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* Snapshot repo has changed * Fix a bug where pkl-codegen-java download link points to Sonatype instead of GitHub Not in the PR: we also need to fix the snapshot download location; but haven't figured out yet what the correct link is.
295 lines
11 KiB
Plaintext
295 lines
11 KiB
Plaintext
= Pkldoc
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include::ROOT:partial$component-attributes.adoc[]
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:uri-pkl-doc-maven: {uri-maven-docsite}/artifact/org.pkl-lang/pkl-doc
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:uri-DocsiteInfo: {uri-pkl-stdlib-docs}/DocsiteInfo/
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:uri-DocPackageInfo: {uri-pkl-stdlib-docs}/DocPackageInfo/
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:uri-CliDocGenerator: {uri-pkl-doc-main-sources}/CliDocGenerator.kt
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:uri-DocGenerator: {uri-pkl-doc-main-sources}/DocGenerator.kt
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:uri-pkldoc-macos-amd64-download: {uri-sonatype-snapshot-download}&a=pkldoc-macos-amd64&e=bin
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:uri-pkldoc-macos-aarch64-download: {uri-sonatype-snapshot-download}&a=pkldoc-macos-aarch64&e=bin
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:uri-pkldoc-linux-amd64-download: {uri-sonatype-snapshot-download}&a=pkldoc-linux-amd64&e=bin
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:uri-pkldoc-linux-aarch64-download: {uri-sonatype-snapshot-download}&a=pkldoc-linux-aarch64&e=bin
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:uri-pkldoc-alpine-download: {uri-sonatype-snapshot-download}&a=pkldoc-alpine-linux-amd64&e=bin
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:uri-pkldoc-windows-download: {uri-sonatype-snapshot-download}&a=pkldoc-windows-amd64&e=exe
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:uri-pkldoc-java-download: {uri-sonatype-snapshot-download}&a=pkldoc-java&e=jar
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ifdef::is-release-version[]
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:uri-pkldoc-macos-amd64-download: {github-releases}/pkldoc-macos-amd64
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:uri-pkldoc-macos-aarch64-download: {github-releases}/pkldoc-macos-aarch64
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:uri-pkldoc-linux-amd64-download: {github-releases}/pkldoc-linux-amd64
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:uri-pkldoc-linux-aarch64-download: {github-releases}/pkldoc-linux-aarch64
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:uri-pkldoc-alpine-download: {github-releases}/pkldoc-alpine-linux-amd64
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:uri-pkldoc-windows-download: {github-releases}/pkldoc-windows-amd64.exe
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:uri-pkldoc-java-download: {github-releases}/jpkldoc
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endif::[]
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_Pkldoc_ is a documentation website generator that produces navigable and searchable API documentation for Pkl modules.
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Pkldoc's look and feel is inspired by Scaladoc.
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To get a first impression, browse the link:{uri-pkl-stdlib-docs-index}[Standard Library API Docs].
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== Features
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Pkldoc offers the following features:
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Code navigation::
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Easily navigate between hyperlinked modules, classes, functions, and properties.
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Member search::
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Search the entire documentation by member name.
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See the next section for details.
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Comment folding::
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Expand and collapse multi-paragraph doc comments.
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Markdown support::
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Write doc comments in Markdown.
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See xref:language-reference:index.adoc#doc-comments[Doc Comments] for details.
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Member links::
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Link to other members from your doc comments.
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See xref:language-reference:index.adoc#member-links[Member Links] for details.
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Member anchors::
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Get a member's deep link by clicking its anchor symbol and copying the URL in the address bar.
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Cross-site links::
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Enable cross-site member links simply by providing the URLs of other Pkldoc websites such as the standard library docs.
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[[member-search]]
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=== Member Search
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To get a first impression of Pkldoc's member search, let's try and find property `MinFiniteFloat` in the link:{uri-pkl-stdlib-docs-index}[standard library docs]:
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image::pkldoc-search.gif[title="Searching the standard library docs."]
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To start a search, press kbd:[s]. Search results are displayed as you type.
