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.TH "g-ir-scanner" 1
.SH NAME
g-ir-scanner \- extracting C metadata from sources and headers
.SH SYNOPSIS
.B g-ir-scanner
[OPTION...] FILES...
.SH DESCRIPTION
g-ir-scanner is a tool which generates GIR XML files by parsing headers
and introspecting GObject based libraries.
It is usually invoked during the normal build step for a project and
the information is saved to disk and later installed, so that language bindings
and other applications can use it.
Header files and source files are passed in as arguments on the command line.
The suffix determines whether a file be treated as a source file (.c) or a
header file (.h). Currently only C based libraries are supported by the scanner.
.SH OPTIONS
.TP
.B \--help
Show help options
.TP
.B \--quiet
If passed, do not print details of normal operation.
.TP
.B \--warn-all
Display warnings for public API which is not introspectable.
.TP
.B \--warn-error
Make warnings be fatal errors.
.TP
.B \--format=FORMAT
This parameters decides which the resulting format will be used.
The default value is gir.
.TP
.B \--include=NAME
Parses another metadata file. The format is determined by looking
at the file suffix. If a library depends on another the corresponding
metadata file should be included so references to external types are
correctly specified.
.TP
.B \--add-include-path=PATH
Add a directory to the path which the scanner uses to find GIR files.
Can be used multiple times to specify multiple directories
.TP
.B \-i, --library=LIBRARY
Specifies a library that will be introspected. This means that the
*_get_type() functions in it will be called for GObject data types.
The name of the library should not contain the leading lib prefix nor
the ending shared library suffix.
.TP
.B \-L, --library-path=PATH
Include this directory when searching for a library.
This option can be specified multiple times to include more than one
directory to look for libraries in.
.TP
.B \-Idirectory
Include this directory in the list of directories to be searched for
header files. You need to pass to the scanner all the directories
you'd normally pass to the compiler when using the specified source
files.
.TP
.B \-n, --namespace=NAME
The namespace name. This name should be capitalized, eg the first letter
should be upper case. Examples: Gtk, Clutter, WebKit.
.TP
.B \--no-libtool
Disable usage of libtool for compiling stub introspection binary. Use this
if your build system does not require libtool.
.TP
.B \--libtool
Full path to libtool executable. Typically used for Automake systems.
.TP
.B --nsversion=VERSION
The namespace version. For instance 1.0. This is usually the platform version,
eg 2.0 for Gtk+, not 2.12.7.
.TP
.B \-p, --program=PROGRAM
Specifies a binary that will be introspected. This means that the
*_get_type() functions in it will be called for GObject data types.
The binary must be modified to take a --introspect= option, and
to pass the argument to this function to g_irepository_dump.
.TP
.B \--program-arg=ARG
Additional argument to pass to program for introspection.
.TP
.B \--strip-prefix=PREFIX
If this option is specified a prefix will be stripped from all functions.
If not specified, the lower case version of the namespace will be used.
Eg, a strip prefix of
.B g_
and a namespace set to
.B GLib
will export the function
.B g_type_name
as
.B GLib.type_name.
.TP
.B \--output=FILENAME
Name of the file to output. Normally namespace + format extension.
Eg, GLib.gir.
.TP
.B \--pkg=PACKAGE
List of pkg-config packages to get compiler and linker flags from.
This option can be specified multiple times to include flags from
several pkg-config packages.
.TP
.B \--pkg-export=PACKAGE
List of pkg-config packages that are provided by the generated gir.
This option can be specified multiple times if the gir provides more
packages.
If not specified, the packages specified with --pkg= will be used.
.TP
.B \--verbose
Be verbose, include some debugging information.
.TP
.B \--typelib-xml
Convert the resulting xml to only output the types relevant
to the typelib compiler. This is mainly useful for verifying the
correctness of the typelib itself.
.TP
.B \--inject=FILENAME
Injects a variant of a GIR file into the scanner. This is used to add
custom functions to a GIR wrapping a library without modifying the upstream
library itself. The Format of the inject file is similar to a GIR,
but the root node is <injections> rather than <repository> and
<inject path="..."> where ... is an xpath expression.
Example:
<inject path="namespace/class[@name='TestDrawable']">
<method name="get_width" c:identifier="girepo_test_drawable_get_width">
<return-value transfer-ownership="none">
<type name="int" c:type="gint"/>
</return-value>
</method>
</inject>
The example above will add a new method called get_with to the TestDrawable class.
.TP
.B \--xpath-assertions=FILENAME
Loads a list xpath assertions from FILENAME, this is useful for verifying
that the GIR itself is properly generated.
.SH ENVIRONMENT VARIABLES
The g-ir-scanner uses the XDG_DATA_DIRS variable to check for dirs,
the gir's are located in XDG_DATA_DIRS/share/gir-1.0. It is normally
set on a distribution so you shouldn't need to set it yourself.
.SH BUGS
Report bugs at http://bugzilla.gnome.org/ in the glib product and
introspection component.
.SH HOMEPAGE and CONTACT
http://live.gnome.org/GObjectIntrospection
.SH AUTHORS
Johan Dahlin
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