Update build-scripts to enable hotspot & temurin jdk(head) version branch builds

configureBuild.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# shellcheck disable=SC1091
+# shellcheck disable=SC1091,SC2155
 # ********************************************************************************
 # Copyright (c) 2018 Contributors to the Eclipse Foundation
 #
@@ -170,6 +170,7 @@ setVariablesForConfigure() {
 setRepository() {
 
   local suffix
+  local githubRepoName=$(getOpenjdkGithubRepoName "${BUILD_CONFIG[OPENJDK_FOREST_NAME]}")
 
   # Location of Extensions for OpenJ9 project
   if [[ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_OPENJ9}" ]]; then
@@ -200,12 +201,12 @@ setRepository() {
       || [ "${BUILD_CONFIG[OPENJDK_CORE_VERSION]}" == "${JDK11_CORE_VERSION}" ]; then
       suffix="openjdk/riscv-port-${BUILD_CONFIG[OPENJDK_FOREST_NAME]}"
     else
-      suffix="openjdk/${BUILD_CONFIG[OPENJDK_FOREST_NAME]}"
+      suffix="openjdk/${githubRepoName}"
     fi
   elif [[ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_TEMURIN}" ]]; then
-    suffix="adoptium/${BUILD_CONFIG[OPENJDK_FOREST_NAME]}"
+    suffix="adoptium/${githubRepoName}"
   else
-    suffix="openjdk/${BUILD_CONFIG[OPENJDK_FOREST_NAME]}"
+    suffix="openjdk/${githubRepoName}"
   fi
 
   local repository
@@ -219,6 +220,30 @@ setRepository() {
   repository="$(echo "${repository}" | awk '{print tolower($0)}')"
 
   BUILD_CONFIG[REPOSITORY]="${BUILD_CONFIG[REPOSITORY]:-${repository}}"
+
+  echo "Using source repository ${BUILD_CONFIG[REPOSITORY]}"
+}
+
+# Given a forest_name (eg.jdk23), return the corresponding repository name
+getOpenjdkGithubRepoName() {
+  local forest_name="$1"
+  local repoName=""
+
+  # "Update" versions are currently in a repository with the name of the forest
+  if [[ ${forest_name} == *u ]]; then
+    repoName="${forest_name}"
+  else
+    local featureNumber=$(echo "${forest_name}" | tr -d "[:alpha:]")
+
+    # jdk-23+ stabilisation versions are within the jdk(head) repository
+    if [[ "${featureNumber}" -ge 23 ]]; then
+      repoName="jdk"
+    else
+      repoName="${forest_name}"
+    fi
+  fi
+
+  echo "${repoName}"
 }
 
 # Specific architectures need to have special build settings

sbin/common/common.sh

@@ -15,8 +15,17 @@
 # shellcheck disable=SC2155
 # shellcheck disable=SC2153
 function setOpenJdkVersion() {
+  # forest_name represents the JDK version with "u" suffix for an "update version"
+  #
+  # It no longer relates directly to the openjdk repository name, as the jdk(head) repository
+  # now has version branches for jdk-23+
+  #
+  # Format: jdkNN[u]
+  #
   local forest_name=$1
 
+  echo "Setting version based on forest_name=${forest_name}"
+
   # The argument passed here have actually very strict format of jdk8, jdk8u..., jdk
   # the build may fail later if this is not honoured.
   # If your repository has a different name, you can use --version or build from dir/snapshot
@@ -81,6 +90,45 @@ function setOpenJdkVersion() {
   # feature number e.g. 11
   BUILD_CONFIG[OPENJDK_FEATURE_NUMBER]=${featureNumber}
 
+  # Set default branch based on JDK forest and feature number
+  setBranch
+}
+
+# Set the default BUILD_CONFIG[BRANCH] for the jdk version being built
+# For "hotspot" and "Temurin" builds of non-"u" jdk-23+ the branch is dev_<version>
+function setBranch() {
+
+  # Which repo branch to build, e.g. dev by default for temurin, "openj9" for openj9
+  local branch="master"
+  local adoptium_mirror_branch="dev"
+
+  # non-u (and non-tip) jdk-23+ hotspot and adoptium version source is within a "version" branch in the "jdk" repository
+  if [[ ${BUILD_CONFIG[OPENJDK_FOREST_NAME]} != *u ]] && [[ ${BUILD_CONFIG[OPENJDK_FOREST_NAME]} != "jdk" ]] && [[ "${BUILD_CONFIG[OPENJDK_FEATURE_NUMBER]}" -ge 23 ]]; then
+    branch="jdk${BUILD_CONFIG[OPENJDK_FEATURE_NUMBER]}"
+    adoptium_mirror_branch="dev_jdk${BUILD_CONFIG[OPENJDK_FEATURE_NUMBER]}"
+  fi
+
+  if [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_TEMURIN}" ]; then
+    branch="${adoptium_mirror_branch}"
+  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_OPENJ9}" ]; then
+    branch="openj9";
+  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_DRAGONWELL}" ]; then
+    branch="master";
+  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_FAST_STARTUP}" ]; then
+    branch="master";
+  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_CORRETTO}" ]; then
+    branch="develop";
+  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_BISHENG}" ]; then
+    if [ "${BUILD_CONFIG[OS_ARCHITECTURE]}" == "riscv64" ] ; then
+      branch="risc-v"
+    else
+      branch="master"
+    fi
+  fi
+
+  BUILD_CONFIG[BRANCH]=${BUILD_CONFIG[BRANCH]:-$branch}
+
+  echo "Default branch set to BUILD_CONFIG[BRANCH]=${BUILD_CONFIG[BRANCH]}"
 }
 
 function crossPlatformRealPath() {

sbin/common/config_init.sh

@@ -393,33 +393,6 @@ function parseConfigurationArguments() {
         *) echo >&2 "Invalid build.sh option: ${opt}"; exit 1;;
       esac
     done
-
-    setBranch
-}
-
-function setBranch() {
-
-  # Which repo branch to build, e.g. dev by default for temurin, "openj9" for openj9
-  local branch="master"
-  if [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_TEMURIN}" ]; then
-    branch="dev"
-  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_OPENJ9}" ]; then
-    branch="openj9";
-  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_DRAGONWELL}" ]; then
-    branch="master";
-  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_FAST_STARTUP}" ]; then
-    branch="master";
-  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_CORRETTO}" ]; then
-    branch="develop";
-  elif [ "${BUILD_CONFIG[BUILD_VARIANT]}" == "${BUILD_VARIANT_BISHENG}" ]; then
-    if [ "${BUILD_CONFIG[OS_ARCHITECTURE]}" == "riscv64" ] ; then
-      branch="risc-v"
-    else
-      branch="master"
-    fi
-  fi
-
-  BUILD_CONFIG[BRANCH]=${BUILD_CONFIG[BRANCH]:-$branch}
 }
 
 # Set the local dir if used