Modified: maven/website/content/archives/maven-2.x/maven-2.1-architectural-goals.html ============================================================================== --- maven/website/content/archives/maven-2.x/maven-2.1-architectural-goals.html (original) +++ maven/website/content/archives/maven-2.x/maven-2.1-architectural-goals.html Sat May 11 11:53:23 2024 @@ -2,14 +2,14 @@ <!-- - | Generated by Apache Maven Doxia Site Renderer 2.0.0-M10 from content/apt/archives/maven-2.x/maven-2.1-architectural-goals.apt at 2024-05-11 + | Generated by Apache Maven Doxia Site Renderer 2.0.0-M18 from content/apt/archives/maven-2.x/maven-2.1-architectural-goals.apt at 2024-05-11 | Rendered using Apache Maven Fluido Skin 2.0.0-M6 --> <html xmlns="http://www.w3.org/1999/xhtml"; lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> - <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M10" /> + <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M18" /> <title>Maven</title> <link rel="stylesheet" href="../../css/apache-maven-fluido-2.0.0-M6.min.css" /> <link rel="stylesheet" href="../../css/site.css" /> @@ -37,8 +37,10 @@ <div class="container-fluid"> <header> <div id="banner"> - <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><img src="../../images/apache-maven-project.png" alt="Apache Maven Site" style="" /></a></div> - <div class="pull-right"><a href="../.././" id="bannerRight"><img src="../../images/maven-logo-black-on-white.png" alt="" style="" /></a></div> + <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><h1>Apache Maven Site</h1> +</a></div> + <div class="pull-right"><a href="../.././" id="bannerRight"><h1>$esc.xml( $banner.name )</h1> +</a></div> <div class="clear"><hr/></div> </div> @@ -127,71 +129,71 @@ </div> </header> <main id="bodyColumn" class="span10" > -<section> -<h1>h1. Maven 2.1 -- Jason van Zyl</h1></section><section> -<h1>Discussion: need some answers to these before even pushing this to the list TODO: Jesse and Greg spent a lot of time getting the async SSL working so a little description this work would be useful TODO: architecture document about Mercury transport as the async HTTP/DAV client TODO: example of user facing API for Mercury TODO: architecture document and spec for mercury (largely in the wiki) TODO: example of user facing API for maven-shared-model TODO: architecture document on maven itself, plugin manager, lifecycle executor, profile construction TODO: check with kenney to see if his work survived in substituting components or if it's his work that's actually making it work</h1></section><section> -<h1>Technical Preparation: not necessary before discussions can start but helpful to help guide how we concretely determine backward compat TODO: get an explanation of the process Arnaud and Benjamin have for plugins. I started by capturing the log TODO: document standard setup for Hudson we have so people can see the results of testing TODO: setup hudson with emma for code coverage and ask VELO to help us setup coverage for integration tests</h1></section><section> -<h1>h2. Architectural Goals</h1></section><section> -<h1>h3. Backward Compatibility</h1></section><section> -<h1>We must ensure that plugins and reports written against the Maven 2.0.x APIs remain to work in 2.1. We don't want people to have to rewrite their plugins. There are several plugins that are using the current artifact resolution code that will not be supported (please see the Mercury section below). The ones that are in our control we can port over to use Mercury, and external users will have to deal with the major version change. Most people will not be affected and Mercury will be a far better solution.</h1></section><section> -<h1>We must also ensure that POMs of version 4.0.0 are supported in 2.1.x along with the behavior currently experienced. We are relying heavily on our integrations tests right now but as we move forward the work that Shane is doing on the project builder with maven-shared-model will help us to accommodate different versions of a POM, and different formats we decide to support. The maven-shared-model code has no limitation to formats of XML, or any of format like YAML, script, or anything else anyone can dream up. These implementations may find use outside of Maven. For example someone might build something with the Maven Embedder, JRuby, and Mercury to create a JRuby-based system. The same could be done for Groovy, or Intercal.</h1></section><section> -<h1>h2. Plugin and Extension Loading</h1></section><section> -<h1>Maven's mechanisms for loading plugins and build extensions has been refactored. You can find more information in the [Maven 2.1 Plugin and Extension Loading Design] document.</h1></section><section> -<h1>h2. Lifecycle</h1></section><section> -<h1>h3. Aggregator Mojo Handling</h1></section><section> -<h1>Aggregator mojos bound to the lifecycle have been deprecated. This practice can produce some very strange results, and isn't really the right solution for many of the problems it attempts to solve. I'm hoping to include some better options for bracketing the normal build - both before, and after, explicitly - to make aggregator mojos obsolete, but for now they've been deprecated to avoid disrupting backward compatibility.</h1></section><section> -<h1>Also, aggregator mojos that *are* bound to the lifecycle will only be allowed to execute at most once during the build, to limit redundant execution. These mojos are meant to act on all projects in the reactor at once, and binding them to one pom.xml file is dangerous in that it can produce different build results depending on whether that pom.xml is included. This is further complicated if two modules in a reactor configure the same aggregator mojo...in which case, it may run multiple times...or, when the aggregator is configured in the parent pom, where it will run for each descendant module.</h1></section><section> -<h1>h2. Plugin API</h1></section><section> +<section><a id="h1._Maven_2.1_--_Jason_van_Zyl"></a> +<h1>h1. Maven 2.1 -- Jason van Zyl</h1></section><section><a id="Discussion.3A_need_some_answers_to_these_before_even_pushing_this_to_the_list_TODO.3A_Jesse_and_Greg_spent_a_lot_of_time_getting_the_async_SSL_working_so_a_little_description_this_work_would_be_useful_TODO.3A_architecture_document_about_Mercury_transport_as_the_async_HTTP.2FDAV_client_TODO.3A_example_of_user_facing_API_for_Mercury_TODO.3A_architecture_document_and_spec_for_mercury_.28largely_in_the_wiki.29_TODO.3A_example_of_user_facing_API_for_maven-shared-model_TODO.3A_architecture_document_on_maven_itself.2C_plugin_manager.2C_lifecycle_executor.2C_profile_construction_TODO.3A_check_with_kenney_to_see_if_his_work_survived_in_substituting_components_or_if_it.27s_his_work_that.27s_actually_making_it_work"></a> +<h1>Discussion: need some answers to these before even pushing this to the list TODO: Jesse and Greg spent a lot of time getting the async SSL working so a little description this work would be useful TODO: architecture document about Mercury transport as the async HTTP/DAV client TODO: example of user facing API for Mercury TODO: architecture document and spec for mercury (largely in the wiki) TODO: example of user facing API for maven-shared-model TODO: architecture document on maven itself, plugin manager, lifecycle executor, profile construction TODO: check with kenney to see if his work survived in substituting components or if it's his work that's actually making it work</h1></section><section><a id="Technical_Preparation.3A_not_necessary_before_discussions_can_start_but_helpful_to_help_guide_how_we_concretely_determine_backward_compat_TODO.3A_get_an_explanation_of_the_process_Arnaud_and_Benjamin_have_for_plugins._I_started_by_capturing_the_log_TODO.3A_document_standard_setup_ for_Hudson_we_have_so_people_can_see_the_results_of_testing_TODO.3A_setup_hudson_with_emma_for_code_coverage_and_ask_VELO_to_help_us_setup_coverage_for_integration_tests"></a> +<h1>Technical Preparation: not necessary before discussions can start but helpful to help guide how we concretely determine backward compat TODO: get an explanation of the process Arnaud and Benjamin have for plugins. I started by capturing the log TODO: document standard setup for Hudson we have so people can see the results of testing TODO: setup hudson with emma for code coverage and ask VELO to help us setup coverage for integration tests</h1></section><section><a id="h2._Architectural_Goals"></a> +<h1>h2. Architectural Goals</h1></section><section><a id="h3._Backward_Compatibility"></a> +<h1>h3. Backward Compatibility</h1></section><section><a id="We_must_ensure_that_plugins_and_reports_written_against_the_Maven_2.0.x_APIs_remain_to_work_in_2.1._We_don.27t_want_people_to_have_to_rewrite_their_plugins._There_are_several_plugins_that_are_using_the_current_artifact_resolution_code_that_will_not_be_supported_.28please_see_the_Mercury_section_below.29._The_ones_that_are_in_our_control_we_can_port_over_to_use_Mercury.2C_and_external_users_will_have_to_deal_with_the_major_version_change._Most_people_will_not_be_affected_and_Mercury_will_be_a_far_better_solution."></a> +<h1>We must ensure that plugins and reports written against the Maven 2.0.x APIs remain to work in 2.1. We don't want people to have to rewrite their plugins. There are several plugins that are using the current artifact resolution code that will not be supported (please see the Mercury section below). The ones that are in our control we can port over to use Mercury, and external users will have to deal with the major version change. Most people will not be affected and Mercury will be a far better solution.</h1></section><section><a id="We_must_also_ensure_that_POMs_of_version_4.0.0_are_supported_in_2.1.x_along_with_the_behavior_currently_experienced._We_are_relying_heavily_on_our_integrations_tests_right_now_but_as_we_move_forward_the_work_that_Shane_is_doing_on_the_project_builder_with_maven-shared-model_will_help_us_to_accommodate_different_versions_of_a_POM.2C_and_different_formats_we_decide_to_support._The_maven-shared-model_code_has_no_limitation_to_formats_of_XML.2C_or_any_o f_format_like_YAML.2C_script.2C_or_anything_else_anyone_can_dream_up._These_implementations_may_find_use_outside_of_Maven._For_example_someone_might_build_something_with_the_Maven_Embedder.2C_JRuby.2C_and_Mercury_to_create_a_JRuby-based_system._The_same_could_be_done_for_Groovy.2C_or_Intercal."