This module explains the project manager’s tasks to set up a UCM project. Create a UCM project for the ClearCase UCM tutorial. Creating a view on the. Before using ClearCase® UCM, review the development tasks. When you Eclipse: Creating a workspace for your ClearCase UCM tutorial project. You must . Leif Trulsson. Implementing ClearCase. Implementing ClearQuest for. UCM ClearCase Tutorial—A formal hands-on walkthrough of UCM functionality.
|Published (Last):||1 December 2007|
|PDF File Size:||8.61 Mb|
|ePub File Size:||3.52 Mb|
|Price:||Free* [*Free Regsitration Required]|
Our project migrated later, when there was already some experience with CC.
Introduction to the Rational ClearCase UCM tutorial
tutoriial Developers typically have one or more views at their disposal. It is sometimes practical to share views between developers, but sharing tutorail is the more common practice. Before version 7 there was a web service by which users could access ClearCase via their browsers. Always put good comments when you check in. What are clewrcase core concepts of the Clearcase version control system every developer should know?
One aspect of the reasoning is that key files, such as ‘stderr. Then I update my snapshot view with the result of said merge and go on working. This is indeed very difficult to do, especially with large projects but the other alternative is “integration hell” where at the end of the month no one does anything for 3 days while some poor sod tries to make all the changes fit together.
A distinguishing feature of ClearCase is the MultiVersion File System MVFSa proprietary networked filesystem which can mount VOBs as a virtual file system through a dynamic viewselecting a consistent set of versions and enabling the production of derived objects.
The ClearCase problem is the absence of an appropriate merge manager As I’ve indicated in my discussion of SCCS and RCS, if 3-way merging is done treating the keywords in the correct contracted or editable formats, then there is no merge conflict.
Periodically, the project manager incorporates activities in the shared work area into baselines. So, I would not be exporting a whole sub-tree; indeed, the commit that covered the last changes in the library code is typically completely unrelated to the commit that covered the last changes in the program. The system would automatically embed the metadata into files at appropriate markers.
This feature allows build systems to operate on the same file system structure as the source code and ensures that each developer can build independently of one other. The bill-of-materials artifact produced as the result of build auditing is known as the Configuration Record. It is called an “extended path name”: Lessons in this module Eclipse: Can be used to get the details of labels and branches. Partly because I insisted on it, we embedded version control information in the source files via a check-in trigger.
On merge, the system would recognize that lines with the metadata markers do not conflict unless the markers changed differently – it would ignore the metadata content. This is different from other systems where the version number is unique and always growing like the revisions in SVNor is just unique like the SHA1 keys in Git.
Not so in ClearCase. So it is “id-accessed” or “id-referenced”. The tutorail is OK; the biggest problem for me is that my server machine is miles or so from my office or homeso that X over that distant is a bit slow but not intolerably so. This feature is called winking in derived objects and requires that the clearmake or omake tool is used for builds.
The reason it takes so long for checkins is the VERY inefficient protocol, it is connected to the networks LDAP, and it needs to talk to the ClearQuest server to verify the issue report, and then also apply the CQ labels. When you check out you lock the file until you check-in it in. That is grotesquely out tutoial whack! OK – enough wittering. The server is very configurable and most for problems you encounter there is probably a reasonable solution.
Learning objectives After completing the lessons in this module you will know understand the concepts and know how to do the following: Embedded Version Numbers – Good or Evil?
Because MVFS requires server access every time a file is accessed, the performance of the file system depends on server capacity. Here are few concepts I found important, some of these are dlearcase entierly CC only oriented – A check-out is unlike the regular CVS-like notion of a check-out. Views dynamic views are fast on our setup. Git has no direct rights management and must be controlled by hooks during push or pull between repositories hooks available: ClearCase was developed by Atria Software and first released in  on Unix and later on Windows.
Instead, a snapshot view stores a copy of the VOB data locally on the user’s computer. As you modify source files, you use uc, to organize and identify your work.
Build auditing is performed with command-line tools such as a built-in make tools omakeclearmake or by using the clearaudit command, which can invoke another build tool, such as Unix make 1.
UCM Administrator Tasks
It is based on Eclipse software and supplied in both fully packaged Eclipse versions, as a hutorial for Eclipse, and for other environments such as Visual Studio. It does have a certain learning curve but once you get used to the quirks you can pretty much work smoothly with it.
Collaborative software Concurrent Versions System Rational Software software Computer-aided clewrcase engineering tools Proprietary version control systems Software that uses Motif. The combination of distant versioned and local private files allows a dynamic view to appears like a classic hard drive whereas actually any file “written” is stored in the associated view storage.
Continuous integration – don’t let the integration stream stagnate while each developer or team work on their own branch. The shareable derived objects are physically present in the VOB server, not in the views that reference them.
To determine which version, if any, of an element should be visible, ClearCase traverses the configuration specification line-by-line from top to bottom, stopping when a match is found and ignoring any subsequent rules.