[multiple] Move shell files to define load order

macos/.config/shell-common/01_macos_xdg.sh

@@ -0,0 +1,5 @@
+# shellcheck shell=bash
+
+# Override XDG cache location for macOS to use the standard Library/Caches directory
+export XDG_CACHE_HOME="$HOME/Library/Caches"
+export XDG_RUNTIME_DIR="${TMPDIR}runtime-${UID}"

macos/.config/shell-common/99_macos.sh

@@ -1,17 +1,17 @@
 # shellcheck shell=bash
 
-# Override XDG cache location for macOS to use the standard Library/Caches directory
-export XDG_CACHE_HOME="$HOME/Library/Caches"
-export XDG_RUNTIME_DIR="${TMPDIR}runtime-${UID}"
-
 # Configure Homebrew environment
+if [ -d /opt/homebrew ]; then
     export HOMEBREW_NO_ENV_HINTS=1
-[ -d /opt/homebrew ] && eval "$(/opt/homebrew/bin/brew shellenv)"
+    eval "$(/opt/homebrew/bin/brew shellenv)"
+fi
 
 # Flushes the DNS cache on macOS
 function flushdns() {
     if [[ $(uname) == "Darwin" ]]; then
-        sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder; echo 'DNS cache flushed.'
+        sudo dscacheutil -flushcache
+        sudo killall -HUP mDNSResponder
+        echo 'DNS cache flushed.'
     else
         echo 'This only works on macOS...'
     fi
@@ -31,6 +31,10 @@ function itsok() {
 # Runs a brew bundle check and installs missing packages
 # Usage: update-brewfile
 function update-brewfile() {
+    if ! [ -x $(command -v brew) ]; then
+        echo "Homebrew is not installed. Please install it first."
+        return 1
+    fi
     brew bundle check --global || brew bundle --cleanup -f --global
 }
 
@@ -39,7 +43,12 @@ function update-brewfile() {
 # app_name<TAB>app_path<TAB>app_type
 # where app_type can be "persisentApps" or "other"
 # Usage: update-dock
+
 function update-dock() {
+    if ! [ -x $(command -v dockutil) ]; then
+        echo "dockutil is not installed. Please install it via Homebrew: brew install dockutil"
+        return 1
+    fi
     idx=1
     while read entry; do
         app_name=$(echo "$entry" | cut -d $'\t' -f 1)

shell-common/.config/shell-common/99_aws.sh

@@ -2,6 +2,10 @@
 
 # Get the list of AWS profiles
 function awsprofiles() {
+    if ! [ -x $(command -v aws) ]; then
+        echo "AWS CLI not installed."
+        return 1
+    fi
     profiles=$(aws --no-cli-pager configure list-profiles 2>/dev/null)
     if [[ -z "$profiles" ]]; then
         echo "No AWS profiles found in '$HOME/.aws/config, check if ~/.aws/config exists and properly configured.'"
@@ -13,6 +17,13 @@ function awsprofiles() {
 
 # login via SSO to AWS
 function awslogin() {
+    for cmd in "aws" "fzf"; do
+        if ! [ -x "$(command -v $cmd)" ]; then
+            echo "$cmd is not installed. Please install it to use awslogin."
+            return 1
+        fi
+    done
+
     local profile=""
     local region=""
 
@@ -92,6 +103,10 @@ function awslogin() {
 
 # Clear AWS credentials from environment
 function awslogout() {
+    if ! [ -x "$(command -v aws)" ]; then
+        echo "AWS CLI not installed."
+        return 1
+    fi
     aws sso logout --profile "${AWS_PROFILE:-default}" 2>/dev/null
     unset AWS_PROFILE AWS_PROFILE_ACTIVE AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_SESSION_TOKEN AWS_CREDENTIAL_EXPIRATION
     echo "AWS profile and credentials cleared."

shell-common/.config/shell-common/99_terraform.sh

@@ -0,0 +1,10 @@
+# shellcheck shell=bash
+# Terraform helpers
+
+if [ -x "$(command -v terraform)" ]; then
+    # Define a shared cache location for Terraform plugins
+    export TF_PLUGIN_CACHE_DIR="${XDG_CACHE_HOME}/terraform-plugins"
+
+    alias tfplan="terraform plan -out=tfplan.binary"
+    alias tf="terraform"
+fi