Feature/workspace api (#17501)

* working in workspace_api

* fixed loader + run() error

conan/api/subapi/workspace.py

@@ -16,7 +16,7 @@ class WorkspaceAPI:
 
     def __init__(self, conan_api):
         self._conan_api = conan_api
-        self._workspace = Workspace()
+        self._workspace = Workspace(conan_api)
 
     def home_folder(self):
         return self._workspace.home_folder()

conan/internal/workspace.py

@@ -4,6 +4,8 @@
 import yaml
 
 from conan.api.output import ConanOutput
+from conan.internal.cache.home_paths import HomePaths
+from conan.internal.conan_app import CmdWrapper, ConanFileHelpers
 from conans.client.loader import load_python_file
 from conan.errors import ConanException
 from conans.model.recipe_ref import RecipeReference
@@ -20,13 +22,17 @@ def _find_ws_folder():
 
 
 class _UserWorkspaceAPI:
-    def __init__(self, folder):
+    def __init__(self, folder, conan_api):
         self.folder = folder
+        self._conan_api = conan_api
 
     def load(self, conanfile_path):
         conanfile_path = os.path.join(self.folder, conanfile_path)
         from conans.client.loader import ConanFileLoader
-        loader = ConanFileLoader(pyreq_loader=None, conanfile_helpers=None)
+        cmd_wrap = CmdWrapper(HomePaths(self._conan_api.home_folder).wrapper_path)
+        helpers = ConanFileHelpers(None, cmd_wrap, self._conan_api.config.global_conf,
+                                   cache=None, home_folder=self._conan_api.home_folder)
+        loader = ConanFileLoader(pyreq_loader=None, conanfile_helpers=helpers)
         conanfile = loader.load_named(conanfile_path, name=None, version=None, user=None,
                                       channel=None, remotes=None, graph_lock=None)
         return conanfile
@@ -35,7 +41,8 @@ def load(self, conanfile_path):
 class Workspace:
     TEST_ENABLED = False
 
-    def __init__(self):
+    def __init__(self, conan_api):
+        self._conan_api = conan_api
         self._folder = _find_ws_folder()
         if self._folder:
             ConanOutput().warning(f"Workspace found: {self._folder}")
@@ -58,7 +65,7 @@ def __init__(self):
             py_file = os.path.join(self._folder, "conanws.py")
             if os.path.exists(py_file):
                 self._py, _ = load_python_file(py_file)
-                setattr(self._py, "workspace_api", _UserWorkspaceAPI(self._folder))
+                setattr(self._py, "workspace_api", _UserWorkspaceAPI(self._folder, conan_api))
                 setattr(self._py, "conanws_data", self._yml)
 
     @property

test/integration/workspace/test_workspace.py

@@ -192,6 +192,35 @@ def editables(*args, **kwargs):
             # Doesn't fail
             assert "other/14.5 - Editable" in c.out
 
+    def test_api_dynamic_version_run(self):
+        # https://github.com/conan-io/conan/issues/17306
+        c = TestClient(light=True)
+        conanfile = textwrap.dedent("""
+            from io import StringIO
+            from conan import ConanFile
+            class Lib(ConanFile):
+                name= "pkg"
+                def set_version(self):
+                    my_buf = StringIO()
+                    self.run('echo 2.1', stdout=my_buf)
+                    self.version = my_buf.getvalue().strip()
+            """)
+
+        workspace = textwrap.dedent("""\
+           import os
+           name = "myws"
+
+           def editables(*args, **kwargs):
+               conanfile = workspace_api.load("dep1/conanfile.py")
+               return {f"{conanfile.name}/{conanfile.version}": {"path": "dep1/conanfile.py"}}
+            """)
+
+        c.save({"conanws.py": workspace,
+                "dep1/conanfile.py": conanfile})
+        c.run("workspace info --format=json")
+        info = json.loads(c.stdout)
+        assert info["editables"] == {"pkg/2.1": {"path": "dep1/conanfile.py"}}
+
     def test_error_uppercase(self):
         c = TestClient(light=True)
         c.save({"conanws.py": "name='myws'",