UCM：如何在任意增量基线上创建动态视图（基本清除） [英] UCM: How to create dynamic view (base clearcase) on arbitrary incremental baseline

问题描述

当前，我们使用ClearCase UCM。我正在尝试评估在项目中使用git的可能性。我决定在过去三年中通过集成流程创建大型仓库。 pvob下有12个小提琴。为了进行评估（造成最坏的情况），我将所有更改都放入单个存储库中。

Currently we use ClearCase UCM.. I am trying to evaluate possibility of using git in our project. I decided to create large repo with past three years changes from an integration stream. The pvob has 12 vobs under it. For purpose of evaluation(creating a worst case), I am putting all changes into single repository.

我想创建一个基本的Clearcase视图然后在 pvob 上针对每个基准调整其规格。然后将其同步到git存储库。

I want to create a base clearcase view and then adjust its spec for every baseline on the pvob. This will then synched to git repository.

简而言之，问题：如何在给定pvob基线的情况下创建基本的clearcase视图，并不断更改其配置规范以匹配每个基线？

Question in short: How can I create a base clearcase view given a pvob base line and keep changing its config spec to match every baseline?

（教学笔记：我要实现的目标的图片。）

(academic note : A picture of what I am trying to achieve.. )

（在 ClearCase UCM：是否可以在任何给定的基准上拥有临时视图？ 对于我来说是一种解决方法。我想我可以避免创建许多临时流的步骤-不知道如何做！）

(Approach discussed in ClearCase UCM: Is it possible to have a temporary view on any given baseline? is kind of work around in my case. I guess I can avoid the step of creating many temporary streams- not sure how!)

推荐答案

我将所有更改都放入单个存储库中。

I am putting all changes into single repository.

完成多次ClearCase到Git的迁移后，正确的比例通常是一个UCM组件等于一个Git回购。

如何在给定pvob基线的情况下创建基本的clearcase视图，并不断更改其配置规范以匹配每个基线吗？

How can I create a base clearcase view given a pvob base line and keep changing its config spec to match every baseline?

您不必创建基本的ClearCase视图。

您可以创建Int流的子流，并管理要在其中看到的基线。

（ cleartool rebase -bas xxx @ \YourPVob ）

You don't have to create a base ClearCase view.
You can create a sub-stream to the Int stream, and manage the baselines you want to see there.
(cleartool rebase -bas xxx@\YourPVob)

然后您可以将该子流的UCM视图用作git导入的源。

You can then use an UCM view to that sub-stream as a source for your git import.

如果这种方法不可行（正如我在您以前的回答中提到的 所述，因为例如所有基线均未在同一父流中创建），则可以创建基本ClearCase视图并修改其配置规范，以选择基线完整ID：

If that approach isn't possible (as I explained in my previous answer you mention, because for instance all baselines haven't been created in the same parent stream), then you can create a base ClearCase view and modify its config spec in order to select the baseline complete ids:

element * BaselineId1    
element * BaselineId2    
...

（此处的动态视图对于调整配置规范更为有用。

设置好配置规范后，您可以使用相同的配置规范和适当的加载规则更新快照视图，以将其用作git导入的源。）

(A dynamic view here is more useful to tweak the config spec.
Once the config spec is set, you can update a snapshot view with the same config spec, and appropriate load rules, to use it as a source for your git import).

您需要确保这些基准是：

You need to make sure those baselines are:

• 完整基线 （您可以将增量基线升级为完整基线）



• 以其ID引用（而不是其标题，即其可见的名称。）
  
  另请参见 使用Cleartool显示当前基准 ：

cleartool describe -l baseline:aBaseline@\aPVob
cleartool descr -fmt "%[found_bls]CXp" stream:myStream@\myPVob

第二个命令将为您提供流中的所有基线。

在两种情况下，您都会看到t

The second command would give you all baselines in a stream.
In both cases, you would see the baseline ids in addition of their names.

我在以下内容中提到了ClearCase到Git的迁移：

I have mention the ClearCase to Git migration aspect in :

• 从UCM ClearCase迁移到GIT


• 如何将ClearCase开发历史集成到Git中？


• 将历史记录从ClearCase保存到Git吗？


• 如何将git桥接到ClearCase？


• 同步GIT和ClearCase

• "Migration from UCM ClearCase to GIT"
• "How to integrate ClearCase development history into Git?"
• "Save history from ClearCase to Git?"
• "How to bridge git to ClearCase?"
• "Sync GIT and ClearCase"

好技巧是使用

git --git-dir=/path/to/git/repo/.git --work-tree=/path/to/ClearCase/view add .

这使您可以将ClearCase视图视为git repo的工作树（这是目标）

That allows you to consider the ClearCase view as the working tree of your git repo (which is the destination of your import).

我通常不尝试从 all 流导入 all 基准，因为它是太复杂了，太早了（为了使这些历史顺序正确无误。）。

I generally don't try to import all baselines from all streams because it is too complex too soon (in order to get the sequence of those histories right).

我只是从主流中获得了一些基准，将它们导入并从那里去了（保留ClearCase引用作为历史研究的只读存档源。

I just get a few baselines from the main stream, import them and go from there (keeping the ClearCase referential as a read-only archive source for history research).

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