Rational Team Concert - Can you merge local files to current repository? - rational-team-concert

Normally a repository in Rational Team Concert compares itself to a base Stream to know what you have added or removed since you've started working.
a side-project started (before we started using RTC), and has now finished. It has the same folder/file structure as the structure within my local repository.
Is there some way to create a patch between this local folder/file and my current RTC repository so I don't need to manually compare the two file-by-file? I'm hoping RTC would automatically handle files where one or the other (but not both) have changed - but collisions would need to be viewed so I can make sure they are handled correctly.

If you have delivered all your change sets in your repo workspace, then you can import the files into the existing project. Then, when you check in those changes, you should be able to see any changes. One tip to avoid excessive changes, is to use the Eclipse or RAD source format (CTRL+SHIFT+F). Use that to standardize the original code first. Then import, and format the new code. Check in the code, and see if you have any changes. It should only show you changes that actually have real differences (not just whitespace).

Related

Perforce Streams: Selective Copy up to Main

We utilize streams to manage our code in Perforce. We are having issues when efforts are moved out to later releases as part of our controls requires that we have a valid/approved artifact tied to a release before we copy up to the main stream and proceed to cut the release stream.
In Perforce when you are copying code up from a development stream to the main stream is there a way to deselect change lists? When I attempt it, it appears I can deselect specific change lists, usually the last few added, but Perforce seems to not allow certain lists to be deselected, I am guessing if the file changes are included in later changes to the same file.
Is there a good way to selectively move these change sets?
You'll want to use the merge command instead of copy in this case to cherry pick the changes up to main. Copy takes files at a point in time and makes the target look like the source no matter what. Merge will let you pick around changes that aren't ready.

How do you handle documents, images(psd), etc in you repository?

This might be a noob question. but I'm really torned between adding documents to my repository, in this case Mercurial.
by documents i meant, files that doesn't really go into your program. like PSD, doc, xls.
what's the best way to handle those files, or how do you handle your documents.
Take a look at the Largefiles extension that shipped with Mercurial 2.0 (with bugfixes since). It's designed to treat files that are binary and update rarely in a different, more efficient way.
Basically it stores those files without trying to compute diffs between versions, and anybody cloning the repo just gets the versions they need, and not all the history. This leads to faster cloning / pulling, but updates may need a connection to the remote repository to read versions of files into the local cache.
I toss them in my repository. It's nice to track changes of them and see old revisions anyway. I can see old revisions of a design document or see what the previous art was for an asset (maybe a graphic designer removed the alpha channel and he/she wasn't supposed to). Throw it in there. If it doesn't change, it's not taking up any more space with a good source control system than storing it outside of source control.

How to prevent Mercurial commits/pushes of certain files?

At a point in our development process we send all *.resx files to a translator. The translator usually takes a week to send back the files. During this time no one is allowed to add, remove or update any resx file.
How can I configure mercurial to enforce that policy?
Our setup: Each dev works with a local clone of our central repository.
Nice to have:
I'll turn the "policy" on and off every few weeks. So ideally, I'd like something that is easy to configure at one place and that affect all devs.
I'd rather enforce that policy at the local repository level then at the central repository level because if we prevent the "push" on the central repository, it will be harder for the dev to undo the already locally committed changeset.
Thanks
UPDATE:
More info on the translation process:
Merging is not an issue here. The translator does not change the files that we sent to him. We send him a bunch of language neutral .resx (form1.resx) and returns a bunch of language specific resx (form1.FR.resx).
Why prevent adding new resx? Adding a resx occurs when we add a new UI to our application. If we do that after the translation package has been sent, the translator won't know about the new UI and we'll end up with a new UI with no translation.
Why prevent updating resx? If the dev changes a label value from "open" to "close", he has made a very important semantic change. If he does that after the translation package has been sent, we won't get the right translation back.
You cannot stop by people from committing changes to .resx files unless you have control over their desktop machines (using a pretxncommit hook), and even then it's easily bypassed. It's much more normal to put the check on the central server at time of push using a pretxnchangegroup hook, but you're right that they'll have to fix up any changesets and re-push, which is advanced usage. In either case you'd used the AclExtension to enforce the actual restriction.
Here are two alternate ways to go about this that might work out better for you:
Clone your repository at the start of the translation process, warn developers to leave .resx alone for awhile, apply the work of the translators when they're done, and then merge those changes back into the main development repository with a merge command that always gives the incoming changes priority: X . Then use a simple hg log command to find all the changes in .resx that just got overwritten and tell the developers to re-add them. Chide them at this time.
alternately
Make the .resx files a Subrepository of the larger outer repository. Then turn off write access to that resx repository during the forbidden period. Developers will be able to commit in the outer repository but not the inner one, but clones will still get both exactly as they always did.
For what it's worth, everyone else handles this problem with simple merging, .resx is (XML) text, and it merges just fine.
When working with a DVCS it's not always easy to exactly mirror your svn experience, but there's usually a better option anyway.
You could add *.resx to the hgignore file

How can I retrieve only a subdirectory from a Mercurial Repository?