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To limit the search to a particular kind of member, prefix the search term with _m:_ for modules, _c:_ for classes, _f:_ for functions, or _p:_ for properties.
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For example, search term _p:min_ finds property `MinFiniteFloat` but not function `min()`.
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Camel case matching is always enabled and does not require capitalizing the search term.
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For example, search term _mff_ matches properties `MinFiniteFloat` and `MaxFiniteFloat`.
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Both search terms and member names may contain non-ASCII Unicode characters.
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As characters are normalized to their base form, search term _res_ matches `Réseau`.
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The `@AlsoKnownAs` annotation, defined and used throughout the _pkl.base_ module, documents alternative names for a member used in other programming languages or earlier versions of a module.
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Pkldoc's search takes these alternative names into account.
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For example, searching the standard library docs for _count_ or _size_ finds property `String.length`.
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Feel free to use `@AlsoKnownAs` in your own modules.
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Search results are categorized into _exact_ and _other_ (partial) matches.
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On module and class pages, additional categories show matches in the same module and class.
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Within a category, results are ranked by similarity with the search term.
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To navigate to a search result, either click the result or select it with the up/down arrow keys and press kbd:[Enter].
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== Installation
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Pkldoc is offered as Gradle plugin, Java library, and CLI.
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=== Gradle Plugin
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See xref:pkl-gradle:index.adoc#installation[Installation] in the _Gradle Plugin_ chapter.
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[[install-library]]
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=== Java Library
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The `pkl-doc` library is available {uri-pkl-doc-maven}[from Maven Central].
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It requires Java 17 or higher.
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ifndef::is-release-version[]
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NOTE: Snapshots are published to repository `{uri-snapshot-repo}`.
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endif::[]
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==== Gradle
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To use the library in a Gradle project, declare the following dependency:
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[tabs]
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====
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Kotlin::
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+
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.build.gradle.kts
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[source,kotlin,subs="+attributes"]
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----
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dependencies {
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implementation("org.pkl-lang:pkl-doc:{pkl-artifact-version}")
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}
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repositories {
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ifdef::is-release-version[]
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mavenCentral()
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endif::[]
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ifndef::is-release-version[]
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maven(url = "{uri-sonatype}")
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endif::[]
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}
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----
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Groovy::
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+
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.build.gradle
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[source,groovy,subs="+attributes"]
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----
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dependencies {
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implementation "org.pkl-lang:pkl-doc:{pkl-artifact-version}"
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}
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repositories {
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ifdef::is-release-version[]
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mavenCentral()
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endif::[]
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ifndef::is-release-version[]
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maven { url "{uri-sonatype}" }
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endif::[]
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}
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----
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====
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==== Maven
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To use the library in a Maven project, declare the following dependency:
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.pom.xml
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[source,xml,subs="+attributes"]
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----
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<project>
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<dependency>
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<groupId>org.pkl-lang</groupId>
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<artifactId>pkl-doc</artifactId>
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<version>{pkl-artifact-version}</version>
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</dependency>
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ifndef::is-release-version[]
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<repositories>
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<repository>
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<id>sonatype-s01</id>
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<name>Sonatype S01</name>
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<url>{uri-sonatype}</url>
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</repository>
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</repositories>
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endif::[]
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</project>
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----
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[[install-cli]]
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=== CLI
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The CLI comes in multiple flavors:
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* Native macOS executable for amd64 (tested on macOS 10.15)
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* Native Linux executable for amd64
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* Native Linux executable for aarch64
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* Native Alpine Linux executable for amd64 (cross-compiled and tested on Oracle Linux 8)
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* Native Windows executable for amd64 (tested on Windows Server 2022)
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* Java executable (tested with Java 17/21 on macOS and Oracle Linux)
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.What is the Difference Between the Linux and Alpine Linux Executables?
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[NOTE]
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====
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The Linux executable is dynamically linked against _glibc_ and _libstdc{plus}{plus}_,
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whereas, the Alpine Linux executable is statically linked against _musl libc_ and _libstdc{plus}{plus}_.
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====
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The Java executable works on multiple platforms and has a smaller binary size than the native executables.
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However, it requires a Java 17 (or higher) runtime on the system path, and has a noticeable startup delay.
