How to make a haskell module using EclipseFP? - eclipse

This may be a dumb question, but I am having trouble creating a haskell module in eclipsefp. I can open the HaskellModule wizard but if I click browse next to source folder there is nothing except my project. My project has folders on it but they do not appear on the dropdown.

You need to define what source folders are in the Cabal file for your project. By default this may be the root folder, this is why you only see your project. In the cabal file say that your source folders are some of your sub folders and you should see them available in the wizard.
Bu default a new EclipseFP project uses src as a source folder, not the root.

Related

I need Netbeans help. NO project's -src node appears so no source files--only -Libraries node shows

I hope it's OK to ask this here. Netbeans forums isn't responding. If not, I'll delete this or ask for it to be deleted. I'm desperate so I'll face the wrath, if any.
I moved my Netbeans projects folder from one directory node to another to make backing up all my stuff easier. BAD MOVE.
Now when I open a project using Files | Open project (ctrl-shift-O) NO source files appear because there is no "+Source Packages" node to expand.
It looks like this for all projects, e.g. one named GBL:
Projects
-GBL
+Libraries
It doesn't look like this anymore:
Projects
-GBL
+Source Packages (How do I get this back?)
+Libraries
The Netbeans Properties for each project shows me the path it's using. Windows 7 Explorer shows me that the src, build, and nbproject folders contain files and ALL the source files are in the src folder for that path.
What have I done and more importantly what should I do to get back to being able to open a project normally?
(I've tried recreating the original Netbeans folder and using Windows Explorer to copy an entire project folder into it but: same result--all I see is the Libraries node under the project's name node.)
I just tried to Clean (and also Build) to see what would happen. Error:
ant -f C:\\Users\\Dov\\Documents\\NetBeansProjects\\BasicShirt -Dnb.internal.action.name=build jar
C:\Users\Dov\Documents\NetBeansProjects\BasicShirt\nbproject\build-impl.xml:[u]231[/u]:
Must set src.dir
I just Set Configuration by right-clicking the project's name and provided a path to the src folder.
NOW I SEE MY SOURCE FILES BUT NOW THIS line in the .xml file is flagged with similar message:
<fail unless="[u][b]test[/b][/u].src.dir">Must set test.src.dir</fail>
NOW what do I do? (Netbeans 7.4.)
If I could get rid of the 7.4 automatic creation of +Test Packages, I might be OK.
If you can help, I'd be very happy.
(I'm considering re-installing 7.3 if available or removing and reinstalling 7.4 and try to avoid the "testing" requirement, but there goes all my many tweaks of 7.4.)
Well, after considerable frustration with the problem, I solved it, essentially.
It's here, in total. My synopsis plus how it helped me follows. In short, I had to set up a new java project based on existing sources using the New Project Wiz and simply direct Netbeans to the sources.
File > New Project
Choose Java Project with Existing Sources.
Type a (new) project name and ...
... make the Project Folder contains the path to where you want the new project to be stored. (For me, this is the folder where Netbeans has been able to find my sources.)
Click Next for the Existing Sources page of the wizard and ...
5a. ... in the Source Packages Folder pane, click Add Folder and ...
5b. ... navigate to your sources and select the source root folder.
Clicking Next goes to the Includes/Excludes pane, which I didn't need to use.

Eclipse Package Declaration Work Around?

