diff options
Diffstat (limited to 'lib/gs-debug.c')
| -rw-r--r-- | lib/gs-debug.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/lib/gs-debug.c b/lib/gs-debug.c new file mode 100644 index 0000000..ad429a4 --- /dev/null +++ b/lib/gs-debug.c @@ -0,0 +1,190 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- + * vi:set noexpandtab tabstop=8 shiftwidth=8: + * + * Copyright (C) 2016 Richard Hughes <richard@hughsie.com> + * Copyright (C) 2017 Kalev Lember <klember@redhat.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include "config.h" + +#include <stdio.h> +#include <unistd.h> + +#include "gs-debug.h" + +struct _GsDebug +{ + GObject parent_instance; + GMutex mutex; + gboolean use_time; +}; + +G_DEFINE_TYPE (GsDebug, gs_debug, G_TYPE_OBJECT) + +static GLogWriterOutput +gs_log_writer_console (GLogLevelFlags log_level, + const GLogField *fields, + gsize n_fields, + gpointer user_data) +{ + GsDebug *debug = GS_DEBUG (user_data); + const gchar *log_domain = NULL; + const gchar *log_message = NULL; + g_autofree gchar *tmp = NULL; + g_autoptr(GMutexLocker) locker = NULL; + g_autoptr(GString) domain = NULL; + + /* enabled */ + if (g_getenv ("GS_DEBUG") == NULL && + log_level == G_LOG_LEVEL_DEBUG) + return G_LOG_WRITER_HANDLED; + + /* get data from arguments */ + for (gsize i = 0; i < n_fields; i++) { + if (g_strcmp0 (fields[i].key, "MESSAGE") == 0) { + log_message = fields[i].value; + continue; + } + if (g_strcmp0 (fields[i].key, "GLIB_DOMAIN") == 0) { + log_domain = fields[i].value; + continue; + } + } + + /* this is really verbose */ + if (g_strcmp0 (log_domain, "dconf") == 0 && + log_level == G_LOG_LEVEL_DEBUG) + return G_LOG_WRITER_HANDLED; + + /* make threadsafe */ + locker = g_mutex_locker_new (&debug->mutex); + g_assert (locker != NULL); + + /* time header */ + if (debug->use_time) { + g_autoptr(GDateTime) dt = g_date_time_new_now_utc (); + tmp = g_strdup_printf ("%02i:%02i:%02i:%04i", + g_date_time_get_hour (dt), + g_date_time_get_minute (dt), + g_date_time_get_second (dt), + g_date_time_get_microsecond (dt) / 1000); + } + + /* make these shorter */ + if (g_strcmp0 (log_domain, "PackageKit") == 0) { + log_domain = "PK"; + } else if (g_strcmp0 (log_domain, "GsPlugin") == 0) { + log_domain = "Gs"; + } + + /* pad out domain */ + domain = g_string_new (log_domain); + for (guint i = domain->len; i < 3; i++) + g_string_append (domain, " "); + + switch (log_level) { + case G_LOG_LEVEL_ERROR: + case G_LOG_LEVEL_CRITICAL: + case G_LOG_LEVEL_WARNING: + /* to screen */ + if (isatty (fileno (stderr)) == 1) { + /* critical in red */ + if (tmp != NULL) + g_printerr ("%c[%dm%s ", 0x1B, 32, tmp); + g_printerr ("%s ", domain->str); + g_printerr ("%c[%dm%s\n%c[%dm", 0x1B, 31, log_message, 0x1B, 0); + } else { /* to file */ + if (tmp != NULL) + g_print ("%s ", tmp); + g_print ("%s ", domain->str); + g_print ("%s\n", log_message); + } + break; + default: + /* to screen */ + if (isatty (fileno (stdout)) == 1) { + /* debug in blue */ + if (tmp != NULL) + g_print ("%c[%dm%s ", 0x1B, 32, tmp); + g_print ("%s ", domain->str); + g_print ("%c[%dm%s\n%c[%dm", 0x1B, 34, log_message, 0x1B, 0); + break; + } else { /* to file */ + if (tmp != NULL) + g_print ("%s ", tmp); + g_print ("%s ", domain->str); + g_print ("%s\n", log_message); + } + } + + /* success */ + return G_LOG_WRITER_HANDLED; +} + +static GLogWriterOutput +gs_log_writer_journald (GLogLevelFlags log_level, + const GLogField *fields, + gsize n_fields, + gpointer user_data) +{ + /* important enough to force to the journal */ + switch (log_level) { + case G_LOG_LEVEL_ERROR: + case G_LOG_LEVEL_CRITICAL: + case G_LOG_LEVEL_WARNING: + case G_LOG_LEVEL_INFO: + return g_log_writer_journald (log_level, fields, n_fields, user_data); + break; + default: + break; + } + + return G_LOG_WRITER_UNHANDLED; +} + +static GLogWriterOutput +gs_debug_log_writer (GLogLevelFlags log_level, + const GLogField *fields, + gsize n_fields, + gpointer user_data) +{ + if (g_log_writer_is_journald (fileno (stderr))) + return gs_log_writer_journald (log_level, fields, n_fields, user_data); + else + return gs_log_writer_console (log_level, fields, n_fields, user_data); +} + +static void +gs_debug_finalize (GObject *object) +{ + GsDebug *debug = GS_DEBUG (object); + + g_mutex_clear (&debug->mutex); + + G_OBJECT_CLASS (gs_debug_parent_class)->finalize (object); +} + +static void +gs_debug_class_init (GsDebugClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + object_class->finalize = gs_debug_finalize; +} + +static void +gs_debug_init (GsDebug *debug) +{ + g_mutex_init (&debug->mutex); + debug->use_time = g_getenv ("GS_DEBUG_NO_TIME") == NULL; + g_log_set_writer_func (gs_debug_log_writer, + g_object_ref (debug), + (GDestroyNotify) g_object_unref); +} + +GsDebug * +gs_debug_new (void) +{ + return GS_DEBUG (g_object_new (GS_TYPE_DEBUG, NULL)); +} |