Ignore bogus screen error

Closes #17

Co-Authored-By: Andreas Opferkuch <andreas.opferkuch@gmail.com>

lib/bin.js

@@ -2,6 +2,17 @@
 
 var spawn = require('child_process').spawn;
 
+function stripStderr(stderr) {
+  if (!stderr) return;
+  stderr = stderr.trim();
+  // Strip bogus screen size error.
+  // See https://github.com/microsoft/vscode/issues/98590
+  var regex = /your \d+x\d+ screen size is bogus\. expect trouble/gi;
+  stderr = stderr.replace(regex, '');
+
+  return stderr.trim();
+}
+
 /**
  * Spawn a binary and read its stdout.
  * @param  {String} cmd The name of the binary to spawn.
@@ -38,6 +49,7 @@ function run(cmd, args, options, done) {
     if (executed) return;
     executed = true;
 
+    stderr = stripStderr(stderr);
     if (stderr) {
       return done(new Error(stderr));
     }

test/ps.js

@@ -74,3 +74,63 @@ test('should parse ps output on *nix', async t => {
   mockery.deregisterMock('child_process');
   mockery.deregisterMock('os');
 });
+
+test('should throw if stderr contains an error', async t => {
+  const stdout =
+    'PPID   PID\n' +
+    '   1   430\n' +
+    ' 430   432\n' +
+    '   1   727\n' +
+    '   1  7166\n';
+
+  mockery.registerMock('child_process', {
+    spawn: () => mocks.spawn(stdout, 'Some error', null, 0, null),
+  });
+  mockery.registerMock('os', {
+    EOL: '\n',
+    platform: () => 'linux',
+    type: () => 'type',
+    release: () => 'release',
+  });
+
+  const ps = require('../lib/ps');
+
+  await t.throws(pify(ps)());
+
+  mockery.deregisterMock('child_process');
+  mockery.deregisterMock('os');
+});
+
+test('should not throw if stderr contains the "bogus" error message from vscode', async t => {
+  const stdout =
+    'PPID   PID\n' +
+    '   1   430\n' +
+    ' 430   432\n' +
+    '   1   727\n' +
+    '   1  7166\n';
+
+  mockery.registerMock('child_process', {
+    spawn: () =>
+      mocks.spawn(
+        stdout,
+        'your 131072x1 screen size is bogus. expect trouble',
+        null,
+        0,
+        null
+      ),
+  });
+  mockery.registerMock('os', {
+    EOL: '\n',
+    platform: () => 'linux',
+    type: () => 'type',
+    release: () => 'release',
+  });
+
+  const ps = require('../lib/ps');
+
+  const result = await pify(ps)();
+  t.deepEqual(result, [[1, 430], [430, 432], [1, 727], [1, 7166]]);
+
+  mockery.deregisterMock('child_process');
+  mockery.deregisterMock('os');
+});