I have multiple workspaces syncing to different labels for some experiments. How can I know if a specific workspace syncing to which label later?
You can't know for certain, since it's possible for the label to have changed since you synced, it's possible for two labels to have the same contents and be functionally identical, it's possible for individual files to have been synced to independent revisions since the sync to a label, et cetera.
That said, you can do:
p4 sync -n #LABEL
and observe whether any files are reported as being different relative to that label. If you do this for each label you can see which label(s) you're in sync with, or most closely in sync with.
Related
Is it possible to get the total LOC for files in the depot?
I have already tried solutions which check for LOC's for changelists edited by a specific user using
P4 describe -ds
I wish to check the LOC for all the files under the directory without actually importing the files (Irrespective of the user who modified the file)
Also if this is possible wish to sort out these details with the file types.
There isn't a direct way to do this. You can use p4 print, as someone else already suggested, or p4 sizes, which gives you the the size of a file revision in bytes (and you'd have to calculate the difference between subsequent revisions).
I recommend paying special attention to integrations. If your Perforce server employs branches, you'll probably want to discount integrations from your metrics calculation. Only the original change should get credit for adding/modifying lines, pushing that change to another codeline should not.
I am working in a project. We use both clearcase and perforce.
As we are working on differnet builds, In clearcase we create a label for each release. Say for release "X", we create a clearcase case "Label X". Label X is having all the latest files with respect to release "X". When we finish another release say "Y", we create another label say "Label Y". Label "Y" is again having all the files for release "Y". But at any point of time we can go back to "Label X" .It means all the files will be reverted back to "Label X".
Can we do same thing in perforce? Can we create a label in perforce so at any point of time, we can go to that label which will give the files as in that label timeline.
Perforce also provide an interesting guide "Migration Planning Guide: IBM Rational ClearCase to Perforce", and mention that p4 label is not the only alternative:
Label Strategies
Both ClearCase and Perforce provide labels, which identify the versions of files that constitute a baseline. For many ClearCase users, labels are mandatory. Applying labels is time-consuming, often accounting for 30 percent or more of the time associated with creating
stable builds.
In Perforce, labels are just one way of reproducing baselines. Changelists accomplish the same goal in ways that are less taxing on the build process and faster and easier to reference than a label.
Each Perforce check-in generates a unique changelist number that reflects the state of the repository at a point in time. Any changelist can be used to describe the state
of every file in the repository, even though it affects only a small subset of the repository.
This is an oversimplication since a typical config spec is several lines or more.
Branches in Perforce are represented as directories, making it easy to combine branches and changelist numbers to represent a baseline.
Alternately, labels can refer to changelist numbers limited to an identified scope in the server, where the scope is typically a particular branch.
Yes, you can create labels in perforce.
Use p4 label to create a label specification, and then use p4 tag to tag files with a label.
You can learn more about labels in the user guide.
Imagine you have the following setup:
//depot/source/sourcefile.cpp
//depot/build/product.exe
At 8am, you check in sourcefile.cpp (now revision 2, in change list 100). The build machine starts building and at 9am, the build machine checks in product.exe, revision 2 in change list 104. Cool. Sadly, you may not have noticed, but at 8:15, someone checked in revision 3 of sourcefile.cpp in change list 103.
What are your options? If you just record the change list of the source (100) and product (104), you can sync your whole project to source and then sync further the contents of change list 104. This process is somewhat manual - you have to record two numbers and do a two step operation.
You can make a label, but sadly, labels don't allow multiple revisions so you it's not really workable.
Finally, at some point after you check in revision 104, you can create a branch. This is basically a metadata copy of the revisions you are interested in so that you can do a one click sync in the future. You can lock the branch to prevent changes.
p4 integ //depot/source/...#102 //depot/milestone1/source/...
p4 integ //depot/build/...#104 //depot/milestone1/build/...
Geeky details - you can configure files in perforce to hold a limited number of revision - for instance you might only want the last 16 revisions of product.exe. (Change the filetype to +S16). If you (or someone else does this), you the first two procedures will eventually fail because the revision has been deleted due to too many revisions. If you use the branch, your product.exe won't age out.
How do I move a folder to completely different Perforce depot on a completely different server but preserving history and changes?
Splitting and merging portions of Perforce depots from separate servers can be done, but you will need the assistance of Perforce technical support, so contact them!
A substantially simpler solution is to retain the two separate servers, and use a Remote Depot definition so that you can access the files in Server A from client workspaces connected to server B. That way, your users mostly see things as though there was a single server, when in fact there are multiple servers.
