Define global Asciidoc attributes once

This commit defines the doc-root and api-spring-framework attributes
once in docs.gradle instead of duplicating them in each *.adoc file.

This commit also introduces a new docs-spring-framework global
attribute.

Author: sbrannen

gradle/docs.gradle

@@ -127,6 +127,8 @@ task extractDocResources(type: Copy, dependsOn: downloadResources) {
 }
 
 asciidoctorj {
+	def docRoot = 'https://docs.spring.io'
+	def docsSpringFramework = "${docRoot}/spring-framework/docs/${project.version}"
 	version = '2.4.1'
 	fatalWarnings ".*"
 	options doctype: 'book', eruby: 'erubis'
@@ -144,7 +146,10 @@ asciidoctorj {
 			stylesdir: 'css/',
 			stylesheet: 'stylesheet.css',
 			'spring-version': project.version,
-			'spring-framework-main-code': 'https://github.com/spring-projects/spring-framework/tree/main'
+			'spring-framework-main-code': 'https://github.com/spring-projects/spring-framework/tree/main',
+			'doc-root': docRoot,
+			'docs-spring-framework': docsSpringFramework,
+			'api-spring-framework': "${docsSpringFramework}/javadoc-api/org/springframework"
 	])
 }
 

src/docs/asciidoc/appendix.adoc

@@ -1,7 +1,5 @@
 [[appendix]]
 = Appendix
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :toc: left
 :toclevels: 4
 :tabsize: 4

src/docs/asciidoc/core.adoc

@@ -1,7 +1,5 @@
 [[spring-core]]
 = Core Technologies
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :toc: left
 :toclevels: 4
 :tabsize: 4

src/docs/asciidoc/core/core-appendix.adoc

@@ -1,6 +1,3 @@
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
-
 = Appendix
 
 

src/docs/asciidoc/data-access.adoc

@@ -1,7 +1,5 @@
 [[spring-data-tier]]
 = Data Access
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :toc: left
 :toclevels: 4
 :tabsize: 4

src/docs/asciidoc/index.adoc

@@ -1,5 +1,4 @@
 = Spring Framework Documentation
-:doc-root: https://docs.spring.io
 
 [horizontal]
 <<overview.adoc#overview, Overview>> :: history, design philosophy, feedback,
@@ -22,11 +21,11 @@ https://github.com/spring-projects/spring-framework/wiki[*Wiki*] :: What's New,
 and other cross-version information.
 
 ifdef::backend-html5[]
-NOTE: This documentation is also available as {doc-root}/spring-framework/docs/{spring-version}/reference/pdf/index.pdf[PDF].
+NOTE: This documentation is also available as {docs-spring-framework}/reference/pdf/index.pdf[PDF].
 endif::[]
 
 ifdef::backend-pdf[]
-NOTE: This documentation is also available as {doc-root}/spring-framework/docs/{spring-version}/reference/html/index.html[HTML].
+NOTE: This documentation is also available as {docs-spring-framework}/reference/html/index.html[HTML].
 endif::[]
 
 Rod Johnson, Juergen Hoeller, Keith Donald, Colin Sampaleanu, Rob Harrop, Thomas Risberg,

src/docs/asciidoc/integration.adoc

@@ -1,7 +1,5 @@
 [[spring-integration]]
 = Integration
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :doc-spring-amqp: {doc-root}/spring-amqp/docs/current/reference
 :doc-spring-gemfire: {doc-root}/spring-gemfire/docs/current/reference
 :toc: left

src/docs/asciidoc/languages.adoc

@@ -1,7 +1,5 @@
 [[languages]]
 = Language Support
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :toc: left
 :toclevels: 4
 :tabsize: 4

src/docs/asciidoc/languages/kotlin.adoc

@@ -42,8 +42,8 @@ Kotlin https://kotlinlang.org/docs/reference/extensions.html[extensions] provide
 to extend existing classes with additional functionality. The Spring Framework Kotlin APIs
 use these extensions to add new Kotlin-specific conveniences to existing Spring APIs.
 
-The {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/[Spring Framework KDoc API] lists
-and documents all available the Kotlin extensions and DSLs.
+The {docs-spring-framework}/kdoc-api/spring-framework/[Spring Framework KDoc API] lists
+and documents all available Kotlin extensions and DSLs.
 
