Open Source tools overview

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Are you planning to start working with open source and are overwhelmed by all the new tools you have to learn ? Here you can find a quick overview about Subversion, Git and Maven.

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Open Source tools overview

  1. 1. 1 The Apache Software Foundation Community Development Open Source Tools Overview Luciano Resende (lresende@apache.org)
  2. 2. Open Source Workshop 2 Topics n  Install development environment tools q  Subversion q  Git q  Maven n  Source Control Repositories q  Subversion q  Git n  Build and Dependency Management q  Maven
  3. 3. Installing development environment tools n  Subversion q  http://subversion.apache.org/packages.html n  Git q  http://git-scm.com/downloads n  Maven q  http://maven.apache.org/download.cgi n  Eclipse q  http://www.eclipse.org/downloads/ Open Source Workshop 3 Also available at: http://10.0.0.3/icfoss Wi-Fi : ICFOSS-ROBOTICS ICFOSS606
  4. 4. SUBVERSION (SVN) 101 Open Source Workshop 4
  5. 5. Subversion n  Centralized source control repository n  Regular project structure q  Trunk – current development q  Branches – parallel development q  Tags – snapshots (e.g. release tags) Open Source Workshop 5
  6. 6. Subversion useful commands •  Checkout source code q  svn co http://www.company.com/repo/project/trunk n  Ex. Svn co http://svn.apache.org/repos/asf/wink/trunk/ wink-svn •  Update current checkout q  svn update •  Check status of current checkout q  svn status n  Check differences q  svn diff q  svn diff >> changes.patch (create a patch with the current diff) n  Rollback changes q  svn revert file q  svn revert * •  Add new file q  svn add file/directory •  Commit files q  svn ci –m”Describe the contents of your commit” Open Source Workshop 6
  7. 7. Subversion hands-on n  Find an ASF project using subversion n  Play with the basic subversion commands Open Source Workshop 7
  8. 8. GIT 101 Open Source Workshop 8
  9. 9. Git n  Distributed source control repository n  Regular project structure q  Trunk – current development q  Branches – parallel development q  Tags – snapshots (e.g. release tags) Open Source Workshop 9
  10. 10. Git useful commands •  Checkout source code q  git clone http://www.company.com/repo/project/trunk n  E.g : git clone git://git.apache.org/wink.git •  Update current checkout q  git pull --rebase •  Check status of current checkout q  git status n  Check differences q  git diff q  git format-patch >> changes.patch (create a patch with the current diff) n  Rollback changes q  git reset –soft / --hard q  git checkout file •  Add new file q  git add file/directory •  Commit files q  git add file // git commit –a –m”Describe the contents of your commit” q  git commit –a –m”Describe the contents of your commit” q  git push q  git svn dcommit for git-svn bridge Open Source Workshop 10
  11. 11. Git branch workflow n  Clone the repository for the first time git clone git://git.apache.org/wink.git n  Update the repository git pull –rebase git svn rebase for git-svn bridge n  Workflow git checkout –b JIRA-101 creates a new branch git commit –a –m”JIRA-101 – My updates” commit all files changed git commit –a –amend updated commit with new changes git rebase master get changes from master git push push changes to remote repo git svn dcommit push changes in case of git-svn bridge git checkout master goes back to master branch n  Updating a branch with changes from master git rebase master Open Source Workshop 11
  12. 12. Git hands-on n  Find an ASF project using GIT n  Play with the basic GIT commands Open Source Workshop 12
  13. 13. MAVEN 101 Open Source Workshop 13
  14. 14. What is Maven n  A Java project management and integration build tool n  Based on the concept of XML Project Object Model (POM) n  Favors convention over configuration q  Project Structure q  Repository Layout q  Etc n  Modular build platform q  Extensible via plugins (a.k.a MOJO’s) Open Source Workshop 14
  15. 15. Maven Build Lifecycle (Phases) Phases n  Validate n  Compile n  Test n  Package n  Install n  Site n  Deploy Plugins + Goals n  Maven-java-plugin:compile n  Maven-test-plugin:test n  Maven-jar-plugin:jar n  <project> … <packaging>jar</packaging> … n  </project> Open Source Workshop 15
