Add initial implementation for running SBT commands.

pre_commit/languages/all.py

@@ -21,6 +21,7 @@ from pre_commit.languages import python
 from pre_commit.languages import r
 from pre_commit.languages import ruby
 from pre_commit.languages import rust
+from pre_commit.languages import sbt
 from pre_commit.languages import script
 from pre_commit.languages import swift
 from pre_commit.languages import system
@@ -60,6 +61,7 @@ languages = {
     'r': Language(name='r', ENVIRONMENT_DIR=r.ENVIRONMENT_DIR, get_default_version=r.get_default_version, health_check=r.health_check, install_environment=r.install_environment, run_hook=r.run_hook),  # noqa: E501
     'ruby': Language(name='ruby', ENVIRONMENT_DIR=ruby.ENVIRONMENT_DIR, get_default_version=ruby.get_default_version, health_check=ruby.health_check, install_environment=ruby.install_environment, run_hook=ruby.run_hook),  # noqa: E501
     'rust': Language(name='rust', ENVIRONMENT_DIR=rust.ENVIRONMENT_DIR, get_default_version=rust.get_default_version, health_check=rust.health_check, install_environment=rust.install_environment, run_hook=rust.run_hook),  # noqa: E501
+    'sbt': Language(name='sbt', ENVIRONMENT_DIR=sbt.ENVIRONMENT_DIR, get_default_version=sbt.get_default_version, health_check=sbt.health_check, install_environment=sbt.install_environment, run_hook=sbt.run_hook),  # noqa: E501
     'script': Language(name='script', ENVIRONMENT_DIR=script.ENVIRONMENT_DIR, get_default_version=script.get_default_version, health_check=script.health_check, install_environment=script.install_environment, run_hook=script.run_hook),  # noqa: E501
     'swift': Language(name='swift', ENVIRONMENT_DIR=swift.ENVIRONMENT_DIR, get_default_version=swift.get_default_version, health_check=swift.health_check, install_environment=swift.install_environment, run_hook=swift.run_hook),  # noqa: E501
     'system': Language(name='system', ENVIRONMENT_DIR=system.ENVIRONMENT_DIR, get_default_version=system.get_default_version, health_check=system.health_check, install_environment=system.install_environment, run_hook=system.run_hook),  # noqa: E501

pre_commit/languages/sbt.py

@@ -0,0 +1,44 @@
+from __future__ import annotations
+
+from typing import Sequence
+
+from pre_commit.hook import Hook
+from pre_commit.languages import helpers
+
+ENVIRONMENT_DIR = None
+install_environment = helpers.no_install
+health_check = helpers.basic_health_check
+get_default_version = helpers.basic_get_default_version
+
+
+def run_hook(
+        hook: Hook,
+        file_args: Sequence[str],
+        color: bool,
+) -> tuple[int, bytes]:
+    # TODO: Improve impl to connect to run commands via SBT server
+    return run_sbt_hook_via_commandline(hook, file_args, color)
+
+
+def run_sbt_hook_via_commandline(
+        hook: Hook,
+        file_args: Sequence[str],
+        color: bool,
+) -> tuple[int, bytes]:
+    """
+    Run an SBT hook, via the commandline. The command to be run is:
+        sbt ${entry} ${args} ${files}
+    The entry and args will not be quoted (so should be wrapped in quotes as
+    appropriate by the hook author),however files will be quoted, so any
+    filenames with spaces will be interpreted as a single argument by SBT
+    """
+    entry_part = hook.entry
+    args_part = ' '.join(hook.args)
+    files_part = ' '.join(_quote(file) for file in file_args)
+    sbt_command = f'{entry_part} {args_part} {files_part}'
+    shell_cmd = ('sbt', sbt_command)
+    return helpers.run_xargs(hook, shell_cmd, [], color=color)
+
+
+def _quote(s: str) -> str:
+    return f"\"{s}\""