fix(desktop): keep profile homes out of bootstrap (#46073)

apps/desktop/electron/backend-env.cjs

@@ -67,6 +67,16 @@ function buildDesktopBackendPath({
   )
 }
 
+function normalizeHermesHomeRoot(hermesHome, { pathModule = pathModuleForPlatform(process.platform) } = {}) {
+  if (!hermesHome) return hermesHome
+  const resolved = pathModule.resolve(String(hermesHome))
+  const parent = pathModule.dirname(resolved)
+  if (pathModule.basename(parent).toLowerCase() === 'profiles') {
+    return pathModule.dirname(parent)
+  }
+  return resolved
+}
+
 function buildDesktopBackendEnv({
   hermesHome,
   pythonPathEntries = [],
@@ -97,5 +107,6 @@ module.exports = {
   buildDesktopBackendEnv,
   buildDesktopBackendPath,
   delimiterForPlatform,
+  normalizeHermesHomeRoot,
   pathEnvKey
 }

apps/desktop/electron/backend-env.test.cjs

@@ -7,6 +7,7 @@ const {
   appendUniquePathEntries,
   buildDesktopBackendEnv,
   buildDesktopBackendPath,
+  normalizeHermesHomeRoot,
   pathEnvKey
 } = require('./backend-env.cjs')
 
@@ -66,6 +67,21 @@ test('buildDesktopBackendEnv extends PYTHONPATH and backend PATH together', () =
   assert.ok(env.PATH.includes('/opt/homebrew/bin'))
 })
 
+test('normalizeHermesHomeRoot maps profile homes back to the global Hermes root', () => {
+  assert.equal(
+    normalizeHermesHomeRoot('/Users/test/.hermes/profiles/oracle', { pathModule: path.posix }),
+    '/Users/test/.hermes'
+  )
+  assert.equal(
+    normalizeHermesHomeRoot('C:\\Users\\test\\AppData\\Local\\hermes\\profiles\\oracle', { pathModule: path.win32 }),
+    'C:\\Users\\test\\AppData\\Local\\hermes'
+  )
+  assert.equal(
+    normalizeHermesHomeRoot('/Users/test/.hermes', { pathModule: path.posix }),
+    '/Users/test/.hermes'
+  )
+})
+
 test('Windows PATH casing and delimiter are preserved without POSIX sane entries', () => {
   const env = buildDesktopBackendEnv({
     hermesHome: 'C:\\Users\\test\\AppData\\Local\\hermes',

apps/desktop/electron/main.cjs

@@ -38,7 +38,7 @@ const { adoptServedDashboardToken } = require('./dashboard-token.cjs')
 const { waitForDashboardPort } = require('./backend-ready.cjs')
 const { serializeJsonBody, setJsonRequestHeaders } = require('./oauth-net-request.cjs')
 const { fetchMarketplaceThemes, searchMarketplaceThemes } = require('./vscode-marketplace.cjs')
-const { buildDesktopBackendEnv } = require('./backend-env.cjs')
+const { buildDesktopBackendEnv, normalizeHermesHomeRoot } = require('./backend-env.cjs')
 const { readDirForIpc } = require('./fs-read-dir.cjs')
 const { gitRootForIpc } = require('./git-root.cjs')
 const { worktreesForIpc } = require('./git-worktrees.cjs')
@@ -240,7 +240,7 @@ if (INSTALL_STAMP) {
 // HERMES_HOME beneath the throwaway userData dir so a fresh-install run never
 // touches the user's real ~/.hermes / %LOCALAPPDATA%\hermes.
 function resolveHermesHome() {
-  if (process.env.HERMES_HOME) return path.resolve(process.env.HERMES_HOME)
+  if (process.env.HERMES_HOME) return normalizeHermesHomeRoot(process.env.HERMES_HOME)
   if (USER_DATA_OVERRIDE) return path.join(path.resolve(USER_DATA_OVERRIDE), 'hermes-home')
   if (IS_WINDOWS && process.env.LOCALAPPDATA) {
     const localappdata = path.join(process.env.LOCALAPPDATA, 'hermes')