feat(r-dependent-packages): new skip option to skip R package installation (#241)

Author: eitsupi

src/r-dependent-packages/devcontainer-feature.json

@@ -1,7 +1,7 @@
 {
 	"name": "R packages from the DESCRIPTION file (via pak)",
 	"id": "r-dependent-packages",
-	"version": "0.1.0",
+	"version": "0.2.0",
 	"description": "This Feature sets scripts to install dependent R packages from the DESCRIPTION file in the repository.",
 	"documentationURL": "https://github.com/rocker-org/devcontainer-features/tree/main/src/r-dependent-packages",
 	"options": {
@@ -11,9 +11,10 @@
 			"enum": [
 				"onCreate",
 				"updateContent",
-				"postCreate"
+				"postCreate",
+				"skip"
 			],
-			"description": "When to install the dependent R packages? Each option corresponds to the lifecycle scripts."
+			"description": "When to install the dependent R packages? Each option corresponds to the lifecycle scripts. 'skip' means to skip the installation."
 		},
 		"pakVersion": {
 			"type": "string",

src/r-dependent-packages/install.sh

@@ -78,10 +78,11 @@ install_pak "${PAK_VERSION}"
 
 # Replace the target lifecycle script
 echo "Set the lifecycle script for '${WHEN}'..."
+LIFECYCLE_SCRIPT_PATH="${LIFECYCLE_SCRIPTS_DIR}/${WHEN,,}.sh"
 sed \
     -e "s|@ROOT@|${ROOT}|" \
     -e "s|@REPOS@|${REPOS//"'"/'"'}|" \
     -e "s|@DEPS@|${DEPS}|" \
-    lifecycle_script.sh >"${LIFECYCLE_SCRIPTS_DIR}/${WHEN,,}.sh"
-
+    lifecycle_script.sh >"${LIFECYCLE_SCRIPT_PATH}"
+echo "The lifecycle script is generated at '${LIFECYCLE_SCRIPT_PATH}'"
 echo "Done!"

src/r-dependent-packages/lifecycle_script.sh

@@ -19,6 +19,7 @@ fix_permissions() {
 
 fix_permissions "${PKG_PACKAGE_CACHE_DIR}"
 
+echo "The manifest DESCRIPTION file was set to '@ROOT@/DESCRIPTION'"
 echo "Install dependent R packages..."
 
 R -q -e \

test/r-dependent-packages/r-ver-skip.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Optional: Import test library bundled with the devcontainer CLI
+source dev-container-features-test-lib
+
+# Feature-specific tests
+check "R pak package" bash -c "R -q -e 'names(installed.packages()[, 3])' | grep pak"
+
+# Report result
+reportResults

test/r-dependent-packages/scenarios.json

@@ -16,6 +16,14 @@
 			}
 		}
 	},
+	"r-ver-skip": {
+		"image": "rocker/r-ver:4",
+		"features": {
+			"r-dependent-packages": {
+				"when": "skip"
+			}
+		}
+	},
 	"r-ver-updatecontent": {
 		"image": "rocker/r-ver:4",
 		"features": {