 NOTE: Keep in mind that Kotlin extensions need to be imported to be used. This means,
 for example, that the `GenericApplicationContext.registerBean` Kotlin extension
@@ -209,7 +209,7 @@ the constructor parameters will be autowired by type:
 ----
 
 In order to allow a more declarative approach and cleaner syntax, Spring Framework provides
-a {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.context.support/-bean-definition-dsl/[Kotlin bean definition DSL]
+a {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.context.support/-bean-definition-dsl/[Kotlin bean definition DSL]
 It declares an `ApplicationContextInitializer` through a clean declarative API,
 which lets you deal with profiles and `Environment` for customizing
 how beans are registered.
@@ -275,9 +275,9 @@ for more details and up-to-date information. See also the experimental Kofu DSL
 
 Spring Framework comes with a Kotlin router DSL available in 3 flavors:
 
-* WebMvc.fn DSL with {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.servlet.function/router.html[router { }]
-* WebFlux.fn <<web-reactive#webflux-fn, Reactive>> DSL with {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/router.html[router { }]
-* WebFlux.fn <<Coroutines>> DSL with {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/co-router.html[coRouter { }]
+* WebMvc.fn DSL with {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.servlet.function/router.html[router { }]
+* WebFlux.fn <<web-reactive#webflux-fn, Reactive>> DSL with {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/router.html[router { }]
+* WebFlux.fn <<Coroutines>> DSL with {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/co-router.html[coRouter { }]
 
 These DSL let you write clean and idiomatic Kotlin code to build a `RouterFunction` instance as the following example shows:
 
@@ -408,10 +408,10 @@ Spring Framework provides support for Coroutines on the following scope:
 
 * https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-deferred/index.html[Deferred] and https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/-flow/index.html[Flow] return values support in Spring MVC and WebFlux annotated `@Controller`
 * Suspending function support in Spring MVC and WebFlux annotated `@Controller`
-* Extensions for WebFlux {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.reactive.function.client/index.html[client] and {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/index.html[server] functional API.
-* WebFlux.fn {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/co-router.html[coRouter { }] DSL
+* Extensions for WebFlux {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.reactive.function.client/index.html[client] and {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/index.html[server] functional API.
+* WebFlux.fn {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/co-router.html[coRouter { }] DSL
 * Suspending function and `Flow` support in RSocket `@MessageMapping` annotated methods
-* Extensions for {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.messaging.rsocket/index.html[`RSocketRequester`]
+* Extensions for {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.messaging.rsocket/index.html[`RSocketRequester`]
 
 === Dependencies
 
@@ -554,7 +554,7 @@ class CoroutinesViewController(banner: Banner) {
 
 === WebFlux.fn
 
-Here is an example of Coroutines router defined via the {doc-root}/spring-framework/docs/{spring-version}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/co-router.html[coRouter { }] DSL and related handlers.
+Here is an example of Coroutines router defined via the {docs-spring-framework}/kdoc-api/spring-framework/org.springframework.web.reactive.function.server/co-router.html[coRouter { }] DSL and related handlers.
 
 [source,kotlin,indent=0]
 ----

src/docs/asciidoc/testing.adoc

@@ -1,7 +1,5 @@
 [[testing]]
 = Testing
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :doc-spring-boot: {doc-root}/spring-boot/docs/current/reference
 :toc: left
 :toclevels: 4

src/docs/asciidoc/testing/testing-webtestclient.adoc

@@ -1,7 +1,5 @@
 [[webtestclient]]
 = WebTestClient
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 
 `WebTestClient` is an HTTP client designed for testing server applications. It wraps
 Spring's <<web-reactive.adoc#webflux-client, WebClient>> and uses it to perform requests

src/docs/asciidoc/web-reactive.adoc

@@ -1,7 +1,5 @@
 [[spring-web-reactive]]
 = Web on Reactive Stack
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :toc: left
 :toclevels: 4
 :tabsize: 4

src/docs/asciidoc/web.adoc

@@ -1,7 +1,5 @@
 [[spring-web]]
 = Web on Servlet Stack
-:doc-root: https://docs.spring.io
-:api-spring-framework: {doc-root}/spring-framework/docs/{spring-version}/javadoc-api/org/springframework
 :toc: left
 :toclevels: 4
 :tabsize: 4