Copier update: support Clone Repository in Container Volume

Retarget the devcontainer workspace bind mount via WORKSPACE_MOUNT_TARGET
so it works when VS Code clones the repo into a Docker volume.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: ejfine

.config/.copier-answers.yml

@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: v0.1.7
+_commit: v0.1.7-1-g74f764a1
 _src_path: gh:LabAutomationAndScreening/copier-base-template.git
 copier_answers_directory: .config
 description: Copier template for creating Python libraries and executables

.devcontainer/devcontainer.json

@@ -67,5 +67,5 @@
   "initializeCommand": "sh .devcontainer/initialize-command.sh",
   "onCreateCommand": "sh .devcontainer/on-create-command.sh",
   "postStartCommand": "sh .devcontainer/post-start-command.sh"
-  // Devcontainer context hash (do not manually edit this, it's managed by a pre-commit hook): 079f70d6 # spellchecker:disable-line
+  // Devcontainer context hash (do not manually edit this, it's managed by a pre-commit hook): 6b104ca4 # spellchecker:disable-line
 }

.devcontainer/docker-compose.yml

@@ -15,7 +15,7 @@ services:
         REPO_NAME: copier-python-package-template
     # You can run `devcontainer-info content-url` in codespaces to see what image base is
     volumes:
-      - ..:/workspaces/copier-python-package-template:cached
+      - ..:${WORKSPACE_MOUNT_TARGET:-/workspaces/copier-python-package-template}
       # Break out the venv folder as a separate docker volume for better performance on Windows hosts
       - python_venv:/workspaces/copier-python-package-template/.venv
     command: sleep infinity

.devcontainer/initialize-command.sh

@@ -7,6 +7,15 @@ if [ -n "$CODESPACES" ] && [ "$CODESPACES" = "true" ]; then
     docker image prune --all --force
 fi
 
+# "Clone Repository in Container Volume" runs this inside a bootstrap container that has the cloned volume mounted at /workspaces.
+# The compose bind mount of `..` then points at a path the Docker host doesn't have, so it gets retargeted onto /workspaces where VS Code's own volume mount replaces it.
+workspace_mount_type=$(docker inspect --format '{{range .Mounts}}{{if eq .Destination "/workspaces"}}{{.Type}}{{end}}{{end}}' "$HOSTNAME" 2>/dev/null || true)
+if [ "$workspace_mount_type" = "volume" ]; then
+    echo "WORKSPACE_MOUNT_TARGET=/workspaces" > .devcontainer/.env
+else
+    : > .devcontainer/.env
+fi
+
 # ============== WARNING ==============================================================================
 # File is managed by copier template: gh:LabAutomationAndScreening/copier-base-template.git
 # See .config/.copier-managed-files.json for details.

.gitignore

@@ -126,5 +126,7 @@ dist
 # Devcontainer
 # The devcontainer CLI writes this lock file to pin feature digests, but we are not using it yet
 .devcontainer/devcontainer-lock.json
+# Written by initialize-command.sh on every devcontainer start
+.devcontainer/.env
 
 # Ignores specific to this repository

template/.devcontainer/docker-compose.yml.jinja

@@ -8,7 +8,7 @@
         REPO_NAME: {% endraw %}{{ repo_name }}{% raw %}
     # You can run `devcontainer-info content-url` in codespaces to see what image base is
     volumes:
-      - ..:/workspaces/{% endraw %}{{ repo_name }}{% raw %}:cached
+      - ..:${WORKSPACE_MOUNT_TARGET:-/workspaces/{% endraw %}{{ repo_name }}{% raw %}}
       # Break out the venv folder as a separate docker volume for better performance on Windows hosts
       - python_venv:/workspaces/{% endraw %}{{ repo_name }}{% raw %}/.venv
     command: sleep infinity

template/.devcontainer/initialize-command.sh

@@ -7,6 +7,15 @@ if [ -n "$CODESPACES" ] && [ "$CODESPACES" = "true" ]; then
     docker image prune --all --force
 fi
 
+# "Clone Repository in Container Volume" runs this inside a bootstrap container that has the cloned volume mounted at /workspaces.
+# The compose bind mount of `..` then points at a path the Docker host doesn't have, so it gets retargeted onto /workspaces where VS Code's own volume mount replaces it.
+workspace_mount_type=$(docker inspect --format '{{range .Mounts}}{{if eq .Destination "/workspaces"}}{{.Type}}{{end}}{{end}}' "$HOSTNAME" 2>/dev/null || true)
+if [ "$workspace_mount_type" = "volume" ]; then
+    echo "WORKSPACE_MOUNT_TARGET=/workspaces" > .devcontainer/.env
+else
+    : > .devcontainer/.env
+fi
+
 # ============== WARNING ==============================================================================
 # File is managed by copier template: gh:LabAutomationAndScreening/copier-base-template.git
 # See .config/.copier-managed-files.json for details.

template/.gitignore

@@ -126,5 +126,7 @@ dist
 # Devcontainer
 # The devcontainer CLI writes this lock file to pin feature digests, but we are not using it yet
 .devcontainer/devcontainer-lock.json
+# Written by initialize-command.sh on every devcontainer start
+.devcontainer/.env
 
 # Ignores specific to this repository