Make symlinks smarter.

CMakeLists.txt

@@ -53,12 +53,23 @@ install(TARGETS dropshell
 
 # Create symbolic link 'ds' pointing to 'dropshell'
 install(CODE "
-    message(STATUS \"Creating symlink: ds -> dropshell\")
+    message(STATUS \"Checking if 'ds' command already exists...\")
+    execute_process(
+        COMMAND which ds
+        RESULT_VARIABLE DS_NOT_EXISTS
+        OUTPUT_QUIET
+        ERROR_QUIET
+    )
+    if(DS_NOT_EXISTS)
+        message(STATUS \"Command 'ds' does not exist. Creating symlink.\")
         execute_process(
             COMMAND ${CMAKE_COMMAND} -E create_symlink 
             \${CMAKE_INSTALL_PREFIX}/bin/dropshell
             \${CMAKE_INSTALL_PREFIX}/bin/ds
         )
+    else()
+        message(STATUS \"Command 'ds' already exists. Skipping symlink creation.\")
+    endif()
 ")
 
 # Install completion script
@@ -69,12 +80,43 @@ install(FILES src/dropshell-completion.bash
 
 # Create a symlink for the completion script to work with 'ds' command
 install(CODE "
-    message(STATUS \"Creating completion script symlink for 'ds'\")
+    # First check if 'ds' command exists after our installation
+    execute_process(
+        COMMAND which ds
+        RESULT_VARIABLE DS_NOT_EXISTS
+        OUTPUT_VARIABLE DS_PATH
+        ERROR_QUIET
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    
+    # Only proceed if 'ds' exists
+    if(NOT DS_NOT_EXISTS)
+        # Check if 'ds' is a symlink pointing to dropshell
+        execute_process(
+            COMMAND readlink -f \${DS_PATH}
+            RESULT_VARIABLE READLINK_FAILED
+            OUTPUT_VARIABLE REAL_PATH
+            ERROR_QUIET
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+        )
+        
+        # Get the path to our dropshell binary
+        set(DROPSHELL_PATH \${CMAKE_INSTALL_PREFIX}/bin/dropshell)
+        
+        # Check if the real path is our dropshell binary
+        if(NOT READLINK_FAILED AND \"\${REAL_PATH}\" STREQUAL \"\${DROPSHELL_PATH}\")
+            message(STATUS \"Command 'ds' exists and points to dropshell. Creating completion script symlink.\")
             execute_process(
                 COMMAND ${CMAKE_COMMAND} -E create_symlink 
                 /etc/bash_completion.d/dropshell
                 /etc/bash_completion.d/ds
             )
+        else()
+            message(STATUS \"Command 'ds' exists but doesn't point to dropshell. Skipping completion symlink.\")
+        endif()
+    else()
+        message(STATUS \"Command 'ds' not found. Skipping completion symlink.\")
+    endif()
 ")
 
 # Create pre-install script to clean old templates