Switch to Bazelmod from WORKSPACE

.bazelrc

@@ -1,5 +1,5 @@
-# Don't use the MODULE.bazel stuff yet.
-common --noenable_bzlmod
+# Use the MODULE.bazel stuff instead of the old WORKSPACE.
+common --enable_bzlmod
 
 # Show output if tests fail.
 test --test_output=errors

.gitignore

@@ -162,3 +162,7 @@ secrets.sh
 /.clwb/
 
 # End of https://www.toptal.com/developers/gitignore/api/bazel
+
+# Ignore Bazel's lockfile until usability gets resolved. See
+# https://github.com/bazelbuild/bazel/issues/20369
+MODULE.bazel.lock

MODULE.bazel

@@ -0,0 +1,38 @@
+# Name the workspace/module
+module(
+    name = "bitwarden-to-keepass",
+    version = "0.0.0",
+    compatibility_level = 1,
+)
+
+# Install rules_python, which allows us to define how bazel should work with python files.
+# See https://github.com/bazelbuild/rules_python/blob/c6941a8dad4c7a221125fbad7c8bfaac377e00ba/examples/bzlmod/MODULE.bazel
+bazel_dep(name = "rules_python", version = "0.31.0")
+
+# Init the python toolchain using the extension.
+# This is similar to the "python_register_toolchains" function in WORKSPACE.
+# It creates a hermetic python rather than relying on a system-installed interpreter.
+python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+python.toolchain(
+    configure_coverage_tool = True,
+    # Available versions are listed in @rules_python//python:versions.bzl.
+    # For some reason we can't set 3.8.18 here - it causes pip.parse() to fail.
+    python_version = "3.8"
+)
+
+# Enable pip
+pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
+
+# Configure how we fetch python dependencies via pip
+pip.parse(
+    # This name is what gets used in other BUILD files with `load()`.
+    hub_name = "pypi",
+    python_version = "3.8.18",
+    # TODO: what to put here? Using this might resolve the "can't set 3.8.18"
+    # issue mentioned above.
+    # python_interpreter_target = python,
+    requirements_lock = "//:requirements_lock.txt",
+)
+
+# Same as WORKSPACE install_deps() - actually install the python deps.
+use_repo(pip, "pypi")