></a> +<h1>We must also ensure that POMs of version 4.0.0 are supported in 2.1.x along with the behavior currently experienced. We are relying heavily on our integrations tests right now but as we move forward the work that Shane is doing on the project builder with maven-shared-model will help us to accommodate different versions of a POM, and different formats we decide to support. The maven-shared-model code has no limitation to formats of XML, or any of format like YAML, script, or anything else anyone can dream up. These implementations may find use outside of Maven. For example someone might build something with the Maven Embedder, JRuby, and Mercury to create a JRuby-based system. The same could be done for Groovy, or Intercal.</h1></section><section><a id="h2._Plugin_and_Extension_Loading"></a> +<h1>h2. Plugin and Extension Loading</h1></section><section><a id="Maven.27s_mechanisms_for_loading_plugins_and_build_extensions_has_been_refactored._You_can_find_more_information_in_the_.5BMaven_2.1_Plugin_and_Extension_Loading_Design.5D_document."></a> +<h1>Maven's mechanisms for loading plugins and build extensions has been refactored. You can find more information in the [Maven 2.1 Plugin and Extension Loading Design] document.</h1></section><section><a id="h2._Lifecycle"></a> +<h1>h2. Lifecycle</h1></section><section><a id="h3._Aggregator_Mojo_Handling"></a> +<h1>h3. Aggregator Mojo Handling</h1></section><section><a id="Aggregator_mojos_bound_to_the_lifecycle_have_been_deprecated._This_practice_can_produce_some_very_strange_results.2C_and_isn.27t_really_the_right_solution_for_many_of_the_problems_it_attempts_to_solve._I.27m_hoping_to_include_some_better_options_for_bracketing_the_normal_build_-_both_before.2C_and_after.2C_explicitly_-_to_make_aggregator_mojos_obsolete.2C_but_for_now_they.27ve_been_deprecated_to_avoid_disrupting_backward_compatibility."></a> +<h1>Aggregator mojos bound to the lifecycle have been deprecated. This practice can produce some very strange results, and isn't really the right solution for many of the problems it attempts to solve. I'm hoping to include some better options for bracketing the normal build - both before, and after, explicitly - to make aggregator mojos obsolete, but for now they've been deprecated to avoid disrupting backward compatibility.</h1></section><section><a id="Also.2C_aggregator_mojos_that_.2Aare.2A_bound_to_the_lifecycle_will_only_be_allowed_to_execute_at_most_once_during_the_build.2C_to_limit_redundant_execution._These_mojos_are_meant_to_act_on_all_projects_in_the_reactor_at_once.2C_and_binding_them_to_one_pom.xml_file_is_dangerous_in_that_it_can_produce_different_build_results_depending_on_whether_that_pom.xml_is_included._This_is_further_complicated_if_two_modules_in_a_reactor_configure_the_same_aggregator_mojo...in_which_case.2C_it_may_run_multiple_times...or.2C_when_the_aggregator_ is_configured_in_the_parent_pom.2C_where_it_will_run_for_each_descendant_module."></a> +<h1>Also, aggregator mojos that *are* bound to the lifecycle will only be allowed to execute at most once during the build, to limit redundant execution. These mojos are meant to act on all projects in the reactor at once, and binding them to one pom.xml file is dangerous in that it can produce different build results depending on whether that pom.xml is included. This is further complicated if two modules in a reactor configure the same aggregator mojo...in which case, it may run multiple times...or, when the aggregator is configured in the parent pom, where it will run for each descendant module.</h1></section><section><a id="h2._Plugin_API"></a> +<h1>h2. Plugin API</h1></section><section><a id="h3._Shading_of_plexus-utils_causing_a_ClassCastException_on_plugin.getConfiguration.28.29_.28.5BMNG-3012.7Chttp.3A.2F.2Fjira.codehaus.org.2Fbrowse.2FMNG-3012.5D.29"></a> <h1>h3. Shading of plexus-utils causing a ClassCastException on plugin.getConfiguration() ([MNG-3012|http://jira.codehaus.org/browse/MNG-3012])</h1> -<p>The fact that plexus-utils is hidden from plugins in the newer releases of Maven means that plugin.getConfiguration() from maven-model can cause a ClassCastException, if used from within a mojo. The plan to fix this is basically just to import Xpp3Dom from the shaded plexus-utils version in maven-core within the plugin's classrealm. This should allow us to share the same instance of that class (only, shouldn't really affect other p-u classes) and preserve backward compatibility for existing plugin releases.</p></section><section> -<h1>comment from kenney: The problem with this is that it's a hack. If xpp3dom/plexus utils is updated and the plugin requires the new xpp3dom class, which has a new method for instance, this will break the plugin.</h1></section><section> -<h1>About this specific issue (MNG-3012): The best solution is to only share java., javax., and core maven api classes, so we can no longer export anything outside the plugin api (which includes maven-model, maven-project, maven-settings e.a.). This would require to phase out plugin.getConfiguration() and other model methods that return xpp3dom classes, and let them return interfaces present in the maven core api. Those interfaces would have an implementation class that implements both that interface and extends xpp3dom, which will be hidden for the plugin. Another solution could be to use xmlplexusconfiguration</h1></section><section> -<h1>There's one more solution to consider; using ASM to rewrite plugins as they're loaded. We could add code modifiers that workaround incompatibilities by detecting usage patterns, like (Xpp3Dom) plugin.getConfiguration(). An example could be to modify the code to wrap Xpp3DomParser.parse( new StringReader( String.valueOf( /plugin.getConfiguration()/ ) ) ) around the call. This is even more of a hack though. Perhaps a mojo that scans for plugin incompatibilities using ASM is more feasible (no code modification).</h1></section><section> -<h1>So the basic problem we're up against is that there can be core api changes between major versions that pose incompatibilities for plugins written against an older version. The simplest solution would be to let plugins specify the maven versions they work against (which is partly present: <i>requires</i><i>mavenVersion</i>2.0.6<i>/mavenVersion</i><i>/requires</i>. If this field supports a versionrange, or we'd default the version interpretation above to mean [2.0.6,2.1), we can detect plugins that won't run. The shading mentioned above is solving only one incompatibility problem, and there are bound to be more. Maybe we even need 2 versions of a plugin at some point, targeted toward different maven versions, though I'd really like to avoid that. But we cannot just assume our 2.0 plugin api will never change across 'major' (read: minor) releases.</h1></section><section> -<h1>h3. Strategies for ensuring backward compatibility</h1><section> +<p>The fact that plexus-utils is hidden from plugins in the newer releases of Maven means that plugin.getConfiguration() from maven-model can cause a ClassCastException, if used from within a mojo. The plan to fix this is basically just to import Xpp3Dom from the shaded plexus-utils version in maven-core within the plugin's classrealm. This should allow us to share the same instance of that class (only, shouldn't really affect other p-u classes) and preserve backward compatibility for existing plugin releases.</p></section><section><a id="comment_from_kenney.3A_The_problem_with_this_is_that_it.27s_a_hack._If_xpp3dom.2Fplexus_utils_is_updated_and_the_plugin_requires_the_new_xpp3dom_class.2C_which_has_a_new_method_for_instance.2C_this_will_break_the_plugin."></a> +<h1>comment from kenney: The problem with this is that it's a hack. If xpp3dom/plexus utils is updated and the plugin requires the new xpp3dom class, which has a new method for instance, this will break the plugin.</h1></section><section><a id="About_this_specific_issue_.28MNG-3012.29.3A_The_best_solution_is_to_only_share_java..2C_javax..2C_and_core_maven_api_classes.2C_so_we_can_no_longer_export_anything_outside_the_plugin_api_.28which_includes_maven-model.2C_maven-project.2C_maven-settings_e.a..29._This_would_require_to_phase_out_plugin.getConfiguration.28.29_and_other_model_methods_that_return_xpp3dom_classes.2C_and_let_them_return_interfaces_present_in_the_maven_core_api._Those_interfaces_would_have_an_implementation_class_that_implements_both_that_interface_and_extends_xpp3dom.2C_which_will_be_hidden_for_the_plugin._Another_solution_could_be_to_use_xmlplexusconfiguration"></a> +<h1>About this specific issue (MNG-3012): The best solution is to only share java., javax., and core maven api classes, so we can no longer export anything outside the plugin api (which includes maven-model, maven-project, maven-settings e.a.). This would require to phase out plugin.getConfiguration() and other model methods that return xpp3dom classes, and let them return interfaces present in the maven core api. Those interfaces would have an implementation class that implements both that interface and extends xpp3dom, which will be hidden for the plugin. Another solution could be to use xmlplexusconfiguration</h1></section><section><a id="There.27s_one_more_solution_to_consider.3B_using_ASM_to_rewrite_plugins_as_they.27re_loaded._We_could_add_code_modifiers_that_workaround_incompatibilities_by_detecting_usage_patterns.2C_like_.28Xpp3Dom.29_plugin.getConfiguration.28.29._An_example_could_be_to_modify_the_code_to_wrap_Xpp3DomParser.parse.28_new_StringReader.28_String.valueOf.28_.2F plugin.getConfiguration.28.29.2F_.29_.29_.29_around_the_call._This_is_even_more_of_a_hack_though._Perhaps_a_mojo_that_scans_for_plugin_incompatibilities_using_ASM_is_more_feasible_.28no_code_modification.29."></a> +<h1>There's one more solution to consider; using ASM to rewrite plugins as they're loaded. We could add code modifiers that workaround incompatibilities by detecting usage patterns, like (Xpp3Dom) plugin.getConfiguration(). An example could be to modify the code to wrap Xpp3DomParser.parse( new StringReader( String.valueOf( /plugin.getConfiguration()/ ) ) ) around the call. This is even more of a hack though. Perhaps a mojo that scans for plugin incompatibilities using ASM is more feasible (no code modification).