Eclipse cleanup - what are the ".index" files - can I safely delete them? - eclipse

Trying to reduce the size of my (DB synced) workspace - realized that the folder
${workspace_loc}\.metadata\.plugins\org.eclipse.jdt.core
was taking ~35 Mbytes - the contents of the folder are .index files (which take the most space) and some others (which are a couple Kb worth) :
[0-9]*\.index
externalLibsTimeStamps
indexNamesMap.txt
invalidArchivesCache
javaLikeNames.txt
nonChainingJarsCache
participantsIndexNames.txt
savedIndexNames.txt
variablesAndContainers.dat
I can't seem to be able to find docs on those. Can I safely delete them ? Can you point me to some docs on the JDT plugin folders/files contained in ${workspace_location}\.metadata\ directory ?
Is there any way via the gui to clean up the caches (preferably periodically) ?
PS : I 'm on Kepler if this makes a difference
PS2 : links to docs may be links to code comments and such

Yes, you can safely delete them, but it is not very useful.
According to an answer to How would you access Eclipse JDT index?, these files are the class index used when you "Open Type..." (in Refactor>Open Type... or via Ctrl+Shift+T). So if you delete them, next time you want to open a class using "Open Type..." the classes will be reindexed.
Therefore, deleting it for the sake of saving space has little sense, as it will be re-created. Deleting is however useful if you think you have something messed up in your index, it is a way to update it, as the refered answer suggests.

Related

Merging two MS Access Forms with Git

I have two .mdb files with one being a copy of the other. When there are made changes to the original mdb i want to merge them into my copy, which itself may have changed meanwhile.
As I require to use access 2002 Version Theres a lack of helpful plugins but Id be fine with Just using SaveAsText and LoadFromText Methods.
The Problem is - when i change the file i generated with SaveAsText, the checksum at the top of the file does Not Match the Content anymore and Access throws an Error 3011 when I Try to do LoadFromText.
Does anyone know about a way to work around this issue?

Eclipse Plugin Development: Adding items to a working set with the path of the item?

Hello,
I'm an eclipse plugin development newbie looking for pointers to get me started on a particular project.
I am trying to build an eclipse plugin that will automatically construct a working set from a text file that simply consists of a list of file path names. The files/items need not share any parent directories. The rough idea is represented in the following diagram:
I am not asking for the solution to this task. That's the over-arching goal. To achieve that goal, I want to conquer some smaller goals first.
With that in mind, here's the smaller goal I'm currently trying to tackle:
In Eclipse, how can I prompt the user for a single file's path, and then add that file to an existing working set?
I'm not sure where to start. Should I work directly off of the existing org.eclipse.ui.workingSets extension point? Or should I use a collection of other extension points? How do I convert strings into something that can be added to a working set? Do I write code that directly modifies the workingsets.xml file?
Even with a much simpler goal, I still feel quite overwhelmed with the vastness of eclipse extension options. There are probably many ways to go about implementing something like this, but I just need one to get started.
Thanks a bunch!
To manipulate working sets you use the working set manager interface IWorkingSetManager. Get this with:
IWorkingSetManager manager = PlatformUI.getWorkbench().getWorkingSetManager();
From this you can get a particular working by name with:
IWorkingSet workingSet = manager.getWorkingSet("name");
The contents of a working set is an array of IAdaptable objects:
IAdaptable [] contents = workingSet.getElements();
You add to the contents by adding to this array and setting the contents:
IAdaptable [] newContents
.... get new array with old contents + new contents
workingSet.setElements(newContents);
A lot of Eclipse objects implement IAdaptable, for a file in the workspace you would use IFile. You can use dialogs such as ResourceSelectionDialog to select resources from the workspace.

