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Component

When creating several assemblies for a project with a custom assembly descriptor, it can't be helped that you will be duplicating some parts of a defined assembly. These duplicates can be extracted and placed in a separate file called a descriptor component.

Descriptor components contain FileSets, Files, and DependencySets meant to be shared by assembly descriptors by referencing them using <componentDescriptors>. It allows multiple assemblies to share a set of user defined collections. 

<component xmlns="http://maven.apache.org/ASSEMBLY-COMPONENT/2.1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/ASSEMBLY-COMPONENT/2.1.1 https://maven.apache.org/xsd/assembly-component-2.1.1.xsd">
  <moduleSets>
    <moduleSet>
      <useAllReactorProjects/>
      <includeSubModules/>
      <includes/>
      <excludes/>
      <sources>
        <useDefaultExcludes/>
        <outputDirectory/>
        <includes/>
        <excludes/>
        <fileMode/>
        <directoryMode/>
        <fileSets>
          <fileSet>
            <useDefaultExcludes/>
            <outputDirectory/>
            <includes/>
            <excludes/>
            <fileMode/>
            <directoryMode/>
            <directory/>
            <lineEnding/>
            <filtered/>
            <nonFilteredFileExtensions/>
          </fileSet>
        </fileSets>
        <includeModuleDirectory/>
        <excludeSubModuleDirectories/>
        <outputDirectoryMapping/>
      </sources>
      <binaries>
        <outputDirectory/>
        <includes/>
        <excludes/>
        <fileMode/>
        <directoryMode/>
        <attachmentClassifier/>
        <includeDependencies/>
        <dependencySets>
          <dependencySet>
            <outputDirectory/>
            <includes/>
            <excludes/>
            <fileMode/>
            <directoryMode/>
            <useStrictFiltering/>
            <outputFileNameMapping/>
            <unpack/>
            <unpackOptions>
              <includes/>
              <excludes/>
              <filtered/>
              <nonFilteredFileExtensions/>
              <lineEnding/>
              <useDefaultExcludes/>
              <encoding/>
            </unpackOptions>
            <scope/>
            <useProjectArtifact/>
            <useProjectAttachments/>
            <useTransitiveDependencies/>
            <useTransitiveFiltering/>
          </dependencySet>
        </dependencySets>
        <unpack/>
        <unpackOptions>
          <includes/>
          <excludes/>
          <filtered/>
          <nonFilteredFileExtensions/>
          <lineEnding/>
          <useDefaultExcludes/>
          <encoding/>
        </unpackOptions>
        <outputFileNameMapping/>
      </binaries>
    </moduleSet>
  </moduleSets>
  <fileSets>
    <fileSet>
      <useDefaultExcludes/>
      <outputDirectory/>
      <includes/>
      <excludes/>
      <fileMode/>
      <directoryMode/>
      <directory/>
      <lineEnding/>
      <filtered/>
      <nonFilteredFileExtensions/>
    </fileSet>
  </fileSets>
  <files>
    <file>
      <source/>
      <sources/>
      <outputDirectory/>
      <destName/>
      <fileMode/>
      <lineEnding/>
      <filtered/>
    </file>
  </files>
  <dependencySets>
    <dependencySet>
      <outputDirectory/>
      <includes/>
      <excludes/>
      <fileMode/>
      <directoryMode/>
      <useStrictFiltering/>
      <outputFileNameMapping/>
      <unpack/>
      <unpackOptions>
        <includes/>
        <excludes/>
        <filtered/>
        <nonFilteredFileExtensions/>
        <lineEnding/>
        <useDefaultExcludes/>
        <encoding/>
      </unpackOptions>
      <scope/>
      <useProjectArtifact/>
      <useProjectAttachments/>
      <useTransitiveDependencies/>
      <useTransitiveFiltering/>
    </dependencySet>
  </dependencySets>
  <repositories>
    <repository>
      <outputDirectory/>
      <includes/>
      <excludes/>
      <fileMode/>
      <directoryMode/>
      <includeMetadata/>
      <groupVersionAlignments>
        <groupVersionAlignment>
          <id/>
          <version/>
          <excludes/>
        </groupVersionAlignment>
      </groupVersionAlignments>
      <scope/>
    </repository>
  </repositories>
  <containerDescriptorHandlers>
    <containerDescriptorHandler>
      <handlerName/>
      <configuration/>
    </containerDescriptorHandler>
  </containerDescriptorHandlers>
</component>

component

Describes the component layout and packaging.