I'm trying to sell our group on using Mercurial as a source repository rather than VSS. In the process of updating our build scripts, I'm running into an issue trying to retrieve files from the Hg repository.
Our builds are automated with NAnt and currently work for local builds or builds from VSS (ie, pull the source as needed from VSS). I'm trying to update them to work with Mercurial as well.
Basically, when I'm working with single files, I don't have any issues since I can just use NAnt's 'get' task (after getting the appropriate revision hash) to retrieve the individual file.
The problem that I'm having is when I need to work with a directory (and subdirectories) of files that aren't at the root of the repository. I can't seem to figure out the proper commands to retrieve/copy a subdirectory from the repository to my 'working' directory for the builds. I've spent basically the whole afternoon trying to figure out how to do this with the mercurial executables (so I can use a NAnt 'exec' task), and have basically hit a wall so I figured I'd try posting here.
Can someone confirm whether this is possible, and provide some suggestions as to how I might be able to do this? I realize that Mercurial tracks changes by files and not directories, but it seems odd to me that this isn't available out of the box (from what I can tell).
If it's just not possible, the only workarounds I see are either maintaining NAnt fileset lists of expected files to work with (ugh!), or cloning the entire repository to a temporary directory and then just copying the files from that source as needed (this feels like a cludge to me).
I realize that I could simply create another repository for the directory that I want to work with, but I'd prefer to not go that route since I think that would increase the complexity of what I'm trying to do by a significant amount (I would have to apply this a large number of times for all of the different libraries that we build..).
Mercurial doesn't let you get only part of a repository. You have to get the whole tree. It's much more whole-repo focused than svn is.
You could try and segment your repository into multiple repos and manage them using the subrepos feature. Then you can pull the subdirectories independently.

What exactly does the word Patch mean when referring to 'submitting a patch'?

What exactly does the word patch mean when referring to 'submitting a patch'?
I've seen this used a lot, especially in the open source world. What what does it mean and what exactly is involved in submitting a patch?
It's a file with a list of differences between the code files that have changed. It's usually in the format generated by doing a diff -u on the two files. Most version control systems allow the easy creation of patches but it's generally in that same format.
This allows the code change to be easily applied to someone else's copy of the source code using the patch command.
For example:
Let's say I have the following code:
<?php
$foo = 0;
?>
and I change it to this:
<?php
$bar = 0;
?>
The patch file might look like this:
Index: test.php
===================================================================
--- test.php (revision 40)
+++ test.php (working copy)
## -3,7 +3,7 ##
<?php
- $foo = 0;
+ $bar= 0;
?>
Richard Jones, a developer at Red Hat, has a nice little primer on submitting code to open source projects which covers making and submitting patches.
A patch is usually a file that contains information how to change something (very often to fix a bug, but could also be an enhancement). There are different kind of patches.
A source code patch contains information how one or multiple source code files need to be modified. You can easily generate them using the diff command and you can apply them using the patch command (on Linux/UNIX systems these commands are standard).
However, there are also binary patches. A binary patch contains information how certain bytes within a binary need to be changed. Binary patches are, of course, rare in the OpenSource world, but in the early days of computers I saw them a lot to modify shipped binaries (usually to work around a bug).
Submitting a patch means you have locally fixed something and now you send the file to someone, so he can apply this patch to his local copy or to a public copy on the web, thus other users can benefit of the fix.
Patches are also often used if you have some source code that almost compiles on a certain platform, but some tiny changes are necessary to really have it compile there. Of course you could take the source, modify it and offer the modified code for download. But what if the original source changes again (e.g. bugs get fixed or small enhancements were added)? Then you had to re-download the source, apply the changes again and offer the new modified version. It's a lot of work to keep your modified source up-to-date. Instead of modifying, you create a diff between the original and your modified copy and store it on your server. If now a user wants to download and compile the app from source, he can first download the latest & greatest version of the original source, then apply your patch (so it will compile) and always has the latest version, without you having to change the patch. A problem will only arise if the original source has been changed exactly in one of the places your patch modifies. In this case the system will refuse to apply the patch and a new patch needs to be made.
A patch is a file containing all of the necessary information to turn the maintainer's source tree in to your own. It's usually created by tools like diff or svn diff or git format-patch.
Traditionally, open-source projects accept submissions from normal schlubs in the form of patches so they don't have to give others commit access to their repositories.
A patch, ususally in the form of a .patch file, is a common flat file format for transmitting the differences between two sets of code files. So if you are working on an open source project, and make code changes to files, and want to submit that to the project owner to be checked in (usually because you don't have checkin rights), you would do so via a patch.
WinMerge has this functionality built in, as do many other tools like TortoiseSVN.
A patch file represents the difference between existing source and source you've modified. It is the primary means of adding features or fixing bugs in many projects.
You create a patch using the diff command (for example).
You can then submit this patch to the development mailing list and if it received well, then a committer will apply the patch (thus automatically applying your changes) and commit the code.
Patches are applied using the patch command.
Generally it implies submitting a unified diff file with the aggregate changeset for a feature. You can read more about patches on Wikipedia. Several version control systems (svn, git, etc.) will create a patch file for you based on a changeset.
1. n. A temporary addition to a piece of code, usually as a quick-and-dirty
remedy to an existing bug or misfeature. A patch may or may not work, and may or may not
eventually be incorporated permanently into the program. Distinguished from a diff
or mod by the fact that a patch is generated by more primitive means than the rest
of the program; the classical examples are instructions modified by using the front
panel switches, and changes made directly to the binary executable of a program
originally written in an HLL. Compare one-line fix.
See the entire definition in the jargon file here
Patch is also used in the act of updating system binaries. Microsoft sends out patches all the time but they aren't source code. They are .msp files that install improved binaries. As with all computer science terms, patch is overloaded.
I've always believed the term meant a bug fix, like a knee patch Mom used to put on your holey jeans.