "" : " ")
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<< to_string(child , color, level + 1);
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first = false;
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}
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sstrm << bracecol << ")";
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break;
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}
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case Sexp::Type::String:
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sstrm << col.fg(Color::BrightCyan) << Mu::quote(sexp.value())
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<< col.reset();
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break;
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case Sexp::Type::Number:
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sstrm << col.fg(Color::BrightMagenta) << sexp.value()
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<< col.reset();
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break;
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case Sexp::Type::Symbol:
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sstrm << (col.fg(sexp.value().at(0) == ':' ? Color::BrightGreen : Color::BrightBlue))
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<< sexp.value() << col.reset();
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break;
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default:
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throw std::logic_error ("invalid type");
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}
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return sstrm.str();
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}
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static bool
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output_sexp (MuMsg *msg, const OutputInfo& info, const MuConfig *opts, GError **err)
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{
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if (!msg)
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return true;
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fputs(msg_to_sexp(msg, 0, MU_MSG_OPTION_HEADERS_ONLY)
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.to_sexp_string().c_str(), stdout);
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fputs ("\n", stdout);
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return true;
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}
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static bool
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output_json (MuMsg *msg, const OutputInfo& info, const MuConfig *opts, GError **err)
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{
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if (info.is_first) {
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g_print ("[\n");
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return true;
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}
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if (info.is_last) {
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g_print("]\n");
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return true;
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}
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g_print("%s\n", msg_to_sexp(msg, info.docid, MU_MSG_OPTION_HEADERS_ONLY)
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.to_sexp_string().c_str());
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return true;
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}
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static void
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print_attr_xml (const char* elm, const char *str)
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{
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gchar *esc;
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if (mu_str_is_empty(str))
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return; /* empty: don't include */
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esc = g_markup_escape_text (str, -1);
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g_print ("\t\t<%s>%s</%s>\n", elm, esc, elm);
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g_free (esc);
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}
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static bool
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output_xml (MuMsg *msg, const OutputInfo& info, const MuConfig *opts, GError **err)
|
|
{
|
|
if (info.is_first) {
|
|
g_print ("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
|
|
g_print ("<messages>\n");
|
|
return true;
|
|
}
|
|
|
|
if (info.is_last) {
|
|
g_print ("</messages>\n");
|
|
return true;
|
|
}
|
|
|
|
g_print ("\t<message>\n");
|
|
