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GitBlit plugin for Gerrit Code Review

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See how GitBlit has been plugged into Gerrit Code Review as repository viewer. Includes a step-by-step guide on how to clone, build and use GitBlit plugin on Gerrit.

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Plugin Luca Milanesio GerritForge LLP Luca@gerritforge.com http://www.gerritforge.com

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Who's that guy ? Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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Why a different Git front-end ? Large enterprises = different people ! Gerrit "gurus" ? … likes rare GWT UI Git early adopters ? … used to GitWeb Like it new and small ? … gitiles is for you ? Like shiny and simple UX ? GitBlit  Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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Why GitBlit and not others ? just democratic election I guess  Hi all, as Gerrit 2.5 is coming to the +1, that's a great idea, I'd like RC phase (and PlugIns will to use that. soon be a reality), what do you Would be great if this would think of integrating GitBlit as integrate GitBlit in a way so plug-in ? that Gerrit permission settings are respected also by GitBlit. +1, it would be awesome to have a built-in viewer option that respected all the Gerrit perms @James: would you accept contribution to GitBlit to make this plug-in possible ? Of course. Sounds great! Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit UX 1. Twitter Bootstrap CSS + 2. Wicket Web- Framework + 3. Google Charts + 4. JQuery Front-end = COOL UX ! Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit + Gerrit challenge GitBlit Gerrit UX Bootstrap / JQuery GWT CSS Front-end Wicket GWT Git Back-end JGit JGit DB none H2/MySQL/Postgres Injection none Guice License Apache 2.0 Apache 2.0 Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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Problems – Wicket and Rome Wicket and Rome Class loader  Session-based fully featured Web-App  Classes are loaded using the current thread class loader: wicket/src/main/java/org/apache/wicket/application/DefaultClassResolver.java wicket/src/main/java/org/apache/wicket/protocol/http/ContextParamWebApplicationFactory.java wicket/src/main/java/org/apache/wicket/util/resource/locator/ResourceStreamLocator.java wicket/src/main/java/org/apache/wicket/protocol/http/portlet/WicketPortlet.java Gerrit plug-in loader  Sessionless Servlet container  Plug-in = unique shaded jar  URLClassLoader (child of Gerrit ClassLoader) Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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Problems – GitBlit pluggability GitBlit configuration  Configuration based (reference.properties)  Classes instantiated directly wicket/src/com/gitblit/GitBlit.java Gerrit plug-in module  Plug-in loaded and configured through Guice Module  Class instantiated through child Guice Injectors Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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Solutions  Wicket and Rome Option-1: patch-set github.com/lucamilanesio/wicket/commit/4a3f2c1dccf064008f223bb554c90e12c1c3b55d github.com/lucamilanesio/rome/commit/f13a20ae1e1f5df6a5bf4b83e8fb8fae6dda7a13 Options-2: drop wicket and rome wars into $GERRIT_SITE/libs  GitBlit Patch provided and merged to GitBlit master github.com/gitblit/gitblit/commit/85f639aa3eee0b4e02eba20e6a5197b684941544  Gerrit Jetty session manager introduced in Gerrit 2.5 gerrit-review.googlesource.com/#/c/37790/ Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit plugin: clone + build + deploy $ git clone https://gerrit-review.googlesource.com/plugins/gitblit Cloning into 'gitblit'... remote: Counting objects: 37, done remote: Total 37 (delta 5), reused 37 (delta 5) Unpacking objects: 100% (37/37), done. $ cd gitblit && mvn package && cp target/gitblit*jar $GERRIT_SITE/plugins/gitblit.jar [INFO] -------------------------------------------------------------- [INFO] Building Gerrit - GitBlit Plugin 1.0-SNAPSHOT [INFO] --------------------------------------------------------------- [... Some Maven rubbish ...] [INFO] --------------------------------------------------------------- [INFO] BUILD SUCCESS [INFO] --------------------------------------------------------------- Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit in action  Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit as GitWeb replacement From Gerrit 2.6, GitBlit provides an automatic Gerrit init-step $ $ java –jar gerrit.war init -d $GERRIT_SITE [...normal Gerrit init process ...] *** GitBlit Integration *** Do you want to use GitBlit as your GitWeb viewer ? [Y/n]? y Link name [GitBlit]: $ cat $GERRIT_SITE/etc/gerrit.config [...normal Gerrit config ...] [gitweb] type = custom url = plugins/ project = gitblit/summary/${project} revision = gitblit/commit/${project}/${commit} branch = gitblit/log/${project}/${branch} filehistory = gitblit/history/${project}/${branch}/${file} linkname = GitBlit Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit as repo browser in Gerrit Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

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GitBlit plugin: next steps  GitBlit Groovy scripts  Gerrit stream events available as "plug-in hooks"  GitBlit Groovy scripts executed within Gerrit  GitBlit simple access control  Control Gerrit security through GitBlit  Provide Gerrit visibility of GitBlit groups via plug-in To view this slides again: www.slideshare.net/lucamilanesio Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012

