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profanity/src/log.c

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/*
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* log.c
*
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* Copyright (C) 2012 - 2014 James Booth <boothj5@gmail.com>
*
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* This file is part of Profanity.
*
* Profanity 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 of the License, or
* (at your option) any later version.
*
* Profanity 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 Profanity. If not, see <http://www.gnu.org/licenses/>.
*
*/
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
#include "glib.h"
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#include "log.h"
#include "common.h"
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#include "config/preferences.h"
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#define PROF "prof"
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static FILE *logp;
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GString *mainlogfile;
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static GTimeZone *tz;
static GDateTime *dt;
static log_level_t level_filter;
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static GHashTable *logs;
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static GHashTable *groupchat_logs;
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static GDateTime *session_started;
struct dated_chat_log {
gchar *filename;
GDateTime *date;
};
static gboolean _log_roll_needed(struct dated_chat_log *dated_log);
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static struct dated_chat_log * _create_log(char *other, const char * const login);
static struct dated_chat_log * _create_groupchat_log(char *room, const char * const login);
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static void _free_chat_log(struct dated_chat_log *dated_log);
static gboolean _key_equals(void *key1, void *key2);
static char * _get_log_filename(const char * const other, const char * const login,
GDateTime *dt, gboolean create);
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static char * _get_groupchat_log_filename(const char * const room,
const char * const login, GDateTime *dt, gboolean create);
static gchar * _get_chatlog_dir(void);
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static gchar * _get_main_log_file(void);
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static void _rotate_log_file(void);
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static char* _log_string_from_level(log_level_t level);
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void
log_debug(const char * const msg, ...)
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{
va_list arg;
va_start(arg, msg);
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GString *fmt_msg = g_string_new(NULL);
g_string_vprintf(fmt_msg, msg, arg);
log_msg(PROF_LEVEL_DEBUG, PROF, fmt_msg->str);
g_string_free(fmt_msg, TRUE);
va_end(arg);
}
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void
log_info(const char * const msg, ...)
{
va_list arg;
va_start(arg, msg);
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GString *fmt_msg = g_string_new(NULL);
g_string_vprintf(fmt_msg, msg, arg);
log_msg(PROF_LEVEL_INFO, PROF, fmt_msg->str);
g_string_free(fmt_msg, TRUE);
va_end(arg);
}
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void
log_warning(const char * const msg, ...)
{
va_list arg;
va_start(arg, msg);
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GString *fmt_msg = g_string_new(NULL);
g_string_vprintf(fmt_msg, msg, arg);
log_msg(PROF_LEVEL_WARN, PROF, fmt_msg->str);
g_string_free(fmt_msg, TRUE);
va_end(arg);
}
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void
log_error(const char * const msg, ...)
