feat: use built-in workflow commands to improve messages (#11)

entrypoint.sh

@@ -3,40 +3,39 @@
 # https://gist.github.com/mohanpedala/1e2ff5661761d3abd0385e8223e16425?permalink_comment_id=3945021
 #set -eo pipefail
 
-DEBUG=true
 WORKING_DIRECTORY=$1
 INPUT_FILE=$2
 OUTPUT_FILE=$3
 INPUT_FILE_PATTERN=$4
 OUTPUT_FILE_SUFFIX=$5
 
 verbose() {
-  if [ "${DEBUG}" = true ]; then
-    echo "${1}"
-  fi
+  echo "::debug::${1}"
+}
+
+error() {
+  echo "::error::${1}"
 }
 
 validate_inputs() {
   if [ -z "${WORKING_DIRECTORY}" ]; then
-    echo "ERROR: You must define your 'working-directory'" 1>&2
+    error "You must define your 'working-directory'"
     exit 1
   fi
-
   if [ -z "${INPUT_FILE}" ] && [ -z "${INPUT_FILE_PATTERN}" ]; then
-    echo "ERROR: You must define one of 'input-file' or 'input-file-pattern' to use this utility" 1>&2
+    error "You must define one of 'input-file' or 'input-file-pattern' to use this utility"
     exit 1
   fi
   if [ -n "${INPUT_FILE}" ] && [ -z "${OUTPUT_FILE}" ]; then
-    echo "ERROR: You must define 'output-file' input when using 'input-file'" 1>&2
+    error "You must define 'output-file' input when using 'input-file'"
     exit 1
   fi
   if [ -n "${INPUT_FILE_PATTERN}" ] && [ -z "${OUTPUT_FILE_SUFFIX}" ]; then
-    echo "ERROR: You must define 'output-file-suffix' input when using 'input-file-pattern'" 1>&2
+    error "You must define 'output-file-suffix' input when using 'input-file-pattern'"
     exit 1
   fi
 }
 
-verbose "DEBUG=${DEBUG}"
 verbose "WORKING_DIRECTORY=${WORKING_DIRECTORY}"
 verbose "INPUT_FILE=${INPUT_FILE}"
 verbose "OUTPUT_FILE=${OUTPUT_FILE}"
@@ -48,7 +47,7 @@ validate_inputs
 # Exec envsubst
 if [ -n "${INPUT_FILE}" ] && [ -n "${OUTPUT_FILE}" ]; then
   if [ ! -f "${WORKING_DIRECTORY}/${INPUT_FILE}" ]; then
-    echo "ERROR: ${WORKING_DIRECTORY}/${INPUT_FILE} file not found." 1>&2
+    error "${WORKING_DIRECTORY}/${INPUT_FILE} file not found."
     exit 1
   fi
   verbose "Applying envsubst with file ${WORKING_DIRECTORY}/${INPUT_FILE}"