</h1></section><section><a id="So_the_basic_problem_we.27re_up_against_is_that_there_can_be_core_api_changes_between_major_versions_that_pose_incompatibilities_for_plugins_written_against_an_older_version._The_simplest_solution_would_be_to_let_plugins_specify_the_maven_versions_they_work_against_.28which_is_partly_present.3A_requiresmavenVersion2.0.6.2FmavenVersion.2Frequires._If_this_field_supports_a_versionrange.2C_or_we.27d_default_the_version_interpretation_above_to_mean _.5B2.0.6.2C2.1.29.2C_we_can_detect_plugins_that_won.27t_run._The_shading_mentioned_above_is_solving_only_one_incompatibility_problem.2C_and_there_are_bound_to_be_more._Maybe_we_even_need_2_versions_of_a_plugin_at_some_point.2C_targeted_toward_different_maven_versions.2C_though_I.27d_really_like_to_avoid_that._But_we_cannot_just_assume_our_2.0_plugin_api_will_never_change_across_.27major.27_.28read.3A_minor.29_releases."></a> +<h1>So the basic problem we're up against is that there can be core api changes between major versions that pose incompatibilities for plugins written against an older version. The simplest solution would be to let plugins specify the maven versions they work against (which is partly present: <i>requires</i><i>mavenVersion</i>2.0.6<i>/mavenVersion</i><i>/requires</i>. If this field supports a versionrange, or we'd default the version interpretation above to mean [2.0.6,2.1), we can detect plugins that won't run. The shading mentioned above is solving only one incompatibility problem, and there are bound to be more. Maybe we even need 2 versions of a plugin at some point, targeted toward different maven versions, though I'd really like to avoid that. But we cannot just assume our 2.0 plugin api will never change across 'major' (read: minor) releases.</h1></section><section><a id="h3._Strategies_for_ensuring_backward_compatibility"></a> +<h1>h3. Strategies for ensuring backward compatibility</h1><section><a id="Plugin_integration_testing"></a> <h2>Plugin integration testing</h2></section></section><section> -<h1><a id="code">code</a> jason: so when you and benjamin went through the tests you have "integration-tests" as the standard hook in the plugin build to grab on to? [07:59am] jason: why is the activator a property negation? why don't you just run in hudson with -Pintegration-tests? [08:02am] jason: i want to document what you and benjamin have done as a strategy for ensuring backward compatibility [08:03am] ltheussl left the chat room. (Client closed connection) [08:04am] aheritier: I started with this idea to have an additional profile that we activate with a property like integration-tests=true [08:05am] jason: yah, i think -Pintegration-tests=true in a schedule in hudson is fine [08:05am] jason: don't think the skip property is necessary [08:05am] bentmann joined the chat room. [08:05am] aheritier: but others showed me that he major part of existing integration tests were activated with skipTests ! true [08:05am] aheritier: I asked why [08:05am] aheritier: they said it was to be sure to launch it by default [08:06am] aheritier: but to have the possibility to deactivate them if we skip tests [08:06am] jason: sure, so by default they run [08:07am] aheritier: yes. [08:07am] aheritier: I prefer to activate them if I want [08:07am] jason: yes [08:07am] aheritier: not to have them always [08:07am] jason: i agree that should be the pattern [08:07am] aheritier: it's too long [08:07am] jason: a smoke test in one mode [08:07am] jason: and then turn them all on in hudson [08:07am] aheritier: it's why we invented CI servers [08:07am] aheritier: yes [08:07am] eu left the chat room. (Ping timeout) [08:08am] jason: i will document the setup but you and ben should figure out the pattern you want for a given plugin test [08:08am] jason: and i'll document this as a strategy for testing 2.1 [08:08am] eu joined the chat room. [08:08am] ekuleshov is now known as eu. [08:08am] jason: as i would like to take your setup, and parameterize the version of maven [08:08am] j ason: so when some changes are made in 2.1 i'll run the plugin smoke test first [08:09am] jason: make sure nothing we change in the apis or hooks is screwed up [08:09am] jason: and then run the ITs to make sure those plugins are working [08:09am] jason: i already know a handful that are not working [08:09am] bentmann: jason: How exactly do you intend to parametrize the Maven version? As far as I see, you only need to run them with the Maven of your choice. [08:10am] jason: by taking the existing build, read the job, and change the version [08:10am] jason: i have tools for reading/writing jobs [08:10am] jason: but even low tech cloning the job and changing the maven installation [08:10am] bentmann: So the parametrization is limited to the Hudson job config, right? [08:11am] jason: actually you could parameterize anything if you control the job reading/writing [08:11am] eu left the chat room. (Ping timeout) [08:11am] jason: but this is something kohsuke added himself about a week ago [08:11am] jason: in hudson itself [08:11am] jason: i will create a set of parameters to test old/new versions of maven with a given set of plugins [08:12am] jason: this is a great start, we couldn't do it if the plugins didn't have the same hook [08:12am] jason: so all the maven plugin builds now have "integration-tests" profiles? [08:12am] bentmann: Well, not all, only those that ITs before. [08:12am] ekuleshov joined the chat room. [08:12am] veleno left the chat room. (veleno) [08:13am] jason: well that's a start and they are at least consistent now [08:13am] ekuleshov is now known as eu. [08:13am] jason: which is a great start [08:13am] bentmann: I believe you just need to try to setup a Hudson job with Maven 2.1 to build "maven-plugins" and see what's missing in terms of config [08:14am] jason: not sure what you mean [08:14am] bentmann: IIRC, both Invoker and Shitty were picking up the maven.home from the currently running Maven, so the ITs should inherit tha t [08:14am] jason: also, do you guys have a quick way to tell what plugins don't have ITs? [08:14am] bentmann: Seach for src/it... [08:15am] jason: yes, i want to make more a report but i can do that [08:15am] jason: so anything that does have ITs you guys have made consistent? [08:15am] jason: yes? [08:15am] bentmann: Not sure what kind of consistency you actually require [08:16am] bentmann: The IT profile should be named equal for all of them [08:16am] bentmann: by inheriting from the parent [08:16am] i386_ left the chat room. (i386_) [08:16am] bentmann: whether the are run by Invoker or Shitty shouldn't matter, I guess [08:17am] jason: no, the actual project just needs a profile name the same. not taken from the parent but stated in the project itself [08:17am] jason: though the parent could specify that profile which just echos "No ITs" [08:17am] jason: so in a run we would know which plugins don't have ITs at all [08:17am] bentmann: Ah, I see [08:17am] jason: so i can try what i want and that's a great start [08:18am] jason: if our plugins don't all have ITs i cannot reasonably test 2.1 [08:18am] jason: and any discussion about compatibility is pointless until that's done <a id="code">code</a></h1></section><section> -<h1>h3. POM changes</h1></section><section> -<h1>There are many changes that users have requested in the POM, in addition to wholesale formatting changes. Acommodating these requests is a little tricky because we need to support different versions simultaneously so that if projecta A builds with 2.0.x, project B can consume the project A POM using 2.1.x. We just need some way to easy support multiple versions and support mediation between the different versions.</h1><section> -<h2>Tags: loose categorization people to use to help categorize as they see fit * Categories: more standard categories that form over time by using category structures that exist or common tags that are used so often they become categories * Dendency excludes: being to transitively exclude a dependency * Properties on dependencies * Specification Dependencies * Schematron/RelaxNG descriptor for each plugin -- Bryon Jacob proposed a flexible model but XSD is hard to fight here so I'm not sure how far this will go</h2></section></section><section> -<h1>h3. Embedding</h1></section><section> -<h1>Full embedding of the Maven core is a major feature of the 2.1.x line. The embedder was created primarily for IDE integration and is now being consumed by m2eclipse, Mevenide and IDEA, but the embedder is also used by the Maven CLI to ensure parity between IDEs and the CLI as much as possible. To understand how the embedder work you can refer to the [Maven Embedder documentation|http://maven.apache.org/guides/mini/guide-embedding-m2.html].</h1></section><section> -<h1>h3. Custom Components</h1></section><section> -<h1>As discussed in [Substituting of Custom Components|http://docs.codehaus.org/display/MAVEN/Substitution+of+Custom+Maven+Components] we now have two ways to insert new components into the system.</h1><section> +<h1><a id="code">code</a> jason: so when you and benjamin went through the tests you have "integration-tests" as the standard hook in the plugin build to grab on to? [07:59am] jason: why is the activator a property negation? why don't you just run in hudson with -Pintegration-tests? [08:02am] jason: i want to document what you and benjamin have done as a strategy for ensuring backward compatibility [08:03am] ltheussl left the chat room. (Client closed connection) [08:04am] aheritier: I started with this idea to have an additional profile that we activate with a property like integration-tests=true [08:05am] jason: yah, i think -Pintegration-tests=true in a schedule in hudson is fine [08:05am] jason: don't think the skip property is necessary [08:05am] bentmann joined the chat room. [08:05am] aheritier: but others showed me that he major part of existing integration tests were activated with skipTests ! true [08:05am] aheritier: I asked why [08:05am] aheritier: they said it was to be sure to launch it by default [08:06am] aheritier: but to have the possibility to deactivate them if we skip tests [08:06am] jason: sure, so by default they run [08:07am] aheritier: yes. [08:07am] aheritier: I prefer to activate them if I want [08:07am] jason: yes [08:07am] aheritier: not to have them always [08:07am] jason: i agree that should be the pattern [08:07am] aheritier: it's too long [08:07am] jason: a smoke test in one mode [08:07am] jason: and then turn them all on in hudson [08:07am] aheritier: it's why we invented CI servers [08:07am] aheritier: yes [08:07am] eu left the chat room. (Ping timeout) [08:08am] jason: i will document the setup but you and ben should figure out