{
va_list arg;
va_start(arg, msg);
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GString *fmt_msg = g_string_new(NULL);
g_string_vprintf(fmt_msg, msg, arg);
log_msg(PROF_LEVEL_ERROR, PROF, fmt_msg->str);
g_string_free(fmt_msg, TRUE);
va_end(arg);
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}
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void
log_init(log_level_t filter)
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{
level_filter = filter;
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tz = g_time_zone_new_local();
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gchar *log_file = _get_main_log_file();
logp = fopen(log_file, "a");
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mainlogfile = g_string_new(log_file);
free(log_file);
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}
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void
log_reinit(void)
{
log_close();
log_init(level_filter);
}
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char *
get_log_file_location(void)
{
return mainlogfile->str;
}
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log_level_t
log_get_filter(void)
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{
return level_filter;
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}
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void
log_close(void)
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{
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g_string_free(mainlogfile, TRUE);
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g_time_zone_unref(tz);
if (logp != NULL) {
fclose(logp);
}
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}
void
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log_msg(log_level_t level, const char * const area, const char * const msg)
{
if (level >= level_filter && logp != NULL) {
dt = g_date_time_new_now(tz);
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char *level_str = _log_string_from_level(level);
gchar *date_fmt = g_date_time_format(dt, "%d/%m/%Y %H:%M:%S");
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fprintf(logp, "%s: %s: %s: %s\n", date_fmt, area, level_str, msg);
g_date_time_unref(dt);
fflush(logp);
g_free(date_fmt);
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if (prefs_get_boolean(PREF_LOG_ROTATE)) {
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long result = ftell(logp);
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if (result != -1 && result >= prefs_get_max_log_size()) {
_rotate_log_file();
}
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}
}
}
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log_level_t
log_level_from_string(char *log_level)
{
assert(log_level != NULL);
if (strcmp(log_level, "DEBUG") == 0) {
return PROF_LEVEL_DEBUG;
} else if (strcmp(log_level, "INFO") == 0) {
return PROF_LEVEL_INFO;
} else if (strcmp(log_level, "WARN") == 0) {
return PROF_LEVEL_WARN;
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} else if (strcmp(log_level, "ERROR") == 0) {
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return PROF_LEVEL_ERROR;
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} else { // default to info
return PROF_LEVEL_INFO;
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}
}
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static void
_rotate_log_file(void)
{
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gchar *log_file = _get_main_log_file();
size_t len = strlen(log_file);
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char *log_file_new = malloc(len + 3);
strncpy(log_file_new, log_file, len);
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log_file_new[len] = '.';
log_file_new[len+1] = '1';
log_file_new[len+2] = 0;
log_close();
rename(log_file, log_file_new);
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log_init(log_get_filter());
free(log_file_new);
free(log_file);
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log_info("Log has been rotated");
}
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void
chat_log_init(void)
{
session_started = g_date_time_new_now_local();
log_info("Initialising chat logs");
logs = g_hash_table_new_full(g_str_hash, (GEqualFunc) _key_equals, g_free,
(GDestroyNotify)_free_chat_log);
}
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void
groupchat_log_init(void)
{
log_info("Initialising groupchat logs");
groupchat_logs = g_hash_table_new_full(g_str_hash, (GEqualFunc) _key_equals, g_free,
(GDestroyNotify)_free_chat_log);
}
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void
chat_log_chat(const gchar * const login, gchar *other,
const gchar * const msg, chat_log_direction_t direction, GTimeVal *tv_stamp)
{
struct dated_chat_log *dated_log = g_hash_table_lookup(logs, other);
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// no log for user