How to exclude a directory in Stream mapping in p4v

I'm using the visual client for perforce and I want to exclude a directory from the workspace. Before streams, I would just navigate to my workspace, find the folder in the tree, and exclude it (and I've found this solution in a number of other related questions I've found). However, now that I am using a stream, it won't let me do this, i have to edit the stream mapping apparently.
So I tried to add this line to the remapped box when editing the stream:
-//NumberPlus/current/Library/... //nplus-mainline/current/Library/
However I just get an error:
Error in stream specification.
Error detected at line 24
Null directory (//) not allowed in '-//NumberPlus/current/Library/...'.
EDIT: I'm in Windows 8.1, for clarification.
If the folder you want to exclude is specific to your machine, setting P4IGNORE locally is the easiest way to exclude it from being added to the depot.
http://www.perforce.com/blog/120214/new-20121-p4ignore
You'd set P4IGNORE to some name like "p4ignore.txt", create a file with that name, and add "Libraries" to it -- subsequent "p4 add" commands will skip over paths found in the P4IGNORE file, so those files will never get added to the depot.
If this is something that's going to be common to all workspaces of this stream (e.g. it's a build artifact that everyone is going to generate and nobody is supposed to check in), what you want to do is add an "exclude" to the stream's Paths (this will exclude it from both branch views and client views generated by that stream). E.g.:
Paths:
share ...
exclude Libraries/...
The "exclude Libraries/..." is basically the same thing as the exclusion line you would add to the client view, except you specify it as a relative path, you don't need to specify both sides of the mapping, and the "-" is implied by the "exclude" type. The "remap" type is if you want to keep those files but in a different depot location, which doesn't sound applicable here.
More information on defining stream views:
http://www.perforce.com/perforce/doc.current/manuals/p4v/streams_views.html
You can't just edit the mappings for your client workspace if it is switched to a particular stream. The whole point of streams is that your workspace mapping is directly generated from the stream definition. So that's a feature.
It's not totally clear whether
you don't want the directory in the stream at all, or
it's valid to have the directory in the stream, but you don't want to sync it to your workstation, or
you want the directory sync'd to your workstation, but you want the directory to have different contents (say, from some other stream which has a different version of the library.
However, for all of these situations, I suspect the best path forward is to define a new child stream of your current stream.
You will want to define the path mappings using the "share", "exclude", "isolate", and "import" mapping types.
For example, if you just didn't want the Library/... directory at all, you'd "exclude" it from your parent.
Then that stream simply won't have that directory, and it (of course) won't be on your workstation when you sync to the stream, either.
If you wanted to have a different copy of the code in the Library/... directory, so that it became a point of intentional divergence from the parent, you'd "isolate" it from your parent to submit your own custom version, or "import" it from another stream to use that stream's Library/... directory instead.
In either case, the directory would be part of the stream, and would be sync'd to your workstation, but the contents of that directory would differ from the contents that are used in the parent stream (the exact way in which they'd differ is under your control, as you define the stream accordingly).
Documentation and some examples are here: http://www.perforce.com/perforce/doc.current/manuals/p4v/streams_views.html
and here:
http://www.perforce.com/sites/default/files/pdf/Streams-ebook.pdf
I believe I have solved this. To be clear, I wanted the folder to be completely ignored by version control. I'm using p4connect with Unity and it keeps wanting to include unnecessary stuff in my depot.
All I had to do was add this line to my parent stream in the Paths box:
exclude current/Library/...

What do I do when MorphX won't let me check in?

When I go to check something into MorphX VCS right now, I get the following message:
Cannot create a record in SysVersionControlMorphXRevisionTable (SysVersionControlMorphXRevisionTable).
The record already exists.
With things that have already been checked out once, I've been able to resolve this with a get latest and then a new checkout/check in. However, when it comes to doing an Add, I'm completely stuck. Is there a resolution to this or have we completely borked our VCS?
Note: this error is only given when we try to check in from a development project. Checking in directly on the AOT does not give this issue.
Just look at the table SysVersionControlMorphXRevisionTable (in SQL if you can't access) and see what the duplicate record could be. The unique index is ItemPath and Version. I doubt you'll see anything here though.
It's most likely an issue with the call in this method \Data Dictionary\Tables\SysVersionControlMorphXRevisionTable\Methods\latestVersionNumber where it's trying to get the current highest revision and is being called by \Data Dictionary\Tables\SysVersionControlMorphXRevisionTable\Methods\create.
Put a breakpoint in the create method line #48 and see what revision.Version is, and before the insert, check in SQL if the ItemPath/Version already exists in SQL.
I'd guess it's probably a server/client-caching issue. To resolve, refresh all of your client caches under Tools>Caches. If this doesn't resolve, and it's a good idea to do anyway, copy these menu items:
\Menu Items\Action\SysFlushAOD
\Menu Items\Action\SysFlushData
\Menu Items\Action\SysFlushDictionary
\Menu Items\Action\SysFlushReportServer
To a new menu item and change the property RunOn = Server. Then run these and it'll flush your server caches. If this still doesn't work, try restarting the AOS.
If this doesn't work, your users application user cache files might be corrupt. Close your client and delete the *.auc and *.kti files in %LocalAppData% folder (Typically C:\Users\[user]\AppData\Local) and reopen your client.
In the environment you are using, have you restored a copy of another database somewhat recently?
Edit: Now knowing that you did a DB restore, there is a good chance your GLOBALGUID was reused and/or is causing caching issues. See here for more info about how/why this happens.
You should probably stop your AOS and run these SQL commands:
UPDATE SYSSQMSETTINGS SET GLOBALGUID = '00000000-0000-0000-0000-000000000000'
DELETE FROM SYSCLIENTSESSIONS
DELETE FROM SYSSERVERSESSIONS
Are/were you also having issues with batches running? (Somewhat related, but I'm mainly just curious on this question)

list elements by activity

I'm working on automated builds and need to be able to list elements that were worked on under particular activities. I'm new to ClearCase so I apologise for naiivety ...
My downstream build process works fine and I now need to populate a 'pre-build' area by identifying the (checked-in) files associated with one or more activities, labels etc (in fact any combination the change/release manager wants) by listing the candidate files for a build and then copying them from the M: drive (Windows). We are using CC 7.1 with a back end on AIX and Win XP Pro desktops. We'll use ccperl to drive the find+copy process.
I have battled with 'find' to no avail - can someone lend a hand? All help gratefully received.
Cliff.
For "label" (I suppose "UCM Baselines" since you mention "activities", which exist only with UCM):
The easiest way would be to configure a config spec for a dynamic view:
element * MY_BASELINE
in order to quickly access the right files.
For activities, you could (if there is not too much files involved), list the exact versions of each activities you want:
cleartool descr -l activity:my_actity#\pvob
and parse the result to grep/awk only what you need.
You need only to do this within a dynamic view (any dynamic view): the activity will contain a list of extended pathnames, meaning you will be able to access and copy each version through that myFile##/main/myBranch/myVersion path.