  16. 16. Maven Repository n  Repositories n  No more libs in source code n  Public repositories q  Central, etc n  Internal repository (Nexus, Artifactory, etc) q  Proxy repository n  Local repositories n  <project> … <repositories> <repository> <id>central</id> <url>http://repo.internal.company.com:8081/releases</url> </repository> </repositories> … </project> Open Source Workshop 16 Artifactory Internal Repo Public Maven Repos /m2 /repository /org /apache /com /google Internet
  17. 17. Maven Dependency Management <project> … <dependencies> <dependency> <groupId>org.apache.tuscany.sca</groupId> <artifactId>tuscany-binding-rest-runtime</artifactId> <version>2.0-M5</version> <packaging>jar</packaging> </dependency> </dependencies> … </project> http://mirrors.ibiblio.org/pub/mirrors/maven2/org/apache/tuscany/sca/tuscany- binding-rest-runtime/2.0-M5/tuscany-binding-rest-runtime-2.0-M5.jar Open Source Workshop 17
  18. 18. Maven Project Structure n  Project (jar) q  src n  main……………………..Project source code q  Java………………...Java Artifacts q  Resources…………Resources (e.g xsd, composites, etc) n  test................................Test codes (not added to final jar) q  java.........................Test Java Artifacts q  resources………….Test Resources n  Project (webapp) q  src n  main …………………….Project source code q  java ………………..Java Artifacts q  resources ………....Resources (e.g xsd, composites, etc) q  webapp ……………Web related resources (e.g html, jsp, css, etc) §  META-INF §  WEB-INF §  web.xml §  Web resources Open Source Workshop 18
  19. 19. Maven Project Configuration n  Configuration is entered in XML format in a Project Object Model or POM n  Projects are structured in a hierarchy and project configuration is inherited by sub-projects q  If no parent is specified, parent is called “Super” or “Parent POM” Open Source Workshop 19
  20. 20. Maven Project Configuration <project> <parent> <groupId>com.company.application</groupId> <artifactId>parentProject</artifactId> <version>1.0.0-SNAPSHOT</version> <relativePath>../pom.xml</relativePath> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.parent.application</groupId> <artifactId>artifactName</artifactId> <packaging>pom</packaging> <name>artifactName</name> <modules> <module>…</module> <module>…</module> </modules> </project> Modules must map to directory structure Open Source Workshop 20
  21. 21. Maven useful commands n  Build q  mvn clean install n  Build in offline mode q  mvn clean install -o n  Build and force updating/downloading dependencies q  mvn -U clean install n  Build without executing unit tests q  mvn clean install -Dmaven.test.skip=true n  Build and report errors only at the end (fail at end) q  mvn -fae clean install n  Build and don’t report errors (fail never) q  mvn -fn clean install n  Execute only one test case q  mvn -Dtest=ComponentServiceReferenceTestCase Clean is optional, but omitting it might cause unexpected issues. Open Source Workshop 21
  22. 22. Maven useful commands •  Put maven in debug mode q  mvnDebug •  Identify 3rd party dependencies with maven dependency plugin q  mvn dependency:analyze q  mvn dependency:copy-dependencies q  mvn dependency:tree Open Source Workshop 22
  23. 23. Maven with Eclipse Maven Eclipse plugins q  The goal of the Eclipse m2eclipse project is to provide Apache Maven support in the Eclipse IDE, making it easier to edit Maven's pom.xml, run a build from the IDE and much more. For Java developers, the very tight integration with JDT greatly simplifies the consumption of Java artifacts. q  http://download.eclipse.org/technology/m2e/releases Open Source Workshop 23
  24. 24. SUGGESTED HOMEWORK Open Source Workshop 24
  25. 25. Github Project n  Create a github java project q  Create new repository q  Create a maven java project q  Add some business logic q  Add tests to verify your business logic q  Build n  With tests n  Without tests Open Source Workshop 25
  26. 26. Github collaboration n  Provide a patch for your colleague project q  Do a simple change on your colleague project q  Submit a pull request q  Add a bit more change (simulating a update based on feedback) q  Submit a pull request n  Owner should accept pull request and merge changes q  If you can’t find an owner, I will create a simple project and you can use that n  My github account : lresende Open Source Workshop 26

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