Move aws-cli config directories under XDG Base Directory

Refs.
- https://github.com/aws/aws-cli/blob/cb531ad1ba2047da51ea1c918658c4001a39bd78/README.rst#configuration

See also:
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial
- aws/aws-sdk#30
- aws/aws-cli@fc5961e

.bash/variables.sh

@@ -80,6 +80,8 @@ export HISTIGNORE="history:cd:pwd:exit:date:* --help"
 export TERM=xterm-256color
 
 export AWS_PROFILE=default
+export AWS_CONFIG_FILE="$XDG_CONFIG_HOME/aws/config"
+export AWS_SHARED_CREDENTIALS_FILE="$XDG_CONFIG_HOME/aws/credentials"
 
 export DISABLE_SPRING=1
 

.gitignore

@@ -7,3 +7,4 @@
 .vim/swaps/*
 .vim/tags
 .vim/undo/*
+config/aws/*

.zsh/variables.zsh

@@ -86,6 +86,8 @@ export HISTFILE=~/.zsh_history
 export TERM=xterm-256color
 
 export AWS_PROFILE=default
+export AWS_CONFIG_FILE="$XDG_CONFIG_HOME/aws/config"
+export AWS_SHARED_CREDENTIALS_FILE="$XDG_CONFIG_HOME/aws/credentials"
 
 export DISABLE_SPRING=1
 

bin/put_settings.sh

@@ -36,7 +36,7 @@ if [ -d "$SETTINGS_PATH/.vim" ]; then
   ln -s "$SETTINGS_PATH/.vim" "$XDG_CONFIG_HOME/nvim"
 fi
 
-for app in "git" "starship" "lsd" "sheldon" "bundle" "readline" "gem" "irb" "rspec" "tmux" "tig" "mise" "asdf" "direnv"; do
+for app in "git" "starship" "lsd" "sheldon" "bundle" "readline" "gem" "irb" "rspec" "tmux" "tig" "mise" "asdf" "direnv" "aws"; do
   if [ -L "$XDG_CONFIG_HOME/$app" ]; then
     unlink "$XDG_CONFIG_HOME/$app"
   fi