Updated renaming script to rename only required files and directories (#40)

Author: Harishankar-Ericsson

set_app_name.sh

@@ -2,6 +2,15 @@
 
 set -e
 
+# Defining ANSI color codes for terminal output
+RED='\e[0;31m'
+LIGHT_RED='\e[0;91m'
+ORANGE='\e[38;5;208m'
+YELLOW='\e[0;33m'
+GREEN='\e[38;5;10m'
+BLUE='\e[38;5;81m'
+DEFAULT='\e[0m'
+
 # More reliable than `sed -i` if we're on WSL and handling Windows paths
 wsl_safe_sed_replace() {
   local pattern=$1
@@ -12,54 +21,74 @@ wsl_safe_sed_replace() {
   sed "$pattern" "$file" > "$tmpfile" && mv -f "$tmpfile" "$file"
 }
 
-if [[ -z "$APP_NAME_SUFFIX" ]]; then
-  echo "Error: APP_NAME_SUFFIX environment variable must be set."
+echo -e "\n${ORANGE}=================Executing renaming script=================${DEFAULT}"
+
+if [[ -z "$APP_NAME" ]]; then
+  echo -e "${RED}\n===========================================================${DEFAULT}"
+  echo -e "${RED}Error${DEFAULT}: ${BLUE}APP_NAME${DEFAULT} environment variable must be set. Exiting..."
+  echo -e "${RED}===========================================================\n${DEFAULT}"
   exit 1
 fi
 
-PATTERN="^[a-z0-9]([-a-z0-9]*[a-z0-9])?$"
-
-if [[ "$APP_NAME_SUFFIX" != "APP_NAME_SUFFIX" ]]; then
-  if ! [[ "$APP_NAME_SUFFIX" =~ $PATTERN ]]; then
-    echo "Error: New app name '$APP_NAME_SUFFIX' is not a valid Helm chart name."
-    echo "It must:"
-    echo "  - Use only lowercase letters, numbers, and dashes (-)"
-    echo "  - Start and end with an alphanumeric character"
+if [[ "$APP_NAME" != "APP_NAME" ]]; then
+  if ! [[ "$APP_NAME" =~ ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$ ]]; then
+    echo -e "${RED}\n===========================================================${DEFAULT}"
+    echo -e "${RED}Error${DEFAULT}: New App name '$APP_NAME' is not a valid Helm chart name."
+    echo -e "It must:"
+    echo -e "  - Use only lowercase letters, numbers, and dashes (-)"
+    echo -e "  - Start and end with an alphanumeric character"
+    echo -e "Exiting..."
+    echo -e "${RED}===========================================================\n${DEFAULT}"
     exit 1
   fi
 else
-  echo "WARNING: APP_NAME_SUFFIX can be set only as a placeholder. APP_NAME_SUFFIX is not valid for development purposes"
+  echo -e "\n${LIGHT_RED}WARNING${DEFAULT}: APP_NAME can be set only as a placeholder. APP_NAME is not a valid name for development purposes."
 fi
 
-APP_NAME_PREFIX="eric-oss-hello-world-python-"
-NEW_APP_NAME="$APP_NAME_PREFIX$APP_NAME_SUFFIX"
-
-if [[ ${#NEW_APP_NAME} -gt 53 ]]; then
-  echo "$NEW_APP_NAME exceeds 53 characters. Helm chart name must be at most 53 characters."
+if [[ ${#APP_NAME} -gt 53 ]]; then
+  echo -e "${RED}\n===========================================================${DEFAULT}"
+  echo -e "The ${BLUE}APP_NAME${DEFAULT} exceeds 53 characters. Helm chart name must be at most 53 characters. ${RED}Exiting...${DEFAULT}"
+  echo -e "${RED}===========================================================\n${DEFAULT}"
   exit 1
 fi
 
-# Accept list of target paths as arguments in case we want to limit to specific paths
-INPUT_PATHS=("$@")
+# Setting target directory
+if [[ -z "$1"  ]]; then
+  TARGET_DIR="${TARGET_DIR:-$(pwd)}"
+else
+  TARGET_DIR=$1
+fi
 
+echo -e "\nUsing ${BLUE}TARGET_DIR${DEFAULT} as: $TARGET_DIR"
+
+# List of target paths
+INPUT_PATHS=("charts/" "csar/" "eric-oss-hello-world-python-app/")
+
+# Print directories
 if [[ ${#INPUT_PATHS[@]} -gt 0 ]]; then
-  echo "Using provided paths as targets:"
+  echo -e "\nExecuting the script in the following directories:"
   for path in "${INPUT_PATHS[@]}"; do
-    if [[ ! -e "$path" ]]; then
-      echo "Error: '$path' does not exist."
+    if [[ ! -e "${TARGET_DIR}/${path}" ]]; then
+      echo -e "${RED}\n===========================================================${DEFAULT}"
+      echo -e "${RED}Error${DEFAULT}: directory '$path' does not exist. Exiting..."
+      echo -e "${RED}===========================================================\n${DEFAULT}"
       exit 1
     fi
     echo " - $path"
   done
+
+  count=0
+  for path in "${INPUT_PATHS[@]}"; do
+    INPUT_PATHS[$count]="${TARGET_DIR}/${path}"
+    count=$((count + 1))
+  done
 else
-  TARGET_DIR="${TARGET_DIR:-$(pwd)}"
-  echo "Using TARGET_DIR as: $TARGET_DIR"
   INPUT_PATHS=("$TARGET_DIR")
 fi
 
 chart_dirs=()
 
