refactor(docker): move provision_skills into provision/skills.py

claude_bottle/backend/docker/backend.py

@@ -36,6 +36,7 @@ from .pipelock import (
     pipelock_proxy_url,
 )
 from .provision import prompt as _prompt
+from .provision import skills as _skills
 
 
 # Where the repo root lives, for `docker build` context. Computed once.
@@ -300,50 +301,8 @@ class DockerBottleBackend(BottleBackend):
                 )
 
     def provision_skills(self, plan: BottlePlan, target: str) -> None:
-        """Copy each of the agent's named skills from the host's
-        ~/.claude/skills/<name>/ into the container's equivalent path.
-        For each skill: ensure parent dir, wipe any prior copy, then
-        `docker cp <host>/. <container>:<dst>/` so the contents are
-        copied into a freshly-created destination dir. No-op when the
-        agent has no skills."""
         assert isinstance(plan, DockerBottlePlan)
-        agent = plan.spec.manifest.agents[plan.spec.agent_name]
+        _skills.provision_skills(plan, target)
-        if not agent.skills:
-            return
-
-        container = target
-        container_home = os.environ.get("CLAUDE_BOTTLE_CONTAINER_HOME", "/home/node")
-        skills_dir = os.environ.get(
-            "CLAUDE_BOTTLE_CONTAINER_SKILLS_DIR", f"{container_home}/.claude/skills"
-        )
-
-        subprocess.run(
-            ["docker", "exec", container, "mkdir", "-p", skills_dir],
-            stdout=subprocess.DEVNULL,
-            check=True,
-        )
-
-        for n in agent.skills:
-            src = host_skill_dir(n)
-            if not os.path.isdir(src):
-                die(f"skill '{n}' disappeared from host between validation and copy at {src}.")
-            dst = f"{skills_dir}/{n}"
-            info(f"copying skill {n} into {container}:{dst}")
-            subprocess.run(
-                ["docker", "exec", container, "rm", "-rf", dst],
-                stdout=subprocess.DEVNULL,
-                check=True,
-            )
-            subprocess.run(
-                ["docker", "exec", container, "mkdir", "-p", dst],
-                stdout=subprocess.DEVNULL,
-                check=True,
-            )
-            subprocess.run(
-                ["docker", "cp", f"{src}/.", f"{container}:{dst}/"],
-                stdout=subprocess.DEVNULL,
-                check=True,
-            )
 
     def validate_ssh_entries(self, entries: Sequence[SshEntry]) -> None:
         """Each entry's IdentityFile must exist on the host (after

claude_bottle/backend/docker/provision/skills.py

@@ -0,0 +1,62 @@
+"""Copy host-side skill directories into a running Docker bottle.
+
+Skills are validated on the host before launch by
+`DockerBottleBackend.validate_skills`; this module assumes that
+validation has already run. A skill disappearing between validation
+and copy still dies loudly rather than silently producing a partial
+container."""
+
+from __future__ import annotations
+
+import os
+import subprocess
+
+from ....log import die, info
+from ...util import host_skill_dir
+from ..bottle_plan import DockerBottlePlan
+
+
+def provision_skills(plan: DockerBottlePlan, target: str) -> None:
+    """Copy each of the agent's named skills from the host's
+    ~/.claude/skills/<name>/ into the container's equivalent path.
+    For each skill: ensure parent dir, wipe any prior copy, then
+    `docker cp <host>/. <container>:<dst>/` so the contents are
+    copied into a freshly-created destination dir. No-op when the
+    agent has no skills."""
+    agent = plan.spec.manifest.agents[plan.spec.agent_name]
+    if not agent.skills:
+        return
+
+    container = target
+    container_home = os.environ.get("CLAUDE_BOTTLE_CONTAINER_HOME", "/home/node")
+    skills_dir = os.environ.get(
+        "CLAUDE_BOTTLE_CONTAINER_SKILLS_DIR", f"{container_home}/.claude/skills"
+    )
+
+    subprocess.run(
+        ["docker", "exec", container, "mkdir", "-p", skills_dir],
+        stdout=subprocess.DEVNULL,
+        check=True,
+    )
+
+    for n in agent.skills:
+        src = host_skill_dir(n)
+        if not os.path.isdir(src):
+            die(f"skill '{n}' disappeared from host between validation and copy at {src}.")
+        dst = f"{skills_dir}/{n}"
+        info(f"copying skill {n} into {container}:{dst}")
+        subprocess.run(
+            ["docker", "exec", container, "rm", "-rf", dst],
+            stdout=subprocess.DEVNULL,
+            check=True,
+        )
+        subprocess.run(
+            ["docker", "exec", container, "mkdir", "-p", dst],
+            stdout=subprocess.DEVNULL,
+            check=True,
+        )
+        subprocess.run(
+            ["docker", "cp", f"{src}/.", f"{container}:{dst}/"],
+            stdout=subprocess.DEVNULL,
+            check=True,
+        )