the pattern you want for a given plugin test [08:08am] jason: and i'll document this as a strategy for testing 2.1 [08:08am] eu joined the chat room. [08:08am] ekuleshov is now known as eu. [08:08am] jason: as i would like to take your setup, and parameterize the version of maven [08:08am] j ason: so when some changes are made in 2.1 i'll run the plugin smoke test first [08:09am] jason: make sure nothing we change in the apis or hooks is screwed up [08:09am] jason: and then run the ITs to make sure those plugins are working [08:09am] jason: i already know a handful that are not working [08:09am] bentmann: jason: How exactly do you intend to parametrize the Maven version? As far as I see, you only need to run them with the Maven of your choice. [08:10am] jason: by taking the existing build, read the job, and change the version [08:10am] jason: i have tools for reading/writing jobs [08:10am] jason: but even low tech cloning the job and changing the maven installation [08:10am] bentmann: So the parametrization is limited to the Hudson job config, right? [08:11am] jason: actually you could parameterize anything if you control the job reading/writing [08:11am] eu left the chat room. (Ping timeout) [08:11am] jason: but this is something kohsuke added himself about a week ago [08:11am] jason: in hudson itself [08:11am] jason: i will create a set of parameters to test old/new versions of maven with a given set of plugins [08:12am] jason: this is a great start, we couldn't do it if the plugins didn't have the same hook [08:12am] jason: so all the maven plugin builds now have "integration-tests" profiles? [08:12am] bentmann: Well, not all, only those that ITs before. [08:12am] ekuleshov joined the chat room. [08:12am] veleno left the chat room. (veleno) [08:13am] jason: well that's a start and they are at least consistent now [08:13am] ekuleshov is now known as eu. [08:13am] jason: which is a great start [08:13am] bentmann: I believe you just need to try to setup a Hudson job with Maven 2.1 to build "maven-plugins" and see what's missing in terms of config [08:14am] jason: not sure what you mean [08:14am] bentmann: IIRC, both Invoker and Shitty were picking up the maven.home from the currently running Maven, so the ITs should inherit tha t [08:14am] jason: also, do you guys have a quick way to tell what plugins don't have ITs? [08:14am] bentmann: Seach for src/it... [08:15am] jason: yes, i want to make more a report but i can do that [08:15am] jason: so anything that does have ITs you guys have made consistent? [08:15am] jason: yes? [08:15am] bentmann: Not sure what kind of consistency you actually require [08:16am] bentmann: The IT profile should be named equal for all of them [08:16am] bentmann: by inheriting from the parent [08:16am] i386_ left the chat room. (i386_) [08:16am] bentmann: whether the are run by Invoker or Shitty shouldn't matter, I guess [08:17am] jason: no, the actual project just needs a profile name the same. not taken from the parent but stated in the project itself [08:17am] jason: though the parent could specify that profile which just echos "No ITs" [08:17am] jason: so in a run we would know which plugins don't have ITs at all [08:17am] bentmann: Ah, I see [08:17am] jason: so i can try what i want and that's a great start [08:18am] jason: if our plugins don't all have ITs i cannot reasonably test 2.1 [08:18am] jason: and any discussion about compatibility is pointless until that's done <a id="code">code</a></h1></section><section><a id="h3._POM_changes"></a> +<h1>h3. POM changes</h1></section><section><a id="There_are_many_changes_that_users_have_requested_in_the_POM.2C_in_addition_to_wholesale_formatting_changes._Acommodating_these_requests_is_a_little_tricky_because_we_need_to_support_different_versions_simultaneously_so_that_if_projecta_A_builds_with_2.0.x.2C_project_B_can_consume_the_project_A_POM_using_2.1.x._We_just_need_some_way_to_easy_support_multiple_versions_and_support_mediation_between_the_different_versions."></a> +<h1>There are many changes that users have requested in the POM, in addition to wholesale formatting changes. Acommodating these requests is a little tricky because we need to support different versions simultaneously so that if projecta A builds with 2.0.x, project B can consume the project A POM using 2.1.x. We just need some way to easy support multiple versions and support mediation between the different versions.</h1><section><a id="Tags.3A_loose_categorization_people_to_use_to_help_categorize_as_they_see_fit_.2A_Categories.3A_more_standard_categories_that_form_over_time_by_using_category_structures_that_exist_or_common_tags_that_are_used_so_often_they_become_categories_.2A_Dendency_excludes.3A_being_to_transitively_exclude_a_dependency_.2A_Properties_on_dependencies_.2A_Specification_Dependencies_.2A_Schematron.2FRelaxNG_descriptor_for_each_plugin_--_Bryon_Jacob_proposed_a_flexible_model_but_XSD_is_hard_to_fight_here_so_I.27m_not_sure_how_far_this_will_go"></a> +<h2>Tags: loose categorization people to use to help categorize as they see fit * Categories: more standard categories that form over time by using category structures that exist or common tags that are used so often they become categories * Dendency excludes: being to transitively exclude a dependency * Properties on dependencies * Specification Dependencies * Schematron/RelaxNG descriptor for each plugin -- Bryon Jacob proposed a flexible model but XSD is hard to fight here so I'm not sure how far this will go</h2></section></section><section><a id="h3._Embedding"></a> +<h1>h3. Embedding</h1></section><section><a id="Full_embedding_of_the_Maven_core_is_a_major_feature_of_the_2.1.x_line._The_embedder_was_created_primarily_for_IDE_integration_and_is_now_being_consumed_by_m2eclipse.2C_Mevenide_and_IDEA.2C_but_the_embedder_is_also_used_by_the_Maven_CLI_to_ensure_parity_between_IDEs_and_the_CLI_as_much_as_possible._To_understand_how_the_embedder_work_you_can_refer_to_the_.5BMaven_Embedder_documentation.7Chttp.3A.2F.2Fmaven.apache.org.2Fguides.2Fmini.2Fguide-embedding-m2.html.5D."></a> +<h1>Full embedding of the Maven core is a major feature of the 2.1.x line. The embedder was created primarily for IDE integration and is now being consumed by m2eclipse, Mevenide and IDEA, but the embedder is also used by the Maven CLI to ensure parity between IDEs and the CLI as much as possible. To understand how the embedder work you can refer to the [Maven Embedder documentation|http://maven.apache.org/guides/mini/guide-embedding-m2.html].</h1></section><section><a id="h3._Custom_Components"></a> +<h1>h3. Custom Components</h1></section><section><a id="As_discussed_in_.5BSubstituting_of_Custom_Components.7Chttp.3A.2F.2Fdocs.codehaus.org.2Fdisplay.2FMAVEN.2FSubstitution.2Bof.2BCustom.2BMaven.2BComponents.5D_we_now_have_two_ways_to_insert_new_components_into_the_system."></a> +<h1>As discussed in [Substituting of Custom Components|http://docs.codehaus.org/display/MAVEN/Substitution+of+Custom+Maven+Components] we now have two ways to insert new components into the system.</h1><section><a id="Using_a_directory_and_specifying_it_in_the_Classworlds_configuration._Tycho_simply_has_a_special_set_of_components_that_load_first_before_the_standard_maven_components_and_they_override_the_standard_Maven_components._Here.27s_the_example_based_on_what_Tycho_is_currently_doing_which_allows_custom_components_to_be_used."></a> <h2>Using a directory and specifying it in the Classworlds configuration. Tycho simply has a special set of components that load first before the standard maven components and they override the standard Maven components. Here's the example based on what Tycho is currently doing which allows custom components to be used.</h2></section></section><section> <h1><a id="code">code</a> main is org.apache.maven.cli.MavenCli from plexus.core </h1></section><section> -<h1>set maven.home default $<a id="user.home">user.home</a>/m2 </h1><figure><img src="plexus.core" /><figcaption> load $<a id="maven.home">maven.home</a>/tycho/*.jar load $<a id="maven.home">maven.home</a>/lib/*.jar <a id="code">code</a></figcaption></figure><section> -<h2>The embedder has the ContainerCustomizer which allow you to inject new component descriptors. This is used in the IDE integration (m2ecipse, Netbeans) for adding custom artifact resolvers.</h2></section></section><section> -<h1>But what we ultimately need for Tycho is a way to dynamically pull in a set of components based on the packaging of a project. In our case with Tycho the packaging is maven-osgi-bundle and that should kick in the set of components that do builds for OSGi bundles. We also have another use case in Tycho where we are building OSGi bundles without a POM and actually using a manifest. In this case we need to somehow detect the manifest and then have the custom set of components kick in. In the case of Tycho we need a different project builder, and artifact resolver.</h1></section><section> -<h1>h3. Mercury</h1></section><section> -<h1>Mercury is a replacement for the current Maven Artifact subsystem, and a complete replacement for the HTTP and DAV portions of the existing transport.</h1></section><section> -<h1>The primary reasons for replacing the code are that it is unmaintainable and nearly impossible to navigate, it uses completely non-standard structures and libraries for version calculations, the API is too hard for people to use, and it is not given to users to consume as a single componment to use. Users are forced to know how several complicated components interact in order to implement a mechanism of retrieving artifacts from a repository. The entire mechanism needs to be replaced with something that can be maintained and is reliable. </h1></section><section> -<h1>Mercury started as some fixes to Maven Artifact to first help with embeddability and error reporting for IDE integration. This was a direct result of all IDE integrators having to reimplement the current artifact resolver to provide decent feedback to users when errors occured. The artifact subsystem would just die and leave the IDE in an unusable state. Milos was the first to implement his own artifact resolver, and Eugene soon had to do the same in m2eclipse. Oleg and I were also trying to use the current artifact mechanism in an embedded mode for some Eclipse plugins and this also proved to be quite painful. After the first attempt of removing the fail-fast behavior, Oleg and I decided to make a break from the old codebase and attempt to create Mercury with the following goals in mind:</h1><section> -<h2>Find the best people in the world to help create an awesome HTTP and DAV implementation. We did this by talking to Greg, Jan, and Jesse who are the Jetty folks and there just isn't anyone who knows HTTP better. Greg and Jan are awesome, and Jesse is Maven committer so we have some deep understanding of the issues involved. So what Oleg and I wanted to see was: ** Easy SSL support where mucky with certificates in the default install is not required. ** Connection pooling ** Connection parallelization ** Built in DAV client support for deployment ** Atomic retrieval: we make sure absolutely everything is been safely transported to disk before we place it in the local Maven repository ** Atomic deployment: in this case we could only support this using a special filter Greg created which blocks requests for any artifacts being deploy in the current set until the entire set land safely to disk. So it becomes impossible to ask for an artifact that refers to something else in the set b efore it is actually available. ** Starting thinking about a client that can understand GeoIP. Given the recent spikes in traffic we are going to start needing to distribute the load.