Stendhal on Eclipse: Difference between revisions

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{{Navigation for Stendhal Top|Building & Hosting}}
{{Navigation for Stendhal Top|Building & Hosting}}


This guide describes how to setup a development environment in Eclipse for Stendhal.
==First Steps==
<ol>
<li> First of all open the view called Package Explorer.</li>
<li> "New Project..."</li>
<li> "CVS" -> "Project from CVS" </li>
<li> Get stendhal from CVS. (Connection type: pserver, User: anonymous, Password - leave blank, Host:arianne.cvs.sourceforge.net, Repository: /cvsroot/arianne)</li>
<pre>
file-> new -> project -> project-> from cvs
click next


== Get Java ==
check "create new repository"
click next


* If you can play Stendhal, you already have Java and can skip this step.
host : arianne.cvs.sourceforge.net
* If you do not have java installed, please download it https://java.com<br> (if you are on Linux, use your packet manager)
repository path : /cvsroot/arianne
user : anonymous
connection Type: pserver
click next


== Get Node.js ==
check "use an existing module"
click directory: stendhal
click next


* https://nodejs.org (optional: for building & using web client)
checkout as a project configured using the new project wizard
click next


== Get Eclipse==
click finish


* Go to https://www.eclipse.org/downloads/
select a wizard: java project (do not select a simple "general" project!)
* Download: "Eclipse IDE for Java Developers"
project Name: stendhal ( or whatever you like to call it )
* Unzip the download and run Eclipse
make sure in jre a java version 1.5 or higher is selected
* In Eclipse, close the "Welcome" window
click finish
</pre>
<li> Right click on your project folder and select "Properties" in the context menu.</li>
<li> Then select "Java Build Path" on the left side of the dialog box.</li>
<li> Now remove all existing folders from source path and add the two source folders 'src' and 'tests' by clicking on the "Add Folder..." button</li>
<pre>
source folder #1:
stendhal/src
Included:(All)
Excluded:(None)
Native library location: (None)


You can click on the following images to see them in large.
source folder #2:
stendhal/tests
Included:(All)
Excluded:(None)
Native library location: (None)


<gallery>
default output folder: stendhal/bin
File:Eclipse_00.png|On the first run of Eclipse, this "Welcome" window is shown. Please close it.
</pre>
File:Eclipse_00a.png|Typical window layout with the Package Explorer on the left hand side and an empty area for editors in the middle
<li> On the "Libraries" tab: click on the "Add JARs" button and select all the *.jar-files in stendhal/libs</li>
</gallery>
<li> Check the text encoding at Project -> Properties -> Resource -> Text Encoding. Set it to UTF-8 unless it is that already.</li>
Note: If you installed Eclipse in Ubuntu via a package manager, also install: "eclipse-egit"
</ol>

Eclipse should be able to compile the source code now. There could be a little yellow sign (signalling warning messages) before your project folder but there must not be red X (error messages). The package explorer should now display the "src" folder below the root folder with a different icon, the icon is like a small grid.
== New Project from Git ==

In Eclipse:

* Open menu "File -> Import
* In the dialog select: "Git -> Projects from Git" and click "Next".
* Select "Clone URI" and click "Next".
* Fill in the following information:
** '''URI''':
*** GitHub readonly: <code><nowiki>https://github.com/arianne/stendhal.git</nowiki></code><br>(if you have a github account, please go to https://github.com/arianne/stendhal and click on "Fork" to create you own copy of the repository and then use that in Eclipse instead)
*** GitHub read/write (SSH): <code><nowiki>git@github.com:arianne/stendhal.git</nowiki></code>
* The result of the fields are filled in automatically, click "Next"
* On the Branch selection page, keep everything selected and click "Next"
* Under "Destination" choose the directory where you want to download the source code and select "Next".
* Eclipse will now download Stendhal from git, this may take a while
* "Import existing projects" and select "Next"
* "Finish" import of project Stendhal

Click on the screenshots to enlarge them, if you need help with any of the steps:

<gallery>
Eclipse 01.png|Open File | Import
Eclipse 02.png|Import from Git
Eclipse 03.png|Clone URI
Eclipse 04.png|Fill in URI and watch the remaining fields to be filled automatically
Eclipse 05.png|Just click "next" on branch selection
Eclipse 06.png|Just click "next" on destination
Eclipse 07.png|Wait for the download to complete. This may take quite a while
Eclipse 08.png|Import existing project
Eclipse 09.png|Confirm import of project "Stendhal" by clicking finish
</gallery>


==Trouble Shooting==
==Trouble Shooting==
menu Windows | Preferences | Java | Installed JREs
* there should be at least one entry with a valid JAVA_HOME path (make it so so JDK compliance is 5.0 ?)


