mdoc-update(1)						      General Commands Manual						    mdoc-update(1)

NAME

       mdoc update - mdoc(5) documentation format support

SYNOPSIS

       mdoc update [OPTIONS]* ASSEMBLIES

DESCRIPTION

       mdoc update is responsible for the following:

       *      Creating	documentation stubs based on ASSEMBLIES.  The stub-creation process will create new mdoc(5) XML files for each type within
	      ASSEMBLIES, and provide documentation stubs for each member of those types.

       *      Update documentation stubs based on ASSEMBLIES.  Existing mdoc(5) documentation can be updated to reflect changes within ASSEMBLIES,
	      such as added types and members, while preserving existing documentation.

	      In some limited circumstances, renames will be tracked, minimizing the documentation burden when e.g. a parameter is renamed.

       mdoc update does not rely on documentation found within source code, though it can import XML Documentation Comments via the -i option.

       See mdoc(1) and mdoc(5) for more information.

OPTIONS

       --delete
	      Allow  mdoc  update  to  delete  members from documentation files.  The only members deleted are members which are no longer present
	      within ASSEMBLIES and are not present in any other assembly versions.

	      If a type is no longer present, the documentation file is not deleted, but is instead renamed to have a .remove  extension.

	      Version detection is done with the //AssemblyVersion elements; if there are no //AssemblyVersion elements  for  a  given	<Type>	or
	      <Member/>, then the <Type> will be renamed and/or the <Member/> will be removed.

       --exceptions[=SOURCES]
	      EXPERIMENTAL.  This is not 100% reliable, but is intended to serve as an aid for documentation writers.

	      Inspect member bodies to determine what exceptions can be generated from the member.

	      SOURCES is an optional comma-separated list of the following sources that should be searched for exceptions:

		      added   Only generate <exception/> elements for members
				added during the current program execution.
				This keeps mdoc-update from re-generating
				<exception/> elements for all members (and thus
				prevents re-insertion for members that had the
				<exception/> elements removed).
		      all     Find exceptions created in the member itself,
				references to members in the same assembly,
				and references to members in dependent
				assemblies.
		      asm     Find exceptions created in the member itself and
				references to members within the same assembly
				as the member.
		      depasm  Find exceptions created in the member itself and
				references to members within dependent
				assemblies.

	      If SOURCES isn't provided (the default), then only exceptions created within the member itself will be documented.

	      LIMITATIONS:  Exception  searching  is currently implemented by looking for the exception types that are explicitly created based on
	      the known compile-time types.  This has the following limitations:

	      *      This will not find exceptions which are implicit to the IL, such as NullReferenceException and IndexOutOfRangeException.

	      *      This will find exceptions which are not thrown, e.g.

			 public void CreateAnException ()
			 {
			     Exception e = new Exception ();
			 }

	      *      This will not "follow" delegate and interface calls:

			 public void UsesDelegates ()
			 {
			     Func<int, int> a = x => {throw new Exception ();};
			     a (4);
			 }

		     The function UsesDelegates() won't have any exceptions documented.

	      *      This will find exceptions which "cannot happen", such as ArgumentNullExceptions for arguments which are "known"  to  be  non-
		     null:

			 public void A ()
			 {
			     B ("this parameter isn't null");
			 }

			 public void B (string s)
			 {
			     if (s == null)
				 throw new ArgumentNullException ("s");
			 }

		     For the above, if --exceptions=asm is provided then A() will be documented as throwing an ArgumentNullException, which cannot
		     happen.

       -f=FLAG
	      Specify a flag to alter behavior.  Valid flags include:

	      no-assembly-versions
		     See the -fno-assembly-versions documentation, below.

       -fno-assembly-versions
	      Do not generate /Type/AssemblyInfo/AssemblyVersion and /Type/Members/Member/AssemblyInfo elements.

	      This is useful to prevent "churn" during updates.  Normally, if a type or  member  hasn't  changed  but  the  assembly  version  has
	      changed,	then  all  types  and  members	will  be updated to include a new //AssemblyVersion element, thus increasing the amount of
	      changes that need review before committing (assuming all changes are actually reviewed before commit).

	      WARNING: This will interact badly with the --delete option, as  --delete	uses  the  //AssemblyVersion  elements	to  track  version
	      changes.	 Thus, if you have a member which is present in an early assembly version and is removed in a subsequent assembly version,
	      such as System.Text.UTF8Encoding.GetBytes(string) (which is present in .NET 1.0 but not in  .NET	2.0),  then  the  member  will	be
	      removed  when  the --delete -fno-assembly-versions options are specified, the member was present in an earlier version of the assem-
	      bly, and the current version of the assembly does not contain the member.

	      Consequently, this option should only be specified if types and members will never be removed from an assembly.

       -i, --import=FILE
	      Import documentation found within FILE.

	      FILE may contain either csc /doc XML or ECMA-335 XML.

       -L, --lib=DIRECTORY
	      Add DIRECTORY to the assembly search path, so that dependencies of ASSEMBLIES can be found without documenting those assemblies.

       -o, --out=DIRECTORY
	      Place the generated stubs into DIRECTORY.

	      When updating documentation, DIRECTORY is also the source directory.

       -r=ASSEMBLY
	      ASSEMBLY is a dependency for one of ASSEMBLIES which should not be documented but is required to process one of ASSEMBLIES.  Add the
	      directory containing ASSEMBLY to the assembly search path.

	      This option is equivalent to specifying -L `dirname ASSEMBLY`.

       --since=VERSION
	      When  updating  documentation  for an assembly, if a type or member is encountered which didn't exist in the previous version of the
	      assembly a <since version="VERSION"/> element will be inserted.

       --type=TYPE
	      Only update documentation for the type TYPE.

       -h, -?, --help
	      Display a help message and exit.

SEE ALSO

       mdoc(1), mdoc(5), mdoc-assemble(1), mdoc-export-html(1), mdoc-validate(1),

MAILING LISTS

       Visit http://lists.ximian.com/mailman/listinfo/mono-docs-list for details.

WEB SITE

       Visit http://www.mono-project.com for details

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