Revert "common-utils overwrites .zshrc coming from image built" (#1094)

* Revert "common-utils overwrites .zshrc coming from image built (#1069)"

This reverts commit 56233fd.

* Update devcontainer-feature.json

Author: samruddhikhandale

src/common-utils/devcontainer-feature.json

@@ -1,6 +1,6 @@
 {
     "id": "common-utils",
-    "version": "2.4.6",
+    "version": "2.4.7",
     "name": "Common Utilities",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/common-utils",
     "description": "Installs a set of common command line utilities, Oh My Zsh!, and sets up a non-root user.",

src/common-utils/main.sh

@@ -491,6 +491,7 @@ if [ "${INSTALL_ZSH}" = "true" ]; then
         echo 'source $HOME/.profile' >> "${user_home}/.zprofile" # TODO: Reconsider adding '.profile' to '.zprofile'
         chown ${USERNAME}:${group_name} "${user_home}/.zprofile"
     fi
+
     if [ "${ZSH_ALREADY_INSTALLED}" != "true" ]; then
         if [ "${ADJUSTED_ID}" = "rhel" ]; then
              global_rc_path="/etc/zshrc"
@@ -542,8 +543,7 @@ if [ "${INSTALL_ZSH}" = "true" ]; then
 
         # Add devcontainer .zshrc template
         if [ "$INSTALL_OH_MY_ZSH_CONFIG" = "true" ]; then
-            template_code="$(cat "${template_path}")\nDISABLE_AUTO_UPDATE=true\nDISABLE_UPDATE_PROMPT=true"
-            echo -e "$([ -f "${user_rc_file}" ] && cat "${user_rc_file}")\n${template_code}" > "${user_rc_file}"
+            echo -e "$(cat "${template_path}")\nDISABLE_AUTO_UPDATE=true\nDISABLE_UPDATE_PROMPT=true" > ${user_rc_file}
             sed -i -e 's/ZSH_THEME=.*/ZSH_THEME="devcontainers"/g' ${user_rc_file}
         fi
 

test/common-utils/devcontainer-ruby-zshrc.sh

@@ -235,24 +235,6 @@
             }
         }
     },
-    "devcontainer-ruby-zshrc": {
-        "build": {
-            "dockerfile": "Dockerfile"
-        },
-        "remoteUser": "vscode",
-        "features": {
-            "common-utils": {
-                "installZsh": true,
-                "username": "vscode",
-                "userUid": "1000",
-                "userGid": "1000",
-                "upgradePackages": true,
-                "installOhMyZsh": true,
-                "installOhMyZshConfig": true,
-                "configureZshAsDefaultShell": true
-            }
-        }
-    },
     "alpine-base-zsh-default": {
         "image": "mcr.microsoft.com/devcontainers/base:alpine",
         "remoteUser": "vscode",