WIP: progress dots

Based on @chriskuehl's branch here:
- f7213054ac

pre_commit/languages/all.py

@@ -38,7 +38,7 @@ from pre_commit.languages import system
 #         version - A version specified in the hook configuration or 'default'.
 #     """
 #
-# def run_hook(hook, file_args, color):
+# def run_hook(hook, file_args, color, progress):
 #     """Runs a hook and returns the returncode and output of running that
 #     hook.
 #
@@ -46,6 +46,7 @@ from pre_commit.languages import system
 #         hook - `Hook`
 #         file_args - The files to be run
 #         color - whether the hook should be given a pty (when supported)
+#         progress - report progress as a float percentage
 #
 #     Returns:
 #         (returncode, output)

pre_commit/languages/docker.py

@@ -95,7 +95,7 @@ def docker_cmd():  # pragma: windows no cover
     )
 
 
-def run_hook(hook, file_args, color):  # pragma: windows no cover
+def run_hook(hook, file_args, color, progress):  # pragma: windows no cover
     assert_docker_available()
     # Rebuild the docker image in case it has gone missing, as many people do
     # automated cleanup of docker images.
@@ -106,4 +106,6 @@ def run_hook(hook, file_args, color):  # pragma: windows no cover
 
     entry_tag = ('--entrypoint', entry_exe, docker_tag(hook.prefix))
     cmd = docker_cmd() + entry_tag + cmd_rest
-    return helpers.run_xargs(hook, cmd, file_args, color=color)
+    return helpers.run_xargs(
+        hook, cmd, file_args, color=color, progress=progress,
+    )

pre_commit/languages/docker_image.py

@@ -12,7 +12,9 @@ healthy = helpers.basic_healthy
 install_environment = helpers.no_install
 
 
-def run_hook(hook, file_args, color):  # pragma: windows no cover
+def run_hook(hook, file_args, color, progress):  # pragma: windows no cover
     assert_docker_available()
     cmd = docker_cmd() + hook.cmd
-    return helpers.run_xargs(hook, cmd, file_args, color=color)
+    return helpers.run_xargs(
+        hook, cmd, file_args, color=color, progress=progress,
+    )

pre_commit/languages/golang.py

@@ -81,6 +81,8 @@ def install_environment(prefix, version, additional_dependencies):
             rmtree(pkgdir)
 
 
-def run_hook(hook, file_args, color):
+def run_hook(hook, file_args, color, progress):
     with in_env(hook.prefix):
-        return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+        return helpers.run_xargs(
+            hook, hook.cmd, file_args, color=color, progress=progress,
+        )

pre_commit/languages/node.py

@@ -78,6 +78,8 @@ def install_environment(
             )
 
 
-def run_hook(hook, file_args, color):  # pragma: windows no cover
+def run_hook(hook, file_args, color, progress):  # pragma: windows no cover
     with in_env(hook.prefix, hook.language_version):
-        return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+        return helpers.run_xargs(
+            hook, hook.cmd, file_args, color=color, progress=progress,
+        )

pre_commit/languages/python.py

@@ -151,9 +151,11 @@ def py_interface(_dir, _make_venv):
             )
         return retcode == 0
 
-    def run_hook(hook, file_args, color):
+    def run_hook(hook, file_args, color, progress):
         with in_env(hook.prefix, hook.language_version):
-            return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+            return helpers.run_xargs(
+                hook, hook.cmd, file_args, color=color, progress=progress,
+            )
 
     def install_environment(prefix, version, additional_dependencies):
         additional_dependencies = tuple(additional_dependencies)

pre_commit/languages/ruby.py

@@ -124,6 +124,8 @@ def install_environment(
             )
 
 
-def run_hook(hook, file_args, color):  # pragma: windows no cover
+def run_hook(hook, file_args, color, progress):  # pragma: windows no cover
     with in_env(hook.prefix, hook.language_version):
-        return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+        return helpers.run_xargs(
+            hook, hook.cmd, file_args, color=color, progress=progress,
+        )

pre_commit/languages/rust.py

@@ -89,6 +89,8 @@ def install_environment(prefix, version, additional_dependencies):
             )
 
 
-def run_hook(hook, file_args, color):
+def run_hook(hook, file_args, color, progress):
     with in_env(hook.prefix):
-        return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+        return helpers.run_xargs(
+            hook, hook.cmd, file_args, color=color, progress=progress,
+        )

pre_commit/languages/script.py

@@ -9,7 +9,9 @@ healthy = helpers.basic_healthy
 install_environment = helpers.no_install
 
 
-def run_hook(hook, file_args, color):
+def run_hook(hook, file_args, color, progress):
     cmd = hook.cmd
     cmd = (hook.prefix.path(cmd[0]),) + cmd[1:]
-    return helpers.run_xargs(hook, cmd, file_args, color=color)
+    return helpers.run_xargs(
+        hook, cmd, file_args, color=color, progress=progress,
+    )

pre_commit/languages/swift.py

@@ -51,6 +51,8 @@ def install_environment(
         )
 
 
-def run_hook(hook, file_args, color):  # pragma: windows no cover
+def run_hook(hook, file_args, color, progress):  # pragma: windows no cover
     with in_env(hook.prefix):
-        return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+        return helpers.run_xargs(
+            hook, hook.cmd, file_args, color=color, progress=progress,
+        )

pre_commit/languages/system.py

@@ -9,5 +9,7 @@ healthy = helpers.basic_healthy
 install_environment = helpers.no_install
 
 
-def run_hook(hook, file_args, color):
-    return helpers.run_xargs(hook, hook.cmd, file_args, color=color)
+def run_hook(hook, file_args, color, progress):
+    return helpers.run_xargs(
+        hook, hook.cmd, file_args, color=color, progress=progress,
+    )