v3.5.0

=====================================================================

--- Changes ------------------------------

- AWS (the cli wrapper) now checks for it's required variables *on run*.
  This accomodates scwrypts which may need to run in multiple regions,
  but make the downstream scwrypt responsible for adding AWS_REGION to
  the REQUIRED_ENV list!

- Got rid of all kinds of hackiness surrounding postgres password evals
  between both the postgres library and the rds library

--- Bug Fixes ----------------------------

- scwrypts --update now pulls tags for proper versioning

zsh/lib/utils/dependencies.zsh

@@ -1,5 +1,6 @@
 __CHECK_DEPENDENCIES() {
 	local DEP ERROR=0
+	[ ! $E ] && E=ERROR
 
 	DEPENDENCIES=($(echo $DEPENDENCIES | sed 's/ \+/\n/g' | sort -u))
 
@@ -13,7 +14,7 @@ __CHECK_DEPENDENCY() {
 	local DEPENDENCY="$1"
 	[ ! $DEPENDENCY ] && return 1
 	command -v $DEPENDENCY >/dev/null 2>&1 || {
-		ERROR "'$1' required but not available on PATH $(__CREDITS $1)"
+		$E "application '$1' "$([[ $OPTIONAL -eq 1 ]] && echo preferred || echo required)" but not available on PATH $(__CREDITS $1)"
 		return 1
 	}
 }

zsh/lib/utils/environment.zsh

@@ -32,7 +32,7 @@ __CHECK_ENV_VAR() {
 		[ $DEFAULT_VALUE ] && $NAME="$DEFAULT_VALUE"
 		return 0
 	} || {
-		 ERROR "'$NAME' required"
+		ERROR "variable '$NAME' required"
 		return 1
 	}
 }

zsh/lib/utils/io.zsh

@@ -99,7 +99,7 @@ Yn() {
 	PROMPT "$@ [Yn]"
 	[ $CI ] && { echo y; return 0; }
 
-	local Yn; READ -k Yn; echo
+	local Yn; READ -k Yn; echo >&2
 	[[ $Yn =~ [nN] ]] && return 1 || return 0
 }
 
@@ -107,7 +107,7 @@ yN() {
 	PROMPT "$@ [yN]"
 	[ $CI ] && { echo y; return 0; }
 
-	local yN; READ -k yN; echo
+	local yN; READ -k yN; echo >&2
 	[[ $yN =~ [yY] ]] && return 0 || return 1
 }
 

zsh/lib/utils/utils.module.zsh

@@ -18,6 +18,12 @@ source ${0:a:h}/environment.zsh
 #####################################################################
 
 CHECK_ENVIRONMENT() {
+	local OPTIONAL=0
+	[[ $1 =~ --optional ]] && OPTIONAL=1
+
+	[[ $OPTIONAL -eq 1 ]] \
+		&& E=WARNING || E=ERROR
+
 	local ENVIRONMENT_STATUS=0
 
 	__CHECK_DEPENDENCIES $DEPENDENCIES
@@ -55,9 +61,9 @@ CHECK_ENVIRONMENT() {
 
 	##########################################
 
-	[[ ENVIRONMENT_STATUS -eq 0 ]] || {
+	[[ ENVIRONMENT_STATUS -ne 0 ]] && [[ $OPTIONAL -eq 0 ]] && {
 		ERROR_MESSAGE=$(echo $ERROR_MESSAGE | sed '1d; s/^/   /')
-		ERROR "environment errors found (see above)\n$ERROR_MESSAGE"
+		$E "environment errors found (see above)\n$ERROR_MESSAGE"
 	}
 
 	[[ $MISSING_ENVIRONMENT_VARIABLES -ne 0 ]] && {
@@ -67,10 +73,11 @@ CHECK_ENVIRONMENT() {
 		"
 	}
 
-	[[ $ENVIRONMENT_STATUS -eq 0 ]] || {
-		[[ $NO_EXIT -eq 1 ]] && return $ENVIRONMENT_STATUS
+	[[ $ENVIRONMENT_STATUS -ne 0 ]] && [[ $NO_EXIT -ne 1 ]] && [[ $OPTIONAL -eq 0 ]] && {
 		exit $ENVIRONMENT_STATUS
 	}
+
+	return $ENVIRONMENT_STATUS
 }
 
 CHECK_ENVIRONMENT