Enhance Bun integration in Jenkinsfile

- Introduced helper functions to manage Bun installation paths for both Unix and Windows environments.
- Wrapped Bun installation and dependency setup stages in a new `withBun` closure for improved readability and organization.
- Ensured consistent handling of Bun installation across different stages of the CI pipeline.

Jenkinsfile

@@ -2,6 +2,20 @@ properties([
     buildDiscarder(logRotator(numToKeepStr: '20'))
 ])
 
+def bunBinDir() {
+    if (isUnix()) {
+        return "${env.HOME}/.bun/bin"
+    }
+    return "${env.USERPROFILE}/.bun/bin"
+}
+
+def withBun(Closure body) {
+    def sep = isUnix() ? ':' : ';'
+    withEnv(["PATH=${bunBinDir()}${sep}${env.PATH}"]) {
+        body()
+    }
+}
+
 def ensureBunInstalled() {
     if (isUnix()) {
         sh '''
@@ -13,14 +27,12 @@ def ensureBunInstalled() {
             fi
             bun -v
         '''
-        env.PATH = "${env.HOME}/.bun/bin:${env.PATH}"
     } else {
         bat '''
-            where bun >nul 2>nul || powershell -c "irm bun.sh/install.ps1 | iex"
+            where bun >nul 2>nul || %SystemRoot%/System32/WindowsPowerShell/v1.0/powershell.exe -NoProfile -ExecutionPolicy Bypass -Command "irm bun.sh/install.ps1 | iex"
             set PATH=%USERPROFILE%/.bun/bin;%PATH%
             bun -v
         '''
-        env.PATH = "${env.USERPROFILE}/.bun/bin;${env.PATH}"
     }
 }
 
@@ -43,20 +55,22 @@ def buildLinux() {
                 checkout scm
             }
 
-            stage('Setup Bun (Ubuntu)') {
-                ensureBunInstalled()
-            }
+            withBun {
+                stage('Setup Bun (Ubuntu)') {
+                    ensureBunInstalled()
+                }
 
-            stage('Install Dependencies (Ubuntu)') {
-                sh 'bun install --frozen-lockfile'
-            }
+                stage('Install Dependencies (Ubuntu)') {
+                    sh 'bun install --frozen-lockfile'
+                }
 
-            stage('Write Build Metadata (Ubuntu)') {
-                writeBuildMetadata()
-            }
+                stage('Write Build Metadata (Ubuntu)') {
+                    writeBuildMetadata()
+                }
 
-            stage('Build (Ubuntu)') {
-                sh "VITE_BUILD_NUMBER=${env.BUILD_NUMBER} NODE_ENV=production bun run build:linux"
+                stage('Build (Ubuntu)') {
+                    sh "VITE_BUILD_NUMBER=${env.BUILD_NUMBER} NODE_ENV=production bun run build:linux"
+                }
             }
 
             stage('Archive Artifacts (Ubuntu)') {
@@ -75,27 +89,29 @@ def buildOnLabel(label, buildCommand) {
                 checkout scm
             }
 
-            stage("Setup Bun (${label})") {
-                ensureBunInstalled()
-            }
-
-            stage("Install Dependencies (${label})") {
-                if (isUnix()) {
-                    sh 'bun install --frozen-lockfile'
-                } else {
-                    bat 'bun install --frozen-lockfile'
+            withBun {
+                stage("Setup Bun (${label})") {
+                    ensureBunInstalled()
                 }
-            }
 
-            stage("Write Build Metadata (${label})") {
-                writeBuildMetadata()
-            }
+                stage("Install Dependencies (${label})") {
+                    if (isUnix()) {
+                        sh 'bun install --frozen-lockfile'
+                    } else {
+                        bat 'bun install --frozen-lockfile'
+                    }
+                }
 
-            stage("Build (${label})") {
-                if (isUnix()) {
-                    sh "VITE_BUILD_NUMBER=${env.BUILD_NUMBER} NODE_ENV=production ${buildCommand}"
-                } else {
-                    bat "set VITE_BUILD_NUMBER=${env.BUILD_NUMBER} && set NODE_ENV=production && ${buildCommand}"
+                stage("Write Build Metadata (${label})") {
+                    writeBuildMetadata()
+                }
+
+                stage("Build (${label})") {
+                    if (isUnix()) {
+                        sh "VITE_BUILD_NUMBER=${env.BUILD_NUMBER} NODE_ENV=production ${buildCommand}"
+                    } else {
+                        bat "set VITE_BUILD_NUMBER=${env.BUILD_NUMBER} && set NODE_ENV=production && ${buildCommand}"
+                    }
                 }
             }
 
@@ -110,14 +126,16 @@ def setBuildNameFromPackageVersion() {
     node('ubuntu') {
         stage('Set Build Name') {
             checkout scm
-            ensureBunInstalled()
-            def version = sh(
-                script: "bun --eval \"console.log(JSON.parse(await Bun.file('package.json').text()).version)\"",
-                returnStdout: true
-            ).trim()
-            def buildName = "v${version}-b${env.BUILD_NUMBER}"
-            currentBuild.displayName = buildName
-            echo "Build name set to: ${buildName}"
+            withBun {
+                ensureBunInstalled()
+                def version = sh(
+                    script: "bun --eval \"console.log(JSON.parse(await Bun.file('package.json').text()).version)\"",
+                    returnStdout: true
+                ).trim()
+                def buildName = "v${version}-b${env.BUILD_NUMBER}"
+                currentBuild.displayName = buildName
+                echo "Build name set to: ${buildName}"
+            }
         }
     }
 }