mazgi · October 23, 2020 22:58
diff --git a/00.README.md b/00.README.md
diff --git a/10.console.md b/10.console.md
diff --git a/effective-way.zsh b/effective-way.zsh
 #!/usr/bin/env -S zsh -eux

 :

 if [[ ${#funcstack[@]} -ne 0 ]]; then
  echo 'the script is being sourced.'
  return 0
 fi

 echo 'certainly, it was running as a subshell.'
diff --git a/funcstack.zsh b/funcstack.zsh
 #!/usr/bin/env -S zsh -eu
 echo "#funcstack: ${#funcstack[@]}"
 echo "funcstack: ${funcstack[@]}"
diff --git a/traditional-way-wrong-1.zsh b/traditional-way-wrong-1.zsh
 #!/usr/bin/env -S zsh -eux

 :

 [[ $_ = $0 ]] && {
  echo 'the script is being sourced.'
  return 0
 }

 echo 'probably, it was running as a subshell.'
diff --git a/traditional-way-wrong-2.zsh b/traditional-way-wrong-2.zsh
 #!/usr/bin/env -S zsh -eux

 if [[ $_ = $0 ]]; then
  echo 'the script is being sourced.'
  return 0
 fi

 echo 'probably, it was running as a subshell.'
diff --git a/traditional-way.zsh b/traditional-way.zsh
 #!/usr/bin/env -S zsh -eux

 [[ $_ = $0 ]] && {
  echo 'the script is being sourced.'
  return 0
 }

 echo 'probably, it was running as a subshell.'
	#!/usr/bin/env -S zsh -eux

	:

	if [[ ${#funcstack[@]} -ne 0 ]]; then
	echo 'the script is being sourced.'
	return 0
	fi

	echo 'certainly, it was running as a subshell.'
	#!/usr/bin/env -S zsh -eux

	:

	[[ $_ = $0 ]] && {
	echo 'the script is being sourced.'
	return 0
	}

	echo 'probably, it was running as a subshell.'
	#!/usr/bin/env -S zsh -eux

	if [[ $_ = $0 ]]; then
	echo 'the script is being sourced.'
	return 0
	fi

	echo 'probably, it was running as a subshell.'