fix history using PROMPT_COMMAND

Author: gilesknap

.devcontainer/features/bash-config/config/bash-config-rc

@@ -2,15 +2,13 @@
 
 # default opinioned bash configuration
 
-# set the prompt
-export PS1="\[\033[1;34m\]\W \[\033[0m\]# "
-
 # enable enternal shared history
 export HISTCONTROL=ignoreboth:erasedups
 export HISTSIZE=-1
 export HISTFILESIZE=-1
 export SAVEHIST=-1
 export HISTFILE=$CONFIG_FOLDER/.bash_eternal_history
+export PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
 
 # bash theme - partly inspired by https://github.com/ohmyzsh/ohmyzsh/blob/master/themes/robbyrussell.zsh-theme
 # from https://github.com/devcontainers/features/blob/main/src/common-utils/scripts/bash_theme_snippet.sh

.devcontainer/features/bash-config/config/onCreateCommand.sh

@@ -12,5 +12,5 @@ if [[ ! -f $CONFIG_FOLDER/bashrc ]] ; then
 fi
 
 # hook in the config to the root account
-ln -s $CONFIG_FOLDER/inputrc /root/.inputrc
+ln -fs $CONFIG_FOLDER/inputrc /root/.inputrc
 echo "source $CONFIG_FOLDER/bashrc" >> /root/.bashrc