check for cwd before getting it

Fixes #25337.

salt/client/ssh/state.py

@@ -174,13 +174,17 @@ def prep_trans_tar(file_client, chunks, file_refs, pillar=None):
                             os.makedirs(tgt_dir)
                         shutil.copy(filename, tgt)
                     continue
-    cwd = os.getcwd()
+    try:  # cwd may not exist if it was removed but salt was run from it
+        cwd = os.getcwd()
+    except OSError:
+        cwd = None
     os.chdir(gendir)
     with closing(tarfile.open(trans_tar, 'w:gz')) as tfp:
         for root, dirs, files in os.walk(gendir):
             for name in files:
                 full = os.path.join(root, name)
                 tfp.add(full[len(gendir):].lstrip(os.sep))
-    os.chdir(cwd)
+    if cwd:
+        os.chdir(cwd)
     shutil.rmtree(gendir)
     return trans_tar

salt/utils/parsers.py

@@ -298,7 +298,10 @@ class SaltfileMixIn(object):
             # If we're here, no one passed a Saltfile either to the CLI tool or
             # as an environment variable.
             # Is there a Saltfile in the current directory?
-            saltfile = os.path.join(os.getcwd(), 'Saltfile')
+            try:  # cwd may not exist if it was removed but salt was run from it
+                saltfile = os.path.join(os.getcwd(), 'Saltfile')
+            except OSError:
+                saltfile = ''
             if os.path.isfile(saltfile):
                 self.options.saltfile = saltfile
         else:

salt/utils/thin.py

@@ -151,7 +151,10 @@ def gen_thin(cachedir, extra_mods='', overwrite=False, so_mods=''):
     if HAS_MARKUPSAFE:
         tops.append(os.path.dirname(markupsafe.__file__))
     tfp = tarfile.open(thintar, 'w:gz', dereference=True)
-    start_dir = os.getcwd()
+    try:  # cwd may not exist if it was removed but salt was run from it
+        start_dir = os.getcwd()
+    except OSError:
+        start_dir = None
     tempdir = None
     for top in tops:
         base = os.path.basename(top)
@@ -182,7 +185,8 @@ def gen_thin(cachedir, extra_mods='', overwrite=False, so_mods=''):
         fp_.write(salt.version.__version__)
     os.chdir(os.path.dirname(thinver))
     tfp.add('version')
-    os.chdir(start_dir)
+    if start_dir:
+        os.chdir(start_dir)
     tfp.close()
     return thintar