More Related Content

GitBlit plugin for Gerrit Code Review

  • 1. Plugin Luca Milanesio GerritForge LLP Luca@gerritforge.com http://www.gerritforge.com
  • 2. Who's that guy ? Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 3. Why a different Git front-end ? Large enterprises = different people ! Gerrit "gurus" ? … likes rare GWT UI Git early adopters ? … used to GitWeb Like it new and small ? … gitiles is for you ? Like shiny and simple UX ? GitBlit  Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 4. Why GitBlit and not others ? just democratic election I guess  Hi all, as Gerrit 2.5 is coming to the +1, that's a great idea, I'd like RC phase (and PlugIns will to use that. soon be a reality), what do you Would be great if this would think of integrating GitBlit as integrate GitBlit in a way so plug-in ? that Gerrit permission settings are respected also by GitBlit. +1, it would be awesome to have a built-in viewer option that respected all the Gerrit perms @James: would you accept contribution to GitBlit to make this plug-in possible ? Of course. Sounds great! Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 5. GitBlit UX 1. Twitter Bootstrap CSS + 2. Wicket Web- Framework + 3. Google Charts + 4. JQuery Front-end = COOL UX ! Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 6. GitBlit + Gerrit challenge GitBlit Gerrit UX Bootstrap / JQuery GWT CSS Front-end Wicket GWT Git Back-end JGit JGit DB none H2/MySQL/Postgres Injection none Guice License Apache 2.0 Apache 2.0 Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 7. Problems – Wicket and Rome Wicket and Rome Class loader  Session-based fully featured Web-App  Classes are loaded using the current thread class loader: wicket/src/main/java/org/apache/wicket/application/DefaultClassResolver.java wicket/src/main/java/org/apache/wicket/protocol/http/ContextParamWebApplicationFactory.java wicket/src/main/java/org/apache/wicket/util/resource/locator/ResourceStreamLocator.java wicket/src/main/java/org/apache/wicket/protocol/http/portlet/WicketPortlet.java Gerrit plug-in loader  Sessionless Servlet container  Plug-in = unique shaded jar  URLClassLoader (child of Gerrit ClassLoader) Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 8. Problems – GitBlit pluggability GitBlit configuration  Configuration based (reference.properties)  Classes instantiated directly wicket/src/com/gitblit/GitBlit.java Gerrit plug-in module  Plug-in loaded and configured through Guice Module  Class instantiated through child Guice Injectors Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 9. Solutions  Wicket and Rome Option-1: patch-set github.com/lucamilanesio/wicket/commit/4a3f2c1dccf064008f223bb554c90e12c1c3b55d github.com/lucamilanesio/rome/commit/f13a20ae1e1f5df6a5bf4b83e8fb8fae6dda7a13 Options-2: drop wicket and rome wars into $GERRIT_SITE/libs  GitBlit Patch provided and merged to GitBlit master github.com/gitblit/gitblit/commit/85f639aa3eee0b4e02eba20e6a5197b684941544  Gerrit Jetty session manager introduced in Gerrit 2.5 gerrit-review.googlesource.com/#/c/37790/ Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 10. GitBlit plugin: clone + build + deploy $ git clone https://gerrit-review.googlesource.com/plugins/gitblit Cloning into 'gitblit'... remote: Counting objects: 37, done remote: Total 37 (delta 5), reused 37 (delta 5) Unpacking objects: 100% (37/37), done. $ cd gitblit && mvn package && cp target/gitblit*jar $GERRIT_SITE/plugins/gitblit.jar [INFO] -------------------------------------------------------------- [INFO] Building Gerrit - GitBlit Plugin 1.0-SNAPSHOT [INFO] --------------------------------------------------------------- [... Some Maven rubbish ...] [INFO] --------------------------------------------------------------- [INFO] BUILD SUCCESS [INFO] --------------------------------------------------------------- Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 11. GitBlit in action  Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 12. GitBlit as GitWeb replacement From Gerrit 2.6, GitBlit provides an automatic Gerrit init-step $ $ java –jar gerrit.war init -d $GERRIT_SITE [...normal Gerrit init process ...] *** GitBlit Integration *** Do you want to use GitBlit as your GitWeb viewer ? [Y/n]? y Link name [GitBlit]: $ cat $GERRIT_SITE/etc/gerrit.config [...normal Gerrit config ...] [gitweb] type = custom url = plugins/ project = gitblit/summary/${project} revision = gitblit/commit/${project}/${commit} branch = gitblit/log/${project}/${branch} filehistory = gitblit/history/${project}/${branch}/${file} linkname = GitBlit Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 13. GitBlit as repo browser in Gerrit Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012
  • 14. GitBlit plugin: next steps  GitBlit Groovy scripts  Gerrit stream events available as "plug-in hooks"  GitBlit Groovy scripts executed within Gerrit  GitBlit simple access control  Control Gerrit security through GitBlit  Provide Gerrit visibility of GitBlit groups via plug-in To view this slides again: www.slideshare.net/lucamilanesio Gerrit GitBlit plugin by Luca Milanesio is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. gerrit User Summit 2012