Element Type Description
moduleSets/moduleSet* List<ModuleSet> (Many) Specifies which module files to include in the assembly. A moduleSet is specified by providing one or more of <moduleSet> subelements.
fileSets/fileSet* List<FileSet> (Many) Specifies which groups of files to include in the assembly. A fileSet is specified by providing one or more of <fileSet> subelements.
files/file* List<FileItem> (Many) Specifies which single files to include in the assembly. A file is specified by providing one or more of <file> subelements.
dependencySets/dependencySet* List<DependencySet> (Many) Specifies which dependencies to include in the assembly. A dependencySet is specified by providing one or more of <dependencySet> subelements.
repositories/repository* List<Repository> (Many) Deprecated since model version 2.1.1. Specifies a set of repositories to include in the assembly. A repository is specified by providing one or more of <repository> subelements.
containerDescriptorHandlers/containerDescriptorHandler* List<ContainerDescriptorHandlerConfig> (Many) Set of components which filter various container descriptors out of the normal archive stream, so they can be aggregated then added.

moduleSet

A moduleSet represent one or more project <module> present inside a project's pom.xml. This allows you to include sources or binaries belonging to a project's <modules>.

NOTE: When using <moduleSets> from the command-line, it is required to pass first the package phase by doing: "mvn package assembly:assembly". This bug/issue is scheduled to be addressed by Maven 2.1.

Element Type Description
useAllReactorProjects boolean If set to true, the plugin will include all projects in the current reactor for processing in this ModuleSet. These will be subject to include/exclude rules. Default value is true. (Since 2.2)

Default value is: false

.
includeSubModules boolean If set to false, the plugin will exclude sub-modules from processing in this ModuleSet. Otherwise, it will process all sub-modules, each subject to include/exclude rules. Default value is true. (Since 2.2)

Default value is: true

.
includes/include* List<String> (Many) When <include> subelements are present, they define a set of project coordinates to include. If none is present, then <includes> represents all valid values. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define a set of project artifact coordinates to exclude. If none is present, then <excludes> represents no exclusions. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
sources ModuleSources When this is present, the plugin will include the source files of the included modules from this set in the resulting assembly.
binaries ModuleBinaries When this is present, the plugin will include the binaries of the included modules from this set in the resulting assembly.

sources

Contains configuration options for including the source files of a project module in an assembly.

Element Type Description
useDefaultExcludes boolean Whether standard exclusion patterns, such as those matching CVS and Subversion metadata files, should be used when calculating the files affected by this set. For backward compatibility, the default value is true. (Since 2.2)

Default value is: true

.
outputDirectory String Sets the output directory relative to the root of the root directory of the assembly. For example, "log" will put the specified files in the log directory.
includes/include* List<String> (Many) When <include> subelements are present, they define a set of files and directory to include. If none is present, then <includes> represents all valid values.
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define a set of files and directory to exclude. If none is present, then <excludes> represents no exclusions.
fileMode String Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other read-only. The default value is 0644. (more on unix-style permissions)
directoryMode String Similar to a UNIX permission, sets the directory mode of the directories included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0755 translates to User read-write, Group and Other read-only. The default value is 0755. (more on unix-style permissions)
fileSets/fileSet* List<FileSet> (Many) Specifies which groups of files from each included module to include in the assembly. A fileSet is specified by providing one or more of <fileSet> subelements. (Since 2.2)
includeModuleDirectory boolean Specifies whether the module's finalName should be prepended to the outputDirectory values of any fileSets applied to it. Default value is true. (Since 2.2)

Default value is: true

.
excludeSubModuleDirectories boolean Specifies whether sub-module directories below the current module should be excluded from fileSets applied to that module. This might be useful if you only mean to copy the sources for the exact module list matched by this ModuleSet, ignoring (or processing separately) the modules which exist in directories below the current one. Default value is true. (Since 2.2)

Default value is: true

.
outputDirectoryMapping String Sets the mapping pattern for all module base-directories included in this assembly. NOTE: This field is only used if includeModuleDirectory == true. Default is the module's ${artifactId} in 2.2-beta-1, and ${module.artifactId} in subsequent versions. (Since 2.2)

Default value is: ${module.artifactId}

.

fileSet

A fileSet allows the inclusion of groups of files into the assembly.

