fix(vcs): prevent local clone from being stuck by gpg prompts

Fixes #856
Fixes #1224
Fixes #616

copier/main.py

@@ -943,8 +943,22 @@ def _git_initialize_repo(self):
         git("config", "user.email", "copier@copier")
         # 1st commit could fail if any pre-commit hook reformats code
         # 2nd commit uses --no-verify to disable pre-commit-like checks
-        git("commit", "--allow-empty", "-am", "dumb commit 1", retcode=None)
-        git("commit", "--allow-empty", "-am", "dumb commit 2", "--no-verify")
+        git(
+            "commit",
+            "--allow-empty",
+            "-am",
+            "dumb commit 1",
+            "--no-gpg-sign",
+            retcode=None,
+        )
+        git(
+            "commit",
+            "--allow-empty",
+            "-am",
+            "dumb commit 2",
+            "--no-gpg-sign",
+            "--no-verify",
+        )
         git("config", "--unset", "user.name")
         git("config", "--unset", "user.email")
 

copier/vcs.py

@@ -194,6 +194,7 @@ def clone(url: str, ref: OptStr = None) -> str:
                     "-m",
                     "Copier automated commit for draft changes",
                     "--no-verify",
+                    "--no-gpg-sign",
                 )
                 warn(
                     "Dirty template changes included automatically.",

pyproject.toml

@@ -26,7 +26,7 @@ copier = "copier.__main__:copier_app_run"
 "Bug Tracker" = "https://github.com/copier-org/copier/issues"
 
 [tool.poetry.dependencies]
-python = ">=3.8,<4.0" # HACK https://github.com/PyCQA/isort/issues/1945
+python = ">=3.8,<4.0"                                               # HACK https://github.com/PyCQA/isort/issues/1945
 colorama = ">=0.4.3"
 decorator = ">=5.1.1"
 dunamai = ">=1.7.0"
@@ -53,6 +53,7 @@ poethepoet = ">=0.12.3"
 pre-commit = ">=2.17.0"
 pytest = ">=7.2.0"
 pytest-cov = ">=3.0.0"
+pytest-gitconfig = ">=0.6.0"
 pytest-xdist = ">=2.5.0"
 types-backports = ">=0.1.3"
 types-decorator = ">=5.1.1"
@@ -126,9 +127,7 @@ add_ignore = ["D105", "D107"]
 
 [tool.pytest.ini_options]
 addopts = "-n auto -ra"
-markers = [
-    "impure: needs network or is not 100% reproducible"
-]
+markers = ["impure: needs network or is not 100% reproducible"]
 
 [tool.commitizen]
 annotated_tag = true

tests/conftest.py

@@ -1,10 +1,12 @@
 import platform
 import sys
-from typing import Optional, Tuple
+from typing import Iterator, Optional, Tuple
 
 import pytest
 from coverage.tracer import CTracer
 from pexpect.popen_spawn import PopenSpawn
+from plumbum import local
+from pytest_gitconfig import GitConfig
 
 from .helpers import Spawn
 
@@ -32,3 +34,29 @@ def _spawn(cmd: Tuple[str, ...], *, timeout: Optional[int] = None) -> PopenSpawn
         return PopenSpawn(cmd, timeout, logfile=sys.stderr.buffer)
 
     return _spawn
+
+
+@pytest.fixture(scope="session", autouse=True)
+def default_gitconfig(default_gitconfig: GitConfig) -> GitConfig:
+    """
+    Use a clean and isolated default gitconfig avoiding user settings to break some tests.
+
+    Add plumbum support to the original session-scoped fixture.
+    """
+    # local.env is a snapshot frozen at Python startup requiring its own monkeypatching
+    for var in list(local.env.keys()):
+        if var.startswith("GIT_"):
+            del local.env[var]
+    local.env["GIT_CONFIG_GLOBAL"] = str(default_gitconfig)
+    return default_gitconfig
+
+
+@pytest.fixture
+def gitconfig(gitconfig: GitConfig) -> Iterator[GitConfig]:
+    """
+    Use a clean and isolated gitconfig to test some specific user settings.
+
+    Add plumbum support to the original function-scoped fixture.
+    """
+    with local.env(GIT_CONFIG_GLOBAL=str(gitconfig)):
+        yield gitconfig

tests/test_dirty_local.py

@@ -4,6 +4,7 @@
 import pytest
 from plumbum import local
 from plumbum.cmd import git
+from pytest_gitconfig import GitConfig
 
 import copier
 from copier.errors import DirtyLocalWarning
@@ -50,7 +51,31 @@ def test_copy_dirty_head(tmp_path_factory: pytest.TempPathFactory) -> None:
         git("init")
         git("add", "tracked")
         git("commit", "-m1")
-    copier.run_copy(str(src), dst, vcs_ref="HEAD")
+    with pytest.warns(DirtyLocalWarning):
+        copier.run_copy(str(src), dst, vcs_ref="HEAD")
+    assert (dst / "tracked").exists()
+    assert (dst / "untracked").exists()
+
+
+def test_copy_dirty_head_with_gpg(
+    tmp_path_factory: pytest.TempPathFactory, gitconfig: GitConfig
+) -> None:
+    src, dst = map(tmp_path_factory.mktemp, ("src", "dst"))
+    build_file_tree(
+        {
+            src / "tracked": "",
+            src / "untracked": "",
+        }
+    )
+    with local.cwd(src):
+        git("init")
+        git("add", "tracked")
+        git("commit", "-m1")
+    gitconfig.set({"user.signinkey": "123456", "commit.gpgsign": "true"})
+
+    with pytest.warns(DirtyLocalWarning):
+        copier.run_copy(str(src), dst, vcs_ref="HEAD")
+
     assert (dst / "tracked").exists()
     assert (dst / "untracked").exists()
 
@@ -141,3 +166,52 @@ def test_update(tmp_path_factory: pytest.TempPathFactory) -> None:
     # HACK https://github.com/copier-org/copier/issues/461
     # TODO test file deletion on update
     # assert not (dst / "to_delete.txt").exists()
+
+
+def test_update_with_gpg_sign(
+    tmp_path_factory: pytest.TempPathFactory, gitconfig: GitConfig
+) -> None:
+    src, dst = map(tmp_path_factory.mktemp, ("src", "dst"))
+
+    build_file_tree(
+        {
+            (src / ".copier-answers.yml.jinja"): (
+                """\
+                # Changes here will be overwritten by Copier
+                {{ _copier_answers|to_nice_yaml }}
+                """
+            ),
+            (src / "copier.yml"): (
+                """\
+                _envops:
+                    "keep_trailing_newline": True
+                """
+            ),
+            (src / "aaaa.txt"): (
+                """
+                Lorem ipsum
+                """
+            ),
+        }
+    )
+
+    with local.cwd(src):
+        git("init")
+        git("add", "-A")
+        git("commit", "-m", "first commit on src")
+
+    run_copy(str(src), dst, defaults=True, overwrite=True)
+
+    with local.cwd(src):
+        Path("test_file.txt").write_text("Test content")
+        Path("aaaa.txt").write_text("dolor sit amet")
+
+    # dst must be vcs-tracked to use run_update
+    with local.cwd(dst):
+        git("init")
+        git("add", "-A")
+        git("commit", "-m", "first commit on dst")
+
+    gitconfig.set({"user.signinkey": "123456", "commit.gpgsign": "true"})
+    with pytest.warns(DirtyLocalWarning):
+        run_update(dst, defaults=True, overwrite=True)