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Content Package Properties
================
One of the most important meta files of a content package is the `properties.xml` which is present in
the `META-INF/vault` directory. It defines defines several meta data around the content package itself
which are just used for informational purpose (like `lastModifiedBy`) and other properties which actually influence how the package
is installed (like `subPackageHandling`). In addition to that there is the `MANIFEST.MF` within `META-INF` which contains only informational metadata.

<!-- MACRO{toc} -->

properties.xml
-----------------
The `properties.xml` follows the format of a Java properties file in XML format as defined by [java.util.Properties](https://docs.oracle.com/javase/8/docs/api/java/util/Properties.html). The individual keys are defined within [PackageProperties][api.PackageProperties].


Example:

    <?xml version="1.0" encoding="utf-8" standalone="no"?>
    <!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
    <properties>
	<comment>FileVault Package Properties</comment>
	<entry key="createdBy">admin</entry>
	<entry key="generator">org.apache.jackrabbit.vault:3.7.0</entry>
	<entry key="name">acs-aem-commons-content</entry>
	<entry key="lastModified">2018-06-14T11:50:32.369+02:00</entry>
	<entry key="lastModifiedBy">admin</entry>
	<entry key="requiresRestart">false</entry>
	<entry key="acHandling">merge</entry>
	<entry key="created">2018-06-14T11:50:34.431+02:00</entry>
	<entry key="buildCount">1</entry>
	<entry key="version">3.15.0</entry>
	<entry key="requiresRoot">false</entry>
	<entry key="dependencies">day/cq60/product:cq-content:6.2.136</entry>
	<entry key="packageFormatVersion">2</entry>
	<entry key="description">Maven Multimodule project for ACS AEM Commons.</entry>
	<entry key="group">adobe/consulting</entry>
	<entry key="lastWrapped">2018-06-14T11:50:32.369+02:00</entry>
	<entry key="lastWrappedBy">admin</entry>
	</properties>

### Entries

| Property | Description | Required | Default
| -------- | ------- | ------ | ----- 
| name    | The name of the package. Determines the entry node under which this package would be uploaded to a repository. | yes | n/a
| group | The group of the package, determines the ancestor node under which the package would be uploaded to a repository.  | yes | n/a
| version | The version of the package | yes | n/a
| description | A description of the package | no | empty
| lastModified | A date string in the format `±YYYY-MM-DDThh:mm:ss.SSSTZD` specifying when the package has been last modified (see also [ISO8601][api.ISO8601]) | no | empty
| lastModifiedBy | A user name indicating who last modified this package | no | empty
| buildCount | An integer indicating how often this package has been built | no | empty
| dependencies | Comma-separated list of dependencies. Each dependency has the format `<group>:<name>:<version or versionrange>`. See [Dependencies][api.Dependency]. | no | empty
| dependencies-locations | Optional comma-separated list of dependencies' locations. Each item has the format `<package-id>=<uri>`. Currently [FileVault Package Maven Plugin](https://jackrabbit.apache.org/filevault-package-maven-plugin/index.html) is using a URI scheme for Maven coordinates like `maven:<groupId>:<artifactId>:<version>[:packaging[:<classifier>]]`. | no | empty
| created | A date string in the format `±YYYY-MM-DDThh:mm:ss.SSSTZD` specifying when the package has been created initially (see also [ISO8601][api.ISO8601]) | no | empty
| createdBy | A user name indicating who initially created this package | no | empty
| generator | Information about the generator of the package | no | for packages created by filevault: `org.apache.jackrabbit.vault:version`
| lastWrapped | A date string in the format `±YYYY-MM-DDThh:mm:ss.SSSTZD` specifying when the package has been last wrapped (i.e. rebuilt) (see also [ISO8601][api.ISO8601]) | no | empty
| lastWrappedBy | A user name indicating who last modified this package | no | empty
| acHandling | See [AccessControlHandling][api.AccessControlHandling]. Values must be given in lowercase letters. | no | ignore
| cndPattern | A [Java regular expression pattern](https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html) which specifies where to look for CND files within the given package (in addition to all `*.cnd` files below `META-INF/vault`) | no | `^/(apps|libs)/([^/]+/){1,2}nodetypes/.+\\.cnd$`
| requiresRoot | If set to `true` indicates that only admin sessions can install this package | no | `false`
| requiresRestart | If set to `true` indicates that the system should be restarted after this package has been installed | no | `false`
| noIntermediateSaves | If set to `true` indicates no intermediate saves should be performed while installing this package | no | `false`
| subPackageHandling | see [SubPackageHandling][api.SubPackageHandling] | no | `*;install`
| useBinaryReferences | If set to `true` indicates that [binary references](docview.html#Binary_Properties) should be used instead of the regular binaries. This also leads to using another default Vault FS [configuration](config.html). | no | `false`
| packageType | Possible values: `application`, `content`, `container` or `mixed`. Further details at [Package Types](packagetypes.html). | no | ?
| installhook.\<name\>.class | The FQN of the class which acts as an [install hook](installhooks.html). The `<name>` can be an arbitrary string (but must not contain a dot). | no | n/a
| packageFormatVersion | The version of this package as integer value. Versions newer than 2 are not yet supported during installation. | no | 2
| allowIndexDefinitions | If set to `true` indicates that the package contains an [Oak Index Definition](https://jackrabbit.apache.org/oak/docs/query/indexing.html#index-defnitions). Otherwise the package is not supposed to contain an index definition. This may be important to know prior to installation as installing/updating an index definition might have a severe performance impact especially on large repositories| no | false
| groupId | The Maven groupId of the underlying Maven module from which this package was built. Only set if built via the [FileVault Package Maven Plugin](https://jackrabbit.apache.org/filevault-package-maven-plugin/index.html) | no | n/a
| artifactId | The Maven artifactId of the underlying Maven module from which this package was built. Only set if built via the [FileVault Package Maven Plugin](https://jackrabbit.apache.org/filevault-package-maven-plugin/index.html) | no | n/a
| vault.feature.stashPrincipalPolicies | If set to `true` will always restore existing principal policies after installing a package with `AccessControlHandling` being set to anything but `CLEAR` or `OVERWRITE`. Only evaluated since 3.8.10 ([JCRVLT-683](https://issues.apache.org/jira/browse/JCRVLT-683)). | no | The system property `vault.feature.stashPrincipalPolicies` is used as default. This is described with its default value at [Configuration](config.html).