You don't really need the help of perforce tech support. If you have administrators, you may need them to set up a target depot and/or provide access, but the basic task is performed using functions available to the general user. Here's what I would do (in a nutshell): If you open a P4V session and select the submitted changelists tab, you can filter this set to show only the changes that relate to the section you want to move. This is the change set you will duplicate on the new depot (or even server) that you want to populate. The idea is that you are unraveling the archive files on one side and winding them up in the identical way at the destination. So the process is simply (1) syncing to the first changelist, (2) integrating that set across to the new location, (3) checking that set in, and (4) repeat for all subsequent changelists in order until done. Obviously this can be scripted. I am currently in the process of working a script up in python, but any decent scripting language with Perforce function libraries will work. A couple of complications: The changelists will be sequentially the same as the originals, but the original times will not be preserved - they will be "current". And of course if there are labels, you'll need to map that out in the new location if you want them preserved.
After deleting my Svn repo by accident the other day I wanted to try something else and I have chosen Perforce as my current versioning tool testing ground. It is going great and I am liking what am seeing in Perforce.
Here is my problem. I have submitted my files to my Perforce server and then used my client pcs to grab those projects from the master Perforce server. Now all works great except that I realized that it is possible to use more than a single "depot" in Perforce, and it makes sense to me that I should just move some of those projects to another depot fpr the sake of organization and and maybe for security reasons inn case.
I have been looking for some answers, and I have found couple of them however I am unable to produce any intended results thus I am looking for some expert advice here.
One of the pages I have tried is this one
http://kb.perforce.com/article/24/renaming-depot-directories
Seems to offer a solution, however I have not been able to move files from one depot to another depot that is on the same server process. The examples in the page works fine for moving some folder to a folder in the same depot. The example seems to demonstrate moving to another folder under the same depot.
So I am looking for a reasonable and safe way to move my master Perforce depot folders to another depot that is on the same server, and naturally without loosing any work.
Here is what I am wanting
-- Current
//Depot-A
-->folder1
-->folder2
-- I want
//Depot-A
-->folder1
//Depot-B
-->folder2
thanks
Moving files between different depots is no different than moving files between folders within the same depot, with the exception that the target depot must already exist. Using your example, and assuming "Depot-B" doesn't exist yet, to move "folder2" from "Depot-A" to "Depot-B", you would simply do this:
p4 depot Depot-B
p4 edit //Depot-A/folder2/...
p4 move //Depot-A/folder2/... //Depot-B/folder2/...
p4 submit
Here's what I would do (in a nutshell): If you open a P4V session and select the submitted changelists tab, you can filter this set to show only the changes that relate to the section you want to move. This is the change set you will duplicate on the new depot (or even server) that you want to populate. The idea is that you are unraveling the archive files on one side and winding them up in the identical way at the destination. So the process is simply (1) syncing to the first changelist, (2) integrating that set across to the new location, (3) checking that set in, and (4) proceed to the next changelist. Obviously this can be scripted. I am currently in the process of working a script up in python, but any decent scripting language with Perforce function libraries will work. A couple of complications: The changelists will be sequentially the same as the originals, but the original times will not - they will be "current". And of course if there are labels, you'll need to map that out in the new location if you want them preserved.
I don't think additional depots add much in the way of security. Multiple depot scenarios primarily arise in very large installation.
The primary benefit of additional depots is that you can gain more control over the disk space layout of your server, for example if your repository is too large to fit onto a single filesystem and you need to expand it to use multiple filesystems. A secondary reason to create additional depots is if you have to have depots of specialized types; for example if you wish to create a Streams depot to use the Perforce Streams feature.
For a scenario such as the one you describe, having all your files under Depot A is probably fine for the foreseeable future.
I'm new at using Perforce and I am faced with a dilemma. I am working on two different projects and I'm trying to figure out if there is any way to separate the revision numbers between them.
The setup is something like this:
Depot 1 stores Project 1 and I use Workspace 1 to work on it
Depot 2 stores Project 2 and I use Workspace 2 to work on it
However, they don't have separate changelist numbers (when looking under history) and this is a little confusing (working with different people on them as well). The same revision number goes up whenever I submit from either of the projects.
Is there any way to have separate the revision counters for the two projects?
Edit: On closer examination, the revisions are separate for the actual files, is this an issue with how Perforce shows the changelist(?) number when switching between depots?
The files in the different projects each have their own history, and each file has its own revision numbers, while there are also repository-wide ways to refer to instants of time in the overall repository, such as by date and by change number.
Try looking at 'p4 help files', 'p4 help revisions' and 'p4 help filelog' to get an introduction to the various techniques.
Also install P4V and get comfortable with using tools like Time-Lapse View, the Revision Graph, and Folder Diff, as these are very important when comparing different work among different projects in your repository.
Lastly, labels can help you associate logical mnemonic names with particular sets of revisions, so look into 'p4 help label' and 'p4 help tag'.