Then the config spec file instructs the clearcase to use mkbranch command to. In a dynamic view, if the working directory view differs from the set view sometimes established with the setview command, catcs displays a warning and uses the working directory view. Sep, 2017 as part of the clearcase integration with cadence virtuoso, the clearcase design management capabilities are available to the designers from within the virtuosos cellview editors cve namely schematic, layout etc. So, when i specify a time in config spec, will it be taken before not including the specified time stamp.
This means that the configurationrecord is somehow preserved and checkedin to clearcase will have a baseline label applied to it when a baseline is created. Advanced rational clearcase users might want to refer to these configuration specification config spec details to gain a better understanding of how the branch type and label type names are used. The config spec for a newly created base clearcase view is typically set to the following. Vob and clearcase system setups highley recommended, inc. You can provide a command to execute prior to read the config spec in order to refresh it. Clearcase as a leading indicator of small technology company. Well you can, with the time rules feature of config specs. When you are serving documentsimages from the directory under clearcase. Rational clearcase is a family of computer software tools that supports software configuration management scm of source code and other software development assets. So, when i specify a time in config spec, will it be taken before not including the specified time. Unix and linux export view config specs if you change the config spec of a view that is being exported for non clearcase access, make sure that all users who may currently have the view mounted for that purpose unmount and remount the view. A config spec is the mechanism that a clearcase view determines what versions of an element that the user accesses. How would you see a specific file version in the clearcase. I stamp the config spec utility in clearcase as a masterpiece because, just feed him a few lines of instructions to get what ever version of the file directory you want.
Modifies the meaning of the special version label latest. A views config spec configuration specification contains an ordered set of rules for selecting versions of elements. Config rec in config spec some groups may also use config recs in the config spec of a view to reproduce the configuration of all the versions used as part of a build. The features cc provides outweighs the problems atleast in my book. Instead of being forced to provide a config spec file at an external location, the scm url contains all information that is needed to check out the code. Clearcase remote client for eclipse files not downloaded to. Clearcase server if system is to be the nt snap shot server use the standard configuration if needed, modify and copy the magic file extensions from the process software vob to the c. The version selected by a time rule can change after an update packet is imported at your replica. Peter hack, clearcase product architect, shares the many ways customers use clearcase and the latest product enhancements. It also supports designdata management of electronic design artifacts, thus enabling hardware and software codevelopment. Years, where available, indicate the date of first stable release. Clearcase as a leading indicator of small technology company failure. This set of rules is called a configuration specification, or config spec for short.
This presentation develops the basics for the clearcase scm tool. Use of dynamic views also significantly reduces the time needed to create developer. Cm procedures scripts triggers cm plan clearcase best practices merging clearcase faq. An individual views config spec is stored in its view storage directory, in two forms. Advanced config specs part 1 ever wanted to rollback the clock to see what was in the vob in the past without using an old label in your config spec. Configuration specification details for base rational clearcase. What i cant seem to figure out is how to link clearcase with eclipse. Therefore, if a client on the wrong operating system recompiles a config spec with one of these commands, the config spec becomes unusable by any client using that view. The navigator shows directory outline and these are in the view but the files have not been downloaded and do not appear in the view or eclipse. Had clearcase vob servers with uptimes over a year. That is, a config spec with full pathnames can be shared across network regions, even when vobtags disagree, but it must be compiled in the right place. If git were simple, there would be no need for the dozens of books on using git.
I try to understand how reliable are the time rules of clearcase 8. Youd have to recreate the list every time your config spec changed or more specifically, whenever your config spec changed that would possibly add to this list which means you need to know how your changes could affect this list. Reevaluates config spec and reselects vob elements to show. By default, a base clearcase view uses a config spec that selects the latest version on the main branch of each loaded element. Conceptually git and clearcase are very different in the way they manage data and maintain different versions. For many users of a base clearcase scm installation, autogenerated config specs are more convenient than usersupplied config specs. Aug 29, 2004 is it just me or is clearcase a leading indicator of small technology company death.
The attache workspace is not updated to reflect any changes in the views contents. A file or directory, under source control, stored in a clearcase vob. These custom configuration files can then reference other. Clearcase menu is made available on the menu bar of the cellview editors. Jan 15, 2011 clearcase provides access to data in the repository via a virtual file system called mvfsmultiversion file system. Changing then load rules to download individual files does not work either. When i try to modify the config spec from a snapshot view, i got a. Understanding config specs i recently had a question concerning how to understand configuration specifications or config specs in clearcase views, so here goes. The config spec uses a query language to evaluate which elements to display in a view, thus a config spec can be written to exclude certain elements. This is a practical book with plenty of code examples for mastering clearcase tools to monitor, analyze, and manage software configurations. Then it checks if the version selector field matches. Not tested, but, according the config spec man page.
In practice, a variety of caching techniques and optimizations reduce the computational requirements. Under base clearcase, each view is controlled by its associated configuration specification, commonly referred to as a config spec. This plugin allows you to use either base clearcase and ucm clearcase as. Config specs for ucm views can be edited only to add custom rules in the areas where they are permitted. How do i determine the full pathname and version of an element identified only by its oid. Here are some of the points about git which are different from clearcase and took some time for me to sink in. Casevisionclearcase reference pages document number 0071630 contributors written by john posner illustrated by john posner production by gloria ackley. In the ucm management model, config specs do not need to be created or. Ucm config specs are different from those for base clearcase in that their rules are. Each time a reference is made to a file or directory element either by clearcase software or by standard programs, the config spec is used to select a particular version of the element. Ive never used the product, never even seen a demo, and yes, i know, they position themselves as software asset management for medium to large teams. I dont think they will be fading away any time soon considering they have already. How do i understand using directory protections is not sufficient to protect the contained elements. Base vob that stores versions of file elements and directory elements also stores.
If this happens, recompile the config spec on the right operating system. The config spec file consists of rules, one per line, that are interpreted from top to bottom. Clearcase config contains all the environment and platformspecific configuration settings and attributes for the version of clearcase running on the host system. Each time a user accesses a vob file or navigates a vob directory, the views config spec is evaluated to select the proper. After creating view we have to create branch because in config spec we keep on rule pertaining to check outs.
Clearcase design management from within cadence virtuoso. The config spec s element rules use relative pathnames only, which do not include vobtags. Rational clearcase is a family of computer software tools that supports software configuration. If you are a developer who wants to use clearcase for software development then this book is for you. Simple bridge between base clearcase or ucm and git. For example, your config spec has the following time rule, which selects the latest version on the main branch as of july 10 at 7. This restriction does not apply if any of the following are true.
This is a collection of rules stored internally in a text file, but compiled before use that specifies what element versions files or directories are to be displayed in a view. I have the ibm rational clearcase client installed on my windows 7 machine. Ive used clearcase some years ago when i was working for a very large. Clearcase looks into the config spec and matches the rules to the element that you want to access. Dates are displayed in the us notation without the year. If the date refers to time less than a year, we can put a hyphen for a year i. There is an initial hurdle before one understands the configspec syntax. Clearcase view configuration specifications merging to branch. If you omit the century, year, or a specific date, the most recent one is used. Clearcase configuration specification highley recommended, inc. I understand how to set up vobs, views, manipulate files and branch using the config spec for the view. At this point in time it is not clear to me how rm rmname is different from ct rmelem.
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