</h2></section><section> -<h2>Find the best solution possible solution for dealing with version calculations, in particular ranges. For this we called on Daniel Le Berre and ask for some help in integrating his SAT4J library. We learned about the SAT4J library from the P2 project over at Eclipse.org at the last EclipseCon. SAT4J was deemed the best way forward by the P2 team in providing the most reliable, and most workable solution for doing version calculation. SAT4J provides ways to plug-in strategies to deal with our scopes, conflict resolution strategies and it is deadly fast. We felt we are in good company as we can call on Daniel and the P2 team and collaborate when difficult problems arise. </h2></section><section> -<h2>Find the best people to help with with security. This might an SSL-based solution to secure the channel where the source is known to be safe, a PGP-based solution where the contents must be secured assuming a hostile channel, or a combination of the two. To that end I have contacted the folks at the Legion of the Bouncy Castle and asked them to provide us the expertise to implement a safe and correct solution. I have not persued any help on the SSL.</h2></section></section><section> -<h1>So in the end I believe it would be detrimental to use the Maven Artifact code in the 2.1.x tree and the change needs to be made to use Mercury before the first alpha ships. Oleg and I started this work, and Oleg has subsequently worked tirelessly on Mercury along with a great deal of help from Greg, Jan and Jesse. I think Oleg understands the requirements as he's seen Maven in action in one of the largest development environments in the world and watched how Maven can fail spectacularly. </h1></section><section> -<h1>h3. Plugin API * Symmetric output expressions * Java5 Mojo annotations (Yoav Landman has this working already) * Clean separation of plugins from reports. It's not good that those are the same thing in the Maven internals. ** Not using concrete XML classes in the Plugin API (Xpp3Dom)</h1></section><section> -<h1>h3. Core Refactorings * Project Builder ([architecture|http://docs.codehaus.org/display/MAVENUSER/Project+Builder]) ** Maven shared model work: a new way of reading in the models for Maven that is not format dependent in any way i.e. XML, text, YAML, scripts, whatever. ** Pluggable model readers: this could leverage different implementations provided by the shared model work, but we still need a way to detect the type and version of the model that we want to consume ** A new terse format that uses attributes ** Automatic parent versioning ** New interpolation component (plexus-interpolation) ** Dynamic build sections ([MNG-3530|http://jira.codehaus.org/browse/MNG-3530]) ** Mixin support -- allowing a paramterizable template which can be imported with one line.</h1><section> -<h2>Remove the use of separate plugin repositories. We only need to pull resources from one repository. We started doing this but I've had a couple clients that want to separate the tools they use from the code they are developing/building. * Decouple script-based Plugins from the core -- we are a large part of the way here I need to summarize what was done. * Remove Settings from the core and make it a user facing configuration (This is primarily done -- jason) * Have one configuration model for request * Have one configuration model for session: session takes the request in the constructor and delegates * Domain logging * Plugin Manager ** Removal of the Plugin Registry (done) -- we moved in a direction where people lock down their versions and we've helped by putting default versions in the parent POM. ** Load Plugin dependencies into a separate ClassRealm (done) ** Plugin Execution Environment: Ability to run any version of a plugin where an environment is created which contains all the requirements for a particular version of the Plugin API * Lifecycle Executor ** Queryable Lifecycle *** The most important change in the embedding environment. You can actually query Maven for the complete execution before it happens. We must know the entire model of execution before we execute. * OSGi-like Classloading to support isolated execution environments</h2></section></section><section> -<h1>h3. Java 5</h1></section><section> -<h1>Java5 annotations for plugins: we have two implementations that have now been merged in plexus-cdc. QDOX 1.7 has now been released so we may want to check the source level gleaning again. Jason Dillon has created a working class processing model. We need to deal with Plexus components and Maven plugins.</h1></section><section> -<h1>h3. Integration and promotion of scriptable plugins</h1></section><section> -<h1>h3. Toolchains * Milos has implemented this and Shane had some feedback so this needs to be linked together</h1></section><section> -<h1>h3. Reporting * Report Execution Environment: Ability to run any version of a report where an environment is created which contains all the requirements for a particular version of the Report API. * Decouple the reporting core. We need to get Doxia out of the core. Anything it needs to run should be isolated.</h1></section><section> -<h1>h1. Other Use Cases to Integrate</h1></section><section> -<h1>h2. Determining project type in Eclipse (Igor Fedorenko)</h1></section><section> -<h1>Support for "java" projects in Eclipse has certain overhead and it is desirable to only enable for projects that actually require it. More specifically, java maven projects have JRE classpath container, maven classpath container, have java-specific UI elements enabled and are offered in various java-related searches. Also, tools like WTP and AJDT treat (eclipse) java projects specially.</h1></section><section> -<h1>There is currently no direct way to tell if a (maven) project needs to be configured as java project in eclipse. The closest test condition I can think off is</h1></section><section> -<h1>1 the project ArtifactHandler language=java</h1></section><section> -<h1>and</h1></section><section> -<h1>2.1 ArtifactHandler addedToClasspath=true</h1></section><section> -<h1>or</h1></section><section> -<h1>2.2 MavenProject.getCompileSourceRoots().size() > 0</h1></section><section> -<h1>or</h1></section><section> -<h1>2.3 MavenProject.getTestCompileSourceRoots().size() > 0</h1></section><section> -<h1>(in other words the project is java and either itself is added to classpath or has sources to compile).</h1></section><section> -<h1>This test will return false negative for some WAR projects (not added to classpath and don't have any sources to compile). Also, compileSourceRoots and testCompileSourceRoots only become fully populated after running maven build lifecycle, which is expensive.</h1><section> +<h1>set maven.home default $<a id="user.home">user.home</a>/m2 </h1><figure><img src="plexus.core" /><figcaption> load $<a id="maven.home">maven.home</a>/tycho/*.jar load $<a id="maven.home">maven.home</a>/lib/*.jar <a id="code">code</a></figcaption></figure><section><a id="The_embedder_has_the_ContainerCustomizer_which_allow_you_to_inject_new_component_descriptors._This_is_used_in_the_IDE_integration_.28m2ecipse.2C_Netbeans.29_for_adding_custom_artifact_resolvers."></a> +<h2>The embedder has the ContainerCustomizer which allow you to inject new component descriptors. This is used in the IDE integration (m2ecipse, Netbeans) for adding custom artifact resolvers.</h2></section></section><section><a id="But_what_we_ultimately_need_for_Tycho_is_a_way_to_dynamically_pull_in_a_set_of_components_based_on_the_packaging_of_a_project._In_our_case_with_Tycho_the_packaging_is_maven-osgi-bundle_and_that_should_kick_in_the_set_of_components_that_do_builds_for_OSGi_bundles._We_also_have_another_use_case_in_Tycho_where_we_are_building_OSGi_bundles_without_a_POM_and_actually_using_a_manifest._In_this_case_we_need_to_somehow_detect_the_manifest_and_then_have_the_custom_set_of_components_kick_in._In_the_case_of_Tycho_we_need_a_different_project_builder.2C_and_artifact_resolver."></a> +<h1>But what we ultimately need for Tycho is a way to dynamically pull in a set of components based on the packaging of a project. In our case with Tycho the packaging is maven-osgi-bundle and that should kick in the set of components that do builds for OSGi bundles. We also have another use case in Tycho where we are building OSGi bundles without a POM and actually using a manifest. In this case we need to somehow detect the manifest and then have the custom set of components kick in. In the case of Tycho we need a different project builder, and artifact resolver.</h1></section><section><a id="h3._Mercury"></a> +<h1>h3. Mercury</h1></section><section><a id="Mercury_is_a_replacement_for_the_current_Maven_Artifact_subsystem.2C_and_a_complete_replacement_for_the_HTTP_and_DAV_portions_of_the_existing_transport."></a> +<h1>Mercury is a replacement for the current Maven Artifact subsystem, and a complete replacement for the HTTP and DAV portions of the existing transport.