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Download links:
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* macOS aarch64: {uri-pkldoc-macos-aarch64-download}
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* macOS amd64: {uri-pkldoc-macos-amd64-download}
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* Linux aarch64: {uri-pkldoc-linux-aarch64-download}
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* Linux amd64: {uri-pkldoc-linux-amd64-download}
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* Alpine Linux amd64: {uri-pkldoc-alpine-download}
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* Windows amd64: {uri-pkldoc-windows-download}
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[[usage]]
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== Usage
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The Pkldoc tool is offered as Gradle plugin, Java library, and CLI.
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It can generate documentation either for modules directly, or generate documentation for _package uris_.
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The tool requires an argument of a module named _docsite-info.pkl_, that amends link:{uri-DocsiteInfo}[pkl.DocsiteInfo].
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[discrete]
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==== Generating documentation for modules directly
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Modules can be passed directly to Pkldoc for documentation generation.
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When generating documentation for these modules, there must also be a module named _doc-package-info.pkl_ that amends link:{uri-DocPackageInfo}[pkl.DocPackageInfo].
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The _doc-package-info.pkl_ module defines a _doc package_, which describes how modules are grouped and versioned together.
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When generating documentation for modules, each such module must declare a module name that starts with a package name declared in a _doc-package-info.pkl_ module.
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For example, the following are valid module declarations for package _com.example_:
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* `module com.example.Birds`
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* `module com.example.Birds.Parrot`
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The part of the module name that comes after the package name
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must match the module's relative path in its source code repository.
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For example, module _com.example.Bird.Parrot_ is expected to be found at _$sourceCode/Bird/Parrot.pkl_,
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where _sourceCode_ is configured in _doc-package-info.pkl_.
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[discrete]
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==== Generating documentation for a _package_
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Pkldoc can alternatively generate documentation for a _package_.
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When generating documentation for a package, the URI of the package must be passed as an argument to Pkldoc.
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These packages must already be published and downloadable.
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When generating documentation for packages, modules within a package must declare a module name that is prefixed by the package's name declared in the `Package.name` property of its `PklProject` file.
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For example, the following are valid module declarations for package `com.example`:
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* `module com.example.Birds`
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* `module com.example.Birds.Parrot`
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The part of the module name that comes after the package name
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must match the module's relative path in its source code repository.
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For example, module _com.example.Bird.Parrot_ is expected to be found at _$sourceCode/Bird/Parrot.pkl_,
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where _sourceCode_ is configured in the `Package.sourceCode` property of its `PklProject` file.
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=== Gradle Plugin
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See xref:pkl-gradle:index.adoc#pkldoc-generation[Pkldoc Generation] in the _Gradle Plugin_ chapter.
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=== Java Library
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The Java library offers two APIs:
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* A high-level link:{uri-CliDocGenerator}[CliDocGenerator] API whose feature set corresponds to the CLI.
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* A low-level link:{uri-DocGenerator}[DocGenerator] API that offers additional features and control.
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For more information, refer to the Javadoc documentation.
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=== CLI
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*Synopsis:* `pkldoc [<options>] <modules>`
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`<modules>`::
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The absolute or relative URIs of docsite descriptors, package descriptors, and the modules for which to generate documentation.
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Relative URIs are resolved against the working directory.
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==== Options
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.-o, --output-dir
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[%collapsible]
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====
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Default: (none) +
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Example: `pkldoc` +
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The directory where generated documentation is placed.
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====
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.--no-symlinks
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[%collapsible]
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====
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Create copies of files and directories instead of symbolic links.
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In particular, this affects how the "current" directories containing documentation content for the last generated version should be created.
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By default, a symbolic link is created pointing to the last generated version. If symlinks are disabled, a full copy of the last generated version is created.
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====
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Common CLI options:
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include::../../pkl-cli/partials/cli-common-options.adoc[]
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[[full-example]]
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== Full Example
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For a ready-to-go example with full source code and detailed walkthrough,
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see link:{uri-pkldoc-example}[pkldoc] in the _pkl-jvm-examples_ repository.
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