hermes-agent/apps/desktop/electron/windows-user-env.test.cjs
Austin Pickett 368fcf1ff0
fix(desktop): read HERMES_HOME from the Windows registry when env is stale (#46772)
A GUI app launched from Explorer inherits the environment block captured at
login, so a HERMES_HOME set via 'setx' AFTER login is invisible in process.env
even though the CLI (a fresh shell) sees it. The desktop then silently fell
back to %LOCALAPPDATA%\hermes and reported 'No inference provider configured'
despite a valid configured home (#45471).

resolveHermesHome() now consults the live HKCU\Environment registry value on
Windows before the LOCALAPPDATA default. New windows-user-env.cjs helper parses
'reg query' output, expands %VAR% refs, and fails safe (returns null off-Windows,
on spawn error, or empty value). The registry value is normalized through the
same normalizeHermesHomeRoot() path as the env var for consistency.

Co-authored-by: jeffrobodie-glitch <jeffrobodie@gmail.com>
2026-06-15 15:16:55 -05:00

90 lines
3.5 KiB
JavaScript

const assert = require('node:assert/strict')
const { test } = require('node:test')
const {
expandWindowsEnvRefs,
parseRegQueryValue,
readWindowsUserEnvVar
} = require('./windows-user-env.cjs')
// ── parseRegQueryValue ─────────────────────────────────────────────────────
test('parseRegQueryValue extracts a REG_SZ value', () => {
const out = [
'',
'HKEY_CURRENT_USER\\Environment',
' HERMES_HOME REG_SZ F:\\Hermes\\data',
''
].join('\r\n')
assert.equal(parseRegQueryValue(out, 'HERMES_HOME'), 'F:\\Hermes\\data')
})
test('parseRegQueryValue matches the name case-insensitively', () => {
const out = 'HKEY_CURRENT_USER\\Environment\r\n Hermes_Home REG_EXPAND_SZ %USERPROFILE%\\h\r\n'
assert.equal(parseRegQueryValue(out, 'HERMES_HOME'), '%USERPROFILE%\\h')
})
test('parseRegQueryValue preserves spaces inside the value', () => {
const out = ' HERMES_HOME REG_SZ C:\\Program Files\\Hermes\r\n'
assert.equal(parseRegQueryValue(out, 'HERMES_HOME'), 'C:\\Program Files\\Hermes')
})
test('parseRegQueryValue returns null when the value line is absent', () => {
const out = 'HKEY_CURRENT_USER\\Environment\r\n Path REG_SZ C:\\x\r\n'
assert.equal(parseRegQueryValue(out, 'HERMES_HOME'), null)
assert.equal(parseRegQueryValue('', 'HERMES_HOME'), null)
assert.equal(parseRegQueryValue('garbage', 'HERMES_HOME'), null)
})
// ── expandWindowsEnvRefs ───────────────────────────────────────────────────
test('expandWindowsEnvRefs expands %VAR% case-insensitively', () => {
assert.equal(
expandWindowsEnvRefs('%UserProfile%\\h', { USERPROFILE: 'C:\\Users\\jeff' }),
'C:\\Users\\jeff\\h'
)
})
test('expandWindowsEnvRefs leaves literal paths and unknown refs intact', () => {
assert.equal(expandWindowsEnvRefs('F:\\Hermes\\data', {}), 'F:\\Hermes\\data')
assert.equal(expandWindowsEnvRefs('%NOPE%\\x', {}), '%NOPE%\\x')
})
// ── readWindowsUserEnvVar ──────────────────────────────────────────────────
test('readWindowsUserEnvVar returns null off Windows without spawning', () => {
let spawned = false
const exec = () => {
spawned = true
return ''
}
assert.equal(readWindowsUserEnvVar('HERMES_HOME', { platform: 'linux', exec }), null)
assert.equal(spawned, false)
})
test('readWindowsUserEnvVar queries HKCU\\Environment and expands the value', () => {
const calls = []
const exec = (cmd, args) => {
calls.push([cmd, args])
return 'HKEY_CURRENT_USER\\Environment\r\n HERMES_HOME REG_EXPAND_SZ %DRIVE%\\Hermes\r\n'
}
const value = readWindowsUserEnvVar('HERMES_HOME', {
platform: 'win32',
env: { DRIVE: 'F:' },
exec
})
assert.equal(value, 'F:\\Hermes')
assert.deepEqual(calls, [['reg', ['query', 'HKCU\\Environment', '/v', 'HERMES_HOME']]])
})
test('readWindowsUserEnvVar returns null when reg exits non-zero (value missing)', () => {
const exec = () => {
throw new Error('reg exited 1')
}
assert.equal(readWindowsUserEnvVar('HERMES_HOME', { platform: 'win32', exec }), null)
})
test('readWindowsUserEnvVar returns null for an empty value', () => {
const exec = () => ' HERMES_HOME REG_SZ \r\n'
assert.equal(readWindowsUserEnvVar('HERMES_HOME', { platform: 'win32', exec }), null)
})