Cleanup behavior to function when things are missing

_home/dot_sz.shrc.d/bash.post/10_oh-my-posh

@@ -1 +1,6 @@
-eval "$(oh-my-posh init bash --config ~/.poshtheme.omp.json)"
+if [[ -n "$(type -fP oh-my-posh)" ]]; then
+  OHMYPOSH_CONFIG=''
+  [[ -r ~/.poshtheme.omp.json ]] && OHMYPOSH_CONFIG="~/.poshtheme.omp.json"
+  eval "$(oh-my-posh init bash --config $OHMYPOSH_CONFIG)"
+  unset OHMYPOSH_CONFIG
+fi

_home/dot_sz.shrc.d/bash.post/99_chezmoi.complete

@@ -1 +1 @@
-source <(chezmoi completion bash)
+[[ -n "$BASH_COMPLETION_EXIST" && -n $(type -fP chezmoi) ]] && source <(chezmoi completion bash)

_home/dot_sz.shrc.d/bash.post/99_gcloud.complete

@@ -1,4 +1,4 @@
 # The next line updates PATH for the Google Cloud SDK.
-if [ -f '/usr/lib/google-cloud-sdk/path.bash.inc' ]; then source '/usr/lib/google-cloud-sdk/path.bash.inc'; fi
-# The next line enables shell command completion for gcloud.
-if [ -f '/usr/lib/google-cloud-sdk/completion.bash.inc' ]; then source '/usr/lib/google-cloud-sdk/completion.bash.inc'; fi
+[[ -f '/usr/lib/google-cloud-sdk/path.bash.inc' ]] && source '/usr/lib/google-cloud-sdk/path.bash.inc'
+# The next line enables shell command completion for gcloud (as long as gcloud is IN the path).
+[[ -n "$(type -fP gcloud)" && -f '/usr/lib/google-cloud-sdk/completion.bash.inc' ]] && source '/usr/lib/google-cloud-sdk/completion.bash.inc'

_home/dot_sz.shrc.d/bash.post/99_pip.completion

@@ -1,2 +1,2 @@
-source <(pip completion --bash)
+[[ -n $(type -fP pip) ]] && source <(pip completion --bash)
 

_home/dot_sz.shrc.d/bash.post/99_terraform.complete

@@ -1,3 +1,4 @@
-if [ -r /usr/bin/terraform ]; then
-  complete -C /usr/bin/terraform terraform
+TERRAFORM_BIN=$(type -fP terraform | head -1)
+if [[ -n $TERRAFORM_BIN ]]; then
+  complete -C $TERRAFORM_BIN terraform
 fi