Add code for exporting.

ognibuild/__main__.py

@@ -154,6 +154,10 @@ def main():  # noqa: C901
 
         session = PlainSession()
     with session:
+        logging.info("Preparing directory %s", args.directory)
+        external_dir, internal_dir = session.setup_from_directory(args.directory)
+        session.chdir(internal_dir)
+        os.chdir(external_dir)
         if args.resolve == "apt":
             resolver = AptResolver.from_session(session)
         elif args.resolve == "native":
@@ -161,7 +165,6 @@ def main():  # noqa: C901
         elif args.resolve == "auto":
             resolver = auto_resolver(session, explain=args.explain)
         logging.info("Using requirement resolver: %s", resolver)
-        os.chdir(args.directory)
         try:
             bss = list(detect_buildsystems(args.directory))
             logging.info(

ognibuild/buildsystem.py

@@ -174,13 +174,7 @@ class SetupPy(BuildSystem):
         return "%s(%r)" % (type(self).__name__, self.path)
 
     def setup(self, resolver):
-        with open(self.path, "r") as f:
-            setup_py_contents = f.read()
-        try:
-            with open("setup.cfg", "r") as f:
-                setup_cfg_contents = f.read()
-        except FileNotFoundError:
-            setup_cfg_contents = ""
+        pass
 
     def test(self, session, resolver, fixers):
         self.setup(resolver)

ognibuild/dist.py

@@ -155,13 +155,8 @@ def create_dist_schroot(
         fixers = [InstallFixer(resolver)]
 
         with DistCatcher(export_directory) as dc:
-            oldcwd = os.getcwd()
-            os.chdir(export_directory)
-            try:
-                session.chdir(os.path.join(reldir, subdir))
-                run_dist(session, buildsystems, resolver, fixers)
-            finally:
-                os.chdir(oldcwd)
+            session.chdir(reldir)
+            run_dist(session, buildsystems, resolver, fixers)
 
         for path in dc.files:
             shutil.copy(path, target_dir)

ognibuild/session/__init__.py

@@ -16,7 +16,7 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
-from typing import Optional, List, Dict
+from typing import Optional, List, Dict, Tuple
 import sys
 import subprocess
 
@@ -74,6 +74,14 @@ class Session(object):
     def scandir(self, path: str):
         raise NotImplementedError(self.scandir)
 
+    def setup_from_vcs(
+            self, tree, include_controldir: Optional[bool] = None,
+            subdir="package") -> Tuple[str, str]:
+        raise NotImplementedError(self.setup_from_vcs)
+
+    def setup_from_directory(self, path, subdir="package") -> Tuple[str, str]:
+        raise NotImplementedError(self.setup_from_directory)
+
 
 class SessionSetupFailure(Exception):
     """Session failed to be set up."""

ognibuild/session/plain.py

@@ -18,8 +18,10 @@
 
 from . import Session
 
+import contextlib
 import os
 import subprocess
+import tempfile
 from typing import Optional, Dict, List
 
 
@@ -38,6 +40,15 @@ class PlainSession(Session):
     def __repr__(self):
         return "%s()" % (type(self).__name__, )
 
+    def __enter__(self) -> "Session":
+        self.es = contextlib.ExitStack()
+        self.es.__enter__()
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.es.__exit__(exc_type, exc_val, exc_tb)
+        return False
+
     def create_home(self):
         pass
 
@@ -69,3 +80,21 @@ class PlainSession(Session):
 
     def chdir(self, path):
         os.chdir(path)
+
+    def setup_from_vcs(
+            self, tree, include_controldir=None, subdir="package"):
+        from ..vcs import dupe_vcs_tree, export_vcs_tree
+        if include_controldir is False or (
+                not hasattr(tree, 'base') and include_controldir is None):
+            td = self.es.enter_context(tempfile.TemporaryDirectory())
+            export_vcs_tree(tree, td)
+            return td, td
+        elif not hasattr(tree, 'base'):
+            td = self.es.enter_context(tempfile.TemporaryDirectory())
+            dupe_vcs_tree(tree, td)
+            return td, td
+        else:
+            return tree.base, tree.base
+
+    def setup_from_directory(self, path):
+        return path, path

ognibuild/session/schroot.py

@@ -170,13 +170,13 @@ class SchrootSession(Session):
         return os.scandir(fullpath)
 
     def setup_from_vcs(
-            self, tree, include_controldir=False, subdir="package"):
+            self, tree, include_controldir: Optional[bool] = None,
+            subdir="package"):
         from ..vcs import dupe_vcs_tree, export_vcs_tree
         build_dir = os.path.join(self.location, "build")
 
         directory = tempfile.mkdtemp(dir=build_dir)
         reldir = "/" + os.path.relpath(directory, self.location)
-        os.chdir(reldir)
 
         export_directory = os.path.join(directory, subdir)
         if not include_controldir:
@@ -184,4 +184,13 @@ class SchrootSession(Session):
         else:
             dupe_vcs_tree(tree, export_directory)
 
-        return export_directory, reldir
+        return export_directory, os.path.join(reldir, subdir)
+
+    def setup_from_directory(self, path, subdir="package"):
+        import shutil
+        build_dir = os.path.join(self.location, "build")
+        directory = tempfile.mkdtemp(dir=build_dir)
+        reldir = "/" + os.path.relpath(directory, self.location)
+        export_directory = os.path.join(directory, subdir)
+        shutil.copytree(path, export_directory, dirs_exist_ok=True)
+        return export_directory, os.path.join(reldir, subdir)