if (dated_log == NULL) {
dated_log = _create_log(other, login);
g_hash_table_insert(logs, strdup(other), dated_log);
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// log exists but needs rolling
} else if (_log_roll_needed(dated_log)) {
dated_log = _create_log(other, login);
g_hash_table_replace(logs, strdup(other), dated_log);
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}
gchar *date_fmt = NULL;
GDateTime *dt = NULL;
if (tv_stamp == NULL) {
dt = g_date_time_new_now_local();
} else {
dt = g_date_time_new_from_timeval_utc(tv_stamp);
}
date_fmt = g_date_time_format(dt, "%H:%M:%S");
FILE *logp = fopen(dated_log->filename, "a");
if (logp != NULL) {
if (direction == PROF_IN_LOG) {
if (strncmp(msg, "/me ", 4) == 0) {
fprintf(logp, "%s - *%s %s\n", date_fmt, other, msg + 4);
} else {
fprintf(logp, "%s - %s: %s\n", date_fmt, other, msg);
}
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} else {
if (strncmp(msg, "/me ", 4) == 0) {
fprintf(logp, "%s - *me %s\n", date_fmt, msg + 4);
} else {
fprintf(logp, "%s - me: %s\n", date_fmt, msg);
}
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}
fflush(logp);
int result = fclose(logp);
if (result == EOF) {
log_error("Error closing file %s, errno = %d", dated_log->filename, errno);
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}
}
g_free(date_fmt);
g_date_time_unref(dt);
}
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void
groupchat_log_chat(const gchar * const login, const gchar * const room,
const gchar * const nick, const gchar * const msg)
{
gchar *room_copy = strdup(room);
struct dated_chat_log *dated_log = g_hash_table_lookup(groupchat_logs, room_copy);
// no log for room
if (dated_log == NULL) {
dated_log = _create_groupchat_log(room_copy, login);
g_hash_table_insert(groupchat_logs, room_copy, dated_log);
// log exists but needs rolling
} else if (_log_roll_needed(dated_log)) {
dated_log = _create_groupchat_log(room_copy, login);
g_hash_table_replace(logs, room_copy, dated_log);
}
GDateTime *dt = g_date_time_new_now_local();
gchar *date_fmt = g_date_time_format(dt, "%H:%M:%S");
FILE *logp = fopen(dated_log->filename, "a");
if (logp != NULL) {
if (strncmp(msg, "/me ", 4) == 0) {
fprintf(logp, "%s - *%s %s\n", date_fmt, nick, msg + 4);
} else {
fprintf(logp, "%s - %s: %s\n", date_fmt, nick, msg);
}
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fflush(logp);
int result = fclose(logp);
if (result == EOF) {
log_error("Error closing file %s, errno = %d", dated_log->filename, errno);
}
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}
g_free(date_fmt);
g_date_time_unref(dt);
}
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GSList *
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chat_log_get_previous(const gchar * const login, const gchar * const recipient)
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{
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GSList *history = NULL;
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GDateTime *now = g_date_time_new_now_local();
GDateTime *log_date = g_date_time_new(tz,
g_date_time_get_year(session_started),
g_date_time_get_month(session_started),
g_date_time_get_day_of_month(session_started),
g_date_time_get_hour(session_started),
g_date_time_get_minute(session_started),
g_date_time_get_second(session_started));
// get data from all logs from the day the session was started to today
while (g_date_time_compare(log_date, now) != 1) {
char *filename = _get_log_filename(recipient, login, log_date, FALSE);
FILE *logp = fopen(filename, "r");
if (logp != NULL) {
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GString *header = g_string_new("");
g_string_append_printf(header, "%d/%d/%d:",
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g_date_time_get_day_of_month(log_date),
g_date_time_get_month(log_date),
g_date_time_get_year(log_date));
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history = g_slist_append(history, header->str);
g_string_free(header, FALSE);
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char *line;
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while ((line = prof_getline(logp)) != NULL) {
history = g_slist_append(history, line);
}
fclose(logp);
}
free(filename);
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GDateTime *next = g_date_time_add_days(log_date, 1);
g_date_time_unref(log_date);
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log_date = next;
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}
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g_date_time_unref(log_date);
g_date_time_unref(now);
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return history;
}
void
chat_log_close(void)
{
g_hash_table_remove_all(logs);
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g_hash_table_remove_all(groupchat_logs);