After completing the import wizard, Eclipse should look like the following screenshot:
==To make it run the server in Debug mode==

[[File:Eclipse_debug_configurations_menu.png|right]]
[[File:Eclipse 10.png]]

There is a project called "stendhal" listed in the Package Explorer view. There may be a tiny yellow triangle in front of the blue project icon. But if you see a red circle or a red exclamation mark, something went wrong. In this case there will be an error in the "Problems" view at the bottom.


== Start StendhalServer ==

* In the toolbar there is the "Debug" button, which looks like a little, green bug. There is a little black arrow on the right side of it.
* In the toolbar there is the "Debug" button, which looks like a little, green bug. There is a little black arrow on the right side of it.
[[File:Eclipse_debug_configurations_menu.png]]
* This will open a menu, please choose "Debug configurations ..." ("Open Debug Dialog..." on older versions)
* This will open a menu, please choose "Debug configurations ..." ("Open Debug Dialog..." on older versions)
* Then in the dialog select "Java Application" and click on the "new" icon in the top left corner.
* Then in the dialog select "Java Application" and click on the "new" icon in the top left corner.
[[File:Eclipse_new_debug_configuration.png]]


<pre> Name: StendhalServer
Name: StendhalServer
Main class: games.stendhal.server.StendhalServer
Main class: games.stendhal.server.StendhalServer


* All other settings ("include system libries", "Stop in main", ... can be left at their default value.
* All other settings ("include system libries", "Stop in main", ... can be left at their default value.
* on the [Arguments] tab: VM arguments: -Xmx128M

* on the [Classpath] tab: click "UserEntries" - button "Advanced" - (*) add folder | OK - and select the "stendhal" project root folder | OK
on the [Arguments] tab:
VM arguments: -Xmx128M

on the [Classpath] tab:
click UserEntries
button "Advanced"
(*) add folder | OK
and select the project root folder | OK
</pre>

* button [Debug]
* button [Debug]

And then the server should be started.
And then the server should be started.


NOTE: On newer Eclipse versions, the [Classpath Entries] are under Dependencies tab.
==To make the client run==

== Start Stendhal Client ==
# Open games.stendhal.client.update.Starter.java in the editor
# Open games.stendhal.client.update.Starter.java in the editor
# Then again the small black arrow on the right side of the green bug. (Or you may also choose to use the "Run" command instead of "Debug" in case you only want to debug the server component.)
# Then again the small black arrow on the right side of the green bug.
# Select "Debug Configurations" (or "Run Configurations...").
# Select "Debug Configurations" (or "Run Configurations...").
# Select Java Application and click the "New" button in upper-left corner.
# Select Java Application and click the "New" button in upper-left corner.
# On the [Classpath] tab select "User Entries" - button "Advanced" - (*) add folder | OK - and select the project root folder. | OK
# On the [Classpath] tab select "User Entries" - button "Advanced" - (*) add folder | OK - and select the project root folder. | OK

yay shiny new client, shiny server


== Making patches ==
== Making patches ==
Line 99: Line 100:


==Running JUnit Tests in Eclipse==
==Running JUnit Tests in Eclipse==

This is an advanced topic. If you make changes to the Java code, it is a good idea to run the automatic test.

Setting up JUnit tests in Eclipse:
Setting up JUnit tests in Eclipse:
# Click the arrow next to either the green "Run" or "Debug" button.
# Click the arrow next to either the green "Run" or "Debug" button.
Line 116: Line 120:
# Under the Stendhal root folder select all the .jar files in libs and press OK.
# Under the Stendhal root folder select all the .jar files in libs and press OK.
# Now press "Apply" to save the configuration or "Run" to save and run it.
# Now press "Apply" to save the configuration or "Run" to save and run it.

==Switching from pserver to extssh==
If you need to switch from anonymous read-only access to read/write, follow these
instructions.
(based on clues at http://blog.maestropublishing.com/changing-cvs-username-and-password-in-an-ecli)

# Window -> Show View -> Other
# Open up CVS, and double click on "CVS Repositories". A new tab will show up, named CVS Repositories
# Right click on the arianne line, and select Properties
# Change Connection Type to extssh
# Set User and Password to your sourceforge user id and password
# Click Apply. Eclipse will take a few minutes to update attributes.

After that, test by trying another CVS Synchronize. The first time, you will probably get a dialog about the server certificate.





Latest revision as of 18:13, 20 June 2023


This guide describes how to setup a development environment in Eclipse for Stendhal.

Get Java

  • If you can play Stendhal, you already have Java and can skip this step.
  • If you do not have java installed, please download it https://java.com
    (if you are on Linux, use your packet manager)

Get Node.js

Get Eclipse

You can click on the following images to see them in large.

