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mu: add '--lazy-check' option for indexing

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Add an option --lazy-check to ignore any directories that don't have
their ctime changed since the last indexing operation.

There are a few corner-cases (such as editing a message outside mu's
control) where this might miss a change, but apart from that, makes
indexing in for a maildir (and its sub-maildirs) almost a no-op if there
were no changes.
This commit is contained in:
djcb
2016-07-23 19:18:09 +03:00
parent 2a83b02ce2
commit 9477071e63
7 changed files with 115 additions and 72 deletions
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25
mu/mu-cmd-index.c
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@ -1,7 +1,7 @@
/* -*-mode: c; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-*/
/*
** Copyright (C) 2008-2013 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
** Copyright (C) 2008-2016 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
@ -49,24 +49,24 @@ sig_handler (int sig)
"press again to kill immediately");
}
MU_CAUGHT_SIGNAL = TRUE;
MU_CAUGHT_SIGNAL = TRUE;
}
static void
install_sig_handler (void)
{
struct sigaction action;
int i, sigs[] = { SIGINT, SIGHUP, SIGTERM };
struct sigaction action;
int i, sigs[] = { SIGINT, SIGHUP, SIGTERM };
MU_CAUGHT_SIGNAL = FALSE;
MU_CAUGHT_SIGNAL = FALSE;
action.sa_handler = sig_handler;
sigemptyset(&action.sa_mask);
action.sa_flags = SA_RESETHAND;
action.sa_handler = sig_handler;
sigemptyset(&action.sa_mask);
action.sa_flags = SA_RESETHAND;
for (i = 0; i != G_N_ELEMENTS(sigs); ++i)
if (sigaction (sigs[i], &action, NULL) != 0)
g_critical ("set sigaction for %d failed: %s",
for (i = 0; i != G_N_ELEMENTS(sigs); ++i)
if (sigaction (sigs[i], &action, NULL) != 0)
g_critical ("set sigaction for %d failed: %s",
sigs[i], strerror (errno));;
}
@ -319,7 +319,8 @@ cmd_index (MuIndex *midx, MuConfig *opts, MuIndexStats *stats, GError **err)
newline_before_on();
rv = mu_index_run (midx, opts->maildir, opts->rebuild, stats,
rv = mu_index_run (midx, opts->maildir, opts->rebuild,
opts->lazycheck, stats,
show_progress ?
(MuIndexMsgCallback)index_msg_cb :
(MuIndexMsgCallback)index_msg_silent_cb,

4
mu/mu-config.c
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@ -148,6 +148,8 @@ config_options_group_index (void)
"top of the maildir", "<maildir>"},
{"rebuild", 0, 0, G_OPTION_ARG_NONE, &MU_CONFIG.rebuild,
"rebuild the database from scratch (false)", NULL},
{"lazy-check", 0, 0, G_OPTION_ARG_NONE, &MU_CONFIG.lazycheck,
"only check dir-timestamps (false)", NULL},
{"my-address", 0, 0, G_OPTION_ARG_STRING_ARRAY,
&MU_CONFIG.my_addresses,
"my e-mail address (regexp); can be used multiple times",
@ -307,7 +309,7 @@ config_options_group_script (void)
GOptionEntry entries[] = {
{G_OPTION_REMAINING, 0,0, G_OPTION_ARG_STRING_ARRAY,
&MU_CONFIG.params, "script parameters", NULL},
{NULL, 0, 0, 0, NULL, NULL, NULL}
{NULL, 0, 0, 0, NULL, NULL, NULL}
};
og = g_option_group_new("script", "Options for the 'script' command",

2
mu/mu-config.h
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@ -112,6 +112,8 @@ struct _MuConfig {
gboolean rebuild; /* empty the database before indexing */
gboolean autoupgrade; /* automatically upgrade db
* when needed */
gboolean lazycheck; /* don't check dirs with up-to-date
* timestamps */
int xbatchsize; /* batchsize for xapian
* commits, or 0 for
* default */