-# Collect the app's chart(s)
+# Collect the App's chart(s)
 for path in "${INPUT_PATHS[@]}"; do
   if [[ -d "$path" && -d "$path/charts" ]]; then
     chart_dirs+=("$path/charts"/*)
@@ -69,54 +98,58 @@ for path in "${INPUT_PATHS[@]}"; do
   fi
 done
 
-# Expect only one chart present and assume we can use its name as our current APP_NAME
+# Expect only one chart present and assume we can use its name as our APP_NAME
 if [[ ! -d "${chart_dirs[0]}" || ${#chart_dirs[@]} -ne 1 ]]; then
-  echo "Error: No valid subdirectories found in provided paths' charts/ directories."
+  echo -e "${RED}\n===========================================================${DEFAULT}"
+  echo -e "${RED}Error${DEFAULT}: No valid subdirectories found in provided paths' charts/ directories."
+  echo -e "${RED}===========================================================\n${DEFAULT}"
   exit 1
 fi
 
 CURRENT_APP_NAME=$(basename "${chart_dirs[0]}")
-echo "Detected CURRENT_APP_NAME as '$CURRENT_APP_NAME'"
+echo -e "\nDetected ${BLUE}CURRENT_APP_NAME${DEFAULT} as '$CURRENT_APP_NAME'"
 
-if [[ "$CURRENT_APP_NAME" == "$NEW_APP_NAME" ]]; then
-  echo "Provided NEW_APP_NAME is the same as CURRENT_APP_NAME. Exiting..."
+if [[ "$CURRENT_APP_NAME" == "$APP_NAME" ]]; then
+  echo -e "\n${RED}Provided ${BLUE}APP_NAME${RED} is the same as ${BLUE}CURRENT_APP_NAME${RED}. Exiting...${DEFAULT}"
   exit 1
 fi
 
 script_file=$(basename "$0")
 
-echo "Replacing '$CURRENT_APP_NAME' with '$NEW_APP_NAME' in provided paths..."
+echo -e "\nReplacing '$CURRENT_APP_NAME' with '$APP_NAME'...\n"
 
-echo "Updating file contents..."
+echo -e "${YELLOW}Updating file contents...${DEFAULT}"
 for path in "${INPUT_PATHS[@]}"; do
   grep -rl "$CURRENT_APP_NAME" "$path" | while read -r file; do
     if [[ $(basename "$file") != "$script_file" && $(basename "$file") != docker.tar* ]]; then
-      wsl_safe_sed_replace "s/$CURRENT_APP_NAME/$NEW_APP_NAME/g" "$file"
+      wsl_safe_sed_replace "s/$CURRENT_APP_NAME/$APP_NAME/g" "$file"
     fi
   done
 done
 
-echo "Renaming files..."
+echo -e "${YELLOW}Renaming files...${DEFAULT}"
 for path in "${INPUT_PATHS[@]}"; do
   find "$path" -depth -type f -name "*$CURRENT_APP_NAME*" | while read -r file; do
     if [[ $(basename "$file") != "$script_file" ]]; then
-      newfile="$(dirname "$file")/$(basename "$file" | sed "s/$CURRENT_APP_NAME/$NEW_APP_NAME/g")"
+      newfile="$(dirname "$file")/$(basename "$file" | sed "s/$CURRENT_APP_NAME/$APP_NAME/g")"
       mv -f "$file" "$newfile"
     fi
   done
 done
 
-echo "Renaming directories..."
+echo -e "${YELLOW}Renaming directories...${DEFAULT}"
 for path in "${INPUT_PATHS[@]}"; do
   find "$path" -depth -type d -name "*$CURRENT_APP_NAME*" | while read -r dir; do
     # Skip renaming the outermost directory itself
     if [[ "$(realpath "$dir")" == "$(realpath "$path")" ]]; then
       continue
     fi
 
-    newdir="$(dirname "$dir")/$(basename "$dir" | sed "s/$CURRENT_APP_NAME/$NEW_APP_NAME/g")"
+    newdir="$(dirname "$dir")/$(basename "$dir" | sed "s/$CURRENT_APP_NAME/$APP_NAME/g")"
     mv -f "$dir" "$newdir"
   done
 done
 
-echo "Finished renaming."
+echo -e "${GREEN}\n===========================================================${DEFAULT}"
+echo -e "${GREEN}Finished renaming.${DEFAULT}"
+echo -e "${GREEN}===========================================================\n${DEFAULT}"