The team in which I'm working doesn't use eclipse and wants the src folder to be setup a certain way. I, on the other hand, am using eclipse. They would like the src folder to have, for example, the following structure: src/main/java/com/* However, they would like package declarations to only have com.* in them. If I go to project->properties and in the source tab remove the src folder as a source folder and then _only add the com.* folder as part of the source_ it will show com.* as a package, but I still have to add the whole path from src down in the .java files. Here's an example of what I have to do in order for eclipse to recognize the packages:
package main.java.com.parser;
And what the team wants is to have main and java just be a folder so the package declaration would just be:
package com.parser;
So although the file structure would still be src/main/java/com/parser, the package name would be as stated in the later example.
Is there a way to do this in eclipse? I've seen some people asking similar questions on here, but they seem to have no concern that the whole path must be part of the package declaration.
I would much prefer not to do this this way, but no one else is using eclipse on this project.
Thanks for any help in advance.
In the Package Explorer, right click the src folder and select Build Path > Remove from Build Path
Then find the src/main/java folder, right click java and select Build Path > Use as Source Folder
Basically this tell eclipse that java is the folder which contains the packages and source files.
P.S. This is a very normal project setup for building with Maven. If you download the m2e (Maven to Eclipse) plugins and choose to create a Maven Project (or import from the pom.xml) then Eclipse will automatically know how to correctly locate the source folder.

How to make an existing directory into an eclipse project

I have a project I am working on. I have decided to try working with it in Eclipse. There is already a directory, under version control where all the code resides. I am having a rather strange problem. I cannot find any way to just start using an existing code directory as an eclipse project. All I can find is how to import existing source into a new project or check out source from version control into a new project. How do I make an existing directory into a project?
My project is a Django web app if it is any help
In the New Java Project wizard, uncheck the checkbox that says Use default location and the use the Browse button to find your directory.
It is pretty easy to do. Go to File->New-> Project. In the Project wizard, choose the type of project you want and then be sure to unclick the 'Use default location` checkbox. Browse for your folder in the widget that then becomes enabled. Click finish after that.
Alternatively, you could create a brand new project workspace in a new location. Then, assuming Java as your project type, you can open up your project properties and add as a source folder your existing directory. To do this, use the 'Link Source' button on the Java Build Path -> Source tab of your Project Properties dialog.
My Method:
I clone this file to new project directory , and rename Project-Name to my project name, after that i import new files and directory from Eclips
File Name: .project ( Use Notepad for make this file...select Save as type to All Files (*.*) and write file name like: .project )
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Project-Name</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
</buildSpec>
<natures>
</natures>
</projectDescription>
Hope this link answers the original question of this thread.
http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2Ftasks%2Ftasks-45.htm
Creating linked resources
Folders and files can be linked to locations in the file system outside of the project's location. These special folders and files are called linked resources.
To create a linked folder:
In one of the navigation views, right-click the project or folder where you want to create the linked folder.
From the pop-up menu, select command link New > Folder.
Specify the name of the folder as it will appear in the workbench. This name can be different from the name of the folder in the file system.
Click Advanced.
Check Link to alternate location (Linked Folder).
Enter a file system path, or click Browse to select a folder in the file system.
Click Finish.
Probably not the way most people would go about this, but I like all of my eclipse projects in one place but don't necessarily have my source in my workspace directory. Maybe there is a built in way to "symlink" in eclipse, but I sometimes end up with the project folder in the workspace, with the "src" symlinked to the actual source directory somewhere totally different. That's my personal preference anyway. If you too are on a *nix machine a simple
ln -s /path/to/source src
will do from your project directory.
You know, it is not so simple question. Depending on your project type (jar, web module, ear and so on) different structure and configuration files are used by eclipse. So the first really interesting question is that what is your project type? The basic solution after it to create a new project, and define the directory of your source code as project root. Then you will see what else to change (for example source path settings, classpath and so on). So how does your project look like? Can you proide structure tree of folders?
Since you are using Django you should first set up PyDev in Eclipse. You can install it from the market. Then you want to configure the PyDev Python interpreters to find your installation of Django (http://pydev.org/manual_101_interpreter.html). Make sure to provide the explicit path to the Django folder if your Django is not installed in the default location.
Once these things are ready you can select File > New > Other, then select PyDev Django Project from the PyDev sub directory.
Click next and here is the sweet part: Uncheck 'Use default' (as previously stated) and then find your Django project directory. Be sure to select the right project folder (ie: the folder that contains manage.py). When you have the right folder selected Eclipse/PyDev will recognize that a project already exists and make mention that it will use those files. Click Finish.
Then there is a DB form that asks about your DB settings. If you already have a settings.py file then this seems to make no changes (as it should not). So fill it in or don't. But this is the last step.
Then you should be able to view and use your existing project in Eclipse!
I just created a pom.xml by hand and imported the project as an existing Maven project in Eclipse. It even works for nested projects without problems.
Use "import - existing projects into workspace". This works for my case.
Right click on a project -> Properties.
Open project location in explorer, there's a little icon next to path.
Put your folder/file structure in there and refresh the project in eclipse.