print_attr_xml ("from", mu_msg_get_from (msg));
|
|
print_attr_xml ("to", mu_msg_get_to (msg));
|
|
print_attr_xml ("cc", mu_msg_get_cc (msg));
|
|
print_attr_xml ("subject", mu_msg_get_subject (msg));
|
|
g_print ("\t\t<date>%u</date>\n",
|
|
(unsigned)mu_msg_get_date (msg));
|
|
g_print ("\t\t<size>%u</size>\n", (unsigned)mu_msg_get_size (msg));
|
|
print_attr_xml ("msgid", mu_msg_get_msgid (msg));
|
|
print_attr_xml ("path", mu_msg_get_path (msg));
|
|
print_attr_xml ("maildir", mu_msg_get_maildir (msg));
|
|
g_print ("\t</message>\n");
|
|
|
|
return true;
|
|
}
|
|
|
|
static OutputFunc
|
|
get_output_func (const MuConfig *opts, GError **err)
|
|
{
|
|
switch (opts->format) {
|
|
case MU_CONFIG_FORMAT_LINKS: return output_link;
|
|
case MU_CONFIG_FORMAT_EXEC: return exec_cmd;
|
|
case MU_CONFIG_FORMAT_PLAIN: return output_plain;
|
|
case MU_CONFIG_FORMAT_XML: return output_xml;
|
|
case MU_CONFIG_FORMAT_SEXP: return output_sexp;
|
|
case MU_CONFIG_FORMAT_JSON: return output_json;
|
|
|
|
default:
|
|
g_return_val_if_reached (NULL);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
output_query_results (const QueryResults& qres, const MuConfig *opts, GError **err)
|
|
{
|
|
const auto output_func{get_output_func (opts, err)};
|
|
if (!output_func)
|
|
return false;
|
|
|
|
gboolean rv{true};
|
|
output_func (NULL, FirstOutput, NULL, NULL);
|
|
|
|
for (auto&& item: qres) {
|
|
|
|
auto msg{item.floating_msg()};
|
|
if (!msg)
|
|
continue;
|
|
|
|
if (opts->after != 0 && mu_msg_get_timestamp(msg) < opts->after)
|
|
continue;
|
|
|
|
rv = output_func (msg, {item.doc_id(), false, false, item.query_match()},
|
|
opts, err);
|
|
if (!rv)
|
|
break;
|
|
}
|
|
output_func (NULL, LastOutput, NULL, NULL);
|
|
|
|
return rv;
|
|
}
|
|
|
|
static gboolean
|
|
process_query (const Query& q, const std::string& expr, const MuConfig *opts, GError **err)
|
|
{
|
|
auto qres{run_query (q, expr, opts, err)};
|
|
if (!qres)
|
|
return FALSE;
|
|
|
|
if (qres->empty()) {
|
|
mu_util_g_set_error (err, MU_ERROR_NO_MATCHES,
|
|
"no matches for search expression");
|
|
return false;
|
|
}
|
|
|
|
return output_query_results (*qres, opts, err);
|
|
}
|
|
|
|
static gboolean
|
|
execute_find (const Store& store, const MuConfig *opts, GError **err)
|
|
{
|
|
auto q{get_query_obj (store, err)};
|
|
auto expr{get_query (opts, err)};
|
|
if (!expr)
|
|
return FALSE;
|
|
|
|
if (opts->format == MU_CONFIG_FORMAT_XQUERY)
|
|
return print_internal (q, *expr, TRUE, FALSE, err);
|
|
else if (opts->format == MU_CONFIG_FORMAT_MQUERY)
|
|
return print_internal (q, *expr, FALSE,
|
|
opts->verbose, err);
|
|
else
|
|
return process_query (q, *expr, opts, err);
|
|
}
|
|
|
|
static gboolean
|
|
format_params_valid (const MuConfig *opts, GError **err)
|
|
{
|
|
switch (opts->format) {
|
|
case MU_CONFIG_FORMAT_EXEC:
|
|
break;
|
|
case MU_CONFIG_FORMAT_PLAIN:
|
|
case MU_CONFIG_FORMAT_SEXP:
|
|
case MU_CONFIG_FORMAT_JSON:
|
|
case MU_CONFIG_FORMAT_LINKS:
|
|
case MU_CONFIG_FORMAT_XML:
|
|
case MU_CONFIG_FORMAT_XQUERY:
|
|
case MU_CONFIG_FORMAT_MQUERY:
|
|
if (opts->exec) {
|
|
mu_util_g_set_error
|
|
(err, MU_ERROR_IN_PARAMETERS,
|
|
"--exec and --format cannot be combined");
|
|
return FALSE;
|
|
}
|
|
break;
|
|
default: mu_util_g_set_error (err, MU_ERROR_IN_PARAMETERS,
|
|
"invalid output format %s",
|
|
opts->formatstr ? opts->formatstr : "<none>");
|
|
return FALSE;
|
|
}
|
|
|
|
if (opts->format == MU_CONFIG_FORMAT_LINKS && !opts->linksdir) {
|
|
mu_util_g_set_error (err, MU_ERROR_IN_PARAMETERS,
|
|
"missing --linksdir argument");
|
|
return FALSE;
|
|
}
|
|
|
|
if (opts->linksdir && opts->format != MU_CONFIG_FORMAT_LINKS) {
|
|
mu_util_g_set_error (err, MU_ERROR_IN_PARAMETERS,
|
|
"--linksdir is only valid with --format=links");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
query_params_valid (const MuConfig *opts, GError **err)
|
|
{
|
|
const gchar *xpath;
|
|
|
|
if (!opts->params[1]) {
|
|
mu_util_g_set_error (err, MU_ERROR_IN_PARAMETERS,
|
|
"missing query");
|
|
return FALSE;
|
|
}
|
|
|
|
xpath = mu_runtime_path (MU_RUNTIME_PATH_XAPIANDB);
|
|
if (mu_util_check_dir (xpath, TRUE, FALSE))
|
|
return TRUE;
|
|
|
|
mu_util_g_set_error (err, MU_ERROR_FILE_CANNOT_READ,
|
|
"'%s' is not a readable Xapian directory",
|
|
xpath);
|
|
return FALSE;
|
|
}
|
|
|
|
MuError
|
|
Mu::mu_cmd_find (const Store& store, const MuConfig *opts, GError **err)
|
|
{
|
|
g_return_val_if_fail (opts, MU_ERROR_INTERNAL);
|
|
g_return_val_if_fail (opts->cmd == MU_CONFIG_CMD_FIND,
|
|
MU_ERROR_INTERNAL);
|
|
|
|
MuConfig myopts{*opts};
|
|
|
|
if (myopts.exec)
|
|
myopts.format = MU_CONFIG_FORMAT_EXEC; /* pseudo format */
|
|
|
|
if (!query_params_valid (&myopts, err) ||
|
|
!format_params_valid(&myopts, err))
|
|
return MU_G_ERROR_CODE (err);
|
|
|
|
if (!execute_find (store, &myopts, err))
|
|
return MU_G_ERROR_CODE(err);
|
|
else
|
|
return MU_OK;
|
|
}
|