</h1></section><section><a id="The_primary_reasons_for_replacing_the_code_are_that_it_is_unmaintainable_and_nearly_impossible_to_navigate.2C_it_uses_completely_non-standard_structures_and_libraries_for_version_calculations.2C_the_API_is_too_hard_for_people_to_use.2C_and_it_is_not_given_to_users_to_consume_as_a_single_componment_to_use._Users_are_forced_to_know_how_several_complicated_components_interact_in_order_to_implement_a_mechanism_of_retrieving_artifacts_from_a_repository._The_entire_mechanism_needs_to_be_replaced_with_something_that_can_be_maintained_and_is_reliable."></a> +<h1>The primary reasons for replacing the code are that it is unmaintainable and nearly impossible to navigate, it uses completely non-standard structures and libraries for version calculations, the API is too hard for people to use, and it is not given to users to consume as a single componment to use. Users are forced to know how several complicated components interact in order to implement a mechanism of retrieving artifacts from a repository. The entire mechanism needs to be replaced with something that can be maintained and is reliable. </h1></section><section><a id="Mercury_started_as_some_fixes_to_Maven_Artifact_to_first_help_with_embeddability_and_error_reporting_for_IDE_integration._This_was_a_direct_result_of_all_IDE_integrators_having_to_reimplement_the_current_artifact_resolver_to_provide_decent_feedback_to_users_when_errors_occured._The_artifact_subsystem_would_just_die_and_leave_the_IDE_in_an_unusable_state._Milos_was_the_first_to_implement_his_own_artifact_resolver.2C _and_Eugene_soon_had_to_do_the_same_in_m2eclipse._Oleg_and_I_were_also_trying_to_use_the_current_artifact_mechanism_in_an_embedded_mode_for_some_Eclipse_plugins_and_this_also_proved_to_be_quite_painful._After_the_first_attempt_of_removing_the_fail-fast_behavior.2C_Oleg_and_I_decided_to_make_a_break_from_the_old_codebase_and_attempt_to_create_Mercury_with_the_following_goals_in_mind.3A"></a> +<h1>Mercury started as some fixes to Maven Artifact to first help with embeddability and error reporting for IDE integration. This was a direct result of all IDE integrators having to reimplement the current artifact resolver to provide decent feedback to users when errors occured. The artifact subsystem would just die and leave the IDE in an unusable state. Milos was the first to implement his own artifact resolver, and Eugene soon had to do the same in m2eclipse. Oleg and I were also trying to use the current artifact mechanism in an embedded mode for some Eclipse plugins and this also proved to be quite painful. After the first attempt of removing the fail-fast behavior, Oleg and I decided to make a break from the old codebase and attempt to create Mercury with the following goals in mind:</h1><section><a id="Find_the_best_people_in_the_world_to_help_create_an_awesome_HTTP_and_DAV_implementation._We_did_this_by_talking_to_Greg.2C_Jan.2C_and_Jesse_who_are_the_Jetty_folks_and_there _just_isn.27t_anyone_who_knows_HTTP_better._Greg_and_Jan_are_awesome.2C_and_Jesse_is_Maven_committer_so_we_have_some_deep_understanding_of_the_issues_involved._So_what_Oleg_and_I_wanted_to_see_was.3A_.2A.2A_Easy_SSL_support_where_mucky_with_certificates_in_the_default_install_is_not_required._.2A.2A_Connection_pooling_.2A.2A_Connection_parallelization_.2A.2A_Built_in_DAV_client_support_for_deployment_.2A.2A_Atomic_retrieval.3A_we_make_sure_absolutely_everything_is_been_safely_transported_to_disk_before_we_place_it_in_the_local_Maven_repository_.2A.2A_Atomic_deployment.3A_in_this_case_we_could_only_support_this_using_a_special_filter_Greg_created_which_blocks_requests_for_any_artifacts_being_deploy_in_the_current_set_until_the_entire_set_land_safely_to_disk._So_it_becomes_impossible_to_ask_for_an_artifact_that_refers_to_something_else_in_the_set_before_it_is_actually_available._.2A.2A_Starting_thinking_about_a_client_that_can_understand_GeoIP._Given_the_recent_spikes_in_traffic_we_ar e_going_to_start_needing_to_distribute_the_load."></a> +<h2>Find the best people in the world to help create an awesome HTTP and DAV implementation. We did this by talking to Greg, Jan, and Jesse who are the Jetty folks and there just isn't anyone who knows HTTP better. Greg and Jan are awesome, and Jesse is Maven committer so we have some deep understanding of the issues involved. So what Oleg and I wanted to see was: ** Easy SSL support where mucky with certificates in the default install is not required. ** Connection pooling ** Connection parallelization ** Built in DAV client support for deployment ** Atomic retrieval: we make sure absolutely everything is been safely transported to disk before we place it in the local Maven repository ** Atomic deployment: in this case we could only support this using a special filter Greg created which blocks requests for any artifacts being deploy in the current set until the entire set land safely to disk. So it becomes impossible to ask for an artifact that refers to something else in the set b efore it is actually available. ** Starting thinking about a client that can understand GeoIP. Given the recent spikes in traffic we are going to start needing to distribute the load.</h2></section><section><a id="Find_the_best_solution_possible_solution_for_dealing_with_version_calculations.2C_in_particular_ranges._For_this_we_called_on_Daniel_Le_Berre_and_ask_for_some_help_in_integrating_his_SAT4J_library._We_learned_about_the_SAT4J_library_from_the_P2_project_over_at_Eclipse.org_at_the_last_EclipseCon._SAT4J_was_deemed_the_best_way_forward_by_the_P2_team_in_providing_the_most_reliable.2C_and_most_workable_solution_for_doing_version_calculation._SAT4J_provides_ways_to_plug-in_strategies_to_deal_with_our_scopes.2C_conflict_resolution_strategies_and_it_is_deadly_fast._We_felt_we_are_in_good_company_as_we_can_call_on_Daniel_and_the_P2_team_and_collaborate_when_difficult_problems_arise."></a> +<h2>Find the best solution possible solution for dealing with version calculations, in particular ranges. For this we called on Daniel Le Berre and ask for some help in integrating his SAT4J library. We learned about the SAT4J library from the P2 project over at Eclipse.org at the last EclipseCon. SAT4J was deemed the best way forward by the P2 team in providing the most reliable, and most workable solution for doing version calculation. SAT4J provides ways to plug-in strategies to deal with our scopes, conflict resolution strategies and it is deadly fast. We felt we are in good company as we can call on Daniel and the P2 team and collaborate when difficult problems arise. </h2></section><section><a id="Find_the_best_people_to_help_with_with_security._This_might_an_SSL-based_solution_to_secure_the_channel_where_the_source_is_known_to_be_safe.2C_a_PGP-based_solution_where_the_contents_must_be_secured_assuming_a_hostile_channel.2C_or_a_combination_of_the_two._To_that_end_I_have_contac ted_the_folks_at_the_Legion_of_the_Bouncy_Castle_and_asked_them_to_provide_us_the_expertise_to_implement_a_safe_and_correct_solution._I_have_not_persued_any_help_on_the_SSL."></a> +<h2>Find the best people to help with with security. This might an SSL-based solution to secure the channel where the source is known to be safe, a PGP-based solution where the contents must be secured assuming a hostile channel, or a combination of the two. To that end I have contacted the folks at the Legion of the Bouncy Castle and asked them to provide us the expertise to implement a safe and correct solution. I have not persued any help on the SSL.</h2></section></section><section><a id="So_in_the_end_I_believe_it_would_be_detrimental_to_use_the_Maven_Artifact_code_in_the_2.1.x_tree_and_the_change_needs_to_be_made_to_use_Mercury_before_the_first_alpha_ships._Oleg_and_I_started_this_work.2C_and_Oleg_has_subsequently_worked_tirelessly_on_Mercury_along_with_a_great_deal_of_help_from_Greg.2C_Jan_and_Jesse._I_think_Oleg_understands_the_requirements_as_he.27s_seen_Maven_in_action_in_one_of_the_largest_development_environments_in_the_world_and_watched_how_Maven_can_fail_spectacularly. "></a> +<h1>So in the end I believe it would be detrimental to use the Maven Artifact code in the 2.1.x tree and the change needs to be made to use Mercury before the first alpha ships. Oleg and I started this work, and Oleg has subsequently worked tirelessly on Mercury along with a great deal of help from Greg, Jan and Jesse. I think Oleg understands the requirements as he's seen Maven in action in one of the largest development environments in the world and watched how Maven can fail spectacularly. </h1></section><section><a id="h3._Plugin_API_.2A_Symmetric_output_expressions_.2A_Java5_Mojo_annotations_.28Yoav_Landman_has_this_working_already.29_.2A_Clean_separation_of_plugins_from_reports._It.27s_not_good_that_those_are_the_same_thing_in_the_Maven_internals._.2A.2A_Not_using_concrete_XML_classes_in_the_Plugin_API_.28Xpp3Dom.29"></a> +<h1>h3. Plugin API * Symmetric output expressions * Java5 Mojo annotations (Yoav Landman has this working already) * Clean separation of plugins from reports. It's not good that those are the same thing in the Maven internals. ** Not using concrete XML classes in the Plugin API (Xpp3Dom)</h1></section><section><a id="h3._Core_Refactorings_.2A_Project_Builder_.28.5Barchitecture.7Chttp.3A.2F.2Fdocs.codehaus.org.2Fdisplay.2FMAVENUSER.2FProject.2BBuilder.5D.29_.2A.2A_Maven_shared_model_work.3A_a_new_way_of_reading_in_the_models_for_Maven_that_is_not_format_dependent_in_any_way_i.e._XML.2C_text.2C_YAML.2C_scripts.2C_whatever._.2A.2A_Pluggable_model_readers.3A_this_could_leverage_different_implementations_provided_by_the_shared_model_work.2C_but_we_still_need_a_way_to_detect_the_type_and_version_of_the_model_that_we_want_to_consume_.2A.2A_A_new_terse_format_that_uses_attributes_.2A.2A_Automatic_parent_versioning_.2A.2A_New_interpolation_component_.28plexus-interpolation.29_.2A.2A_Dynamic_ build_sections_.28.5BMNG-3530.7Chttp.3A.2F.2Fjira.codehaus.org.2Fbrowse.2FMNG-3530.5D.29_.2A.2A_Mixin_support_--_allowing_a_paramterizable_template_which_can_be_imported_with_one_line."></a> +<h1>h3. Core Refactorings * Project Builder ([architecture|http://docs.codehaus.org/display/MAVENUSER/Project+Builder]) ** Maven shared model work: a new way of reading in the models for Maven that is not format dependent in any way i.e. XML, text, YAML, scripts, whatever. ** Pluggable model readers: this could leverage different implementations provided by the shared model work, but we still need a way to detect the type and version of the model that we want to consume ** A new terse format that uses attributes ** Automatic parent versioning ** New interpolation component (plexus-interpolation) ** Dynamic build sections ([MNG-3530|http://jira.codehaus.org/browse/MNG-3530]) ** Mixin support -- allowing a paramterizable template which can be imported with one line.