All values of enum types (`acHandling`, `packageType`) are always in lowercase letters.

Manifest File
---------------

Since version 3.1.40 ([JCRVLT-32](https://issues.apache.org/jira/browse/JCRVLT-32)) properties are now also partly stored within the `MANIFEST.MF` of the ZIP content package. Currently those are not evaluated during installation, though. All attributes which are currently being generated are listed in [AbstractExporter][api.AbstractExporter].

| Attribute | Description |
| -------- | ------- |
| Content-Package-Dependencies | Same as `dependencies` within the `properties.xml` |
| Content-Package-Dependencies-Locations | Same as `dependencies-locations` within the `properties.xml` |
| Content-Package-Description | Same as `description` within the `properties.xml` |
| Content-Package-Type | Same as `packageType` within the `properties.xml`
| Content-Package-Id | The string format of the [PackageId][api.PackageId] |
| Content-Package-Roots | All filter roots coming from the [filter.xml](filter.html) in a string. The individual roots are concatenated by `,` |
| Import-Package | Taken over from the [OSGi specification](https://www.osgi.org/bundle-headers-reference/). Contains a list of all Java packages being used by scripts/classes contained in this content package. Currently only being generated by the [filevault-package-maven-plugin](http://jackrabbit.apache.org/filevault-package-maven-plugin/) but not through the exporter API.

[api.PackageProperties]: apidocs/org/apache/jackrabbit/vault/packaging/PackageProperties.html
[api.AccessControlHandling]: apidocs/org/apache/jackrabbit/vault/fs/io/AccessControlHandling
[api.SubPackageHandling]: apidocs/org/apache/jackrabbit/vault/packaging/SubPackageHandling.html
[api.ISO8601]: https://jackrabbit.apache.org/api/2.12/org/apache/jackrabbit/util/ISO8601.html
[api.Dependency]: apidocs/org/apache/jackrabbit/vault/packaging/Dependency.html
[api.AbstractExporter]: apidocs/org/apache/jackrabbit/vault/fs/io/AbstractExporter.html
[api.PackageId]: apidocs/org/apache/jackrabbit/vault/packaging/PackageId.html