  • On the first run of Eclipse, this "Welcome" window is shown. Please close it.
    On the first run of Eclipse, this "Welcome" window is shown. Please close it.
  • Typical window layout with the Package Explorer on the left hand side and an empty area for editors in the middle
    Typical window layout with the Package Explorer on the left hand side and an empty area for editors in the middle

Note: If you installed Eclipse in Ubuntu via a package manager, also install: "eclipse-egit"

New Project from Git

In Eclipse:

  • Open menu "File -> Import
  • In the dialog select: "Git -> Projects from Git" and click "Next".
  • Select "Clone URI" and click "Next".
  • Fill in the following information:
    • URI:
      • GitHub readonly: https://github.com/arianne/stendhal.git
        (if you have a github account, please go to https://github.com/arianne/stendhal and click on "Fork" to create you own copy of the repository and then use that in Eclipse instead)
      • GitHub read/write (SSH): git@github.com:arianne/stendhal.git
  • The result of the fields are filled in automatically, click "Next"
  • On the Branch selection page, keep everything selected and click "Next"
  • Under "Destination" choose the directory where you want to download the source code and select "Next".
  • Eclipse will now download Stendhal from git, this may take a while
  • "Import existing projects" and select "Next"
  • "Finish" import of project Stendhal

Click on the screenshots to enlarge them, if you need help with any of the steps:

  • Import
    Import
  • Import from Git
    Import from Git
  • Clone URI
    Clone URI
  • Fill in URI and watch the remaining fields to be filled automatically
    Fill in URI and watch the remaining fields to be filled automatically
  • Just click "next" on branch selection
    Just click "next" on branch selection
  • Just click "next" on destination
    Just click "next" on destination
  • Wait for the download to complete. This may take quite a while
    Wait for the download to complete. This may take quite a while
  • Import existing project
    Import existing project
  • Confirm import of project "Stendhal" by clicking finish
    Confirm import of project "Stendhal" by clicking finish

Trouble Shooting

After completing the import wizard, Eclipse should look like the following screenshot:

There is a project called "stendhal" listed in the Package Explorer view. There may be a tiny yellow triangle in front of the blue project icon. But if you see a red circle or a red exclamation mark, something went wrong. In this case there will be an error in the "Problems" view at the bottom.


Start StendhalServer

  • In the toolbar there is the "Debug" button, which looks like a little, green bug. There is a little black arrow on the right side of it.

  • This will open a menu, please choose "Debug configurations ..." ("Open Debug Dialog..." on older versions)
  • Then in the dialog select "Java Application" and click on the "new" icon in the top left corner.

Name: StendhalServer
Main class: games.stendhal.server.StendhalServer
  • All other settings ("include system libries", "Stop in main", ... can be left at their default value.
  • on the [Arguments] tab: VM arguments: -Xmx128M
  • on the [Classpath] tab: click "UserEntries" - button "Advanced" - (*) add folder | OK - and select the "stendhal" project root folder | OK
  • button [Debug]

And then the server should be started.

NOTE: On newer Eclipse versions, the [Classpath Entries] are under Dependencies tab.

Start Stendhal Client

  1. Open games.stendhal.client.update.Starter.java in the editor
  2. Then again the small black arrow on the right side of the green bug.
  3. Select "Debug Configurations" (or "Run Configurations...").
  4. Select Java Application and click the "New" button in upper-left corner.
  5. On the [Classpath] tab select "User Entries" - button "Advanced" - (*) add folder | OK - and select the project root folder. | OK

Making patches

If you have modified and tested the code and want to send us a patch, please see How To Create Patch For Stendhal.

Running JUnit Tests in Eclipse

This is an advanced topic. If you make changes to the Java code, it is a good idea to run the automatic test.

Setting up JUnit tests in Eclipse:

  1. Click the arrow next to either the green "Run" or "Debug" button.
  2. Select "Run/Debug Configurations...".
  3. Select "JUnit" in the left column and press the "New launch configuration" at the top of left column.
  4. Give it a unique name, like "Stendhal Tests".
  5. Select "Run all tests in the selected project, package or source folder".
  6. OPTIONAL: (this step simply reduces the number of directories that Eclipse will search in for tests)
    1. Press "Search".
    2. Select "tests" folder under Stendhal root directory and press "OK".
  7. Under "Test runner" select "JUnit 4".
  8. Under "Classpath" tab select "User Entries" and press "Advanced" on the right panel.
    • NOTE: There should already be a folder under "User Entries" with a "(default classpath)" suffix. Do not delete this folder.
  9. Select "Add Folders" and press "OK".
  10. Select the Stendhal root folder and press "OK".
  11. Now click "Add JARs..." on the right panel.
  12. Under the Stendhal root folder select all the .jar files in libs and press OK.
  13. Now press "Apply" to save the configuration or "Run" to save and run it.
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