chore(Windows): add -DryRun option to build.ps1 script

[lemeurherve]

This PR adds a DryRun switch argument that can be passed to the Windows build.ps1 script, allowing to run it in dry-run mode.

Testing done

Normal build: https://ci.jenkins.io/job/Packaging/job/docker-agent/job/PR-545/9/

Replayed build on Windows only, with -DryRun activated: https://ci.jenkins.io/job/Packaging/job/docker-agent/job/PR-545/8/console

Replay diff:

--- old/Jenkinsfile
+++ new/Jenkinsfile
@@ -24,7 +24,7 @@
                 axes {
                     axis {
                         name 'IMAGE_TYPE'
-                        values 'linux', 'nanoserver-1809', 'nanoserver-ltsc2019', 'nanoserver-ltsc2022', 'windowsservercore-1809', 'windowsservercore-ltsc2019', 'windowsservercore-ltsc2022'
+                        values 'nanoserver-1809', 'nanoserver-ltsc2019', 'nanoserver-ltsc2022', 'windowsservercore-1809', 'windowsservercore-ltsc2019', 'windowsservercore-ltsc2022'
                     }
                 }
                 stages {
@@ -63,7 +63,7 @@
                                             // If the tests are passing for Linux AMD64, then we can build all the CPU architectures
                                             sh 'docker buildx bake --file docker-bake.hcl linux'
                                         } else {
-                                            powershell '& ./build.ps1 test'
+                                            powershell '& ./build.ps1 -DryRun test'
                                         }
                                     }
                                 }
@@ -75,12 +75,13 @@
                             }
                             stage('Deploy to DockerHub') {
                                 // This stage is the "CD" and should only be run when a tag triggered the build
-                                when {
-                                    buildingTag()
-                                }
+                                // when {
+                                //     buildingTag()
+                                // }
                                 steps {
                                     script {
-                                        def tagItems = env.TAG_NAME.split('-')
+                                        def exampleTagName = '3186.vc3b_7249b_87eb_-1'
+                                        def tagItems = exampleTagName.split('-') // env.TAG_NAME.split('-')
                                         if(tagItems.length == 2) {
                                             def remotingVersion = tagItems[0]
                                             def buildNumber = tagItems[1]
@@ -93,7 +94,7 @@
                                                     ./build.sh -r ${remotingVersion} -b ${buildNumber} -d publish
                                                     """
                                                 } else {
-                                                    powershell "& ./build.ps1 -PushVersions -RemotingVersion $remotingVersion -BuildNumber $buildNumber -DisableEnvProps publish"
+                                                    powershell "& ./build.ps1 -DryRun -PushVersions -RemotingVersion $remotingVersion -BuildNumber $buildNumber -DisableEnvProps publish"
                                                 }
                                             }
                                         }

Outputs

Stage "build and test" calling ./build.ps1 -DryRun test:

= PREPARE: List of jenkins4eval/agent images and tags to be processed:
 {
     "jdk21-nanoserver-ltsc2022":  {
                                       "Tags":  [
                                                    "jdk21-nanoserver-ltsc2022",
                                                    "3186.vc3b_7249b_87eb_-1-jdk21-nanoserver-ltsc2022"
                                                ]
                                   },
     "jdk11-nanoserver-ltsc2022":  {
                                       "Tags":  [
                                                    "jdk11-nanoserver-ltsc2022",
                                                    "3186.vc3b_7249b_87eb_-1-jdk11-nanoserver-ltsc2022"
                                                ]
                                   },
     "jdk17-nanoserver-ltsc2022":  {
                                       "Tags":  [
                                                    "jdk17-nanoserver-ltsc2022",
                                                    "3186.vc3b_7249b_87eb_-1-jdk17-nanoserver-ltsc2022",
                                                    "nanoserver-ltsc2022"
                                                ]
                                   }
 }
 = BUILD: Building all images...
 (dry-run) docker-compose --file=build-windows.yaml build --parallel --pull
 = BUILD: Finished building all image
 = TEST: (dry-run) test harness
 Build finished successfully

Stage "deploy" calling ./build.ps1 -DryRun -RemotingVersion 3186.vc3b_7249b_87eb_ -BuildNumber 1 -DisableEnvProps publish:

= BUILD: Building all images...
 (dry-run) docker-compose --file=build-windows.yaml build --parallel --pull
 = BUILD: Finished building all image
 = PUBLISH: (dry-run) docker tag then publish 'jdk21-nanoserver-ltsc2022 jenkins4eval/agent:jdk21-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk21-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-jdk21-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk21-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-jdk21-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk21-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-3186.vc3b_7249b_87eb_-1-jdk21-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk11-nanoserver-ltsc2022 jenkins4eval/agent:jdk11-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk11-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-jdk11-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk11-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-jdk11-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk11-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-3186.vc3b_7249b_87eb_-1-jdk11-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk17-nanoserver-ltsc2022 jenkins4eval/agent:jdk17-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk17-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-jdk17-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk17-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-jdk17-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk17-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-3186.vc3b_7249b_87eb_-1-jdk17-nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk17-nanoserver-ltsc2022 jenkins4eval/agent:nanoserver-ltsc2022'
 = PUBLISH: (dry-run) docker tag then publish 'jdk17-nanoserver-ltsc2022 jenkins4eval/agent:3186.vc3b_7249b_87eb_-1-nanoserver-ltsc2022'
 Build finished successfully

Note: I'm aware of tags containing a duplicated remoting+build_number in them (3186.vc3b_7249b_87eb_-1-3186.vc3b_7249b_87eb_-1): #546

This PR is a preliminary step which helped me fixing this issue, fixed in #547.

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