Element Type Description
useDefaultExcludes boolean Whether standard exclusion patterns, such as those matching CVS and Subversion metadata files, should be used when calculating the files affected by this set. For backward compatibility, the default value is true. (Since 2.2)

Default value is: true

.
outputDirectory String Sets the output directory relative to the root of the root directory of the assembly. For example, "log" will put the specified files in the log directory.
includes/include* List<String> (Many) When <include> subelements are present, they define a set of files and directory to include. If none is present, then <includes> represents all valid values.
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define a set of files and directory to exclude. If none is present, then <excludes> represents no exclusions.
fileMode String Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other read-only. The default value is 0644. (more on unix-style permissions)
directoryMode String Similar to a UNIX permission, sets the directory mode of the directories included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0755 translates to User read-write, Group and Other read-only. The default value is 0755. (more on unix-style permissions)
directory String Sets the absolute or relative location from the module's directory. For example, "src/main/bin" would select this subdirectory of the project in which this dependency is defined.
lineEnding String Sets the line-endings of the files in this fileSet. Valid values:
  • "keep" - Preserve all line endings
  • "unix" - Use Unix-style line endings
  • "lf" - Use a single line-feed line endings
  • "dos" - Use DOS-style line endings
  • "crlf" - Use Carraige-return, line-feed line endings
filtered boolean Whether to filter symbols in the files as they are copied, using properties from the build configuration. (Since 2.2)

Default value is: false

.
nonFilteredFileExtensions/nonFilteredFileExtension* List<String> (Many) Additional file extensions to not apply filtering (Since 3.2.0)

binaries

Contains configuration options for including the binary files of a project module in an assembly.

Element Type Description
outputDirectory String Sets the output directory relative to the root of the root directory of the assembly. For example, "log" will put the specified files in the log directory, directly beneath the root of the archive.
includes/include* List<String> (Many) When <include> subelements are present, they define a set of artifact coordinates to include. If none is present, then <includes> represents all valid values. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define a set of dependency artifact coordinates to exclude. If none is present, then <excludes> represents no exclusions. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
fileMode String Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other read-only. The default value is 0644. (more on unix-style permissions)
directoryMode String Similar to a UNIX permission, sets the directory mode of the directories included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0755 translates to User read-write, Group and Other read-only. The default value is 0755. (more on unix-style permissions)
attachmentClassifier String When specified, the attachmentClassifier will cause the assembler to look at artifacts attached to the module instead of the main project artifact. If it can find an attached artifact matching the specified classifier, it will use it; otherwise, it will throw an exception. (Since 2.2)
includeDependencies boolean If set to true, the plugin will include the direct and transitive dependencies of of the project modules included here. Otherwise, it will only include the module packages only. Default value is true.

Default value is: true

.
dependencySets/dependencySet* List<DependencySet> (Many) Specifies which dependencies of the module to include in the assembly. A dependencySet is specified by providing one or more of <dependencySet> subelements. (Since 2.2)
unpack boolean If set to true, this property will unpack all module packages into the specified output directory. When set to false module packages will be included as archives (jars). Default value is true.

Default value is: true

.
unpackOptions UnpackOptions Allows the specification of includes and excludes, along with filtering options, for items unpacked from a module artifact. (Since 2.2)
outputFileNameMapping String Sets the mapping pattern for all NON-UNPACKED dependencies included in this assembly. Default is ${module.artifactId}-${module.version}${dashClassifier?}.${module.extension}. (Since 2.2-beta-2; 2.2-beta-1 uses ${artifactId}-${version}${dashClassifier?}.${extension}) NOTE: If the dependencySet specifies unpack == true, outputFileNameMapping WILL NOT BE USED; in these cases, use outputDirectory. See the plugin FAQ for more details about entries usable in the outputFileNameMapping parameter.

Default value is: ${module.artifactId}-${module.version}${dashClassifier?}.${module.extension}

.

dependencySet

A dependencySet allows inclusion and exclusion of project dependencies in the assembly.