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g_date_time_unref(session_started);
}
static struct dated_chat_log *
_create_log(char *other, const char * const login)
{
GDateTime *now = g_date_time_new_now_local();
char *filename = _get_log_filename(other, login, now, TRUE);
struct dated_chat_log *new_log = malloc(sizeof(struct dated_chat_log));
new_log->filename = strdup(filename);
new_log->date = now;
free(filename);
return new_log;
}
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static struct dated_chat_log *
_create_groupchat_log(char *room, const char * const login)
{
GDateTime *now = g_date_time_new_now_local();
char *filename = _get_groupchat_log_filename(room, login, now, TRUE);
struct dated_chat_log *new_log = malloc(sizeof(struct dated_chat_log));
new_log->filename = strdup(filename);
new_log->date = now;
free(filename);
return new_log;
}
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static gboolean
_log_roll_needed(struct dated_chat_log *dated_log)
{
gboolean result = FALSE;
GDateTime *now = g_date_time_new_now_local();
if (g_date_time_get_day_of_year(dated_log->date) !=
g_date_time_get_day_of_year(now)) {
result = TRUE;
}
g_date_time_unref(now);
return result;
}
static void
_free_chat_log(struct dated_chat_log *dated_log)
{
if (dated_log != NULL) {
if (dated_log->filename != NULL) {
g_free(dated_log->filename);
dated_log->filename = NULL;
}
if (dated_log->date != NULL) {
g_date_time_unref(dated_log->date);
dated_log->date = NULL;
}
free(dated_log);
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}
}
static
gboolean _key_equals(void *key1, void *key2)
{
gchar *str1 = (gchar *) key1;
gchar *str2 = (gchar *) key2;
return (g_strcmp0(str1, str2) == 0);
}
static char *
_get_log_filename(const char * const other, const char * const login,
GDateTime *dt, gboolean create)
{
gchar *chatlogs_dir = _get_chatlog_dir();
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GString *log_file = g_string_new(chatlogs_dir);
free(chatlogs_dir);
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gchar *login_dir = str_replace(login, "@", "_at_");
g_string_append_printf(log_file, "/%s", login_dir);
if (create) {
create_dir(log_file->str);
}
free(login_dir);
gchar *other_file = str_replace(other, "@", "_at_");
g_string_append_printf(log_file, "/%s", other_file);
if (create) {
create_dir(log_file->str);
}
free(other_file);
gchar *date = g_date_time_format(dt, "/%Y_%m_%d.log");
g_string_append(log_file, date);
g_free(date);
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char *result = strdup(log_file->str);
g_string_free(log_file, TRUE);
return result;
}
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static char *
_get_groupchat_log_filename(const char * const room, const char * const login,
GDateTime *dt, gboolean create)
{
gchar *chatlogs_dir = _get_chatlog_dir();
GString *log_file = g_string_new(chatlogs_dir);
g_free(chatlogs_dir);
gchar *login_dir = str_replace(login, "@", "_at_");
g_string_append_printf(log_file, "/%s", login_dir);
if (create) {
create_dir(log_file->str);
}
free(login_dir);
g_string_append(log_file, "/rooms");
if (create) {
create_dir(log_file->str);
}
gchar *room_file = str_replace(room, "@", "_at_");
g_string_append_printf(log_file, "/%s", room_file);
if (create) {
create_dir(log_file->str);
}
free(room_file);
gchar *date = g_date_time_format(dt, "/%Y_%m_%d.log");
g_string_append(log_file, date);
g_free(date);
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char *result = strdup(log_file->str);
g_string_free(log_file, TRUE);
return result;
}
static gchar *
_get_chatlog_dir(void)
{
gchar *xdg_data = xdg_get_data_home();
GString *chatlogs_dir = g_string_new(xdg_data);
g_string_append(chatlogs_dir, "/profanity/chatlogs");
gchar *result = strdup(chatlogs_dir->str);
free(xdg_data);
g_string_free(chatlogs_dir, TRUE);
return result;
}
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static gchar *
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_get_main_log_file(void)
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{
gchar *xdg_data = xdg_get_data_home();
GString *logfile = g_string_new(xdg_data);
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g_string_append(logfile, "/profanity/logs/profanity");
if (!prefs_get_boolean(PREF_LOG_SHARED)) {
g_string_append_printf(logfile, "%d", getpid());
}
g_string_append(logfile, ".log");
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gchar *result = strdup(logfile->str);
free(xdg_data);
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g_string_free(logfile, TRUE);
return result;
}
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static char*
_log_string_from_level(log_level_t level)
{
switch (level)
{
case PROF_LEVEL_ERROR:
return "ERR";
case PROF_LEVEL_WARN:
return "WRN";
case PROF_LEVEL_INFO:
return "INF";
case PROF_LEVEL_DEBUG:
return "DBG";
default:
return "LOG";
}
}