Windows fixes

- Ignore errors when executing `shutil.rmtree()`, because it seems like it's common to fail when deleting git repos on Windows, and since these are temp files, we don't really care that much there's garbage left. Any good OS should clean the temp folders automatically.
- Always find Jinja templates in `PosixPath` mode.
- Ignore `OSError` when trying to enter a possibly git root directory. This is yielded by Windows when the path is a URL and we don't really care about it.
- Fix some tests with non-windows haradcoded stuff.
- Fix a test that was using a Bash script. Modified to be Python, which should work fine cross-system.

copier/main.py

@@ -147,7 +147,7 @@ def copy(
         raise
     finally:
         if is_update:
-            shutil.rmtree(conf.src_path)
+            shutil.rmtree(conf.src_path, ignore_errors=True)
 
 
 def copy_local(conf: ConfigData) -> None:

copier/tools.py

@@ -152,10 +152,8 @@ def __init__(self, conf: ConfigData) -> None:
         )
 
     def __call__(self, fullpath: StrOrPath) -> str:
-        relpath = (
-            str(fullpath).replace(str(self.conf.src_path), "", 1).lstrip(os.path.sep)
-        )
-        tmpl = self.env.get_template(relpath)
+        relpath = Path(fullpath).relative_to(self.conf.src_path).as_posix()
+        tmpl = self.env.get_template(str(relpath))
         return tmpl.render(**self.data)
 
     def string(self, string: StrOrPath) -> str:

copier/vcs.py

@@ -1,5 +1,4 @@
 import re
-import shutil
 import tempfile
 from pathlib import Path
 
@@ -25,8 +24,8 @@ def is_git_repo_root(path: Path) -> bool:
     """Indicate if a given path is a git repo root directory."""
     try:
         with local.cwd(path / ".git"):
-            return bool(git("rev-parse", "--is-inside-git-dir") == "true\n")
-    except (FileNotFoundError, NotADirectoryError):
+            return bool(git("rev-parse", "--is-inside-git-dir").strip() == "true")
+    except OSError:
         return False
 
 
@@ -72,7 +71,6 @@ def checkout_latest_tag(local_repo: StrOrPath) -> str:
 
 def clone(url: str, ref: str = "HEAD") -> str:
     location = tempfile.mkdtemp(prefix=f"{__name__}.clone.")
-    shutil.rmtree(location)  # Path must not exist
     git("clone", "--no-checkout", url, location)
     with local.cwd(location):
         git("checkout", ref)

tests/demo_migrations/copier.yaml

@@ -1,11 +1,11 @@
 _exclude:
-  - tasks.sh
+  - tasks.py
   - migrations.py
   - .git
 
 _tasks:
-  - "[[ _copier_conf.src_path / 'tasks.sh' ]] 1"
-  - ["[[ _copier_conf.src_path / 'tasks.sh' ]]", 2]
+  - "python3 [[ _copier_conf.src_path / 'tasks.py' ]] 1"
+  - [python3, "[[ _copier_conf.src_path / 'tasks.py' ]]", 2]
 
 _migrations:
   # This migration is never executed because it's the 1st version copied, and

tests/demo_migrations/tasks.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+import os
+import os.path
+import sys
+from contextlib import suppress
+
+from plumbum.cmd import git
+
+with open("created-with-tasks.txt", "a", newline="\n") as cwt:
+    cwt.write(" ".join([os.environ["STAGE"]] + sys.argv[1:]) + "\n")
+    git("init")
+    with suppress(FileNotFoundError):
+        os.unlink("delete-in-tasks.txt")

tests/test_config.py

@@ -1,4 +1,3 @@
-import re
 from pathlib import Path
 
 import pytest
@@ -45,11 +44,12 @@ def test_read_data(tmp_path, template):
 
 
 def test_invalid_yaml(capsys):
-    conf_path = Path("tests/demo_invalid/copier.yml")
+    conf_path = Path("tests", "demo_invalid", "copier.yml")
     with pytest.raises(InvalidConfigFileError):
         load_yaml_data(conf_path)
     out, _ = capsys.readouterr()
-    assert re.search(r"INVALID.*tests/demo_invalid/copier\.yml", out)
+    assert "INVALID CONFIG FILE" in out
+    assert str(conf_path) in out
 
 
 @pytest.mark.parametrize(

tests/test_migrations.py

@@ -35,7 +35,7 @@ def test_migrations_and_tasks(tmpdir: py.path.local):
     assert not (tmp_path / "delete-in-tasks.txt").exists()
     assert (tmp_path / "delete-in-migration-v2.txt").isfile()
     assert not (tmp_path / "migrations.py").exists()
-    assert not (tmp_path / "tasks.sh").exists()
+    assert not (tmp_path / "tasks.py").exists()
     assert not glob(str(tmp_path / "*-before.txt"))
     assert not glob(str(tmp_path / "*-after.txt"))
     answers = yaml.safe_load((tmp_path / ".copier-answers.yml").read())
@@ -53,7 +53,7 @@ def test_migrations_and_tasks(tmpdir: py.path.local):
     assert not (tmp_path / "delete-in-tasks.txt").exists()
     assert not (tmp_path / "delete-in-migration-v2.txt").exists()
     assert not (tmp_path / "migrations.py").exists()
-    assert not (tmp_path / "tasks.sh").exists()
+    assert not (tmp_path / "tasks.py").exists()
     assert (tmp_path / "v1.0.0-v2-v2.0-before.json").isfile()
     assert (tmp_path / "v1.0.0-v2-v2.0-after.json").isfile()
     answers = yaml.safe_load((tmp_path / ".copier-answers.yml").read())

tests/test_vcs.py

@@ -45,4 +45,4 @@ def test_clone():
     tmp = vcs.clone("https://github.com/copier-org/copier.git")
     assert tmp
     assert exists(join(tmp, "README.md"))
-    shutil.rmtree(tmp)
+    shutil.rmtree(tmp, ignore_errors=True)