Merge pull request #89 from carpentries/frog-devcon-1

Update devcontainer with mounts and user specification

Author: froggleston

.devcontainer/Dockerfile

@@ -1,6 +1,5 @@
 FROM carpentries/workbench-docker:latest
 
-RUN Rscript -e 'sandpaper::use_package_cache(prompt = FALSE)'
-
-COPY renv/profiles/lesson-requirements/renv.lock .
-RUN Rscript -e 'renv::restore(prompt = FALSE)'
+##  this could be used to run userland scripts e.g.
+##  users could add specific dependencies or configurations
+##  RUN scripts/userland.sh

.devcontainer/devcontainer.json

@@ -1,3 +1,18 @@
 {
-    "build": { "dockerfile": "Dockerfile", "context": ".." }
+    "remoteUser":"rstudio",
+    "workspaceMount": "source=${localWorkspaceFolder},target=/home/rstudio/lesson,type=bind",
+    "workspaceFolder": "/home/rstudio/lesson",
+    "mounts": [
+        "source=${localEnv:HOME}${localEnv:USERPROFILE}/.ssh,target=/home/rstudio/.ssh,type=bind,consistency=cached",
+        "source=${localEnv:HOME}${localEnv:USERPROFILE}/.gnupg,target=/home/rstudio/.gnupg,type=bind,consistency=cached"
+    ],
+    "build": {
+        "dockerfile": "Dockerfile",
+        "context": ".."
+    },
+    "postCreateCommand": {
+        "pre_echo": "echo 'Installing lesson prerequisites - please wait...'",
+        "lesson_deps": "Rscript /home/rstudio/.workbench/setup_lesson_deps.R",
+        "fortify": "Rscript /home/rstudio/.workbench/fortify_renv_cache.R"
+    }
 }