</h1><section><a id="Remove_the_use_of_separate_plugin_repositories._We_only_need_to_pull_resources_from_one_repository._We_started_doing_this_but_I.27ve_had_a_couple_clients_that_want_to_separate_the_tools_they_use_from_th e_code_they_are_developing.2Fbuilding._.2A_Decouple_script-based_Plugins_from_the_core_--_we_are_a_large_part_of_the_way_here_I_need_to_summarize_what_was_done._.2A_Remove_Settings_from_the_core_and_make_it_a_user_facing_configuration_.28This_is_primarily_done_--_jason.29_.2A_Have_one_configuration_model_for_request_.2A_Have_one_configuration_model_for_session.3A_session_takes_the_request_in_the_constructor_and_delegates_.2A_Domain_logging_.2A_Plugin_Manager_.2A.2A_Removal_of_the_Plugin_Registry_.28done.29_--_we_moved_in_a_direction_where_people_lock_down_their_versions_and_we.27ve_helped_by_putting_default_versions_in_the_parent_POM._.2A.2A_Load_Plugin_dependencies_into_a_separate_ClassRealm_.28done.29_.2A.2A_Plugin_Execution_Environment.3A_Ability_to_run_any_version_of_a_plugin_where_an_environment_is_created_which_contains_all_the_requirements_for_a_particular_version_of_the_Plugin_API_.2A_Lifecycle_Executor_.2A.2A_Queryable_Lifecycle_.2A.2A.2A_The_most_important_change_in_the_em bedding_environment._You_can_actually_query_Maven_for_the_complete_execution_before_it_happens._We_must_know_the_entire_model_of_execution_before_we_execute._.2A_OSGi-like_Classloading_to_support_isolated_execution_environments"></a> +<h2>Remove the use of separate plugin repositories. We only need to pull resources from one repository. We started doing this but I've had a couple clients that want to separate the tools they use from the code they are developing/building. * Decouple script-based Plugins from the core -- we are a large part of the way here I need to summarize what was done. * Remove Settings from the core and make it a user facing configuration (This is primarily done -- jason) * Have one configuration model for request * Have one configuration model for session: session takes the request in the constructor and delegates * Domain logging * Plugin Manager ** Removal of the Plugin Registry (done) -- we moved in a direction where people lock down their versions and we've helped by putting default versions in the parent POM. ** Load Plugin dependencies into a separate ClassRealm (done) ** Plugin Execution Environment: Ability to run any version of a plugin where an environment is created which contains all the requirements for a particular version of the Plugin API * Lifecycle Executor ** Queryable Lifecycle *** The most important change in the embedding environment. You can actually query Maven for the complete execution before it happens. We must know the entire model of execution before we execute. * OSGi-like Classloading to support isolated execution environments</h2></section></section><section><a id="h3._Java_5"></a> +<h1>h3. Java 5</h1></section><section><a id="Java5_annotations_for_plugins.3A_we_have_two_implementations_that_have_now_been_merged_in_plexus-cdc._QDOX_1.7_has_now_been_released_so_we_may_want_to_check_the_source_level_gleaning_again._Jason_Dillon_has_created_a_working_class_processing_model._We_need_to_deal_with_Plexus_components_and_Maven_plugins."></a> +<h1>Java5 annotations for plugins: we have two implementations that have now been merged in plexus-cdc. QDOX 1.7 has now been released so we may want to check the source level gleaning again. Jason Dillon has created a working class processing model. We need to deal with Plexus components and Maven plugins.</h1></section><section><a id="h3._Integration_and_promotion_of_scriptable_plugins"></a> +<h1>h3. Integration and promotion of scriptable plugins</h1></section><section><a id="h3._Toolchains_.2A_Milos_has_implemented_this_and_Shane_had_some_feedback_so_this_needs_to_be_linked_together"></a> +<h1>h3. Toolchains * Milos has implemented this and Shane had some feedback so this needs to be linked together</h1></section><section><a id="h3._Reporting_.2A_Report_Execution_Environment.3A_Ability_to_run_any_version_of_a_report_where_an_environment_is_created_which_contains_all_the_requirements_for_a_particular_version_of_the_Report_API._.2A_Decouple_the_reporting_core._We_need_to_get_Doxia_out_of_the_core._Anything_it_needs_to_run_should_be_isolated."></a> +<h1>h3. Reporting * Report Execution Environment: Ability to run any version of a report where an environment is created which contains all the requirements for a particular version of the Report API. * Decouple the reporting core. We need to get Doxia out of the core. Anything it needs to run should be isolated.</h1></section><section><a id="h1._Other_Use_Cases_to_Integrate"></a> +<h1>h1. Other Use Cases to Integrate</h1></section><section><a id="h2._Determining_project_type_in_Eclipse_.28Igor_Fedorenko.29"></a> +<h1>h2. Determining project type in Eclipse (Igor Fedorenko)</h1></section><section><a id="Support_for_.22java.22_projects_in_Eclipse_has_certain_overhead_and_it_is_desirable_to_only_enable_for_projects_that_actually_require_it._More_specifically.2C_java_maven_projects_have_JRE_classpath_container.2C_maven_classpath_container.2C_have_java-specific_UI_elements_enabled_and_are_offered_in_various_java-related_searches._Also.2C_tools_like_WTP_and_AJDT_treat_.28eclipse.29_java_projects_specially."></a> +<h1>Support for "java" projects in Eclipse has certain overhead and it is desirable to only enable for projects that actually require it. More specifically, java maven projects have JRE classpath container, maven classpath container, have java-specific UI elements enabled and are offered in various java-related searches. Also, tools like WTP and AJDT treat (eclipse) java projects specially.</h1></section><section><a id="There_is_currently_no_direct_way_to_tell_if_a_.28maven.29_project_needs_to_be_configured_as_java_project_in_eclipse._The_closest_test_condition_I_can_think_off_is"></a> +<h1>There is currently no direct way to tell if a (maven) project needs to be configured as java project in eclipse. The closest test condition I can think off is</h1></section><section><a id="a1_the_project_ArtifactHandler_language.3Djava"></a> +<h1>1 the project ArtifactHandler language=java</h1></section><section><a id="and"></a> +<h1>and</h1></section><section><a id="a2.1_ArtifactHandler_addedToClasspath.3Dtrue"></a> +<h1>2.1 ArtifactHandler addedToClasspath=true</h1></section><section><a id="or"></a> +<h1>or</h1></section><section><a id="a2.2_MavenProject.getCompileSourceRoots.28.29.size.28.29_.3E_0"></a> +<h1>2.2 MavenProject.getCompileSourceRoots().size() > 0</h1></section><section><a id="or_1"></a> +<h1>or</h1></section><section><a id="a2.3_MavenProject.getTestCompileSourceRoots.28.29.size.28.29_.3E_0"></a> +<h1>2.3 MavenProject.getTestCompileSourceRoots().size() > 0</h1></section><section><a id="a.28in_other_words_the_project_is_java_and_either_itself_is_added_to_classpath_or_has_sources_to_compile.29."></a> +<h1>(in other words the project is java and either itself is added to classpath or has sources to compile).</h1></section><section><a id="This_test_will_return_false_negative_for_some_WAR_projects_.28not_added_to_classpath_and_don.27t_have_any_sources_to_compile.29._Also.2C_compileSourceRoots_and_testCompileSourceRoots_only_become_fully_populated_after_running_maven_build_lifecycle.2C_which_is_expensive."></a> +<h1>This test will return false negative for some WAR projects (not added to classpath and don't have any sources to compile). Also, compileSourceRoots and testCompileSourceRoots only become fully populated after running maven build lifecycle, which is expensive.</h1><section><a id="Extensions_.2A.2A_Different_categories_of_extensions.3A_providers_vs_packaging_vs_PMD.2FCheckstyle_resources_stuff_in_a_JAR_.2A.2A_Transparent_Extension_Loading_.2A.2A.2A_Any_Wagon_or_SCM_providers_should_get_picked_up_automatically_from_SCM_and_distributionManagement_URLs_.2A.2A.2A_Any_extensions_containing_packaging.2Flifecycle_related_bits_needs_to_be_picked_up_automatically"></a> <h2>Extensions ** Different categories of extensions: providers vs packaging vs PMD/Checkstyle resources stuff in a JAR ** Transparent Extension Loading *** Any Wagon or SCM providers should get picked up automatically from SCM and distributionManagement URLs *** Any extensions containing packaging/lifecycle related bits needs to be picked up automatically</h2></section></section> </main> </div>
Modified: maven/website/content/articles.html ============================================================================== --- maven/website/content/articles.html (original) +++ maven/website/content/articles.html Sat May 11 11:53:23 2024 @@ -2,17 +2,17 @@ <!-- - | Generated by Apache Maven Doxia Site Renderer 2.0.0-M10 from content/xdoc/articles.xml at 2024-05-11 + | Generated by Apache Maven Doxia Site Renderer 2.0.0-M18 from content/xdoc/articles.xml at 2024-05-11 | Rendered using Apache Maven Fluido Skin 2.0.0-M6 --> <html xmlns="http://www.w3.org/1999/xhtml"; lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> - <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M10" /> + <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M18" /> <meta name="author" content="Brett Porter" /> <meta name="author" content="Vincent Massol" /> - <title>Maven â External Resources on Maven</title> + <title>Maven</title> <link rel="stylesheet" href="./css/apache-maven-fluido-2.0.0-M6.min.css" /> <link rel="stylesheet" href="./css/site.css" /> <link rel="stylesheet" href="./css/print.css" media="print" /> @@ -39,8 +39,10 @@ <div class="container-fluid"> <header> <div id="banner"> - <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><img src="images/apache-maven-project.png" alt="Apache Maven Site" style="" /></a></div> - <div class="pull-right"><a href="./" id="bannerRight"><img src="images/maven-logo-black-on-white.png" alt="" style="" /></a></div> + <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><h1>Apache Maven Site</h1> +</a></div> + <div class="pull-right"><a href="./" id="bannerRight"><h1>$esc.xml( $banner.name )</h1> +</a></div> <div class="clear"><hr/></div> </div> @@ -48,7 +50,8 @@ <ul class="breadcrumb"> <li><a href="https://www.apache.org/"; class="externalLink" title="Apache">Apache</a><span class="divider">/</span></li> <li><a href="index.html" title="Maven">Maven</a><span class="divider">/</span></li> - <li class="active ">External Resources on Maven <a href="https://github.com/apache/maven-site/tree/master/content/xdoc/articles.xml";><img src="./images/accessories-text-editor.png" title="Edit" /></a></li> + + <li class="active ">Maven <a href="https://github.com/apache/maven-site/tree/master/content/xdoc/articles.xml";><img src="./images/accessories-text-editor.png" title="Edit" /></a></li> <li id="publishDate" class="pull-right"><span class="divider">|</span> Last Published: 2024-05-11</li> <li class="pull-right"><span class="divider">|</span> <a href="scm.html" title="Get Sources">Get Sources</a></li> @@ -130,7 +133,7 @@ <main id="bodyColumn" class="span10" > - <section> + <section><a id="Books_on_Maven"></a> <h1>Books on Maven</h1> @@ -205,7 +208,7 @@ </section> - <section> + <section><a id="Articles_on_Maven"></a> <h1>Articles on Maven</h1> <p> Modified: maven/website/content/background/history-of-maven.html ============================================================================== --- maven/website/content/background/history-of-maven.html (original) +++ maven/website/content/background/history-of-maven.html Sat May 11 11:53:23 2024 @@ -2,15 +2,15 @@ <!