WS SDK Professional Edition Development Utilities

SchemaDiff

The schemadiff utility compares two schemas and generates a report describing the differences between the two. For developers, this utility can be useful in identifying the changes made to the previous version of MOF files.

Run schemadiff from the following directory

Platform	Directory
Windows	C:\Program Files\ws\sdk\bin
Linux	/usr/ws/sdk/bin
Solaris	/opt/ws/sdk/bin

Command Line Syntax

The schemadiff utility can be invoked by typing schemadiff at the command prompt.

The command line syntax for the schemadiff utility is included below.


						C:\>cd \Program Files\ws\sdk\bin


						C:\Program Files\ws\sdk\bin>schemadiff -h
 SchemaDiff [options] SCHEMA1 SCHEMA2
 Copyright (c) 2002-2010 WS, Inc.
 Use is
						Subject to License Terms.


						Options:
 -h Display this usage statement
 -o <dir> Directory
							to output files
 -q Quiet mode
 -v Display the version
							information


						Commands:
 SCHEMA1 The schema to be compared against
 SCHEMA2 The
							schema to compare


						Examples:
 schemadiff schema/2.22.1/final/cim_schema_2.22.1.mof schema/2.23.0/final/cim_s chema_2.23.0.mof
 schemadiff
						schema/2.23.0/final/cim_schema_2.23.0.mof.mof schema/2.23.0/experim ental/cim_schema_2.23.0.mof

C:\Program Files\ws\sdk\bin>

Default Values

The following table shows the default values for each of the option arguments. If an option is not listed, then it has no default value.

Option	Description	Default
-h	Display this usage statement	FALSE
-o <dir>	Directory to output files	<current directory>
-q	Quiet mode	FALSE
-v	Display the version information	FALSE

Example:

The following command generates a report describing the differences between the older 2.23 schema and the new 2.24 schema.

Arguments:

-o diff <Output directory>
..\..\standards\dmtf\schema\2.22.1\final\cim_schema_2.22.1.mof <Old Schema>
..\..\standards\dmtf\schema\2.23.0\final\cim_schema_2.23.0.mof <NewSchema>

The following shows the command and the result.


						C:\>cd \Program Files\ws\standards\dmtf\schema\2.23.0\final
 C:\Program Files\ws\standards\dmtf\schema\2.23.0\final>unzip
						cim_schema_2.23.0Final-MOFs.zip
.
 .
 inflating: User/CIM_VerificationService.mof
 inflating: cim_schema_2.23.0.mof

						inflating: qualifiers.mof
 inflating: qualifiers_optional.mof


						C:\>cd \Program Files\ws\standards\dmtf\schema\2.24.1\final
 C:\Program Files\ws\standards\dmtf\schema\2.24.1\final>unzip
						cim_schema_2.24.1Final-MOFs.zip
 .
 .
 inflating: User/CIM_VerificationService.mof
 inflating: cim_schema_2.24.1.mof

						inflating: qualifiers.mof
 inflating: qualifiers_optional.mof


						C:\>cd \Program Files\ws\sdk\bin
 C:\Program Files\ws\sdk\bin>mkdir diff
 C:\Program Files\ws\sdk\bin>schemadiff -o diff
						..\..\standards\dmtf\schema\2.23.0\final\cim_schema_2.23.0.mof ..\..\standards\dmtf\schema\2.24.1\final\cim_schem a_2.24.1.mof
 .
 .

						Processing CIM_CASignsPublicKeyCertificate
 SchemaDiff completed successfully.
 Open index.html to view the report.


						C:\Program Files\ws\sdk\bin>cd diff
 C:\Program Files\ws\sdk\bin\diff>dir /b *.html
 .
 .
 PRS_Transaction.html

						schema.html
 schemadiff.html

C:\Program Files\ws\sdk\bin\diff>

schemadiff generates an HTML file for each class in the new schema and an index.html file that references all of the other HTML files. All of these files are generated in the diff subdirectory.

NOTE: If the -o option were not used, then all files are created in the current directory, which in the example above would have been \Program files\ws\sdk\bin

If you scroll down the Summary pane, you will see a table listing the modified and new classes.

Clicking on any link for a particular class will show its class information. The format is identical to the format generated by mofmorph. For example, clicking on the CIM_ComputerSystem link shows

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