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GIO Reference Manual | ![]() |
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GIO inspects a few of environment variables in addition to the ones used by GLib.
XDG_DATA_HOME
, XDG_DATA_DIRS
.
GIO uses these environment variables to locate MIME information.
For more information, see the Shared MIME-info Database
and the Base Directory Specification.
GVFS_DISABLE_FUSE
.
This variable can be set to keep Gvfs from starting the fuse backend,
which may be unwanted or unnecessary in certain situations.
The following environment variables are only useful for debugging GIO itself or modules that it loads. They should not be set in a production environment.
GIO_USE_VFS
.
This environment variable can be set to the name of a GVfs
implementation to override the default for debugging purposes.
The GVfs implementation for local files that is included in GIO
has the name "local", the implementation in the gvfs module has
the name "gvfs".
GIO_USE_VOLUME_MONITOR
.
This variable can be set to the name of a GVolumeMonitor
implementation to override the default for debugging purposes.
The GVolumeMonitor implementation for local files that is included
in GIO has the name "unix", the hal-based implementation in the
gvfs module has the name "hal".
GIO_USE_URI_ASSOCIATION
.
This variable can be set to the name of a GDesktopAppInfoLookup
implementation to override the default for debugging purposes.
GIO does not include a GDesktopAppInfoLookup implementation,
the GConf-based implementation in the gvfs module has the name
"gconf".
GVFS_INOTIFY_DIAG
.
When this environment variable is set and GIO has been built
with inotify support, a dump of diagnostic inotify information
will be written every 20 seconds to a file named
/tmp/gvfsdid.
.
pid
GIO_EXTRA_MODULES
.
When this environment variable is set to a path, or a set of
paths separated by a colon, GIO will attempt to load
modules from within the path.
GSETTINGS_BACKEND
.
This variable can be set to the name of a GSettingsBackend
implementation to override the default for debugging purposes.
The memory-based implementation that is included in GIO has
the name "memory", the one in dconf has the name "dconf-settings".
GSETTINGS_SCHEMA_DIR
.
This variable can be set to the name of a directory that is
considered in addition to the glib-2.0/schemas
subdirectories of the XDG system data dirs when looking
for compiled schemas for GSettings.
DBUS_SYSTEM_BUS_ADDRESS
.
This variable is consulted to find the address of the D-Bus system
bus. For the format of D-Bus addresses, see the D-Bus
specification.
Setting this variable overrides platform-specific ways of determining
the system bus address.
DBUS_SESSION_BUS_ADDRESS
.
This variable is consulted to find the address of the D-Bus session bus.
Setting this variable overrides platform-specific ways of determining
the session bus address.
DBUS_STARTER_BUS_TYPE
.
This variable is consulted to find out the 'starter' bus for an
application that has been started via D-Bus activation. The possible
values are 'system' or 'session'.
G_DBUS_DEBUG
.
This variable can be set to a list of debug options, which
cause GLib to print out different types of debugging
information when using the D-Bus routines.
message |
Show all sent and received D-Bus messages |
authentication |
Information about authentication |
The special value all
can be used to turn on
all debug options.
G_DBUS_COOKIE_SHA1_KEYRING_DIR
.
Can be used to override the directory used to store the
keyring used in the DBUS_COOKIE_SHA1
authentication mechanism. Normally the directory used is
.dbus-keyrings
in the user's home
directory.
G_DBUS_COOKIE_SHA1_KEYRING_DIR_IGNORE_PERMISSION
.
If set, the permissions of the directory used to store the
keyring used in the DBUS_COOKIE_SHA1
authentication mechanism won't be checked. Normally the
directory must be readable only by the user.