RCCDIFFP

RCCDIFFP determines the difference between the current and previous versions of the file identified by the fully qualified name.

Syntax

RCCDIFFP(platform,CCtype,viewType,host,port,view,fullyQualifiedVersionOfAFile,distributedViewDirectory,TSCdirectory,distributedUserName,client_codepage,server_codepage,client_rt_codepage,timeout,cq_id,cq_passwd,cq_dbset,verbose_option)

Arguments

You can use the following arguments when you run the RCCDIFFP function:

platform: The name of the platform that contains the DevOps Code ClearCase® VOB. Allowable values: WINDOWS or UNIX®.
CCtype: The type of DevOps Code ClearCase® environment. Allowable values: UCM or NONUCM.
viewType: The type of DevOps Code ClearCase® view. Allowable values: SNAPSHOT or DYNAMIC.
host: The TCP/IP address or DNS name of the machine that contains the DevOps Code ClearCase® VOB. This address must be a valid TCP/IP address or DNS name.
port: The TCP/IP port number used to contact the host specified by the host argument. Allowable values: 0-65535.
view: The DevOps Code ClearCase® view used to access the fully qualified file name. This argument is required only when the platform is UNIX® and the view type is DYNAMIC. Otherwise, the argument is null.
fullyQualifiedVersionOfaFile: The fully qualified version name of the file.
distributedViewDirectory: The directory for a specified view on the distributed system. This argument is required when the platform is UNIX® and the view type is SNAPSHOT.
TSCdirectory: The name of the directory on the host machine from which the server component of TSO Client was started.
distributedUserName: The user ID on the distributed system on which you are running DevOps Code ClearCase® and the server component of TSO Client.
client_codepage: The code page for the input, output, and build script files on the client. Code page conversion occurs only on text files. This argument is optional.
server_codepage: The code page used on the server. This argument is optional.
client_rt_codepage: The code page for the distributed system's locale. This option defaults to the same value as is specified with the client codepage client_codepage argument. This argument is optional.
timeout: The number of minutes that the server waits for an invoked build script to return before stopping the build event. This argument is optional.
cq_id: A ClearQuest® user ID. This argument is optional.
cq_passwd: The password for the ClearQuest® user ID. This argument is optional.
cq_dbset: The name of the schema repository to be used by ClearQuest®. This argument is optional.
verbose_option: The message verbosity. The value for this argument can be -V, -V -V, or -V -V -V. This argument is optional.

Result

The following table lists the return and reason codes that result from running the RCCDIFFP function; it also provides a description of the meaning of the codes.

Table 1. Result of running the RCCDIFFP function
Return code	Reason code	Description
0	600	Processing successful.
8	611	Required argument missing.
	612	Invalid argument value.
	614	Nonzero return code from EXECIO.
	616	Improper number of arguments.
	697	Invalid combination of platform, CCtype, and viewType.
12	698	Internal error.
12	699	Internal error.

Example

List the difference between a version of a file pg1.cbl and its predecessor in the DevOps Code ClearCase® VOB testvob.

The VOB resides on a computer running Windows® with an IP address of 9.48.114.54.

The server component of TSO Client is installed in the C:\Program Files\IBM Rational\ClearCase\bin\ directory and is running with auth mode 0, using port 4000.

The NONUCM, DYNAMIC view has been assigned to the Z drive.

The following REXX™ commands could be used to invoke the RCCDIFFP API function:

pltf = ‘WINDOWS'
cctype = ‘NONUCM'
vtype = ‘DYNAMIC'
host = ‘9.48.114.54'
port = ‘4000'
v1 = 'Z:\testvob\dir1\pg1.cbl@@\main\6'
dir = ‘C:\Program Files\IBM Rational\ClearCase\bin\userID'
disuser = ‘userone'
Parse Value RCCCDIFFP(pltf,cctype,vtype,host,port,,v1,,dir,disuser) 
With rccret rccrsn rccmsg

Output

For a list of the output data sets corresponding to the RCCLOG1, RCCOUT, and RCCERR file names, see RCCUALOC.

For a description of the log entries in RCCLOG1, see RCCULOG.

For an example listing of the log, see Example of a log entry.

RCCOUT contains a side-by-side comparison of the specified version and its predecessor. If no differences are detected between the two versions, RCCOUT contains the message Files are identical.

For a detailed description of the comparison report, see the diff command in the DevOps Code ClearCase Command Reference.

RCCOUT example

After a successful completion of the API call in the previous example, RCCOUT contains the following message:

********************************
<<< file 1: \testvob\dir1\pg1.cbl@@\main\5
>>> file 2: Z:\testvob\dir1\pg1.cbl@@\main\6
********************************
-------------[changed 2]---------------|-------------[changed to 2]----
       PROGRAM-ID.             PG1.   +|        this is changed 6 
                                      -|-