-- - | Generated by Apache Maven Doxia Site Renderer 2.0.0-M10 from content/markdown/background/history-of-maven.md at 2024-05-11 + | Generated by Apache Maven Doxia Site Renderer 2.0.0-M18 from content/markdown/background/history-of-maven.md at 2024-05-11 | Rendered using Apache Maven Fluido Skin 2.0.0-M6 --> <html xmlns="http://www.w3.org/1999/xhtml"; lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> - <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M10" /> - <title>Maven â History of Maven</title> + <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M18" /> + <title>Maven</title> <link rel="stylesheet" href="../css/apache-maven-fluido-2.0.0-M6.min.css" /> <link rel="stylesheet" href="../css/site.css" /> <link rel="stylesheet" href="../css/print.css" media="print" /> @@ -37,8 +37,10 @@ <div class="container-fluid"> <header> <div id="banner"> - <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><img src="../images/apache-maven-project.png" alt="Apache Maven Site" style="" /></a></div> - <div class="pull-right"><a href=".././" id="bannerRight"><img src="../images/maven-logo-black-on-white.png" alt="" style="" /></a></div> + <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><h1>Apache Maven Site</h1> +</a></div> + <div class="pull-right"><a href=".././" id="bannerRight"><h1>$esc.xml( $banner.name )</h1> +</a></div> <div class="clear"><hr/></div> </div> @@ -46,7 +48,8 @@ <ul class="breadcrumb"> <li><a href="https://www.apache.org/"; class="externalLink" title="Apache">Apache</a><span class="divider">/</span></li> <li><a href="../index.html" title="Maven">Maven</a><span class="divider">/</span></li> - <li class="active ">History of Maven <a href="https://github.com/apache/maven-site/tree/master/content/markdown/background/history-of-maven.md";><img src="../images/accessories-text-editor.png" title="Edit" /></a></li> + + <li class="active ">Maven <a href="https://github.com/apache/maven-site/tree/master/content/markdown/background/history-of-maven.md";><img src="../images/accessories-text-editor.png" title="Edit" /></a></li> <li id="publishDate" class="pull-right"><span class="divider">|</span> Last Published: 2024-05-11</li> <li class="pull-right"><span class="divider">|</span> <a href="../scm.html" title="Get Sources">Get Sources</a></li> @@ -126,7 +129,7 @@ </div> </header> <main id="bodyColumn" class="span10" > -<section> +<section><a id="History_of_Maven"></a> <h1>History of Maven</h1><!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file @@ -150,7 +153,7 @@ under the License. Jason van Zyl 12 October 2005 --> -<section> +<section><a id="History_of_Maven_by_Jason_van_Zyl"></a> <h2>History of Maven by Jason van Zyl</h2> <p>Maven began its life in the <a href="http://jakarta.apache.org"; class="externalLink">Jakarta</a> <a href="http://jakarta.apache.org/alexandria/legacy/"; class="externalLink">Alexandria</a> project. The Alexandria project is now defunct but was the breeding ground for not only Maven, but for the <a href="http://gump.apache.org"; class="externalLink">Gump</a> and <a href="http://forrest.apache.org"; class="externalLink">Forrest</a> projects as well. The first import of prototype sources happened in <a href="http://mail-archives.apache.org/mod_mbox/jakarta-alexandria-dev/200108.mbox/%3c20010827163505.53005.qm...@icarus.apache.org%3e"; class="externalLink">August 2001</a>. As of the date of this document (October 2005) Maven was <a href="http://mail-archives.apache.org/mod_mbox/jakarta-alexandria-dev/200202.mbox/%3c20020202153719.50163.qm...@icarus.apache.org%3e"; class="externalLink">removed</a> from Alexandria about 3 years, 7 months ago making Maven about 4 years old! Maven spent about 5 months as part of the Alexandria before moving on to its next home in the <a href="http://turbine.apache.org/"; class="externalLink">Turbine</a> project.</p> Modified: maven/website/content/background/philosophy-of-maven.html ============================================================================== --- maven/website/content/background/philosophy-of-maven.html (original) +++ maven/website/content/background/philosophy-of-maven.html Sat May 11 11:53:23 2024 @@ -2,15 +2,15 @@ <!-- - | Generated by Apache Maven Doxia Site Renderer 2.0.0-M10 from content/markdown/background/philosophy-of-maven.md at 2024-05-11 + | Generated by Apache Maven Doxia Site Renderer 2.0.0-M18 from content/markdown/background/philosophy-of-maven.md at 2024-05-11 | Rendered using Apache Maven Fluido Skin 2.0.0-M6 --> <html xmlns="http://www.w3.org/1999/xhtml"; lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> - <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M10" /> - <title>Maven â Philosophy of Maven</title> + <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M18" /> + <title>Maven</title> <link rel="stylesheet" href="../css/apache-maven-fluido-2.0.0-M6.min.css" /> <link rel="stylesheet" href="../css/site.css" /> <link rel="stylesheet" href="../css/print.css" media="print" /> @@ -37,8 +37,10 @@ <div class="container-fluid"> <header> <div id="banner"> - <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><img src="../images/apache-maven-project.png" alt="Apache Maven Site" style="" /></a></div> - <div class="pull-right"><a href=".././" id="bannerRight"><img src="../images/maven-logo-black-on-white.png" alt="" style="" /></a></div> + <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><h1>Apache Maven Site</h1> +</a></div> + <div class="pull-right"><a href=".././" id="bannerRight"><h1>$esc.xml( $banner.name )</h1> +</a></div> <div class="clear"><hr/></div> </div> @@ -46,7 +48,8 @@ <ul class="breadcrumb"> <li><a href="https://www.apache.org/"; class="externalLink" title="Apache">Apache</a><span class="divider">/</span></li> <li><a href="../index.html" title="Maven">Maven</a><span class="divider">/</span></li> - <li class="active ">Philosophy of Maven <a href="https://github.com/apache/maven-site/tree/master/content/markdown/background/philosophy-of-maven.md";><img src="../images/accessories-text-editor.png" title="Edit" /></a></li> + + <li class="active ">Maven <a href="https://github.com/apache/maven-site/tree/master/content/markdown/background/philosophy-of-maven.md";><img src="../images/accessories-text-editor.png" title="Edit" /></a></li> <li id="publishDate" class="pull-right"><span class="divider">|</span> Last Published: 2024-05-11</li> <li class="pull-right"><span class="divider">|</span> <a href="../scm.html" title="Get Sources">Get Sources</a></li> @@ -126,7 +129,7 @@ </div> </header> <main id="bodyColumn" class="span10" > -<section> +<section><a id="Philosophy_of_Maven"></a> <h1>Philosophy of Maven</h1><!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file Modified: maven/website/content/ci-management.html ============================================================================== --- maven/website/content/ci-management.html (original) +++ maven/website/content/ci-management.html Sat May 11 11:53:23 2024 @@ -2,14 +2,14 @@ <!-- - | Generated by Apache Maven Doxia Site Renderer 2.0.0-M10 from org.apache.maven.plugins:maven-project-info-reports-plugin:3.5.0:ci-management at 2024-05-11 + | Generated by Apache Maven Doxia Site Renderer 2.0.0-M18 from org.apache.maven.plugins:maven-project-info-reports-plugin:3.5.0:ci-management at 2024-05-11 | Rendered using Apache Maven Fluido Skin 2.0.0-M6 --> <html xmlns="http://www.w3.org/1999/xhtml"; lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> - <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M10" /> + <meta name="generator" content="Apache Maven Doxia Site Renderer 2.0.0-M18" /> <title>Maven â CI Management</title> <link rel="stylesheet" href="./css/apache-maven-fluido-2.0.0-M6.min.css" /> <link rel="stylesheet" href="./css/site.css" /> @@ -37,8 +37,10 @@ <div class="container-fluid"> <header> <div id="banner"> - <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><img src="images/apache-maven-project.png" alt="Apache Maven Site" style="" /></a></div> - <div class="pull-right"><a href="./" id="bannerRight"><img src="images/maven-logo-black-on-white.png" alt="" style="" /></a></div> + <div class="pull-left"><a href="https://www.apache.org/"; id="bannerLeft"><h1>Apache Maven Site</h1> +</a></div> + <div class="pull-right"><a href="./" id="bannerRight"><h1>$esc.xml( $banner.name )</h1> +</a></div> <div class="clear"><hr/></div> </div> @@ -136,8 +138,7 @@ <p>This project uses <a class="externalLink" href="https://www.jenkins.io/";>Jenkins</a>.</p></section><section> <h1>Access</h1><a id="Access"></a> <p>The following is a link to the continuous integration system used by the project:</p> -<div class="verbatim"> -<pre><a class="externalLink" href="https://ci-maven.apache.org/job/Maven/job/maven-box/";>https://ci-maven.apache.org/job/Maven/job/maven-box/</a></pre></div></section><section> +<pre><a class="externalLink" href="https://ci-maven.apache.org/job/Maven/job/maven-box/";>https://ci-maven.apache.org/job/Maven/job/maven-box/</a></pre></section><section> <h1>Notifiers</h1><a id="Notifiers"></a> <p>Configuration for notifying developers/users when a build is unsuccessful, including user information and notification mode.</p> <table class="table table-striped">