Element Type Description
outputDirectory String Sets the output directory relative to the root of the root directory of the assembly. For example, "log" will put the specified files in the log directory, directly beneath the root of the archive.
includes/include* List<String> (Many) When <include> subelements are present, they define a set of artifact coordinates to include. If none is present, then <includes> represents all valid values. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define a set of dependency artifact coordinates to exclude. If none is present, then <excludes> represents no exclusions. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
fileMode String Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other read-only. The default value is 0644. (more on unix-style permissions)
directoryMode String Similar to a UNIX permission, sets the directory mode of the directories included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0755 translates to User read-write, Group and Other read-only. The default value is 0755. (more on unix-style permissions)
useStrictFiltering boolean When specified as true, any include/exclude patterns which aren't used to filter an actual artifact during assembly creation will cause the build to fail with an error. This is meant to highlight obsolete inclusions or exclusions, or else signal that the assembly descriptor is incorrectly configured. (Since 2.2)

Default value is: false

.
outputFileNameMapping String Sets the mapping pattern for all dependencies included in this assembly. Default is ${artifact.artifactId}-${artifact.version}${dashClassifier?}.${artifact.extension}. (Since 2.2-beta-2; 2.2-beta-1 uses ${artifactId}-${version}${dashClassifier?}.${extension}). NOTE: If the dependencySet specifies unpack == true, outputFileNameMapping WILL NOT BE USED; in these cases, use outputDirectory. See the plugin FAQ for more details about entries usable in the outputFileNameMapping parameter.

Default value is: ${artifact.artifactId}-${artifact.version}${dashClassifier?}.${artifact.extension}

.
unpack boolean If set to true, this property will unpack all dependencies into the specified output directory. When set to false, dependencies will be included as archives (jars). Can only unpack jar, zip, tar.gz, and tar.bz archives. Default value is false.

Default value is: false

.
unpackOptions UnpackOptions Allows the specification of includes and excludes, along with filtering options, for items unpacked from a dependency artifact. (Since 2.2)
scope String Sets the dependency scope for this dependencySet. Default scope value is "runtime".

Default value is: runtime

.
useProjectArtifact boolean Determines whether the artifact produced during the current project's build should be included in this dependency set. Default value is true, for backward compatibility. (Since 2.2)

Default value is: true

.
useProjectAttachments boolean Determines whether the attached artifacts produced during the current project's build should be included in this dependency set. Default value is false. (Since 2.2)

Default value is: false

.
useTransitiveDependencies boolean Determines whether transitive dependencies will be included in the processing of the current dependency set. If true, includes/excludes/useTransitiveFiltering will apply to transitive dependency artifacts in addition to the main project dependency artifacts. If false, useTransitiveFiltering is meaningless, and includes/excludes only affect the immediate dependencies of the project. By default, this value is true. (Since 2.2)

Default value is: true

.
useTransitiveFiltering boolean Determines whether the include/exclude patterns in this dependency set will be applied to the transitive path of a given artifact. If true, and the current artifact is a transitive dependency brought in by another artifact which matches an inclusion or exclusion pattern, then the current artifact has the same inclusion/exclusion logic applied to it as well. By default, this value is false, in order to preserve backward compatibility with version 2.1. This means that includes/excludes only apply directly to the current artifact, and not to the transitive set of artifacts which brought it in. (Since 2.2)

Default value is: false

.

unpackOptions

Specifies options for including/excluding/filtering items extracted from an archive. (Since 2.2)

Element Type Description
includes/include* List<String> (Many) Set of file and/or directory patterns for matching items to be included from an archive as it is unpacked. Each item is specified as <include>some/path</include> (Since 2.2)
excludes/exclude* List<String> (Many) Set of file and/or directory patterns for matching items to be excluded from an archive as it is unpacked. Each item is specified as <exclude>some/path</exclude> (Since 2.2)
filtered boolean Whether to filter symbols in the files as they are unpacked from the archive, using properties from the build configuration. (Since 2.2)