setting source classpath in eclipse with stupid project structure

What do you guys do, when you have huge project built with ant for instance, where the source folders are right bellow the root project folder, for building classpath from source files ?
Putting entire project as a source folder is nonsense.
Putting separate folders as source folders can't be done if they are part of the package hierarchy and the only thing I could think of, is to copy the source folders into a separate folder and add it then as source folder which is weird but I don't know how else to do it.
Having to duplicate sources just because of the eclipse way of making classpath and also because of somebody doing stupid project structure
It's really pain in the ass...because the ant scripts are written for this structure.
Even if it was just one folder, it's a problem anyway. There must be included the upper folder to the source classpath which means it is included with all the crap around and also it means that package explorer is flooded with the packages.
example:
Instead of /project/src/java/utils where we can put src folder into source classpath...
there is project/java/utils + lot of crap like /project/docs is in the project as well.
The trick is:
An Eclipse project root directory is defined by where the .project and .classpath are.
Two options here:
Those Eclipse project files are located in the workspace (and the 'project', the one with 'java/utils' inside, is not)
Then you can make a linked folder within the Eclipse project to reference 'project', calling that linked folder as 'src', using it as your source folder.
The ant script remains right where it originally is (in the 'project' directory, along with all the other sub-directories)
Those Eclipse project files are located directly within the 'project' directory (along with 'java' and 'docs': don't.
Delete that Eclipse project (not its content, only its definition, that will only remove the .eclipse and the .classpath), and recreate anywhere else.
Then go back to 1.
For each source folder in eclipse you can choose which subfolders of it you want to include or exclude as a source folder (you can also use patterns). If I understand correctly, in your situation you can add the project root folder as a source folder and include only those folders that contain source. So in your example only "java" would be included.

Help me understand Eclipse's Java Build Path

I have been moving my Java projects from Jdeveloper over to Eclipse whenever I have to go back and make a change (I only work with Java projects sparingly).
Everytime I try to create a project in Eclipse (3.3.2) I spend quite some time trying to figure out the proper way to configure the source directories in the Java build path dialog.
The biggest problem I'm having is getting the source directories to match up with the package specified in the source files. For Example my project looks like this:
MyProject
DevelopmentBuilds
MainSRC
The MainSRC directory is also the "Root" package so my classes would be defined as:
package MainSRC.Sub1;
If I set my included directory to blank, the files compile but with many errors because the Packages are not in the right place.
How do I tell eclipse to start at MainSRC for the compilation rather than the children of MainSRC?
Or, should I the path up with one src folder with MainSRC as subfolder?
I basically don't understand how this works.
you need to set MainSRC as a 'Source Folder'.
Apparently, you project root are set as Source Folder.
Enter in project properties:
. Right click over your Project root, and select Properties
. Choose Java Build Path
. Remove all source folders
. Click 'Add Folder'
. Select 'MainSRC'
. Click Ok and Ok
Now, your MainSRC are a Source Folder. Some error occurs inside source files. For agile process, right click over package 'Sub1', and press F2. Rename your package for a new, then all your source files will be put in the correct new package.
[]'s,
And Past
You would need to set the source directory to the root MyProject directory. You would have to tell Eclipse to exclude the other directories (such as DevelopmentBuilds) as they are not source code.
You might find you're better off conforming to Eclipse's expectations and creating a source folder which contains your main package folder.