Remove constraint on environments_root creation

lib/spack/spack/environment/environment.py

@@ -261,17 +261,7 @@ def read(name):
 def create(name, init_file=None, with_view=None, keep_relative=False):
     """Create a named environment in Spack."""
     if not os.path.isdir(env_root_path()):
-        # double check that the root path exists before we check the full environment name
-        # we need to be a bit more pedantic and not create automatically since this is a user
-        # configurable path that can be subject to user input errors
-        if env_root_path() == default_env_path:
-            # we can just create the default path since it is internal to spack
-            os.mkdir(default_env_path)
-        else:
-            raise SpackEnvironmentError(
-                "The environments_root '{er}' does not exist.  Please create the directory or "
-                "provide a valid path in the config.yaml".format(er=env_root_path())
-            )
+        os.mkdir(env_root_path())
     validate_env_name(name)
     if exists(name):
         raise SpackEnvironmentError("'%s': environment already exists" % name)

lib/spack/spack/test/cmd/env.py

@@ -3183,17 +3183,6 @@ def test_env_include_packages_url(
         assert "openmpi" in cfg["all"]["providers"]["mpi"]
 
 
-def test_config_file_read_invalid_yaml(tmpdir, mutable_empty_config):
-    """Test reading a configuration file with invalid (unparseable) YAML
-    raises a ConfigFileError."""
-    filename = tmpdir.join("test.yaml")
-    with open(filename, "w") as f:
-        f.write("spack:\nview")
-
-    with pytest.raises(spack.config.ConfigFileError, match="parsing yaml"):
-        spack.config.read_config_file(filename)
-
-
 def test_environment_created_in_users_location(mutable_config, tmpdir):
     """Test that an environment is created in a location based on the config"""
     spack.config.set("config:environments_root", str(tmpdir.join("envs")))
@@ -3202,21 +3191,9 @@ def test_environment_created_in_users_location(mutable_config, tmpdir):
     assert tmpdir.strpath in env_dir
     assert not os.path.isdir(env_dir)
 
-    os.makedirs(env_dir)
     env("create", "test")
     out = env("list")
 
     assert "test" in out
     assert env_dir in ev.root("test")
     assert os.path.isdir(os.path.join(env_dir, "test"))
-
-
-def test_environment_errors_if_root_missing(mutable_config, tmpdir):
-    spack.config.set("config:environments_root", str(tmpdir.join("envs")))
-    env_dir = spack.config.get("config:environments_root")
-
-    assert tmpdir.strpath in env_dir
-    assert not os.path.isdir(env_dir)
-
-    with pytest.raises(ev.SpackEnvironmentError, match=env_dir):
-        env("create", "test")

lib/spack/spack/test/config.py

@@ -30,9 +30,6 @@
 import spack.schema.repos
 import spack.util.path as spack_path
 import spack.util.spack_yaml as syaml
-from spack.main import SpackCommand
-
-env = SpackCommand("env")
 
 # sample config data
 config_low = {
@@ -1451,3 +1448,14 @@ def test_config_file_read_perms_failure(tmpdir, mutable_empty_config):
 
     with pytest.raises(spack.config.ConfigFileError, match="not readable"):
         spack.config.read_config_file(filename)
+
+
+def test_config_file_read_invalid_yaml(tmpdir, mutable_empty_config):
+    """Test reading a configuration file with invalid (unparseable) YAML
+    raises a ConfigFileError."""
+    filename = tmpdir.join("test.yaml")
+    with open(filename, "w") as f:
+        f.write("spack:\nview")
+
+    with pytest.raises(spack.config.ConfigFileError, match="parsing yaml"):
+        spack.config.read_config_file(filename)