Default value is: false

.
nonFilteredFileExtensions/nonFilteredFileExtension* List<String> (Many) Additional file extensions to not apply filtering (Since 3.2.0)
lineEnding String Sets the line-endings of the files. (Since 2.2) Valid values:
  • "keep" - Preserve all line endings
  • "unix" - Use Unix-style line endings
  • "lf" - Use a single line-feed line endings
  • "dos" - Use DOS-style line endings
  • "crlf" - Use Carraige-return, line-feed line endings
useDefaultExcludes boolean Whether standard exclusion patterns, such as those matching CVS and Subversion metadata files, should be used when calculating the files affected by this set. For backward compatibility, the default value is true. (Since 2.2)

Default value is: true

.
encoding String Allows to specify the encoding to use when unpacking archives, for unarchivers that support specifying encoding. If unspecified, archiver default will be used. Archiver defaults generally represent sane (modern) values.

file

A file allows individual file inclusion with the option to change the destination filename not supported by fileSets.

Element Type Description
source String Sets the absolute or relative path from the module's directory of the file to be included in the assembly.
sources/source* List<String> (Many) Set of absolute or relative paths from the module's directory of the files be combined and included in the assembly.
outputDirectory String Sets the output directory relative to the root of the root directory of the assembly. For example, "log" will put the specified files in the log directory.
destName String Sets the destination filename in the outputDirectory. Default is the same name as the source's file.
fileMode String Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other read-only. The default value is 0644. (more on unix-style permissions)
lineEnding String Sets the line-endings of the files in this file. Valid values are:
  • "keep" - Preserve all line endings
  • "unix" - Use Unix-style line endings
  • "lf" - Use a single line-feed line endings
  • "dos" - Use DOS-style line endings
  • "crlf" - Use Carraige-return, line-feed line endings
filtered boolean Sets whether to determine if the file is filtered.

Default value is: false

.

repository

Deprecated since model version 2.1.1. Defines a Maven repository to be included in the assembly. The artifacts available to be included in a repository are your project's dependency artifacts. The repository created contains the needed metadata entries and also contains both sha1 and md5 checksums. This is useful for creating archives which will be deployed to internal repositories.

NOTE: Currently, only artifacts from the central repository are allowed.

Element Type Description
outputDirectory String Sets the output directory relative to the root of the root directory of the assembly. For example, "log" will put the specified files in the log directory, directly beneath the root of the archive.
includes/include* List<String> (Many) When <include> subelements are present, they define a set of artifact coordinates to include. If none is present, then <includes> represents all valid values. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define a set of dependency artifact coordinates to exclude. If none is present, then <excludes> represents no exclusions. Artifact coordinates may be given in simple groupId:artifactId form, or they may be fully qualified in the form groupId:artifactId:type[:classifier]:version. Additionally, wildcards can be used, as in *:maven-*
fileMode String Similar to a UNIX permission, sets the file mode of the files included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0644 translates to User read-write, Group and Other read-only. The default value is 0644. (more on unix-style permissions)
directoryMode String Similar to a UNIX permission, sets the directory mode of the directories included. THIS IS AN OCTAL VALUE. Format: (User)(Group)(Other) where each component is a sum of Read = 4, Write = 2, and Execute = 1. For example, the value 0755 translates to User read-write, Group and Other read-only. The default value is 0755. (more on unix-style permissions)
includeMetadata boolean If set to true, this property will trigger the creation of repository metadata which will allow the repository to be used as a functional remote repository. Default value is false.

Default value is: false

.
groupVersionAlignments/groupVersionAlignment* List<GroupVersionAlignment> (Many) Specifies that you want to align a group of artifacts to a specified version. A groupVersionAlignment is specified by providing one or more of <groupVersionAlignment> subelements.
scope String Specifies the scope for artifacts included in this repository. Default scope value is "runtime". (Since 2.2)

Default value is: runtime

.

groupVersionAlignment

Allows a group of artifacts to be aligned to a specified version.

Element Type Description
id String The groupId of the artifacts for which you want to align the versions.
version String The version you want to align this group to.
excludes/exclude* List<String> (Many) When <exclude> subelements are present, they define the artifactIds of the artifacts to exclude. If none is present, then <excludes> represents no exclusions. An exclude is specified by providing one or more of <exclude> subelements.

containerDescriptorHandler

Configures a filter for files headed into the assembly archive, to enable aggregation of various types of descriptor fragments, such as components.xml, web.xml, etc.

Element Type Description
handlerName String The handler's plexus role-hint, for lookup from the container.
configuration DOM Configuration options for the handler.